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Will using Black background,drain battery less than using white background?
White background produces more light hence more drain...
Any thoughts...
Huh? you mean having a black wallpaper?
yep..you got it right..
dude check peoples 4shared files in their sigs why would you ask a question like that.
actually you know what I apologize. Search here in my 4shared files.
redbandana said:
actually you know what I apologize. Search here in my 4shared files.
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We've got Rolled xD! Nice one!
Blackle
This sounds like the old Blackle instead of Google argument. Black does not save battery energy on an LCD monitor, of it it does its negligible. If the LCD is on, the backlight is on regardless of the colour displayed.
"The Roberson study found that LCD monitors saved up to 3W by switching from a white to a black screen, and in no case did any of the LCD monitors use more energy displaying black than white. "
The old CRT monitors save energy displaying black, but it is widely thought that LCD monitors do not.
http://ecoiron.blogspot.com/2007/08/history-in-january-2007-mark-ontkush.html
With regards
Jeff
jeffmurray said:
This sounds like the old Blackle instead of Google argument. Black does not save battery energy on an LCD monitor, of it it does its negligible. If the LCD is on, the backlight is on regardless of the colour displayed.
"The Roberson study found that LCD monitors saved up to 3W by switching from a white to a black screen, and in no case did any of the LCD monitors use more energy displaying black than white. "
The old CRT monitors save energy displaying black, but it is widely thought that LCD monitors do not.
http://ecoiron.blogspot.com/2007/08/history-in-january-2007-mark-ontkush.html
With regards
Jeff
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All I have to say is...
"You know the rules, and SO DO I!"
I have been using a black Google at bGoog.com to get a better battery life on my phone and to reduce my data usage. On OLED based screens you can use over 4x less power having a black background instead of white! The idea that black screens don't save anybody power is out of date and does not account for all the OLED screens that are growing fast in popularity and now in use. There is more info on this at bGoog.com/about
Doesn't the backlight produce the light? It's is on as bright as it is regardless of color in the background. The background color is what it is regardless of the backlight.
I have been using a black Google at bGoog.com to get a better battery life on my phone and to reduce my data usage. On OLED based screens you can use over 4x less power having a black background instead of white! The idea that black screens don't save anybody power is out of date and does not account for all the OLED screens that are growing fast in popularity and now in use. There is more info on this at bGoog.com/about
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Does this phone have OLED?
ChumleyEX said:
Doesn't the backlight produce the light? It's is on as bright as it is regardless of color in the background. The background color is what it is regardless of the backlight.
Does this phone have OLED?
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What you are thinking about only applies to LCDs from what I understand. CRT, Plasma and AMOLED screens don't have a backlight. Here's an article on AMOLED that explains it: en.wikipedia.org/wiki/Active-matrix_OLED
frank_j said:
What you are thinking about only applies to LCDs from what I understand. CRT, Plasma and AMOLED screens don't have a backlight. Here's an article on AMOLED that explains it: en.wikipedia.org/wiki/Active-matrix_OLED
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And the Kasier has an LCD display, so why talk about any other type of screen ..
Display: 2.8", 240 X 320 QVGA TFT-LCD display with adjustable angle and backlight
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Hi all,
Got the Galaxy S for a month, pretty happy with it. Yesterday, the brightness suddenly gone up. The worst part is the display lost the gradient scaling and it is replaced by colour bands!
Apps like the stock video player for example. Before the video is played, you can see the grey control bar at the bottom covers by a lot of colour bands. The colour of the movie is all washed out as if you were playing it in 8 bit colour mode. Where the same avi played okay before, crystal clear and colour was rich.
Same thing with the charging screen while the phone is off. You can see the colour bands on the grey area of the shadow of the green battery. Just wondering if anyone has the same problem?
Cheers!
Factory reset :d
Tried all that full factory wipe, data reset, flash to different rom. Nothing works
Then your device's probably faulty. replace it.
Pretty certain it is. I took a screenshot of the video player and it looks fine but on the screen, you can still see those colour bands meters away.
I guess this indicates the LCD is faulty.
romhunter said:
I guess this indicates the LCD is faulty.
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The galaxy s has no LCD its LED
Ive noticed when you slide down that tray from the top, when closing it mine has MANY TIMES switched to full brightness. But simply tapping the brightness button on the multi widget thingy makes it go back to how I want.
evil-doer said:
The galaxy s has no LCD its LED
Ive noticed when you slide down that tray from the top, when closing it mine has MANY TIMES switched to full brightness. But simply tapping the brightness button on the multi widget thingy makes it go back to how I want.
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Thats because you can adjust the brightness by sliding your finger accross the notification bar.... doesnt work if you have auto brightness ticked...
talboy said:
Thats because you can adjust the brightness by sliding your finger accross the notification bar.... doesnt work if you have auto brightness ticked...
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I have auto brightness ticked, sliding still works for me
Standard rom btw...
Sent from my GT-I9000 using XDA App
Hi I have the exact same problem! But I didn't notice it before now wen I saw this thread. But all the colours are just fine when I play a vid, it's just the grey controlbar that is by many stripes of different colours, looks like 8bit colour. But when the vid starts playing its just fine, because it gets transparent. Should I get this phone changed, have just had it a couple of weeks.
Sent from my GT-I9000 using XDA App
Hi Radat,
I posted more info in the other forum including some screenshots. http://forums.whirlpool.net.au/forum-replies.cfm?t=1520586
Hope yours okay. I am going to call Samsung tomorrow.
romhunter,
yup, saw the screenshots, looks like quantization problem i.e. that colours are using fewer bits than normal. For example, RGB screen might use 24 bits per pixel, 8 bits per r/g/b colour, the screenshots seem to suggest only 5 or 6 bits per colour.
Hopefully this is just a software glitch, though you said you already tried factory reset / wipe, could it be a loose cable wire somewhere or maybe a problem with the screen to mainboard connector?
talboy said:
Thats because you can adjust the brightness by sliding your finger accross the notification bar.... doesnt work if you have auto brightness ticked...
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awesome. theres so many little shortcuts like this ive yet to learn. thanks
On my sgs, there is a green colour attached to to the grey colours, I can see it really good when using Screen test app on the gray scale screen, all grey is sort of green!
romhunter said:
Hi all,
Got the Galaxy S for a month, pretty happy with it. Yesterday, the brightness suddenly gone up. The worst part is the display lost the gradient scaling and it is replaced by colour bands!
Cheers!
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Just got a brand new device. Used it for about an hour, then the exact same thing happened - out of the blue.
Any possible home-front solutions? Having to take it to be serviced is a PITA for me ATM.
Mine definitely seems to have banding in the video player control pane before the video playback starts. Can someone please post a screenshot of how it should be? I haven't seen the banding issue anywhere else except the battery charging indicator when charging the phone when it's turned off. And as far as I remember they were always like that.
So can someone please post a screenshot of how it should be for me to compare.
I have the same problem appeared after upgrading to Froyo. Brightness increased (even it is high in the lowest setting) and color saturation also increased. As a result, i see bandings or lines where a color gradient exist. I added an example photo from "Samsung Apps" page. You can easily see bandings on the bottom. I see such things in a PC screen if color adjustment is not optimum. So there must be a way to adjust screen saturation and brightness by a software through registry i think. It seems like a software problem. I think it is a very rare problem, i found few people on the web complaining about it. Mostly HTC Desire, which use also Samsung Amoled screen, users complaining about it.
I did everything said on forums to solve it but no way. I flashed many different roms both eclair and froyo, use a software given in HTC forums to change RGB color, changed color settings through video player etc. Nothing worked. Please help
victor79 said:
I have the same problem appeared after upgrading to Froyo. Brightness increased (even it is high in the lowest setting) and color saturation also increased. As a result, i see bandings or lines where a color gradient exist. I added an example photo from "Samsung Apps" page. You can easily see bandings on the bottom. I see such things in a PC screen if color adjustment is not optimum. So there must be a way to adjust screen saturation and brightness by a software through registry i think. It seems like a software problem. I think it is a very rare problem, i found few people on the web complaining about it. Mostly HTC Desire, which use also Samsung Amoled screen, users complaining about it.
I did everything said on forums to solve it but no way. I flashed many different roms both eclair and froyo, use a software given in HTC forums to change RGB color, changed color settings through video player etc. Nothing worked. Please help
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I looked at ur pic. I honestly dont see any problem with it. What is this banding ur talking about?
Sent from my GT-I9000 using XDA App
Bottom of the screen, around "2010 Samsungs Electronics". This part should be a smooth color transition from blue to transparent but there are circular lines between colors. Is your screen the same.
Another example. The one on the phone looks white on the upper part where a color transition from dark to light black exist and there are visible lines. But normally it was looking like the other picture (taken from notebook screen) before this problem
ah on that screen i already see 8 shades of blue, most be around 4k colors .. bummer though, it's normally a software problem, doubt that a conector has come loose. (but possible if it's a pimped up composite plug with Y/Pr/Pb, .. eh still impossible cos it's getting decoded before that)
or my screen have problem.
download display color test from market or any other aplication
set your display light to manual and lower one possible.now open display color test, or any other picture and you whil see.... some orizontal lines like gradients.
(for me i can use a lower light to 40 %).
tell me your experience.
please.
Light lowered as low as possible... no probleme here
With some less intensive colors I could make out some kind of lines but I had to watch pretty closely to notice them. If I hadn't been searching for them, I probably wouldn't even have noticed. So it's nothing I would worry about, unless they are more pronounced for you.
CazeW said:
With some less intensive colors I could make out some kind of lines but I had to watch pretty closely to notice them. If I hadn't been searching for them, I probably wouldn't even have noticed. So it's nothing I would worry about, unless they are more pronounced for you.
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for me are pronunced with lover ligt
same here, especially for grey colors, i noticed this first in the application "Programm Manager" (German TV guide) at the home screen.
Hi guys im new here and i dont know if i posted this in right section but anyways, i wonder you guy noticed on nokia lumia when you set lock screen image then you lock your phone it tend to tint the image (make it dark? and the image lost shapness) anyone of you guys have the same problem if it a problem. Its quite annoying tbh.
Best regards Dom
raybands said:
Hi guys im new here and i dont know if i posted this in right section but anyways, i wonder you guy noticed on nokia lumia when you set lock screen image then you lock your phone it tend to tint the image (make it dark? and the image lost shapness) anyone of you guys have the same problem if it a problem. Its quite annoying tbh.
Best regards Dom
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It's normal. It darkens the image to make the white text (time, date, icons) readable on any picture. The same happens to xbox music artist backgrounds.
I've noticed it, but i deal with it since its for the sake of readability/sufficient contrast with the white time text.
thx guy for your answers
It has been reported - XDA, ZenTalk - by multiple Rog2 owners, that their displays show red discoloration under certain circumstances.
The two contributing factors seem to be screen refresh rate (higher freq -> more red tint) and brightness (lower brightness -> more red tint).
Steps to reproduce the issue:
1) Go to a dark room.
2) Add "Screen Frequency" toggle in the status bar, and lower the status bar to show the toggles;
3) Lower the brightness to 40%;
4) use the toggle to swap frequency from 60Hz, 90Hz and 120Hz.
If your unit is affected, the color of the dark grey areas on screen will increasingly shift toward red as you increase the refresh rate.
Is your phone showing these symptoms? Please share your experience by participating in the poll above.
Same here, hope its just SW issue and will be fix on future updates ?
Yep, I find it most annoying when i'm in a dark room and viewing images or talking over video whatsapp, the pics/vid colours are really dark and reddened, especially skin tones...
to all who answer the poll, pls take photos from the display with another phone and tell us their varriant
specially those who said no!
it seems like my phone doesnt have 40% brightness rofl.
it goes from 39 to 41.
but i dont have that issue with under 40% anyway..
Just a quick question, has anyone tried with an actual grey background? I get the same effect on the screen when the top bar is pulled down but if i look at a grey color palette i do not have this issue. I think its just a issue with the color overlay that asus has set on the top and bottom bar.
Yeah, the red tint is there under 30% brightness at 90 and 120hz, but not as intense as in the picture ?
Only noticeable with nightlight on for me. At lower than lowest brightness controlled by app.
I've only noticed it with the pull down quick menu. but TBH im 50% or above brightness anyways. You can tell the oled panel is red biased - something thats common in industry with oled manufacturers. Samsung went through a yellow and blue bias, Sony had a red tint issue.. Doesnt really phase me as the phone is otherwise sublime
Look, I am telling you, all the units have the same effect.
Those who voted no they are liers that are practising fanboyism or they don't have the phone at first place.
Anyway, if you cannot get along with that then I advise you to return it/sell it and get a device from another brand.
change Theme will help maybe other dark theme.
because white theme not that effect
if anybody vote No, I think they don't use dark theme with orange color.
Yeah there is no lottery here as all displays are affected. Just people in denial or people with the wrong settings who say they have no red tint
not sure if it's just me, but mine seems to have more red tint when the refresh rate is set to 90hz compared to 120, and no red tint at all in 60hz
Ccion said:
change Theme will help maybe other dark theme.
because white theme not that effect
if anybody vote No, I think they don't use dark theme with orange color.
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i dont have it. tried all. dark theme and white theme. Not getting any red tint.
weyrulez said:
i dont have it. tried all. dark theme and white theme. Not getting any red tint.
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Would you mind if you can take a screenshot with low and high brithness just to show how it looks as you saying you are not affected by the red tint would be greatly appreciated
ased10 said:
Would you mind if you can take a screenshot with low and high brithness just to show how it looks as you saying you are not affected by the red tint would be greatly appreciated
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Here it is.
weyrulez said:
Here it is.
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You have to take photos of your screen with another phone or camera.
Screenshots are grabbed directly from the frame buffer of the phone, i.e. they show what the phone intends to display, not what it actually looks like on screen.
So in my device its like this,
at 0-30% brightness with dark mode on
60hz - 40% red tint, 90hz - 10% red tint, 120hz - 30% red tint on grey backgrounds .
at 40% brightness and after the red tint goes away.
so weirdly there is less red tint in 90hz mode.
People who have affected devices, can you highlight which variant of ROG2 you have?
For me:
Tint : No
Variant : Tencent
P.s: i believe that the indian variant is mostly being reported to have this issue.
Thugsin313 said:
People who have affected devices, can you highlight which variant of ROG2 you have?
For me:
Tint : No
Variant : Tencent
P.s: i believe that the indian variant is mostly being reported to have this issue.
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Mine is indian variant and yes its being reported in mostly indian variants.