Patent ID: 9672767
Date: 2017-06-06
CPC Classifications: G09G

Claim:
1. An organic light emitting display device comprising: a display panel comprising a red sub-pixel, a green sub-pixel, a first blue sub-pixel, and a second blue sub-pixel each connected to one of a plurality of scan lines and one of a plurality of data lines; a scan driver configured to drive the plurality of scan lines; a data driver configured to receive a data signal and output a data output signal to a output terminal in response to the data signal; a de-multiplexer circuit configured to sequentially provide the data output signal to a first data line, a second data line, a third data line, and a fourth data line, respectively, to the red sub-pixel, the green sub-pixel, the first blue sub-pixel, and the second blue sub-pixel, in response to a red selection signal, a green selection signal, a blue selection signal, a first blue selection signal and a second blue selection signal; and a timing controller configured to provide the data signal to the data driver, control the scan driver, and output the selection signals in response to an image signal and a control signal, wherein the de-multiplexer circuit comprises: a first transistor connected between the output terminal of the data driver and the first data line and having a gate electrode connected to the red selection signal; a second transistor connected between the output terminal of the data driver and the second data line and having a gate electrode connected to the green selection signal; a third transistor connected between the output terminal of the data driver and a blue line and having a gate electrode connected to the blue selection signal; a fourth transistor connected between the blue line and the third data line and having a gate electrode connected to receive the first blue selection signal; and a fifth transistor connected to the blue line and the fourth data line and having a gate electrode connected to the second blue selection signal, wherein the timing controller simultaneously activates the blue selection signal and one of the first blue selection signal and the second blue selection signal.