Design of Touch Sensing Capacitor Based on Relaxation Oscillation Principle

LI Bing-bing; ZHOU Ye; HUANG Zi-qiang

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Design of Touch Sensing Capacitor Based on Relaxation Oscillation Principle

Device Technology & Physics | 更新时间：2020-08-12

- Design of Touch Sensing Capacitor Based on Relaxation Oscillation Principle
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 6, Pages: 808-811(2010)
- 作者机构：
  
  电子科技大学光电信息学院,四川成都,610054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN27;TP334
- Received：23 April 2010，
  
  Revised：28 May 2010，
  
  Published Online：20 December 2010，
  
  Published：20 December 2010
- 稿件说明：
移动端阅览
李兵兵, 周烨, 黄子强. 基于张弛振荡原理的触摸感测电容设计[J]. 液晶与显示, 2010,25(6): 808-811

LI Bing-bing, ZHOU Ye, HUANG Zi-qiang. Design of Touch Sensing Capacitor Based on Relaxation Oscillation Principle[J]. , 2010,25(6): 808-811
李兵兵, 周烨, 黄子强. 基于张弛振荡原理的触摸感测电容设计[J]. 液晶与显示, 2010,25(6): 808-811 DOI：

LI Bing-bing, ZHOU Ye, HUANG Zi-qiang. Design of Touch Sensing Capacitor Based on Relaxation Oscillation Principle[J]. , 2010,25(6): 808-811 DOI：

摘要

投射电容式触摸屏的关键问题在于采用稳健可靠的感测电路并设计合适的感应层图案以及相应的触点算法来提高可靠性并降低成本。文章介绍了一种基于张弛振荡原理的电容触摸感测系统设计方案

运用该方案测试了投射电容式触摸屏的电容值并对数据进行了分析

为开辟单点或多点触摸算法提供依据。

Abstract

For the projected-capacitive touch screen

the key issue is to improve reliability and reduce cost by a very robust and reliable sensing circuitry

appropriate sensing layer patterns and corresponding algorithms. This paper presents a design scheme of capacitive touch sen-sing system based on the principle of relaxation oscillation

and uses the program on the projected-capacitive touch screens to test capacitance and analyze data to provide the basis to open up a single point or multi-point touch method.

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references

Feland J,赵立晴. 触摸未来:投射电容式触摸屏引领新市场[J]. 现代显示, 2009,(4):15-19.[2] Hal Philipp. 触摸屏设计日益简化投射式电容触摸屏前景广阔[J]. 中国电子商情(基础电子), 2009,(9):26-29.[3] 郑赞. 触摸屏多点触摸技术揭秘[J]. 电子产品世界, 2008,15(11):121-124.[4] 鲁冰. 电容式触摸屏系统解决方案[J]. 电子产品世界, 2008,15(12):51-53.[5] Philipp H. 不断发展的触摸屏技术[J]. 世界电子元器件, 2008,(4):22-26.[6] Silicon Laboratories Inc. AN338: Capacitive touch sense solution . .http://www.silabs.com/.[7] Seguine R, Lee M. PSoC CapSenseTM的布局指南 . .http://www.cypress.com/?docID= 13474.

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Related Author

TONG Hua-liang

LIN Zhi-xian

GUO Tai-liang

Related Institution

College of Physics and Information Engineering of Fuzhou University

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