公开(公告)号：US20240029613A1

公开(公告)日：2024-01-25

申请号：US18373096

申请日：2023-09-26

Applicant: SILICON WORKS CO., LTD.

Inventor： Jun Young Park ,  Ki Taek Kim

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G3/2007 ,  G09G2320/0673 ,  G09G2320/0626 ,  G09G2320/0242 ,  G09G2320/0233

Abstract: A display device includes a display panel configured to display an image; a restoring unit configured to receive a data packet and sequentially restoring display data corresponding to red, green and blue colors of sub-pixels from the data packet; a mura compensation circuit configured to receive the restored display data, generate adjusted compensation values and compensate for mura on the display data corresponding to the colors of the sub-pixels using the adjusted compensation values corresponding to location information of the sub-pixels having the mura; and an output circuit configured to receive the mura compensated display data and output a source signal to the display panel in accordance with the data packet, wherein the adjusted compensation values are generated by applying a first gain that is proportionally increased from 0% to 100% at a first region between a lowest gray scale and a first gray scale, a second gain that is 100% at a second region between the first gray scale and a second gray scale, and a third gain that is proportionally decreased from 100% to 0% at a third region between the second gray scale and a highest gray scale.

公开(公告)号：US20200211442A1

公开(公告)日：2020-07-02

申请号：US16723336

申请日：2019-12-20

Applicant: Silicon Works Co., Ltd.

Inventor： Ki Taek Kim ,  Jun Young Park ,  Doo Hwa Jang ,  Seung Wan Yu ,  Do Yeon Kim

IPC: G09G3/20

Abstract: A Mura correction driver which corrects Mura detected in a detection image obtained by photographing a display panel. The Mura correction driver uses Mura correction data including a position value of a Mura block for a display panel and coefficient values for the Mura block, and corrects display data corresponding to the position value of the Mura block, by using a Mura correction equation to which the coefficient values of the Mura block are applied.

公开(公告)号：US11114017B2

公开(公告)日：2021-09-07

申请号：US16723336

申请日：2019-12-20

Applicant: Silicon Works Co., Ltd.

Inventor： Ki Taek Kim ,  Jun Young Park ,  Doo Hwa Jang ,  Seung Wan Yu ,  Do Yeon Kim

IPC: G09G3/20

Abstract: A Mura correction driver which corrects Mura detected in a detection image obtained by photographing a display panel. The Mura correction driver uses Mura correction data including a position value of a Mura block for a display panel and coefficient values for the Mura block, and corrects display data corresponding to the position value of the Mura block, by using a Mura correction equation to which the coefficient values of the Mura block are applied.

公开(公告)号：US20200211502A1

公开(公告)日：2020-07-02

申请号：US16723713

申请日：2019-12-20

Applicant: Silicon Works Co., Ltd.

Inventor： Ki Taek Kim ,  Jun Young Park ,  Doo Hwa Jang ,  Seung Wan Yu ,  Do Yeon Kim

IPC: G09G5/10

Abstract: A Mura correction system which performs correction of a Mura pixel in a detection image obtained by photographing a display panel. The Mura correction system may detect an individual Mura pixel and realize correction on the detected one Mura pixel, and may realize block-based correction on Mura pixels of some region of a Mura block.

公开(公告)号：US10964241B2

公开(公告)日：2021-03-30

申请号：US16723103

申请日：2019-12-20

Applicant: Silicon Works Co., Ltd.

Inventor： Ki Taek Kim ,  Jun Young Park ,  Doo Hwa Jang ,  Seung Wan Yu ,  Do Yeon Kim

IPC: G09G3/00

Abstract: A Mura correction system which detects and corrects Mura in a detection image obtained by photographing a display panel. The Mura correction system detects a Mura block by checking, based on a brightness value, detection images obtained by photographing test images displayed on a display panel, generates coefficient values of coefficients of a Mura correction equation, and generates Mura correction data including a position value of the Mura block and the coefficient values of the coefficients of the Mura correction equation.

公开(公告)号：US20210201744A1

公开(公告)日：2021-07-01

申请号：US17126525

申请日：2020-12-18

Applicant: Silicon Works Co., Ltd.

Inventor： Jun Young Park ,  Ki Taek Kim

IPC: G09G3/20

Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.

公开(公告)号：US12175909B2

公开(公告)日：2024-12-24

申请号：US18373096

申请日：2023-09-26

Applicant: SILICON WORKS CO., LTD.

Inventor： Jun Young Park ,  Ki Taek Kim

IPC: G09G3/20

Abstract: A display device includes a display panel configured to display an image; a restoring unit configured to receive a data packet and sequentially restoring display data corresponding to red, green and blue colors of sub-pixels from the data packet; a mura compensation circuit configured to receive the restored display data, generate adjusted compensation values and compensate for mura on the display data corresponding to the colors of the sub-pixels using the adjusted compensation values corresponding to location information of the sub-pixels having the mura; and an output circuit configured to receive the mura compensated display data and output a source signal to the display panel in accordance with the data packet, wherein the adjusted compensation values are generated by applying a first gain that is proportionally increased from 0% to 100% at a first region between a lowest gray scale and a first gray scale, a second gain that is 100% at a second region between the first gray scale and a second gray scale, and a third gain that is proportionally decreased from 100% to 0% at a third region between the second gray scale and a highest gray scale.

公开(公告)号：US11823606B2

公开(公告)日：2023-11-21

申请号：US17968623

申请日：2022-10-18

Applicant: Silicon Works Co., Ltd.

Inventor： Jun Young Park ,  Ki Taek Kim

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G3/2007 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0626 ,  G09G2320/0673

Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.

公开(公告)号：US20230038703A1

公开(公告)日：2023-02-09

申请号：US17968623

申请日：2022-10-18

Applicant: Silicon Works Co., Ltd.

Inventor： Jun Young Park ,  Ki Taek Kim

IPC: G09G3/20

Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.

公开(公告)号：US11508281B2

公开(公告)日：2022-11-22

申请号：US17126525

申请日：2020-12-18

Applicant: Silicon Works Co., Ltd.

Inventor： Jun Young Park ,  Ki Taek Kim

IPC: G09G3/20

Abstract: Provided are a mura compensation circuit which prevents a change in color of a pixel upon mura compensations for the pixel and a driving apparatus for a display applying the same. The mura compensation circuit includes a mura memory configured to store mura information including location information of a pixel having mura and compensation values for colors thereof, a gain adjustment unit configured to provide adjustment compensation values generated by applying an adjustment gain having an identical ratio to the compensation values for the colors of the pixel, and a mura compensation unit configured to receive display data of the colors of the pixel and to perform mura compensations on the display data of the colors of the pixel using the adjustment compensation values corresponding to the location information.