Last week I attended the annual Technology Management Symposium at Downing College, Cambridge University. One of the hot topics was energy efficiency and there was a lot of talk surrounding OLED displays.

One of the keynote speakers explained how OLED displays can be incredibly efficient because to display black pixels requires minimal power. However, those benefits are currently lost when using the displays to browse the Internet. Because the default colour scheme is black text on a white background. (This site being a case in point.)

Which image uses the least energy?

Will we one day see promotions encouraging the use of black backgrounds for web sites? (I may start an experiment…) And will it also mean the return of the green text? People really will start claiming the arrival of cloud computing marked the return of the mainframe 🙂


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