公开(公告)号：US11107409B2

公开(公告)日：2021-08-31

申请号：US16795798

申请日：2020-02-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Wook Yang ,  Soon-Dong Kim ,  Changnoh Yoon

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a display unit including a first pixel, a second pixel disposed adjacent to the first pixel in a first direction, a third pixel disposed adjacent to the first pixel in a second direction crossing the first direction, and a fourth pixel disposed adjacent to the third pixel in the first direction. Each of the first to fourth pixels includes a first sub-pixel and a second sub-pixel. The display device further includes a data driver that outputs a plurality of data voltages, a selective output unit that outputs the data voltages to the first to fourth pixels in a different order for each of a plurality of frames, and a scan driver that outputs a first scan signal to the first and second pixels and outputs a second scan signal, which is delayed from the first scan signal, to the third and fourth pixels.

公开(公告)号：US11869445B2

公开(公告)日：2024-01-09

申请号：US17864762

申请日：2022-07-14

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/0278

Abstract: A display device includes a display panel, a data driver, a scan driver, and a driving controller. The display panel includes a first display area and a second display area, which operate at different frequencies from each other in a multi-frequency mode. The driving controller controls the data driver and the scan driver. The driving controller generates boundary compensation data by compensating for boundary image signals, which are input to correspond to a boundary area of the first display area in the multi-frequency mode and drives the data driver based on a compensation image signal including the boundary compensation data.

公开(公告)号：US11862096B2

公开(公告)日：2024-01-02

申请号：US17863805

申请日：2022-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Dong Kim ,  Taehoon Kim ,  Jin-Wook Yang ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2310/0278 ,  G09G2330/021

Abstract: Disclosed is a display device including a display panel including a plurality of pixels and a voltage generator providing an anode initialization voltage to the pixels. The display panel is divided into a first display area operating at a first operating frequency and a second display area operating at a second operating frequency. While pixels, which correspond to the first display area, from among the plurality of pixels are driven, the anode initialization voltage has a first voltage level. While pixels in the second display area from among the plurality of pixels are driven, the anode initialization voltage has a second voltage level different from the first voltage level.

公开(公告)号：US11769458B2

公开(公告)日：2023-09-26

申请号：US17461261

申请日：2021-08-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Wook Yang ,  Soon-Dong Kim ,  Changnoh Yoon

IPC: G09G3/3275 ,  G09G3/3258 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3258 ,  G09G3/3266 ,  G09G2300/0452 ,  G09G2310/0297

Abstract: A display device includes a display unit including a first pixel, a second pixel disposed adjacent to the first pixel in a first direction, a third pixel disposed adjacent to the first pixel in a second direction crossing the first direction, and a fourth pixel disposed adjacent to the third pixel in the first direction. Each of the first to fourth pixels includes a first sub-pixel and a second sub-pixel. The display device further includes a data driver that outputs a plurality of data voltages, a selective output unit that outputs the data voltages to the first to fourth pixels in a different order for each of a plurality of frames, and a scan driver that outputs a first scan signal to the first and second pixels and outputs a second scan signal, which is delayed from the first scan signal, to the third and fourth pixels.

公开(公告)号：US11514866B2

公开(公告)日：2022-11-29

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：US11423846B2

公开(公告)日：2022-08-23

申请号：US17240111

申请日：2021-04-26

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the display panel is divided into a first display region and a second display region during a multi-frequency mode and the first display region and the second display region are respectively operated at different frequencies, where the driving controller changes an operation mode to a normal mode when a still image and a moving image are simultaneously displayed in the first display region during the multi-frequency mode and the duration of the still image reaches a predetermined time.

公开(公告)号：US11315457B2

公开(公告)日：2022-04-26

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 ,  G09G3/3233

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：US12249275B2

公开(公告)日：2025-03-11

申请号：US18613133

申请日：2024-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： Jihye Kim ,  Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Seok Hwan Roh ,  Changnoh Yoon

IPC: G09G3/00 ,  G09G3/32

Abstract: A display device which includes a display panel that includes a first display area and a second display area, and a driving controller. During a multi-frequency mode, the driving controller drives the first display area by using a first driving frequency and drives the second display area by using a second driving frequency. During the multi-frequency mode, when the second driving frequency changes from a first frequency to a second frequency, the driving controller drives the first display area and the second display area during at least one frame by using a base frequency, drives the first display area and the second display area during at least one second frame by using an intermediate frequency between the base frequency and the second frequency, and then drives the first display area by using the first driving frequency and drives the second display area by using the second frequency.

公开(公告)号：US12046198B2

公开(公告)日：2024-07-23

申请号：US17981599

申请日：2022-11-07

Applicant: Samsung Display Co., Ltd.

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

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

CPC classification number: G09G3/3233 ,  G09G5/14 ,  G09G3/035 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2310/0213 ,  G09G2320/10

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.

公开(公告)号：US11908380B2

公开(公告)日：2024-02-20

申请号：US17956111

申请日：2022-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Dong Kim ,  Taehoon Kim ,  Jin-Wook Yang ,  Changnoh Yoon

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2096 ,  G09G3/32 ,  G09G2300/0819 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2330/028

Abstract: A display device includes a display panel including a first pixel connected to a first initialization scan line and a first compensation scan line and a second pixel connected to a second initialization scan line and a second compensation scan line, a scan driving circuit which provides a first initialization scan signal to the first initialization scan line and the second initialization scan line in common and provides a first compensation scan signal and a second compensation scan signal to the first compensation scan line and the second compensation scan line, and a driving controller which controls the scan driving circuit. A delay time from a time point at which the first initialization scan signal transitions from an active level to an inactive level to a time point at which the first compensation scan signal transitions from the inactive level to the active level is less than one horizontal period.