公开(公告)号：US20240386833A1

公开(公告)日：2024-11-21

申请号：US17478759

申请日：2021-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Kuk-Hwan AHN ,  HongSoo KIM ,  JUNHEYUNG JUNG ,  YOUNGWOOK YOO ,  Jungyu LEE ,  Hyunjun LIM ,  BYUNG KI CHUN

IPC: G09G3/20 ,  G06T1/20 ,  G09G5/18

Abstract: A driving controller of a display device includes a driving frequency controller for receiving an image signal, determining a driving frequency based on the image signal, and outputting a masking enable signal corresponding to the driving frequency, and an image processor for converting the image signal into a data signal and outputting the data signal, wherein the image processor sequentially converts, based on the masking enable signal being at an active level, a part of bits of the image signal into the data signal corresponding to a plurality of dither patterns.

公开(公告)号：US20210193017A1

公开(公告)日：2021-06-24

申请号：US16941451

申请日：2020-07-28

Applicant: Samsung Display Co., Ltd.

Inventor： Kuk-Hwan AHN ,  YOUNGWOOK YOO ,  Jungyu LEE ,  Hyunjun LIM ,  BYUNG KI CHUN

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3275

Abstract: A display device includes a display panel, a memory, a dithering processor, and a panel driver. The display panel includes a display surface, and the memory stores dither patterns with respect to at least one spot area included in the display surface. The dithering processor selects a dither pattern among the dither patterns in a predetermined time unit and outputs a compensation image signal corresponding to the dither pattern. The panel driver outputs a data signal corresponding to the spot area based on the compensation image signal. Each of the dither patterns includes a first grayscale area having a first grayscale value higher than a first target grayscale value of the spot area and a second grayscale area having a second grayscale value lower than the first target grayscale value.

公开(公告)号：US20220028355A1

公开(公告)日：2022-01-27

申请号：US17333678

申请日：2021-05-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： BYUNG KI CHUN ,  HYEONMIN KIM ,  YOUNGWOOK YOO ,  JUNGYU LEE ,  HYUNJUN LIM

IPC: G09G5/10 ,  G09G3/32

Abstract: The present disclosure provides a display device with a display panel and driver. The driver includes a logo compensator to generate a logo map data with respect to a logo area through which the logo image is displayed and compensates for a brightness of the logo area using the logo map data. The logo compensator includes an extractor, a logo calculator, a logo determination unit, and a brightness compensation block. The extractor extracts logo area data. The logo calculator calculates the logo map data with first data corresponding to a first image recognized as the logo image and second data corresponding to a second image recognized as a logo background image. The logo determination unit sets a boundary area and determining whether a first area corresponding to the first image overlaps the boundary area to output determination data. The brightness compensation block compensates for the brightness of the logo area.