Patent ID: 7333080
Filing Date: 2008-02-19
Classification: G09G

Abstract:
1. A color OLED display device, comprising: a) an array of light emitting pixels, each pixel having red, green, and blue OLEDs and at least one additional colored OLED that expands the gamut of the display device relative to the gamut defined by the red, green and blue OLEDs, wherein the luminance efficiency or the luminance stability over time of the additional OLED is higher than the luminance efficiency or the luminance stability over time of at least one of the red, green, and blue OLEDs; and b) means for selectively driving the OLEDs with a drive signal to reduce overall power usage or extend the lifetime of the display while maintaining display color accuracy, wherein the means for driving further comprises means for trading off power usage for display lifetime.