Samsung Display Co., Ltd.

Gun Woo Yang

Won Jun Lee

Hyun Young Choi

Ji Young Lee

Mee Hye Jung

Yong Woo Lee

Cheol Gon Lee

Gi Chang Lee

Il Joo Kim

Joong Gun Chong

Chol Ho Kim

Hae Ryeong Park

Tae Ho Kang

Dong Il Yoo

Won Gyun Kim

Yong Bin Kim

Choi Ho Kim

A pixel includes: a first transistor including a gate electrode connected to a first node, a first electrode connected to a first power line for receiving a first driving power voltage via a second node, and a second electrode connected to a third node; a light-emitting element including a first electrode connected to the third node, and a second electrode connected to a second power line; a second transistor connected between a data line and the second node, and including a gate electrode connected to a first scan line; and a third transistor connected between the first node and a third power line for receiving an initialization power voltage. The second transistor is set to a turn-on state during at least a portion of a turn-on period of the third transistor. The initialization power voltage is set to be lower than a data signal.

Pixel and display device including the same

A display device includes: a plurality of pixels connected to scan lines, emission control lines, data lines, and a power line; a scan driver configured to supply a scan signal to the scan lines; and an emission driver configured to supply an emission control signal to the emission control lines, wherein a voltage of a first power supplied to the power line during an inspection period has a pulse form alternating between a first level and a second level that is lower than the first level, and the display device is configured to maintain the voltage of the first power at a third level.

Display device and method of inspecting thereof

An organic light-emitting display device and a method of driving the same. The organic light-emitting display device is driven, with one frame being divided into a first period, a second period, a third period, and a fourth period, and includes pixels coupled to scan lines and data lines, a first power supply configured to supply first driving power, wherein the first driving power is set to a first voltage during the first period and the fourth period and a second voltage lower than the first voltage during the second period and the third period, a second power supply configured to supply second driving power. The second driving power is set to a third voltage during the first to third periods and to a fourth voltage lower than the third voltage during the fourth period.

Organic light-emitting display device and method of driving the same

A pixel capable of improving display quality may include an organic light emitting diode, a first transistor configured to control, in response to a voltage of a first node, current flowing from a first driving power source to a second driving power source via the organic light emitting diode, a second transistor coupled between the first node and a second electrode of the first transistor, and configured to be turned on when a scan signal is supplied to a scan line, a storage capacitor coupled between an initialization power source and the first node, a first capacitor coupled between the second electrode of the first transistor and a data line, and a second capacitor coupled between the first node and the second electrode of the first transistor. A display including such pixels also is disclosed.

Pixel and organic light emitting display device using the same

A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.

Liquid crystal display device

Growing community of inventors

Yongin-si, South Korea

Gun Woo Yang