Brightness Correction Method of LED Display Based on Photographing

RUAN Hai-rong; XIA Gui-yong

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Brightness Correction Method of LED Display Based on Photographing

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- Brightness Correction Method of LED Display Based on Photographing
- Chinese Journal of Liquid Crystals and Displays Vol. 27, Issue 2, Pages: 193-197(2012)
- 作者机构：
  
  1. 襄樊学院物理与电子工程学院,湖北襄阳,441053
  2. 襄樊新瑞光电子有限公司,湖北襄阳,441002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391
- Received：10 May 2011，
  
  Revised：06 January 2012，
  
  Published Online：15 April 2012，
  
  Published：15 April 2012
- 稿件说明：
移动端阅览
阮海蓉, 夏贵勇. 基于照相的LED显示屏亮度校正方法[J]. 液晶与显示, 2012,(2): 193-197

RUAN Hai-rong, XIA Gui-yong. Brightness Correction Method of LED Display Based on Photographing[J]. , 2012,(2): 193-197
阮海蓉, 夏贵勇. 基于照相的LED显示屏亮度校正方法[J]. 液晶与显示, 2012,(2): 193-197 DOI：

RUAN Hai-rong, XIA Gui-yong. Brightness Correction Method of LED Display Based on Photographing[J]. , 2012,(2): 193-197 DOI：

摘要

像素亮度的一致性是LED显示屏的重要指标。对于像素亮度一致性不理想的LED显示屏

对其照相获得包含亮度信息的图像文件

再经计算机进行背景去噪、像素定位、亮度信息提取

得到亮度数据文件

最后通过计算及数据库处理

生成Excel亮度校正文件。Excel格式的亮度校正文件

可以方便地送到主流LED显示屏控制器中进行逐点校正

有效地改善LED显示屏的视觉效果。

Abstract

Consistency of pixel brightness is an important index for LED display. For LED display with un-ideal consistency of pixel brightness

to get pictures file including brightness information by taking photograph

via computer

background can be de-noised

pixel can be positioned

and even information about brightness can be obtained

thus getting file about brightness data

and finally

handled by computer and database

the Excel brightness corrected file will be made. The brightness file corrected in Excel format can be convenient to deliver to the controller of LED display where it will be corrected point by point. In this way

the visual effect of LED display could be greatly improved.

关键词

Keywords

references

李熹霖.LED显示屏的色度均匀性和色保真度 [J]. 现代显示, 2006,(6):9-15.[2] 郝宗潮,胡玉. LED显示屏驱动芯片的种类及应用 [J]. 现代显示, 2003,(6):48-51.[3] 李兰友,庄国喻,秦卫光. Visual Basic绘图与图像处理 [M].北京:人民邮电出版社,1999:227-228.[4] 郑喜凤,宋新丽,刘贵华,等.一种基于区域最大值的LED显示屏亮度特征数据提取方法 [J]. 液晶与显示, 2008,23(4):453-457.[5] 杨赓. LED显示屏灰度等级的提高及非线性纠正 [J]. 液晶与显示, 2001,16(2):150-156.

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Related Author

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MING Weiwei

HUANG Xiaojin

LI Xiang-guo

YAO Xiao-kui

ZHAO Guang-he

XIANG Jian-yong

Related Institution

School of Mechanical Engineering， Shanghai Jiao Tong University

Institute of Machinery Manufacturing Technology， China Academy of Engineering Physics

College of Information Science and Engineering, Henan University of Technology

School of Technical Physics, Xidian University

College of Electric Information, Nanjing College of Information Technology, Nanjing 210036, China, E-mail:gao_gx @hotmail.

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