公开(公告)号：US20240386828A1

公开(公告)日：2024-11-21

申请号：US18435514

申请日：2024-02-07

Applicant: Samsung Display Co., LTD.

Inventor： Jongha Shin ,  DAYE MOON ,  KITAE YOON ,  KYOUNGHO LIM ,  WONWOO JANG ,  YOOSHIN CHON

IPC: G09G3/20

Abstract: A display apparatus includes a display panel and a display panel driver. The display panel driver drives the display panel. The display panel driver determines at least one selected from a first low luminance pattern and a second low luminance pattern, where the first lower luminance pattern includes a first low luminance area at a first end portion of the display panel in a vertical direction and a second low luminance area at a second end portion of the display panel in the vertical direction, and the second low luminance pattern includes a third low luminance area at a first end portion of the display panel in a horizontal direction and a fourth low luminance area at a second end portion of the display panel in the horizontal direction. The display panel driver determines a compensation area including a boundary between a low luminance area and a normal area.

公开(公告)号：US20220076635A1

公开(公告)日：2022-03-10

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

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：US20230230525A1

公开(公告)日：2023-07-20

申请号：US17895648

申请日：2022-08-25

Applicant: Samsung Display Co., Ltd.

Inventor： WONWOO JANG ,  SEUNGHO PARK

IPC: G09G3/20 ,  G09G3/3208 ,  G06T7/13

CPC classification number: G09G3/2096 ,  G09G3/3208 ,  G06T7/13 ,  G09G2320/0276 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2320/0233

Abstract: A display device includes a display panel and a driving circuit that receives an input image signal and provides an output image signal corresponding to the input image signal to the display panel. The driving circuit includes an edge and slope detector that detects an edge of the input image signal, and determines an angle between the edge and a virtual line parallel to a first direction, a weight calculator that determines a weight, based on the edge and the angle, and a rendering module that compensates for the input image signal, based on the weight, and outputs the output image signal. The weight is determined through an arithmetic operation between the edge and the angle.

公开(公告)号：US20220366843A1

公开(公告)日：2022-11-17

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

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：US20240386836A1

公开(公告)日：2024-11-21

申请号：US18428722

申请日：2024-01-31

Applicant: Samsung Display Co., LTD.

Inventor： WONWOO JANG ,  DAYE MOON ,  Jongha Shin ,  KITAE YOON ,  KYOUNGHO LIM ,  YOOSHIN CHON

IPC: G09G3/3291

Abstract: A display device includes a driving controller which generates output image data based on input image data, a data driver which generates data voltages based on the output image data, and a display panel which displays an image based on the data voltages. The driving controller may generate a plurality of edge values in a first direction for a plurality of blocks based on a plurality of luminance values for the plurality of blocks that are dividing the display panel, determine a boundary area in the first direction based on a continuity of edge blocks in a second direction crossing the first direction, the edge blocks being determined based on the plurality of edge values, and generate the output image data based on the input image data and compensation data for decreasing a luminance of the image corresponding to the boundary area.

公开(公告)号：US20230316980A1

公开(公告)日：2023-10-05

申请号：US18100188

申请日：2023-01-23

Applicant: Samsung Display Co., Ltd.

Inventor： WONWOO JANG

IPC: G09G3/20

CPC classification number: G09G3/2044 ,  G09G2310/027 ,  G09G2300/0819 ,  G09G2320/0285 ,  G09G3/3225

Abstract: A display device includes a display panel and a panel driving block that controls driving of the display panel. The panel driving block includes a dithering judgment block, a memory, and a dithering compensation block. The dithering judgment block determines whether a first sub-image signal corresponding to a first image requiring dithering is included in the input image signal. The dithering compensation block reads out dithering patterns, which correspond to the first sub-image signal, from among the plurality of dithering patterns from the memory, generates a compensation dithering pattern by the read dithering patterns and a random number table, and outputs a correction image signal through the first sub-image signal and the compensation dithering pattern. The first image is displayed in a stain area, and the stain area includes at least one unit area.

公开(公告)号：US20240379068A1

公开(公告)日：2024-11-14

申请号：US18420220

申请日：2024-01-23

Applicant: Samsung Display Co., LTD.

Inventor： DAYE MOON ,  Jongha Shin ,  KITAE YOON ,  KYOUNGHO LIM ,  WONWOO JANG ,  YOOSHIN CHON

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A display device includes: a display panel including a plurality of pixels, and a panel driver configured to drive the display panel based on input image data. The panel driver determines whether a fixed image is displayed in an outermost region of the display panel based on the input image data, and decreases a luminance of the outermost region when that the fixed image is displayed in the outermost region is determined.

公开(公告)号：US20240321174A1

公开(公告)日：2024-09-26

申请号：US18530941

申请日：2023-12-06

Applicant: Samsung Display Co., LTD.

Inventor： WONWOO JANG ,  SEUNGHO PARK

IPC: G09G3/20 ,  G06T7/13

CPC classification number: G09G3/2096 ,  G06T7/13 ,  G09G2300/0452 ,  G09G2340/14

Abstract: A display device includes a display panel which displays an image based on an output image signal and a driving controller which generates the output image signal based on an input image signal. The driving controller includes an edge detector which generates an edge value for detecting an edge of the image using a plurality of filters having different sizes from each other, a weight calculator which calculates a weight based on the edge value, and a renderer which converts the input image signal to the output image signal based on the weight.

公开(公告)号：US20230274706A1

公开(公告)日：2023-08-31

申请号：US18313837

申请日：2023-05-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： WONWOO JANG ,  SEUNGHO PARK ,  KYOUNGHO LIM

IPC: G09G3/3275

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

Abstract: A display device includes a display panel, a controller, and a data driver. The display panel includes a plurality of pixels. The controller receives image data including data representing a logo, detects a logo region including the logo in the image data, determines a correction gain based on a quotient of a second gray level of a peripheral region adjacent to the logo region and a first gray level of 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.