Patent ID: 8558829
Filing Date: 2013-10-15
Classification: G01R,G09G

Abstract:
1. An organic light emitting display (OLED) device, comprising: an estimated current calculation unit configured to determine an increase estimated current value having at least one increased gray level and a decrease estimated current value having at least one decreased gray level with respect to current flowing cross an element; a current measurement unit configured to measure the current flowing across the element to provide a measured current value; and a luminance adjustment unit configured to compare the values supplied from the estimated current calculation unit and the current measurement unit and increase the luminance when the value inputted through the estimated current calculation unit is high and decrease the luminance when the value inputted through the estimated current calculation unit is low, wherein the estimated current calculation unit comprises: wherein the red, green, and blue current adding units add up the current values during the at least one frame by using a synchronous signal supplied from a timing driving unit and outputs the increment and the decrement to the non-display interval, wherein the estimated current calculation unit further comprises: wherein the look-up table unit comprises: