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Infrared touch screen and touch panel thereof

An infrared touch screen and touch panel technology, which is applied in the input/output process of instruments, electrical digital data processing, and data processing, etc., can solve problems such as affecting the service life of the infrared touch screen, affecting the accuracy of the infrared touch screen, and inability to accurately locate the touch point. , to achieve the effect of simple structure, not easy to deform, and accurate operation

Inactive Publication Date: 2015-04-15
BOSCH AUTOMOTIVE PROD SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the light guide element 11 is long and narrow, and the touch panel 12 is also relatively thin. Both of them are easily deformed by external force.
The deformed light guide element 11 and touch panel 12 will change the transmission path of infrared light, and cannot accurately locate the position of the touch point on the touch panel, which will affect the accuracy of the operation of the infrared touch screen
[0009] In addition, since the light guide element 11 is fixed to the touch panel 12 by pasting, it requires high assembly precision.
If the fixation between the two is unreliable, it is easy to separate from each other during transportation or use, which will affect the service life of the infrared touch screen

Method used

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  • Infrared touch screen and touch panel thereof
  • Infrared touch screen and touch panel thereof
  • Infrared touch screen and touch panel thereof

Examples

Experimental program
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Embodiment Construction

[0018] Preferred embodiments of the present invention are described below with reference to the accompanying drawings.

[0019] Such as image 3 As shown, a touch panel 20 of an infrared touch screen according to a preferred embodiment of the present invention, the touch panel 20 is roughly rectangular, including a touch portion 21 and a light guide element 22, wherein the light guide element 22 is integrated with the touch portion 21 form.

[0020] In this embodiment, the light guide element 22 completely surrounds the edge of the touch portion 21 . In other embodiments, according to actual needs, the light guide element 22 is only partially disposed on the edge of the touch portion 21 . Alternatively, according to actual needs, the light guide element 22 surrounds or is only partially disposed on other parts of the touch portion 21 , such as the lower surface or the upper surface of the touch portion 21 .

[0021] The material of the light guide element 22 and the materia...

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PUM

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Abstract

A touch panel of an infrared touch screen is provided, which comprises a touch portion and a light guide element, wherein the light guide element is formed integrally with the touch portion. The touch panel of the invention, due to its touch portion and its light guide element being integrally formed, has a simple structure and an improved ability of enduring an external force and is not easy to be deformed by the external force. In this way, a precise light transmission path can be ensured, a touch point can be precisely positioned into a location on the touch panel, and mis-operation can be avoided. The infrared touch screen with the touch panel according to the invention provides advantages including a simple structure, better endurance and enabling precise operation.

Description

technical field [0001] The invention relates to an infrared touch screen and a touch panel thereof. Background technique [0002] A touch screen device is a device that touches characters or icons displayed on the screen with human hands or pens without using an input device such as a mouse to determine the position and calculate the input signal to process a specific function. [0003] These touch panel devices are classified into a resistive film type, an electrostatic capacitance type, an ultrasonic type, an infrared type, etc. according to a method for calculating a position touched on the screen. [0004] Please refer to figure 1 and figure 2 , figure 1 It is a schematic structural diagram of a traditional infrared touch screen, figure 2 yes figure 1 A partial cross-sectional view of the combined traditional infrared touch screen is shown. The infrared touch screen includes a front frame 10 , a light guide element 11 , a touch panel 12 , a liquid crystal display...

Claims

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Application Information

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IPC IPC(8): G06F3/042
CPCG06F3/0421G06F3/0428
Inventor 申屠建刚陈萍刘新强施皆佩J.利普弗特P.屈恩M.维利希K.沃尔
Owner BOSCH AUTOMOTIVE PROD SUZHOU
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