Lg Display Co., Ltd.

KiSu Park

Jeonghwan Kim

Juhnsuk Yoo

Joongsun Yoon

KiSul Cho

Mardin Kwon

Hyunhaeng Lee

SangKug Han

Disclosed are an organic light emitting display capable of preventing lowering of brightness and prolonging its a lifespan, and a driving method thereof. The organic light emitting display controls a level of a gate signal, by outputting a gate high voltage after controlling a level of the gate high voltage, according to a level of a threshold voltage sensed from each pixel of a display panel.

Organic light emitting display and driving method thereof

When using a flexible substrate to protect and support various components of an organic light emitting display device, among components including driving elements disposed on each of pixels of the organic light emitting display device, components where a high-level signal is applied during an emission period are grouped and are disposed on one side of the pixels. Further, components where a low-level signal is applied during the emission period are grouped and are disposed on the other side of the pixels. Accordingly, an electric field occurring due to a potential difference in the flexible substrate is minimized and shifting of a threshold voltage Vth of a thin-film transistor may be minimized. Thus, an OLED without an after-image can be provided.

Organic light emitting display device and method of driving the same

A gate driver and an organic light emitting diode (OLED) display including the gate driver are disclosed. The gate driver includes a shift register block including a plurality of cascade-connected shift registers, a selection block including a plurality of selection units, which are respectively connected to the plurality of shift registers, and a buffer block including a plurality of buffers, which are respectively connected to the plurality of selection units. Each of the shift registers outputs a scan pulse, whose a phase is shifted by one horizontal period, in response to a start voltage, a first clock, a second clock, and a third clock.

Gate driver and organic light emitting diode display including the same

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Gyeonggi-do, South Korea

KiSu Park