Double-camera touch screen and touch pen thereof

A dual-camera, touch-screen technology, applied in instruments, electrical digital data processing, and data processing input/output processes, etc., can solve problems such as poor anti-interference ability, low resolution, and inconvenient remote control.

Active Publication Date: 2013-11-20
嘉善陶庄再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People cannot get the feeling and convenience of original writing through the touch screen
The existing touch screens still have disadvantages such as poor anti-interference ability, low resolution, and inconvenient remote control.

Method used

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  • Double-camera touch screen and touch pen thereof
  • Double-camera touch screen and touch pen thereof
  • Double-camera touch screen and touch pen thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0119] Specific embodiment one, take the light-transmitting protective plate in front of the screen as the touch panel:

[0120] The following content focuses on the case where the photosensitive element group is not provided with a converging lens. For the case of replacing it with a photosensitive element group provided with a converging lens, it has already been described above, and will not be explained in detail.

[0121] The photosensitive element group is arranged around the touchpad. Around the touchpad, including the front, rear, and sides along the sides of the touchpad. Specifically, refer to Figure 5 A photosensitive element group 502 composed of a row of photosensitive elements arranged horizontally is arranged on the top of the touch panel 501 , and a photosensitive element group 503 composed of a row of photosensitive elements arranged vertically is arranged on the left side. The photosensitive element group 502 and the photosensitive element group 503 can b...

specific Embodiment 2

[0164] Specific embodiment two, take the screen of rear projection type display as touchpad:

[0165] refer to Figure 1 to Figure 9 , the dual-camera touch screen uses the screen of the rear projection display as the touch panel 501 and the protective plate as the touch panel 501, and the structure and principle are basically the same.

[0166] One of the differences is that if the screen of the rear-projection display is not a transparent medium, the light cannot be transmitted in an orderly manner inside the screen of the rear-projection display, so it is not convenient to operate with non-luminous touch elements.

[0167] The second difference is that the screen of the rear-projection display is generally large, and further design is required to ensure that the light signal emitted from the light spot can be received smoothly.

[0168] The screen of the existing large-screen rear projection display is generally formed by splicing a plurality of small screens. refer to Fi...

specific Embodiment 3

[0170] Specific embodiment three, take liquid crystal display screen or cathode display tube display (CRT) screen as touch panel:

[0171] refer to Figure 1 to Figure 9 ,as well as Figure 11 and Figure 12 , the dual-camera touch screen uses the liquid crystal display screen as the touch panel 501 or the cathode display tube display (CRT) screen as the touch panel 501, and uses the protective plate as the touch panel 501. The structure and principle are basically the same.

[0172] The difference: The difference between the LCD screen and the cathode display tube display (CRT) screen relative to the protective plate is that the light transmission between the front and rear sides of the LCD screen and the cathode display tube display (CRT) screen is not good, That is, light does not easily penetrate LCD screens and cathode display tube monitor (CRT) screens. The photosensitive element group 502 and the photosensitive element group 503 are suitably arranged on the side or f...

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PUM

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Abstract

The invention relates to the field of touch screens, in particular to an optical touch screen. A double-camera touch screen comprise a touch panel and a signal processing system and further comprises a light sensor set, wherein the light sensor set comprises multiple light sensors which are connected with the signal processing system. A double-camera touch screen light source comprises a light source, and light rays generated by the light source evenly irradiate on the touch panel which is provided with transparent media on the outer surface and are transmitted towards the outer side of the touch panel. A contact type touch pen comprises a switch and a luminous element, and the switch controls the luminous states of the luminous element. A remote touch pen comprises a laser and a power source and further comprises an outer shell enabling handholding to be convenient, wherein the laser and the power source are arranged in the outer shell, a switch is arranged between the laser and the power source, and the switch is arranged on the outer shell. The double-camera touch screen and the touch pen thereof are strong in anti-interference capability, fearless of oil contamination and suitable for factory workshops, mining areas and other sites with mass oil contamination. The double-camera touch screen and the touch pen thereof can achieve the switching of a remote touch mode and a contact type touch mode easily.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to an optical touch screen. Background technique [0002] Existing touch screens made of optical properties mainly contain two types, one is an infrared touch screen; the other is a touch screen called a laser electronic whiteboard, which is mainly used in projectors, and uses laser tracking technology to scan the surface and touch handwriting. [0003] Existing infrared touch screens include through-beam infrared touch screens and infrared touch screens with optical receiving elements on the back. Compared with other touch screens, infrared touch screen has a series of advantages such as stable performance, strong anti-interference ability, long life and high precision. Almost with an overwhelming advantage, it gradually occupied the market of other touch screens. [0004] But the infrared touch screen still has a fatal weakness that is difficult to overcome, that is, the infrared wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042G06F3/0354
Inventor 李兴文孙倩倩
Owner 嘉善陶庄再生资源有限公司
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