US 2014/0176497 A1Published application

Method of avoiding mutual interference of touch detection with lcd scan

AssigneeFocaltech Systems Co., Ltd.

InventorsMichael Mo, Xinxi Jiang, Junqiao Liu

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Abstract

A method of avoiding the mutual interference of touch detection with LCD scan, based on the LCD touch screen set with capacitive touch sensor. As to the said method, first of all, divide the entire LCD touch screen into at least two regions; then, set the touch detection timing sequence and LCD scan timing sequence for the LCD touch screen, enabling the touch detection process and LCD scan process to meet the condition of only conducting one process of touch detection process and LCD scan process within the same time period and same region, thus, enabling both of the touch detection process and LCD scan process to keep mutual independent running status either in time domain or in spatial domain. The invention has separated the touch detection process and LCD scan process from time domain and spatial domain, avoiding mutual interaction and mutual interference of the two processes.

Claims9

Dependent claims

A method of avoiding mutual interference of touch detection with LCD scan, based on LCD touch screen set with capacitive touch sensor;

the said LCD touch screen comprises LCD components and capacitive touch sensor components;
the said capacitive touch sensor components and the LCD components are mutually independent and laminated, set to be LCD touch screen, or the said capacitive touch sensor components are inserted between each layer in the LCD components by layers to form LCD touch screen, featuring that the said method comprises the following steps:
A. divide the whole LCD touch screen into at least two regions;
B. set touch detection timing sequence and LCD scan sequence of the LCD touch screen, enable the touch detection process and LCD scan process to meet a process of merely conducting touch detection process and LCD scan process within the same time interval and same region, thus, enabling touch detection process and LCD scan process to keep mutually independent running state either within time domain or spatial domain

1 more element

Dependencies are inferred from the claim text.