Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Industry-university Cooperation Foundation Hanyang University

Iucf-hyu

Bo Yong Chung

Oh Kyong Kwon

Do Hyung Ryu

Dong Woo Kim

Chong Chul Chai

Hai Jung In

Dong Gyu Kim

Kyoung Ju Shin

Yang Hwa Choi

Hong Kwon Kim

Chong Chui Chai

Tak Young Lee

An Su Lee

Jong Hee Kim

Chang-Soo Lee

Jun Hyun Park

Kang Moon Jo

Young Wan Seo

Sang Uk Lim

Dongwoo Kim

Yang Wan Kim

Sang Moo Choi

Yong-Jae Kim

Tak-young Lee

Hai-Jung In

Hae-Yeon Lee

Yong Sung Park

Jung Hwan Hwang

Hyung Soo Kim

Jung Bae Kim

Yoo Mi Ra

Kyong Hwan Oh

Geun Ho Lee

Yeon Kyung Kim

Wang Jo Lee

Yeonkyung Kim

Kyung-ho Park

Doo-young Lee

Nack Hyeon Keum

A scan driver includes a first transistor including gate, first, and second electrodes coupled to a Q node, a scan clock line, and a scan line. A second transistor includes gate and first electrodes coupled to a scan carry line, and a second electrode coupled to the Q node. A third transistor includes gate and first electrodes coupled to a first control line and a sensing carry line. A fourth transistor includes a gate and first electrode coupled to the sensing carry line and the third transistor first electrode. A fifth transistor includes gate, first, and second electrodes coupled to a fourth transistor second electrode, a second control line, and a node. A capacitor includes first and second electrodes coupled to the fifth transistor first and gate electrodes. A sixth transistor includes gate, first, and second electrodes coupled to a third control line, the node, and the Q node.

Scan driver

A pixel includes a plurality of transistors, a storage capacitor, and an organic light emitting diode. A first transistor controls the amount of current from a first driving power source to the organic light emitting diode based on a data voltage. A second transistor is connected to a data line and is turned on based on a scan signal. A third transistor coupled to the first transistor and is turned on based on the scan signal. A first stabilizing transistor is coupled to the third transistor or between the first and third transistors and is turned off when the third transistor is turned off.

Pixel and organic light emitting display device having the pixel

A light emitting display device including: a first pixel including a first lower storage electrode, a first gate electrode of a first driving transistor, and a first upper storage electrode; and a second pixel provided near the first pixel, and including a second lower storage electrode, a second gate electrode of a second driving transistor, and a second upper storage electrode. In a plan view, the first gate electrode and the second gate electrode have first sides facing each other, the first side of the first gate electrode is positioned inside a border of the first lower storage electrode or the first upper storage electrode in a plan view, and the first side of the second gate electrode is positioned inside a border of the second lower storage electrode or the second upper storage electrode in a plan view.

Light emitting display device having reduced interference between adjacent pixels

A light emitting display device including a first pixel including a first driving transistor, a first input transistor, a first initialization transistor, a first storage capacitor, and a first light emitting diode (LED); and a second pixel including a second driving transistor, a second input transistor, a second initialization transistor, a second storage capacitor, and a second light emitting diode (LED. The first pixel further includes a first gate electrode connecting member connecting a first gate electrode of the first driving transistor and the first input transistor; the second pixel further includes a second gate electrode connecting member connecting a second gate electrode of the second driving transistor and the second input transistor; the first light emitting diode (LED) includes a first anode; the second light emitting diode (LED) includes a second anode; and the first gate electrode connecting member does not overlap the second anode in a plan view.

A scan driver including a plurality of scan stages. A first scan stage among the plurality of scan stages includes first-to-sixth transistors and a first capacitor. The first transistor is connected to a first Q node, a first scan clock line, and a first scan line. A second transistor is connected to a first scan carry line and the first Q node. A third transistor is connected to a first sensing carry line and a second sensing carry line. A fourth transistor is connected to a first control line and the third transistor. A fifth transistor is connected to the fourth transistor, a second control line, and a first node. A first capacitor is connected to the fifth transistor. A sixth transistor is connected to a third control line, the first node, and the first Q node.

An organic light emitting display device includes pixels, a sensor configured to extract at least one of deviation information of first transistors of the pixels and deterioration information of OLEDs of the pixels in a sensing period, and a converter configured to change a bit of first data input from the outside by using at least one of the deviation information and the deterioration information, and to generate second data, wherein a pixel at an ith horizontal line includes an OLED, a first transistor configured to control an amount of a current that flows from a first power source via the OLED in response to a voltage of a first node, second and third transistors configured to turn on when a scan signal is supplied to an ith scan line, and a fourth transistor configured to turn on when a control signal is supplied to an ith control line.

Organic light emitting display device including data driver and compensator

A pixel circuit includes a first switching element including a control electrode connected to a first node, an input electrode which receives a first power voltage and an output electrode connected to a third node, a second switching element including a control electrode which receives a compensation gate signal, an input electrode connected to a second node and an output electrode connected to the third node, a third switching element including a control electrode which receives a write gate signal, an input electrode connected to the first node and an output electrode connected to the second node, a storage capacitor including a first electrode which receives an initialization voltage and a second electrode connected to the first node, a program capacitor which receives a data voltage and connected to the second node, and an organic light emitting element connected to the third node and which receives a second power voltage.

Pixel circuit and display apparatus having the same

A stage and a scan driver having the same. The stage outputs a scan signal and a sensing signal to a scan line and a sensing line, respectively. The stage includes a first controller configured to control a voltage of a sensing node and a driving node based on first to third control signals and a carry signal of the stage and another stage connected to the stage, a second controller configured to control a voltage of an inversion driving node based on a first carry clock signal, the voltage of the driving node, and the third control signal, and a first output buffer configured to output a second carry clock signal or a second low potential power as the carry signal in correspondence with the voltage of the driving node and the inversion driving node.

Stage with multiple output buffers and scan driver having the same

A scan driver for a display device includes a plurality of stages outputting scan signals. A first stage of the plurality of stages includes first to sixth transistors connected to a first carry clock line, a carry line, a previous carry line, and a second carry clock line. In a first frame period, the second carry clock line is configured to receive a second carry clock signal having at least one pulse with substantially the same phase as at least one of first pulses of a first carry clock signal to be applied to the first carry clock line.

Scan driver and display device including ihe same

Organic light emitting display device utilizing compensator to improve display quality

Growing community of inventors

Yongin-si, South Korea

Bo Yong Chung