公开(公告)号：US12154489B2

公开(公告)日：2024-11-26

申请号：US18234477

申请日：2023-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Sangan Kwon ,  Soon-Dong Kim ,  Hui Nam ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/32 ,  G09G3/20

Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.

公开(公告)号：US11928998B2

公开(公告)日：2024-03-12

申请号：US18108838

申请日：2023-02-13

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/00 ,  G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/035 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2310/027 ,  G09G2380/02

Abstract: A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver which drives the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. In a case where the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.

公开(公告)号：US11915639B2

公开(公告)日：2024-02-27

申请号：US18108626

申请日：2023-02-12

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Seon Young Choi ,  Sangan Kwon ,  Soon-Dong Kim ,  Jin-Wook Yang ,  Changnoh Yoon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021 ,  G09G2380/02

Abstract: A display panel of a display device is divided into a first display region and a second display region. The second display region includes a boundary region adjacent to the first display region and a non-boundary region opposite to the first display region with respect to the boundary region. The driving controller outputs the voltage control signal, such that the first voltage in a first high voltage level and the second voltage in a first low voltage level are generated when the first display region is driven. The driving controller outputs the voltage control signal, such that the first voltage in a second high voltage level lower than the first high voltage level and the second voltage in a second low voltage level higher than the first low voltage level are generated, when the non-boundary region of the second display region is driven.

公开(公告)号：US11854470B2

公开(公告)日：2023-12-26

申请号：US17982889

申请日：2022-11-08

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Sangan Kwon ,  Soon-Dong Kim ,  Hui Nam ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2330/021

Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.

公开(公告)号：US11842690B2

公开(公告)日：2023-12-12

申请号：US17880734

申请日：2022-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Sangan Kwon ,  Soon-Dong Kim ,  Hui Nam ,  Bonghyun You ,  Changnoh Yoon ,  Jaekeun Lim

IPC: G09G3/3266 ,  G09G3/3225

CPC classification number: G09G3/3266 ,  G09G3/3225 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2330/021

Abstract: Provided is a scan driver of a display device, and the scan driver includes a driving circuit and a masking circuit. The driving circuit includes a control circuit, a first output circuit, and a second output circuit. The control circuit outputs a first control signal and a second control signal. The first output circuit is connected to a first output terminal which outputs a first scan signal and a first voltage terminal and operates in response to a first control signal. The second output circuit is connected to a first output terminal and a second voltage terminal and operates in response to a second control signal. The masking circuit outputs a second scan signal to a second output terminal in response to the first control signal and the second control signal and is connected to an input terminal to which a masking signal is supplied.

公开(公告)号：US11790858B2

公开(公告)日：2023-10-17

申请号：US17994419

申请日：2022-11-28

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Junhee Moon ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2320/0233

Abstract: Provided is a display device. The display device includes a display panel that includes a first display region and a second display region, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to control the data driving circuit and the scan driving circuit so as to operate the first display region and the second display region at different frequencies when an operation mode is a multi-frequency mode, wherein the driving controller changes the operation mode to a normal mode when a difference between an image signal of a current frame of the first display region and an image signal of a previous frame of the first display region is equal to or greater than a reference value during the multi-frequency mode.

公开(公告)号：US11495175B2

公开(公告)日：2022-11-08

申请号：US17199680

申请日：2021-03-12

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Hui Nam ,  Soon-Dong Kim ,  Changnoh Yoon ,  Seungjae Lee

IPC: G09G3/3233 ,  G09G5/14 ,  G09G3/00

Abstract: A display device includes a plurality of pixels arranged in m rows and n columns, where the pixels receive write scan signals, data voltages and compensation scan signals, a plurality of write scan lines which provides the write scan signals to the pixels, a plurality of data lines which provides the data voltages to the pixels, and a plurality of compensation scan lines which provides the compensation scan signals to the pixels, wherein in h-th to p-th frames, the data voltages are applied to pixels arranged in first to i-th rows, and in h-th to (h+k)-th frames, the data voltages are applied to pixels of a row unit by increasing sequentially the number of the row unit to which the data voltages are applied in at least one row unit from an i-th row to an (i+1)-th row.