theBauer

What's better for battery - black or white?

I use the Kindle app a lot. Is it better for battery to have a black or white background? Or does it not make a difference?!

Add a comment
7 comments

matt101101 / MOD  Jun. 25, 2012 at 10:21

Black on OLED.
Irrelevant (I think) on LCD.

JanSt / MOD  Jun. 25, 2012 at 10:36

No proof, but I strongly believe Black on White on a Kindle eInk reader is better. No big difference, but better

matt101101 / MOD  Jun. 25, 2012 at 12:53

No proof, but I strongly believe Black on White on a Kindle eInk reader is better. No big difference, but better
I'd agree with that, from the limited use I've had of the Amazon Kindle.

CTPAHHIK  Jun. 25, 2012 at 13:03

White is better for LCD display.

matt101101 / MOD  Jun. 25, 2012 at 13:06

White is better for LCD display.
Cheers, I didn't know which was better in all honesty. I'm not a big LCD person, it's mainly OLED technologies for small screens and Plasma for big screens in my house :p.

CTPAHHIK  Jun. 25, 2012 at 13:12

Usually back light is constant on LCD/LED. To get black you need to arrange light gates horizontally to block back light = back light + energy to keep light blocked. New technologies vary back light for color adjustment, so watching a movie uses less energy than white or black background. Don't think any of this applies to phones. Only OLED does not have back light at all.
Don't remember how plasma works.

matt101101 / MOD  Jun. 25, 2012 at 13:23

I knew OLED (and variants thereof) have no backlight at all and I knew LCD (and variants thereof) blocked the back light, I didn't realise (somewhat stupidly) that it took energy to block the back light on an LCD display.

I've had a look on Google and I can't find why plasma TVs have better black levels, just that they do.

Email:

You don't need an account to comment. Just enter your email address. We'll keep it private.

Comment: