Lg Display Co., Ltd.

Jongjin Lim

BuYeol Lee

Ryosuke Tani

SungGae Lee

An organic light emitting diode (OLED) display is discussed. The OLED display is capable of duty driving for controlling an emission duty of an OLED in one frame. One frame for the duty driving includes a programming period, an emission period, and a non-emission period. In the programming period, a first data voltage is applied to a gate node in response to a scan signal and a reference voltage is applied to a source node in response to a sensing signal. In the non-emission period, a second data voltage is applied to the gate node in response to the scan signal. The first data voltage corresponds to input video data to be applied to a first pixel. The second data voltage corresponds to input video data to be applied to a second pixel different from the first pixel.

Organic light emitting diode display and method of driving the same

The present invention relates to a liquid crystal display, wherein the liquid crystal display includes a POL conversion control signal generating unit for generating a POL conversion control signal that is inverted at predetermined time intervals in a black data insertion mode and is fixed at a specific logic level in a normal drive mode, a timing controller for outputting a first polarity control signal that is inverted every a predetermined period, a POL conversion circuit that receives the POL conversion control signal and the first polarity control signal to output a second polarity control signal, a data driving circuit that supplies a data voltage to data lines and inverts a polarity of the data voltage in response to the second polarity control signal, and a gate driving circuit that sequentially supplies a gate pulse to gate lines.

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Paju-si, South Korea

Jongjin Lim