公开(公告)号：US20210280138A1

公开(公告)日：2021-09-09

申请号：US17034720

申请日：2020-09-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joohyuk Yum ,  Byeongcheol Jang

IPC: G09G3/3291

Abstract: A display driving circuit includes: a grayscale voltage generator configured to generate a plurality of grayscale voltages by linearly dividing a plurality of gamma tap voltages; a gamma correction module configured to calculate a compensation value with respect to an input pixel value by using a compensation model, and configured to apply the compensation value to the input pixel value to generate a compensated pixel value; and a data driver configured to receive the plurality of grayscale voltages from the grayscale voltage generator, and configured to output a data voltage corresponding to a grayscale voltage to a display panel, the grayscale voltage being selected from the plurality of grayscale voltages based on the compensated pixel value.

公开(公告)号：US20220246108A1

公开(公告)日：2022-08-04

申请号：US17530710

申请日：2021-11-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Deoksoo PARK ,  Sungchul Yoon ,  Joohyuk Yum

IPC: G09G3/36 ,  G09G3/3225

Abstract: A display system includes: a host processor configured to compensate at least one set of frame data based on at least one set of panel map data including a plurality of offset values corresponding to a plurality of pixels of a display panel, generate at least one set of compensated frame data, and output the compensated frame data; and a display driver integrated circuit configured to receive the compensated frame data from the host processor, and control the display panel such that at least one frame image corresponding to the compensated frame data is displayed on the display panel.

公开(公告)号：US11158245B2

公开(公告)日：2021-10-26

申请号：US16816456

申请日：2020-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joohyuk Yum ,  Yonghoon Yu

IPC: G09G3/3208 ,  G09G3/3225 ,  G09G3/3233 ,  G09G3/3275 ,  G09G3/3283

Abstract: A method of compensating luminance in an electroluminescent display device including a display panel including pixels is provided. A global current value is generated based on input pixel values corresponding to the pixels where the global current value indicates a global current flowing through the display panel. With respect to each of the input pixel values, a global compensation value indicating a global luminance deviation according the global current is generated based on the input pixel value and the global current value. A gamma compensation value indicating a gamma distortion is generated based on the input pixel value where the gamma distortion is caused by compensating the input pixel value. A compensated pixel value is generated based on the input pixel value, the global compensation value and the gamma compensation value.

公开(公告)号：US11942055B2

公开(公告)日：2024-03-26

申请号：US17530710

申请日：2021-11-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Deoksoo Park ,  Sungchul Yoon ,  Joohyuk Yum

IPC: G09G3/36 ,  G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/3648 ,  G09G3/2092 ,  G09G3/3233 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/045 ,  G09G2320/046

Abstract: A display system includes: a host processor configured to compensate at least one set of frame data based on at least one set of panel map data including a plurality of offset values corresponding to a plurality of pixels of a display panel, generate at least one set of compensated frame data, and output the compensated frame data; and a display driver integrated circuit configured to receive the compensated frame data from the host processor, and control the display panel such that at least one frame image corresponding to the compensated frame data is displayed on the display panel.

公开(公告)号：US11501721B2

公开(公告)日：2022-11-15

申请号：US17034720

申请日：2020-09-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joohyuk Yum ,  Byeongcheol Jang

IPC: G09G3/3291

Abstract: A display driving circuit includes: a grayscale voltage generator configured to generate a plurality of grayscale voltages by linearly dividing a plurality of gamma tap voltages; a gamma correction module configured to calculate a compensation value with respect to an input pixel value by using a compensation model, and configured to apply the compensation value to the input pixel value to generate a compensated pixel value; and a data driver configured to receive the plurality of grayscale voltages from the grayscale voltage generator, and configured to output a data voltage corresponding to a grayscale voltage to a display panel, the grayscale voltage being selected from the plurality of grayscale voltages based on the compensated pixel value.