Improvement Research of Line Image Sticking by Drive Signal in TFT-LCD

LIN Hong-tao; XI Yu-sheng; HU Hai-chen; HU Wei-hao; ZHANG Liang; SHAO Xi-bin

doi:10.3788/YJYXS20122703.0359

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Improvement Research of Line Image Sticking by Drive Signal in TFT-LCD

Driving & Controlling | 更新时间：2020-08-12

- Improvement Research of Line Image Sticking by Drive Signal in TFT-LCD
- Chinese Journal of Liquid Crystals and Displays Vol. 27, Issue 3, Pages: 359-363(2012)
- 作者机构：
  
  京东方显示技术有限公司北京,100176
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20122703.0359
  CLC： TN141.9
- Received：06 February 2012，
  
  Revised：01 March 2012，
  
  Published Online：15 June 2012，
  
  Published：15 June 2012
- 稿件说明：
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林鸿涛, 郤玉生, 胡海琛, 胡巍浩, 张亮, 邵喜斌. TFT-LCD中驱动信号对线残像的改善研究[J]. 液晶与显示, 2012,(3): 359-363

LIN Hong-tao, XI Yu-sheng, HU Hai-chen, HU Wei-hao, ZHANG Liang, SHAO Xi-bin. Improvement Research of Line Image Sticking by Drive Signal in TFT-LCD[J]. , 2012,(3): 359-363
林鸿涛, 郤玉生, 胡海琛, 胡巍浩, 张亮, 邵喜斌. TFT-LCD中驱动信号对线残像的改善研究[J]. 液晶与显示, 2012,(3): 359-363 DOI： 10.3788/YJYXS20122703.0359.

LIN Hong-tao, XI Yu-sheng, HU Hai-chen, HU Wei-hao, ZHANG Liang, SHAO Xi-bin. Improvement Research of Line Image Sticking by Drive Signal in TFT-LCD[J]. , 2012,(3): 359-363 DOI： 10.3788/YJYXS20122703.0359.

摘要

通过对TFT-LCD去隔行扫描输入信号易产生线残像的问题进行分析

考察线残像产生的原因与驱动信号之间的关联。结果表明

通过改变驱动信号的极性反转方式可以改善线残像

但改善线残像同时却带来了闪烁问题。经过进一步研究分析

通过增加预充电信号以及控制TFT特性的开关比可以有效解决改善输入信号后带来的闪烁问题

并给出了相应的原理解释。为线残像的分析和改善提供了解决方法和理论依据。

Abstract

The de-interlaced scan input signal is easy to produce line image sticking in TFT-LCD. This paper researched the relationship between line image sticking with the drive signal. The result shows that line image sticking can be reduced by changing the polarity inversion mode of drive signal. At the same time by adding the pre-charge and controlling the TFT current ratio of

off

the flash problem brought by changing drive signal could be resolved. The research established the solution and theoretical basis for line image sticking.

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references

Nanno Y, Mino Y, Takeda E, et al. Characterization of sticking effects of TFT-LCD [J]. SID, 1990, 9(5): 404-407.

Lien A, Chen C J, Inoue H, et al. Image sticking measurement of LCDs [J]. SID, 1997,28(1):203-206.

Neyts K, Vermael S, Desimpel C, et al. Lateral ion transport in nematic liquid-crystal devices [J]. J. App. Phys., 2003, 94(6): 3891-3896.

李永忠, 纪伟丰, 周炎宏. STN-LCD残影显示的原理分析及实验研究 [J]. 液晶与显示, 2011, 12(6): 733-740.

李宝魁, 姚素英, 张涛. 视频格式转换芯片中的去隔行系统设计 [J]. 电视技术, 2005,281(11):35-40.

岳雷飞. 视频格式转换中去隔行算法的研究. 合肥:合肥工业大学硕士学位论文, 2010.

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Related Institution

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