公开(公告)号：US20240249685A1

公开(公告)日：2024-07-25

申请号：US18628642

申请日：2024-04-05

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：US20230098891A1

公开(公告)日：2023-03-30

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

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：US20220343844A1

公开(公告)日：2022-10-27

申请号：US17583005

申请日：2022-01-24

Applicant: Samsung Display Co., Ltd.

Inventor： HEERIM SONG ,  MUKYUNG JEON ,  HEEJEAN PARK ,  YUJIN LEE ,  CHEOL-GON LEE

IPC: G09G3/3233

Abstract: A pixel includes a light emitting element, a driving switching element, an initialization voltage terminal, a data initialization switching element set, and an adjustment switching element. The driving switching element may provide a driving current to the light emitting element. The adjustment switching element is electrically connected to the data initialization switching element in series. At least one of the data initialization switching element set and the adjustment switching element may control an electrical connection between the control electrode of the driving switching element and the initialization voltage terminal. A control electrode of the adjustment switching element is electrically connected to an input electrode of the adjustment switching element.

公开(公告)号：US20240365607A1

公开(公告)日：2024-10-31

申请号：US18626030

申请日：2024-04-03

Applicant: Samsung Display Co., LTD.

Inventor： JUNHYUN PARK ,  HYEONGSEOK KIM ,  HEEJEAN PARK ,  SUNHWA LEE

IPC: H10K59/126 ,  G09G3/3233

CPC classification number: H10K59/126 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device includes: a display panel including a light emitting element and a pixel circuit unit connected to the light emitting element. The pixel circuit unit includes: a first transistor connected between a drive voltage line and the light emitting element and which operates depending on a potential of a first node; a second transistor connected between a data line and a second node; a first capacitor electrode connected to the first node; a second capacitor electrode connected to the second node and which faces the first capacitor electrode; a third capacitor electrode connected to the second node; a fourth capacitor electrode, which faces the third capacitor electrode and is connected to the drive voltage line; a bridge electrode, which connects the second capacitor electrode and the third capacitor electrode; and a shielding electrode, which overlaps the bridge electrode in a plan view.

公开(公告)号：US20240233624A1

公开(公告)日：2024-07-11

申请号：US18491568

申请日：2023-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  HYEONGSEOK KIM ,  HEEJEAN PARK ,  SUNHWA LEE ,  MUKYUNG JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2330/06

Abstract: A display device includes: an active layer on a substrate; a first switching transistor including a part of the active layer; a second switching transistor including a part of the active layer and in a same plane as at least a part of the first switching transistor in a first direction in a plan view; a first capacitor on the active layer and connected to the second switching transistor; a second capacitor on the active layer and connected to the first switching transistor; a first gate line extending in the first direction and connected to a gate electrode of each of the first and second switching transistors; and a light emitting element on the first gate line.

公开(公告)号：US20240065031A1

公开(公告)日：2024-02-22

申请号：US18322765

申请日：2023-05-24

Applicant: Samsung Display Co., LTD.

Inventor： Hyeong Seok KIM ,  Min Jae JEONG ,  Jun Hyun PARK ,  HEEJEAN PARK

IPC: H10K59/121 ,  G09G3/3233 ,  H10K59/126 ,  H10K59/131 ,  H10K59/40 ,  H10K59/80 ,  H10K59/12

CPC classification number: H10K59/1213 ,  G09G3/3233 ,  H10K59/1216 ,  H10K59/126 ,  H10K59/131 ,  H10K59/40 ,  H10K59/873 ,  H10K59/1201 ,  G09G2300/0852 ,  G09G2300/0819

Abstract: A light emitting display device that includes thin film transistors. Material for electrodes of the thin film transistors are chosen to allow for dehydrogenation of the underlying semiconductor pattern while allowing for high frequency driving without delay. Molybdenum is chosen to allow for dehydrogenation, and titanium on aluminum two-layered structure is chosen for low resistance and high-speed driving. The display includes a driving transistor and a switching transistor with a polycrystalline semiconductor layer and a transistor with an oxide semiconductor layer.

公开(公告)号：US20240057398A1

公开(公告)日：2024-02-15

申请号：US18344536

申请日：2023-06-29

Applicant: Samsung Display Co., LTD.

Inventor： Jun Hyun PARK ,  Hyeong Seok KIM ,  HEEJEAN PARK ,  Min Jae JEONG

IPC: H10K59/123 ,  H10K59/121 ,  H10K59/131

CPC classification number: H10K59/123 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/1315

Abstract: The present disclosure relates to a display device, and one or more embodiments provides a display device including a substrate, a transistor above the substrate, a pixel electrode connected to the transistor, an extension electrode connected between the transistor and the pixel electrode, an additional capacitor electrode at a same layer as the extension electrode, overlapping the pixel electrode, and to which a constant voltage is applied, a light-emitting layer above the pixel electrode, and a common electrode above the light-emitting layer.

公开(公告)号：US20230368566A1

公开(公告)日：2023-11-16

申请号：US18114399

申请日：2023-02-27

Applicant: Samsung Display Co., Ltd.

Inventor： HEERIM SONG ,  HEEJEAN PARK ,  YUJIN LEE ,  CHEOL-GON LEE ,  MUKYUNG JEON

IPC: G06V40/13 ,  G09G3/3233 ,  H10K59/65 ,  H10K59/35

CPC classification number: G06V40/1318 ,  G09G3/3233 ,  H10K59/65 ,  H10K59/353 ,  H10K59/352 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2360/14 ,  G09G2354/00

Abstract: A display device includes a base layer and a pixel layer that is disposed on the base layer and that includes a plurality of reference pixel units and a plurality of sensors. Each of the plurality of reference pixel units includes a first light emitting element, a second light emitting element, and a third light emitting element. Each of the plurality of sensors includes a light sensing element disposed between two second light emitting elements adjacent to each other in a first direction and disposed between the first and third light emitting elements in a second direction intersecting the first direction. The second light emitting element has a different shape from the first and third light emitting elements, and the light sensing element has a different shape from the first and third light emitting elements.

公开(公告)号：US20230326233A1

公开(公告)日：2023-10-12

申请号：US18097514

申请日：2023-01-17

Applicant: Samsung Display Co., Ltd.

Inventor： HEERIM SONG ,  HEEJEAN PARK ,  YUJIN LEE ,  CHEOL-GON LEE ,  MUKYUNG JEON

IPC: G06V40/13 ,  G09G3/3233 ,  H10K39/34 ,  H10K59/40 ,  H10K59/121

CPC classification number: G06V40/1318 ,  G09G3/3233 ,  H10K39/34 ,  H10K59/40 ,  H10K59/1213 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2300/0426 ,  G09G2354/00 ,  G09G2300/0861

Abstract: Disclosed is a display device including a base layer and a pixel layer that is disposed on the base layer and that includes a plurality of pixels and a plurality of sensors. Each of the plurality of pixels includes a light emitting element and a pixel drive circuit connected to the light emitting element to control driving of the light emitting element. Each of the plurality of sensors includes a light sensing unit including a plurality of light sensing elements, a sensor drive circuit that is connected to at least two light sensing elements and that outputs a sensing signal in response to light, and a routing wire that electrically connects the at least two light sensing elements to each other.