车载电容触摸屏的灵敏度与抗噪性能优化策略分析  

Analysis of Optimization for Sensitivity and Anti-noise Performance of Vehicle Capacitive Touch Screen

作　　者：刘余东 LIU Yudong(Shantou Ultrasonic Display Technology Co.,Ltd.,Guangdong 515065,China.)

机构地区：[1]汕头超声显示器技术有限公司,广东515065

出　　处：《电子技术（上海）》2023年第5期31-33,共3页Electronic Technology

摘　　要：阐述车载投射式电容触摸屏的结构,根据车载电容触摸屏尺寸结构及电极影响触摸屏的机理,提出通过对ITO进行多电极化处理,可以提高车载电容触摸屏信号的稳定性,增加交互电容变化量,提高车载电容触摸屏灵敏度。This paper describes the structure of the vehicle mounted projected capacitive touch screen.According to the size and structure of the vehicle mounted capacitive touch screen and the mechanism of the electrode affecting the touch screen,it is proposed that the stability of the vehicle mounted capacitive touch screen signal can be improved,the variation of the interactive capacitance can be increased,and the sensitivity of the vehicle mounted capacitive touch screen can be improved by multi polarization treatment of ITO.

关 键 词：车载电容触摸屏 灵敏度 信噪比 

分 类 号：TN873[电子电信—信息与通信工程]