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：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：US20210118354A1

公开(公告)日：2021-04-22

申请号：US16893326

申请日：2020-06-04

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

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：US20210103765A1

公开(公告)日：2021-04-08

申请号：US16891981

申请日：2020-06-03

Applicant: Samsung Display Co., Ltd.

Inventor： Byung Ki CHUN ,  Kuk-Hwan AHN ,  Young Wook YOO ,  Jungyu LEE ,  Hyunjun LIM

IPC: G06K9/62 ,  G06F16/535

Abstract: A driving controller includes a logo detector. The logo detector includes a histogram extractor which receives input image data and extracts a first histogram from logo area data of the input image data, a first histogram regenerator electrically connected to the histogram extractor and configured to receive the first histogram from the histogram extractor to generate a second histogram based on the first histogram and a logo map determiner electrically connected to the histogram extractor and the first histogram regenerator, and configure to select one of the first histogram and the second histogram to generate a first logo map. The driving controller is configured to compensate the logo area data of the input image data using the first logo map.