一种消除触控屏LCD干扰的方法及装置制造方法及图纸

一种消除触控屏LCD干扰的方法及装置，触控屏具有驱动线以及感应线，方法包括：将存在LCD干扰的非触控位置的感应线上的解调信号值与感应线上未受到LCD干扰的参考解调信号值进行差分计算，得到第一差分值(S1)；当前帧非触控位置的感应线上的解调信号值与第一差分值进行差分计算，得到第二差分值(S2)；根据第二差分值进行运算，得到消除LCD干扰的电容节点原始数据(S3)，用以消除触控屏的LCD干扰。

A Method and Device for Eliminating LCD Interference of Touch Screen

A method and device for eliminating LCD interference of touch screen. The touch screen has drive line and induction line. The method includes: calculating the difference between the demodulation signal value on the induction line of non-touch position with LCD interference and the reference demodulation signal value on the induction line without LCD interference, and obtaining the first difference value (S1); the demodulation signal value on the induction line of non-touch position of the current frame and the first difference value. The second difference value (S2) is obtained by differential calculation, and the original data of capacitor node (S3) to eliminate LCD interference is obtained by calculating the second difference value, which is used to eliminate LCD interference of touch screen.

【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。

【技术保护点】
PCT国内申请，权利要求书已公开。

【技术特征摘要】
【国外来华专利技术】PCT国内申请，...

【专利技术属性】
技术研发人员：杨烊，方军，
申请(专利权)人：深圳市汇顶科技股份有限公司，
类型：发明
国别省市：广东,44