Samsung Display Co., Ltd.

Ji-Hye Kong

Young-In Hwang

Yong-Sung Park

In-Ho Choi

Chul-Kyu Kang

Ji-Su Na

Jae-Hoon Lee

Young-Jin Cho

Yong-Jae Kim

Tak-Young Lee

Wang-Jo Lee

Sung-Jae Moon

So-Young Kang

Dong-Bum Lee

Min-Woo Byun

Hea-Min Jung

A scan driver includes scan signal outputting circuits, at least one of the scan signal outputting circuits includes a driving circuit and a buffer circuit. The driving circuit includes driving transistors. The driving circuit provides first and second driving signals to first and second driving nodes, respectively by turning on or off the driving transistors in response to clock signals and a scan input signal. The buffer circuit includes buffer transistors. The buffer circuit outputs a scan signal at an output node by turning on or off the buffer transistors in response to the first and second driving signals. The at least one of the scan signal outputting circuits performs a back-biasing voltage applying operation on at least one of the driving transistors and the buffer transistors when the driving transistors and the buffer transistors are turned on or off.

Scan driver and a display device including the same

A scan driver is integrated to include multiple drivers in a peripheral area of a display. The drivers output gate, emission, and/or other signals for driving pixel circuits in the display based on one or more clock signals.

Scan driver and display apparatus having the same

An organic light emitting display device includes a pixel unit and a driving unit. The pixel unit includes at least one pixel and the driving unit is configured to drive the pixel unit. The at least one pixel includes a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, a first capacitor, a second capacitor, an organic light emitting diode, a third capacitor, and a driving transistor.

Organic light emitting display device with increased luminance uniformity

An organic light emitting display device includes pixels. Each of the pixels includes an organic light emitting diode. The organic light emitting diode does not emit light during a first period where a voltage having a first level voltage is applied to the first voltage supply line, and the organic light emitting diode emits light during a second period where a second level voltage is applied to the first voltage supply line.

Organic light emitting display device and driving method thereof

A pixel, a display device including a plurality of pixels, and a method of driving the display device. The display device includes: an emission pixel comprising an emission device, the emission pixel being in a display area; a dummy pixel in a non-display area outside the display area; and a repair line that is connectable to the emission device of the emission pixel and the dummy pixel, wherein the dummy pixel includes: a first dummy driver for receiving a same data signal as the data signal applied to the emission pixel for each of a plurality of subfields of one frame and controlling emission of the emission device of the emission pixel via the repair line; and a second dummy driver for resetting the repair line in one of the subfields in which the emission device does not emit light.

Pixel, display device including the pixel, and method of driving the display device

An organic light-emitting display apparatus includes: a power voltage generation unit configured to generate a first power voltage and a dummy power voltage having a different level from that of the first power voltage; a power voltage wiring network to which the first power voltage is applied; a dummy power voltage line to which the dummy power voltage is applied; a plurality of pixels each comprising an emission device and a pixel circuit electrically coupled to the power voltage wiring network; a plurality of dummy pixels each comprising a dummy circuit connectable to the dummy power voltage line; and a plurality of repair lines each connectable to the dummy circuit of a corresponding dummy pixel among the plurality of dummy pixels and to the emission devices of corresponding pixels among the plurality of pixels.

Organic light-emitting display apparatus

An organic light-emitting diode display is disclosed. In one aspect, the display includes a display panel including pixels and having first and second end portions opposing each other, and a center portion therebetween. First and second power supply voltage lines extend from the first end portions to the second end portions. A third power supply voltage line having first and second ends are respectively formed in the first and center portions. A fourth power supply voltage line has first and second ends respectively formed in the first and second end portions. A power supply unit is formed adjacent to the first end portion and configured to apply a first power supply voltage to the first ends of the first and second power supply voltage lines and a second power supply voltage to the first end of the third power supply voltage line.

Growing community of inventors

Seongnam-si, South Korea

Ji-Hye Kong