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：US20230154436A1

公开(公告)日：2023-05-18

申请号：US17943296

申请日：2022-09-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JINHO LEE ,  SEUNGHWAN PARK ,  YOUNGWOON CHOI ,  SUNGJAE PARK ,  SEUNGHO PARK ,  KITAE YOON ,  NAMJAE LIM

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2340/16 ,  G09G2360/16

Abstract: A display device including: a display panel including first through N-th pixel rows; and a panel driver configured to sequentially receive first through N-th line data for the first through the N-th pixel rows in each frame period, and to drive the display panel based on the first through the N-th line data, the panel driver including: a current control circuit configured to determine a current control value for a (K+1 )-th pixel row based on the first through K-th line data for the first through K-th pixel rows received in a current frame period and (K+1 )-th through the N-th line data for the (K+1)-th through the N-th pixel rows received in a previous frame period; and a data correction circuit configured to correct the (K+1)-th line data for the (K+1)-th pixel row based on the current control value in the current frame period.

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：US20240312402A1

公开(公告)日：2024-09-19

申请号：US18420109

申请日：2024-01-23

Applicant: Samsung Display Co., LTD.

Inventor： KYOUNGHO LIM ,  SEUNGHO PARK ,  JAEHOON LEE ,  YOONJU KIM ,  Jongha SHIN ,  KITAE YOON

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2320/0257 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2320/103 ,  G09G2340/0464

Abstract: Disclosed is a display device, which includes a display panel that displays an image, and a controller that receives image data corresponding to a frame and drives the display panel. The controller divides the image data into a plurality of blocks and determines whether the image is a fixed image based on an inter-frame variation of a block of the plurality of blocks. The controller changes an afterimage prevention operation mode when the number of blocks displaying the fixed image for a period equal to or greater than a first reference value among the plurality of blocks is equal to or greater than a second reference value.

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：US20180366055A1

公开(公告)日：2018-12-20

申请号：US15939728

申请日：2018-03-29

Applicant: Samsung Display Co., Ltd. ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： KITAE YOON ,  JAEHYOUNG PARK ,  YONGJO AHN

IPC: G09G3/20 ,  H04N19/625 ,  H04N19/176

Abstract: A method of compressing image data in a display apparatus in a unit of block including a plurality of pixels includes generating a residual signal by predicting image data of a plurality of second blocks disposed in a second horizontal line using image data of a plurality of first blocks disposed in a first horizontal line, where the second horizontal line is disposed under the first horizontal line, determining whether operating discrete cosine transform (“DCT”) to the residual signal or not based on an input image, compressing the image data of the second blocks and determining compressibility of image data of a plurality of third blocks disposed in a third horizontal line disposed under the second horizontal line based on compressibility of the image data of the second blocks.