Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Kyungpook National University Industry-Academic Cooperation Foundation

Young-In Hwang

Baek-Woon Lee

Seong Min Wang

Yong Ho Yang

Yong-Sung Park

Sung Ho Kim

Young-Jin Cho

Jung-Mi Choi

Hae-Yeon Lee

Chul-Kyu Kang

Ji-Hye Kong

Dong-Gyu Kim

Seong-Il Park

Eung Taek Kim

Deok-Young Choi

In-Ho Choi

Eungtaek Kim

Seongbaik Chu

Yong Su Lee

Yong-Jae Kim

Tak-Young Lee

Seongmin Wang

Jae Seob Lee

Gyoo Chul Jo

Ji-Su Na

Jong-Hyuk Lee

Young-Woo Song

Jae-Hoon Lee

Bo-Yong Chung

Ji-Young Kim

Yong Jae Kim

Keum-Nam Kim

Young Jin Cho

Jae-Heung Ha

Kyu-Hwan Hwang

Seok-Gyu Yoon

Chul Kyu Kang

Dong-Kyu Kim

Jeong-Soo Lee

Jina Lee

Sungwook Kim

Youngwoo Park

Jin-Goo Kang

Joo Hyeon Jo

Elly Gil

Hyo-Seok Kim

Joohyeon Jo

Seong Baik Chu

So-Young Kang

Young-Gu Ju

Dong-Bum Lee

Min-Woo Byun

Lee Hae-Yeon

Wan-soon Im

Hea-Min Jung

A display device includes a light-emitting element, a driving element to apply a driving current, a 1-1 switching element including a first electrode connected to a gate electrode of the driving element, a gate electrode, and a second electrode connected to a first intermediate node, a 1-2 switching element including a first electrode connected to the first intermediate node, a gate electrode, and a second electrode connected to a second electrode of the driving element, a 2-1 switching element including a first electrode connected to a second intermediate node, a gate electrode, and a second electrode connected to the gate electrode of the driving element, a 2-2 switching element including a first electrode, a gate electrode, and a second electrode connected to the second intermediate node, and a capacitor including a first electrode to receive a power voltage, and a second electrode connected to the first and second intermediate nodes.

Display device having capacitor including intermediate area

A pixel includes: an organic light emitting diode; a first transistor including a gate that is connected to a first node, wherein the first transistor is connected between a second node and a third node; a second transistor including a gate that is connected to a corresponding scan line, wherein the second transistor is connected between a data line and the second node; a storage capacitor connected between the first node and a first voltage; a third transistor including a gate that is connected to the corresponding scan line, the third transistor is connected between the first node and the third node; and a fourth transistor connected between a first end of the first transistor and a second voltage.

Pixel preventing leakage current and display device using the same

An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a first gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.

Organic light emitting diode display device including driving transistor having overlapping layer between semiconductor layer and substrate

Provided is an organic light-emitting display apparatus and a method of repairing the same. The organic light-emitting display apparatus includes: an emission device comprising a plurality of sub-emission devices; an emission pixel circuit configured to supply a driving current to the emission device; a dummy pixel circuit configured to supply the driving current to the emission device; and a repair line coupling the emission device to the dummy pixel circuit, wherein the emission device is configured to receive the driving current from the emission pixel circuit or the dummy pixel circuit.

Organic light-emitting display apparatus and method of repairing the same

An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a fist gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.

Organic light emitting diode display device including driving transistor having gate electrode under semiconductor layer

An organic light emitting display device includes a substrate, a light emitting diode, a first transistor controlling a driving current of the light emitting diode, a second transistor including a second drain electrode connected to a first source electrode of the first transistor, a second gate electrode, a second channel overlapped with the second gate electrode when viewed in a plan view, a second source electrode facing the second drain electrode with the second channel interposed therebetween, and a lower gate electrode, and a plurality of driving voltage lines transmitting a first driving voltage. The lower gate electrode of the second transistor is overlapped with the second channel when viewed in a plan view, and the lower gate electrode is electrically connected to a corresponding driving voltage line among the driving voltage lines.

Organic light emitting display device

A display panel may include a first OLED disposed in a first sub-pixel region and emitting light of a first color, a second OLED disposed in a second sub-pixel region and emitting light of a second color, a third OLED disposed in a third sub-pixel region and emitting light of a third color, a fourth OLED disposed in a fourth sub-pixel region and emitting light of the second color, a first sub-pixel circuit disposed in the first sub-pixel region and driving the third OLED in the third sub-pixel region, a second sub-pixel circuit disposed in the second sub-pixel region and driving the first OLED in the first sub-pixel region, a third sub-pixel circuit disposed in the third sub-pixel region and driving the fourth OLED in the fourth sub-pixel region, and a fourth sub-pixel circuit disposed in the fourth sub-pixel region and driving the second OLED in the second sub-pixel region.

Display panel of an organic light emitting diode display device having a pentile pixel structure

A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.

Organic light emitting diode display device

Organic light emitting diode display device including driving transistor having bottom electrode between semiconductor layer and substrate

An organic light emitting display is capable of reducing variation in power transmitted to pixels to reduce or prevent non-uniformity of brightness from being generated. The organic light emitting display includes a pixel including a red sub pixel, a green sub pixel, and a blue sub pixel and first pixel power source lines for supplying a first pixel power from a first pixel power source to the red sub pixel, the green sub pixel, and the blue sub pixel, wherein the first pixel power source lines coupled to at least two different color sub pixels of the red, green and blue sub pixels have different widths. The first pixel power source lines have widths that may correspond to a voltage drop of the first pixel power source or may correspond to deterioration of the respective sub pixels to which they are coupled.

Organic light emitting display

Growing community of inventors

Yongin, South Korea

Young-In Hwang