Improvement and analysis of display nonuniformity of LCD under low gray level

Hui-zhong ZHU; Wang MAO; Xiao-jiao CHEN; Jun-guo LIU; Sheng-lin SUN

doi:10.3788/YJYXS20173207.0538

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Improvement and analysis of display nonuniformity of LCD under low gray level

Material Science | 更新时间：2020-08-12

- Improvement and analysis of display nonuniformity of LCD under low gray level
- Chinese Journal of Liquid Crystals and Displays Vol. 32, Issue 7, Pages: 538-542(2017)
- 作者机构：
  
  北京京东方专用显示科技有限公司, 北京 100176
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20173207.0538
  CLC： TN141
- Received：08 November 2016，
  
  Accepted：26 February 2017，
  
  Published：05 July 2017
- 稿件说明：
移动端阅览
Hui-zhong ZHU, Wang MAO, Xiao-jiao CHEN, et al. Improvement and analysis of display nonuniformity of LCD under low gray level[J]. Chinese journal of liquid crystals and displays, 2017, 32(7): 538-542.
DOI：

Hui-zhong ZHU, Wang MAO, Xiao-jiao CHEN, et al. Improvement and analysis of display nonuniformity of LCD under low gray level[J]. Chinese journal of liquid crystals and displays, 2017, 32(7): 538-542. DOI： 10.3788/YJYXS20173207.0538.

摘要

针对目前液晶显示屏在低灰阶下显示不均匀的问题，对基于图像处理的亮度矫正方法在液晶显示屏中的改善进行了实验。基于高精度超暗亮度CCD采集器，采集液晶显示屏在低灰阶下单个像素的亮度信息及Gamma曲线数据，并逐个像素进行矫正。重点介绍了该采集系统与其他采集设备的优势及亮度和云纹矫正算法，试验结果表明：该采集系统可以一次完成所有像素的亮度信息的采集，并能有效分辨各像素点的亮度，理论上均匀度可以提高到100%，在正常显示状态下，可以独立实时地对每一帧画面进行矫正，确保显示信息的真实性。

Abstract

Regarding the problem of display nonuniformity under low gray level

experiments were designed to improve the display defect based on the luminance correction method of image processing. Based on high definition and super dark brightness CCD collector

the luminance information and Gamma curve data of each pixel of the liquid crystal display under low gray level were acquired

thus correcting the pixels one by one. The paper emphasizes on the introduction of the advantages of this acquisition system compared with others as well as the algorithm of brightness and cloud pattern correction. The experiment result indicates that the acquisition system can collect the brightness information of all pixels at a time

and can distinguish the luminance variety of each pixel effectively. The uniformity can be increased up to 100% theoretically. Under normal display condition

it can correct each frame of the picture independently in real time

ensuring the authenticity of the display information.

关键词

Keywords

references

KAGAN C R, ANDRY P. 薄膜晶体管(TFT)及其在平板显示器中的应用[M]. 廖燕平, 王军, 译. 北京: 电子工业出版社, 2008: 132-138.

KAGAN C R, ANDRY P. TFT and its Application in FP . [M]. LIAO Y P, WANG J, Trans. Beijing: Electronic Industry Press, 2008: 132-138. (in Chinese)

马群刚.TFT-LCD原理与设计[M].北京:电子工业出版社, 2011:124-127.

MA Q G. Theory and Design of TFT-LCD .[M]. Beijing: Electronic Industry Press, 2011: 124-127. (in Chinese)

黄锡珉.液晶显示技术发展轨迹[J].液晶与显示, 2003, 18(1):1-6.

HUANG X M. Road-map of LCD technology [J]. Chinese Journal of Liquid Crystals and Display ., 2003, 18(1): 1-6. (in Chinese)

PAULUTH D, TARUMI K. Optimization of liquid crystals for television [J]. Journal of the Society for Information Display , .2005, 13(8): 693-702.

王新久.液晶光学与液晶显示[M].北京:科学出版社, 2006:239-245.

WANG X J. Liquid crystal Optics & Liquid crystal Display .[M]. Beijing: Science Press, 2006: 239-245. (in Chinese)

夏子褀. TFT-LCD制造工艺中White Mura的消除[D]. 天津: 天津大学, 2010.

XIA Z Q. White Mura elimination in TFT-LCD manufacture process[D]. Tianjin: Tianjin University, 2010. (in Chinese)

闫方亮, 沈世妃, 候智, 等.a-Si厚度对TFT开关特性的影响[J].现代显示, 2011(7):23-28.

YAN F L, SHEN S F, HOU Z, et al . Effect of a-Silicon thickness on TFT characteristic [J]. Advanced Displa ., 2011(7): 23-28. (in Chinese)

JANG K H, HWANG S J, JOO Y C. Effect of capping layer on hillock formation in thin Al films [J]. Metals and Materials International , .2008, 14(2): 147-150.

PAULUTH D, TARUMI K. Optimization of liquid crystals for television [J]. Journal of the Society for Information Displa ., 2005, 13(8): 693-702.

戴亚翔.TFT LCD面板的驱动与设计[M].北京:清华大学出版社, 2008.

DAI Y X. Design and Operation of TFT LCD Panel . [M]. Beijing: Tsinghua University Press, 2008. (in Chinese)

FAN F, DU T, SRIVASTAVA A K, et al . Axially symmetric polarization converter made of patterned liquid crystal quarter wave plate [J]. Optics Expres ., 2012, 20(21): 23036-23043.

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