公开(公告)号：US20250006099A1

公开(公告)日：2025-01-02

申请号：US18829244

申请日：2024-09-09

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak PYO ,  Seung Kyu LEE ,  Choon Yul OH ,  Jun Ho HWANG

IPC: G09G3/20 ,  G09G3/32 ,  G09G3/3233

Abstract: A display device includes: a target pixel; observation target pixels located adjacent to the target pixel; and a grayscale corrector for converting an input grayscale value corresponding to the target pixel with reference to observation target grayscale values corresponding to the observation target pixels. The grayscale corrector includes: a light emitting pixel counter for providing a number of light emitting pixels by counting a number of observation target pixels that exceeds a reference value; and a grayscale converter for providing a converted grayscale value by converting the input grayscale value, based on the number of light emitting pixels.

公开(公告)号：US20240046839A1

公开(公告)日：2024-02-08

申请号：US18491499

申请日：2023-10-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak PYO ,  Seung Kyu LEE ,  Choon Yul OH ,  Jun Ho HWANG

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2007 ,  G09G3/2003 ,  G09G3/3233 ,  G09G2320/0686 ,  G09G2320/0673 ,  G09G3/32

Abstract: A display device includes: a target pixel; observation target pixels located adjacent to the target pixel; and a grayscale corrector for converting an input grayscale value corresponding to the target pixel with reference to observation target grayscale values corresponding to the observation target pixels. The grayscale corrector includes: a light emitting pixel counter for providing a number of light emitting pixels by counting a number of observation target pixels that exceeds a reference value; and a grayscale converter for providing a converted grayscale value by converting the input grayscale value, based on the number of light emitting pixels.

公开(公告)号：US20220238058A1

公开(公告)日：2022-07-28

申请号：US17717977

申请日：2022-04-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Beak PYO ,  Seung Kyu LEE ,  Choon Yul OH ,  Jun Ho HWANG

IPC: G09G3/20 ,  G09G3/3233

Abstract: A display device includes: a target pixel; observation target pixels located adjacent to the target pixel; and a grayscale corrector for converting an input grayscale value corresponding to the target pixel with reference to observation target grayscale values corresponding to the observation target pixels. The grayscale corrector includes: a light emitting pixel counter for providing a number of light emitting pixels by counting a number of observation target pixels that exceeds a reference value; and a grayscale converter for providing a converted grayscale value by converting the input grayscale value, based on the number of light emitting pixels.

公开(公告)号：US20210035503A1

公开(公告)日：2021-02-04

申请号：US17074575

申请日：2020-10-19

Applicant: Samsung Display Co., Ltd.

Inventor： Si Beak PYO ,  Choon Yul OH

IPC: G09G3/3258 ,  H01L27/32 ,  G01K3/10

Abstract: An organic light emitting display device includes a display panel, a display panel driver, and a power supply. The display panel includes pixels. Each of the pixels includes an organic light emitting diode configured to emit light in an emission period based on a first power supply voltage and a second power supply voltage. The display panel driver is configured to apply a scan signal, an emission control signal, and a data signal to the pixels. The power supply is configured to: generate the first power supply voltage, the second power supply voltage, and a third power supply voltage applied to the pixels in a non-emission period; and adjust a voltage level of the second power supply voltage and a voltage level of the third power supply voltage based on an ambient temperature and a brightness of the display panel.