Analysis and improvement research of black uniformity for tablet personal computer production

Yong-yong JIANG; Jian WU; Dong GUO; Wei-jing LIAO; Jian CHEN; Fu-kun SUN; Zhi-hua ZHANG; Guo-you GUI; Rui-zhi HE

doi:10.3788/YJYXS20193411.1067

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Analysis and improvement research of black uniformity for tablet personal computer production

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

- Analysis and improvement research of black uniformity for tablet personal computer production
- Chinese Journal of Liquid Crystals and Displays Vol. 34, Issue 11, Pages: 1067-1072(2019)
- 作者机构：
  
  合肥鑫晟光电科技有限公司, 安徽合肥 230012
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20193411.1067
  CLC： TN141.9
- Received：15 March 2019，
  
  Accepted：11 September 2019，
  
  Published：05 November 2019
- 稿件说明：
移动端阅览
Yong-yong JIANG, Jian WU, Dong GUO, et al. Analysis and improvement research of black uniformity for tablet personal computer production[J]. Chinese journal of liquid crystals and displays, 2019, 34(11): 1067-1072.
DOI：

Yong-yong JIANG, Jian WU, Dong GUO, et al. Analysis and improvement research of black uniformity for tablet personal computer production[J]. Chinese journal of liquid crystals and displays, 2019, 34(11): 1067-1072. DOI： 10.3788/YJYXS20193411.1067.

摘要

在TFT-LCD工艺制作过程中，平板电脑产品一直存在暗态画面不均问题，对产品良率的影响较大，本文主要从产品设计、工艺参数调整、制程控制等方面进行研究，分析产品暗态均匀性的影响因素。研究表明，产品暗态均匀性主要受到暗态画面亮度和液晶显示器模组平坦度两个方面影响，暗态画面亮度越低，暗态均匀程度越好；液晶显示器模组平坦度平坦度越好，暗态均匀程度越好。结合实际生产，通过这两个方面的改善，探讨出一套暗态均匀性的管控改善方案，有效地管控了暗态均匀性的程度。

Abstract

Black nonuniformity is a serious defect in the production of TFT-LCD

especially for Tablet Personal Computer products. This paper analyzes the vital factors of affecting black uniformity from product design

process parameters and process control

and finds that it is affected by the black pattern brightness and Liquid Crystal Display Module flatness. The lower brightness of the black pattern

the better black uniformity will be. The better LCM fatness is

the better black uniformity will be. Combining with the production of TFT-LCD

a black uniformity control scheme is proved effectively

through reducing the brightness of black pattern and improving LCM flatness.

关键词

Keywords

references

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