公开(公告)号：US10803784B2

公开(公告)日：2020-10-13

申请号：US16184283

申请日：2018-11-08

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil Kim ,  Gyusu Lee ,  Moonshik Kang ,  Jaesung Bae ,  Jaehoon Lee ,  Kyoungho Lim ,  Namjae Lim ,  Seokha Hong

IPC: G09G5/00 ,  G09G3/36 ,  G09G3/20 ,  G09G5/14 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a display panel including a plurality of pixels, the display panel including a first display area and a second display area, a first image processor which receives a first image data to be provided to the first display area, convert the first image data to a first convert data, and generate a first compensation data provided to the first display area using a first average filter, and a second image processor which receives a second image data to be provided to the second display area, converts the second image data to a second convert data, and generates a second compensation data provided to the second display area using a second average filter.

公开(公告)号：US11721271B2

公开(公告)日：2023-08-08

申请号：US17881560

申请日：2022-08-04

Applicant: Samsung Display Co., LTD.

Inventor： Ji-Woong Jeong ,  Boyoung An ,  Kyoungho Lim

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2320/0626

Abstract: A display device includes a display panel including pixels, and a driver to drive the display panel based on input image data. The driver performs a sensing operation for the pixels, to selectively perform the sensing operation by comparing grayscale values of the input image data and a reference grayscale value, to selectively perform a luminance control operation for controlling luminance of the display panel in response to a luminance control signal, and to adjust the reference grayscale value when the luminance control operation is performed.

公开(公告)号：US11749186B2

公开(公告)日：2023-09-05

申请号：US17708485

申请日：2022-03-30

Applicant: Samsung Display Co., Ltd.

Inventor： DongHyun Noh ,  Wonwoo Jang ,  Kyoungho Lim

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2320/0257 ,  G09G2320/0626

Abstract: A display device includes a display panel including a correction area in which a correction image including a logo image and a logo background image is displayed, and a panel driving block. The panel driving block includes a luminance correction block which corrects a luminance of the correction image, and the luminance correction block includes a first correction block which divides the correction area into a plurality of sub-areas, based on a distance from the logo image and generates an area correction signal for correcting the luminance of the correction image, a second correction block which generates a luminance correction signal for correcting the luminance of the correction image displayed in each of the sub-areas, based on a grayscale of the image signal and the area correction signal, and a third correction block which corrects the luminance of the correction image.

公开(公告)号：US20230245625A1

公开(公告)日：2023-08-03

申请号：US18132904

申请日：2023-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： JaeHoon LEE ,  Kyoungho Lim

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/0272 ,  G09G2320/046

Abstract: A display device including a display panel to display an image, a panel driver to drive the display panel, and a controller to control a driving of the panel driver. The controller includes a first circuit to receive frame data during an active period in synchronization with a vertical synchronization signal determining a start time point of a frame having the active period and a variable blank period, to shift a position of the frame data in response to a shift start signal to generate shift data, and to provide the shift data to the panel driver. A number of active periods of the vertical synchronization signal included in one period of the shift start signal differs from the number of active periods of the vertical synchronization signal included in another period of the shift start signal.

公开(公告)号：US20220093048A1

公开(公告)日：2022-03-24

申请号：US17377239

申请日：2021-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Kyoungho Lim

IPC: G09G3/3275

Abstract: A display device includes a display panel to display an image, a panel driver to drive the display panel, and a controller to control a driving of the panel driver. The controller includes a first circuit to receive frame data during an active period in synchronization with a vertical synchronization signal determining a start time point of a frame having the active period and a variable blank period, to shift a position of the frame data in response to a shift start signal to generate shift data, and to provide the shift data to the panel driver. A number of active periods of the vertical synchronization signal included in one period of the shift start signal differs from the number of active periods of the vertical synchronization signal included in another period of the shift start signal.

公开(公告)号：US12087237B2

公开(公告)日：2024-09-10

申请号：US18132904

申请日：2023-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Kyoungho Lim

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/0272 ,  G09G2320/046

Abstract: A display device including a display panel to display an image, a panel driver to drive the display panel, and a controller to control a driving of the panel driver. The controller includes a first circuit to receive frame data during an active period in synchronization with a vertical synchronization signal determining a start time point of a frame having the active period and a variable blank period, to shift a position of the frame data in response to a shift start signal to generate shift data, and to provide the shift data to the panel driver. A number of active periods of the vertical synchronization signal included in one period of the shift start signal differs from the number of active periods of the vertical synchronization signal included in another period of the shift start signal.

公开(公告)号：US12002408B2

公开(公告)日：2024-06-04

申请号：US17863854

申请日：2022-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Daye Moon ,  Bonggyun Kang ,  Kyoungho Lim ,  Heesook Park

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G3/20 ,  G09G2300/0413 ,  G09G2310/0275 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2330/021

Abstract: A display device includes a display panel and a display image shift controller. The display panel includes a display area in which a display image is displayed and a shift area located within the display area. The display image shift controller generates a route shift signal, where a reference point of the display image is shifted in the shift area based on the route shift signal. The route shift signal includes first and second routes corresponding to a path through which the reference point of the display image is shifted. The first route includes a first sub-route and a second sub-route. The second route includes a third sub-route and a fourth sub-route. The first, second, third, and fourth sub-routes are different from each other.

公开(公告)号：US11972737B2

公开(公告)日：2024-04-30

申请号：US18118096

申请日：2023-03-06

Applicant: Samsung Display Co., Ltd.

Inventor： Heesook Park ,  Daye Moon ,  Kyoungho Lim ,  Seulki Son

IPC: G09G3/3241 ,  G09G3/3283 ,  G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2320/0233 ,  G09G2320/0626

Abstract: A display device includes a display panel which includes a compensation area, an image processing device, a timing controller which includes an average luminance decrease rate calculator which calculates an average luminance decrease rate, a luminance decrease rate calculator which calculates a luminance decrease rate for the compensation area, and a data compensator which generates output image data by applying the luminance decrease rate for the compensation area to the input image data, and a data driver which provides data voltages generated based on the output image data to the display panel.

公开(公告)号：US11676543B2

公开(公告)日：2023-06-13

申请号：US17326684

申请日：2021-05-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Wonwoo Jang ,  Seungho Park ,  Kyoungho Lim

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/027 ,  G09G2360/16

Abstract: A display device includes a display panel, a controller, and a data driver. The display panel includes a plurality of pixels. The controller detects a logo region including a logo in image data, determines a correction gain based on a first average gray level of the logo region and a second average gray level of a peripheral region adjacent to the logo region, and generates corrected image data by correcting the image data based on the correction gain. The data driver provides data signals to the plurality of pixels based on the corrected image data.

公开(公告)号：US11657765B2

公开(公告)日：2023-05-23

申请号：US17377239

申请日：2021-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Lee ,  Kyoungho Lim

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/0272 ,  G09G2320/046

Abstract: A display device includes a display panel to display an image, a panel driver to drive the display panel, and a controller to control a driving of the panel driver. The controller includes a first circuit to receive frame data during an active period in synchronization with a vertical synchronization signal determining a start time point of a frame having the active period and a variable blank period, to shift a position of the frame data in response to a shift start signal to generate shift data, and to provide the shift data to the panel driver. A number of active periods of the vertical synchronization signal included in one period of the shift start signal differs from the number of active periods of the vertical synchronization signal included in another period of the shift start signal.