公开(公告)号：US12211430B2

公开(公告)日：2025-01-28

申请号：US18372618

申请日：2023-09-25

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：US20240321216A1

公开(公告)日：2024-09-26

申请号：US18609591

申请日：2024-03-19

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2300/0819 ,  G09G2310/08

Abstract: A gate driving circuit is provided. Each stage of the gate driving circuit includes a first node controller configured to control a voltage level of a first node connected to a gate of a pull-down transistor, and a second node controller configured to control a voltage level of a second node connected to a gate of a pull-up transistor, wherein the first node controller comprises a first circuit and a second circuit, wherein the first circuit is connected between the first node and an input terminal to which a start signal is input, and configured to transfer the start signal to the first node, and the second circuit is connected between the input terminal and the first node, and may be configured to boost a voltage level of a voltage of the first node.

公开(公告)号：US20240224597A1

公开(公告)日：2024-07-04

申请号：US18400339

申请日：2023-12-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongseok Kim ,  Junhyun Park ,  Heejean Park ,  Sunhwa Lee ,  Danwon Lim ,  Mukyung Jeon

IPC: H10K59/121 ,  G09G3/3233 ,  H10K59/131

CPC classification number: H10K59/1216 ,  G09G3/3233 ,  H10K59/131 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0262

Abstract: A display apparatus includes a substrate, a first transistor including a first semiconductor layer on the substrate and a first electrode overlapping the first semiconductor layer, a first capacitor including the first electrode and a second electrode, the second electrode overlapping the first electrode, a second capacitor including the second electrode and a third electrode, the third electrode overlapping the second electrode, a first connection electrode and a second connection electrode disposed on the third electrode, wherein the third electrode includes a first opening, and a portion of the first connection electrode and a portion of the second connection electrode are adjacent to each other, are spaced apart from each other, and overlap the first opening.

公开(公告)号：US11723242B2

公开(公告)日：2023-08-08

申请号：US17022395

申请日：2020-09-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Junhyun Park ,  Hyeongseok Kim ,  Youngwan Seo ,  Yujin Lee ,  Cheolgon Lee

IPC: H10K59/131 ,  H10K59/40 ,  H10K59/124 ,  H10K59/121

CPC classification number: H10K59/131 ,  H10K59/124 ,  H10K59/1213 ,  H10K59/40

Abstract: A display apparatus includes a first display area including a plurality of pixel areas, and a second display area including a plurality of pixel areas and a plurality of transmission areas and arranged adjacent to the first display area. The plurality of pixel areas each includes sub-pixels each including a pixel circuit and an organic light-emitting device electrically connected to the pixel circuit. The pixel circuit includes a thin-film transistor and an inorganic insulating layer on the thin-film transistor, and the thin-film transistor includes a semiconductor layer and a gate electrode. The organic insulated layer extends in the transmission areas. The second display area defines a dummy contact hole which passes through the inorganic insulating layer in at least one of the pixel areas and the transmission areas.

公开(公告)号：US12283230B2

公开(公告)日：2025-04-22

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

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：US12262590B2

公开(公告)日：2025-03-25

申请号：US17224970

申请日：2021-04-07

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeongseok Kim ,  Youngwan Seo ,  Gyungsoon Park

IPC: H10K59/121 ,  H10K59/131 ,  H10K59/35 ,  H10K59/65

Abstract: A display apparatus includes: a substrate including a main display area, a component area including a transmission area, and a peripheral area at an outer side of the main display area; a main pixel circuit at the main display area; an auxiliary pixel circuit at the component area, and including a first wire; and a bottom metal layer between the substrate corresponding to the component area and the auxiliary pixel circuit, and electrically connected to the first wire.

公开(公告)号：US12106706B2

公开(公告)日：2024-10-01

申请号：US18224079

申请日：2023-07-20

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/061

Abstract: A pixel of a display device includes a first transistor including a top gate coupled to a first node, a first terminal, a second terminal coupled to a second node, and a bottom gate, a second transistor including a gate coupled to a writing signal line, a first terminal coupled to a data line, and a second terminal coupled to the first node, a storage capacitor coupled between the first node and the second node, a light emitting element coupled between the second node and a second power supply voltage line, and a seventh transistor including a gate coupled to an initialization signal line, a first terminal coupled to a bias voltage line, and a second terminal coupled to the bottom gate.

公开(公告)号：US12002429B2

公开(公告)日：2024-06-04

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: G09G3/00 ,  G06F3/041 ,  G09G3/20 ,  G09G3/3275 ,  H10K59/124 ,  H10K59/131 ,  H10K59/35

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

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：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：US11715426B2

公开(公告)日：2023-08-01

申请号：US17750472

申请日：2022-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G06F3/041 ,  G09G3/3275 ,  G09G3/20 ,  H10K59/124 ,  H10K59/131 ,  H10K59/35

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

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.