Database Users

Possible Display Calibration Correction?

"Many of the images were noticeably washed out -- they looked like over exposed photographs with missing highlights, reduced image contrast, and weak colors," Soneira wrote.
But I was curious why these shortcomings weren't showing up in reviews -- and why Soneira seemed to be contradicting himself when he told me that the display itself was "high quality." So, I asked him to clarify this.
Here's what he said.
The LCD panel itself is excellent. Good luminance, high Contrast Ratio, excellent Color Gamut and Color Saturation. So the raw LCD display itself is great. The problem is that the factory calibration of the display parameters (generally performed via firmware) is way off (particularly the Intensity Scale) so the images that appear on this fine LCD display look washed out...the display produces washed out images and colors in spite of the fact that it has a display with excellent color saturation and contrast. Similarly, a great camera will take poor quality photos if it isn't properly factory calibrated.
He expands on particulars in the blog post.
There is about a 25 percent compression of bright image content, which is quite substantial. This holds for both the Gallery Viewer and the Chrome Browser. On some cheap displays this is done intentionally by the manufacturer because the compression actually makes them appear artificially bright. Here I think it's probably just incompetence by the manufacturer, which is too bad because they messed up a really nice display.

I also want to know about this. The contrast seems very low to me. This display can do better than what it's currently set at.

Wrong thread ?
Sent from my Nexus 7 using xda premium

I have some faith that when morfic makes a trinity kernel for the n7 that some of this will be rectified. Unfortunately, his order was held up. I guess the first step is to find out what code is tweak able in the kernel to actually do this.
Sent from my Galaxy Nexus using xda premium

I believe I saw a mod which corrected some of the Galaxy Nexus dislpay shortcomings by calibrating it a bit differently. I wonder if the same could be said for the Nexus 7. @piam, I don't know why the reviewers never mentioned this in their reviews, but that's the first thing I noticed when I opened up my Nexus 7, and that was on the stock wallpaper that was on.
I just hope that someone gets a mod out soon, cause its a really great tablet looking cheap just because of the washed out colours.

I find that the home screen is not well optimized but Netflix is looking pretty good. I also find that lowering the brightness helps...which does indicate a calibration issue.
Its pretty good already though...almost quibbling.
Sent from my Galaxy Nexus using xda premium

mike infinity said:
I find that the home screen is not well optimized but Netflix is looking pretty good. I also find that lowering the brightness helps...which does indicate a calibration issue.
Its pretty good already though...almost quibbling.
Sent from my Galaxy Nexus using xda premium
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I've noticed while using YouTube as well. If play videos on my Galaxy Nexus side by side with my Nexus 7, the colors look washed out. Probably there will be a kernel fix.

christophermx4 said:
I've noticed while using YouTube as well. If play videos on my Galaxy Nexus side by side with my Nexus 7, the colors look washed out. Probably there will be a kernel fix.
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Hopefully software can fix it, if it's a firmware problem.

Anybody knows about today status ?
We need official or not official update for our nexus 7 device!
Asus must give us possibilities for change white color compession!!!

christophermx4 said:
I've noticed while using YouTube as well. If play videos on my Galaxy Nexus side by side with my Nexus 7, the colors look washed out. Probably there will be a kernel fix.
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Well it would, the GN is oled which would make any lcd look rubbish
Sent from my Nexus 7 using xda premium

Screen Modes Comparison?

I've noticed in the phonearena review that there is a new Adobe RGB screen mode and a new Adapt Display option. Are there any articles that show and tell exactly how these work and if the colour reproduction is as good as the iphone 5 or HTC one?

bubu_bubu said:
I've noticed in the phonearena review that there is a new Adobe RGB screen mode and a new Adapt Display option. Are there any articles that show and tell exactly how these work and if the colour reproduction is as good as the iphone 5 or HTC one?
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I was wondering the same. I didn't care for the colors on the S3 and find my iPhone 5 screen/colors much better. I think I'm really going to like the S4, particularly if you can change the display modes.

bubu_bubu said:
I've noticed in the phonearena review that there is a new Adobe RGB screen mode and a new Adapt Display option. Are there any articles that show and tell exactly how these work and if the colour reproduction is as good as the iphone 5 or HTC one?
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htc has Super LCD
iPhone has IPS
and Samsung has Super AMOLED with some special matrix of pixel from Samsung
So samsung devices are little bit darker than iphones and htcs and thr s little bit problem in sun-light to use tham (u will have to set brightness to 100% to use galaxy S3 (for example) on sun-light)
u can search Galaxies pixel matrix on google and check lots of img about it so u will get ur answer better.
:good:

x102x96x said:
htc has Super LCD
iPhone has IPS
and Samsung has Super AMOLED with some special matrix of pixel from Samsung
So samsung devices are little bit darker than iphones and htcs and thr s little bit problem in sun-light to use tham (u will have to set brightness to 100% to use galaxy S3 (for example) on sun-light)
u can search Galaxies pixel matrix on google and check lots of img about it so u will get ur answer better.
:good:
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You haven't read my post have you?

bubu_bubu said:
I've noticed in the phonearena review that there is a new Adobe RGB screen mode and a new Adapt Display option. Are there any articles that show and tell exactly how these work and if the colour reproduction is as good as the iphone 5 or HTC one?
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To the OP, check this piece via GSMArena (with links to the original source) - looks like the Adobe and Film modes are the real deal for colour temperature and accuracy. Colour accuracy is dramatically better than the One, which has a colour temperature of ~8000 (worse than the S3, decidedly blue tint that discolours greys in particular, I notice the same on my HTC BUtterfly).

First, title says it all
Comparison threads are not allowed on xda

CNexus said:
First, title says it all
Comparison threads are not allowed on xda
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whats your problem why dont you go troll somewhere else. you have to make silly comment on each thread.
OP i have just had Galaxy S4 coluor reproduction isnt as goo as lcds unfortunately. still same on RGB mode screen get dimmer too

will Note 3 have 1080p non-pentile?

Do you think the Note 3 will come with a 1080p non pentile screen or 1080p pentile?

I hope it's non pentile, love the RGB SAMOLED on Note II. 1080p RGB SAMOLED is going to be awesome, It's already awesome as it is

Should read this ->http://forum.xda-developers.com/showthread.php?t=2247245

Roumers says DAT Sammy Gona use OLED or LCD4 in order to save power ...
Sent from my GT-N7100 using xda premium

^AMOLED is OLED. SLCD? Doubt it.

It better be 1080p rgb if they want me to "upgrade". Though I'm not that interested in 1080p, the reported energy savings of the newest oled screens is alluring.
Sent from the mighty Note II

dr.m0x said:
It better be 1080p rgb if they want me to "upgrade". Though I'm not that interested in 1080p, the reported energy savings of the newest oled screens is alluring.
Sent from the mighty Note II
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Yeah, 1080p isn't a dealbreaker for me. I don't honestly still see much difference on a good, well calibrated 720 vs 1080p screens. Probably people with perfect 20/20 vision are the ones who swear they see it, but anyways, I'm more than good with 720p
If they switch to pentile instead of rgb, doesn't matter if it's 1080p, would surely feel awful tbh. Hate pentile displays

https://www.youtube.com/watch?v=x6-a_sQbRSo
Look at both screens there, Note II and S4.

aiotor algebras
Amoled screens have low brightness so I hope they increase the brightness on outdoor

xwonic said:
Amoled screens have low brightness so I hope they increase the brightness on outdoor
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Actually, it is possible to increase brightness of AMOLEDs a lot - but that would degrade the screen super-fast. Hence the low brightness levels/limits. And obviously the battery drain would be massive considering the whites draining a lot of battery already.

I honestly cannot see the point in a 1080p screen on a phone, not that it is a bad thing by any means, but I find the current resolution more than adequate and more pixels mean higher battery drain/more stress on the gpu.
Sent from my GT-N7105 using xda app-developers app

Atomix86 said:
I honestly cannot see the point in a 1080p screen on a phone, not that it is a bad thing by any means, but I find the current resolution more than adequate and more pixels mean higher battery drain/more stress on the gpu.
Sent from my GT-N7105 using xda app-developers app
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In Microeconomics, in consumer choice theory, when analysis the indifference curve, there is a assumption knows as non-satiation, search them up.

Atomix86 said:
I honestly cannot see the point in a 1080p screen on a phone, not that it is a bad thing by any means, but I find the current resolution more than adequate and more pixels mean higher battery drain/more stress on the gpu.
Sent from my GT-N7105 using xda app-developers app
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+1. Can hardly notice any difference between those full HD phones and my Note II after calibration. Actually to me N2 looks quite superior to many of those screens. Don't usually put screens under microscopes though

FinancialWar said:
In Microeconomics, in consumer choice theory, when analysis the indifference curve, there is a assumption knows as non-satiation, search them up.
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What on earth are you talking about?
Sent from my GT-N7105 using xda app-developers app

Atomix86 said:
What on earth are you talking about?
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Basically, axiom of non-satiation says "more is better".
therefore 1080p > 720p.

FinancialWar said:
Basically, axiom of non-satiation says "more is better".
therefore 1080p > 720p.
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Click to collapse
Nope, I have already stated I would prefer battery life over more pixels, the current display is fine.
By that baseless logic, you could say "more cancer is better than less"... makes no sense.

Atomix86 said:
I honestly cannot see the point in a 1080p screen on a phone, not that it is a bad thing by any means, but I find the current resolution more than adequate and more pixels mean higher battery drain/more stress on the gpu.
Click to expand...
Click to collapse
Apparently some people have super vision and can see the pixels even in a 440DPI screen. (not joking)

Well (un)luckily, I don't even have 20/20 vision (still pretty decent eyesight, mind) and I'm good with my Note 2
I think lot of the "way too obvious" differences people notice are mere placebo effect. I mean 440ppi full HD? That HAS to be WAY better right? Seeing what they want to see etc. But yeah, probably there are people with perfect super vision who can make out the difference.

tuxonhtc said:
Well (un)luckily, I don't even have 20/20 vision (still pretty decent eyesight, mind) and I'm good with my Note 2
I think lot of the "way too obvious" differences people notice are mere placebo effect. I mean 440ppi full HD? That HAS to be WAY better right? Seeing what they want to see etc. But yeah, probably there are people with perfect super vision who can make out the difference.
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As soon as people needs a microscope to tell which one is better I loose interest. Even at home, when everybody is buying the new Hi-Res flat screen TV, I choose to buy a projector, It's only 720p but the size is 300cm X 170cm. No TV can beat that yet

Thread cleaned. If your not going to post something useful then don't post here, its simple.

[Q] Colour Sharper

So i have a nexus 10 and my dad has an iPad 3rd gen. Now the thing is that from specs my screen is supposed to be better than his but then after comparing two same 720p playing videos it seems that the ipad 3rd gen gives more sharp colours than mine and was wondering whether there was a way to fix(without root) this as i remember my brother showing me on his S3 settings a way to change his screen settings to dynamic which makes colours look a lot more sharp and better looking though S3 has touchwiz and i have vanilla
Thanks

By sharp I assume you have to mean saturated. Colors look slightly better on the KTManta kernel, but we do not have any sort of color control at all and probably never will. There are a TON of posts on this matter so you should just go search them.

adnaan146 said:
So i have a nexus 10 and my dad has an iPad 3rd gen. Now the thing is that from specs my screen is supposed to be better than his but then after comparing two same 720p playing videos it seems that the ipad 3rd gen gives more sharp colours than mine and was wondering whether there was a way to fix(without root) this as i remember my brother showing me on his S3 settings a way to change his screen settings to dynamic which makes colours look a lot more sharp and better looking though S3 has touchwiz and i have vanilla
Thanks
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You can tweak this through various apps and kernels, but there are different types of screens (Ex: Amoled, IPS) and they all produce colors differently.
Edit: I stand corrected...
Sent from my Nexus 4 using xda premium

speedygonzo said:
You can tweak this through various apps and kernels, but there are different types of screens (Ex: Amoled, IPS) and they all produce colors differently.
Sent from my Nexus 4 using xda premium
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Sadly, not true with the nexus 10. No apps or kernels. Listen to Enigma.
Sent from my EVO using xda app-developers app

[Q] Samsung Galaxy S5 Display (Color Representation)

Hi,
I'm in process of buying Galaxy S5 but have one question to be answered. I've read some mixed reviews regarding the display performance and color representation of the S5 and I couldn't decide who to believe. I've read that cinema mode is the most accurate but also seen some reviews that it isn't as good either. A one of the most recent article on PhoneArena about displays also added to my fears regarding S5 display.
I want to ask from S5 users that is it really the case, does it really noticeable while viewing videos/images or playing games etc. How does cinema mode competes with M8, Z2 etc.

Phonearena have done quite a few blunders recently in their reviews, I don't trust them.
I'd rather go for AnandTech and DisplayMate test results. They have given the S5 very high marks.
Sent from my SM-G900H using Tapatalk

drakester09 said:
Phonearena have done quite a few blunders recently in their reviews, I don't trust them.
I'd rather go for AnandTech and DisplayMate test results. They have given the S5 very high marks.
Sent from my SM-G900H using Tapatalk
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Thanks for your reply. As you are using S5 can you please tell me your personal experience with display.

I recently changed from a S3 to S5 (G900F). The colors are much more natural than S3's, the screen is a lot brighter and the quality is awesome. It has extremely deep black so deep that you can't distinguish if the screen is off or on! Even in a dark room. The brightness helps when you are outdoors. I live in Macedonia, Greece and here in Greece we have a lot of sunshine through the year, especially now I find it easier to use under sunlight than the S3. Also the white is very good.
So, to sum up:
-Natural colors
-Deep black
-Very bright when you need it.
-Battery savings thanks to amoled technology.
I recommend that you use the phone in person before buying it, from a friend or at a store. This is my personal experience so don't take it for granted. You may end up with different results from me when you use it because everyone has different needs/expectations.

tahirk said:
Thanks for your reply. As you are using S5 can you please tell me your personal experience with display.
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I really like it but I use it on Cinema mode all the time. I can't stand oversaturation coming from a Nexus 5.

So, would you guys suggest that Cinema Mode is the way to go for everyday use?

drakester09 said:
I really like it but I use it on Cinema mode all the time. I can't stand oversaturation coming from a Nexus 5.
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Does it gets close to Nexus 5 in Cinema mode?

tahirk said:
Does it gets close to Nexus 5 in Cinema mode?
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Quite a bit, it's not bad at all.

Cinema mode is the Most natural But is stile Not perfect. With root could be possible To chance color value in The Files with The screen configurations? Chance The code strings. Because it is only a setting like The TV setting preset... But on a TV we Can set manually contrast gamma saturation ecc.. It would be interesting To find Files in The Phone that contains The sets of The screen And Try To change......