Patent ID: 9583044
Date: 2017-02-28
CPC Classifications: G09G

Claim:
1. An organic light emitting display device comprising: a display panel comprising red sub-pixels, green sub-pixels, first blue sub-pixels, and second blue sub-pixels, which are respectively connected to a plurality of scan lines and a plurality of data lines; a scan drive unit configured to sequentially applies a plurality of scan signals to the plurality of scan lines; a data drive unit configured to receive an image signal and output a plurality of data output signals; a demultiplexer configured to distribute the plurality of data signals to the data lines connected to the red sub-pixels, the green sub-pixels, and the first blue sub-pixels in response to a first blue drive selection signal, or distribute the plurality of data output signals to the data lines connected to the red sub-pixels, the green sub-pixels, the first blue sub-pixels, and the second blue sub-pixels in response to a mixed drive selection signal; and a control unit configured to process raw image data into an image signal and provide the image signal to the data drive unit, wherein the control unit is configured to detect image data belonging to a first color gamut and a second color gamut from the image data, determine a first blue drive area comprising the image data belonging to the first color gamut and a mixed drive area comprising the image data belonging to the second color gamut, provide the first blue drive selection signal to the demultiplexer when the data output signal corresponding to the first blue drive area is provided from the data drive unit to the demultiplexer, and provide the mixed drive selection signal to the demultiplexer when the data output signal corresponding to the mixed drive area is provided from the data drive unit to the demultiplexer.