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。
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.
出处
《液晶与显示》
CAS
CSCD
北大核心
2010年第6期808-811,共4页
Chinese Journal of Liquid Crystals and Displays
关键词
张弛振荡
投射电容式
触摸感应
可靠
relaxation oscillations
projected-capacitive
touch sensor
reliability
