改善大视角下LCD灰阶图像质量的研究进展

郭玉强; 孙玉宝

doi:10.37188/YJYXS20203507.0710

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改善大视角下LCD灰阶图像质量的研究进展

先进显示研究 | 更新时间：2020-07-13

- 改善大视角下LCD灰阶图像质量的研究进展
- Progress in improving the gray scale image quality of LCD under large viewing angle
- 液晶与显示 2020年35卷第7期页码：710-724
- 作者机构：
  
  河北工业大学应用物理系, 天津 300401
- 作者简介：
  
  [ "郭玉强(1992-), 男, 河北承德人, 博士, 2020年于河北工业大学获得博士学位, 主要从事液晶与液晶器件等方面的研究。E-mail: guoyuqiang361@163.com" ]
  [ "孙玉宝(1975-), 男, 河北沧州人, 博士, 教授, 2010年于河北工业大学获得博士学位, 主要从事液晶与液晶器件等方面的研究。E-mail:sun_yubao@163.com" ]
- 基金信息：
  
  国家重点研发计划(2018YFB0703701);国家自然科学基金(61475042)
- DOI：10.37188/YJYXS20203507.0710
  中图分类号： TN141.9
- 收稿日期：2020-04-11，
  
  修回日期：2020-04-19，
  
  录用日期：2020-4-19，
  
  纸质出版日期：2020-07-05
- 稿件说明：
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郭玉强, 孙玉宝. 改善大视角下LCD灰阶图像质量的研究进展[J]. 液晶与显示, 2020,35(7):710-724.

Yu-qiang GUO, Yu-bao SUN. Progress in improving the gray scale image quality of LCD under large viewing angle[J]. Chinese journal of liquid crystals and displays, 2020, 35(7): 710-724.
郭玉强, 孙玉宝. 改善大视角下LCD灰阶图像质量的研究进展[J]. 液晶与显示, 2020,35(7):710-724. DOI： 10.37188/YJYXS20203507.0710.

Yu-qiang GUO, Yu-bao SUN. Progress in improving the gray scale image quality of LCD under large viewing angle[J]. Chinese journal of liquid crystals and displays, 2020, 35(7): 710-724. DOI： 10.37188/YJYXS20203507.0710.

摘要

近年来，家用电视和办公显示器的尺寸呈现越来越大的发展态势，液晶显示器(LCD)在大尺寸显示领域内占有很大的比重。LCD的核心是控制背光透过率的液晶面板，由于液晶材料是双折射率材料，所以LCD的灰阶图像质量会存在视角依赖性。为了解决现阶段大尺寸LCD的发展需求，也为了使读者较快地了解相关研究进展，本文总结了改善大视角下灰阶图像质量的部分研究，并对相关方法进行了归纳和评述。文中简述了部分可以提高LCD对比度的方法。详细介绍了能够降低LCD伽马偏移的方法，并将这些方法进行了归类。最后介绍了一些与视角相关的其他性能。本文列举并归纳了多种方法，对未来改善LCD的灰阶图像质量具有指导意义。

Abstract

In recent years

the size of television and office displays shows an increasing trend

and liquid crystal display (LCD) occupies a large proportion in the large-area display field. The core of LCD is liquid crystal panel that controls the transmittance of backlight

and liquid crystal is a birefringence material

so the gray scale image quality of LCD depends on the viewing angle. In order to meet the development needs of large-area LCD at the present stage and to make readers quickly acquire the relevant research progress

some researches on improving the gray scale image quality under large viewing angle are summarized

classified and reviewed. Firstly

some methods to improve the contrast of LCD are introduced. Then

the methods to reduce the LCD gamma shift are introduced in detail and classified. Finally

some additional properties related to the viewing angle are pointed out. In this paper a variety of methods are enumerated and summarized

which have a guiding significance for improving the gray scale image quality of a specific LCD in the future.

关键词

Keywords

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H J KIM , Y J LIM , G MURALI , 等 . Reduction of gamma distortion in oblique viewing directions in polymer-stabilized vertical alignment liquid crystal mode . Current Optics and Photonics , 2017 . 1 ( 2 ): 157 - 162 . DOI: 10.3807/COPP.2017.1.2.157 http://doi.org/10.3807/COPP.2017.1.2.157 .

H KIM , K C SHIN , J S KIM , 等 . New three-gamma-curves-integrated VA LCD design for excellent image quality and enhanced transmittance . Journal of Information Display , 2016 . 17 ( 3 ): 109 - 115 . DOI: 10.1080/15980316.2016.1194335 http://doi.org/10.1080/15980316.2016.1194335 .

G J LIN , R J XIANG , I A YAO , 等 . Evaluating and improving color washout of vertical aligned liquid crystal display . Displays , 2014 . 35 ( 3 ): 159 - 164 . DOI: 10.1016/j.displa.2014.05.006 http://doi.org/10.1016/j.displa.2014.05.006 .

S S KIM . The world's largest (82-in.) TFT-LCD . SID Symposium Digest of Technical Papers , 2005 . 36 ( 1 ): 1842 - 1847 . DOI: 10.1889/1.2036378 http://doi.org/10.1889/1.2036378 .

C L LIN , J C HSIANG , Y H WU , 等 . A single cell gap transflective LCD with dual common electrodes and coupling capacitance . SID Symposium Digest of Technical Papers , 2010 . 41 ( 1 ): 499 - 502 . DOI: 10.1889/1.3500505 http://doi.org/10.1889/1.3500505 .

Y GUO , W LI , X LI , 等 . Reduced off-axis gamma shift of liquid crystal display by intercepting transmittance method . Journal of PhysicsD: Applied Physics , 2020 . 53 ( 34 ): 345104 DOI: 10.1088/1361-6463/ab85e4 http://doi.org/10.1088/1361-6463/ab85e4 .

K C TIEN , J Y CHUNG , C H LIAO , 等 . Improved picture quality on analog dual-data type multi-domain polymer sustained alignment LCD technology . SID Symposium Digest of Technical Papers , 2014 . 45 ( 1 ): 1469 - 1472 . DOI: 10.1002/j.2168-0159.2014.tb00389.x http://doi.org/10.1002/j.2168-0159.2014.tb00389.x .

宋聪 , 林丽锋 , 宋文亮 , 等 . ADS类面板色偏关键影响因素 . 液晶与显示 , 2019 . 34 ( 4 ): 361 - 365 . http://d.old.wanfangdata.com.cn/Periodical/yjyxs201904006 http://d.old.wanfangdata.com.cn/Periodical/yjyxs201904006 .

C SONG , L F LIN , W L SONG , 等 . Key influence factors on the ADS panel color shift . Chinese Journal of Liquid Crystals and Displays , 2019 . 34 ( 4 ): 361 - 365 . http://d.old.wanfangdata.com.cn/Periodical/yjyxs201904006 http://d.old.wanfangdata.com.cn/Periodical/yjyxs201904006 .

R B LU , Q HONG , Z B GE , 等 . Color shift reduction of a multi-domain IPS-LCD using RGB-LED backlight . Optics Express , 2006 . 14 ( 13 ): 6243 - 6252 . DOI: 10.1364/OE.14.006243 http://doi.org/10.1364/OE.14.006243 .

M Z JIAO , Z B GE , S T WU . Broadband wide-view LCDs with small color shift . Journal of Display Technology , 2009 . 5 ( 8 ): 331 - 334 . DOI: 10.1109/JDT.2009.2025608 http://doi.org/10.1109/JDT.2009.2025608 .

H W CHEN , R D ZHU , J HE , 等 . Going beyond the limit of an LCD's color gamut . Light: Science & Applications , 2017 . 6 ( 9 ): e17043 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gkxyyy-e201703028 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gkxyyy-e201703028 .

H J KIM , M H SHIN , J Y LEE , 等 . Realization of 95% of the Rec. 2020 color gamut in a highly efficient LCD using a patterned quantum dot film . Optics Express , 2017 . 25 ( 10 ): 10724 - 10734 . DOI: 10.1364/OE.25.010724 http://doi.org/10.1364/OE.25.010724 .

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