公开(公告)号：US20250046226A1

公开(公告)日：2025-02-06

申请号：US18629325

申请日：2024-04-08

Applicant: Samsung Display Co., LTD.

Inventor： SEONGHEON CHO ,  KUK-HWAN AHN ,  SEUNGJAE LEE ,  DAE-GWANG JANG

IPC: G09G3/20

Abstract: A display apparatus includes a driving controller, a data driver and a display panel. The driving controller is configured to determine an average load of a unit area based on an average grayscale value of the unit area and a pixel area ratio of the unit area, to determine a temperature diffusion load of the unit area based on average loads, temperature diffusion ratios and weight ratios of adjacent unit areas adjacent to the unit area and to compensate input image data based on the average load of the unit area and the temperature diffusion load of the unit area to generate a compensated data signal. The data driver is configured to convert the compensated data signal into a data voltage. The display panel is configured to display an image based on the data voltage.

公开(公告)号：US20220068216A1

公开(公告)日：2022-03-03

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：US20240265852A1

公开(公告)日：2024-08-08

申请号：US18527090

申请日：2023-12-01

Applicant: Samsung Display Co., Ltd.

Inventor： SEONGHEON CHO ,  KUK-HWAN AHN ,  SEUNGJAE LEE ,  DAE-GWANG JANG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/041

Abstract: A display device includes: a display panel displaying an image; and a drive controller receiving an image signal, and driving the plurality of pixels, and including a heat emitting controller, wherein the heat emitting controller includes: an average region setter receiving the image signal, setting, to one pixel region, some pixels of the plurality of pixels, and extracting an average gray level, based on gray levels of the some pixels of the plurality of pixels to set an average region from the pixel region; a diffusion region setter substituting a diffusion region, which is set to have a temperature corresponding to the average gray level, into the average region; and a look-up table map generator generating a look-up table map by predicting, based on the diffusion region, heat emitted from an inner part of a display region of the display panel and varied depending on the image.

公开(公告)号：US20230087545A1

公开(公告)日：2023-03-23

申请号：US17991197

申请日：2022-11-21

Applicant: Samsung Display Co., Ltd.

Inventor： CHANGNOH YOON ,  SOON-DONG KIM ,  SANGAN KWON ,  SEUNGJAE LEE ,  JUNHEYUNG JUNG

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel including pixels connected to data lines and scan lines, a data driving circuit which drives the data lines, a scan driving circuit which drives the scan lines, and a driving controller divides the display panel into first and second display regions, controls the data driving circuit and the scan driving circuit to drive the first display region at a first driving frequency and to drive the second display region at a second driving frequency lower than the first driving frequency, and sets third driving frequencies respectively corresponding to horizontal lines in a boundary region, which is defined by a portion of the second display region adjacent to the first display region, during a multi-frequency mode. Each of the third driving frequencies has a frequency level between the first driving frequency and the second driving frequency.

公开(公告)号：US20230077512A1

公开(公告)日：2023-03-16

申请号：US17981762

申请日：2022-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： SOON-DONG KIM ,  SANGAN KWON ,  CHANGNOH YOON ,  SEUNGJAE LEE

IPC: G09G3/3291 ,  G09G3/3266

Abstract: The display device includes a display panel in which a first display area and a second display area adjacent to the first display area are defined, a data driving circuit which drives the plurality of data lines, a scan driving circuit which drives the plurality of scan lines, and a driving controller which receives an image signal and a control signal, and controls the data driving circuit and the scan driving circuit based on an operation mode, where the driving controller includes a luminance deviation compensation unit which compensates for luminance deviation of the first display area and the second display area when the operation mode is a multi-frequency mode in which the first display area is driven at a first frequency and the second display area is driven at a second frequency different from the first frequency.

公开(公告)号：US20230067214A1

公开(公告)日：2023-03-02

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 ,  G09G5/14

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：US20220068220A1

公开(公告)日：2022-03-03

申请号：US17317071

申请日：2021-05-11

Applicant: Samsung Display Co., Ltd.

Inventor： SOON-DONG KIM ,  SANGAN KWON ,  CHANGNOH YOON ,  SEUNGJAE LEE

IPC: G09G3/3291 ,  G09G3/3266

Abstract: The display device includes a display panel in which a first display area and a second display area adjacent to the first display area are defined, a data driving circuit which drives the plurality of data lines, a scan driving circuit which drives the plurality of scan lines, and a driving controller which receives an image signal and a control signal, and controls the data driving circuit and the scan driving circuit based on an operation mode, where the driving controller includes a luminance deviation compensation unit which compensates for luminance deviation of the first display area and the second display area when the operation mode is a multi-frequency mode in which the first display area is driven at a first frequency and the second display area is driven at a second frequency different from the first frequency.

公开(公告)号：US20240377967A1

公开(公告)日：2024-11-14

申请号：US18776839

申请日：2024-07-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KUK-HWAN AHN ,  SEUNGJAE LEE ,  DAE-GWANG JANG ,  SEONGHEON CHO

IPC: G06F3/06 ,  G06F12/02

Abstract: A display device includes a display panel including pixels, driving chips applying data voltages to the pixels through channels; and a timing controller determining the data voltages output from the channels by each of the driving chips based on input image data, determining a load ratio of each of the driving chips based on the data voltages, generating a current temperature profile of a first pixel row based on the load ratio of each of the driving chips, generating a current temperature profile of a second pixel row based on the load ratio of each of the driving chips, and generating a two-dimensional temperature profile based on the current temperature profiles of the first pixel row and the second pixel row.

公开(公告)号：US20240169895A1

公开(公告)日：2024-05-23

申请号：US18348627

申请日：2023-07-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： KUK-HWAN AHN ,  SEUNGJAE LEE ,  DAE-GWANG JANG ,  SEONGHEON CHO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2330/045

Abstract: A display device includes a display panel including pixels, driving chips applying data voltages to the pixels through channels; and a timing controller determining the data voltages output from the channels by each of the driving chips based on input image data, determining a load ratio of each of the driving chips based on the data voltages, generating a current temperature profile of a first pixel row based on the load ratio of each of the driving chips, generating a current temperature profile of a second pixel row based on the load ratio of each of the driving chips, and generating a two-dimensional temperature profile based on the current temperature profiles of the first pixel row and the second pixel row.

公开(公告)号：US20220139326A1

公开(公告)日：2022-05-05

申请号：US17511931

申请日：2021-10-27

Applicant: Samsung Display Co., Ltd.

Inventor： WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  SEUNGJAE LEE

IPC: G09G3/3266

Abstract: A display device includes a display panel which displays an image during a plurality of driving frames, a panel driver which drives the display panel, and a driving controller which controls a driving operation of the panel driver. The driving controller divides the display panel into a first display area and a second display area based on an image signal. Each of the plurality of driving frames includes a full frame in which the first display area and the second display area are driven, and a plurality of partial frames in which only the first display area is driven. A number of the plurality of partial frames included in each of the plurality of driving frames is changed.