Patent ID: 9171498
Filing Date: 2015-10-27
Classification: G09G

Abstract:
1. An organic light emitting diode display device comprising: a display panel in which data lines and gate lines intersect each other; an image processing circuit converting first digital image data including a plurality of color digital data into either second digital image data including the plurality of color digital data and first white digital data or third digital image data including a plurality of color conversion digital data that converts the plurality of color digital data and a second white digital data according to whether the first digital image data is included in a first gray scale region or a second gray scale region which is higher than the first gray scale region, wherein the image processing circuit includes: a representative value calculating unit calculating a representative value by analyzing the first digital image data, a gray scale region determining unit determining whether the representative value is included in the first gray scale region or the second gray scale region, and a white digital data calculating unit allocating a minimum gray scale value to the first white digital data when the representative value is included in the first gray scale region, and calculating the second white digital data using the plurality of color digital data when the representative value is included in the second gray scale region; a data driving circuit converting the second digital image data or the third digital image data into data voltages and supplying the data voltages to the data lines of the display panel; and a gate driving circuit sequentially supplying gate pulses synchronized with the data voltages to the gate lines.