公开(公告)号：US20240046886A1

公开(公告)日：2024-02-08

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: G09G3/3291

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：US20230162667A1

公开(公告)日：2023-05-25

申请号：US17870206

申请日：2022-07-21

Applicant: Samsung Display Co., LTD.

Inventor： HEESOOK PARK ,  BONGGYUN KANG ,  KYOUNGHO LIM

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2320/0257 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2310/027 ,  G09G2320/0673 ,  G09G2320/043

Abstract: A display device includes: a display panel, which displays an image; a driving controller, which determines a gain reduction region based on input image data input to the display panel, and generates a data signal by correcting the input image data by applying a gain to the input image data to correspond to the gain reduction region; and a data driver, which converts the data signal into a data voltage to output the data voltage to the display panel. The driving controller is configured to generate first, second, and third data signals by correcting first, second, and third input image data input to first, second, and third regions of the display panel by applying first, second, and third gain values to the first, second, and third input image data, respectively.

公开(公告)号：US20220165200A1

公开(公告)日：2022-05-26

申请号：US17445941

申请日：2021-08-25

Applicant: Samsung Display Co., Ltd.

Inventor： HEESOOK PARK ,  KIHYUN PYUN

IPC: G09G3/20

Abstract: An embodiment of a display apparatus includes a display panel, a driving controller, and a data driver. In operation the driving controller determines a gain reducing area based on an edge load of input image data corresponding to an edge area of the display panel and compensates a grayscale value of the input image data corresponding to the gain reducing area to generate a data signal. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel.

公开(公告)号：US20230017624A1

公开(公告)日：2023-01-19

申请号：US17952627

申请日：2022-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： KIHYUN PYUN ,  HEESOOK PARK

IPC: G09G3/20

Abstract: A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary gray scale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

公开(公告)号：US20220392389A1

公开(公告)日：2022-12-08

申请号：US17891861

申请日：2022-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： HEESOOK PARK ,  KIHYUN PYUN

IPC: G09G3/20

Abstract: An embodiment of a display apparatus includes a display panel, a driving controller, and a data driver. In operation the driving controller determines a gain reducing area based on an edge load of input image data corresponding to an edge area of the display panel and compensates a grayscale value of the input image data corresponding to the gain reducing area to generate a data signal. The data driver converts the data signal to a data voltage and outputs the data voltage to the display panel.

公开(公告)号：US20230162656A1

公开(公告)日：2023-05-25

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 ,  G09G2300/0413 ,  G09G2310/0275 ,  G09G2320/046 ,  G09G2320/0257 ,  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：US20230033713A1

公开(公告)日：2023-02-02

申请号：US17874232

申请日：2022-07-26

Applicant: Samsung Display Co, LTD.

Inventor： KIHYUN PYUN ,  HEESOOK PARK

IPC: G09G3/20

Abstract: A screen saver controller including a load calculator configured to generate load data of an image represented by input image data, a maximum gray level calculator configured to generate maximum gray level data of the image represented by the input image data, and a screen saver data generator configured to determine a gain of a screen saver mode based on the load data and the maximum gray level data when the screen saver mode is operated and to generate screen saver data based on the input image data and the gain.

公开(公告)号：US20210375181A1

公开(公告)日：2021-12-02

申请号：US17235161

申请日：2021-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： KIHYUN PYUN ,  HEESOOK PARK

IPC: G09G3/20

Abstract: A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary grayscale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

公开(公告)号：US20240038133A1

公开(公告)日：2024-02-01

申请号：US18109995

申请日：2023-02-15

Applicant: Samsung Display Co., Ltd.

Inventor： HEESOOK PARK ,  KYOUNGHO LIM ,  DAYE MOON

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2330/021 ,  G09G2320/0233

Abstract: A display device includes a display panel divided into panel blocks including pixels, and a display panel driver which drives the display panel, sets a time point to which a set time elapses from a time point when input image data is determined to be a still image as an operation time point, decreases a luminance gain from the operation time point, determines the set time based on accumulated deterioration amounts of the panel blocks, and applies the luminance gain to the input image data.

公开(公告)号：US20230410711A1

公开(公告)日：2023-12-21

申请号：US18135273

申请日：2023-04-17

Applicant: SAMSUNG DISPLAY CO., LTD

Inventor： KIHYUN PYUN ,  HEESOOK PARK

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2330/028 ,  G09G2320/0673 ,  G09G2320/0223 ,  G09G2330/021

Abstract: A display apparatus including: a display panel including a plurality of display blocks; and a display panel driver configured to generate a power voltage based on a maximum grayscale value of input image data and a position of a maximum load block among the display blocks and configured to output the power voltage to the display panel, wherein the maximum load block has a largest load of the input image data among the display blocks.