公开(公告)号：US11355041B2

公开(公告)日：2022-06-07

申请号：US17213355

申请日：2021-03-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwang Sae Lee ,  Won Kyu Kwak ,  Ki Myeong Eom

IPC: G09G3/00 ,  G06F1/16 ,  G09G3/3291

Abstract: A display device includes a display area configured to include a plurality of pixels and a plurality of data lines connected to the pixels. A hole area is disposed within the display area. A hole crack detection line is disposed adjacent to the hole area and surrounds the hole area. The device includes first and second detection lines which include first and second detection transfer lines and first and second detection receiving lines, respectively. A test controller electrically connects the first detection receiving line to a first data line and the second detection receiving line to a second data line. Pixels connected to the first data line that is connected to a first bright-line transistor and pixels connected to the second data line that is connected to a second bright-line transistor are configured to emit light when a crack occurs in the hole crack detection line.

公开(公告)号：US11341875B2

公开(公告)日：2022-05-24

申请号：US16572700

申请日：2019-09-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwang Sae Lee ,  Ji-Hyun Ka ,  Won Kyu Kwak ,  Ki Myeong Eom ,  Hai-Jung In

IPC: G01R27/08 ,  G01R31/28 ,  G09G3/00

Abstract: A display device including: a substrate including a display area and a peripheral area peripheral to the display area; a plurality of pads disposed in a pad area, wherein the pad area is disposed in the peripheral area and the pad area includes an integrated circuit (IC); and a first crack detecting line connected to a first pad and a second pad at a first node, and a third pad at a second node, wherein the first crack detecting line is disposed in the peripheral area between the first node and the second node.

公开(公告)号：US11195440B2

公开(公告)日：2021-12-07

申请号：US15987268

申请日：2018-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwang Sae Lee ,  Jung Hoon Shim ,  Won Kyu Kwak ,  Ki Myeong Eom

IPC: G09G3/00 ,  G01R27/08 ,  G01R31/28

Abstract: A display device includes a defect inspection circuit, and a display panel having a display area and a peripheral area positioned outside the display area. The display panel includes a sensing wire positioned in the peripheral area and connected to the defect inspection circuit. The defect inspection circuit includes a resistance detection circuit that detects a resistance of the sensing wire based on an output signal corresponding to the sensing wire, a memory that stores first resistance information related to the resistance of the sensing wire detected in a first inspection operation, and a comparator circuit including a first comparator that compares the first resistance information with second resistance information. The second resistance information is related to the resistance of the sensing wire detected in a second inspection operation that is performed at a different time than the first inspection operation.

公开(公告)号：US11062967B2

公开(公告)日：2021-07-13

申请号：US16727266

申请日：2019-12-26

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Woong Kim ,  Won Kyu Kwak ,  Seung-Kyu Lee

IPC: H01L27/12 ,  H01L27/32 ,  H01L21/66 ,  G09G3/00

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.

公开(公告)号：US10861386B2

公开(公告)日：2020-12-08

申请号：US15870378

申请日：2018-01-12

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：US10692412B2

公开(公告)日：2020-06-23

申请号：US16279331

申请日：2019-02-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung-Kyu Lee ,  Tae Hoon Kwon ,  Ji-Hyun Ka ,  Won Kyu Kwak ,  Dong Soo Kim ,  Han-Sung Bae ,  Hey Jin Shin ,  Seung Ji Cha

IPC: G09G3/00

Abstract: A display device includes a peripheral area around a display area, a plurality of pixels in the display area, and a plurality of signal lines connected to the pixels. The signal lines include a plurality of data lines connected to the pixels, a crack detection line connected to first data lines among the data lines through a first transistor, and a control line connected to a gate of the first transistor. The crack detection line is in the peripheral area.

公开(公告)号：US10679561B2

公开(公告)日：2020-06-09

申请号：US16111831

申请日：2018-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Kwang-Min Kim ,  Seung-Kyu Lee ,  Won Kyu Kwak

IPC: G09G3/3258 ,  G09G3/00 ,  G09G3/3266

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：US10658444B2

公开(公告)日：2020-05-19

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：US10586836B2

公开(公告)日：2020-03-10

申请号：US15838624

申请日：2017-12-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung-Bae Bae ,  Won Kyu Kwak

IPC: H01L27/32 ,  H01L27/12 ,  H01L51/52 ,  H01L51/00 ,  H01L51/50

Abstract: The present disclosure relates to a display device. An exemplary embodiment of the present invention provides a display device including a substrate and an active pattern positioned above the substrate. to the active pattern includes a channel region and a conductive region having a higher carrier concentration than the channel region. A first insulating layer is disposed on the active pattern. A first conductive layer is disposed on the first insulating layer and includes a first conductor. The channel region of the active pattern includes a first channel region overlapping the first conductor along a direction orthogonal to an upper surface of the substrate. The conductive region of the active pattern includes a first conductive region overlapping the first conductor along the direction orthogonal to the upper surface of the substrate.

公开(公告)号：US10553619B2

公开(公告)日：2020-02-04

申请号：US15829613

申请日：2017-12-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Kyu Kwak

IPC: H01L23/00 ,  H01L27/12 ,  H01L27/32

Abstract: An array substrate includes a substrate, a barrier layer disposed on the substrate, a buffer layer disposed on the barrier layer, a first insulating layer disposed on the buffer layer, a second insulating layer disposed on the first insulating layer, a plurality of wiring patterns disposed between the first insulating layer and the second insulating layer and/or on the second insulating layer. In addition, the wiring patterns are separated from each other, and extend toward a side of the substrate. The array substrate further includes a recess pattern disposed adjacent the wiring patterns and recessed from a top surface of the second insulating layer to expose at least part of a top surface of the substrate, and an organic insulating layer disposed on the second insulating layer and exposing at least part of a portion of the top surface of the substrate which is exposed by the recess pattern.