OLED - darker vs lighter - Nexus One General

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..

Related

Here are some shots of my Pixel Qi

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

iphone 4 screen displays better whites

Today I showed the screen of my galaxy s II to my iphone4 owning friend. We both loaded up bbc home page, and the white background on his phone looked much better than on my phone.
On my phone the white background looked cream in colour, where as his displayed as pure white.
Will this be able to be fixed with vodoo colour?
It can be helped with Voodoo color, but it can never look like an LCD based display since SAMOLED screens don't have the LED backlight in the back. And also, an iPhone 4's display has already been proven to be a bit blue tinted which makes whites look brighter when they're actually a slight shade of blue. I've spent a lot of time calibrating my Nexus S screen with Voodoo color and I can safely say the result is a more pleasant shade of white than my friend's iPhone 4. Also with Voodoo color I can boost the brightness higher than what the stock specifications permit so it's even a brighter white than the iPhone 4's if I want it to be, but it consumes a LOT of power.
Dannyboyni said:
Today I showed the screen of my galaxy s II to my iphone4 owning friend. We both loaded up bbc home page, and the white background on his phone looked much better than on my phone.
On my phone the white background looked cream in colour, where as his displayed as pure white.
Will this be able to be fixed with vodoo colour?
Click to expand...
Click to collapse
Cream? Really? http://amishlandofct.com/resources/color+cream.jpg
At any rate - yes, voodoo colour can change the colour temperature.
Dannyboyni said:
Today I showed the screen of my galaxy s II to my iphone4 owning friend. We both loaded up bbc home page, and the white background on his phone looked much better than on my phone.
On my phone the white background looked cream in colour, where as his displayed as pure white.
Will this be able to be fixed with vodoo colour?
Click to expand...
Click to collapse
the nature of LCD and OLED makes the colors differ here in America. It also makes the colours differ in England and most of its former colonies.
You can try setting the separate brightness setting in the browser settings to 100% (it is separate from general brightness setting in the phone settings).
I bet it would still have a different hue if you look at them side by side.
You can also try taking a friend with an iP4 that is a year old to a store that sells iP4 now, and compare how they look - you will probably see some difference there too, side by side.
He was saying to me, "oh your screen tech hasn't evolved yet, you cant display proper white", haha, "my text is so much sharper than yours".
It was true about the text, my heart sank when I compared BBC homepage in portrait mode. His text looked MUCH sharper than mines. But then he has got a much higher resolution.
I really did feel humiliated, I just want nice pure white like the iphone4 has. I know I don't have a backlight.
RyanZA said:
Cream? Really? http://amishlandofct.com/resources/color+cream.jpg
At any rate - yes, voodoo colour can change the colour temperature.
Click to expand...
Click to collapse
that is a freaking picture of some fabric, right??? because I got scared thinking my laptop LCD is showing banding on cream color.
Haha... I guess the only difference between boys and men are the price of their toys huh?
If you want to humiliate him, ask him to show you a black image. Then laugh at how much light leakage he has. Then play a high quality youtube clip like a movie trailer with some action scenes, then laugh at how slow his pixel response is (ghosting). Also while you're trying to play a high quality youtube clip... remind him that he needs to be on wifi in order to do it because he only gets low quality over 3G =)
Trust me I'd take the SAMOLED over an LCD display any day. Same reason I have a plasma TV and not an LCD/LED one.
Dannyboyni said:
He was saying to me, "oh your screen tech hasn't evolved yet, you cant display proper white", haha, "my text is so much sharper than yours".
It was true about the text, my heart sank when I compared BBC homepage in portrait mode. His text looked MUCH sharper than mines. But then he has got a much higher resolution.
I really did feel humiliated, I just want nice pure white like the iphone4 has. I know I don't have a backlight.
Click to expand...
Click to collapse
dinan said:
Haha... I guess the only difference between boys and men are the price of their toys huh?
If you want to humiliate him, ask him to show you a black image. Then laugh at how much light leakage he has. Then play a high quality youtube clip like a movie trailer with some action scenes, then laugh at how slow his pixel response is (ghosting). Also while you're trying to play a high quality youtube clip... remind him that he needs to be on wifi in order to do it because he only gets low quality over 3G =)
Trust me I'd take the SAMOLED over an LCD display any day. Same reason I have a plasma TV and not an LCD/LED one.
Click to expand...
Click to collapse
What, because you prefer an inferior picture quality? There is a reason the big manufacturers are phasing out plasma.
dinan said:
Haha... I guess the only difference between boys and men are the price of their toys huh?
If you want to humiliate him, ask him to show you a black image. Then laugh at how much light leakage he has. Then play a high quality youtube clip like a movie trailer with some action scenes, then laugh at how slow his pixel response is (ghosting). Also while you're trying to play a high quality youtube clip... remind him that he needs to be on wifi in order to do it because he only gets low quality over 3G =)
Trust me I'd take the SAMOLED over an LCD display any day. Same reason I have a plasma TV and not an LCD/LED one.
Click to expand...
Click to collapse
I second this.
Why didn't you test the black on both screens too?
Iphone4 does have a higher resolution, so it's silly to go comparing that, since it's a known fact.
dinan said:
Trust me I'd take the SAMOLED over an LCD display any day. Same reason I have a plasma TV and not an LCD/LED one.
Click to expand...
Click to collapse
I would go one step further: comparing SGS2 screen to iP4 screen is like sitting on a coach 15 feet from TV and comparing a fine 480P 37 inch plasma TV with a "finer" 4K 32 inch LCD TV
Pagnell said:
What, because you prefer an inferior picture quality? There is a reason the big manufacturers are phasing out plasma.
Click to expand...
Click to collapse
They are phasing out plasmas because they are more expensive, eat more power , are harder to make, and can't compete with LCDs in price.
Real video buffs still prefer Plasma for its true blacks and great refresh rates.
I'm not gonna let this get into a TV debate but it's well known videophiles and avid cinema/sports watchers will always choose a plasma TV over an LCD because of the purer blacks and insanely faster pixel response (no ghosting like an LCD/LED). The mere fact that LCD/LED TVs even have to QUOTE a pixel response time indicates an inferiority.
And this also carries through to phones. If you don't believe me, try it. Pick up any HTC phone and compare it to any Galaxy phone. Go to a black menu with white text... perhaps the settings menu and scroll up and down. You'll notice MASSIVE text ghosting on the HTC LCD screens but none on the SAMOLED screen. Please, don't come back claiming things you haven't tested yourself with no facts to back it up.
Pagnell said:
What, because you prefer an inferior picture quality? There is a reason the big manufacturers are phasing out plasma.
Click to expand...
Click to collapse
kreoXDA said:
They are phasing out plasmas because they are more expensive, eat more power , are harder to make, and can't compete with LCDs in price.
Real video buffs still prefer Plasma for its true blacks and great refresh rates.
Click to expand...
Click to collapse
Real buffs prefer high quality LED panels, plasma simply can't compete with the definition even if fast moving imagery is sometimes better. And I know this as someone who has owned high quality sets of every type.
Plasma's days were numbered as soon as it's monopoly on extra large panels ceased to exist thanks to LCD and then LED technology allowing 42" and above panels to be financially and technically viable with no loss of quality.
Still, we can agree to differ on all that if you wish.
dinan said:
And this also carries through to phones. If you don't believe me, try it. Pick up any HTC phone and compare it to any Galaxy phone. Go to a black menu with white text... perhaps the settings menu and scroll up and down. You'll notice MASSIVE text ghosting on the HTC LCD screens but none on the SAMOLED screen. Please, don't come back claiming things you haven't tested yourself with no facts to back it up.
Click to expand...
Click to collapse
I fail to see where the comparison between SAMOLED and LCD is relevant to a comparison between LCD/LED and plasma.
Oh, and I have tested myself.
What do you mean with "pure white"? To me it sounds like iphone has colder color temperature, that is not better, just different. In fact that would give less natural colors.
Try to change color temperature on your pc monitor to understand what I mean, a warm temperature of 6500K is more creamish than a cold temperature of let's say 9000K.
Pagnell said:
Real buffs prefer high quality LED panels...
Click to expand...
Click to collapse
I hope you do realize LED is just another type of backlight for same LCD screen, and it not always makes that same LCD produce truer blacks, and it does not do a thing to refresh rates.
dinan said:
I'm not gonna let this get into a TV debate ...
Click to expand...
Click to collapse
What he said. I am done.
kreoXDA said:
I hope you do realize LED is just another type of backlight for same LCD screen, and it not always makes that same LCD produce truer blacks, and it does not do a thing to refresh rates.
Click to expand...
Click to collapse
Obviously, I'm well aware of the technicalities of all current TV technology or I wouldn't be entering a debate about it.
Anyway, agree to differ and move on, as said derailing this thread is pointless.
Ask him to play a flash video from the browser And it is true the iphone's display is fairly impressive but I prefer the bright colors, larger size, and better power consumption of the SAMOLED+
Are you aware that the GS2 screen has 2 different brightness settings? It has the normal brightness, but lower down the menu it has a setting 'Auto adjust screen power' This actually dulls whites when there is a lot of white on the screen to reduce power use. If you untick it the screen is a lot more pure white.
Oh and on the subject of TV screens plasmas are getting a boost from 3D. 3D plasmas are much better than LED/LCD because of their reaction times. Much much less ghosting and as a result deeper 3D effect. A full HD plasma is still the best screen there is right now. Much less harsh than an LCD, better blacks, more realistic colours and less intense whites.
Dannyboyni said:
He was saying to me, "oh your screen tech hasn't evolved yet, you cant display proper white", haha, "my text is so much sharper than yours".
It was true about the text, my heart sank when I compared BBC homepage in portrait mode. His text looked MUCH sharper than mines. But then he has got a much higher resolution.
I really did feel humiliated, I just want nice pure white like the iphone4 has. I know I don't have a backlight.
Click to expand...
Click to collapse
Who cares about which screen displaying bbc has better white. This baby has everything, 1080p, bluetooth 3.0, wireless n, hspa+, dual core, android (!), better battery and I think the samoled+ can display colours much better. Also no gay itunes and you do not need to jailbreak your iPhone (which makes the iPhone instable and ****) to just get freedom
Edit: forget about these things
4.3" screen, 9mm thick, 116g, micro sd slot and more.. seriously that phone rapes the iPhone
Dannyboyni said:
He was saying to me, "oh your screen tech hasn't evolved yet, you cant display proper white", haha, "my text is so much sharper than yours".
It was true about the text, my heart sank when I compared BBC homepage in portrait mode. His text looked MUCH sharper than mines. But then he has got a much higher resolution.
I really did feel humiliated, I just want nice pure white like the iphone4 has. I know I don't have a backlight.
Click to expand...
Click to collapse
funny that you fall for that
put his iphone in the sun and say "whats white good for if you can't see anything?"
they're different techs. besides, true white is subjective. then theres like 150 other reasons why the SGS2 is technically better, and why the iphone5 will actually be very similar to the SGS2.
I can confirm this "cream" or, as I would put it, "yellow" tint to the screen and whites in particular. It's not right - I consider it a fault. My old (now current) SGS has the most perfect, even whites I've ever seen on a phone - even beating thr iPhone 4 in my opinion.
The SGSII is horribly bad quality as far as I'm concerned. I see nothing in SAMOLED+ that improved over SAMOLED. It's actually more grainy, too saturated, viewing angles - bizarrely are off, and blurs slightly when scrolling. What the hell is up with Samsung?

The overall Nexus experience

A few of my main issues with this phone are as follows:
-green tint on screen
-somewhat insensitive touch sceen (Evo screen is a lot more responsive and less prone to miss touches)
-very short battery life 5-6 hours of my typical use) My Evo battery lasts twice as long.
-radio issues
-cheap, slippery plastic (prone to scratch and fly out of your hand)
-speaker can in-call volume not very loud. (though it does sound good, imo)
Overall the Nexus does not have that premium feel that a "Google Experience" flagship phone should have IMO. The LG Optimus (free on contract) feels better, and has rubberized case. If LG can do that on a cheap entry level Android phone, why can't (money bags) Google?
Obviously these are just my opinions, but it seems like Google will lose out on sales when their *Flagship* phone feels cheap, but costs $550 off contract! Expecially when it it sitting next to phones which feel a lot more sturdy, do not have green/yellow tinted screens, etc.
I never liked the Epic because it feels cheap and hollow. The Nexus does not feel hollow, but is does feel just as cheap. Hopefully for the next Google phone they will get a better hardware partner!
The biggest thorn in my Nexus S experience still remains the typing, and more specifically the double-letter glitch with the first letter of words. It's ridiculous. I'll get sentences like this, "Hey Bob, hhow is it going ttoday?" Frequently. Then sometimes it'll even repeat the first two letters of a word, for example, like "ththis." This becomes especially obnoxious with two letter words, like "I'm walking toto the park."
It is a known issue, but Google has yet to address this: http://code.google.com/p/android/issues/detail?id=14755
I'm pretty blown away by your post.
I've never owned a phone that feels as nice and classy as my Nexus S. It makes my old Evo feel like a side-show freak compared to my Supermodel Nexus.
My screen looks absolutely spectacular.
My battery life ABSOLUTELY BLOWS AWAY my Evo battery life. I go all day (and sometimes into the next day) on one charge STOCK, whereas I had to undervolt and mod the **** out of my Evo to get maybe 10 hours.
I did find typing easier on my Evo, but I've always attributed it to the larger screen.
matt2053 said:
I'm pretty blown away by your post.
I've never owned a phone that feels as nice and classy as my Nexus S. It makes my old Evo feel like a side-show freak compared to my Supermodel Nexus.
My screen looks absolutely spectacular.
My battery life ABSOLUTELY BLOWS AWAY my Evo battery life. I go all day (and sometimes into the next day) on one charge STOCK, whereas I had to undervolt and mod the **** out of my Evo to get maybe 10 hours.
I did find typing easier on my Evo, but I've always attributed it to the larger screen.
Click to expand...
Click to collapse
I agree with all the points here. I've only had my Nexus 2 days but it's far superior to the Evo. It's faster, smoother, slicker, and has noticeably longer battery life. My only complaints are the lack of a notification light (which, honestly, I've not missed at all) and low external speaker volume.
I noticed the strange green or yellowish tint to the screen as well. I noticed if you turn the brightness all the way up it helps. Or if you're on CM, use a theme that display battery and signal in a color other than green in the status bar.
My one biggest complaint is really how noticeable pixels are on letters and some images. I was looking at some other phones and I found the screens to look a little more crisp. (Is this attributed to a higher resolution or PPI?)
The next point that bugs me is the body. Yes, it's gorgeous, yes it's light and easy to handle... but it -does- scratch and ding easily.
In terms of differences in screen colors (tints - some are green, some beige, etc), battery life, etc., these things go to show the inconsistencies in this cheap Samsung hardware.
I know it is easy to pick up a new phone and feel like wow, this thing is awesome. But once I saw all the issues with this Nexus, and went back to the Evo...while heavier, the Evo feels much better, and is a much better experience overall. From typing, to sound quality to screen sensitivity, scratch resistance, LEDs, larger screen, etc. The only thing I really like more on the Nexus is the camera - while lower resolution is has less noise, and the edges of the lens are sharper than the Evo's.
While I do not care about 3D images, I am now looking forward to the Evo 3D, which is thankfully narrower than the Evo 4g.
Anyway, to each his own. I am not trying to convince anyone to agree with me. Just stating where I stand.
gmap516 said:
I noticed the strange green or yellowish tint to the screen as well. I noticed if you turn the brightness all the way up it helps. Or if you're on CM, use a theme that display battery and signal in a color other than green in the status bar.
My one biggest complaint is really how noticeable pixels are on letters and some images. I was looking at some other phones and I found the screens to look a little more crisp. (Is this attributed to a higher resolution or PPI?)
The next point that bugs me is the body. Yes, it's gorgeous, yes it's light and easy to handle... but it -does- scratch and ding easily.
Click to expand...
Click to collapse
It's because of the pixel matrix. AMOLED is a fundamentally different technology than LCD - LCD panels push a white backlight through a grid of color-changing pixels whereas AMOLED basically consists of a grid of LEDs that emit their own light. It's a very new technology and obviously it has a bit of room to mature.
gmap516 said:
I noticed the strange green or yellowish tint to the screen as well. I noticed if you turn the brightness all the way up it helps. Or if you're on CM, use a theme that display battery and signal in a color other than green in the status bar.
My one biggest complaint is really how noticeable pixels are on letters and some images. I was looking at some other phones and I found the screens to look a little more crisp. (Is this attributed to a higher resolution or PPI?)
The next point that bugs me is the body. Yes, it's gorgeous, yes it's light and easy to handle... but it -does- scratch and ding easily.
Click to expand...
Click to collapse
I agree that the pixels are visible for some reason on the Nexus. It is not a deal breaker, but it is surprising when you read so many people saying how awesome the screen is. (to answer your question, higher resolution would mean LESS visible pixels.)
And while turning up brightness does help with the tint, my battery reading states that at times the screen is consuming more than 80% of the battery! ouch. Right now it says Display=66%)
And many reviews refer to the tinted LCD - it drives me mad. I am a photographer, and so maybe I am more sensitive to it than some.
I think the body of this thing would be helped hugely if if was the same shape, weight and size, but made of better materials! And the slippery plastic makes it NEED a case according to me, and with a silicon case it is LARGER than an Evo. (same width, but taller... Better build materials would solve the need for the case)
It only bothers me when the screen is on its highest brightness setting and when I'm reading white text on black. Otherwise, I think it displays things pretty nicely. I only notice some pixels around a few images. I bought this on May 14th, 14 days short to exchange it out for an Evo3D. I'm kind of on the fence about it though... On one hand, I think it's a really nice phone (but maybe it's not for me?) On the other, I can't picture myself really needing an Evo3D, but if the display and signal are better... who knows?
(Off topic: If I return or exchange this nexus do I have 30 days with the new phone? I may get a temporary if I decide to do that)
Gmap, yes your 30 days starts over, but they may charge you $35 for "restocking." Though there will probably not be a fee if you exchange it for the same phone.
Thanks dude! I'll have to look around at other phones and compare the screens. Does the 3D screen on the EVO3D compromise the quality at all?
The 3d screen will be more contrasty and higher resolution than the current Evo...and the new phone's shape is more narrow as well.
It's really starting to grow on me. Don't get me wrong, anyone, I think the Nexus is a great phone but maybe not for me.
you can see pixels because the nexus's amoled screen actually has lower resolution compared to the LCD version, AMOLED has a pentile pixel layout, which means it has half the red and blue pixels compared to the lcd one.
http://en.wikipedia.org/wiki/PenTile_matrix_family#PenTile_RGBG
spamlucal said:
you can see pixels because the nexus's amoled screen actually has lower resolution compared to the LCD version, AMOLED has a pentile pixel layout, which means it has half the red and blue pixels compared to the lcd one.
http://en.wikipedia.org/wiki/PenTile_matrix_family#PenTile_RGBG
Click to expand...
Click to collapse
You are correct that the difference is due to AMOLED vs LCD, but the resolution is the same on each, 800x480.
matt2053 said:
You are correct that the difference is due to AMOLED vs LCD, but the resolution is the same on each, 800x480.
Click to expand...
Click to collapse
Each "pixel" on the Nexus S screen has 2 subpixels: one green and one red or blue. The pattern goes Green Blue Green Red Green Blue Green Red etc
Each "pixel" on an LCD screen has 3 subpixels: one green, one red, one blue. The pattern goes Green Blue Red Green Blue Red etc.
jonnythan said:
Each "pixel" on the Nexus S screen has 2 subpixels: one green and one red or blue. The pattern goes Green Blue Green Red Green Blue Green Red etc
Each "pixel" on an LCD screen has 3 subpixels: one green, one red, one blue. The pattern goes Green Blue Red Green Blue Red etc.
Click to expand...
Click to collapse
Got it. But, the resolution is still 800x480 on each device. Each device displays 384,000 pixels at a time regardless of "sub-pixel" structure, right?
jonnythan said:
Each "pixel" on the Nexus S screen has 2 subpixels: one green and one red or blue. The pattern goes Green Blue Green Red Green Blue Green Red etc
Each "pixel" on an LCD screen has 3 subpixels: one green, one red, one blue. The pattern goes Green Blue Red Green Blue Red etc.
Click to expand...
Click to collapse
In addition,
The human eye is most sensitive to green, especially for high resolution luminance information. Thus the RG-BG scheme [AMOLED] creates a color display with one third fewer subpixels than a traditional RGB-RGB scheme [LCD] but with the same perceived display resolution.
http://en.wikipedia.org/wiki/PenTile_matrix_family#PenTile_RGBG
Click to expand...
Click to collapse
matt2053 said:
Got it. But, the resolution is still 800x480 on each device. Each device displays 384,000 pixels at a time regardless of "sub-pixel" structure, right?
Click to expand...
Click to collapse
Each pixel on an LCD can display any color.
Each pixel on an AMOLED screen can display either any combination of green\red OR any combination of green\blue.
It's a subtle difference, but it is a difference and it's why the Nexus S screen can look a little weird when you look closely, particularly at complex color patterns, especially when talking grays. On an AMOLED screen, an individual pixel can't be gray.
jonnythan said:
Each pixel on an LCD can display any color.
Each pixel on an AMOLED screen can display either any combination of green\red OR any combination of green\blue.
It's a subtle difference, but it is a difference and it's why the Nexus S screen can look a little weird when you look closely, particularly at complex color patterns, especially when talking grays. On an AMOLED screen, an individual pixel can't be gray.
Click to expand...
Click to collapse
I definitely notice. My opinion is the vivid colors and amazing contrast make the trade off totally worth it and I prefer the AMOLED.
I was only being "nit-picky" because you used the term resolution. Regardless I learned something here today, so thanks!

Anyone else have blue color shifting when viewed even a little off-axis?

I received my Axon 7 on Wednesday this week. The AMOLED screen does have very good blacks and looks vibrant, but there is an issue I haven't seen discussed - I'm trying to determine if its just my phone, an issue with AMOLED in general, or perhaps a coating specific to the Axon 7:
When I view the phone directly, whites look correct (warm, natural or cool depending on the Display setting). However, turning the phone even a little off-axis, 10-20° either vertically or horizontally, introduces a very small blue shift - whites especially take on a bluish, sort of washed-out cast. It makes the colors seem much more shallow and unreliable. Can those of you who received your phones go to a WHITE or light-color screen and report if this happens for you too?
This is actually hard to identify, most people will just see something is a little "off" - to my eye, it looked like a very subtle version of a TN-panel color shift. I never have seen this on an IPS panel, though off-angles may get washed out (see Nexus 5/5X) quickly at 50-60°, they always retain their color, even if it lightens. Or, e.g., the Moto X Pure 2K IPS panel that I'm coming from has zero off-angle color shift, no wash-out, and just darkens a little even at 180°. This is my first AMOLED panel, so I'm not sure if it happens often.
If anyone can help me determine whether this is a defect or an expected limitation, that would be great.
I've noticed it on my A7 too. This is my first AMOLED phone, so I too am not sure if this is normal.
I see it also. Thanks a lot now I won't be able to insert it.
For now I will blame the screen protector that came in the screen.
Welcome to Amoled.
The cheap screen protector contributes too,
Thanks, all - I guess it's just the phone then. I actually don't have the screen protector insert applied, so I assume the "screen protector" refers to the factory glass overlay.
Does anyone know if even the new Samsung AMOLEDs exhibit this shift? I think the Axon 7 is technically a Samsung panel, but I wouldn't be surprised if Samsung kept the best AMOLED technology for themselves.
Not sure this is a dealbreaker, but it's definitely a step down from the great color-true viewing angles on the Moto X Pure. (Too bad Moto abandoned the good design the Moto X Pure had for gimmicky snap-on modules this year rather than iterating - it seems like the Axon 7 is otherwise the spiritual successor to the MXP.)
ScaryBugThing said:
Thanks, all - I guess it's just the phone then. I actually don't have the screen protector insert applied, so I assume the "screen protector" refers to the factory glass overlay.
Does anyone know if even the new Samsung AMOLEDs exhibit this shift? I think the Axon 7 is technically a Samsung panel, but I wouldn't be surprised if Samsung kept the best AMOLED technology for themselves.
Not sure this is a dealbreaker, but it's definitely a step down from the great color-true viewing angles on the Moto X Pure. (Too bad Moto abandoned the good design the Moto X Pure had for gimmicky snap-on modules this year rather than iterating - it seems like the Axon 7 is otherwise the spiritual successor to the MXP.)
Click to expand...
Click to collapse
Of course Samsung keeps the top production panel for themselves... However, it's still a great panel according to colorimetry tests.
Don't notice it on my unit. Jumped from a galaxy S7 edge to the Axon 7 and the display looks exactly the same to me.
This is an area that has driven me a little crazy. I'm used to my Samsung AMOLEDs (Note 4, Note 3, S3, etc.), and they don't have any noticeable "shift", This screen is gorgeous, but it's not a top-tier Samsung panel (obviously). Still, small price to pay for a 400 dollar savings over a Note 7. I am also positive the matte screen protector isn't helping. Once my tempered glass one gets here, I will switch it out and see if it makes a difference.
Which tempered glass screen protector are you getting? I have not read one good review for any of them...yet.
As an update, I went and tried some floor model Galaxy phones at the mall, and they actually had worse off-axis blue shift. Not sure if that's because of the initial screen quality, or that it got worse over time.
Does anyone know of any AMOLED phone (specific model) that does not have any perceptible shift? Does anyone know if the shift gets worse over time?
ScaryBugThing said:
I received my Axon 7 on Wednesday this week. The AMOLED screen does have very good blacks and looks vibrant, but there is an issue I haven't seen discussed - I'm trying to determine if its just my phone, an issue with AMOLED in general, or perhaps a coating specific to the Axon 7:
When I view the phone directly, whites look correct (warm, natural or cool depending on the Display setting). However, turning the phone even a little off-axis, 10-20° either vertically or horizontally, introduces a very small blue shift - whites especially take on a bluish, sort of washed-out cast. It makes the colors seem much more shallow and unreliable. Can those of you who received your phones go to a WHITE or light-color screen and report if this happens for you too?
This is actually hard to identify, most people will just see something is a little "off" - to my eye, it looked like a very subtle version of a TN-panel color shift. I never have seen this on an IPS panel, though off-angles may get washed out (see Nexus 5/5X) quickly at 50-60°, they always retain their color, even if it lightens. Or, e.g., the Moto X Pure 2K IPS panel that I'm coming from has zero off-angle color shift, no wash-out, and just darkens a little even at 180°. This is my first AMOLED panel, so I'm not sure if it happens often.
If anyone can help me determine whether this is a defect or an expected limitation, that would be great.
Click to expand...
Click to collapse
I believe others are correct that it is the cheap screen protector. Plastics is refracting the light leaving the phone. Since blue light refracts more (the reason the sky and sea is blue). you will then to get more blue especially at certain angles.
I don't think tempered glass of the same thickness will make a significant difference but i do recommend getting a tempered glass protection because the cheap plastic one will surely be scratched very quickly. There a lot of things that will cause increased color shift, but I am not sure its a huge issue. I don't think accurate color is needed off axis. I could be wrong. I typically only look at the screen off axis when I am trying to take a odd angle picture or too lazy to move when I am in bed.
If any one does find a screen protector that distorts less please let us know.
HonestOtter said:
I believe others are correct that it is the cheap screen protector. Plastics is refracting the light leaving the phone. Since blue light refracts more (the reason the sky and sea is blue). you will then to get more blue especially at certain angles.
I don't think tempered glass of the same thickness will make a significant difference but i do recommend getting a tempered glass protection because the cheap plastic one will surely be scratched very quickly. There a lot of things that will cause increased color shift, but I am not sure its a huge issue. I don't think accurate color is needed off axis. I could be wrong. I typically only look at the screen off axis when I am trying to take a odd angle picture or too lazy to move when I am in bed.
If any one does find a screen protector that distorts less please let us know.
Click to expand...
Click to collapse
The first thing I did was remove the screen protector, and I still notice a blue-ish shift at angles. It's minor though, and it's definitely not a dealbreaker.
xtermmin said:
The first thing I did was remove the screen protector, and I still notice a blue-ish shift at angles. It's minor though, and it's definitely not a dealbreaker.
Click to expand...
Click to collapse
AMOLED screens are typically like that. When I get on the bus and see people using their galaxies, it always looks cyan from an angle. LCD technology loses contrast at angles, whereas AMOLED has chroma shift.
HonestOtter said:
I believe others are correct that it is the cheap screen protector. Plastics is refracting the light leaving the phone. Since blue light refracts more (the reason the sky and sea is blue). you will then to get more blue especially at certain angles.
...
If any one does find a screen protector that distorts less please let us know.
Click to expand...
Click to collapse
Just to be clear - the color shift happens without any additional protector. Someone else used the word "protector," but I only have the bare Gorilla Glass in front of the AMOLED screen, no plastic or other layer added.
I see it as well with no screen protector on.
ScaryBugThing said:
Just to be clear - the color shift happens without any additional protector. Someone else used the word "protector," but I only have the bare Gorilla Glass in front of the AMOLED screen, no plastic or other layer added.
Click to expand...
Click to collapse
I never understood why phone makers use glass. Just make it plastic with a removable glass screen protector that the user can replace if broken. My GF dropped her phone, The tempered glass protector broke but protected the glass screen.
I do like that the S7 active has a plastic screen just wish all companies did this.
Hello,
I have the same issue with 5 devices I was testing. Every Axon 7 had the issue with the color shift from a red tint, to a blue tint when tilted.
Is there someone without the issue or is it really normal?
Draygon said:
Hello,
I have the same issue with 5 devices I was testing. Every Axon 7 had the issue with the color shift from a red tint, to a blue tint when tilted.
Is there someone without the issue or is it really normal?
Click to expand...
Click to collapse
I guess it's the pentile arrangement, since blue subpixels are larger
Let's me play forntnitn

Mediocre - Subpar screen quality

My 32/3 Mi Max just arrived today, not too happy with the screen. It seemed so dull, some leaks on the edge. No competition between AMOLED screen and this. But the 7' LCD of 1920x1200 mediapad X2 is still a height better than this. Heck, even redmi note 2 is better. A little disappointed, glad I didn't go all out with 128/4 version.
Cryonics said:
My 32/3 Mi Max just arrived today, not too happy with the screen. It seemed so dull, some leaks on the edge. No competition between AMOLED screen and this. But the 7' LCD of 1920x1200 mediapad X2 is still a height better than this. Heck, even redmi note 2 is better. A little disappointed, glad I didn't go all out with 128/4 version.
Click to expand...
Click to collapse
Mine isn't that bad. Download Color Changer Pro from the Play Store. You can increase the saturation and colors in it. Mine almost looks as good as an AMOLED now minus the blacks.
Cryonics said:
My 32/3 Mi Max just arrived today, not too happy with the screen. It seemed so dull, some leaks on the edge. No competition between AMOLED screen and this. But the 7' LCD of 1920x1200 mediapad X2 is still a height better than this. Heck, even redmi note 2 is better. A little disappointed, glad I didn't go all out with 128/4 version.
Click to expand...
Click to collapse
The screen protector you have reduces screen quality especially black levels. 100% the cause. Most of the full cover glass for 2.5d screens does not actually adhere to the screen reducing contrast.
The screen quality is v.good although it uses software contrast boosting to make the colors nice, which can crush some details in colors.
Take off the screen prortector and show the same photo, you will see the big difference.
Btw what case do you have?
https://imgur.com/gallery/csM1E
I've made some comparison photo from some of my available devices on hand. It's horrible, They're definitely cutting corners on the screen. Even my $60 Alcatel phone looks better. My Mi Pad, and Redmi Note 2 have the same "washed out tinting" issues, but this is definitely worse than that.
Just for a note:
I took of the screen protector
Cryonics said:
https://imgur.com/gallery/csM1E
I've made some comparison photo from some of my available devices on hand. It's horrible, They're definitely cutting corners on the screen. Even my $60 Alcatel phone looks better. My Mi Pad, and Redmi Note 2 have the same "washed out tinting" issues, but this is definitely worse than that.
Click to expand...
Click to collapse
Did you read what I said about your screen protector.
The screen is IPS, there will always be changes in brightness when viewing off axis. It's called IPS glow. Depending on the screen, you will see it more from different angles. Mi Max might look better at a different angle than the other phones.
---------- Post added at 05:52 AM ---------- Previous post was at 05:44 AM ----------
Cryonics said:
https://imgur.com/gallery/csM1E
I've made some comparison photo from some of my available devices on hand. It's horrible, They're definitely cutting corners on the screen. Even my $60 Alcatel phone looks better. My Mi Pad, and Redmi Note 2 have the same "washed out tinting" issues, but this is definitely worse than that.
Just for a note:
I took of the screen protector
Click to expand...
Click to collapse
Now you can see the contrast is increased and black levels are better.
This is why I hate phones with 2.5d screens. You can get these full cover protectors which reduce quality or normal glass protectors which don't cover the screen fully. There is also tpu screen protectors which will cover fully without reducing quality, but they feel a bit rubbery and are hard to apply.
spix123 said:
Did you read what I said about your screen protector.
The screen is IPS, there will always be changes in brightness when viewing off axis. It's called IPS glow. Depending on the screen, you will see it more from different angles. Mi Max might look better at a different angle than the other phones.
Click to expand...
Click to collapse
I forgot to put the note on the bottom, I took off the screen protector.
All LCDs have that bleeds, glows or whatever you want to call it, I'm well aware of that. But, If you need to put your phone in an angle to get correct color reproduction, i think it defeats the purpose of "IPS" display in the first place.
Cryonics said:
I forgot to put the note on the bottom, I took off the screen protector.
All LCDs have that bleeds, glows or whatever you want to call it, I'm well aware of that. But, If you need to put your phone in an angle to get correct color reproduction, i think it defeats the purpose of "IPS" display in the first place.
Click to expand...
Click to collapse
IPS screens don't really have a purpose, it's just a screen type. Every type of screen has its flaw.
Amoled has image retention and must use pwm to reduce brightness. Some people notice the flicker/eye strain from it.
TN panel has inverted colors instead of ips glow. IPS still has better viewing angles and IPS glow is only noticeable at certain angles.
I have to agree that the full screen coloured screen protector is POS, just realised that it doesn't have any glue in the middle, making some gap between the screen and the protector. Gonna order some better one.
Besides the screen, it's a solid good phone I reckon. I get more than what I bargained for because it's really is an inexpensive phone.. too pampered by AMOLED I guess.
Cryonics said:
I have to agree that the full screen coloured screen protector is POS, just realised that it doesn't have any glue in the middle, making some gap between the screen and the protector. Gonna order some better one.
Besides the screen, it's a solid good phone I reckon. I get more than what I bargained for because it's really is an inexpensive phone.. too pampered by AMOLED I guess.
Click to expand...
Click to collapse
The battery life is amazing. I recently got the 3/32, currently 8.5 hours SOT and 40% battery left.
Hows the miui 8 rom? I've left mine on miui 7 for now as I've read some bad things about it on the miui forum.
---------- Post added at 06:44 AM ---------- Previous post was at 06:43 AM ----------
Cryonics said:
I have to agree that the full screen coloured screen protector is POS, just realised that it doesn't have any glue in the middle, making some gap between the screen and the protector. Gonna order some better one.
Besides the screen, it's a solid good phone I reckon. I get more than what I bargained for because it's really is an inexpensive phone.. too pampered by AMOLED I guess.
Click to expand...
Click to collapse
There is some full coverage protectors with glue in the middle, at least for other phones. Not sure if there is one for mi max but if there is, they are very rare.
It's fresh out of the box. Haven't really tried anything yet, but I'm on 8.0.1.0 apparently. I'm not sure about the battery life.. I'm more than happy to get 6.5hrs sot. My daily driver is iPhone SE, hands down its a beast of a phone, 9 hours on time give or take.
I just ordered Nillkin glass protector for my mi max, kind of expensive, but can't go wrong with that one. Please share with me if you found any good full screen glass protector.
The big draw of the Mi Max screen is the size, not the color accuracy or black levels or brightness. It's an average screen, not mediocre like a lot of cheap Chinese Android junk but not as good as an LCD on a flagship device. AMOLED is on a different planet because of the crazy saturation and inky blacks. I've had a few phones with AMOLED and although they're great for viewing photos and videos, they're not good for web surfing or working with documents because white draws more power. I didn't have any issues with burn in though.
1. The photo attached in the first post doesn't actually have the mi max in it. I suggest you remove it.
2. Second, the comparison album you made on imgur has software buttons and doesn't actually show that it's a Mi Max, while the separately attached photo in that same post has the xiaomi rom running. The separately attached photo clearly shows its the Mi Max and the display looks great to me with no issues.
My personal experience is also that the screen is great and I'm not sure where you're coming from...
netusername said:
1. The photo attached in the first post doesn't actually have the mi max in it. I suggest you remove it.
2. Second, the comparison album you made on imgur has software buttons and doesn't actually show that it's a Mi Max, while the separately attached photo in that same post has the xiaomi rom running. The separately attached photo clearly shows its the Mi Max and the display looks great to me with no issues.
My personal experience is also that the screen is great and I'm not sure where you're coming from...
Click to expand...
Click to collapse
In the first post, Mi Max is the middle phone. The user has installed a full coverage black glass screen protector which reduces the contrast as there is an airgap between it and the display.
I thought long and hard about wading into this thread, but after using the phone for a week I figured why the chuff not.
So, yeah, after 7 days use I've got to say I think the screen is pretty great! I haven't seen any hint blue tint I've read about in a few reviews, although, my device is much newer than the first batches and preproduction models, so that could explain it.
It's not as punchy as an AMOLED, but AMOLED colours are often way inaccurate. Which brings me to my next point, I find the screen pretty spot on in terms of colour accuracy (visually speaking at least, I've got no idea as to the reproduction of the panel on a spec level). It's definitely an improvement over my Meizu M1 Metal.
For the money, it's hard to fault this device. It's by no means perfect, but it's 1/5 the cost of a Samsung Galaxy Whatever.
MikusP said:
I thought long and hard about wading into this thread, but after using the phone for a week I figured why the chuff not.
So, yeah, after 7 days use I've got to say I think the screen is pretty great! I haven't seen any hint blue tint I've read about in a few reviews, although, my device is much newer than the first batches and preproduction models, so that could explain it.
It's not as punchy as an AMOLED, but AMOLED colours are often way inaccurate. Which brings me to my next point, I find the screen pretty spot on in terms of colour accuracy (visually speaking at least, I've got no idea as to the reproduction of the panel on a spec level). It's definitely an improvement over my Meizu M1 Metal.
For the money, it's hard to fault this device. It's by no means perfect, but it's 1/5 the cost of a Samsung Galaxy Whatever.
Click to expand...
Click to collapse
It is a bit on the blue side but just a bit & you correct it with enabling reading mode & moving slider to the beginning position.
Did my own view test today by using MX player & putting it in to the 32 bit RGB display colour format and then I played a 10 bit Hevc movie. Well the display is quite good but nothing mind blowing. Luminance is an a down side required for something like HDR but it can pass presumably if you use it in controlled darker environment. Actually with brightness set to 11 out of 15 possible (which translate into 73.3%) its good enough but if you go over that contrast and with it quality begins to go down drastically, 12 (80%) is top & even that I would call a compromise. Don't be missed by this for a mobile phone LED display this one is perfectly fine, not a stellar one nor the best one out there but perfectly fine. The little more brighter displays won't make much of the difference between 450 & 550 nits their is little to non difference you will be able to see in this particular case regarding LCD's, next category should be a 700~1000 nits but mobile phones & only couple of them are stepping in lower margins of that category.
At the end I just can't not to wonder if the guy who did a calibration of the display had a little problem with its eye sight because you see as much a display is on a cold (blue) side & that is minimal a tad or two the photos (with main camera) are proportionally on the opposite warm (yellow) side.
Best regards.

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