公开(公告)号：US12254835B2

公开(公告)日：2025-03-18

申请号：US18545728

申请日：2023-12-19

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：US20240412671A1

公开(公告)日：2024-12-12

申请号：US18807852

申请日：2024-08-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won-Kyu Kwak ,  Hwan-Soo Jang ,  Seung-Kyu Lee

IPC: G09G3/00 ,  G09G3/3291

Abstract: A display panel includes: a display including pixel columns electrically connected to data lines; a non-display area adjacent the display; a test circuit configured to receive a lighting test signal passing through at least a portion of the non-display area and to transfer the lighting test signal to the data lines in response to a test control signal; and a switch configured to receive a data signal from an external component and to transfer the data signal to the data lines in response to a switching signal.

公开(公告)号：US12154513B2

公开(公告)日：2024-11-26

申请号：US18307925

申请日：2023-04-27

Applicant: Samsung Display Co., LTD.

Inventor： Seung-Kyu Lee ,  Yongsik Hwang

IPC: G09G3/3266 ,  G09G3/3258

Abstract: A display device including a light emitting diode, a driving transistor, a second transistor, a third transistor, a fourth transistor, and a current blocking transistor. The current blocking transistor is a transistor of a different type from the driving transistor, and in case that a voltage of a gate electrode of the driving transistor is maintained at an initialization voltage, the current blocking transistor is turned off during a light emitting period to not transmit the light emitting current outputted by the driving transistor to an anode of the light emitting diode.

公开(公告)号：US11640793B2

公开(公告)日：2023-05-02

申请号：US17400589

申请日：2021-08-12

Applicant: Samsung Display Co., Ltd.

Inventor： Sungjin Kim ,  Jongwon Park ,  Myeonghee Seo ,  Huigyeong Yun ,  Seung-Kyu Lee ,  Younguk Hwang

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

Abstract: A display device may include a display panel including a plurality of pixels, a data driver which applies data signals to the display panel, a scan driver including scan stages, which sequentially applies scan signals to the display panel, an emission driver including an emission stage which sequentially applies emission signals to the display panel, and a power supply voltage generator which generates a power supply voltage including high voltages and low voltages, and provides the high voltages having different voltage levels from each other or the low voltages having different voltage levels from each other to at least one selected from the scan stages and the emission stage. The power supply voltage generator generates a first high voltage, a first low voltage, a second high voltage lower than the first high voltage, and a second low voltage higher than the first low voltage based on an input voltage.

公开(公告)号：US11270637B2

公开(公告)日：2022-03-08

申请号：US16929030

申请日：2020-07-14

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Won Park ,  Seung-Kyu Lee ,  Hyun Woong Kim

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A display device includes: an organic light emitting diode (OLED); a pixel circuit configured to control an amount of a current flowing from a first power voltage to the OLED; and a gate line and a data line that are connected to the pixel circuit, the pixel circuit including: an auxiliary transistor including a gate electrode electrically connected to the data line and a first electrode and a second electrodes connected to the gate line, the first electrode and the second electrode of the auxiliary transistor being electrically connected to each other.

公开(公告)号：US11087689B2

公开(公告)日：2021-08-10

申请号：US16444911

申请日：2019-06-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung-Kyu Lee ,  Kwang-Min Kim ,  Byoung Sun Kim

IPC: G09G3/3258 ,  G02F1/1345 ,  G09G3/20 ,  H01L27/32

Abstract: A display includes a plurality of pixels in a non-quadrangular display area and a plurality of first driving circuits and a plurality of second driving circuits in a peripheral area of the display area. Each of the pixels is connected to a first signal line in a first direction and a second signal line in a second direction crossing the first direction. Each of the first driving circuits outputs a first signal to the first signal line of a corresponding one of the pixels. Each of the second driving circuits outputs a second signal to the second signal line of a corresponding one of the pixels. The number of second driving circuits between neighboring first driving circuits is different depending on a position in the peripheral area.

公开(公告)号：US11075225B2

公开(公告)日：2021-07-27

申请号：US15951418

申请日：2018-04-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hey Jin Shin ,  Won Kyu Kwak ,  Seung-Kyu Lee

IPC: H01L27/12 ,  H01L27/32

Abstract: A display device including: a substrate including a display area for displaying an image and a non-display area positioned at a periphery of the display area; a plurality of pixels positioned at the display area; a plurality of data lines connected with the plurality of pixels; and a crack detecting line positioned at the non-display area, wherein the crack detecting line includes: a plurality of unit connectors extending in a first direction, wherein the first direction is parallel to an extending direction of a side of the substrate nearest to the unit connectors; and a plurality of wiring portion units connected to each other through the plurality of unit connectors, wherein the number of wiring portion units is an even number.

公开(公告)号：US10861361B2

公开(公告)日：2020-12-08

申请号：US16105593

申请日：2018-08-20

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/00 ,  H01L27/32 ,  G06K7/10 ,  G02F1/1362 ,  G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3225

Abstract: A display device includes a substrate includes a display area having a plurality of pixels, a pad area including a plurality of input pads, and a circuit area positioned between the pad area and the display area; a crack sensor having a first end and a second end, the first end being connected to a first input pad of the plurality of input pads; a first shorting element extending through the pad area, the first shorting element being connected to the second end and extending to an edge of the substrate; a plurality of data lines connected to the plurality of pixels; and a crack sensing circuit including a first switching element having an input terminal connected to the first end and an output terminal connected to a first data line of the plurality of data lines, and a second switching element having an input terminal connected to the second end and an output terminal connected to a second data line of the plurality of data lines.

公开(公告)号：US10854705B2

公开(公告)日：2020-12-01

申请号：US16902342

申请日：2020-06-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji-Hyun Ka ,  Seung-Kyu Lee ,  Hwan-Soo Jang ,  Jin-Tae Jeong

IPC: H01L27/32 ,  H01L51/56

Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.

公开(公告)号：US10522431B2

公开(公告)日：2019-12-31

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: H01L27/12 ,  H01L27/32 ,  G02F1/1333 ,  G01R31/02 ,  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.