App developers harness OLED to prolong battery life

The inverted apps display a high proportion of black, therefore using less power.

Savvy app developers have created a new way to use the OLED display on Google's Android smartphones to their advantage.

A developer, known only as rujelus22@XDA, has designed an inverted set of apps, offering white text on a black background, rather than vice versa.

OLED displays offer a truer black as they work by switching off individual pixel cells as instructed, thereby using less power.

The new inverted apps hope to help users to conserve battery life by displaying a greater level of black.

Google Android's usual theme is black on white, which while perhaps easier on the eye, also uses much more power.

The current collection of apps using the inverted colour theme includes Gmail, Google Search, Android Marketplace, Google Talk, Music player and Google Plus apps and more are planned for the future.

Researchers from the University of Cambridge are also looking to harness the wasted light from OLED displays to extend battery life.

Just 36 per cent of the light from OLED screens is projected through the front, so small solar cells have been fitted around the screen to capture some of the remainder, ieee Spectrum reported.

Posted on 02/02/2012 in OLED.

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