Patent ID: 7705811
Filing Date: 2010-04-27
Classification: G09G

Abstract:
1. A light emitting display device comprising: a display region including a pixel adapted to emit light in response to a data signal, a scan signal, and an emission control signal; a controller for controlling brightness of the display region; a scan driver for supplying the scan signal and for controlling a signal width of the emission control signal in accordance with a signal output from the controller; a data driver for supplying the data signal corresponding to video data, the data signal being corrected using a gamma correcting signal output from the controller; and a power source supply unit for supplying power to the display region, wherein the controller outputs the gamma correcting signal corresponding to peripheral light and controls an amount of current supplied to the display region in accordance with a sum of the video data in one frame, wherein the controller comprises a brightness controller for selecting a gamma correcting value in accordance with brightness of the peripheral light to control the data signal using the gamma correcting signal corresponding to the gamma correcting value; and an emission controller for controlling the amount of current supplied to the display region in accordance with the sum of the video data, and wherein the brightness controller comprises: