Patent ID: 8400413
Filing Date: 2013-03-19
Classification: G06F

Abstract:
1. A display apparatus comprising: a display panel having a plurality of picture elements configured to execute lay by driving a liquid crystal layer; a backlight configured to illuminate a display surface of said display panel from a backside; a photodetector arranged on said plurality of picture elements and configured to receive a light entered from the side of said display surface of said display panel; a detection block configured to execute image recognition in the proximity of said display surface from a difference between a photodetection amount in said photodetector in a state where an illuminating light from said backlight is radiated from said display surface and a photodetection amount in said photodetector in a state where said illuminating light is blocked before said display surface; and a control block configured to execute a state where said illuminating light is radiated and a state where said illuminating light is blocked by driving said liquid crystal layer.