CN115298728A - 一种显示单元采集校正的方法 - Google Patents

一种显示单元采集校正的方法 Download PDF

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Publication number
CN115298728A
CN115298728A CN202080095877.7A CN202080095877A CN115298728A CN 115298728 A CN115298728 A CN 115298728A CN 202080095877 A CN202080095877 A CN 202080095877A CN 115298728 A CN115298728 A CN 115298728A
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China
Prior art keywords
brightness
display unit
corrected
camera
plane
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Pending
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CN202080095877.7A
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English (en)
Inventor
郑喜凤
毛新越
丁铁夫
郭贵新
汪洋
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Changchun Cedar Electronics Technology Co Ltd
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Changchun Cedar Electronics Technology Co Ltd
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Application filed by Changchun Cedar Electronics Technology Co Ltd filed Critical Changchun Cedar Electronics Technology Co Ltd
Publication of CN115298728A publication Critical patent/CN115298728A/zh
Pending legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits

Abstract

一种显示单元采集校正的方法，包括步骤：将相机(1)置于待校正显示单元(3)的前方，使待校正显示单元(3)的中心法线与相机(1)光轴重合；采集待校正显示单元(3)的RGB亮度数据得到原始亮度矩阵；将标准亮度平面(2)置于相机(1)镜头前，保持标准亮度平面(2)中心法线与相机(1)光轴重合；根据采集的标准亮度平面(2)的RGB亮度数据得到相机(1)的最终亮度修正矩阵；将原始亮度矩阵乘以相机(1)的最终亮度修正矩阵，得到恢复了无相机(1)曲面失真的真实亮度矩阵；对真实亮度矩阵进行亮度校正得到校正后的亮度矩阵。用于现场校正或现场维修，在平整度和绝对亮度值上能够达到一致，可以在显示屏上任意互换位置。

Description

PCT国内申请，说明书已公开。

Claims (8)

  1. PCT国内申请，权利要求书已公开。
CN202080095877.7A 2020-04-23 2020-04-23 一种显示单元采集校正的方法 Pending CN115298728A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/086311 WO2021212394A1 (zh) 2020-04-23 2020-04-23 一种显示单元采集校正的方法

Publications (1)

Publication Number Publication Date
CN115298728A true CN115298728A (zh) 2022-11-04

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CN202080095877.7A Pending CN115298728A (zh) 2020-04-23 2020-04-23 一种显示单元采集校正的方法

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US (1) US11837139B2 (zh)
CN (1) CN115298728A (zh)
WO (1) WO2021212394A1 (zh)

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CN116913206A (zh) * 2023-09-05 2023-10-20 长春希达电子技术有限公司 一种led箱体显示屏幕平场校正方法

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CN103426403A (zh) * 2013-08-16 2013-12-04 西安诺瓦电子科技有限公司 Led显示屏的校正用图像采集方法、画面显示方法和校正方法
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CN108335664A (zh) * 2018-01-19 2018-07-27 长春希达电子技术有限公司 采用二维相对移动方式对相机图像曲面进行标定的方法

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JP5468914B2 (ja) * 2010-01-19 2014-04-09 三菱電機株式会社 大型映像表示装置の制御装置
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KR20140070120A (ko) * 2012-11-30 2014-06-10 삼성전자주식회사 디스플레이 장치의 색 보정 장치 및 그 보정 방법
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CN105096815A (zh) * 2014-05-06 2015-11-25 西安诺瓦电子科技有限公司 Led显示屏亮色度校正方法以及led显示屏系统
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116913206A (zh) * 2023-09-05 2023-10-20 长春希达电子技术有限公司 一种led箱体显示屏幕平场校正方法
CN116913206B (zh) * 2023-09-05 2023-12-12 长春希达电子技术有限公司 一种led箱体显示屏幕平场校正方法

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WO2021212394A1 (zh) 2021-10-28
US11837139B2 (en) 2023-12-05

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