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Apparatus for detecting a touch point of a touch panel

A touch panel and detection device technology, applied in the input/output process of data processing, the input/output of user/computer interaction, instruments, etc., can solve problems such as decreased reflection efficiency

Inactive Publication Date: 2012-01-04
HOGAHM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the retro-reflective tape applied to the background part of the reflective camera type is the same as a general reflector, and its reflection efficiency decreases when the incident angle is large and the distance from the lighting device (light source) is far away. The size of the touch panel that can be realized and the aspect ratio of the touch panel have certain limitations.

Method used

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  • Apparatus for detecting a touch point of a touch panel
  • Apparatus for detecting a touch point of a touch panel
  • Apparatus for detecting a touch point of a touch panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The first embodiment relates to the touch position detection device of the touch panel using retro-reflective tape provided by the present invention.

[0035] figure 1 Shows a schematic diagram of the first embodiment, figure 2 A partial enlarged view of the retro-reflective belt of Example 1 is shown.

[0036] Reference figure 1 , The first embodiment has a touch panel 100. The touch panel 100 is formed in a rectangular shape in which the upper and lower sides are long sides, and the left and right sides are short sides. The length of the long side is expressed as L 1 , The length of the short side is expressed as H 1 . In addition, L 1 : H 1 The ratio can be 16:9.

[0037] Reference figure 1 , The periphery of the touch panel 100 is provided with retro-reflective tapes 200, 310, and 320. The retro-reflective belts 200, 310, and 320 are reflectors that reflect light from the light source in the incident direction, and are manufactured using the principle of forming fine g...

Embodiment 2

[0071] The second embodiment relates to another touch position detection device of a touch panel using retro-reflective tape provided by the present invention.

[0072] Figure 5 Is a schematic diagram of the second embodiment, Image 6 It is a partial enlarged view of the retro-reflective belt of Example 1.

[0073] Reference Figure 5 The second embodiment has a touch panel 1100. The touch panel 1100 is formed in a rectangular shape in which the left side and the right side are long sides, and the upper and lower sides are short sides. The length of the long side is expressed as L 2 , The length of the short side is expressed as H 2 . In addition, L 2 : H 2 The ratio can be 16:9.

[0074] Reference Figure 5 , The periphery of the touch panel 1100 is provided with retro-reflective tapes 1200, 1310, and 1320.

[0075] Reference Figure 5 A first light-emitting portion 1410 and a second light-emitting portion 1420 are provided on the upper side of the touch panel 1100 in isolation. ...

Embodiment 3

[0100] The third embodiment relates to another touch position detection device of a touch panel using retro-reflective tape provided by the present invention.

[0101] Figure 7 Is a schematic diagram of the third embodiment, Figure 8 It is a partial enlarged view of the zigzag reflection part for the first light in the zigzag reflection part for light on both sides of the third embodiment, Picture 9 It is a partial enlarged view of the zigzag reflector for light rays on both sides of the third embodiment.

[0102] Reference Figure 7 , The third embodiment has a touch panel 2100. The touch panel 2100 is formed in a rectangular shape in which the upper and lower sides are long sides, and the left and right sides are short sides. The length of the long side is expressed as L 3 , The length of the short side is expressed as H 3 . In addition, L 3 : H 3 The ratio can be 16:9.

[0103] Reference Figure 7 , The periphery of the touch panel 2100 is provided with retro-reflective tape...

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Abstract

Disclosed is an apparatus for detecting a touch point of a touch panel, which is used in a reflective camera type touch panel. In the apparatus for detecting a touch point of a touch panel, a whole or part of a side surface of a reflecting portion is formed into a saw shape, thereby overcoming restrictions in an aspect ratio and a size of the touch panel.

Description

Technical field [0001] The present invention relates to a touch position detection device applied to a touch panel of a reflective camera-type touch panel, and relates to setting part or all of the side surface shape of a reflecting part used for reflection in a zigzag shape, thereby eliminating the need for the touch panel The touch position detection device of the touch panel is limited by the length ratio of the long side to the short side and the size of the touch panel. Background technique [0002] The touch panel is a device that transmits user commands to a computer or a display device, and is a device that uses objects such as a user's finger or a pen to replace the function of the mouse. This kind of touch panel is installed in front of the screen of LCD, PDP, projector (front / rear), etc., and has the advantage that the user can directly write blackboard writing or drawing on the screen while giving commands corresponding to the screen. It has the purpose of writing bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/03G06F3/041
CPCG06F3/0428G06F3/0416
Inventor 赵东焕
Owner HOGAHM TECH