240Hz无滤色片液晶显示中色彩分裂现象的抑制

王萍; 张宇宁; 郦光选; 耿迪

doi:10.3788/YJYXS20193408.0772

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240Hz无滤色片液晶显示中色彩分裂现象的抑制

材料与器件 | 更新时间：2020-12-14

- 240Hz无滤色片液晶显示中色彩分裂现象的抑制
- 240 Hz color filterless LCD with suppressed color breakup
- 液晶与显示 2019年34卷第8期页码：772-777
- 作者机构：
  
  东南大学电子科学与工程学院教育部信息显示与可视化国际合作联合实验室, 江苏南京 210096
- 作者简介：
  
  [ "王萍(1994-), 女, 硕士研究生, 2017年于上海大学获得学士学位。主要从事时序显示及人眼视觉感知方面的研究。E-mail:wangping_977@163.com" ]
  [ "张宇宁(1981-), 男, 博士, 硕士生导师, 副教授, 2008年于东南大学获得博士学位, 主要从事基于新型显示和照明技术的光环境构建与感知研究。E-mail:zyn@seu.edu.cn" ]
- 基金信息：
  
  南京市产学研合作后补助项目(201722003);Subsidy Project after Industry-University-Research Cooperation in Nanjing(201722003)
- DOI：10.3788/YJYXS20193408.0772
  中图分类号： TN27
- 收稿日期：2019-04-12，
  
  录用日期：2019-5-30，
  
  纸质出版日期：2019-08-05
- 稿件说明：
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王萍, 张宇宁, 郦光选, 等. 240Hz无滤色片液晶显示中色彩分裂现象的抑制[J]. 液晶与显示, 2019,34(8):772-777.

Ping WANG, Yu-ning ZHANG, Guang-xuan LI, et al. 240 Hz color filterless LCD with suppressed color breakup[J]. Chinese journal of liquid crystals and displays, 2019, 34(8): 772-777.
王萍, 张宇宁, 郦光选, 等. 240Hz无滤色片液晶显示中色彩分裂现象的抑制[J]. 液晶与显示, 2019,34(8):772-777. DOI： 10.3788/YJYXS20193408.0772.

Ping WANG, Yu-ning ZHANG, Guang-xuan LI, et al. 240 Hz color filterless LCD with suppressed color breakup[J]. Chinese journal of liquid crystals and displays, 2019, 34(8): 772-777. DOI： 10.3788/YJYXS20193408.0772.

摘要

时序彩色显示相比于传统空间子像素显示而言，具有高分辨率低功耗等优点，但其深受色彩分裂现象的困扰，解决此问题对时序显示的发展显得至关重要。本文基于240 Hz液晶显示屏，提出一种四场局域基色去饱和算法。该算法选取重心点为第4场背光基色，将亮度信息和图像强度更多分配在第4子场。通过程序仿真四场和三场局域基色去饱和算法的显示效果，设计了主观评分的感知实验来对比两种算法对时序显示图像色彩分裂现象的抑制效果。不同算法和不同分区数都对评分产生了显著影响，评分随着背光分区数增加而降低，两种算法都对色彩分裂现象的抑制效果有显著影响，且四场算法的抑制效果优于三场算法。结果表明，四场和三场局域基色去饱和算法都可以通过增加背光分区数来抑制图像的色彩分裂现象。四场局域基色去饱和算法对时序显示色彩分裂的抑制效果优于原有的三场局域基色去饱和算法。

Abstract

The field-sequential-color display has the advantages of high resolution and low power consumption compared to the traditional spatial sub-pixel display but it is deeply troubled by color breakup. Solving this problem is crucial for the development of the field-sequential-color display. Based on the 240 Hz liquid crystal display

4-field local-primary-desaturation algorithm is proposed in this paper. The center of gravity is selected as the fourth backlight color

and distributes the luminance information and image intensity more in the fourth subfield. The simulation results of the 4-field and 3-field local-primary-desaturation algorithm are simulated by the program. Perception experiments are designed to evaluate the suppression effect of two algorithms on the color breakup of target images. Different algorithms and different partition numbers have significant influence on the score. The score decreases with the increase of the number of backlight partitions. Both algorithms have a significant effect on the suppression of color breakup

and the suppression effect of 4-field local-primary-desaturation algorithm is better than 3-field. The results show that 4-field and 3-field local-primary-desaturation algorithm can effectively suppress the color breakup of images by increasing the number of backlight partitions. Compared with the 3-field local-primary-desaturation algorithm

4-field local-primary-desaturation algorithm can suppress the color breakup more effectively.

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references

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