Patent ID: 7348946
Filing Date: 2008-03-25
Classification: G06F,G09G

Abstract:
1. A digital image display system, comprising: a plurality of Light Emitting Diodes (LEDs) forming a display panel for displaying a digital image, at least some of the LEDs of the display panel capable of sensing light when in a sense mode and emitting light to create a portion of the digital image when in an emit mode; a driving circuit to drive at least some of the LEDs; a sensing circuit to sense light rcceived at some of the LEDs; a switch coupled with the driving circuit, sensing circuit and some of the LEDs, to switch some of the LEDs from the sense mode to the emit mode; and a feedback controller coupled with the sensing and driving circuits, the feedback controller to adjust the brightness of an LED in response to the amount of light sensed by that LED; wherein: