Influence of fitting curve between grayscale and brightness on Mura improvement of LCD panel

TU Zhen-tao; FAN Rui; ZHANG Xiao-ning; LIANG Zhi-hu; HWANG Tai-jiun; LIANG Peng-fei; WANG

doi:10.3788/YJYXS20163105.0442

您当前的位置：

首页 >

文章列表页 >

Influence of fitting curve between grayscale and brightness on Mura improvement of LCD panel

Driving and Controlling | 更新时间：2020-08-12

- Influence of fitting curve between grayscale and brightness on Mura improvement of LCD panel
- Chinese Journal of Liquid Crystals and Displays Vol. 31, Issue 5, Pages: 442-448(2016)
- 作者机构：
  
  1. 深圳市华星光电技术有限公司,广东深圳,518132
  2. 西安交通大学电子与信息工程学院电子物理与器件教育部重点实验室,陕西西安,710049
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(No.61372018)
- DOI：10.3788/YJYXS20163105.0442
  CLC： TN27;TN702
- Received：14 January 2016，
  
  Revised：31 January 2016，
  
  Published：05 May 2016
- 稿件说明：
移动端阅览
屠震涛, 樊瑞, 张小宁等. 灰度与亮度拟合对LCD面板Mura改善的影响[J]. 液晶与显示, 2016,31(5): 442-448

TU Zhen-tao, FAN Rui, ZHANG Xiao-ning etc. Influence of fitting curve between grayscale and brightness on Mura improvement of LCD panel[J]. , 2016,31(5): 442-448
屠震涛, 樊瑞, 张小宁等. 灰度与亮度拟合对LCD面板Mura改善的影响[J]. 液晶与显示, 2016,31(5): 442-448 DOI： 10.3788/YJYXS20163105.0442.

TU Zhen-tao, FAN Rui, ZHANG Xiao-ning etc. Influence of fitting curve between grayscale and brightness on Mura improvement of LCD panel[J]. , 2016,31(5): 442-448 DOI： 10.3788/YJYXS20163105.0442.

摘要

选择有限的采样灰度级准确拟合出整个灰度区间的亮度和灰度关系

是影响LCD面板Mura改善效果、实时性和成本的关键因素。通过迭代方法优化采样灰度级

并采用分段伽马拟合方法研究了采样灰度级对Mura改善的影响。针对1 9201 080的55 inTFT-LCD模组

6个采样灰度级的优化使拟合亮度曲线与实际亮度曲线的相对误差之和在0~255灰度级从5.64降到3.68

4个采样灰度级的优化使相对误差之和从29.27降到8.98。通过对6个和4个优化采样灰度级的实验结果比较和分析

结果表明

4个优化采样灰度级可以在Mura改善效果、实时性及成本三者之间达到较好的平衡。

Abstract

It is a key issue to select limited sampled grayscales to fit the curve accurately between the luminance and whole grayscales that affect the Mura improvement

real time

and cost of LCD panels. The limited sampled grayscales were optimized by the iterative method

and the influence of the optimized grayscales on the Mura improvement was investigated by the segmented gamma fitted method. To a 55 in TFT-LCD module with resolution of 1 9201 080

the relative error in 0~255 grayscale between fitting and actual brightness curve decreases from 5.64 to 3.68 with optimization of six sampled grayscales and from 29.27 to 8.98 with optimization of four sampled grayscales. The experimental results of six and four optimized sampled grayscales on the mura improvement indicates that the mura improvement effect

real-time

and cost of LCD panels by using four optimized sampled grayscales are better.

关键词

Keywords

references

PARK N K, YOO S I. Evaluation of TFT-LCD defects based on human visual perception[J]. Displays, 2009, 30(1):1-16.

毕昕,丁汉. TFT-LCD Mura缺陷机器视觉检测方法[J]. 机械工程学报, 2010,46(12):13-19. BI X, DING H.Machine vision inspection method of Mura defect for TFT-LCD[J]. Journal of Mechanical Engineering, 2010, 46(12):13-19. (in Chinese)

李坤,李辉,刘云杰,等. LCD Mura缺陷的B样条曲面拟合背景抑制[J]. 光电工程, 2014,41(2):33-39. LI K, LI H, LIU Y J,et al. Background suppression of LCD mura defect using B-spline surface fitting[J]. Opto-Electronic Engineering, 2014, 41(2):33-39. (in Chinese)

王新新,徐江伟,邹伟金,等. TFT-LCD缺陷检测系统的研究[J]. 电子测量与仪器学报, 2014,28(3):278-284. WANG X X, XU J W, ZOU W J, et al. Research on detection system for TFT-LCD defects[J]. Journal of Electronic Measurement and Instrumentation, 2014, 28(3):278-284. (in Chinese)

LEE Y H, TANG K H. How human perceptions of Mura affect LCD market values[J]. Displays, 2012, 33(1):46-53.

张昱,张健. 模糊专家系统在TFT-LCD缺陷检测中的应用[J]. 光电子激光, 2006,17(6):719-723. ZHANG Y, ZHANG J.Application of fuzzy expert system in defect inspection of TFT-LCD[J]. Journal of OptoelectronicsLaser, 2006, 17(6):719-723. (in Chinese)

京东方科技集团股份有限公司. TFT-LCD像素电极层结构、制备方法及其掩膜版:中国,201110095453[P].2011-08-31. BOE Technology Group Limited by Share Ltd. TFT-LCD pixel electrode layer structure, preparation method and mask:CN, 201110095453[P]. 2011-08-31. (in Chinese)

LEE H, WHANG K W. A quantitative measurement of LCD and PDP TVs for human visual preference and fatigue[J]. Displays, 2012, 33(1):1-6.

程石,王涛,张敏,等. TFT-LCD中隔垫物密度与Push Mura和低温气泡的关系[J]. 液晶与显示, 2011,26(5):604-607. CHENG S, WANG T, ZHANG M,et al. Relationship of spacer density with Push Mura and cold bubble in TFT-LCD[J]. Chinese Journal of Liquid Crystals and Displays, 2011, 26(5):604-607. (in Chinese)

CHEN H C, FANG L T, LEE L, et al. LOG-filter-based inspection of cluster Mura and vertical-band Mura on liquid crystal displays[C]. Proceedings of the SPIE, Machine Vision Applications in Industrial Inspection XⅢ, 257, San Jose, CA:SPIE, 2005, 5679:257-265.

CHEN S L, CHANG J H. TFT-LCD Mura defects automatic inspection system using linear regression diagnostic model[J].Proceedings of the Institution of Mechanical Engineers, Part B:Journal of Engineering Manufacture, 2008, 222(11):1489-1501.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Analysis and improvement of TFT-LCD horizontal stripes defect

FPGA based white field apparatus for LCD calibration

Graphics Generation Algorithm Application in Instrumental LCD Drawing Based on Bresenham

Related Author

Chao WANG

Zhi-Xiao YAO

ZHAO Lei

WANG Xue-liang

GONG Yan

LI Yin-hua

HAN Jun-ye

Related Institution

Beijing BOE Display Technology Co., Ltd.

State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

College of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China,E-mail:zzfcc@.

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China 130033 Postal code：130033
Tel：0431-86176059 Email：yjxs@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰