公开(公告)号：US10922800B2

公开(公告)日：2021-02-16

申请号：US16380324

申请日：2019-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Jinpil Kim ,  Hoisik Moon ,  Jaesung Bae ,  Jeongwoon Lee ,  Namjae Lim

IPC: G09G3/36 ,  G06T5/00 ,  G06T5/50

Abstract: An image processing circuit includes a memory, a gamma converter which converts a first image data signal of a frame to a current image data signal thereof corresponding to first or second gamma types based on a spatial distribution pattern, a compression circuit which separates the current image data signal into first and second gamma signals corresponding to the first and second gamma types and compresses the first and second gamma signals to first and second compression gamma signals to store the first and second compression gamma signals, a decompression circuit which output a previous image data signal of a previous frame by decompressing the first and second compression gamma signals and combines first and second decompression gamma signals, and a gamma correction circuit which performs a gamma adjustment based on current and previous image data signals to output a second image data signal.

公开(公告)号：US11282478B2

公开(公告)日：2022-03-22

申请号：US16529640

申请日：2019-08-01

Applicant: Samsung Display Co., Ltd.

Inventor： Byoung Seok Yoo ,  Hoi Sik Moon ,  Jeongwoon Lee

IPC: G09G5/10

Abstract: An image data correcting device included in a display device includes a correction data memory and a correction calculator. The correction data memory stores sampling window select information indicating a sampling window selected from a plurality of sampling windows that are different from each other, and correction data obtained utilizing the selected sampling window with respect to the display device. The correction calculator receives image data, and corrects the image data based on the correction data for pixels at positions corresponding to the selected sampling window indicated by the sampling window select information.

公开(公告)号：US10789870B2

公开(公告)日：2020-09-29

申请号：US16189665

申请日：2018-11-13

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoon Kim ,  Hoi-Sik Moon ,  Mingyu Kim ,  Jeongwoon Lee

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/36 ,  G09G3/3208

Abstract: A display device including a display panel includes a plurality of pixels corresponding to a plurality of regions, an image compensator configured to obtain compensation data for the pixels by performing respective sampling compensation operations for the regions, and to generate compensated image data by compensating input image data based on the compensation data, the compensation data being generated by performing at least two of the sampling compensation operations based on respective sampling matrices having different sizes, and a display panel driver configured to drive the display panel to display an image corresponding to the compensated image data on the display panel.

公开(公告)号：US10902822B2

公开(公告)日：2021-01-26

申请号：US16507576

申请日：2019-07-10

Applicant: Samsung Display Co., Ltd.

Inventor： Byoung Seok Yoo ,  Hoi Sik Moon ,  Jeongwoon Lee

IPC: G09G5/10 ,  G09G5/39 ,  G09G3/36

Abstract: A display device includes: a first memory storing mura correcting data respectively corresponding to a plurality of reference pixels, each of the plurality of reference pixels comprising (n×m) pixels, the mura correcting data configured to correct mura of a reference pixel (‘n’ and ‘m’ are natural numbers being equal to or more than 2); a first correction controller configured to generate mura correcting data of a pixel using the mura correcting data of the reference pixel stored in the first memory; a second memory storing spot correcting data respectively corresponding to a plurality of spot-muras; a second correction controller configured to output the spot correcting data from the second memory based on a position data of the spot-mura; and an operation part configured to correct pixel data of the pixel using the mura correcting data and the spot correcting data of the pixel.

公开(公告)号：US20190197935A1

公开(公告)日：2019-06-27

申请号：US16189665

申请日：2018-11-13

Applicant: Samsung Display Co., Ltd.

Inventor： Heejoon Kim ,  Hoi-Sik Moon ,  Mingyu Kim ,  Jeongwoon Lee

IPC: G09G3/20

Abstract: A display device including a display panel includes a plurality of pixels corresponding to a plurality of regions, an image compensator configured to obtain compensation data for the pixels by performing respective sampling compensation operations for the regions, and to generate compensated image data by compensating input image data based on the compensation data, the compensation data being generated by performing at least two of the sampling compensation operations based on respective sampling matrices having different sizes, and a display panel driver configured to drive the display panel to display an image corresponding to the compensated image data on the display panel.