Lg Display Co., Ltd.

Sang Ho Yu

Jin Hyoung Kim

Jae Yong Park

Hee Dong Choi

Jong Woo Park

Kwang Jo Hwang

Seung Chan Byun

In Hwam Kim

An organic light emitting diode display for changing a data corresponding to an image property to prevent a deterioration of a life span of an organic light emitting diode device and to improve a picture quality, and a driving method thereof are disclosed. In the method, digital data of an input image of a screen are analyzed to analyze an accumulated density distribution for each gray scale range of an image which to be displayed on the screen. The digital data of the input image is modulated to lower a tilt of a gamma curve corresponding to a pre-set high gray scale range among gamma curves of the input image if data belonged to the high gray scale range turned out to be dominant according to the analyzed result. The digital data of the input image is modulated to raise a tilt of a gamma curve corresponding to a specific gray scale range among gamma curves of the input image if data belonged to the specific gray scale is determined as a dominant of the digital data of the input image according to the analyzed result. And the modulated digital data is converted into an analog signal.

Organic light emitting diode display and driving method thereof

An organic light emitting diode display device and a driving method are provided. The organic light emitting diode display device comprises a data driver that generates a plurality of reference data voltages that have a level proportional to a gray scale level of a digital data supplied from the timing controller. The data driver supplies the data voltages to the plurality of data lines and compensates for the data voltages in accordance with a magnitude of the feedback voltages from the plurality of pixels fed back through the plurality of feedback lines under control of the timing controller.

Organic light emitting diode display device and driving method thereof

Provided are an organic electroluminescence display device and method of fabricating the same. An organic electroluminescence display device according to the present invention includes a first substrate; a plurality of data lines arranged in a first direction on the first substrate; a plurality of gate lines arranged in a second direction on the first substrate; a plurality of pixel regions defined by the gate lines and the data lines, wherein a first pixel line is defined as a line of the pixel regions arranged in the first direction and a second pixel line is defined as a line of the pixel regions arranged in the second direction; a thin film transistor in each pixel region; a plurality of first connecting lines electrically connecting the thin film transistors of the first pixel lines with each other; and a second connecting line electrically connecting the thin film transistor of at least one of the second pixel lines.

Organic electroluminescence display device and method of fabricating the same

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Seongnam-si, South Korea

Sang Ho Yu