LC drop process based on PS height of color filter

Qi XIONG; Zhi-jun XU; Zong-shun YANG; Ming-Lei FAN; Zhi-cong ZHANG; Hong-bo HU; De-bo YANG; Zu-jiang QIN; Yong XIONG

doi:10.3788/YJYXS20203505.0437

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LC drop process based on PS height of color filter

Materials and Devices | 更新时间：2020-08-12

- LC drop process based on PS height of color filter
- Chinese Journal of Liquid Crystals and Displays Vol. 35, Issue 5, Pages: 437-443(2020)
- 作者机构：
  
  重庆京东方光电科技有限公司重庆 400714
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20203505.0437
  CLC： TN141.9
- Received：16 October 2019，
  
  Revised：13 December 2019，
  
  Accepted：13 December 2019，
  
  Published：05 May 2020
- 稿件说明：
移动端阅览
Qi XIONG, Zhi-jun XU, Zong-shun YANG, et al. LC drop process based on PS height of color filter[J]. Chinese journal of liquid crystals and displays, 2020, 35(5): 437-443.
DOI：

Qi XIONG, Zhi-jun XU, Zong-shun YANG, et al. LC drop process based on PS height of color filter[J]. Chinese journal of liquid crystals and displays, 2020, 35(5): 437-443. DOI： 10.3788/YJYXS20203505.0437.

摘要

液晶滴下工艺是TFT-LCD生产中的关键技术。液晶的滴下量一般选取在不发生低温气泡和高温重力Mura的范围内，这被称为LC Margin。LC Margin越窄，液晶滴下的中心量距离上下限的范围越小，生产过程中随工艺波动容易出现低温气泡和重力Mura不良。本文针对LC Margin窄的产品（≤ 3%）提出了根据彩色滤光片柱状隔垫物的高度进行整批次分液晶面板进行液晶滴下的方法。生产过程中对该方法产出的液晶面板进行高低温测试，结果显示没有重力Mura及低温气泡出现，优化了液晶滴下工艺，为LC Margin窄的产品在生产中应用提供了一种新的解决方案。

Abstract

Liquid crystal drop process is the key to the TFT -LCD technology. Generally

the selection of liquid crystal drop amount of products refer to the range of liquid crystal without cold bubble and gravity Mura

that is

LC Margin. The narrower the margin is

the smaller the range of upper and lower limits of the liquid crystal center distance of the product

and the cold bubble and gravity Mura are liable to occur during the process fluctuation. In this paper

a method of liquid crystal drop by panel is proposed according to the PS height of color filter for products with narrow LC Margin (≤ 3%). There is no cold bubble and gravity Mura in the test of high and low temperature during the production process with this method

at the same time

the liquid crystal dropping process was optimized. It provides a new solution for products with narrow LC Margin.

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Keywords

references

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