公开(公告)号：US20240363056A1

公开(公告)日：2024-10-31

申请号：US18622488

申请日：2024-03-29

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32 ,  H01L27/12

CPC classification number: G09G3/32 ,  H01L27/124 ,  G09G2300/0426 ,  G09G2310/0267 ,  G09G2310/08

Abstract: A display panel includes: an element layer including a light emitting element; and a circuit layer including: a first transistor connected between a first drive voltage line and the light emitting element and operating according to a potential of a first node; a second transistor connected between a data line and a second node; a third transistor connected between the first transistor and the first node; a first capacitor electrode connected to the first node; a second capacitor electrode connected to the second node and facing the first capacitor electrode to form a first capacitor; a third capacitor electrode facing the second capacitor electrode to form a second capacitor and connected to the first drive voltage line; a first bridge electrode electrically connecting the first capacitor electrode and the third transistor; and a second bridge electrode electrically connecting the second capacitor electrode and the second transistor.

公开(公告)号：US20230085612A1

公开(公告)日：2023-03-16

申请号：US17881010

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： JUNHYUN PARK ,  JANGMI KANG ,  HYEONGSEOK KIM ,  MINJAE JEONG ,  MUKYUNG JEON

IPC: G09G3/00 ,  G09G3/32

Abstract: A display panel includes: a plurality of pixels, each of which includes a light emitting element and a pixel circuit for driving the light emitting element; a plurality of scan lines connected to the pixel circuit; and a data line connected to the pixel circuit. The pixel circuit includes: a transfer capacitor connected to a first node and a second node; a first circuit part including the first node; a second circuit including the second node and connected with the light emitting element; and a test unit connected to the first circuit part and the second circuit part.

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：US20230274690A1

公开(公告)日：2023-08-31

申请号：US17970623

申请日：2022-10-21

Applicant: Samsung Display Co., Ltd.

Inventor： MINJAE JEONG ,  JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line which supplies a first driving voltage, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor connected between the first node and a second node and including a gate electrode connected to a first scan line, a third transistor connected between the second electrode of the first transistor and the second node and including a gate electrode connected to a second scan line, and a booting capacitor connected between the second node and the second scan line.

公开(公告)号：US20250022411A1

公开(公告)日：2025-01-16

申请号：US18902926

申请日：2024-10-01

Applicant: Samsung Display Co., Ltd.

Inventor： MINJAE JEONG ,  JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/32

Abstract: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line which supplies a first driving voltage, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor connected between the first node and a second node and including a gate electrode connected to a first scan line, a third transistor connected between the second electrode of the first transistor and the second node and including a gate electrode connected to a second scan line, and a booting capacitor connected between the second node and the second scan line.

公开(公告)号：US20240096270A1

公开(公告)日：2024-03-21

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：US20240029641A1

公开(公告)日：2024-01-25

申请号：US18374070

申请日：2023-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： MINJAE JEONG ,  JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2310/08 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2300/043

Abstract: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line which supplies a first driving voltage, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor connected between the first node and a second node and including a gate electrode connected to a first scan line, a third transistor connected between the second electrode of the first transistor and the second node and including a gate electrode connected to a second scan line, and a booting capacitor connected between the second node and the second scan line.

公开(公告)号：US20240404457A1

公开(公告)日：2024-12-05

申请号：US18798814

申请日：2024-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： MINJAE JEONG ,  JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MUKYUNG JEON

IPC: G09G3/32

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：US20240021165A1

公开(公告)日：2024-01-18

申请号：US18204395

申请日：2023-06-01

Applicant: Samsung Display Co., Ltd.

Inventor： JANGMI KANG ,  HYEONGSEOK KIM ,  JUNHYUN PARK ,  MINJAE JEONG ,  MUKYUNG JEON

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2320/0247

Abstract: Provided is a scan driver for applying a bias voltage comprising a kth stage that includes an inputter transmitting an input signal to a first node, a stress reliever disposed between the first node and a second node, a carry signal outputter receiving a high-power-supply voltage and a second clock signal and outputting the second clock signal, an output signal outputter receiving the high-power-supply voltage and a third clock signal and outputting the third clock signal, a maintainer transmitting the first clock signal to a third node, and a stabilizer applying a first low-power-supply voltage to the third node and the high-power-supply voltage to the first node. The first and second clock signals selectively toggle between the high-power-supply voltage and the first low-power-supply voltage, the third clock signal selectively toggles between the high-power-supply voltage and a second low-power-supply voltage, and the bias voltage is adjusted as the second low-power-supply voltage varies.