公开(公告)号：US20240260356A1

公开(公告)日：2024-08-01

申请号：US18496918

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： SANG-UK LIM ,  HYUK KIM ,  SEUNGSOO BAEK ,  DOO-YOUNG LEE ,  BOYONG CHUNG

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

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

Abstract: A display device includes a first conductive layer disposed on a substrate and including a capacitor electrode, an active layer disposed on the first conductive layer and including a switching active pattern, the switching active pattern at least partially overlapping the capacitor electrode in a plan view and constituting a storage capacitor together with the capacitor electrode, a second conductive layer disposed on the active layer, a pixel electrode layer disposed on the second conductive layer and including a pixel electrode, the pixel electrode including a first part spaced apart from the switching active pattern in the plan view and a second part extending from the first part and overlapping the switching active pattern in the plan view, and a light emitting layer disposed on the pixel electrode layer.

公开(公告)号：US20230178031A1

公开(公告)日：2023-06-08

申请号：US17864764

申请日：2022-07-14

Applicant: Samsung Display Co., Ltd.

Inventor： BOYONG CHUNG ,  JONGHEE KIM ,  HYUK KIM ,  JOOSUN YOON ,  TAK-YOUNG LEE

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2330/028 ,  G09G2310/0272

Abstract: A display device includes a display panel including a plurality of pixels, a gate driver which provides a gate signal to corresponding pixels of the plurality of pixels, a data driver which provides a data voltage to the corresponding pixels of the plurality of pixels, a power voltage generator which provides a pixel power voltage to each of the plurality of pixels, and provides a gate power voltage to the gate driver, and a controller which provides a gate control signal to the gate driver. The pixel power voltage, the data voltage, and the gate control signal sequentially have a ground voltage level in response to a power-off signal.

公开(公告)号：US20220343857A1

公开(公告)日：2022-10-27

申请号：US17720907

申请日：2022-04-14

Applicant: Samsung Display Co., Ltd.

Inventor： YANG-HWA CHOI ,  HYUK KIM ,  JUNGHWAN HWANG

IPC: G09G3/3266

Abstract: A display device includes a plurality of pixels connected to a plurality of first scan lines, a plurality of second scan lines, and a plurality of data lines, where the pixels are arranged in a plurality of rows, a plurality of first stages connected to the first scan lines, a plurality of second stages connected to the second scan lines, and a data driver connected to the data lines. Each of the first scan lines is connected to pixels arranged in a corresponding row among the rows. Each of the second scan lines is commonly connected to pixels arranged in corresponding 8h rows among the plurality of rows, where h is a natural number.

公开(公告)号：US20240395191A1

公开(公告)日：2024-11-28

申请号：US18437029

申请日：2024-02-08

Applicant: Samsung Display Co., LTD.

Inventor： HYUK KIM ,  BOYONG CHUNG ,  DOO-YOUNG LEE ,  TAK-YOUNG LEE ,  SANG-UK LIM

IPC: G09G3/32 ,  G06F3/041 ,  G06F3/044

Abstract: A gate driving circuit includes a stage which outputs a scan signal based on a scan clock signal, a voltage of a first node, and a voltage of a second node, and outputs a sensing signal based on a sensing clock signal, a voltage of the first node, and a voltage of the second node. The stage includes a second sensing portion including transistors electrically connected in series and a first pull-up control portion including transistors electrically connected in series, the transistors including control electrodes electrically connected to each other. A first intermediate node between the transistors of the second sensing portion is separated from a second intermediate node between the transistors of the first pull-up control portion.

公开(公告)号：US20240161701A1

公开(公告)日：2024-05-16

申请号：US18212512

申请日：2023-06-21

Applicant: Samsung Display Co., Ltd.

Inventor： HYUK KIM ,  BOYONG CHUNG ,  JONGHEE KIM ,  DOO-YOUNG LEE ,  TAK-YOUNG LEE ,  SANG-UK LIM

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device includes a display panel and a gate driver. The gate driver includes an N-th stage (where N is a natural number) configured to output an N-th scan gate signal and output an N-th sensing gate signal. The N-th stage includes a compensator, a sixth transistor including a control electrode connected to a first node, and a ninth transistor including a control electrode connected to the first node. In a variable frequency mode, the compensator outputs a second signal to the first node in response to a first signal, and the sixth transistor does not output the N-th scan gate signal when the ninth transistor outputs the N-th sensing gate signal based on the sensing clock signal, the voltage of the first node, and the voltage of the second node.

公开(公告)号：US20240078962A1

公开(公告)日：2024-03-07

申请号：US18143011

申请日：2023-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： HYUK KIM ,  JONGHEE KIM ,  DOO-YOUNG LEE ,  CHANG-SOO LEE ,  SANG-UK LIM ,  BOYONG CHUNG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0267 ,  G09G2310/08 ,  H01L27/124

Abstract: Provided is a gate driving circuit comprising an N-th stage and an N+1-th stage. The N-th stage outputs an N-th scan gate signal based on an N-th scan clock signal, a voltage of a QN node, and a voltage of a QBN node and to output an N-th carry signal based on an N-th carry clock signal, the voltage of the QN node, and the voltage of the QBN node. The N+1-th stage outputs an N+1-th scan gate signal based on an N+1-th scan clock signal, a voltage of a QN+1 node, and the voltage of the QBN node and an N+1-th carry signal based on an N+1-th carry clock signal, the voltage of the QN+1 node, and the voltage of the QBN node. The N-th stage and the N+1-th stage share an inverting circuit. The inverting circuit controls the QBN node based on a third signal. N is a positive integer.

公开(公告)号：US20240096283A1

公开(公告)日：2024-03-21

申请号：US18197988

申请日：2023-05-16

Applicant: Samsung Display Co., LTD.

Inventor： SANG-UK LIM ,  JONGHEE KIM ,  HYUK KIM ,  SEUNGHYUN PARK ,  DOO-YOUNG LEE ,  BOYONG CHUNG

IPC: G09G3/3258 ,  G09G3/20 ,  G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3258 ,  G09G3/2096 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/045 ,  G09G2330/021 ,  G09G2330/028

Abstract: A display device includes a display panel including pixels, a gate driver which sequentially applies scan signals to pixel rows including the pixels at a scan frequency, a data driver which applies data voltages to the pixels, a power voltage generator which applies a power voltage to the pixels, and a timing controller which sets a ripple frequency of the power voltage to deviate from the scan frequency by a predetermined reference ratio or more.

公开(公告)号：US20220115494A1

公开(公告)日：2022-04-14

申请号：US17361712

申请日：2021-06-29

Applicant: Samsung Display Co., LTD.

Inventor： HYUK KIM ,  YANG-HWA CHOI ,  JUNGHWAN HWANG

IPC: H01L27/32

Abstract: A display device includes: a plurality of pixels disposed in a display area; a plurality of first voltage lines electrically connected to the plurality of pixels, the plurality of first voltage lines including a plurality of first common voltage lines extending in a first direction and a plurality of second common voltage lines extending in a second direction intersecting the first direction; and a plurality of second voltage lines electrically connected to the pixels, the plurality of second voltage lines including a plurality of first driving voltage lines extending in the first direction and a plurality of second driving voltage lines extending in the second direction. The number of the first common voltage lines are greater than the number of the first driving voltage lines.