公开(公告)号：US20240420641A1

公开(公告)日：2024-12-19

申请号：US18815757

申请日：2024-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Haijung In ,  Chulkyu Kang ,  Soongi Kwon ,  Minjeong Kim ,  Kimyeong Eom

IPC: G09G3/3258

Abstract: A driver includes a stage that includes a first controller, a second controller, and a first output unit. The first controller controls a voltage level of a first node. The second controller controls voltage levels of a second node and a third node to be equal to the voltage level of a first node or an opposite voltage level of the voltage level of the first node, and controls a voltage level of a fifth node to be equal to the opposite voltage level of the voltage level of the first node. The first output unit may output a gate control signal, which has a first voltage when the second node and the third node is in an on-voltage level state, and has a second voltage when the fifth node is in an on-voltage level state.

公开(公告)号：US11996051B2

公开(公告)日：2024-05-28

申请号：US18106431

申请日：2023-02-06

Applicant: Samsung Display Co., Ltd.

Inventor： Ji-Hyun Ka ,  Nackhyeon Keum ,  Kimyeong Eom

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266 ,  G09G2300/0876

Abstract: A display panel of an OLED display device includes a first pixel configured to emit first color light, a second pixel configured to emit second color light, and a third pixel configured to emit third color light. Each of the first, second and third pixels includes at least two transistors, at least one capacitor and an organic light emitting diode. At least one of at least two transistors or at least one capacitor included in the third pixel has a size different from a size of a corresponding one at least two transistors or at least one capacitor included in the first pixel or the second pixel.

公开(公告)号：US11430858B2

公开(公告)日：2022-08-30

申请号：US16294306

申请日：2019-03-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hwayoung Song ,  Jihyun Ka ,  Kimyeong Eom ,  Kwangsae Lee

IPC: H01L27/32

Abstract: A display panel includes a substrate including a first non-display area surrounding a transmission area, a display area on an outer portion of the first non-display area, and a second non-display area surrounding the display area, driving thin film transistors and display elements in the display area, a first power supply line in the second non-display area and extending in a first direction, first driving voltage lines and second driving voltage lines extending in a second direction intersecting with the first direction and spaced apart from each other with the transmission area therebetween, and a power bus line connected to the second driving voltage lines in the first non-display area or second non-display area, the power bus line extending in the first direction. A length of the power bus line in the first direction is less than a length of the first power supply line in the first direction.

公开(公告)号：US20240321201A1

公开(公告)日：2024-09-26

申请号：US18440062

申请日：2024-02-13

Applicant: Samsung Display Co., Ltd.

Inventor： Hwayoung Song ,  Jihyun Ka ,  Kimyeong Eom

IPC: G09G3/3233 ,  G09G3/3266 ,  H10K59/131

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  H10K59/131 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2330/021

Abstract: A display apparatus includes a pixel, a first scan driving circuit that transmits a first scan signal to the pixel based on a first gate voltage, a second gate voltage having a level lower than a level of the first gate voltage, and a first clock signal, and a second scan driving circuit that transmits a second scan signal to the pixel based on a third gate voltage having a level different from the level of the first gate voltage, a fourth gate voltage having a level lower than the level of the third gate voltage, and a second clock signal.

公开(公告)号：US12039939B2

公开(公告)日：2024-07-16

申请号：US18111197

申请日：2023-02-17

Applicant: Samsung Display Co., Ltd.

Inventor： Hai-Jung In ,  Kimyeong Eom ,  Ji-Hyun Ka

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/08 ,  G09G2330/04

Abstract: An emission driver includes a plurality of stages. A stage of the plurality of stages receives a start signal, a first clock signal, a second clock signal, a protection signal, a first gate power voltage and a second gate power voltage and outputs an emission signal. The stage of the plurality of stages includes a pull-up switching element connected between a first gate power voltage terminal which receives the first gate power voltage and an emission signal output terminal which outputs the emission signal, a pull-down switching element connected between a second gate power voltage terminal which receives the second gate power voltage and the emission signal output terminal and a protection switching element which applies the first gate power voltage to a control electrode of the pull-down switching element in response to the protection signal.

公开(公告)号：US11881169B2

公开(公告)日：2024-01-23

申请号：US17970261

申请日：2022-10-20

Applicant: Samsung Display Co., Ltd.

Inventor： Soongi Kwon ,  Wonkyu Kwak ,  Jihyun Ka ,  Chulkyu Kang ,  Yangwan Kim ,  Kimyeong Eom ,  Kyonghwan Oh ,  Minku Lee ,  Jintae Jeong

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861

Abstract: A pixel capable of adjusting a threshold voltage of a driving transistor, the pixel including: a display element configured to emit light during an emission period and including an anode and a cathode, the first transistor including an upper gate and a lower gate and configured to control a magnitude of a driving current flowing to the display element, a storage capacitor connected to the upper gate of the first transistor, and a second transistor configured to be turned on during a data writing period to transmit a data voltage to the first transistor, wherein a lower gate-source voltage of the first transistor has a first voltage level in the data writing period and a second voltage level in the emission period.

公开(公告)号：US11238794B2

公开(公告)日：2022-02-01

申请号：US17012798

申请日：2020-09-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji-Hyun Ka ,  Taehoon Kwon ,  Kimyeong Eom

IPC: G09G3/3233 ,  G09G3/36 ,  H01L27/32 ,  G02F1/1345

Abstract: A display apparatus includes a substrate which includes a first pixel area and a second pixel area. A third pixel area is spaced apart from the second pixel area. A notch peripheral area is adjacent to the first, second and third pixel areas. A plurality of pixels are provided in the first, second and third pixel areas. A first scan line is disposed on the substrate. The first scan line includes a first portion disposed in the second pixel area, a second portion disposed in the third pixel area, and a third portion which connects the first portion to the second portion. The third portion is disposed in the notch peripheral area. A second scan line is disposed on the substrate in the first pixel area. A surface area of the first scan line is from about 90% to about 110% of a surface area of the second scan line.

公开(公告)号：US10769994B2

公开(公告)日：2020-09-08

申请号：US16260775

申请日：2019-01-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji-Hyun Ka ,  Taehoon Kwon ,  Kimyeong Eom

IPC: G09G3/3233 ,  G09G3/36 ,  H01L27/32 ,  G02F1/1345

Abstract: A display apparatus includes a substrate which includes a first pixel area and a second pixel area. A third pixel area is spaced apart from the second pixel area. A notch peripheral area is adjacent to the first, second and third pixel areas. A plurality of pixels are provided in the first, second and third pixel areas. A first scan line is disposed on the substrate. The first scan line includes a first portion disposed in the second pixel area, a second portion disposed in the third pixel area, and a third portion which connects the first portion to the second portion. The third portion is disposed in the notch peripheral area. A second scan line is disposed on the substrate in the first pixel area. A surface area of the first scan line is from about 90% to about 110% of a surface area of the second scan line.

公开(公告)号：US20240412697A1

公开(公告)日：2024-12-12

申请号：US18813017

申请日：2024-08-23

Applicant: Samsung Display Co., Ltd.

Inventor： Nackhyeon Keum ,  Kimyeong Eom ,  Kwangsae Lee

IPC: G09G3/3266

Abstract: Provided is a gate driver including a plurality of stages, wherein each stage includes an output unit including a pull-up transistor and a pull-down transistor, and a second node controller configured to control a voltage of a second control node to which a gate of the pull-up transistor is connected, wherein the second node controller includes a first control transistor connected between the first clock terminal and the second control node and including a gate connected to the first control node, and a second control transistor including a gate connected to the gate of the first control transistor and configured to control a short circuit between the first clock terminal and a second clock terminal.

公开(公告)号：US11922886B2

公开(公告)日：2024-03-05

申请号：US18137348

申请日：2023-04-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Haijung In ,  Wonkyu Kwak ,  Kimyeong Eom

IPC: G09G3/3266

CPC classification number: G09G3/3266

Abstract: According to an embodiment, a scan driver includes a plurality of stages. An output controller of each of the stages includes a pull-down transistor, and the pull-down transistor includes a first gate and a second gate, where the first gate is electrically connected to a third control node or a node electrically connected to the third control node, and the second gate is connected to a third voltage input terminal to which a third voltage of a second voltage level is applied.