公开(公告)号：US20250029566A1

公开(公告)日：2025-01-23

申请号：US18589449

申请日：2024-02-28

Applicant: Samsung Display Co., Ltd.

Inventor： Kwi Hyun KIM ,  Se Hyun LEE ,  Jin Joo HA

IPC: G09G3/3291 ,  G09G3/32

Abstract: The present disclosure relates to a display device, and more particularly, to a display device that can determine whether pixels are defective. According to an embodiment of the disclosure, a display device comprising: a light-emitting element; a driving transistor connected between a driving voltage line and an anode electrode of the light-emitting element; and a fifth transistor connected between the anode electrode of the light-emitting element and a sensing line, wherein the fifth transistor always remains turned off during normal operation of the display device.

公开(公告)号：US20240332309A1

公开(公告)日：2024-10-03

申请号：US18604289

申请日：2024-03-13

Applicant: Samsung Display Co., Ltd.

Inventor： Won Jun LEE ,  Kwi Hyun KIM ,  Dong Woo KIM ,  Do Yeong PARK

IPC: H01L27/12 ,  H10K59/123 ,  H10K59/40 ,  H10K102/00

CPC classification number: H01L27/1225 ,  H01L27/1255 ,  H10K59/123 ,  H10K59/40 ,  H10K2102/311

Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of improving image quality by reducing or minimizing voltage fluctuations of a gate electrode of a driving transistor. The display device includes a substrate; a field effect transistor on the substrate; an oxide-based transistor on a layer different from the field effect transistor and connected to the field effect transistor through a contact hole in an insulating layer; and a pixel electrode on the oxide-based transistor.

公开(公告)号：US20240212619A1

公开(公告)日：2024-06-27

申请号：US18490420

申请日：2023-10-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Woo KIM ,  Kwi Hyun KIM ,  Yeon Kyung KIM

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2310/0243 ,  G09G2310/08 ,  G09G2320/0646

Abstract: A pixel includes a light emitting element, a first transistor including an electrode connected to a first power source line via a first node, another electrode connected to a second power source line via a second node and the light emitting element, and another electrode connected to a third node. The pixel further includes a second transistor connected between a data line and the second node and having a gate electrode connected to a scan line, a third transistor connected between the first node and the third node and having a gate electrode connected to the scan line, a fourth transistor connected between the first power source line and the first node and having a gate electrode connected to an emission control line, a first capacitor connected between the second node and the third node, and a second capacitor connected between a third power source line and the third node.

公开(公告)号：US20220293052A1

公开(公告)日：2022-09-15

申请号：US17519908

申请日：2021-11-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hwa Rang LEE ,  Kwi Hyun KIM ,  Sang Yong NO ,  Ji Yeon CHOI

IPC: G09G3/3233 ,  H01L27/15 ,  G09G3/20

Abstract: Provided herein may be a pixel. The pixel may include a driving transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power line, and a second electrode coupled to a second node, a control transistor including a gate electrode coupled to the first node, a first electrode coupled to the second node, and a second electrode that is different from the first electrode, a first emission unit including at least one light-emitting element coupled between the second electrode of the control transistor and a second power line, and a second emission unit including at least one light-emitting element coupled between the second node and the second power line, wherein the second electrode of the control transistor is coupled to a first electrode of the first emission unit.

公开(公告)号：US20220190093A1

公开(公告)日：2022-06-16

申请号：US17445266

申请日：2021-08-17

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Yong NO ,  Tae Ho KANG ,  Kwi Hyun KIM ,  Hwa Rang LEE ,  Ji Yeon CHOI

IPC: H01L27/32 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device, includes: pixels at a display area; gate lines at the display area, and connected to the pixels; carry clock lines and scan clock lines at the display area; and a gate driving circuit distributedly located at the display area, and connected to the carry clock lines, the scan clock lines, and the gate lines. The gate driving circuit includes a plurality of stages, each of the stages to output, as a carry signal, a carry clock signal supplied through a corresponding carry clock line from among the carry clock lines, and to output, as a scan signal, a scan clock signal supplied through a corresponding scan clock line from among the scan clock lines. The corresponding carry clock line and the corresponding scan clock line corresponding to one stage from among the stages are spaced from each other with at least one of the pixels interposed therebetween.

公开(公告)号：US20250029559A1

公开(公告)日：2025-01-23

申请号：US18733732

申请日：2024-06-04

Applicant: Samsung Display Co., LTD.

Inventor： Jin Joo HA ,  Se Hyun LEE ,  Kwi Hyun KIM

IPC: G09G3/3233 ,  G09G3/32 ,  H10K59/121

Abstract: A display device and a mobile electronic device including the display device each include a substrate, a driving element layer on the substrate and including pixel driving circuits for driving pixels, and a light emitting element layer on the driving element layer and including a light emitting element of each pixel. Transistors included in each pixel driving circuit are divided into a first transistor group and a second transistor group connected to a first well region and a second well region of the substrate, respectively, the first and second well regions in each pixel are spaced apart from each other by a first interval, the pixels include a first pixel and a second pixel adjacent to each other in a first direction, and well regions adjacent to each other in the first pixel and the second pixel are spaced apart from each other by the first interval.

公开(公告)号：US20250006125A1

公开(公告)日：2025-01-02

申请号：US18629024

申请日：2024-04-08

Applicant: Samsung Display Co., Ltd.

Inventor： Won Jun LEE ,  Kwi Hyun KIM ,  Yeon Kyung KIM

IPC: G09G3/3233 ,  G09G3/3266

Abstract: A pixel may include: a first transistor including a gate electrode connected to a first node, a first electrode connected to a first power line, and a second electrode connected to a second node, and; a second transistor including a first electrode connected to a data line, a second electrode, and a gate electrode connected to a first scan line; a third transistor connected between the data line and a third node, and including a gate electrode connected to a second scan line; a fourth transistor connected between the second node and the third node, and including a gate electrode connected to an emission control line; a first capacitor connected between the second transistor and the first node; a second capacitor connected between the first power line and the first node, and a light emitting element connected between the third node and a second power line.

公开(公告)号：US20240304146A1

公开(公告)日：2024-09-12

申请号：US18590704

申请日：2024-02-28

Applicant: Samsung Display Co., LTD.

Inventor： Won Jun LEE ,  Yeon Kyung KIM ,  Kwi Hyun KIM ,  Dong Woo KIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0233

Abstract: The present disclosure relates to a display device, and more particularly, to a display device capable of improving image quality and a method for driving the same. The display device includes a data line; a driving transistor connected to the data line through a first node; a pixel electrode connected to the driving transistor; and an initialization transistor connected between the data line and the pixel electrode, wherein one of a source electrode or a drain electrode of the initialization transistor is directly connected to the data line, and an other one of the source electrode or the drain electrode of the initialization transistor is directly connected to the pixel electrode.

公开(公告)号：US20230041072A1

公开(公告)日：2023-02-09

申请号：US17870319

申请日：2022-07-21

Applicant: Samsung Display Co., LTD.

Inventor： Sang Yong NO ,  Hwa Rang LEE ,  Kwi Hyun KIM ,  Ji Yeon CHOI

IPC: G09G3/32

Abstract: A display device includes: a display area and a non-display area; a first pixel area and a second pixel area, each provided in the display area; scan lines extending in a first direction and disposed in the first pixel area and the second pixel area; first sub-scan lines extending in a second direction and disposed in the first pixel area, the second direction intersecting the first direction; second sub-scan lines extending in the second direction and disposed in the first pixel area and the second pixel area; and a pad part provided in the non-display area, the pad part being electrically connected to the first sub-scan lines and the second sub-scan lines. The scan lines are electrically connected to at least one of the first sub-scan lines and the second sub-scan lines. The first sub-scan lines do not overlap the second pixel area in a plan view.

公开(公告)号：US20220343824A1

公开(公告)日：2022-10-27

申请号：US17545449

申请日：2021-12-08

Applicant: Samsung Display Co., LTD.

Inventor： Kwi Hyun KIM ,  Sang Yong NO ,  Hwa Rang LEE ,  Ji Yeon CHOI

IPC: G09G3/20 ,  G09G3/32

Abstract: A display device includes a data driver that outputs a first data signal and a second data signal of different voltages, and a pixel that emits light in response to the first data signal and the second data signal. The pixel includes a current generator generating a driving current corresponding to the first data signal, a first light emitting part including a first electrode, a second electrode, and a first light emitting element, a second light emitting part including a third electrode, a fourth electrode connected, and a second light emitting element, and a current controller controlling a divided current supplied to the second light emitting part in response to the second data signal.