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Light-sensing touch-control device and method

A touch-control device and light-sensing technology, which is applied in the fields of instruments, electrical digital data processing, and data processing input/output processes, etc., can solve problems such as misjudgment of touch devices

Inactive Publication Date: 2014-06-18
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the difference between the sensing signal of the illuminated state and the sensing signal of the non-illuminated state is not large, the touch device may make a misjudgment, causing the user to cover the touch panel while the touch device generates a touch judgment, or the touch device uses a light pen but no touch response

Method used

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  • Light-sensing touch-control device and method

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Embodiment Construction

[0054] The following embodiments will be described in detail in conjunction with the accompanying drawings, but the provided embodiments are not intended to limit the scope of the present invention, and the description of the structure and operation is not intended to limit the order of its execution, any structure recombined by components, The resulting devices with equivalent functions are within the scope of the present invention. In addition, the drawings are for illustration purposes only and are not drawn to original scale.

[0055] As used herein, "coupling" or "connection" can refer to two or more elements that are in direct physical or electrical contact with each other, or indirect physical or electrical contact with each other, or can refer to two or more components. Multiple elements interact or act with each other.

[0056] figure 1 It is a schematic diagram illustrating a light-sensing touch device according to an embodiment of the present invention. Such as ...

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Abstract

The invention provides light-sensing touch-control device and method. The light-sensing touch-control device, applied to a touch-control panel, comprises a plurality of light-sensing circuits, a plurality of control read switches, and an output unit. The light-sensing circuits are used for respectively outputting a light-sensing signal. The control read switches are respectively connected with one of the light-sensing circuits, and respectively receive a control read signal. The control read switches are sequentially switched on at the starting time according to the control read signals, and a self-light-sensing cirucit is used for receiving and outputting a light-sensing signal. Moreover, the switching-on time of at least two control read switches are the same. The output unit is electrically connected with the control read switches, and used for receiving the light-sensing signal for outputting a read signal.

Description

technical field [0001] The present invention relates to a touch device, in particular to a light-sensing touch device applied to a touch panel. Background technique [0002] In recent years, tactile man-machine communication interfaces (such as touch panels) have been widely used. With the gradual diversification of touch panel sizes, the touch sensing technology of large-size touch panels is becoming more and more important. However, the signal generated by the touch action in the large-size touch panel will become smaller during the transmission process, making it difficult for the touch device to determine the occurrence of the touch action. [0003] Generally speaking, the sensing signals of the traditional light-sensing touch device are different in the illuminated state and the non-illuminated state, and the touch device judges whether a touch action occurs based on the signal difference. However, when the difference between the sensing signal of the illuminated state...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
Inventor 林刚毅徐雅玲连崇闵
Owner AU OPTRONICS CORP