Active touch sensing circuit apparatus

A touch sensing and circuit device technology, applied in electrical digital data processing, optics, instruments, etc., can solve problems such as difficulty in reading, high power consumption, and increased cost.
CN102778982AActive Publication Date: 2012-11-14ACER INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ACER INC
Publication Date
2012-11-14

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Abstract

The invention discloses an active matrix touch sensing circuit apparatus suitable for a touch panel. The active matrix touch sensing circuit apparatus comprises a sensing unit, a resistor, and a transistor. The resistor is connected with the sensing unit and a first scan line. A control end of the transistor is connected with the sensing unit, an input end of the transistor is connected with a second scan line, and an output end of the transistor is connected with a read out line. When a sensing value of a body touch sensing unit is changed, the input wave form of the control end is changed, the output end outputs an open current, and the read out line transmits the open current.
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Description

technical field

[0001] The present invention relates to an active touch sensing circuit, in particular to a sensing circuit composed of capacitors, resistors and transistors, which uses a momentary large open current as a sensing signal to reduce power consumption and increase Reaction time. Background technique

[0002] The touch panel has a wide range of applications, including portable information, consumer and communication products, financial or commercial purposes, factory automation control systems, and public information purposes. In addition, since major manufacturers launched popular touch mobile devices such as smart phones and tablet computers, users have re-experienced the convenience of touch products, and at the same time, another change has occurred in operating habits. Consumer goods have begun to Try to introduce a more convenient touch solution to replace mechanical switches that are prone to aging, failure, dust, and corrosion. The planar configuration i...

Claims

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