Patent ID: 8049743
Filing Date: 2011-11-01
Classification: G09G,H04N

Abstract:
1. A display apparatus comprising: a camera portion comprising a dual-mode image sensor for generating a first detection signal by capturing an image of an object according to a first control signal in an image detection mode and for generating a second detection signal by detecting external illumination according to a second control signal in an illumination mode; a display for displaying an image signal of the image captured by the camera portion in the image detection mode; and a controller for outputting the first control signal to the camera portion in the image detection mode, and for outputting the second control signal to the camera portion in the illumination detection mode, and for controlling brightness of the display based on the second detection signal received from the camera portion representing the external illumination detected; wherein the image sensor includes a plurality of pixels having the same structure, each pixel comprising: a photodiode for generating a photocharge from incident light; a select transistor for outputting the first detection signal with a voltage corresponding to a voltage induced by the photocharge accumulated in a node region in the image detection mode; and a reset transistor for resetting a voltage of the node region to a reference voltage applied to a power supply terminal in the image detection mode and outputting the second detection signal having a voltage corresponding to the voltage of the node region through the power supply terminal in the illumination detection mode.