screen with back light on and off. Indoors and out. This is a first generation Qi on a Lenovo laptop.
note: These are poor phone camera images. The first two are inside with normal lamp light. The second two are full sun (notice the sharp shadows) at my back with a slight angle to get rid of the glare. 1st generation Qi is not matte like Adam. The blue tint is probably from a white balance problem. The true whites on the screen are paper white and the blacks are black with definition. The screen was tuned with Adobe Gamma.
From questions on another forum I will answer some
of them here for you.
The Pixel Qi in LCD back light on mode functions like any other LCD. My color, saturation and sharpness is just like any other LCD at the same size and resolution. In back lite off it functions the same as the LCD with back light on except less color down to gray scale.
You are not getting a sub-par LCD. You are getting a normal LCD with enhanced modes. It is a positive. No negatives. You have not lost anything to gain the other. I can read my screen with a 4 graph array in my office with the back light off from 6' away. I can read for hours in full Florida sunlight with no more eye strain than you would have from reading any other 10" screen. The refresh rate is instantaneous just like any LCD.
thanks for the photos! i didnt know they already had a PQ in a notebook already. from all the images, i'm hoping Adam will look the same. what's the highest resolution the notebook is using btw?
You need no buy it and install it yourself
1024 X 600 at 32 bit
Maker Shed
http://www.makershed.com/ProductDetails.asp?ProductCode=MKPQ01
Bought the Lenovo off Fleabay for couple hundred used. There are only a few laptops it will fit on and function correctly. Several videos on how to do it. Never opened a laptop before and I didn't break anything. Use it in my work in Florida every day. No longer have to run for shade to add notes or read something. Can sit by the pool and read RSS for hours. Add the extra memory to the S10-2 if you want a bunch of window open at once, otherwise base memory is fine. WIFI is very good for G.
Some nomenclature so at least you can sound like
you know what your are talking about.
Pixel Qi has three modes.
transmissive mode = back light on like regular laptop LCD
transflective mode = Back light turned down and good ambient light (Some say this is the best mode for reading.)
reflective = back light off. Ambient light used 100% to read the screen.
I use transflective mode when reading outside as it gives me a bit of color in the photos.
Read this site and blog and you will know what you are talking about.
http://www.pixelqi.com/
Matte for the Adam?
I thought there was not yet confirmation about the matte screen because of difficulties with green pixels, especially when the extra gap of the touch screen comes into play.
Also note that the Pixel Qi to be used in the adam is meant to be considerably better as it is the third? generation of Pixel Qi. (Maybe second by I seem to remember reading third?).
Even thougth it is very tempting to pre-order, It surely has to be worth the wait to see user reviews before going ahead and buying? I know I want one yestreday, but I am forcing myself to wait... Painful as that is!
I believe he said matte, just not how much matte
In blog when talking about matte screen he says"
"We told you how much we love Matt (that’s one reason why all the monitors here are from Dell). We have invested a lot of time in figuring out the right surface values which gives the perfect combination of 2 worlds (no reflection property of matt and scratch resistant property of glossy surface).
"It took us really long and was really harder for the manufacturers to make what we wanted. We can’t compromise on few things and this was one of them.
"(You need to open it in another tab and see it full screen). If you can see (I hope you do), you will see small green fringes and speckles. Matt surfaces don’t work well with Green colors and creates diffusion around green pixels. You Dell screens look good for two reason, one they have done good job and two, they don’t have to deal with the gap of touch screen in LCD monitors. Gaps add more refractions. Please see the next illustrations for more understanding.
"We have done a good work when it comes to both of these issues and you can observe the same in the final product".
I believe he has said the screen will be matte. It is a question of "how much matte" that is open to interpretation.
Generation
"Also note that the Pixel Qi to be used in the adam is meant to be considerably better as it is the third? generation of Pixel Qi. (Maybe second by I seem to remember reading third?)."
There really is no way at this point to figure out what generation the screens are. All she has said is that Adam will have "their latest and greatest." I have the Makershed "do it yourself" version which seems to have a wider viewing angle than what they were calling their 1st generation at CES 2010. Was this first gen. production, off the work bench, out the door" Who knows.
On one of the Qi videos they have one version they are showing off they called their "next generation" and then they go inside and get another newer version to show off. This was back in the summer.
Adam could be getting 10th generation for all we know, but at least we will be getting her "latest and greatest". I am sure we will be getting the screen they will be showing off at CES. Would not make sense for them to dis their best customer by showing off a better screen than was coming out on a product that was just starting to be shipped.
I see both of these companies going far, Notion Ink and Pixel. Eventually you may even see Pixel displays on smartphones.
TS
Related
I'm not familiar with all the stuff led's consist of, and wonder if a darker theme/background for the n1 would mean longer battery life ?
Let s say the brightness is set to 100% - would the darker background use less battery ?
THanks, and anyone that might want to ramble about how oled/led/whatever is best, I won't mind reading through it at all. Information, please
I don't have anything to back it up, but I've heard over and over that black takes less power than white. Since each OLED pixel is a light source in itself, if it is off, it isn't taking power to give any light. But the bright white pixel next to it would be using more.
absolutely black uses less power. I'm just reading Wikipedia on it and view give an example that a black background with white texts uses 0.7 watts while the same display with white background with black text uses 3 watts. qvga screen was the example used.
not only that but oled technology is able to create displays that are paper thin, if you look around there is a prototype sony oled that is made on some sort of plastic that is able to bend and roll up like paper. Pretty incredible stuff but the tech is so expensive right now that its not really practical to put the tech in use on a screen that is more then the size of a cell phone. Sony has a Oled Tv out thats only around 11 inches and costs $2500! But it does have one of the best display quality that you can buy today. Unless you don't count Samsung's recently announced Super AMOLED
Kutthoat5150 said:
not only that but oled technology is able to create displays that are paper thin, if you look around there is a prototype sony oled that is made on some sort of plastic that is able to bend and roll up like paper. Pretty incredible stuff but the tech is so expensive right now that its not really practical to put the tech in use on a screen that is more then the size of a cell phone. Sony has a Oled Tv out thats only around 11 inches and costs $2500! But it does have one of the best display quality that you can buy today.
Click to expand...
Click to collapse
Interesting, paper thin? A display, and plastic OLEDs as well? Interesting..
Howdy folks. Since people here always know what's around the corner, has anyone heard about phones with a Mirasol screen? I read about this tech several years ago, and haven't really heard anything since. As I understand it, instead of depending on light to pass through a colored filter, it uses tiny reflective pits to generate color. The depth of the pit affects which wavelengths of light are able to reflect back out. If what I've read is true, not only would this mean that bright light will no longer wash out your phone's display (quite the opposite), but it would have battery consumption comparable to that of the E-Ink displays of Kindle and Nook (and other E-readers) since it only applies power to change the state of the pixels, no sustainment power necessary. Here's a link to the wikipedia entry on the subject.
http://en.wikipedia.org/wiki/Interferometric_modulator_display
I'm no expert but you probably need to wait for the economies of scale to kick in and lower the cost of these things. Also the article said that production just came online in Jan, it also said that for now they only show black and one additional color.
Hello.
I wanted to share my experience... I love my Kindle Fire. It's an awesome little device. Even not taking into account the ridiculous price ^^
I love gaming in it, browsing, and fiddling with customization stuff in ADW Launcher EX.
But I noticed shortly after I received it that the screen was kind of funky. After displaying a still graphic or text for a couple of minutes, the image becomes "burned" in the screen around all borders, about half an inch into the screen. It is most noticeable by switching to a flat neutral color... The easiest way to check it is by bringing down the notifications overlay, which has a gray background. At first I thought that the notifications tray was kind of transparent, but that is not the case.
My 2 brothers also bought Kindle Fires, so I compared mine to theirs and found out that my screen is completely different. Colors are more greenish, and it seems brighter when looking at it perpendicularly. However, when looking at it at an angle, it loses a lot of brightness, which the other screens did not.
So I contacted Amazon tech support, and after doing just a cold reboot, they sent me a replacement kindle fire (which i'm currently waiting on)...
This leads me to think that this is a known issue. Maybe Amazon has 2 different screen suppliers, and one of them is of crappy quality. I recommend checking your screen against another KF, or at least checking to see if it has the "burned image" problem... You can do so by displaying a webpage, preferably white bg and black text, for 5 minutes still. Then bring down the notifications tray. If you see the "ghost" of the letters and graphics, then your screen is like mine and you should ask amazon for a replacement device.
Hope this helps someone!
Cheers.
haha damn... I was so sure there were no other threads about this. Not even google brought up any other posts talking about this. Still, more info on the topic is better, right? ^^ Sorry!
jedivulcan said:
Absolutely. No worries. I couldn't find but maybe one or two posts on it either using Google.
I threw our the other forum link because there's a few pictures and a link to Amazon'sessage boards with customers that have similar issues.
I went "OOO" when I saw your post though because the observations about the Kindle were similar to mine.
It's either multiple component suppliers or really bad QC or a combination of the two. I returned both of my Kindles and might wait it out for something else.
I hate LCD display raffles. The odds of getting two that are completely different ones seem pretty high or it's an extreme coincidence.
Click to expand...
Click to collapse
Yeah, it's really annoying to get a bad LCD... It has happened to me with Dell laptops, but never with mobile devices.
My particular issues with the Kindle don't seem to be exactly the same as other people, since they only get dead pixels, light bleed or weird color temps. None (that I know of) have noticed image ghosting or poor viewing angles on their devices. Maybe this thread can work as a warning to check for these particular signs so you can see if you got an inferior LCD panel in your kindle.
I really like this device, kudos to Amazon for introducing a whole new price point for android tablets... But they should continue to acknowledge and take responsibility for poor quality items. And people should be aware of the issue so they can ask for a refund or replacement unit.
However, when looking at it at an angle, it loses a lot of brightness, which the other screens did not.
Click to expand...
Click to collapse
Definitively sounds like a bad screen. IPS display panels (which kindles are supposed to have), should have a near 180 degree viewing angle without loss of image. That sounds more like what you get with a TN panel (what cheaper displays [sub 300-400 dollars in terms of desktop displays] typically use). Either the IPS display was damaged somehow in the process of making it or they stuck the wrong kind of panel on it.
IPS displays are also exceptionally bright. If any of you are experience "too much" light bleed all the time then that is generally not a defect. Read on:
Light bleed around the edges is typical for IPS displays (which nearly all tablets, touchscreen phones (minus the OLED ones like samsung's) and high end desktop/laptop displays are). The solution is basically turn down the brightness (because IPS monitors are also exceptionally bright). I have 3 IPS desktop monitors (HP2475 and 2 HP2335) and 2 IPS tablets (HP touchpads) and one phone and the brightness on all are around 30-35%.
Even ipads have the issue, because they too, are IPS displays (and so are iphones). Just random information..."retina" is just a fancy marketing buzzword for "high resolution IPS display."
Light bleed tends to obviously be more noticeable on dark backgrounds such as black. If it's really noticeable, your display is most likely too bright.
http://en.wikipedia.org/wiki/IPS_panel
http://en.wikipedia.org/wiki/Liquid_crystal_display#In-plane_switching_.28IPS.29
The kindle fire uses LG displays, (same supplier to many HP products, Apple, HTC and others). That should be a good thing, but defects do happen. Just another random fact...there's only a handful of IPS display panel manufacturers (LG, Sony/Samsung [a partnership], a few chinese outfits and maybe another Japanese one). Reason being the cost to make them mostly. Most monitors are just displays from those companies re-branded and wrapped in a monitor shell.
The single most expensive subsystem in the Kindle Fire is the display and touch screen, at a combined cost of $87.00, or 46.9 percent of the BOM. Amazon sources the display from two companies: LG Display and E Ink Holdings. The display uses E Ink’s FFS technology, which LG Display has licensed.
Click to expand...
Click to collapse
Hi guys!
First off I wanna say I love my Note!! I have the Korea version as well.
Anyway, I still have my Galaxy S I which I ended the contract to get a Note.
I have to say as far as the "blacks" are concerned, the Galaxy S I wins hands down and also the text/color is sharper and even brighter than the Note.
I tried to take side by side photos but this was the best I could do to show the difference. Both phones are at max. brightness
http://imageshack.us/photo/my-images/819/img0005ib.jpg/
http://imageshack.us/photo/my-images/31/img0006pq.jpg/
The pics do not do justice. In person there is a real difference. Even the capacitive lights on the bottom are brighter and whiter.
Not a big deal though when my Gaalaxy S isnt being compared to the Note. Just bothers me a bit personally
Thanks!!
Its becoz of the resolution . Galaxy Has 480 x 800 and in Note 1280 x 800, their is a lot of difference in these too models. anyway Supercurio is working on color issues on Note. lets Hope for better result.
Display issue Thread by Supercurio.. here is the link .
http://forum.xda-developers.com/showthread.php?t=1430847
After installing Screen Adjuster free from the market ..I just upped the red a fraction [+3] to get rid of the slightest green tinge to my screen.
Then installed Voodoo Screen from the Market and set it to Native Mode... this has fixed 90% of the banding issue on my Note.
Now the screen is beautiful and can hardly fault it.
cybermessiah said:
After installing Screen Adjuster free from the market ..I just upped the red a fraction [+3] to get rid of the slightest green tinge to my screen.
Then installed Voodoo Screen from the Market and set it to Native Mode... this has fixed 90% of the banding issue on my Note.
Now the screen is beautiful and can hardly fault it.
Click to expand...
Click to collapse
Was the app called "Voodoo Screen Tuning R/D" ?
I downloaded it from market but get a message saying it doesnt support my model.
I have a Korean Note
What did u turn red upto perhaps a screen shot of your settings if u could pls
Sent from my GT-N7000 using xda premium
Aaaargh it requires root. Im n00b and dont want to do that i n the first month :/
Sent from my GT-N7000 using XDA App
You can turn it on and off
Sent from my GT-N7000 using xda premium
markmessier8888 said:
Hi guys!
First off I wanna say I love my Note!! I have the Korea version as well.
Anyway, I still have my Galaxy S I which I ended the contract to get a Note.
I have to say as far as the "blacks" are concerned, the Galaxy S I wins hands down and also the text/color is sharper and even brighter than the Note.
I tried to take side by side photos but this was the best I could do to show the difference. Both phones are at max. brightness
http://imageshack.us/photo/my-images/819/img0005ib.jpg/
http://imageshack.us/photo/my-images/31/img0006pq.jpg/
The pics do not do justice. In person there is a real difference. Even the capacitive lights on the bottom are brighter and whiter.
Not a big deal though when my Gaalaxy S isnt being compared to the Note. Just bothers me a bit personally
Thanks!!
Click to expand...
Click to collapse
Coming from a galaxy s with a perfect screen i have to agree that the black levels on the note is not as good and yes picture quality on the first generation screen is better even if its just plain pentile and non hd resolution.
People who started with the galaxy note are easily blown away but those who started with the first gen need more to be pleased. I also started a thread about this before and got the same results on the black levels.. im hoping that hd samoled plus can redeem the samoled family.
I think it is an amazing screen!!! I love it, about it being less bright, god I think the note is too bright. I never have it on full brightness unless its really bright sunshine, and in the dark I wish it would go darker, but it won't.
And the black levels!!!(I'm sick of hearing about this in the this forum) some people are so anal about this, I mean I can only just about tell that the screen is on, on a full black screen when I'm in a pitch black room, which I did to test the blacks. So 99% of the time you can't tell, and even in a pitch black room as soon as theres a pixel of light on the screen your eyes adjust and the blacks look black again. Secondly how many of you that are bothered about this, actually sit in the cinema or watch tv or when on the computer, say oh my good the blacks aren't quiet black. I can pretty much guarantee that all the screens in your life aren't LED so why bother so much about it on your phone?
I also love the screen. No disappointment at all!
Would you rather have 480x800!?
This is brand new technology! It pushes the limits of what can be done at consumer price.
And people are complaining!? WTF!
edit: I owned a SGS1, but I like the Note's screen way more. Much sharper.
Although I must say I'm not experiencing the issues I read about on the forum.
DaanJordaan said:
Would you rather have 480x800!?
This is brand new technology! It pushes the limits of what can be done at consumer price.
And people are complaining!? WTF!
Although I must say I'm not experiencing the issues I read about on the forum.
Click to expand...
Click to collapse
Are you joking???
I worked a few years in an industrial R&D department and designed new products, but we NEVER would have dared to release a product with such massive quality fluctuations (problems) onto a mass market! Especially when the screen is THE major unique selling argument!
Fine that YOUR screen is fine for YOU, but sorry, your arguments are pure ignorance! You do NOT have this issues, fine, then why judge about their seriousness??
TML1504 said:
Are you joking???
I worked a few years in an industrial R&D department and designed new products, but we NEVER would have dared to release a product with such massive quality fluctuations (problems) onto a mass market! Especially when the screen is THE major unique selling argument!
Fine that YOUR screen is fine for YOU, but sorry, your arguments are pure ignorance! You do NOT have this issues, fine, then why judge about their seriousness??
Click to expand...
Click to collapse
Jeez, dont buy a samsung nexus then because that thing is a mess. Signal fluctuates so badly that its kinda funny. Fake screen size (the android buttons are actually on the bottom of the screen, reducing the screen size to the razr. The sound is a joke, the battery useless. Match that with no sd card slot no hdmi and the headphone jack at the bottom of the phone and youve got a 600$ flop.
I bought it for my 12 year old and even he doesnt want it. He wants me to bring it back and get a razr....
BTW, i have a bad s pen and the trademark samsung pink hue in the middle of my camera but asude from that, i love my note. When i saw it in youtube early 2011 i knew it would become my daily phone web surfer.
I wish for the same phone with S amoled PLUS, volume and sleep buttons not across from each ither, no pink in camera, mute button (like iphone) and the sane type of notification light as on the samsung nexus, micro hdmi out and quad core
try the free wallpaper called "no wallpaper" by simplicity apps. The blacks that you see with that wallpaper are amazing and it is free. i often use my phone at night when my child is sleeping, so lights are off and dark and see pitch black screen.
have 2 htc desires at home with amoled screens and the note screen is way better than that. have seen SGS and SGS2 screens and the note is definetely much better than that.
also try the wallpaper (free and paid versions) of KF Flames or KF Flames Donation by kittehface software. the blacks on that are also awesome with equally awesome flame effects. prefer the stock setting than variations possible with paid version but bought paid version just to support developer as liked free version.
the screen on even the sgs2 is no comparison to the one on the note. is your phone stock version or is having different roms affecting the display?
ICS should sort out most issues as its 32bit colour .... (or it could be 24 bit not 100 percent) ,,,
no wallpaper works a treat ... also lowering red to 3
still some apps which are lower density look like they have lines on .. but if you take screen shot they are still there when looking on pc so its the app not the phone
this phone rocks ... never ever going back to the half eaten apple ....
TML1504 said:
Are you joking???
I worked a few years in an industrial R&D department and designed new products, but we NEVER would have dared to release a product with such massive quality fluctuations (problems) onto a mass market! Especially when the screen is THE major unique selling argument!
Fine that YOUR screen is fine for YOU, but sorry, your arguments are pure ignorance! You do NOT have this issues, fine, then why judge about their seriousness??
Click to expand...
Click to collapse
Where in my post am I "judging" about "their" seriousness?
If you find the screen their "major unique selling argument", why did you buy it before doing research on the screen?
If you are so worked up about the screen, why don't you get a replacement or trade it for a different phone?
Why do you point your frustration at someone who bought a phone he likes?
Because you bought a phone that you do not like?
Really, if you are so pissed off that you have to enter a forum discussion this angry. You should return the phone.
If you worked in a research and design department you must be a smart guy. You know getting angry won't get us anywhere.
markmessier8888 said:
Hi guys!
First off I wanna say I love my Note!! I have the Korea version as well.
Anyway, I still have my Galaxy S I which I ended the contract to get a Note.
I have to say as far as the "blacks" are concerned, the Galaxy S I wins hands down and also the text/color is sharper and even brighter than the Note.
I tried to take side by side photos but this was the best I could do to show the difference. Both phones are at max. brightness
http://imageshack.us/photo/my-images/819/img0005ib.jpg/
http://imageshack.us/photo/my-images/31/img0006pq.jpg/
The pics do not do justice. In person there is a real difference. Even the capacitive lights on the bottom are brighter and whiter.
Not a big deal though when my Gaalaxy S isnt being compared to the Note. Just bothers me a bit personally
Thanks!!
Click to expand...
Click to collapse
The blacks on my old S2 is way deeper than the one in the Note.
Disappointing for sure.
But i'll take sharper screen over deeper blacks any day.
Well I was the proud owner of two notes this week, first one had a screen which used to tint between pink and green, so I got Amazon to send a replacement, which came today.
Alas this one isn't rendering the blacks properly and makes Black & White photos and videos look awful, pity as I'm a photographer and wanted to show client photos on the note (First note rendered Blacks great, just the white balance kept going off every odd second or so).
So two notes being returned, not taking the risk again.
Shingle said:
Well I was the proud owner of two notes this week, first one had a screen which used to tint between pink and green, so I got Amazon to send a replacement, which came today.
Alas this one isn't rendering the blacks properly and makes Black & White photos and videos look awful, pity as I'm a photographer and wanted to show client photos on the note (First note rendered Blacks great, just the white balance kept going off every odd second or so).
So two notes being returned, not taking the risk again.
Click to expand...
Click to collapse
3rd times tge charm! Grab it while its the international version! The home button is brilliant.i dont at&ts stink on it.
cybermessiah said:
After installing Screen Adjuster free from the market ..I just upped the red a fraction [+3] to get rid of the slightest green tinge to my screen.
Click to expand...
Click to collapse
I adjusted the red to +1 on my Note, and it's worked perfect
Much clearer now, thanks for that tip - I'd never heard of that app before.
Livewings said:
The blacks on my old S2 is way deeper than the one in the Note.
Disappointing for sure.
But i'll take sharper screen over deeper blacks any day.
Click to expand...
Click to collapse
I'm not sure how the black levels are perceivably different from one OLED screen to another, whether it's AMOLED, SAMOLED, SAMOLED Plus, or HD SAMOLED.
I mean, think about it...
All OLED displays are actively lit, which means that each pixel is its own source of light as opposed to being, essentially, active colour filters for a backlight, like on an LCD.
Let's go ahead an use 24-bit colour for the following example:
Basically, each pixel is able to register 256 levels of intensity per colour, which is represented by 8 bits per colour. And since you have three colours (Red, Green, and Blue), that's 8 bits times 3, hence 24-bit.
In the case of an LCD, where each pixel is essentially a filter, blocking or allowing backlight through, a bit value of 0 for any particular colour would mean fully blocking light, and a bit value of 255 would mean fully allowing as much light through as possible.
However, since the backlight in an LCD is always on, regardless of the image, the front panel isn't always able to completely block all the light, even on a completely black image. That's why you're still able to see a little bit of bleed-through, even on the best LCD's.
With any kind of OLED display technology, this is not the case however. On an OLED display, each pixel is essentially a microscopic cluster of light emitting diodes, and since each pixel produces its own light, there is no backlight whatsoever. Thus, on an OLED display, a 255 bit value for a given colour means full intensity, and a bit value of 0 simply means "off."
Q.E.D. on any kind of OLED display, true black is truly black in the same sense that when a light bulb is turned off, it's completely off.
So, if you're perceiving a difference in the black levels between respective OLED devices, it could be simply that you're not viewing a truly black image. The image might contain pixel bit values close to 0, but not actually 0.
Hello,
I have received Google Nexus 10 and it seems like the seal was broken, which suggests that somebody else has already used it (or at least unpacked).
I guess that the only known "big issue" is the light bleed. Could somebody tell me, step by step, how to determine it? (e.g. how to load all black screen? What brightness should I use to check it?). I am trying to judge whether to keep the tablet or not.
Thank you for help,
Theriel
Try using an app like this LCD test:
https://play.google.com/store/apps/...DEsImRlLmxhcHBlLnRpbS5hbmRyb2lkLmxjZHRlc3QiXQ..
go to the pure black and then play around with the brightness (set it to max).
You'll almost certainly going to see some but this should help you decide if it's a deal breaker for you.
the darker the room the better aswell! if you are in a pitch dark room and only see little light bleed at max brightness then have a little smile to yourself and enjoy the nexus!
theriel said:
Hello,
I have received Google Nexus 10 and it seems like the seal was broken, which suggests that somebody else has already used it (or at least unpacked).
I guess that the only known "big issue" is the light bleed. Could somebody tell me, step by step, how to determine it? (e.g. how to load all black screen? What brightness should I use to check it?). I am trying to judge whether to keep the tablet or not.
Thank you for help,
Theriel
Click to expand...
Click to collapse
Check out "Backlight Bleed Test"
https://play.google.com/store/apps/details?id=com.joeleveque.backlightbleedtest
Sent from my Nexus 10 using Tapatalk HD
So what is light bleed that matters?
I know the OP's question is on testing for bleed, but want to respond to help those wondering whether what they're seeing in their tests is normal or a defect that a replacement unit might solve . . .
Starting with a couple of suggested definitions:
'Light bleed' is a significant unevenness in screen lighting/brightness that's irritating in normal use – like scalloping along the edges, or being a lot brighter or darker on one side. Separately, let's call it 'black glow' when what's intended to be jet black on a screen doesn't appear completely black.
If you search the Web for 'light bleed' and the name of any major tablet, you'll find plenty of references to this. When examining your tablet, for context do the same with your laptop, LCD monitor, and LCD TV, for all are subject to the same concerns. No screen technology is perfect. Lighting on all LCD screens varies somewhat depending on the angle you look at it, and some level of 'black glow' is normal too.
Looking at your all-black screen in a dark room with the brightness turned up can be a useful test to verify problems if you find concerns that affect normal usage. This is a worst-case-scenario video test, and when you test your other LCD-screen devices this way, you are bound to see 'black glow'.
A lot of cell phones (mostly Samsung) have AMOLED screens that don't need screen backlighting & thus don't have 'black glow' – each pixel is a light and blacks can truly be black. But these screens are limited to smaller devices – the largest are two lower-resolution 7.7" units; you can't buy a 10" AMOLED tablet. With LCD's, note that the larger the screen & the higher the resolution, the brighter the backlight (really, it's on the edge) needs to be.
There are definitely defective units out there, and some that aren't as even as others. Hopefully this adds context to the discussion and will help folks new to the issue decide whether their unit is bad enough to be worth exchanging . . .
brocco99 said:
I know the OP's question is on testing for bleed, but want to respond to help those wondering whether what they're seeing in their tests is normal or a defect that a replacement unit might solve . . .
Starting with a couple of suggested definitions:
'Light bleed' is a significant unevenness in screen lighting/brightness that's irritating in normal use – like scalloping along the edges, or being a lot brighter or darker on one side. Separately, let's call it 'black glow' when what's intended to be jet black on a screen doesn't appear completely black.
If you search the Web for 'light bleed' and the name of any major tablet, you'll find plenty of references to this. When examining your tablet, for context do the same with your laptop, LCD monitor, and LCD TV, for all are subject to the same concerns. No screen technology is perfect. Lighting on all LCD screens varies somewhat depending on the angle you look at it, and some level of 'black glow' is normal too.
Looking at your all-black screen in a dark room with the brightness turned up can be a useful test to verify problems if you find concerns that affect normal usage. This is a worst-case-scenario video test, and when you test your other LCD-screen devices this way, you are bound to see 'black glow'.
A lot of cell phones (mostly Samsung) have AMOLED screens that don't need screen backlighting & thus don't have 'black glow' – each pixel is a light and blacks can truly be black. But these screens are limited to smaller devices – the largest are two lower-resolution 7.7" units; you can't buy a 10" AMOLED tablet. With LCD's, note that the larger the screen & the higher the resolution, the brighter the backlight (really, it's on the edge) needs to be.
There are definitely defective units out there, and some that aren't as even as others. Hopefully this adds context to the discussion and will help folks new to the issue decide whether their unit is bad enough to be worth exchanging . . .
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Mine is faintly noticeable all the time with auto brightness on. I asked for an RMA and it was 2-3 times as bad. I think I will keep this one. As of now looking at it really bothers me, but I know in a few months once this device has some wear it won't matter to me. However I am still debating on attempting to receive a refund and possibly buying it in the stores in a few months. Hmmm lol.
Thank you all for your informative responses.
I am attaching the pictures of my case. I guess I will have to return it - although you cannot see in the light and with non-black background, it is pretty annoying when the background is black and the ambient light is a bit dimmer...
What would you do in my case ? How does this case compare to your cases?
Thank you,
Theriel
my orignal device has servere light bleed on the left corner and my replacement device has servere light bleed on the right corner... 3rd one is on the way, please Google, give me a acceptable screen before the world ends!!
I do not think there is any point of returning it. It seems liek light bleed is inherent in the design of these tablets. I have two right in front of me, the second one has even worse light bleed. I shall be keeping the first one. Does any one know if they will charge my card for the second one. It seems like they charged me card, then a days before I got a second nexus 10, they removed the charged.
I was expecting a courier to pick up my old nexus 10. But no one has. Any one else in the same situation with 2 nexus 10s?
sharp910sh said:
I do not think there is any point of returning it. It seems liek light bleed is inherent in the design of these tablets. I have two right in front of me, the second one has even worse light bleed. I shall be keeping the first one. Does any one know if they will charge my card for the second one. It seems like they charged me card, then a days before I got a second nexus 10, they removed the charged.
I was expecting a courier to pick up my old nexus 10. But no one has. Any one else in the same situation with 2 nexus 10s?
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You know its bad when its a best of the worst scenario. Lol.
sharp910sh said:
I do not think there is any point of returning it. It seems liek light bleed is inherent in the design of these tablets. I have two right in front of me, the second one has even worse light bleed. I shall be keeping the first one. Does any one know if they will charge my card for the second one. It seems like they charged me card, then a days before I got a second nexus 10, they removed the charged.
I was expecting a courier to pick up my old nexus 10. But no one has. Any one else in the same situation with 2 nexus 10s?
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Click to collapse
They will place another hold of the price of the device until the rma'd unit has returned to them. It would take another 7 days until the hold is released from what was explained to me. So at the moment for me they have 1k of my money on hold because the original is in route to them now and I had just ordered the replacement for the replacement!
You will have to setup a pickup or go to the nearest UPS facility to return your defective unit.
Sent from my Nexus 10 using Tapatalk HD
jjdevega said:
They will place another hold of the price of the device until the rma'd unit has returned to them. It would take another 7 days until the hold is released from what was explained to me. So at the moment for me they have 1k of my money on hold because the original is in route to them now and I had just ordered the replacement for the replacement!
You will have to setup a pickup or go to the nearest UPS facility to return your defective unit.
Sent from my Nexus 10 using Tapatalk HD
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Yes, I was thinking that. But they do not have any of my money on hold. They did but then it was returned back?! Keep checking my account. I thought they were going to organise the collection of my old devise. Seems like i shall give them a ring. They may charge my card again!
So... what do you think about my case (see photos in the previous post)? How does it compare to the "average Nexus 10" you have/have seen? Is it "ok" or "one of the worst cases" or... ?
I am not sure if it is not worth waiting 2-3 weeks for a new tablet, as opposed to holding onto a defective one for a few years...
theriel said:
So... what do you think about my case (see photos in the previous post)? How does it compare to the "average Nexus 10" you have/have seen? Is it "ok" or "one of the worst cases" or... ?
I am not sure if it is not worth waiting 2-3 weeks for a new tablet, as opposed to holding onto a defective one for a few years...
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Your one looks bad!
@OP: It seems the question should be whether your screen looks great to you in normal use or not. If lighting evenness irritates under normal use, *then* the dark room/full-black screen test can confirm what you're seeing. Is only time you see a funny pattern when testing the thing this way?
We can't really know if a picture taken with a typical camera in a dark room really reflects how you see the image; most cameras normally crank the gain up 'till there's some kind of funny colored image. My screen is a bit brighter in the lower right when running this test -- which I see as nothing more than an interesting detail about how the backlighting works, it's completely irrelevant to me in normal use. If your picture really does reflect what you experience, and it affects normal usage . . . yep, it's worse than mine.
The easiest way you can get context for what you're seeing is probably to run the same test on any laptop or tablet you can get ahold of -- makes sense that you don't want your tablet to come up short when compared to what you see first-hand on other LCD screens. That's probably a lot better way to decide!