公开(公告)号：US20250157392A1

公开(公告)日：2025-05-15

申请号：US18825169

申请日：2024-09-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： NAHYEON CHA ,  KYUNGHO KIM ,  GICHANG LEE

IPC: G09G3/32

Abstract: A display device includes a display panel driven in units of frames and include a pixel including a pixel driving circuit and a light-emitting element. The pixel driving circuit may include a first driving sub-transistor, a second driving sub-transistor, and a luminance transistor. The first driving sub-transistor includes a first electrode connected to a first node and a gate electrode connected to a second node. The second driving sub-transistor includes a gate electrode connected to the second node. The luminance transistor includes a first electrode connected to the first node, a second electrode connected to a third node, and a gate electrode which receives a luminance signal. The frame may include a first frame and a second frame, and the luminance signal may be activated in the first frame to have a first pulse width and may be activated in the second frame to have a second pulse width.

公开(公告)号：US20220269466A1

公开(公告)日：2022-08-25

申请号：US17518723

申请日：2021-11-04

Applicant: Samsung Display Co., LTD.

Inventor： NAHYEON CHA ,  SUNKWUN SON ,  DONG HEE SHIN

IPC: G06F3/14 ,  H01L27/32

Abstract: A display device includes a tiled display structure including a first display panel, a second display panel adjacent to a first side of the first display panel, a third display panel adjacent to a second side of the first display panel, and a fourth display panel adjacent to a first side of the third display panel and a first side of the second display panel. Each of the first to fourth display panels includes a display area and a pad area, and each of the first to fourth display panels includes a plurality of pixels in the display area. Each of the pixels includes at least two sub-pixels. When viewed in a plan view of the tiled display structure, the at least two sub-pixels included in each of the pixels are repeatedly arranged in a row direction and a column direction on a plane of the tiled display structure.

公开(公告)号：US20220059479A1

公开(公告)日：2022-02-24

申请号：US17352009

申请日：2021-06-18

Applicant: Samsung Display Co., Ltd.

Inventor： DONG HEE SHIN ,  SUNKWUN SON ,  NAHYEON CHA

IPC: H01L23/00 ,  H05K1/11 ,  H05K1/18

Abstract: A display panel includes: a display substrate including a display area and a pad area spaced apart from a side of the display area in a first direction; and first to (n)th signal pads (where n is an integer of 2 or more) in the pad area on the display substrate, extending in the first direction, and spaced apart from each other in a second direction perpendicular to the first direction, wherein a (k)th signal pad among the first to (n)th signal pads (where k is an integer between 1 and n) is between the first signal pad and the (n)th signal pad, wherein a length of each of (k)th to (n)th signal pads among the first to (n)th signal pads along the first direction gradually increases, and wherein a width of each of the (k)th to (n)th signal pads along the second direction gradually decreases.

公开(公告)号：US20250157412A1

公开(公告)日：2025-05-15

申请号：US18946738

申请日：2024-11-13

Applicant: Samsung Display Co., LTD.

Inventor： KYUNGHO KIM ,  NAHYEON CHA ,  SANG YONG NO

IPC: G09G3/3266 ,  G09G3/32

Abstract: A gate signal masking circuit includes a first switching element including a control electrode connected to a masking node, a first electrode connected to a first node and a second electrode connected to a third node, a second switching element including a control electrode connected to a second node, a first electrode receiving a masking signal and a second electrode connected to a fourth node, a third switching element including a control electrode receiving a first signal, a first electrode connected to the fourth node and a second electrode connected to the masking node, a fourth switching element including a control electrode receiving a second signal, a first electrode connected to the masking node and a second electrode connected to a fifth node and a fifth switching element including a control electrode connected to the second node, an electrode connected to the fifth node and another electrode receiving a power.

公开(公告)号：US20220077278A1

公开(公告)日：2022-03-10

申请号：US17232043

申请日：2021-04-15

Applicant: Samsung Display Co., Ltd.

Inventor： SUNKWUN SON ,  DONG HEE SHIN ,  NAHYEON CHA

IPC: H01L27/32 ,  H01L23/60

Abstract: A display device according to an embodiment may include a first sub-display panel and a second sub-display panel adjacent to the first sub-display panel in a first direction. The first sub-display panel may include a first pixel adjacent to the second sub-display panel and a first ground line disposed between the first pixel and the second sub-display panel and extending in a second direction crossing the first direction. The second sub-display panel may include a second pixel adjacent to the first sub-display panel and a second ground line disposed between the second pixel and the first sub-display panel and extending in the second direction.

公开(公告)号：US20250107378A1

公开(公告)日：2025-03-27

申请号：US18769173

申请日：2024-07-10

Applicant: Samsung Display Co., LTD.

Inventor： NAHYEON CHA ,  SUNKWUN SON ,  DONG HEE SHIN

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/122 ,  H10K71/60

Abstract: A display device includes: a first auxiliary insulating layer through which an opening is defined; a second auxiliary insulating layer on the first auxiliary insulating layer; a pixel definition layer on the second auxiliary insulating layer and having a pixel opening defined therethrough; a first auxiliary electrode having at least a portion in the opening; a second auxiliary electrode having at least a portion in the opening, the second auxiliary electrode comprising a second-first portion on the first auxiliary electrode and a second-second portion comprising a first surface that forms a first angle with an upper surface of the first auxiliary electrode and is spaced apart from the upper surface of the first auxiliary electrode; a first electrode having a portion in the pixel opening; and a second electrode on the first electrode and electrically connected to the first auxiliary electrode.

公开(公告)号：US20250061841A1

公开(公告)日：2025-02-20

申请号：US18655482

申请日：2024-05-06

Applicant: Samsung Display Co., LTD.

Inventor： KYUNGHO KIM ,  NAHYEON CHA ,  SUNGYOON HWANG

IPC: G09G3/32

Abstract: A gate driver includes a control circuit which controls a voltage of a first control node and a voltage of a second control node in response to an input signal, a first control clock signal, a the second control clock signal, a carry output circuit which generates a carry signal in response to voltages of the first control node and the second control node, an enable node control circuit controlling a voltage of an enable node in response to the carry signal, an enable signal, and an inverted enable signal, a masking circuit which controls a voltage of a first intermediate node in response to the voltage of the first control node, the carry signal, and the voltage of the enable node, and a gate output circuit which outputs a gate signal in response to the carry signal, the voltage of the first intermediate node, and an output clock signal.

公开(公告)号：US20220059038A1

公开(公告)日：2022-02-24

申请号：US17317035

申请日：2021-05-11

Applicant: Samsung Display Co., Ltd.

Inventor： DONG HEE SHIN ,  SUNKWUN SON ,  NAHYEON CHA ,  DONGHYEON KI

IPC: G09G3/3291

Abstract: A display apparatus includes a display panel, a data driving circuit and a gate driving circuit. The display panel displays an image and includes a plurality of pixels. The data driving circuit applies a data voltage to a data line of the display panel. The gate driving circuit applies a gate output signal to a gate line of the display panel. The gate driving circuit is disposed between opening portions in a display area of the display panel. The gate driving circuit includes a normal stage column extending in a pixel column direction of the display panel and including a plurality of normal stages and a dummy stage column disposed adjacent to an end portion of the normal stage column in a pixel row direction and including a plurality of dummy stages.