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：US12300156B2

公开(公告)日：2025-05-13

申请号：US18354419

申请日：2023-07-18

Applicant: Samsung Display Co., LTD.

Inventor： Junhyun Park ,  Hyeongseok Kim ,  Heejean Park ,  Minjae Jeong ,  Mukyung Jeon

IPC: G09G3/32 ,  H10K59/121

Abstract: A display device includes a substrate, a first active pattern above the substrate, a first gate layer above the first active pattern, and including a first capacitor electrode, a second gate layer above the first gate layer, and including a second capacitor electrode overlapping the first capacitor electrode, a second active pattern above the second gate layer, and including an extension portion above the second capacitor electrode, and a connection electrode above the second active pattern, and connecting the extension portion and the first capacitor electrode.

公开(公告)号：US20250133831A1

公开(公告)日：2025-04-24

申请号：US18922686

申请日：2024-10-22

Applicant: Samsung Display Co., Ltd

Inventor： Sunhwa Lee ,  Hyeongseok Kim ,  Heejean Park ,  Mukyung Jeon

IPC: H01L27/12 ,  G09G3/00 ,  G09G3/32 ,  G09G3/3233 ,  H01L25/16 ,  H10K59/131 ,  H10K102/00

Abstract: A display apparatus includes: a substrate including a first island portion and a second island portion spaced apart from each other, and a first bridge portion connecting the first island portion to the second island portion, a gate driving circuit disposed on the first island portion, a plurality of first input lines disposed on the second island portion, a connection line connected to some of the plurality of first input lines. The connection line is arranged to extend from the second island portion to the first island portion through the first bridge portion.

公开(公告)号：US12219808B2

公开(公告)日：2025-02-04

申请号：US17351923

申请日：2021-06-18

Applicant: Samsung Display Co., Ltd.

Inventor： Youngwan Seo ,  Gyungsoon Park ,  Sumi Lee ,  Jaeun Lee ,  Gunhee Kim ,  Hyeongseok Kim

IPC: H10K59/121 ,  H10K59/126 ,  H10K59/122 ,  H10K59/124 ,  H10K59/35

Abstract: A display apparatus includes: a first display area comprising a first plurality of pixels; a second display area comprising transmission areas and a second plurality of pixels, wherein: the second plurality of pixels of the second display area are arranged in a buffer display area and a normal display area of the second display area; the buffer display area is adjacent to the first display area; the normal display area is spaced apart from the first display area; and a pixel density of the normal display area is less than a pixel density of the buffer display area; and a blocking metal layer in the second display area and comprising openings corresponding to the transmission areas.

公开(公告)号：US12027110B2

公开(公告)日：2024-07-02

申请号：US18363556

申请日：2023-08-01

Applicant: Samsung Display Co., LTD.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0247

Abstract: A display apparatus includes a display panel including a pixel, a gate driver providing a gate signal to the pixel, a data driver providing a data voltage to the pixel and an emission driver providing an emission signal to the pixel. The pixel includes a driving switching element applying a driving current to the light emitting element, a storage capacitor connected to the driving switching element, a bias capacitor connected to the storage capacitor and receiving a bias gate signal, a threshold voltage compensation switching element connected to an electrode of the driving switching element and a light emitting element initialization switching element connected to an electrode of the light emitting element. A control signal applied to an electrode of the threshold voltage compensation switching element and a control signal applied to an electrode of the light emitting element initialization switching element are generated from different signal generators.

公开(公告)号：US20240215363A1

公开(公告)日：2024-06-27

申请号：US18467582

申请日：2023-09-14

Applicant: Samsung Display Co., Ltd.

Inventor： Sunhwa Lee ,  Heejean Park ,  Hyeongseok Kim ,  Junhyun Park

IPC: H10K59/131 ,  H10K59/121

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

Abstract: A display apparatus includes a display area configured to display an image using a pixel, and a peripheral area at least partially surrounding the display area, a pad portion in the peripheral area, and including pads, a first power voltage line between the display area and the pad portion in plan view, and including first power patterns spaced apart from each other, and a fan-out wire portion connected between the pad portion and the display area, and overlapping at least a portion of the first power patterns, wherein the fan-out wire portion includes a first fan-out wire, a second fan-out wire, and a third fan-out wire, the second fan-out wire being at a different layer from the first fan-out wire, and the third fan-out wire being at a different layer from the first fan-out wire and from the second fan-out wire.

公开(公告)号：US20230335063A1

公开(公告)日：2023-10-19

申请号：US18211322

申请日：2023-06-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gyungsoon PARK ,  Gunhee Kim ,  Hyeongseok Kim ,  Youngwan Seo ,  Chongchul Chai

IPC: G09G3/3275 ,  G09G3/20 ,  H10K59/124 ,  H10K59/131 ,  H10K59/35

CPC classification number: G09G3/3275 ,  G09G3/2003 ,  H10K59/124 ,  H10K59/131 ,  H10K59/353 ,  G09G2300/0452 ,  G09G2300/0426

Abstract: A display panel includes a 1-1st sub-pixel and a 1-2nd sub-pixel disposed in a first row, a 2-1st sub-pixel disposed in a second row and a 3-1st sub-pixel and a 3-2nd sub-pixel disposed in a third row. A first data line extends from the first row to the third row and electrically connects a pixel circuit of the 1-1st sub-pixel, a pixel circuit of the 2-1st sub-pixel, and a pixel circuit of the 3-1st sub-pixel. A 2-1st data line is electrically connected to a pixel circuit of the 1-2nd sub-pixel. A 2-2nd data line is electrically connected to a pixel circuit of the 3-2nd sub-pixel. A first bridge line is disposed on a different layer than the data lines and contacts the 2-1st data line and the 2-2nd data line and includes an overlapping portion extending along at least a portion of the first data line.

公开(公告)号：US11727864B2

公开(公告)日：2023-08-15

申请号：US17748521

申请日：2022-05-19

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/027

Abstract: A pixel circuit includes a light emitting element, a write transistor configured to apply a data voltage to an input node in response to a write gate signal, a storage capacitor configured to store the data voltage, a driving transistor configured to apply a driving current to the light emitting element based on the data voltage, a first compensation transistor configured to compensate for a threshold voltage of the driving transistor in response to a compensation gate signal, a first initialization transistor configured to apply a first initialization voltage to a control electrode of the driving transistor in response to an initialization gate signal, and a boost capacitor including a first electrode to which a previous initialization gate signal applied to a previous pixel row is applied and a second electrode connected to the control electrode of the driving transistor.

公开(公告)号：US11626467B2

公开(公告)日：2023-04-11

申请号：US17152934

申请日：2021-01-20

Applicant: Samsung Display Co., Ltd.

Inventor： Sunhwa Lee ,  Mukyung Jeon ,  Hyeongseok Kim ,  Gyungsoon Park ,  Youngwan Seo ,  Kyunghoon Chung

IPC: H01L27/32 ,  G09G3/3258

Abstract: A display panel includes a first display area having a first light transmittance and a second display area having a second light transmittance that is higher than the first light transmittance. The display panel further comprises a plurality of first pixels disposed in the first display area and a plurality of second pixels disposed in the second display area. A first power line is connected to the plurality of first pixels. The first power line is configured to provide a first power voltage. A second power line is connected to the plurality of second pixels. The second power line is configured to provide a second power voltage having a voltage level that is different from a voltage level of the first power voltage.

公开(公告)号：US11386850B2

公开(公告)日：2022-07-12

申请号：US17128519

申请日：2020-12-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gyungsoon Park ,  Gunhee Kim ,  Hyeongseok Kim ,  Youngwan Seo ,  Chongchul Chai

IPC: G09G5/02 ,  G09G3/3275 ,  G09G3/20 ,  H01L27/32

Abstract: A display panel includes a 1-1st sub-pixel and a 1-2nd sub-pixel disposed in a first row, a 2-1st sub-pixel disposed in a second row and a 3-1st sub-pixel and a 3-2nd sub-pixel disposed in a third row. A first data line extends from the first row to the third row and electrically connects a pixel circuit of the 1-1st sub-pixel, a pixel circuit of the 2-1st sub-pixel, and a pixel circuit of the 3-1st sub-pixel. A 2-1st data line is electrically connected to a pixel circuit of the 1-2nd sub-pixel. A 2-2nd data line is electrically connected to a pixel circuit of the 3-2nd sub-pixel. A first bridge line is disposed on a different layer than the data lines and contacts the 2-1st data line and the 2-2nd data line and includes an overlapping portion extending along at least a portion of the first data line.