公开(公告)号：US20230029637A1

公开(公告)日：2023-02-02

申请号：US17967397

申请日：2022-10-17

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hyun KA ,  Han Sung BAE ,  Won Kyu KWAK

IPC: H01L27/32 ,  H01L27/12 ,  G09G3/3233

Abstract: A pixel includes a pixel circuit and an organic light emitting diode. The pixel circuit has first, second, third, and fourth transistors. The first transistor controls an amount of current flowing from a first driving power supply coupled to a first node to a second driving power supply through the organic light emitting diode. The turns on when a scan signal is supplied to a first scan line. The third transistor turns on when a scan signal is supplied to a second scan line. The fourth transistor turns on when a scan signal is supplied to a third scan line. The first transistor is a p-type Low Temperature Poly-Silicon thin film transistor and the third transistor and the fourth transistor are n-type oxide semiconductor thin film transistors.

公开(公告)号：US20220392994A1

公开(公告)日：2022-12-08

申请号：US17891910

申请日：2022-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hoon KIM ,  Won Kyu KWAK

IPC: H01L27/32 ,  G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display device may include a substrate, pixels, a first common voltage line, an outer common voltage trunk line, a first outer common voltage line, and a second outer common voltage line. The substrate may include a display area and a non-display area. The pixels may be disposed on the display area. The first common voltage line may be at least partially disposed on the display area. The outer common voltage trunk line may be disposed on the non-display area, may be electrically connected through the first common voltage line to the pixels, and may include a groove. The first outer common voltage line may protrude from the outer common voltage trunk line. The second outer common voltage line may protrude from the outer common voltage trunk line. The groove may be disposed between the second outer common voltage line and the first common voltage line.

公开(公告)号：US20220284859A1

公开(公告)日：2022-09-08

申请号：US17827520

申请日：2022-05-27

Applicant: Samsung Display Co., Ltd.

Inventor： Kwang-Min KIM ,  Seung-Kyu LEE ,  Won Kyu KWAK

IPC: G09G3/3258 ,  G09G3/00

Abstract: A display device is provided. The display device may include a substrate, a plurality of pixels, a first data line, a second data line, a defect sensing line, a first input pad, and a static electricity discharge element. The substrate may include a display area and a peripheral area neighboring each other. The plurality of pixels may be positioned on the display area and may include a first pixel and a second pixel. The first data line may be electrically connected to the first pixel. The second data line may be electrically connected to the second pixel and may be electrically isolated from the first data line. The defect sensing line may be positioned on the peripheral area. The first input pad may be electrically connected to the defect sensing line. The static electricity discharge element may be electrically connected through the defect sensing line to the first input pad.

公开(公告)号：US20220100346A1

公开(公告)日：2022-03-31

申请号：US17406053

申请日：2021-08-18

Applicant: Samsung Display Co., LTD.

Inventor： Min Joo KIM ,  Ki Cheol KIM ,  Won Kyu KWAK

IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/00

Abstract: A display device includes a first area including a display area, a second area including a pad area, a bending area disposed between the first area and the second area, a plurality of touch signal lines extending from the second area to the first area through the bending area, a plurality of touch test lines disposed in the second area and separated and spaced apart from the plurality of touch signal lines, and a plurality of touch connection lines electrically connecting the plurality of touch signal lines and the plurality of touch test lines, wherein, in the second area, the plurality of touch signal lines and the plurality of touch test lines include a first conductive layer, and the plurality of touch connection lines includes a second conductive layer different from the first conductive layer.

公开(公告)号：US20210083037A1

公开(公告)日：2021-03-18

申请号：US17002705

申请日：2020-08-25

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Hoon KIM ,  Won Kyu KWAK

IPC: H01L27/32 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/3258

Abstract: A display device may include a substrate, pixels, a first common voltage line, an outer common voltage trunk line, a first outer common voltage line, and a second outer common voltage line. The substrate may include a display area and a non-display area. The pixels may be disposed on the display area. The first common voltage line may be at least partially disposed on the display area. The outer common voltage trunk line may be disposed on the non-display area, may be electrically connected through the first common voltage line to the pixels, and may include a groove. The first outer common voltage line may protrude from the outer common voltage trunk line. The second outer common voltage line may protrude from the outer common voltage trunk line. The groove may be disposed between the second outer common voltage line and the first common voltage line.

公开(公告)号：US20210082346A1

公开(公告)日：2021-03-18

申请号：US17103769

申请日：2020-11-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Won PARK ,  Won Kyu KWAK ,  Seung Kyu LEE

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

Abstract: An organic light emitting display device includes a pixel, a data line, a first scan line, a second scan line, and a scan driver. The pixel includes a first transistor, a second transistor, and a third transistor. A source of the first transistor is electrically connected to a drain of the third transistor. A source of the second transistor is configured to receive an initialization voltage. The data line is electrically connected to a source of the third transistor and may transmit a data voltage higher than the initialization voltage. The first scan line is electrically connected to a gate of the third transistor. The second scan line is electrically connected to a gate of the second transistor. The scan driver may provide an initializing scan signal to the second scan line at least two horizontal periods before providing an initial scan signal to the first scan line.

公开(公告)号：US20200043410A1

公开(公告)日：2020-02-06

申请号：US16599890

申请日：2019-10-11

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hyun KA ,  Won Kyu KWAK ,  Han Sung BAE

IPC: G09G3/3233 ,  G09G3/3266

Abstract: A pixel includes a plurality of transistors and an organic light emitting diode. The transistors include a first transistor to control an amount of current flowing to the organic light emitting diode. Additional transistors are connected to the first transistor or the organic light emitting diode. The first transistor is a Low Temperature Poly-Silicon (LTPS) thin film transistor. One or more of the other transistors are oxide semiconductor transistors.

公开(公告)号：US20190386079A1

公开(公告)日：2019-12-19

申请号：US16220670

申请日：2018-12-14

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kyu KANG ,  Won Kyu KWAK ,  Sang Moo CHOI

IPC: H01L27/32

Abstract: A pixel and a display device having the pixel, the pixel including: a light emitting element; a first transistor configured to control, in response to a voltage of a first node coupled to a gate electrode thereof, current to be supplied from a first power supply coupled with a first electrode thereof to a second power supply via the light emitting element; a storage capacitor coupled between the first node and the first power supply; a second transistor coupled between a data line and the first transistor; an initialization transistor coupled between the light emitting element and an initialization power supply to transmit a voltage of the initialization power supply the light emitting element; and a dummy transistor coupled between the light emitting element and the initialization power supply, and including a first electrode and a second electrode that are coupled with each other.

公开(公告)号：US20190295475A1

公开(公告)日：2019-09-26

申请号：US16436216

申请日：2019-06-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hae Yeon LEE ,  Won Kyu KWAK ,  Joong Soo MOON ,  Chang Kyu JIN

IPC: G09G3/3291 ,  H01L51/52 ,  H01L51/00 ,  G02F1/1362 ,  G09G3/3225 ,  H01L27/32 ,  H01L51/56

Abstract: A display device includes a substrate including a bent area, and a flat area including a plurality of pixels, a plurality of island-shaped inorganic insulating patterns arranged on the substrate in the bent area to be separate from each other, an organic insulating layer including a concavo-convex surface covering the inorganic insulating patterns in the bent area, and wiring lines arranged on the organic insulating layer and overlapping the inorganic insulating patterns.

公开(公告)号：US20180158741A1

公开(公告)日：2018-06-07

申请号：US15616871

申请日：2017-06-07

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Woong KIM ,  Won Kyu KWAK ,  Seung-Kyu LEE

IPC: H01L21/66 ,  H01L27/12

CPC classification number: H01L22/32 ,  G09G3/006 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2330/12 ,  H01L22/12 ,  H01L22/34 ,  H01L27/124 ,  H01L27/1255

Abstract: A display device includes a display area, a peripheral area, a pad portion, a bending area, a first crack detection circuit, and a first crack detection line. The display area includes pixels and data lines. The peripheral area is disposed outside the display area. The pad portion is disposed in the peripheral area. The bending area is disposed in the peripheral area. The bending area is bendable or in a bent state. The first crack detection circuit is disposed between the display area and the pad portion. The first crack detection circuit includes switches. The first crack detection line includes a first curved portion disposed in the bending area. The first crack detection line is connected between the pad portion and the first crack detection circuit.