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Optical touch control method and device thereof

A technology of optical touch and display devices, applied in the direction of instruments, electrical digital data processing, input/output process of data processing, etc., can solve the problems of inconvenience, general methods and products without suitable methods and structures, etc.

Inactive Publication Date: 2010-11-17
董兰荣
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] It can be seen that the above-mentioned existing touch technology obviously still has inconvenience and defects in methods, product structure and use, and needs to be further improved urgently.
In order to solve the above-mentioned existing problems, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and there is no suitable method and structure for general methods and products to solve the above-mentioned problems. This is obviously a problem that relevant industry players are eager to solve

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Embodiment Construction

[0051] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the specific implementation methods, methods, and steps of the optical touch method and its device proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , structure, feature and effect thereof, detailed description is as follows.

[0052] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. For convenience of description, in the following embodiments, the same elements are denoted by the same numbers.

[0053] Some embodiments of the present invention will be described in detail as follows. However, in addition to the following descriptions, the present invention can also be widely i...

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Abstract

The invention discloses optical touch control method and device thereof. The optical touch control method comprises the following steps of supplying a shadow of an object by a light source, and judging the position and a time point of the object touching a display device according to the width variation of the shadow. By making use of the touch control method, the optical touch control device can be applied to a large size display device without adding excessive cost. The optical touch control device comprises a first light source and a sensor, wherein the sensor judges the position and the time point of the object touching the display device according to the width of the object shadow generated by the first light source.

Description

technical field [0001] The present invention relates to an optical touch method and a device thereof, in particular to an optical touch method and a device thereof for determining touch occurrence by using object shadows. Background technique [0002] The touch device has become an essential component of most electronic devices today, and is commonly found in ordinary automatic teller machines. Nowadays, many handheld devices, such as mobile phones and personal digital assistants, etc., gradually have more and more extensive applications for touch control. Touch technology can be mainly divided into resistive, capacitive, optical and so on. The driving principle of the resistive type is to use the method of voltage drop to find the coordinate axis. When the resistive touch screen is touched, the voltage drop will be generated due to the conduction of the circuit, and in the horizontal and vertical directions of the panel , with different positions, the voltage drop is also...

Claims

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Application Information

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IPC IPC(8): G06F3/042
Inventor 董兰荣
Owner 董兰荣
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