I think most of us with Nexus One's have discovered or read about the display's PenTile pixel setup. I am frustrated, because I look at a Droid, and the resolution seems so much better. But maybe, hopefully something can be done about this.
My main question is: How would one go about tweaking/changing the Pentile display driver hardware?
Supposedly, you can eliminate color fringing by tweaking certain register values in the display drivers and reducing the amplitude of modulation. It sounds like you basically need to stop the locally adaptive filter detector.
This article describes the whole issue:
ww.metalev.org/2010/03/more-on-resolution-of-nexus-one-display.html
Have any of the developers out there discovered tweaks and/or fixes for this dilemma? Is anyone like cyanogen working on improving the nexus' resolution?
Sorry I have no idea how to address the issue, but as with the rest of the bugs my hope is that if we continue complaining/discussing them they should eventually register on googles radar as something important to their consumers and be addressed. I feel sure Google keeps tabs on sites like this and particularly this one, its in their interest to after all.
Are you actually looking at a physical Droid and saying this, or just looking at the article pictures?
EvanPatrickSmith said:
I am frustrated, because I look at a Droid, and the resolution seems so much better.
Click to expand...
Click to collapse
Uh, no. Don't lie. You can't tell the difference with the naked eye.
Paul22000 said:
Uh, no. Don't lie. You can't tell the difference with the naked eye.
Click to expand...
Click to collapse
Uh, yeah, you can. Within seconds of turning my screen on the first time I knew something was up. It didn't look as good as it should for an 800x480 screen.
The actual resolution is:
Green sub pixels - 800x480
Red sub pixels - 400x240
Blue sub pixels - 400x240
They're able to get away with this because the human eye is more sensitive to green, so the lower res red and blue don't detract too much from the image, but try displaying anything that is pure red or blue or really anything without green, and suddenly the actual resolution is worse than even something with a crappy 480x320 display.
I'm disappointed.
Seriously...this is a non-issue. The moto may have better "edge" detail for texts but N1's screen appears to have better color range than the moto. Unless you're looking at it in macro level (nose to screen), Nexus One more-than-satisfies the regular on-looker. Trust me, it's no slouch. The overall package of the N1 more than makes up for the less-than-perfect screen.
i read all about this PenTile display issue, and honestly when i look at my nexus screen, it simply looks fantastic. so i dont buy it, or just dont care either way as long as it looks good. even the XDA app which has black background with small white text, the letters look super sharp to me. i dont see any fringing or anything.
deleted
maxh said:
The actual resolution is:
Green sub pixels - 800x480
Red sub pixels - 400x240
Blue sub pixels - 400x240
Click to expand...
Click to collapse
Correction. There are one half as many Red and Blue subpixels, but you are indicating one quarter. 800x480 = 384,000 and 400x240 = 96,000, but there are really 192,000 Red and Blue subpixels.
The confusing thing about the layout is that they are checker-boarded so you can say "each of the 800 rows have alternating R&B" and you can say "each of the 480 columns have alternating R&B", but you can't say "every other row has alternating R&B" or "every other column has alternating R&B" which is what your numbers would boil down to.
The actual resolutions are:
Green - 800x480
Red - 800x240 or 400x480 depending on how you count it
Blue - 800x240 or 400x480 depending on how you count it
comparing my n1 to my buddies droid using color flashlight app from market, we compared colors on eachothers screens, the droid does not have as deep/dark of a black color as the n1, but does have a brighter white.
At first glance, I didn't notice a requisite 't' in the title of this article, and thought this was an entirely different discussion...
Seriously though, I have no issue with the screen, it's pixel count or clarity, and I haven't even noticed the 'color-banding' that the tech blogs all showed was 'sooo terrible' on this phone... Perhaps it's just me...
I think that if this is an item of concern for someone, and I believe that to be true of the original poster, then maybe this was not the best phone choice... maybe... There is always going to be something better than what you have at that given moment, it's just how things are. And the fact that this phone came out after the Droid means nothing to me... I wanted the Nexus One, and I got one, period.
Hey maybe since Cyangen is so fond of blue, maybe there will be a display 'little blue pill' to fix our phone's 'pentile dysfunction' but if there isn't (or it's not possible) I have zero regrets about my decision to buy a Nexus One...
<JUST SAYIN/>
flarbear said:
Correction. There are one half as many Red and Blue subpixels, but you are indicating one quarter. 800x480 = 384,000 and 400x240 = 96,000, but there are really 192,000 Red and Blue subpixels.
The confusing thing about the layout is that they are checker-boarded so you can say "each of the 800 rows have alternating R&B" and you can say "each of the 480 columns have alternating R&B", but you can't say "every other row has alternating R&B" or "every other column has alternating R&B" which is what your numbers would boil down to.
The actual resolutions are:
Green - 800x480
Red - 800x240 or 400x480 depending on how you count it
Blue - 800x240 or 400x480 depending on how you count it
Click to expand...
Click to collapse
You're right; my bad.
maxh said:
flarbear said:
Correction. There are one half as many Red and Blue subpixels, but you are indicating one quarter. 800x480 = 384,000 and 400x240 = 96,000, but there are really 192,000 Red and Blue subpixels.
The confusing thing about the layout is that they are checker-boarded so you can say "each of the 800 rows have alternating R&B" and you can say "each of the 480 columns have alternating R&B", but you can't say "every other row has alternating R&B" or "every other column has alternating R&B" which is what your numbers would boil down to.
The actual resolutions are:
Green - 800x480
Red - 800x240 or 400x480 depending on how you count it
Blue - 800x240 or 400x480 depending on how you count it
Click to expand...
Click to collapse
You're right; my bad.
Click to expand...
Click to collapse
Actually I think it is this checker-boarding, even more than the lower resolution itself, which is responsible for most of the issues where you can see the lower resolution. The text antialiasing, for example, has a red stippled noise along the edges that looks a lot like they didn't take the alternation of the red pixels into account when choosing which sub-pixels to turn on.
If the edges were "cleaner" then I don't think the resolution would be as noticeable. (Just IMO)
I think some software tweaks will make the situation much better, but it will always be a hassle for the software to deal with compared to a cleaner "3 subpixels in every pixel" arrangement that LCDs have... :-(
For what its worth, as far as the white vs black comment, I believe that is unrelated as far as the problem the OP describes. It could be true though.
OLED's like the N1 not only have the deepest blacks, but also use way less power displaying black. That is why the new WP7 is so centered on black, because it's designed for OLED screens and battery life. Maybe thats why Android features alot of black too.
The Droid is not just a different resoultion / color depth, its also a TFT LCD, which is different all around. OLED's are new. Its just first generation tech. Software could help alot, like with the Droid multitouch.
flarbear said:
Actually I think it is this checker-boarding, even more than the lower resolution itself, which is responsible for most of the issues where you can see the lower resolution. The text antialiasing, for example, has a red stippled noise along the edges that looks a lot like they didn't take the alternation of the red pixels into account when choosing which sub-pixels to turn on.
If the edges were "cleaner" then I don't think the resolution would be as noticeable. (Just IMO)
I think some software tweaks will make the situation much better, but it will always be a hassle for the software to deal with compared to a cleaner "3 sub-pixels in every pixel" arrangement that LCDs have... :-(
Click to expand...
Click to collapse
I'm pretty sure the "lower resolution" is not an issue at all, but as u say it's the PenTile sub-pixel layout that is a problem for many. I think that one has to have good eye sight to be able to notice it since there obviously are many who can't.
People who say it's a non-issue don't know what they are talking about. for many (including myself) the "fuzzy" text is very disturbing. I don't have any problems reading text on an lcd screen with standard RGB sub-pixel layout and with lower resolution but i do have problems with reading text on the Desire (same screen as the Nexus One) and not only very small text but normal size text as well.
Let's end the discussion about this being a real issue or not and focus on finding out if there may be a solution to the problem.
Does anyone know if it's at all possible to create some kind of software patch to tweak the registers and if so, how?
this has nothing to do with colour banding / checker board or colour issues of any kind, they were all false and related to the 16bit gallery which is software..
the problem is the sub pixel layout which causes edges to extend:
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http://blog.javia.org/nexus-one-display-and-subpixel-pattern/
and this is what causes the blurry looking text
in one of the blogs/sites i read that the creators of this screen, or similar versions of it, had the ability to turn this feature off and light each sub pixel individually (green sub pixel as 2 separate sub pixels) or something along those lines but it wasn't clear if this was available in the nexus screen.
i will try to find the link
behelit said:
this has nothing to do with colour banding / checker board or colour issues of any kind, they were all false and related to the 16bit gallery which is software..
Click to expand...
Click to collapse
Ummmm...
When I said "checkerboarding" I was specifically referring to the way that the Red and Blue sub-pixels are laid out on the graphic that you posted. If you ignore the green sub-pixels they look like a red/blue checker board, no? That layout does complicate the task of using sub-pixel components to antialias text (the standard algorithms for which assume that all pixels have the same 3 sub-pixels laid out in the same order).
My comment had nothing to do with the false comments made by the "engineers" at DisplayMate.
Paul22000 said:
Uh, no. Don't lie. You can't tell the difference with the naked eye.
Click to expand...
Click to collapse
This.
Anyone who claims otherwise, is a liar. The human eye can not differentiate pixels that small.
Looks great to me and looks great to everyone that looks at the phone and a lot of people do because they are attracted to the screen which, lol, looks great. Honestly I am not trying to make light of what is a problem for some but I cant help but wonder how many people would have this issue if they hadnt read about it. My guess would be very few.
GldRush98 said:
This.
Anyone who claims otherwise, is a liar. The human eye can not differentiate pixels that small.
Click to expand...
Click to collapse
Then I guess I don't have human eyes because I can see a blurry effect.
I've been well documented to love my n1 but the screen issue is a real issue. This comes down do how your mind puts together a picture. when looking at the n1 my mind usually creates a blurred spot on one part of the screen and its always there until I focus on it. this tells me it is indeed the screen causing this.
This is kinda of similar to how 1080i tv work. Th screen itself is only producing part of the picture but your mind does the rest. for the oled on the n1 this did not work out.
Related
read this and this.
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PenTile
The comments hit the nail on the head from the Arstechnica article. It's not that it isn't 480x800 exactly but it's the way the color pixels are arranged. Effectively you still have 480x800 addressible pixels, but it's the underlying hardware that gets you that. Without actually having one in my hand to compare to the wife's 3GS I can't honestly say if the display is better or worse for the purposes of a phone.
What the article does round-about say is that it's geared for images not exactly text--basically how an AMOLED TV would be arranged. Thankfully I don't think we'll have the same issues like in the old days of text looking like complete crap on a TV (for those that remember plugging in a C64/Apple II into a TV.)
Point is, it doesn't matter how they do it, as long as in the end--to the apps and images seen on it--that it's using 480x800. Beauty is in the eye of the beholder.
Its just a new technology, As long as 800x480 images show up as vibrantly and sharp as they do on the N1 I'm ok with it.
The possibility of driver tweaks to perfect it is icing on the cake.
I have OMNIA II and this Nexus One, both is AMOLED with 480x800 resolution.
I can confirmed is OMNIA II screen is definately better than Nexus One in term of clarity in details.
Just simply compared and you will notice image display in OMNIA II is much more sharpen and clear than Nexus One.
But not deny I believe Nexus One still is 480x800 just slightly low quality compared with AMOLED by Samsung.
But in overall, you still will definately satisfied on it with your Nexus One.
About the color banding issue, I believe Nexus One also same as OMNIA II running maybe 65k color or whatsoever, it is not 16M as you seen same color banding issue in both devices but it is ok as you can simply just reduce the banding in some image by changing the color dept from 16bit to 8bit (you can simply do this with PC IrfanView software). This will give you must better result, althought it is not perfect, always remember they is no perfect thing in this world.
the screen is 480x800
you can see that in the boot loader the size of the font ...........
in the apps and pic
this is just another .......... info
As long as my 960x800 wallpapers still work and look great, it doesn't really matter to me. The text has always been readable for me.
Wasn't everyone super satisfied with N1's display before this article was posted? or suddenly the display quality depreciated now???
Now on gizmodo.
Just comparing my Nexus with the Hero (soon to be on ebay).
And looking at the letter L for example (white on black in htc clock), the hero is indead 'clearer' when looking at the straight edges. It applies on other text with black on white as well.
This is not to confused with screen res. though. Since websites that would be 'fuzzy' and hard to read without zooming in on the Hero are perfectly readable on the Nexus.
Not quite sure if I understand the logic of that...
But the Nexus does have more information on the screen and so we pages are more readable while zoomed out.
Something to do wuth the way contasting edges merge ?
Zuber
xPatriicK said:
read this and this.
PenTile
Click to expand...
Click to collapse
The main picture in the article itself is hugely misguiding... he is comparing a icon created by nexus one screen with the one that was created by an emulator on large screen. if you zoom in you camera to pixel level, on your LCD, you will not see such pure white, grey or black squares.. they will be just like N1... bands of 3 colors, RGB. The only difference is the sequence of these 3 colors in LCD and N1.
Blue LEDs have less life than others and thus, pentile pattern in N1 is designed to reduce the dead pixel scenarios. All AMOLEDs use some pattern that is different from traditional LCD pattern. Therefore, fonts will always look bad on AMOLED until different font rendering techniques are developed. How bad? Well if you have been using Win XP on LCD and never had any problems with it... you will never know the difference. It wasn't until Vista that MS enabled by default the cleartype fonts which had special algorithms for LCDs.
We already have another thread on this matter. It might be better to merge them.
Another point of note.
It's not really noticable (perhaps just slightly) when looking from a normal operating distance, say 30cm from your eyes (no I didn't measure it).
Though you might bring the screen closer for some types of activity.
Zuber
Yes I can notice the lack of completely-straight lines (aka "fuzziness" or "bleeding") if I look closely at certain text like "l" or images with hard lines. It's not that big of a deal to me though because you really have to inspect the screen to see it, and issues that this is part of the risk when buying a phone with a newer screen technology.
I do think it's a little unfair though that the Nexus gets targeted so much when other phones that will sell more (like the Desire) are using the same screen.
arkavat said:
The main picture in the article itself is hugely misguiding... he is comparing a icon created by nexus one screen with the one that was created by an emulator on large screen. if you zoom in you camera to pixel level, on your LCD, you will not see such pure white, grey or black squares.. they will be just like N1... bands of 3 colors, RGB. The only difference is the sequence of these 3 colors in LCD and N1.
Blue LEDs have less life than others and thus, pentile pattern in N1 is designed to reduce the dead pixel scenarios. All AMOLEDs use some pattern that is different from traditional LCD pattern. Therefore, fonts will always look bad on AMOLED until different font rendering techniques are developed. How bad? Well if you have been using Win XP on LCD and never had any problems with it... you will never know the difference. It wasn't until Vista that MS enabled by default the cleartype fonts which had special algorithms for LCDs.
We already have another thread on this matter. It might be better to merge them.
Click to expand...
Click to collapse
absolutely agree with you... over time when the text rendering and graphic rendering improves, you'll see that this "so-called issue" will disappear... just like cleartype & LCDs... this will be a problem on "EVERY" AMOLED display at this time... it's just the way this hardware has been designed... and the software is not exactly up-to-date when it comes to rendering... and yeah ppl, don't compare this to standard displays like the Hero or iPhone... text & graphic rendering for these type of screens may look sharper because software has caught up with the hardware... I doubt anyone would ever notice this if this article wasn't posted...
faraz1992 said:
Wasn't everyone super satisfied with N1's display before this article was posted? or suddenly the display quality depreciated now???
Click to expand...
Click to collapse
Nope! I have known about the Pentile matrix OLED displays since late '06. I'm very happy that the N1 uses this superior technology.
Superior? I haven't heard much indicating it to be superior, except maybe in longevity. Or is there something else I'm missing?
Vash63 said:
Superior? I haven't heard much indicating it to be superior, except maybe in longevity. Or is there something else I'm missing?
Click to expand...
Click to collapse
A lot has been written about the Pentile matrix display technology for the past several years. Samsung loved it so much that they bought the company that pioneered it a few years back.
is it just me or does the white text on this screen have red sticking out edges. I think I read somewhere about the pentile matrix causing it. Can someone confirm. It's a shame as the screen is great otherwise. Also when you have a white screen, it's got a green line on the left and a red on the right.
Logicalstep
Sent from my GT-I9000 using XDA App
I can confirm this. I guess it'a downside to amoled screens... Oh well. Nothing is perfect.
None of that for me. Take yours into a store and compare side by side with another to see if yours is faulty.
Actually yes there is a tiny green strip down the left. i hadn't noticed that over the past two weeks!
I guess it is just a downside, but it's a pretty big one considering how samsung bit back at steve jobs fir saying the iphone screen is better. Jobs is right by the way ip4 is much crisper. Strange that none of the reviews would mention about these red things around the text. Every review I've read before buying said this screen was amazing clarity. Ib guess I must have better eyesight than these 40 something tech journalists!
Logicalstep
Sent from my GT-I9000 using XDA App
Really? I mean... REALLY, does this bother you? How close do you guys hold the screen up to your eyes? I notice this easily at 6-8 inches but seriously, when do you EVER need to hold it that close?
I am trying to see the red edge you are taking about from the xda app. The texts on this application are white with black background and vice verser.
Trying as hard as I can I couldn't see them. Are you using any screen protector? Are you sure it is not the diffraction from the protector causing this effect?
Sent from my GT-I9000 using XDA App
Logicalstep said:
Every review I've read before buying said this screen was amazing clarity.
Click to expand...
Click to collapse
Maybe because it does? I don't think there's a review that says the SGS screen is superior to the Iphone 4. They both have their positives and negatives. I looked at the ebooks that come with the SGS and I could easily read them without any problems or strain on the eyes.
People here are so picky. This doesn't work, that doesn't look right, they should have done this instead blah blah blah. I'm I using the same phone? cause I'm enjoying mine.
I can't understand why the hell people are going out of their way in such an amazing way to find stuff like this that NOBODY seems to notice even under heavy use.
No one complained about it in the nexus (nor about the green stripe/red stripe)
Yet, if you look for it- IT'S THERE. LIKE ON EVERY GODDAMN AMOLED SCREEN IN THE MARKET.
*This said, i can't see any red "outlines" on white text.
OP, you're too picky. This is probaly the most perfect non-iPhone screen money could buy now. Enjoy it.
If you look VEEEEEEERY closely, you can find a fair share if impurities in the iPhone screen as well. Mostly poor uniformity of back light dispertion (although a LED screen, it's FRAME led, not local dimming)
And some bleeding in bright shades of red.
Plus, the "blacks" are tinted purple.
All those are tpyical for IPS panels, but if you don't look for them under a magnifying glass (like people are doing here with the SGS), it's very unlikely you'll even notice.
Each technology has it's advantages and disadvantages. Currently all reviews agree unanimously- The SAMOLED screen on the SGS and the iPhone 4 retina display are the two best displays out there, without a definite first place between those two.
Listen I know some of you are quick to say I'm complaining and that I'm being too picky, but I'm only reporting what I noticed to be true on my phone. I posted to see if anyone else could see thee same thing. Not once didi mention I can't live with it, but for me I can see it and I'm suprised that in all the review they haven't mentioned about the red halo around entire text, your telling me that s not a fundamental thing? Come on, fir some people being promised the latest and greatest screen this might turn out to be issue.
Just to be clear, apart v ffrom this and a few small software issues,i love this phone, so please no flaming me for digging at the sgs.
Logicalstep
Sent from my GT-I9000 using XDA App
red halo around the entire text. sounded like you have a defect on your hand. My Galaxy s have no such problem.
This is a problem with the pentile technology they use in the screen, the screen can't display white on each individual pixel, it needs to blend the colours from two pixels together to create white. This can make text quite jagged and make the white bleed slightly at the edges.
I too am a little surprised this wasn't picked up in review (although trusted reviews did pick this up) but I think this raises an important point, you need to make you're own mind up and not just rely on reviews. You wouldn't normally spend this type of money on anything thing else without using it yourself first, and its mainly the impatient ones who couldn't wait long enough to try it themselves first who then have the complaints, that's the risk you take! ps I didn't try it first, too impatient
Sent from my GT-I9000 using XDA App
tenkom said:
I can confirm this. I guess it'a downside to amoled screens... Oh well. Nothing is perfect.
Click to expand...
Click to collapse
It's not a downside to amoled screens, it's a downside to samsung's proprietary pentile matrix. Pentile is not inherent to AMOLED; every other AMOLED manufacturer besides Samsung use normal RGB sub pixels.
Pika007 said:
I can't understand why the hell people are going out of their way in such an amazing way to find stuff like this that NOBODY seems to notice even under heavy use.
No one complained about it in the nexus (nor about the green stripe/red stripe)
Yet, if you look for it- IT'S THERE. LIKE ON EVERY GODDAMN AMOLED SCREEN IN THE MARKET.
*This said, i can't see any red "outlines" on white text.
Click to expand...
Click to collapse
Not on the Cowon S9/J3, Zune HD, Sony XE-1, or LG EL9500. I've taken macro pictures of my S9's screen and it is RGB.
Ok, 90% of the amoled screens floating around on the market. happy?
The vast majority of amoled screens use RGBG.
Logicalstep said:
is it just me or does the white text on this screen have red sticking out edges. I think I read somewhere about the pentile matrix causing it. Can someone confirm. It's a shame as the screen is great otherwise. Also when you have a white screen, it's got a green line on the left and a red on the right.
Logicalstep
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
I used "flashlight" application to look for the green & red lines on a white screen. I thought I might have seen the green line, but I couldn't even be sure to be honest, and there almost definitely wasn't a red line.
I looked at the text a little closer than I previously had and I felt I could see red within white text, however I didn't have a "red sticking out edges" problem. In every day use, and I use the screen primarily for reading internet articles and text messaging, I have never seen the colors within white text.
hmm it odd, f I launch the google home page in the browser, I can definitely see a Green line down the right hand side.
I wonder if my screen as some kind of alignment problem. I donlt even have to look that close to see it, it's a one pixel wide line down the left. and if I look to the bottom and right I see red pixels sticking out from the screen.
I realise that Pentile will make text a little jagged, but should it be this obvious?
I mean the clarity of text on this screen is very jagged compared to my Blackstone, even when I look very closely at that.
Logi
This is the best macro my camera can do at 100% crop.
Try taking the same picture and compare if your screen exhibit unacceptable differences, you may have a defective screen on your hand.
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Logicalstep said:
hmm it odd, f I launch the google home page in the browser, I can definitely see a Green line down the right hand side.
Click to expand...
Click to collapse
I can see what you're talking about, for me it's one green line down the left and a fainter red one down the right. But this is only on a white screen and when I look hard for it from about 10cm away - it's no big deal.
i prefer the look of the slcd and was wondering if someone wants to trade? I live in houston, tx and im really looking local. i have a fresh refurb from HTC repair center.
You got a fresh amoled from HTC just recently? Good luck with trade.
Sent from my Nexus One using XDA App
why? what do you mean?
navillos said:
why? what do you mean?
Click to expand...
Click to collapse
I didn't know if they still gave out amoled replacements. I thought they might mostly be slcd
eallan said:
I didn't know if they still gave out amoled replacements. I thought they might mostly be slcd
Click to expand...
Click to collapse
If you send in a AMOLED you should receive an AMOLED back and vise-versa.
mempf said:
If you send in a AMOLED you should receive an AMOLED back and vise-versa.
Click to expand...
Click to collapse
exactly. i tried to get them to send me a slcd for a replacement but, ultimately the repair center i guess calls the shots.
navillos said:
i prefer the look of the slcd and was wondering if someone wants to trade? I live in houston, tx and im really looking local. i have a fresh refurb from HTC repair center.
Click to expand...
Click to collapse
Ok, i need to ask, how the heck do we tell if we have the amoled or slcd version? Because I really want to know.
spbeeking said:
Ok, i need to ask, how the heck do we tell if we have the amoled or slcd version? Because I really want to know.
Click to expand...
Click to collapse
that's easy, look at the screen hehe
I don't know about the technical way... but there is a simple way... load a black backround.. and if it's not totaly black and you see a washed out black then you have a SLCD, if it's totaly black then it's a AMOLED.
You could probably see in settings or something.
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"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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How anyone can "prefer" the look of SLCD is interesting, I gotta admit. Are there some alternative motives here?
Eclair~ said:
How anyone can "prefer" the look of SLCD is interesting, I gotta admit. Are there some alternative motives here?[/QUOTE]
Because this is not the only difference.
Amoleds use that pentile pixel pattern, have noticeable gaps between pixels, drain huge amount of power on black text on white background, grossly over-saturate and poorly manage colors, burn in.
So it comes down to your personal preferences. There are a lot of people who are seriously irritated by pentile "drizzle" around small text or that grainy pixellated look due to the big gaps between pixels but don't give a damn about those huge viewing angles or deep blacks which you will distinctly notice only in the night anyway.
So I am also seriously thinking about trading my amoled nexus against another one with slcd.
The amoled advantages are simply irrelevant to me, but the disadvantages really "hurt".
Click to expand...
Click to collapse
I'll give you a point on the text..
BUT
Amoled
- uses less power than SLCD (there was a test with 2 Desires 1 amoled 1 SLCD... it played a movie over and over amoled won the race by a few hours of playtime)
- has better colors
- SLCDs have burn in too if you leave it on too long just like AMOLED
- big gaps between pixels? you usually have microscope goggles on when you operate with your phone?
- it does a little better in sunlight
if you get a Swap for your phone then it's ok do whatever. If you're thinking of new phone wait for the uber named.. lol : Super AMOLED Plus screens
mkrmec said:
I'll give you a point on the text..
BUT
Amoled
- uses less power than SLCD (there was a test with 2 Desires 1 amoled 1 SLCD... it played a movie over and over amoled won the race by a few hours of playtime)
- has better colors
- SLCDs have burn in too if you leave it on too long just like AMOLED
- big gaps between pixels? you usually have microscope goggles on when you operate with your phone?
- it does a little better in sunlight
if you get a Swap for your phone then it's ok do whatever. If you're thinking of new phone wait for the uber named.. lol : Super AMOLED Plus screens
Click to expand...
Click to collapse
I don't consider myself having good vision and the gaps between pixels and orange-red dots on the edges of white text were visible to me the first time I turned on the phone. It's grainy but still better than the iPhone 3G.
mkrmec said:
I'll give you a point on the text..
BUT
Amoled
- uses less power than SLCD (there was a test with 2 Desires 1 amoled 1 SLCD... it played a movie over and over amoled won the race by a few hours of playtime)
Click to expand...
Click to collapse
I wrote about black text on white background. I.e. typical web page or email, where black pixels typically are in single digit percent area. In this case amoled easily consumes more than double of the LCD power.
Watching movie is very different, where average pixel luminance is just a fraction of that.
If you want technical details look here, around the page 17:
http://data.4dsystems.com.au/downloads/micro-OLED/Docs/4D_AMOLED_Presentation.pdf
Don't know about you, but I almost never watch anything more than random youtube clip once in one or two months. So this advantage is totally irrelevant to me.
But I often use my email or read something up in the web, so that power consumption really hurts. It is actually the difference between "oh, ****, battery is already empty and I have two more hours to go" and "enough for a work day".
- has better colors
Click to expand...
Click to collapse
If over-saturated is better to you then yes. And no if someone prefers natural colors.
- SLCDs have burn in too if you leave it on too long just like AMOLED
Click to expand...
Click to collapse
Really? I never had a burn in on any of my LCD's. And I got first traces of burn in on my Amoled after a month of careful use. Never set to 100% brightness, never left "on" for extended amounts of time.
- big gaps between pixels? you usually have microscope goggles on when you operate with your phone?
Click to expand...
Click to collapse
I do not need any googles, I see those distinct pixels at a normal viewing distance (like 30-40cm). They are apparent enough to be noticeable every time I look at the screen. Every homogeneous area has that weird grainy texture. And I have just a normal vision.
- it does a little better in sunlight
Click to expand...
Click to collapse
Actually both are rubbish. But not due to the screen technology, but due to that silver glossy layer under the glass (digitizer I suppose).
if you get a Swap for your phone then it's ok do whatever. If you're thinking of new phone wait for the uber named.. lol : Super AMOLED Plus screens
Click to expand...
Click to collapse
They need to show first that they are any better in my usage scenario.
Well SLCD tends to look better in the sunlight, but AMOLED's colors are much more accurate (especially blacks, which look a lot like blues on SLCD).
Super AMOLED is the best of both worlds - decent performance in direct light, great, vivid colors. Too bad only Samsung's Galaxy S phones have SAMOLED displays.
Hopefully super amoled plus will be the best of all worlds. No more pentile
Good to know ill get an amoled version in exchange.
Sent from my Nexus One using XDA App
had mine returned last week after broken amoled screen, with an LCD screen.
this was in the UK though. i'm just as happy with the LCD
draugaz said:
I wrote about black text on white background. I.e. typical web page or email, where black pixels typically are in single digit percent area. In this case amoled easily consumes more than double of the LCD power.
Watching movie is very different, where average pixel luminance is just a fraction of that.
Click to expand...
Click to collapse
We know the differences between the technologies. What he's saying is that real world testing has shown otherwise. Engadget tested two Desires and the Amoled had better life. They even swapped batteries between the two phones and got the same results. There was another tech blog who tested Desires and found the same but its name escapes me right now.
Sent from my Nexus One using XDA App
eallan said:
Hopefully super amoled plus will be the best of all worlds. No more pentile
Click to expand...
Click to collapse
Remains to be seen.
For example, the Nokia N8 has such a amoled display without pentile matrix. As far as I know produced by Samsung.
If this is an indication of what is coming, then I am not impressed. The color drizzle is gone, but weirdly enough there is a distinct red glow on the right side on the letters (white text on black bacground).
Well SLCD tends to look better in the sunlight, but AMOLED's colors are much more accurate (especially blacks, which look a lot like blues on SLCD).
Super AMOLED is the best of both worlds - decent performance in direct light, great, vivid colors. Too bad only Samsung's Galaxy S phones have SAMOLED displays.
Click to expand...
Click to collapse
Blue instead the black on SLCD screens?
Is it some kind of joke?
SAmoled looks better in the sunlight, have no "view angle" and got true black.
But about colors - I dont think SAmoled got the accurate colors. Images/photos on SAmoled looks like they got 200% contrast.
I prefer SLCD.
- uses less power than SLCD (there was a test with 2 Desires 1 amoled 1 SLCD... it played a movie over and over amoled won the race by a few hours of playtime)
Click to expand...
Click to collapse
Because they tested it with the movie, which probably got a lot of dark scenes. Super Amoled very good with black color that doest eat the battery, but on full-white scene it consumes about 800mw. LCD - doesnt matter if it black, red or white - power consuming always about 240mw.
Notice that i talking about Super Amoled, because i didnt find any power test of standard amoled and as i know Superamoled is more power efficient than just amoled
Since almost all websites, sms screen and a lot of other things (MIUI rom for example, its almost complete in white) uses white background with black text, not a black background with white text, SLCD will be more better.
- has better colors
Click to expand...
Click to collapse
I think LCD got better colors
- SLCDs have burn in too if you leave it on too long just like AMOLED
Click to expand...
Click to collapse
Sony Super-LCD is kind of LCD screen, not an OLED. How it can burn?
draugaz said:
Because this is not the only difference.
Amoleds use that pentile pixel pattern, have noticeable gaps between pixels, drain huge amount of power on black text on white background, grossly over-saturate and poorly manage colors, burn in.
So it comes down to your personal preferences. There are a lot of people who are seriously irritated by pentile "drizzle" around small text or that grainy pixellated look due to the big gaps between pixels but don't give a damn about those huge viewing angles or deep blacks which you will distinctly notice only in the night anyway.
So I am also seriously thinking about trading my amoled nexus against another one with slcd.
The amoled advantages are simply irrelevant to me, but the disadvantages really "hurt".
Click to expand...
Click to collapse
You have LED Displays confused with Plasma displays lol.
Plasma runs on gas fumes that burn images to its screen if its used in the same area for too long.
LED OLED and AMOLED are perfect battery savers especially on black bacgrouns and with black text it saved loads of battery.
Hey guys, so I've been loving my Xperia z3 apart from one problem - the display. I was unhappy with the blue-leaning cold look. What I wanted was a proper, sRGB industry standard, calibrated screen. But I kept failing to get it right.
I've seen a lot of people sharing rgb values for white balance, and the problem with this is having been into a store I've realised that all the displays are a bit different and in some cases require completely different tuning. The only exception of course being that blue should be kept on 0
_______
I've managed to get my display as close to perfect by doing the following. I'm not a professional so I'm not suggesting this is a sort of gold standard or anything. It's making do:
1) Download this picture to your phone and set your brightness to the bottom instructions: http://www.furthertofly.com/wp-content/uploads/2011/12/brightness_contrast_setting.png
Why? Because after going wrong several times trying to calibrate my display to my macbook, I realized because the brightnesses of panels are different, this can RADICALLY affect how things look as you adjust the sliders.
2) I went into an Apple store and downloaded the above picture onto an IPhone 5c and adjusted the 5c's brightness similarly. Why a 5c? Because every journalist Ive seen on the web (Erica Griffin and Anandtech to name two) both say that the iPhone is the best calibrated display. Hands down. 5c because anandtech say it has the best white balance of any iPhone. (6 is a tiny bit blue/cold apparently)
3) Making sure x-reality and super vivid are off, I downloaded a pure white picture onto both my z3 and 5c and played with the z3's white balance until my phone was nearly perfectly in line with the iphone. Nearly.
Hope this helps someone, I know that sounds a bit OCD and silly to go to that trouble. But my display looks frickin awesome now, and felt this was worth sharing. Yes I know it's a bit amateur-hour....but so what.
Do you mind sharing your settings
Sent from my D6616 using XDA Free mobile app
I think it differs, unit to unit some are bluer than others, my phone is already fairly close to the chart OP put up. So OPs settings may or may not work for you.
Its probably better to calibrate to the chart OP gave, by yourself.
pezlomd said:
Do you mind sharing your settings
Sent from my D6616 using XDA Free mobile app
Click to expand...
Click to collapse
I purposely didn't reveal my settings as the point I was trying to make was that this is where everyone is going wrong. Even to the naked eye, two screens that LOOK comparable actually won't be once you start changing the w/b....
But anyway yeah my final calibration is R:70, G:230, b:0.
I have 20:20 vision (ish) and no colour blindness.
AGAIN, these settings should be absolutely irrelevant to your handset.
It will never be PERFECT because the Xperia uses a blue backlight led as opposed to a white one. So there will always be a little blue favouritism....but my point being you can get to 'almost-perfect' from the out-of-the-box ridiculousness that one finds.
Put it this way, my xperia z3 is now better calibrated than my macbook pro, but not QUITE (maybe 90% as good) as an iPhone 5c.
paddylaz said:
I have 20:20 vision (ish) and no colour blindness.
Click to expand...
Click to collapse
People's eyesight 1) is different to other people's, and 2) changes through age. There's no *right* value. If you go to the same webpage on your monitor, tablet and phone, you'll likely find they all look different.
poldie said:
People's eyesight 1) is different to other people's, and 2) changes through age. There's no *right* value. If you go to the same webpage on your monitor, tablet and phone, you'll likely find they all look different.
Click to expand...
Click to collapse
Yes I know I've never suggested otherwise. I only added those details in case someone (such as yourself) might offer them as reasons for unreliable variability. I just added that to rule out any visual eccentricities that might negatively affect the value of what i was saying.
The fact that it changes through age is irrelevant. I am referencing the screen to something else...so the contrasting reference will be consistent. sRGB calibrations are advanced measurements made using (among other things) wavelength. That's why they are a standard.
paddylaz said:
Yes I know I've never suggested otherwise. I only added those details in case someone (such as yourself) might offer them as reasons for unreliable variability. I just added that to rule out any visual eccentricities that might negatively affect the value of what i was saying.
The fact that it changes through age is irrelevant. I am referencing the screen to something else...so the contrasting reference will be consistent. sRGB calibrations are advanced measurements made using (among other things) wavelength. That's why they are a standard.
Click to expand...
Click to collapse
If you're calibrating your phone so that images you produce in phone are more likely to be reproduced accurately on other people's devices, then you're doing it right.
If, however, you're calibrating your phone to an objective external definition of what is accurate without taking your own eyes into account, you're doing it wrong, because - for example - if you're older and your eyesight is therefore tending towards the yellow then you need to compensate for that, otherwise your spot-on, 100% accurate colour reproduction is going to look too yellow.
Also, bear in mind that absolutely nobodies phone, tablet, monitor, tv etc is calibrated "properly", not are they set to the same brightness/contrast settings, and some people have dynamic this and cinema mode that. Perhaps in the future this'll be handled properly, but not - I suspect- on most consumer equipment.
poldie said:
If you're calibrating your phone so that images you produce in phone are more likely to be reproduced accurately on other people's devices, then you're doing it right.
If, however, you're calibrating your phone to an objective external definition of what is accurate without taking your own eyes into account, you're doing it wrong, because - for example - if you're older and your eyesight is therefore tending towards the yellow then you need to compensate for that, otherwise your spot-on, 100% accurate colour reproduction is going to look too yellow.
Also, bear in mind that absolutely nobodies phone, tablet, monitor, tv etc is calibrated "properly", not are they set to the same brightness/contrast settings, and some people have dynamic this and cinema mode that. Perhaps in the future this'll be handled properly, but not - I suspect- on most consumer equipment.
Click to expand...
Click to collapse
Well I did say it wasn't meant to be professional grade. I'm young, decent eyesight, and there is such a thing as proper calibration in the digital/tech world - sRGB is the international standard for displaying content on the internet for instance. Anyway, I posted my methodology because it's something that someone can do very easily just by popping into an apple store on the way to work etc - much easier than spending ages comparing peoples' posted values that are all going to be even more subjective and open to error.
I've got loads of phones in my shop so i've tried to callibrate it to match other phones, but because the blue level on mine is so high, I just can't get it anywhere near other phones. I've tried Iphone 5c's, 5s's, Xperia Z and Z1, HTC One.
Just can't get the display anywhere near them. They always seem too yellow and my device won't match it so i'm trying very very hard to get used to the blue screen.
abhinav.tella said:
I think it differs, unit to unit some are bluer than others, my phone is already fairly close to the chart OP put up. So OPs settings may or may not work for you.
Click to expand...
Click to collapse
You're right. I returned my first Z3 and I compared it to my second and it was a big difference. My second one has much warmer whites and I don't need to calibrate it.
When I did a warranty exchange with my Nexus 5 the screens looked different as well.
I'm a little lost, what exactly are you supposed to do once you download this Pic?
marc539 said:
I'm a little lost, what exactly are you supposed to do once you download this Pic?
Click to expand...
Click to collapse
Calibrate the screen so you can "barely" see the separation between the black bars.
abhinav.tella said:
Calibrate the screen so you can "barely" see the separation between the black bars.
Click to expand...
Click to collapse
How is this going to address "too warm/too blue" white balance issues?
paddylaz said:
I purposely didn't reveal my settings as the point I was trying to make was that this is where everyone is going wrong. Even to the naked eye, two screens that LOOK comparable actually won't be once you start changing the w/b....
But anyway yeah my final calibration is R:70, G:230, b:0.
I have 20:20 vision (ish) and no colour blindness.
AGAIN, these settings should be absolutely irrelevant to your handset.
It will never be PERFECT because the Xperia uses a blue backlight led as opposed to a white one. So there will always be a little blue favouritism....but my point being you can get to 'almost-perfect' from the out-of-the-box ridiculousness that one finds.
Put it this way, my xperia z3 is now better calibrated than my macbook pro, but not QUITE (maybe 90% as good) as an iPhone 5c.
Click to expand...
Click to collapse
Green at 230? WOW! lol. Little too dramatic, lol. Try Red 36, Green 8, and Blue 0. But then again, my default whiteness isn't too bad. little cool, but just a small nudge in red and green will do the trick!
With default settings my phone is showing a bit warmer / reddish colors. I have to increase the blue color a bit in order to make white background pure white.
z3 dual
what's you're display calibration for z3 dual there, anyone? I guess the z3 dual screen is much better than the single variants.
70/230/0 is far too off to be deemed accurate. All my monitors are calibrated with an i1Display pro and I've visually calibrated my Z3 alongside the monitors to match (169/188/47 RGB):
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
My values won't work the same on any other Z3 as you'd expect but it's a starting point at least I guess.
robbiekhan said:
70/230/0 is far too off to be deemed accurate. All my monitors are calibrated with an i1Display pro and I've visually calibrated my Z3 alongside the monitors to match (169/188/47 RGB):
My values won't work the same on any other Z3 as you'd expect but it's a starting point at least I guess.
Click to expand...
Click to collapse
Robbie, I think you may still have x reality or superivivid enabled, since the red on the headscarf via the z3 is very saturated, I like it like so but the monitor behind it depicts a more purplish subdued red instead.
Nope I have all display processing features disabled as I never liked using them^^
If you just look at your phone screen you won't tell it's blue. Until you hold it directly to a good screen, like a mac, then you will tell its kinda blue with bright images. I won't change the white balance, since I cant tell the difference without a 'real white' screen next to it and I like the brightness. Its nice to be able to read your messages directly in the sun.
Now that we have our first custom kernel available (Thanks @flar2). We can now adjust the display color settings on the 5X. This will come in VERY handy for those who feel that the screen on their 5X is too yellow. It will also allow you to make tweaks to saturation, contrast, etc. to correct the lackluster color depth that the factory settings provide.
There are plenty of app options for performing these tweaks, but the two below are confirmed to be currently working on the 5X:
KCal Color Control (XDA Link)
EX Kernel Manager (Play Store Link)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
EDIT: It turns out I had a bad device with a yellow tinted display. I've since RMA'd it for one with a MUCH whiter display. So the below color settings won't be ideal for those who did get a good screen on their device.
**Comparison pics of the old screen vs new screen in post #35
Color calibrations used with my previous (yellow display) 5X. If you have a yellower display, these will be good for you:
Red: 235
Green: 245
Blue: 256
Saturation: 50
Value: 130
Contrast: 130
I've spent some time calibrating my new, much whiter screen. They are very close to the settings szucsgf mentioned below in the comments with some more saturation:
Red: 246
Green: 250
Blue: 256
Saturation: 50
Value: 130
Contrast: 130
Feel free to post your results so we can compile some of the best settings here.
Thanks for posting this! How did you pick your values? Did you compare to a calibrated color chart, like the kind used by photographers? Or did you use a colorimeter?
I just eye balled it with the phone sitting next to my iPhone 6S and color calibrated Nexus 6. I was able to eliminate the yellow hue completely and make the blacks much deeper. I know other members here use colorimeters and other tools for more accurate adjustment, so I imagine in time they will chime in with much better calibrations. But for now, my settings are a good starting point to at least eliminate the yellow (warm) hue the screen has by default.
sn0warmy said:
I just eye balled it with the phone sitting next to my iPhone 6S and color calibrated Nexus 6. I was able to eliminate the yellow hue completely and make the blacks much deeper. I know other members here use colorimeters and other tools for more accurate adjustment, so I imagine in time they will chime in with much better calibrations. But for now, my settings are a good starting point to at least eliminate the yellow (warm) hue the screen has by default.
Click to expand...
Click to collapse
Thanks for the explanation iphones do tend to be calibrated pretty well, but eyeballing it isn't the most accurate method. It'll help get the color balance, but probably not the white, black, or grey points.
As a photographer, I'm actually pretty happy with the warmth in the screen. I find most monitors and phones to be super cool (blue) and that they make my photos look way worse than the originals.
Nice eye ball settings! Looking forward to comparing yours to more "scientific" numbers
sn0warmy said:
I just eye balled it with the phone sitting next to my iPhone 6S and color calibrated Nexus 6. I was able to eliminate the yellow hue completely and make the blacks much deeper. I know other members here use colorimeters and other tools for more accurate adjustment, so I imagine in time they will chime in with much better calibrations. But for now, my settings are a good starting point to at least eliminate the yellow (warm) hue the screen has by default.
Click to expand...
Click to collapse
iphones are calibrated with a white point around 7000-7200K, which is slightly blue. While many find that visually appealing, it's not quite 'accurate.' 6500K is the target for an accurate white point and phonearena measured the 5x at a white point of 6799K. I've found that while the screen may not look as cool when next to other phones, pictures on the 5x look damn good
I think some issues with 'yellow' screens may have more to do with panels having brightness problems
I presume root is needed for both of the apps?
What's the best way to do this without root? Recommend an app?
XPERIA Z5 GREEN
Root is absolutely required.
Sent from my Nexus 5X using Tapatalk
0.0 said:
I presume root is needed for both of the apps?
Click to expand...
Click to collapse
Root is required to flash a kernel that allows for these color calibrations. So, in turn, root is also required to use the apps required to make these adjustments.
Jooosty said:
What's the best way to do this without root? Recommend an app?
Click to expand...
Click to collapse
If you don't want to root, there are apps you can use to apply an overlay on the screen to eliminate the yellow (warm) hue.
One app I used previously is:
https://play.google.com/store/apps/details?id=com.netmanslab.sa
With that app I found that if you leave everything as is and just turn Blue up +10 - +15 it eliminates the warm hue. However, this is simply adding a layer of blue and not truly calibrating the screen. So I still recommend, to those who want to do it right, that you root and use a custom recovery to properly calibrate the screen.
It's actually quite annoying that Google doesn't allow people to make these calibrations in stock configuration without rooting, but that's a whole different topic.
sn0warmy said:
Now that we have our first custom kernel available (Thanks @flar2). We can now adjust the display color settings on the 5X. This will come in VERY handy for those who feel that the screen on their 5X is too yellow. It will also allow you to make tweaks to saturation, contrast, etc. to correct the lackluster color depth that the factory settings provide.
There are plenty of app options for performing these tweaks, but the below two are confirmed to be currently working on the 5X:
KCal Color Control (XDA Link)
EX Kernel Manager (Play Store Link)
I'm currently using the following settings, which mimic the display on my iPhone 6S nicely, while being just a hint more "warm" to make it easier on the eyes.
Red: 235
Green: 245
Blue: 256
Saturation: 50
Value: 130
Contrast: 130
Feel free to post your results so we can compile some of the best settings here.
Click to expand...
Click to collapse
Hey your colors are pretty nice! I like the whiter look on the phone and this is good. Will be using it for some time, thanks!
I notice the OP mentions the yellow-ish tint on the display. Google is actually replacing for this particular issue- My first 5X had an issue with the receiver so call quality sucked and the one I just got in the mail has a very warm hue to it, between red and yellow and after a phone call they are sending me another one.
Can anyone with a color sensor/calibrator calibrate for true white?
True white according to the sensor is usually a lot more yellow than people are used to. I know where are values out for my computer monitor and I was surprised.
I think for the most part, my Nexus 5x is closer to true white than the really cool whites that my M7 had. Though it's warmer than true white on comparison.
I might be try comparing the two and color calibrating based on comparison of whites to my monitor. (My monitor has color calibration settings based on the same model. I do not have my own color colorimeter, it's not worth it since I don't do any kind of media work)
Edit - I didn't end up installing the kernel because I wanted to keep systemless root, and I don't think that was included with the boot.img
However, I do have CF Lumen working and I used the color filter to acheive (reasonably/humanly) close results.
CF Lumen uses a color filter in from 0-1, where 1 represents 100% of the respective RGB value and 0 filters out all of the respective color. Since the colors are appearing anywhere from yellow to more orange-ish hue, I set R to .969 and G to .929 with B at 1.. You can translate that to the results you want in color control by multiplying these decimals with the maximum possible value ( For example R should be 256 * .969) The increment of change isn't as fine as I'd like, but what are you gonna do, it's just a phone. Most phones don't even come close to true white anyway.
I want to also note that your results will vary, probably. These are values for my phone. They're a good starting point. There seems to be reports of huge variations of yellow screens, with some people (placebo? eyes getting used to it) saying it has resolved over a week or two.
Again, most people used to default LED/LCD screen white will even think this calibration is too yellow. Colorimeter calibrations always calibrate for the accepted true white, and therefore will seem warmer than what most people are used to, which is a very cool white. As long as your eyes are happy, there's really no issue I guess. However, I would like to point out that true white is really a lot easier on the eyes than the cooler white that most phones have these days. Blue colors to the eyes seem to "scatter" more and human vision has a harder time focusing with bluer colors. On the other hand if things become to warm, it becomes hard to distinguish things from one another. That's why at night time, or dark conditions, CF lumen is set to warmer colors because at night time vision in the eye has much less ability to contrast and distinguish, and relies more on things like outlines, and movement. (How many times were you driving at night and didn't realize something (deer!) was there until it moved?) Bluer light (most scientifically it's Green, but blue does a good job too) activates cones, and shuts down night vision, blue light is perceived to scatter more and is harder to look at the screen at night, while retaining night vision.
if i install the custom kernel and calibrate the screen, then restore to stock kernel does the screen remain calibrated?
electric0ant said:
if i install the custom kernel and calibrate the screen, then restore to stock kernel does the screen remain calibrated?
Click to expand...
Click to collapse
Nope.
Zach1928 said:
I notice the OP mentions the yellow-ish tint on the display. Google is actually replacing for this particular issue- My first 5X had an issue with the receiver so call quality sucked and the one I just got in the mail has a very warm hue to it, between red and yellow and after a phone call they are sending me another one.
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You're talking about something completely different. Nexus devices are known for having a warmer (yellower) hue right out of the box due to lack of display color calibration. Unfortunately, with the 5X, some people are receiving phones with excessively yellow displays. In those cases, Google is replacing those defective devices. This thread is referring to color calibration for screens that are not defective as they still tend to have a warmer hue to them. Some prefer the warmer hue, some don't. That's why this thread exists so people can refer to it to calibrate their screen to their liking. There is no "one size fits all" solution.
sn0warmy said:
Nope.
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thanks, so the screen calibration is managed by the kernel then.
then with the custom kernel installed, what happens with updates? do OTA updates still work?
electric0ant said:
thanks, so the screen calibration is managed by the kernel then.
then with the custom kernel installed, what happens with updates? do OTA updates still work?
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The screen calibration is managed by the app. But the custom kernel allows for this calibration. If you uninstall the app and reboot the phone, your screen calibration will go back to factory settings.
As far as non-color calibration related questions (such as root and OTAs) please take that to another thread or feel free to PM me. I'm afraid this thread is getting side tracked very fast and I'd like to keep it on topic with comments regarding color calibration tweaking.
sn0warmy said:
Nope.
You're talking about something completely different. Nexus devices are known for having a warmer (yellower) hue right out of the box due to lack of display color calibration. Unfortunately, with the 5X, some people are receiving phones with excessively yellow displays. In those cases, Google is replacing those defective devices. This thread is referring to color calibration for screens that are not defective as they still tend to have a warmer hue to them. Some prefer the warmer hue, some don't. That's why this thread exists so people can refer to it to calibrate their screen to their liking. There is no "one size fits all" solution.
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Click to collapse
Interesting. All I know is the replacement I got is night and day from the first one and Google is replacing it (didn't even require the picture I took of the two). 3 people I sent it to commented on the difference between the two, favoring the first one.
Zach1928 said:
Interesting. All I know is the replacement I got is night and day from the first one and Google is replacing it (didn't even require the picture I took of the two). 3 people I sent it to commented on the difference between the two, favoring the first one.
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You got pretty lucky then, there are reports of people getting replacements and the color hue was worse. There really wasn't any control checks with the display color calibration in this case.
Big disappointment.
formula91 said:
You got pretty lucky then, there are reports of people getting replacements and the color hue was worse. There really wasn't any control checks with the display color calibration in this case.
Big disappointment.
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Fingers crossed I get a better one, I really like the phone. At least they aren't pulling a OnePlus and insisting a) you're crazy or b) it's supposed to be piss-yellow. Haven't spent more than 15 minutes on the phone with them in either case