Which of the two is more energy efficient on a OLED Display?
- White text on a black background
- Black text on a white background
Links to OLED vs LCD, efficiency wise, would also be appreciated.
OLED displays only emit light on each pixel if it is needed, so a black background would require minimal energy. However, at least one person has reported that his Samsung TFT monitor draws 40W whether it is on or off, which he believes is due to the power transformer that it uses. So energy saving might not occur due to device limitations.
The article OLED TV vs. LCD TV compares the two in great detail and does a very good job of explaining why one technology is better on multiple aspects. This is what it says about energy: