Patent ID: 9135862
Filing Date: 2015-09-15
Classification: G09G

Abstract:
1. An organic light emitting display device comprising: a display panel including a plurality of pixels, wherein each pixel has a driving transistor for operating a light emitting device so as to make the light emitting device emit light with a data current corresponding to a data voltage; a panel driver for detecting characteristics of the driving transistor included in each pixel including at least one of mobility and threshold voltage of the driving transistor during a time period when there exists no user around the display panel, generating compensated input data by compensating input data according to the characteristics after the detection of the characteristics of the driving transistor included in each pixel is completed, and generating the data voltage through the use of the compensated input data; and a sensor for sensing whether or not there exists a user around the display panel, and supplying the sensing result to the panel driver, wherein the panel driver converts luminance values of pixels included in each horizontal line into frequency components, determines a highest frequency component as a representative frequency value for each horizontal line, and sequentially determines a detection order to detect the characteristics of driving transistor from the horizontal line with the high representative frequency value to the horizontal line with the low representative frequency value.