Patent ID: 7741770
Filing Date: 2010-06-22
Classification: H01L

Abstract:
1. A light-emitting microcavity diode device, comprising: a) a reflective electrode and a semi-transparent electrode formed over a substrate with an unpatterned light-emitting layer formed between the reflective electrode and the semi-transparent electrode, the reflective electrode, semi-transparent electrode, and unpatterned light-emitting layer forming an optical cavity, and wherein either the reflective or semi-transparent electrode is patterned to form a plurality of independently-controllable, light-emitting sub-pixels, and wherein at least one, and fewer than all, of the sub-pixels emits light through a color filter; b) a first sub-pixel emits light having a first primary color and a second sub-pixel emits a light of a complementary color with respect to the first primary color, the light from the first and second sub-pixels changing at one or more different angles and wherein the color of the combined light of the first and second sub-pixels changes less at the one or more different angles than the light from at least one of the first or second sub-pixels; c) a third sub-pixel emitting light of a second primary color different from the first primary color and wherein the third sub-pixel emits light through a color filter; d) a fourth sub-pixel emitting light of a third primary color different from the first and second primary colors; e) wherein the second sub-pixel has a higher luminous efficiency than either of the third or fourth sub-pixels; and f) a controller for receiving information signals, processing the signals to form a converted signal suitable for the display device and driving the display device to display the converted signal, wherein the controller calculates the neutral component of the information signals and applies the first and second subpixels to form the neutral component of the information signal.