Influence of polarization property of backlight unit on TFT-LCD transmission

Qiao-ni WANG; Ya-bin LIN; Xin-yu ZHANG; Jian-ming HUANG; Hong-jiang WU; Bao-qiang WANG

doi:10.37188/YJYXS20203511.1127

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Influence of polarization property of backlight unit on TFT-LCD transmission

Device Physics & Device Preparation | 更新时间：2020-10-30

- Influence of polarization property of backlight unit on TFT-LCD transmission
- Chinese Journal of Liquid Crystals and Displays Vol. 35, Issue 11, Pages: 1127-1133(2020)
- 作者机构：
  
  福州京东方光电科技有限公司, 福建福清 350300
- 作者简介：
- 基金信息：
- DOI：10.37188/YJYXS20203511.1127
  CLC： TN873.93
- Received：21 April 2020，
  
  Revised：23 June 2020，
  
  Accepted：23 June 2020，
  
  Published：05 November 2020
- 稿件说明：
移动端阅览
Qiao-ni WANG, Ya-bin LIN, Xin-yu ZHANG, et al. Influence of polarization property of backlight unit on TFT-LCD transmission[J]. Chinese journal of liquid crystals and displays, 2020, 35(11): 1127-1133.
DOI：

Qiao-ni WANG, Ya-bin LIN, Xin-yu ZHANG, et al. Influence of polarization property of backlight unit on TFT-LCD transmission[J]. Chinese journal of liquid crystals and displays, 2020, 35(11): 1127-1133. DOI： 10.37188/YJYXS20203511.1127.

摘要

在液晶显示产品中，透过率是一个重要的光学特性指标。为了满足视角等光学指标要求，液晶显示产品会设计改变其偏光片透过轴的方向。在屏内部设计不变的条件下，不同偏光片方向对产品的透过率具有显著的影响。偏光片与背光存在匹配性问题。本文通过实验及理论研究，表明对于仅改变偏光片方向的产品而言，背光的偏振特性是影响相对透过率差异的主要因素，棱镜片是引起背光偏振特性的主要因素，背光主偏振方向与棱镜片方向近似垂直。在3°棱镜片背光架构下，相对透过率差异与背光偏振度呈线性关系，线性度达0.99以上。

Abstract

Transmission is an important optical parameter in TFT-LCD products. In order to reach some optical requirements

such as view angle

the transmission axis on polarizer film of TFT-LCD product is changed. However

there are obvious differences in the transmission of the TFT-LCD products which have the same bare cell design but different transmission axis on polarizer films. The polarizer film and the backlight unit should be matched. In this paper

the experimental and theoretical studies show that the polarization property of backlight unit is the primary factor on the obvious differences in the transmission. The polarization property is mostly influenced by the prism film. The main polarization direction is approximately perpendicular to the prism direction. In the condition of 3° prism backlight unit structure

the transmission difference and the degree of polarization of backlight unit are linear relations. The linearity is more than 0.99.

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references

H Y KIM , I S SONG , I. S BAIK , 等 . Color characteristics of the fringe-field switching liquid crystal mode depending on E- and O-modes . Current Applied Physics , 2006 . 7 ( 2 ): 246 - 251 . http://www.sciencedirect.com/science/article/pii/S1567173906000873 http://www.sciencedirect.com/science/article/pii/S1567173906000873 .

张凤翙 . LCD用亮度增强型背光源 . 真空电子技术 , 2001 . ( 1 ): 44 - 49 . http://www.cqvip.com/QK/92225X/20011/5074265.html http://www.cqvip.com/QK/92225X/20011/5074265.html .

F H ZHANG . The luminance enhancement of the backl ight ing units for LCDs . Vacuum Electronics , 2001 . ( 1 ): 44 - 49 . http://www.cqvip.com/QK/92225X/20011/5074265.html http://www.cqvip.com/QK/92225X/20011/5074265.html .

J K LYU , Y Y QU , K LU , 等 . Analysis of backlight structure based on different LCD eigenmode . Society for Information Display International Symposium Digest of Technical Papers , 2014 . 45 ( 1 ): 1298 - 1300 . DOI: 10.1002/j.2168-0159.2014.tb00340.x http://doi.org/10.1002/j.2168-0159.2014.tb00340.x .

MOON J, LEE S, LEE S, et al . The influence of inhomogeneous birefringent medium on the polarization properties of the LCD backlight unit[C]// 2013 Conference on Lasers and Electro-Optics Pacific Rim . Kyoto: IEEE, 2013.

邵喜斌 , 内田龙男 . LCD参数测试系统中的偏光响应 . 液晶与显示 , 2002 . 17 ( 2 ): 77 - 83 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yjyxs200202001 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yjyxs200202001 .

X B SHAO , T UCHIDA . Eliminating the polarization response in a system for measuring LCD parameters . Chinese Journal of Liquid Crystals and Displays , 2002 . 17 ( 2 ): 77 - 83 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yjyxs200202001 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yjyxs200202001 .

郁道银 , 谈恒英 . 工程光学 , 3版 : 北京机械工业出版社 , 2011 .

D Y YU , H Y TAN . Engineering Optics , 3rd ed : Beijing China Machine Press , 2011 .

张益民 , 吴庆富 . TFT-LCD背光模组光学膜关键件的开发研究 . 现代显示 , 2010 . ( 4 ): 49 - 54 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=xdxs201004012 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=xdxs201004012 .

Y M Zhang , Q F WU . Development & mass production of key components of BLU for LCD . Advanced Display , 2010 . ( 4 ): 49 - 54 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=xdxs201004012 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=xdxs201004012 .

柏祥 . 一种改善亮度均匀性的背光设计方案 . 电子产品世界 , 2019 . 26 ( 4 ): 84 - 87 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dzcpsj201904024 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dzcpsj201904024 .

X BAI . A backlight design scheme for improving brightness uniformity . Electronic Engineering & Product World , 2019 . 26 ( 4 ): 84 - 87 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dzcpsj201904024 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dzcpsj201904024 .

吴美瑞 . 集光型增亮膜微结构专利技术综述 . 中国科技信息 , 2018 . ( 15 ): 21 - 23 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgkjxx201815010 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgkjxx201815010 .

M R WU . Review of patent technologies for microstructure of light collecting brightening films . China Science and Technology Information , 2018 . ( 15 ): 21 - 23 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgkjxx201815010 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgkjxx201815010 .

马群刚 . TFT-LCD原理与设计 , : 北京电子工业出版社 , 2011 . 1 .

Q G MA . Principle and design of TFT-LCD , : Beijing Publishing House of Electronics Industry , 2011 . 1 .

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