Analysis of luminance uniformity and relevant issues with virtual pixel display and countermeasures

Lu-jiang HUANGFU; Zhen-zhen LI; Wen-jing TAN; Shuo HUANG; Hui ZHAO; Shi-ming SHI

doi:10.3788/YJYXS20193406.0556

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Analysis of luminance uniformity and relevant issues with virtual pixel display and countermeasures

Materials and Devices | 更新时间：2020-07-05

- Analysis of luminance uniformity and relevant issues with virtual pixel display and countermeasures
- Chinese Journal of Liquid Crystals and Displays Vol. 34, Issue 6, Pages: 556-563(2019)
- 作者机构：
  
  京东方科技集团股份有限公司技术中心, 北京 100176
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20193406.0556
  CLC： TN873
- Received：02 January 2019，
  
  Accepted：26 March 2019，
  
  Published：05 June 2019
- 稿件说明：
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Lu-jiang HUANGFU, Zhen-zhen LI, Wen-jing TAN, et al. Analysis of luminance uniformity and relevant issues with virtual pixel display and countermeasures[J]. Chinese journal of liquid crystals and displays, 2019, 34(6): 556-563.
DOI：

Lu-jiang HUANGFU, Zhen-zhen LI, Wen-jing TAN, et al. Analysis of luminance uniformity and relevant issues with virtual pixel display and countermeasures[J]. Chinese journal of liquid crystals and displays, 2019, 34(6): 556-563. DOI： 10.3788/YJYXS20193406.0556.

摘要

针对虚拟像素显示均匀性表现的一些问题，本文通过分析典型虚拟像素和真红绿蓝像素亮度中心的形成，对比了虚拟像素显示器与真红绿蓝像素显示器像素亮度中心分布的特点。在典型虚拟像素显示器中，红、蓝子像素数量少于绿子像素。低空间频率分布的红、蓝子像素对均匀分布的绿子像素亮度分布的调制造成虚拟像素亮度中心分布均匀性下降，并影响显示均匀性表现效果。本文提出采用不均匀分布的绿子像素排布，通过红、蓝子像素的亮度调制实现虚拟像素亮度中心均匀分布。初步的傅里叶分析和视觉对比表明，新虚拟像素显示均匀性表现效果符合预期。

Abstract

Aiming at some luminance uniformity issues with virtual pixel displays

the forming of luminance centroid of a typical virtual pixel and real red-green-blue pixel were analyzed. The distribution features of pixel luminance centroids between the virtual pixel display and common real red-green-blue pixel display were compared. In the virtual pixel display

red and blue sub-pixels were less than green sub-pixels. The uneven distribution of pixel luminance centroid in the virtual pixel display

which might cause some perception differences to common real red-green-blue pixel display

was attributed to the brightness modulation of the red and blue sub-pixels distributed at lower spatial frequency on the green sub-pixels of even distribution. In this paper

the countermeasure was proposed to improve pixel luminance centroids uniformity of virtual pixel display by applying uneven distribution of green sub-pixel arrangement along with brightness modulation of proper red and blue sub-pixel arrangement. The effectiveness was preliminarily verified by Fourier series analysis and visual comparison.

关键词

Keywords

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GAO Gong-xian

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College of Electric Information, Nanjing College of Information Technology, Nanjing 210036, China, E-mail:gao_gx @hotmail.

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