Samsung Display Co., Ltd.

Kwi Hyun Kim

Sang Yong No

Dong Woo Kim

Ji Yeon Choi

Hwa Rang Lee

Yeon Kyung Kim

Kook Hyun Choi

Kyung Won Park

Woo Gun Kang

Se Hyun Lee

Young Goo Song

Byoung Sun Na

Jin Joo Ha

Seung Soo Baek

Tae Ho Kang

Gwon-Heon Ryu

Jin Su Lee

Chong Chul Chai

Jae-Ho Choi

Do Yeong Park

Wan-Soon Im

Youn Hak Jeong

Yoon-Jang Kim

Young-Goo Song

Yun Seok Lee

Jong Woong Chang

Won Jun Lee

Seung-hwan Kim

Jae-Jin Song

Jae-Yong Shin

Jang Soo Kim

Si Hyun Ahn

Noboru Takeuchi

Joon Hoo Choi

Kyungwon Park

Sung Ryul Kim

Hyeong Jun Jin

Chang-Yong Hong

A display device includes a light-emitting element; a first transistor connected between a driving voltage line and an anode electrode of the light-emitting element; a second transistor connected between a data line and a gate electrode of the first transistor; a third transistor connected between a source electrode of the first transistor and the driving voltage line; a fourth transistor connected between a drain electrode of the first transistor and an initialization voltage line; and a first capacitor connected between the gate electrode of the first transistor and a gate electrode of the fourth transistor.

Display device minimizing effect of light-emitting element

A pixel includes: a first transistor including a first electrode connected to a first node, a second electrode connected to a second node, and a gate electrode connected to a third node; a second transistor connected between a data line and the second node, the second transistor including a gate electrode electrically connected to a first scan line; a third transistor connected between a first power line to which a voltage of a first driving power source is supplied and the first node, the third transistor including a gate electrode electrically connected to an emission control line; a first capacitor connected between the first node and the third node; a second capacitor connected between the second node and the third node; and a light emitting element connected between the second node and a second power line to which a voltage of a second driving power source is supplied.

Pixel and display device including the same

A sub-pixel includes a light emitting element, a first transistor that applies a driving current to the light emitting element, a second transistor that writes a data voltage in response to a write gate signal, a first capacitor electrically connected to a control electrode of the first transistor, a second capacitor including a first electrode electrically connected to the second transistor and a second electrode electrically connected to the control electrode of the first transistor, a third transistor that diode-connects the first transistor in response to a compensation gate signal, a fourth transistor that applies a first initialization voltage to a first electrode of the third transistor in response to an initialization gate signal, and a fifth transistor that transfers the driving current to the light emitting element in response to an emission signal.

Sub-pixel having a reduced area by minimizing components and display device having the same

A display device includes a base layer including a display area and a non-display area, an emission unit including a first electrode electrically connected to a first driving power source, a second electrode electrically connected to a second driving power source, and a light-emitting element disposed between first and second electrodes, a first transistor including a first terminal electrically connected to the first driving power source, a second terminal electrically connected to the first electrode of the emission unit, and a gate electrode electrically connected to a first node, a second transistor including a first terminal electrically connected to a data line, a second terminal electrically connected to the first node, and a gate electrode electrically connected to a scan line, and an electrostatic discharge circuit disposed in the display area and disposed between the first driving power source and the data line.

Display device

The present disclosure relates to a display device, and more particularly, to a display device capable of improving image quality and a method for driving the same. The display device includes a data line; a driving transistor connected to the data line through a first node; a pixel electrode connected to the driving transistor; and an initialization transistor connected between the data line and the pixel electrode, wherein one of a source electrode or a drain electrode of the initialization transistor is directly connected to the data line, and an other one of the source electrode or the drain electrode of the initialization transistor is directly connected to the pixel electrode.

Display device and method for driving the same

A pixel includes a first transistor including a first electrode electrically connected to a first power line, a second electrode, and a gate electrode connected to a first node, a light emitting element including a first electrode, and a second electrode electrically connected to a second power line, a second transistor connected between a data line and a second node, and including a gate electrode electrically connected to a first scan line, a third transistor connected between the second node and the first electrode of the light emitting element, and including a gate electrode electrically connected to a second scan line, a first capacitor connected between the first power line and the first node, and a second capacitor connected between the first node and the second node.

Pixel capable of compensating for threshold voltage of driving transistor and display device including the same

A pixel includes a light emitting element, a first transistor having a first electrode connected to a first power line via a first node, a second electrode connected to a second power line via a second node and the light emitting element, and a gate electrode connected to a third node, a second transistor connected between a data line and the third node, and having a gate electrode connected to a first scan line, a third transistor connected between the first power line and the first node, and having a gate electrode connected to an emission control line, and a fourth transistor connected between the second node and a third power line. The second transistor is turned on after the fourth transistor is turned on and maintains a turn-on state during a predetermined period, and is turned off before the fourth transistor is turned off.

Pixel including first through fourth transistors and display device including the same

A display device includes: a display area and a non-display area; a first pixel area and a second pixel area, each provided in the display area; scan lines extending in a first direction and disposed in the first pixel area and the second pixel area; first sub-scan lines extending in a second direction and disposed in the first pixel area, the second direction intersecting the first direction; second sub-scan lines extending in the second direction and disposed in the first pixel area and the second pixel area; and a pad part provided in the non-display area, the pad part being electrically connected to the first sub-scan lines and the second sub-scan lines. The scan lines are electrically connected to at least one of the first sub-scan lines and the second sub-scan lines. The first sub-scan lines do not overlap the second pixel area in a plan view.

A pixel includes a light emitting element, a first transistor including an electrode connected to a first power source line via a first node, another electrode connected to a second power source line via a second node and the light emitting element, and another electrode connected to a third node. The pixel further includes a second transistor connected between a data line and the second node and having a gate electrode connected to a scan line, a third transistor connected between the first node and the third node and having a gate electrode connected to the scan line, a fourth transistor connected between the first power source line and the first node and having a gate electrode connected to an emission control line, a first capacitor connected between the second node and the third node, and a second capacitor connected between a third power source line and the third node.

Provided herein may be a pixel. The pixel may include a driving transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power line, and a second electrode coupled to a second node, a control transistor including a gate electrode coupled to the first node, a first electrode coupled to the second node, and a second electrode that is different from the first electrode, a first emission unit including at least one light-emitting element coupled between the second electrode of the control transistor and a second power line, and a second emission unit including at least one light-emitting element coupled between the second node and the second power line, wherein the second electrode of the control transistor is coupled to a first electrode of the first emission unit.

A display device according to an embodiment of the present inventive concept includes: a substrate including a first region and a second region; and a plurality of pixels disposed on the substrate, wherein the plurality of pixels each include a first data line and a second data line overlapping a pixel electrode, a first capacitance between the first data line and the pixel electrode is smaller than a second capacitance between the second data line and the pixel electrode in a pixel disposed in the first region, and the first capacitance between the first data line and the pixel electrode is larger than the second capacitance between the second data line and a pixel electrode in the pixel disposed in the second region.

Provided is a tiled display. The tiled display includes: a first display device including a first display area including pixels, a second display device including a second display area including pixels adjacent to the first display area, and a seam between the first display area and the second display area. Each of the first display device and the second display device includes: a first base part supporting a respective one of the first display device and the second display device, a thin-film transistor layer on the first base part, the thin-film transistor layer including thin-film transistors included in the pixels and including connection lines in the seam, and bridge electrodes in the seam to couple between the connection lines of the first display device and the second display device.

Tiled display

A display device, includes: pixels at a display area; gate lines at the display area, and connected to the pixels; carry clock lines and scan clock lines at the display area; and a gate driving circuit distributedly located at the display area, and connected to the carry clock lines, the scan clock lines, and the gate lines. The gate driving circuit includes a plurality of stages, each of the stages to output, as a carry signal, a carry clock signal supplied through a corresponding carry clock line from among the carry clock lines, and to output, as a scan signal, a scan clock signal supplied through a corresponding scan clock line from among the scan clock lines. The corresponding carry clock line and the corresponding scan clock line corresponding to one stage from among the stages are spaced from each other with at least one of the pixels interposed therebetween.

Display device having gate driving circuit stages located between pixels in the display area

A display device includes a data driver that outputs a first data signal and a second data signal of different voltages, and a pixel that emits light in response to the first data signal and the second data signal. The pixel includes a current generator generating a driving current corresponding to the first data signal, a first light emitting part including a first electrode, a second electrode, and a first light emitting element, a second light emitting part including a third electrode, a fourth electrode connected, and a second light emitting element, and a current controller controlling a divided current supplied to the second light emitting part in response to the second data signal.

Growing community of inventors

Yongin-si, South Korea

Kwi Hyun Kim