SELECTION OF THE FOURTH PIXEL COLOR IN FULL-COLOR DISPLAY DEVICES

Abstract: a light-emitting diode (led) array comprises: a plurality of pixels, each of the pixels comprising respective groups of light emitting diodes (leds), the plurality of pixels comprising: a first set of pixels configured to emit a first red dominant wavelength; a second set of pixels configured to emit a first green dominant wavelength; a third set of pixels configured to emit a first blue dominant wavelength; the first red dominant wavelength, the first green dominant wavelength, and the first blue dominant wavelength defining a rgb (red-green-blue) gamut; and a fourth set of pixels configured to emit a non-white emission comprising a luminous efficacy that is higher than either of the first set of pixels or the third set of pixels to increase power efficiency of the device.

Inventor(s): Hisashi Masui, Johannes Willem Herman Sillevis Smitt, Mark Holmes, Mukul Agrawal

CPC Classification: H01L25/0753 (the devices being of a type provided for in group)

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