公开(公告)号：US20230196959A1

公开(公告)日：2023-06-22

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：US20230129065A1

公开(公告)日：2023-04-27

申请号：US17864798

申请日：2022-07-14

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGNOH YOON ,  SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM

IPC: G09G3/3225

Abstract: A display device includes a display panel, a power supply unit, and a low frequency offset compensator. The display panel includes a plurality of pixels. The power supply unit generates a first initialization voltage and a second initialization voltage and provides the first initialization voltage and the second initialization voltage to the pixels. The low frequency offset compensator selectively applies an offset to the second initialization voltage when the display panel is driven at a low frequency.

公开(公告)号：US20230039688A1

公开(公告)日：2023-02-09

申请号：US17967206

申请日：2022-10-17

Applicant: Samsung Display Co., Ltd.

Inventor： SOON-DONG KIM ,  SANGAN KWON ,  TAEHOON KIM ,  HUI NAM ,  JUNHEYUNG JUNG

IPC: G09G3/3233 ,  G09G5/14 ,  G09G3/3266

Abstract: A display apparatus includes a display panel including a pixel to display an image based on input image data, a driving controller which determines a driving frequency of a first display area of the display panel to be a first driving frequency and determines a driving frequency of a second display area of the display panel to be a second driving frequency less than the first driving frequency when the first display area displays a moving image and the second display area of the display panel displays a still image, and an emission driver which outputs a moving image emission signal corresponding to the first driving frequency and a still image emission signal corresponding to the second driving frequency to the display panel. A width of a non-emission period of the still image emission signal is greater than a width of a non-emission period of the moving image emission signal.

公开(公告)号：US20220351659A1

公开(公告)日：2022-11-03

申请号：US17566385

申请日：2021-12-30

Applicant: Samsung Display Co., Ltd.

Inventor： SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM ,  EUN SIL YUN ,  CHANGNOH YOON

IPC: G09G3/20

Abstract: A display apparatus is disclosed that comprises a display panel. The display panel includes a display region that includes a first display area and a second display area. A data driver is configured to provide a data voltage to the display region. A gate driver is configured to provide a compensation gate signal and an initialization gate signal to the display region. The gate driver includes a first stage and a second stage. A driving controller is configured to control the gate driver and the data driver. The driving controller is configured to determine a first driving frequency for the first display area and a second driving frequency for the second display area. The second stage is configured to provide the compensation gate signal having a pulse duration shorter than a pulse duration of the compensation gate signal provided to the display region by the first stage.

公开(公告)号：US20220139330A1

公开(公告)日：2022-05-05

申请号：US17358083

申请日：2021-06-25

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

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：US20220020303A1

公开(公告)日：2022-01-20

申请号：US17231388

申请日：2021-04-15

Applicant: Samsung Display Co., Ltd.

Inventor： SANGAN KWON ,  JINOH KWAG ,  SOON-DONG KIM ,  TAEHOON KIM ,  HUI NAM ,  BONGHYUN YOU ,  EUN SIL YUN ,  CHANGNOH YOON

IPC: G09G3/00 ,  G09G3/3275 ,  G09G3/3266 ,  G09G5/14

Abstract: A display device includes a driving controller which provides a first start signal and a second start signal corresponding to an operation mode to a scan driving circuit. The scan driving circuit includes a first scan driving circuit having first dummy driving stages and first driving stages which sequentially drive scan lines corresponding to a first display region among a plurality of scan lines in synchronization with the first start signal and a second scan driving circuit having second dummy driving stages and second driving stages which sequentially drive scan lines corresponding to a second display region among the plurality of scan lines in synchronization with the second start signal. The first dummy driving stages are disposed on a first side surface of the display panel and the second dummy driving stages are disposed on a second side surface of the display panel.

公开(公告)号：US20210390913A1

公开(公告)日：2021-12-16

申请号：US17460553

申请日：2021-08-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： HYO JIN LEE ,  SANGAN KWON ,  HUI NAM ,  JINYOUNG ROH ,  SEHYUK PARK

IPC: G09G3/3291

Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.

公开(公告)号：US20240290235A1

公开(公告)日：2024-08-29

申请号：US18536707

申请日：2023-12-12

Applicant: Samsung Display Co., LTD.

Inventor： SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM ,  GEUNJEONG PARK ,  CHANGNOH YOON

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/035 ,  G09G3/32 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A display device includes a display panel including pixels, and a panel driver which drive the display panel. Each frame period for the display panel includes N emission cycles, where N is an integer greater than 1. In a partial driving mode, the panel driver sets a black region of the display panel from a M/N point of the display panel along a direction perpendicular to an emission signal line, where M is an integer greater than 0 and less than N, and drives the display panel to display an image corresponding to input image data in a remaining region of the display panel other than the black region and to display a black image in the black region.

公开(公告)号：US20230395017A1

公开(公告)日：2023-12-07

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

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

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：US20230260449A1

公开(公告)日：2023-08-17

申请号：US17973983

申请日：2022-10-26

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGNOH YOON ,  SANGAN KWON ,  SOON-DONG KIM ,  TAEHOON KIM

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0278 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A display device includes a driving controller which outputs the output image signal corresponding to the input image signal when the first display area is driven, outputs the output image signal corresponding to a first bias signal when the boundary area is driven, and outputs the output image signal corresponding to a second bias signal different from the first bias signal when the non-boundary area is driven.