公开(公告)号：US11961455B2

公开(公告)日：2024-04-16

申请号：US18066977

申请日：2022-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Junhyun Park ,  Jangmi Kang ,  Hyeongseok Kim ,  Minjae Jeong ,  Mukyung Jeon

IPC: G09G3/32 ,  G09G3/00

CPC classification number: G09G3/32 ,  G09G3/006 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0275 ,  G09G2330/12

Abstract: A pixel circuit includes: a light emitting element; a driving transistor to generate a driving current; a write transistor including a control electrode to receive a write gate signal, a first electrode to receive a data voltage, and a second electrode connected to a first electrode of a storage capacitor; a first compensation transistor including a control electrode to receive a compensation gate signal, a first electrode connected to a control electrode of the driving transistor, and a second electrode connected to a first electrode of the driving transistor; the storage capacitor including the first electrode connected to the second electrode of the write transistor, and a second electrode connected to the control electrode of the driving transistor; and a test transistor including a control electrode, a first electrode to receive the data voltage, and a second electrode connected to a second electrode of the driving transistor.

公开(公告)号：US11955078B2

公开(公告)日：2024-04-09

申请号：US17888295

申请日：2022-08-15

Applicant: Samsung Display Co., Ltd.

Inventor： Heerim Song ,  Heejean Park ,  Yujin Lee ,  Cheol-Gon Lee ,  Mukyung Jeon

IPC: G09G3/3233 ,  H10K59/13 ,  H10K59/60 ,  H10K59/65

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0291 ,  G09G2354/00 ,  G09G2360/144 ,  G09G2360/148 ,  H10K59/13 ,  H10K59/60 ,  H10K59/65

Abstract: A display device includes: a pixel driving circuit configured to drive the light emitting elements of pixels; and sensors including a light sensing element and a sensor driving circuit connected with the light sensing element and configured to output a sensing signal corresponding to a light, the sensor driving circuit including: a reset transistor including a first electrode configured to receive a reset signal, a second electrode connected with a first sensing node, and a third electrode configured to receive a reset control signal; an amplification transistor including a first electrode configured to receive a sensing driving voltage, a second electrode connected with a second sensing node, and a third electrode connected with the first sensing node; and an output transistor including a first electrode connected with the second sensing node, a second electrode connected with a sensing line, and a third electrode configured to receive an output control signal.

公开(公告)号：US11950478B2

公开(公告)日：2024-04-02

申请号：US17445826

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Kyunghoe Lee ,  Byungchang Yu ,  Mukyung Jeon

IPC: H01L27/32 ,  H10K59/121 ,  H10K59/35

CPC classification number: H10K59/353 ,  H10K59/121 ,  H10K59/352

Abstract: A display apparatus is disclosed that includes a first display area and a second display area adjacent to the first display area. The first and second display areas include first and second light emitting areas having first and second pixel densities, respectively. The first and second light emitting areas at an interface between the first and second display areas are arranged such that in operation light emitted by the first and second light emitting areas produces a gradual decrease in light intensity from the first display area to the second display area near the interface.

公开(公告)号：US20230099387A1

公开(公告)日：2023-03-30

申请号：US17889303

申请日：2022-08-16

Applicant: Samsung Display Co., LTD.

Inventor： JUNHYUN PARK ,  Hyeongseok Kim ,  Jangmi Kang ,  Minjae Jeong ,  Mukyung Jeon

IPC: G09G3/32

Abstract: A pixel circuit includes a light emitting element, a driving switching element, a storage capacitor, a data voltage applying switching element and a first leakage compensation switching element. The driving switching element is configured to apply a driving current to the light emitting element. The storage capacitor is connected to a control electrode of the driving switching element. The data voltage applying switching element is configured to apply a data voltage to the storage capacitor. The first leakage compensation switching element is disposed between the storage capacitor and the data voltage applying switching element.

公开(公告)号：US11423684B2

公开(公告)日：2022-08-23

申请号：US16838689

申请日：2020-04-02

Applicant: Samsung Display Co., Ltd.

Inventor： Chul Kim ,  Keumdong Jung ,  KyungTea Park ,  Sunhwa Lee ,  Mukyung Jeon ,  Sanghyun Heo

IPC: G06V40/13 ,  G06F3/041 ,  G06V10/141 ,  G06V40/12

Abstract: A display device relating to a method of operating thereof includes: a display panel having a touch sensing unit to sense an external touch and a display unit including a plurality of pixels; a fingerprint sensing panel to sense a fingerprint disposed on one surface of the display unit, the fingerprint sensing panel having a plurality of fingerprint sensing pixels respectively connected to a plurality of fingerprint scan lines and a plurality of fingerprint sensing lines, and a fingerprint scan driving circuit to drive one or more fingerprint scan lines included in a sensing area; and a read-out circuit to output a selection signal for selecting a sensing area of the fingerprint sensing panel.

公开(公告)号：US11031453B2

公开(公告)日：2021-06-08

申请号：US16376364

申请日：2019-04-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Heerim Song ,  Gyungsoon Park ,  Mukyung Jeon

IPC: H01L27/32 ,  H01L51/00 ,  H05K1/18

Abstract: A flexible display apparatus includes a panel that includes a display area that displays images and a fan-out portion in which a plurality of wirings connected to the display area are located, and a driving chip connected to the fan-out portion and connected to the display area via the plurality of wirings. The plurality of wirings arranged in the fan-out portion may include first wirings at a first layer on the panel and second wirings at a second layer that is different from the first layer. The first wirings and the second wirings may be in an overlapping relationship above and below each other.

公开(公告)号：US20190138131A1

公开(公告)日：2019-05-09

申请号：US16185009

申请日：2018-11-09

Applicant: Samsung Display Co., Ltd.

Inventor： Ji-sun Kim ,  Mukyung Jeon

IPC: G06F3/044 ,  G06F3/041 ,  G06K9/00 ,  G09G3/20

Abstract: A display device includes a display panel having a display area displaying an image and a non-display area disposed outside of the display area, and a sensing part including a plurality of sensing electrodes, a plurality of sensing circuits corresponding one-to-one to the plurality of sensing electrodes, and a plurality of sensing lines connecting the plurality of sensing electrodes and the plurality of sensing circuits in one-to-one. The plurality of sensing electrodes are disposed in an area overlapping the display area, and the plurality of sensing circuits are disposed in an area overlapping the non-display area.

公开(公告)号：US10103214B2

公开(公告)日：2018-10-16

申请号：US15354923

申请日：2016-11-17

Applicant: Samsung Display Co., Ltd.

Inventor： Iljoo Kim ,  Mukyung Jeon ,  Heerim Song

IPC: G09G3/32 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L29/786 ,  H01L29/78 ,  H01L27/12

Abstract: A display device is disclosed. In one aspect, the device includes a plurality of pixels arranged in rows and columns, each pixel including a transistor that includes first and second electrodes in a column direction, and a channel curved between the first and second electrodes, and a capacitor overlapping the transistor. The device also includes a first data line connected to at least one first pixel in an odd row of the pixels arranged in the columns, and overlapping a first electrode of a transistor of the first pixel and a second data line connected to at least one second pixel in an even row of the pixels arranged in the columns, and overlapping a first electrode of a transistor of the second pixel. The first and second data lines are arranged in the columns and are parallel to one another.

公开(公告)号：US12232395B2

公开(公告)日：2025-02-18

申请号：US18191797

申请日：2023-03-28

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehyung Cho ,  Dong-Hoon Lee ,  Mukyung Jeon

IPC: H10K59/40 ,  G06F3/044 ,  H10K59/131 ,  H10K59/80

Abstract: A display device including a display panel and an input sensor including detection electrodes overlapping an active area, and first trace lines connected to the detection electrodes, having a portion overlapping the active area, and including mesh lines overlapping the active area, having a portion extending in a first direction, and including a first row mesh line having a portion extending in the first direction, and a second row mesh line having a portion extending in the first direction, and spaced apart from the first row mesh line in a second direction, and a second portion electrically connected to the mesh lines, overlapping the peripheral area, extending in the second direction, and including a first column wiring connected to the first row mesh line and extending in the second direction, and a second column wiring connected to the second row mesh line and extending in the second direction.

公开(公告)号：US12217685B2

公开(公告)日：2025-02-04

申请号：US18450786

申请日：2023-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： Heerim Song ,  Cheol-Gon Lee ,  Mukyung Jeon

IPC: G09G3/3233 ,  G06F3/041 ,  G06F3/042 ,  G06V40/13

Abstract: A display device includes a plurality of pixels, each of which includes a light emitting element and a pixel driving circuit and a plurality of sensors, each of which includes a light receiving element and a sensor driving circuit. A sensor driving circuit included in at least one of sensors includes a reset transistor configured to output a reset signal to a first sensing node in response to a reset control signal, an amplification transistor connected to first and second sensing nodes and configured to receive a sensor driving voltage, a first output transistor connected between the second sensing node and a readout line and configured to receive a first output control signal, and a second output transistor connected between the second sensing node and the readout line and configured to receive a second output control signal.