there are several threads for HD2 and desire they are using super amoled screens ... they have mentioned that for super amoled usng black background saves battery ...... cause the pixels are turned off ...
while in case of LCD the pixels are by default turned on .... so if we put black background it actually sucks more juice in case of LCD using Black background . it is advisable to keep white background in case of LCD
Motorola defy neither has LCD and definitely not super amoled screen ......so should we keep black background or white background to save battery ??? i mean ours is Capacitative TFT .... so which on of the case above i mentioned is applicable for motorola defy?
black is prefered, the white one is so dazzle...
joydeep1985 said:
i mean ours is Capacitative TFT .... so which on of the case above i mentioned is applicable for motorola defy?
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LOL, the Defy has a capacitive LCD Touchscreen.
So in theorie it is better to have a white background but
the most saving can be achieved when turning down the backlight.
So it is more important to have good contrasts.
greetings
LCD are on all the time when showing black areas or even a full black screen (not the same as being off), unlike OLED choosing a dark background will not save any battery life.
But I have noticed when using dark themes my display consumers less battery.
Sent from my MB525 using Tapatalk
Makes no difference, lcd backlight is always on regardless of colour.
Just decrease your phone's brightness, it will consume less battery regardless of White/Black background [which may matters but I never experienced such things]
sg3707 said:
But I have noticed when using dark themes my display consumers less battery.
Sent from my MB525 using Tapatalk
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Defy uses a LCD screen, therefore turning all pixels on all the time something is displayed. Even pure black pic
OLED screens however benefit from black backgrounds since a pixel is not turned on until it is commanded to display a color other than black. This results in deeper blacks/higher contrast.
therefore, using a black bg on a lcd screen will not save you power. If you experience otherwise, it's placebo effect
So I am coming from an LCD screen to the Nokia's Amoled screen and I am curious on Amoled screen is the white supposed to be a "rainbow" color? Like on my LCD screen White is well WHITE no other colors bleeding through. On this amoled screen I am see like a rainbow of colors behind the white like reds, blues, etc it's till white sort of but not as crystal white as the LCD.
Is this by design and something I should get used to? I thought Amoled was supposed to be better...
Laquox said:
So I am coming from an LCD screen to the Nokia's Amoled screen and I am curious on Amoled screen is the white supposed to be a "rainbow" color? Like on my LCD screen White is well WHITE no other colors bleeding through. On this amoled screen I am see like a rainbow of colors behind the white like reds, blues, etc it's till white sort of but not as crystal white as the LCD.
Is this by design and something I should get used to? I thought Amoled was supposed to be better...
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Click to collapse
Whites on Amoled appear to be off-white. It's been this way with every Amoled device. I've never seen it to appear "rainbow" colored.
Amoled produces richer more saturated colors and outstanding black levels.
LCD and SLCD is a lot brighter than Amoled (hence the crystal white) but the black levels do not compare.
Before my 900, I was an SLCD fan. But Amoled with the clearblack looks like SLCD on steroids. Minus the lower white levels. Of course this is just my opinion.
So it's possibly just the ultra saturation bleeding through the "whites" that give it the "rainbow" effect. I don't know how else to to describe it. White is simply no white but like a multi spectrum white with other colors bleeding through.
Looking at mine right now the white looks pretty darn white.
The thing I have noticed is for instance when I bought a samsung focus I was torn between it and two HTC Devices... I forget the names. Both were SLCD. I just COULD NOT get past the washed out look of the HTC devices over the samsung.
The nokia is even richer in color than the samsung.
hx4700 Killer said:
Looking at mine right now the white looks pretty darn white.
The thing I have noticed is for instance when I bought a samsung focus I was torn between it and two HTC Devices... I forget the names. Both were SLCD. I just COULD NOT get past the washed out look of the HTC devices over the samsung.
The nokia is even richer in color than the samsung.
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Agreed - I've had the Focus, HD7s, and now the Nokia 900 and the Nokia is so far my favorite. I feel I should point out that the 'Nokia Blue' theme is sharper than the default windows phone blue theme, making the other devices appear washed out when in fact it's the correct color.
But the ability to use the device outdoors was a huge factor in my selection, certainly.
I like all the colors in the amoled except white. White really looks washed out compared to LCD screens and this is the only disappointment I have with amoled screens.
the benefits of an amoled are color saturation, deep rich blacks, and energy consumption on non-white backgrounds
SLCD create more "accurate" colors, that some see as washed out - generally are a bit brighter (lumens) and more white whites
the amoled produce off whites - if you compare the two, but you should not really notice it on an amoled unless you compare it to a true white
also, off angles can produce a slight blue hue to the whites
to each his own - I prefer the amoleds blacks (with the WP7 metro themes), to the washed out colors of an SLCD - but that does not mean you or someone else will too
could it be that your screen might be dirty?
i know on mine if i have some water or oil on the screen it will create a prism effect, which will rainbow the colors, especially with a white screen.
personally i haven't seen whites get a rainbow effect, but they are a little dim, which could be partly due to the screen tech (amoled) and could also be the hardware dimming them intentionally to save on battery (white is a battery killer on amoled screens)
but the inky blacks and pop of color from amoled makes me not really care, as the screen looks brilliant.
and the clearblack display on the nokia is great in the sun.
rainbow colors are only suppose appear on pentile displays. this phone has a true rgb screen so i dont see why
Nissan350 said:
Whites on Amoled appear to be off-white. It's been this way with every Amoled device. I've never seen it to appear "rainbow" colored.
Amoled produces richer more saturated colors and outstanding black levels.
LCD and SLCD is a lot brighter than Amoled (hence the crystal white) but the black levels do not compare.
Before my 900, I was an SLCD fan. But Amoled with the clearblack looks like SLCD on steroids. Minus the lower white levels. Of course this is just my opinion.
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AMOLED does not inherently have dim whites. Samsung just programs a dimming condition into the firmware on some its AMOLED panels that make it dim the brightness based on the % of white pixels on the screen (as a sneaky way to improve battery). The Focus S has an extra setting that lets you disable this, but the L900 does not have that setting.
drleospaceman said:
AMOLED does not inherently have dim whites. Samsung just programs a dimming condition into the firmware on some its AMOLED panels that make it dim the brightness based on the % of white pixels on the screen (as a sneaky way to improve battery). The Focus S has an extra setting that lets you disable this, but the L900 does not have that setting.
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I see. Bummer
A dim AMOLED screen also helps prolong the panel life span a lot. AMOLED screens are extremely prone to burn in. Avoid extreme brightness and avoid leave screen on for extended period.
Just remember this: it is very easy to bump up a screen's brightness (brighter back light on LCD) but it is extremely difficult to produce true blackness on a screen. The strength of AMOLE is the true black because it has no back light. Each pixels emit light. Darker black = higher contrast. No LCD can ever match the black level of an AMOLED screen.
foxbat121 said:
A dim AMOLED screen also helps prolong the panel life span a lot. AMOLED screens are extremely prone to burn in. Avoid extreme brightness and avoid leave screen on for extended period.
Just remember this: it is very easy to bump up a screen's brightness (brighter back light on LCD) but it is extremely difficult to produce true blackness on a screen. The strength of AMOLE is the true black because it has no back light. Each pixels emit light. Darker black = higher contrast. No LCD can ever match the black level of an AMOLED screen.
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i wouldnt keep saying that lol, htcs IPS SLD 2 can almost match against the blacks of a super amoled and has better colors all around without having to be pentile. unless you were to compare side to side you would be completely happy with the blacks on the one x.
edit: http://www.engadget.com/2012/04/05/htc-one-x-vs-one-s/ compare the blacks, barely a difference unless you were looking hard
i would go with the ips slcd 2 anyday considering no burn, great viewing angles, great battery life especially whites and cloes to as good battery life on blacks, visable outdoors, realistic looking colors/not over saturated, etc. its a balance between good blacks, and good whites. still wouldnt touch the one x though
^^^ above poster have never used an amoled display
slpin said:
^^^ above poster have never used an amoled display
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I most definitely have. from samsungs first amoled screens the behold 2. and both gens of galaxy s.
and i take it you have used the one x? no? since its the only phone with the IPS SLCD "2". not talking about regular SLCD, i have the amaze and the blacks look like crap.
almost every reviewer that has had their hands on nearly every android handset has stated its the best screen they have seen. just my 2 cents.
LCD is growing, OLED is still failing with screen burn.
also, im no htc fanboy (anymore). i really want the lumia 900 actually
Any reviewer says SLCD2 is better or equal to AMOLED has no clue what they are talking about. For the most part, they equal high brightness to better display. Read those reviews carefully. They are probably the same idiots who prefer LCD TVs to Plasma TVs. They made no scientific measurements of the contrast ratio of the screens. So, basically they are simply talking out of their a**.
Yes, LCD has more accurate colors. But it can never have better or equal blacks. There is no way to make LCD panel to block backlight completely.
foxbat121 said:
Any reviewer says SLCD2 is better or equal to AMOLED has no clue what they are talking about. For the most part, they equal high brightness to better display. Read those reviews carefully. They are probably the same idiots who prefer LCD TVs to Plasma TVs. They made no scientific measurements of the contrast ratio of the screens. So, basically they are simply talking out of their a**.
Yes, LCD has more accurate colors. But it can never have better or equal blacks. There is no way to make LCD panel to block backlight completely.
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I guess almost every reviewer that has reviewed this phone talks out of their ass, technobuffalo, engadget, phonedog, telegraph? lol, nearly every review that i have read said that. people who love the galaxy s 2, and both aaron from phonedog and john from technobuffalo used the note as their daily and preferred the one x screen.
just because the blacks are one notch off doesnt mean it's not superior. considering it will have better battery life, much more accurate colors, sharper images (when compared to pentile especially), no screen burn (plasma tvs have that horribly, so id stick with my lcd tv). blacks arent the most important color on a phone lol, and i never said they are better or as good. they are pretty damn close though. especially for being a LCD. after seeing screen burn on plasma tvs and oled screen its hard to say id rather have one. people who want a little bit more black screens are okay with screen burn?
and horrible whites?
also, people who dont stay in a cave all day. the ones who go out side, ips is far superior lol considering you have grea viewing angles and its completely viewable outside.
compared to the galaxy nexus the blacks almost looks exactly the same.
i would rather have amoled screen on wp7, but on android i would probably rather have the sld2
http://www.engadget.com/2012/04/13/lg-renames-optimus-lte-to-optimus-true-hd-lte-disses-samsungs/
look at this photo: http://i43.tinypic.com/2wn7jfd.jpg
you can barely tell a difference between the menu dots and the bezel. opposed to other lcds. it could be comparable to amoled defintely.
outside photo with low brightness: http://i44.tinypic.com/ipqgzs.jpg
still compeltely visible
overal its all about personal preference, but im sure saying that the new screen is comparable and would even be hard to choose from even over super amoled. i was about to ditch LCD honestly (my amaze has horrible blacks) before seeing this screen. too bad its not in other phones.
Screen quality better be left to those know how to compare, e.g. those who review hdtv for a living. lmao the stuff you quoted above.
Remember, contrast ratio = brigest / darkest. The slight difference in black level significantly changes the contrast ratio. Not so much on brightness.
Yes, there are magic coatings on LCD screens that make them appear dark then actually is. The problem is such coating could cause black crush or false contour. Of course those phone reviewer didn't test those important aspect of PQ of a panel, did they?
Sent from my SAMSUNG-SGH-I777 using XDA
foxbat121 said:
Screen quality better be left to those know how to compare, e.g. those who review hdtv for a living. lmao the stuff you quoted above.
Remember, contrast ratio = brigest / darkest. The slight difference in black level significantly changes the contrast ratio. Not so much on brightness.
Sent from my SAMSUNG-SGH-I777 using XDA
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Not really something to even think about. OLED hasnt been seen on a mobile devices over WVGA resolution WITHOUT pentile, we all know pentile sucks. colors, sharpness, etc. we have HD screens with IPS completely sharp, great colors, etc. just my 2 cents
http://i-cdn.phonearena.com/images/articles/48137-image/100-Crop-Red.jpg <- pentile
you dont need to review tvs to know if a mobile screen is good or not. these people have had their hands on nearly every android/wp7/blackberry/wm6 handset. pretty sure they have some say, especially for engadget always hating on every company besides apple then says the one x has the best screen they have seen lol.
both AMOLED/SAMOLED, and IPS SLCD have 16m colors. except the IPS has better viewing angles, no screen bleed, able to see the screen outside, whites to look blue, etc. you dont need to be a reviewer to know which is better.
unless your like everything on your phone to be black, and nothing but black then i dont see the point of saying oled is better just because the blacks are a notch better..
on different OS i would prefer different types of screens. LCD would be crap on wp7 i think unless you used whites a lot. we have yet to see IPS SLCD on wp7 i dont ever think we will. on android though i and other people like having high resolution, good looking colors, etc. cant have that with amoled unless you like pentile. wvga doesnt cut it with android anymore
take a look at the nokia 701, has lcd with clearblack and the blacks look great one it.
FYI, iPhone 4/4s has IPS screen and yet it looks hazey and has the lowest contrast ratio among almost all smartphone screens. IPS maybe better than other LCD screens. But it is still LCD screen. It is physically not possible to completely block the backlite. Otherwise, we don't need local dimming technology on high end LCD TVs anymore.
Having used so many Samsung phones with AMOLED screens, it was always recommended to use black apps, and dark wallpapers to save battery life, that white is a big battery drain on AMOLED.
Now with the One X being S-LCD2, I thought we don't need to use black as much ? Is white apps, and lighter wallpapers OK on this phone ? White is not a battery drain on the One X ?
Sent from my HTC One X using xda premium
No, it's backlit, which is why it's brighter.
AMOLED can turn off the pixels that need to be black, saving power. LCD, on the other hand, can not.
The One X has an LCD screen, so there's no advantage of more black. Exactly the same amount of power being used, regardless of the colour shown.
peedub said:
AMOLED can turn off the pixels that need to be black, saving power. LCD, on the other hand, can not.
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That's not a clear description.
With OLED, the pixels emit light, on black, they emit no light and require no power.
With LCD, the pixels block light (either reflected or backlit), the backlight is always on, always requiring power.
There are many other aspects, such as contrast, brightness, colour gamut, aging effects etc.
Hi.
When I try to use the Samsung code to test the black color in the screen. In the dark, I can see I difference between black and when the screen is off. Why??
Led are supposed to be turned off with black color?? Is Samsung just lying as for the exynos 5 benchmark or is it my phone which is in fault??
Just try in the darkness the black screen with Samsung code and turn off the screen. You will see that black aren't fully black. That sucked!
Anyone saw this problem with black color??
ppn7 said:
Hi.
When I try to use the Samsung code to test the black color in the screen. In the dark, I can see I difference between black and when the screen is off. Why??
Led are supposed to be turned off with black color?? Is Samsung just lying as for the exynos 5 benchmark or is it my phone which is in fault??
Just try in the darkness the black screen with Samsung code and turn off the screen. You will see that black aren't fully black. That sucked!
Click to expand...
Click to collapse
Because amoled lights the screen intself instead of lcd(LCD needs backlight). amoled doesn't turn off when there is a black pixel, it just shines black. Therefor its almost impossible to get it real black.
I know with e.g. OLED displays, the brightness and amount of non-black elements decides how much battery it drains. Is the same true for the display on the SW3? In other words, does a heavily black ambient watchface use the battery any differently than a heavily white one?
Like for any other LCD, no.
rvirga said:
Like for any other LCD, no.
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That's actually not true, most LCDs require energy to display black, since it requires energy to flip the particular pixel. Some LCDs have tech that negates this, or flip the energy on the pixels so that white is actually the energetic color, but don't know that we know what type of display the SW3 uses. I've swapped to a mainly white on standby face for now.
Hm after a few days, the resting state for the LCD is probably black. Which should have been obvious since the display is black when off. Using the TextFace face, I've had better life than on my all-white face.