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Optical touch device

A technology of optical touch and touch panel, applied in measuring devices, instruments, electrical digital data processing, etc., can solve problems such as inability to input, achieve the effect of reducing restrictions and improving flexibility

Active Publication Date: 2011-01-05
XUZHOU NADIA ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using the product that allows the user to use fingers or other pointers to input without touching the screen surface, if the user is far away from the screen, the input cannot be completed; while using the product that is input by remote control , and no user input is possible without a controller

Method used

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Experimental program
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Embodiment Construction

[0010] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0011] See figure 1 and figure 2 , the optical touch device 1 provided by the present invention includes a touch panel 10, the touch panel 10 is roughly square, at least one infrared light source 11 is arranged around the touch panel 10, and the at least one infrared light source 11 The emitted light covers the surface of the touch panel 10 , and the infrared light source 11 is an infrared LED. In this embodiment, the number of the infrared light sources 11 is two, and they are arranged at two corners of the same side of the touch panel 10 .

[0012] At least two linear sensors 12 are respectively arranged on the periphery of the touch panel 10, one of which is used to sense the infrared light reflected when an object touches the touch panel 10 in the x-axis direction, and the other is used for The infrared light reflected when an objec...

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PUM

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Abstract

The invention relates to an optical touch device capable of realizing multiple induction. The optical touch device comprises a touch panel, at least one infrared source, at least two linear sensors, a controller, a signal receiving device and at least two infrared image sensors, wherein the infrared source is arranged on the periphery of the touch panel, and infrared light emitted by the infraredsource covers the surface of the touch panel; at least two linear sensors are arranged on the periphery of the touch panel to sense the infrared light reflected when an object touches the touch panel; the controller is used for forming an infrared spot on the touch panel and sending a remote control signal to carry out remote control input on the touch panel; the signal receiving device is connected with the touch panel and is used for receiving the remote control signal of the remote control; the infrared image sensors are connected with the touch panel and are used for shooting the infraredspot projected by the controller onto the touch panel to determine the position and the movement locus of the infrared spot on the touch panel.

Description

technical field [0001] The invention relates to an optical touch device, in particular to an optical touch device capable of realizing multiple sensing. Background technique [0002] With the advent of the flat display era, technologies such as flat CRT displays, liquid crystals, and plasma displays continue to mature and popularize, and the advantages of optical touch interaction technology based on the principle of infrared scanning detection technology are prominent, and relying on this, the market advantage is becoming more and more obvious. . [0003] At present, products using optical touch technology emerge in endlessly, which are mainly divided into two categories. One is optical touch products that input on the surface of the touch screen, such as Quanta’s optical touch LED screen, which allows users to Use fingers or other pointers to input without touching the screen surface; the other is products that do not need to be close to the display and input by remote co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G01P15/00G01P9/00
CPCG06F3/0386G06F3/03542G06F3/0428G06F3/0346
Inventor 陈杰良
Owner XUZHOU NADIA ELECTRONICS TECH