Solution of Image Crosstalk Time-Sharing Driver LED Display

XIANG Jian-yong; QI Yong; GOU Chao

doi:10.3788/YJYXS20132803.0398

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Solution of Image Crosstalk Time-Sharing Driver LED Display

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

- Solution of Image Crosstalk Time-Sharing Driver LED Display
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 3, Pages: 398-402(2013)
- 作者机构：
  
  西安电子科技大学技术物理学院, 陕西西安 710071
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132803.0398
  CLC： TN919.8
- Received：25 December 2012，
  
  Revised：21 January 2013，
  
  Published：15 June 2013
- 稿件说明：
移动端阅览
向健勇, 戚勇, 苟超. 分时驱动式LED显示屏图像串扰的解决方法[J]. 液晶与显示, 2013,28(3): 398-402

XIANG Jian-yong, QI Yong, GOU Chao. Solution of Image Crosstalk Time-Sharing Driver LED Display[J]. , 2013,28(3): 398-402
向健勇, 戚勇, 苟超. 分时驱动式LED显示屏图像串扰的解决方法[J]. 液晶与显示, 2013,28(3): 398-402 DOI： 10.3788/YJYXS20132803.0398.

XIANG Jian-yong, QI Yong, GOU Chao. Solution of Image Crosstalk Time-Sharing Driver LED Display[J]. , 2013,28(3): 398-402 DOI： 10.3788/YJYXS20132803.0398.

摘要

分时驱动式LED显示技术已经很成熟

但是由于高频硬件电路运行时会在电路板级产生寄生元件

导致显示图像发生串扰。文章分析了实际电路中产生寄生电容的原因

采用稳压电路消除行间寄生电容

并基于FPGA设计了输出两态的列驱动电路。实验结果表明

相比于传统的分时驱动式LED能够彻底消除图像串扰现象。

Abstract

The technology of time-sharing driver type LED has become very mature

but parasitic element will be produced in the circuit board level during the operation of the high frequency hardware circuit

which leads to picture crosstalk. The reasons of the parasitic capacitance in the actual circuit are analysed

then the voltage regulator circuit is adopted to eliminate the inter-row parasitic capacitance

and column driver circuit with two state gate output is designed based on FPGA. The experimental result shows that the method proposed can eliminate the image crosstalk phenomenon completely compared with the traditional time-sharing driver type LED.

关键词

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references

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Related Institution

College of Information Science and Engineering, Henan University of Technology

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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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