Study and comparison of positive and negative LC in FFS applications

ZHANG Shao-nan; GUO Xiao-jun; CUI Hong-qing

doi:10.3788/YJYXS20142903.0322

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Study and comparison of positive and negative LC in FFS applications

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- Study and comparison of positive and negative LC in FFS applications
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 3, Pages: 322-327(2014)
- 作者机构：
  
  1. 上海交通大学电子信息与电气工程学院, 上海 200030
  2. 昆山市龙腾光电有限公司, 江苏昆山,215301
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142903.0322
  CLC： TN27
- Received：12 October 2013，
  
  Revised：15 November 2013，
  
  Published：25 April 2014
- 稿件说明：
移动端阅览
张少楠, 郭小军, 崔宏青. 正负液晶在FFS中的比较和研究[J]. 液晶与显示, 2014,29(3): 322-327

ZHANG Shao-nan, GUO Xiao-jun, CUI Hong-qing. Study and comparison of positive and negative LC in FFS applications[J]. , 2014,29(3): 322-327
张少楠, 郭小军, 崔宏青. 正负液晶在FFS中的比较和研究[J]. 液晶与显示, 2014,29(3): 322-327 DOI： 10.3788/YJYXS20142903.0322.

ZHANG Shao-nan, GUO Xiao-jun, CUI Hong-qing. Study and comparison of positive and negative LC in FFS applications[J]. , 2014,29(3): 322-327 DOI： 10.3788/YJYXS20142903.0322.

摘要

现在对于广视角技术，特别是IPS和FFS的显示模式，由于正性液晶和配套材料技术的成熟性和材料本身的稳定性能，使用正性液晶占绝大多数。但随着对显示器光学性能要求的提高，使用负性液晶的研究逐渐增多，这是由于负性相对正性液晶有较高的穿透率以及较好的画面画质，并能改善颜色偏差。但负性液晶同样也存在诸多缺陷，如需要有较高的驱动电压，存在功耗的问题。另外，实验证明负性液晶使得显示器的残留影像较为严重，材料的稳定性以及其他材料与之搭配性都有待提高。本文通过使用Techwiz软件的模拟和实际样品的测量数据，全面比较了正负液晶在FFS中的光学特性和画质表现，阐述了2种液晶的优缺点，提出了需要改进的建议。

Abstract

For the uptodate wide viewing angle technology

especially the IPS and FFS display mode

the usage of Pos liquid crystal is in the majority

because of the maturity of Pos liquid crystal craft and the ancillary material technology. Nevertheless

in accordance with the requirement of the LCD pro-ducts's optical capability enhancement

the study of the usage of Neg liquid crystal has been increa-sing

which is because of the relatively high transmittance

color shift improvement and display quality.In addition

Neg liquid crystal has many disadvantages

for example

relatively higher driving voltage and power consumption. Furthermore

the experiments have proven that the usage of Neg liquid crystal has serious image sticking problem. In consequence

Neg liquid crystal's stability and collocability with other materials remains have been improved. This paper compares the optical character and the display quality in FFS of Pos/Neg liquid crystal comprehensively by means of the Techwiz software simulation and samples' measurement data

elaborates the advantage and disadvantage of two kinds of liquid crystal and puts forward the suggestions where needs improvements.

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references

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