公开(公告)号：US12293692B2

公开(公告)日：2025-05-06

申请号：US18406102

申请日：2024-01-06

Applicant: Samsung Display Co., LTD.

Inventor： Junho Hwang ,  Yoongyu Lee ,  Sunjoon Hwang

IPC: G09G3/20 ,  G09G3/3225

Abstract: A gamma correction apparatus for a display device, includes: a measurer configured to measure an optical characteristic of a display panel; and a gamma data generator configured to generate measurement gamma data for at least one measurement gray level pre-determined from among a plurality of gray levels, based on the optical characteristic received from the measurer, generate prediction gamma data for at least one prediction gray level other than the at least one measurement gray level from among the plurality of gray levels by using an equation defining a relationship between a gray level and an optical characteristic, and generate gray level-wise gamma data, based on the measurement gamma data and the prediction gamma data.

公开(公告)号：US20240071277A1

公开(公告)日：2024-02-29

申请号：US18455240

申请日：2023-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Sibeak Pyo ,  Sungjin Kim ,  Hyosang Yang ,  Eunjung Oh ,  Seungkyu Lee ,  Yoongyu Lee ,  Hyelim Lee ,  Younwoo Choe ,  Hyunseok Hong ,  Younguk Hwang

IPC: G09G3/20

CPC classification number: G09G3/2003 ,  G09G2320/0276 ,  G09G2320/0673

Abstract: In a gamma voltage correction method for a display device including a first display area and a second display area, the gamma voltage correction method includes: correcting a gamma voltage for each sub-pixel of the first display area based on measured light characteristics of a first area of the first display area in a plurality of gray levels; and correcting a gamma voltage for each sub-pixel of the second display area based on measured light characteristics of a second area of the first display area around the second display area and measured light characteristics of the second display area in the plurality of gray levels.

公开(公告)号：US10942612B2

公开(公告)日：2021-03-09

申请号：US15597980

申请日：2017-05-17

Applicant: Samsung Display Co., Ltd.

Inventor： Jeongyoung Kim ,  Donghwan Kim ,  Yoongyu Lee ,  Seongmo Hwang

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch panel includes: a substrate; a plurality of sensor electrodes disposed on the substrate; and a dummy pattern disposed on the substrate among the plurality of sensor electrodes. Each of the sensor electrode includes a plurality of first mesh patterns extending in a first direction and a plurality of second mesh patterns connecting adjacent ones of the plurality of first mesh patterns in a second direction, and the dummy pattern includes a plurality of third mesh patterns extending in the first direction and one or more disconnected portions on an extension path of the plurality of third mesh patterns.

公开(公告)号：US10810934B2

公开(公告)日：2020-10-20

申请号：US16285929

申请日：2019-02-26

Applicant: SAMSUNG DISPLAY CO, LTD.

Inventor： Si-Beak Pyo ,  Yoongyu Lee

IPC: G06T7/90 ,  G09G3/3225

Abstract: A display device includes a display panel including pixels each including a light emitting element and a bypass transistor connected to the light emitting element to receive an initialization voltage, a first offset voltage determining unit determining a first offset voltage using a brightness period of image data and a temperature of the display panel, a black image detecting unit detecting black data among the image data to determine a dense area of the pixels to which the black data are applied, and determining whether to proceed with a subsequent operation, an image analyzing unit analyzing the image data depending on the determination of whether to proceed with the subsequent operation, and outputting an analyzed result, and a second offset voltage determining unit determining a second offset voltage using the analyzed result. The initialization voltage is determined using the first offset voltage and the second offset voltage.