Touch panels and methods of examining touch panels
AssigneeAcer Incorporated
InventorsJia-Yu LIN, Chih-Chiang CHEN
Life of this patent
Estimating the term…
Abstract
The present invention provides a touch panel, including a touch-sensing circuit, an ESD protection circuit, and a processor. The touch-sensing circuit is composed of a plurality of sensing pads for sensing at least one touching object and outputting a sensing signal. The ESD protection circuit is connected to the touch-sensing circuit, surrounds the touch sensing circuit, and generates a circuit-loading. The processor is coupled to the touch sensing circuit and the ESD protection circuit to receive the sensing signal and the circuit-loading, performs an action according to the sensing signal, and determines whether to generate a warning signal according to a circuit-load change.
Claims10
A touch panel, comprising:
- a touch-sensing circuit, constituted by a plurality of sensing pads for sensing at least one touching object, outputting a sensing signal;
- an ESD protection circuit, connected to the touch-sensing circuit, surrounding the touch-sensing circuit and generating a circuit-load;
- and
- a processor, coupled to the touch-sensing circuit and the ESD protection circuit for receiving the sensing signal and the circuit-load, performing an action according to the sensing signal and determining whether to generate a warning signal according to a circuit-load change.
A method of examining touch panel, comprising:
- sensing, using a touch-sensing circuit, at least one touching object to output a sensing signal, wherein the touch-sensing circuit consists of a plurality of sensing pads;
- performing, using a processor, an action according to the sensing signal;
- receiving, using the processor, a circuit-load of an ESD protection circuit, wherein the ESD protection circuit is connected to the touch-sensing circuit and surrounds the touch-sensing circuit;
- and
- determining, using the processor, whether to generate a warning signal according to a circuit-load change.
Dependencies are inferred from the claim text.