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Optical touch screen device

An optical touch screen and optical pulse technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the problem of unsatisfactory display effect, see the display clearly, reduce the contrast, etc., to achieve Effects of improved longevity and readability, improved touch resolution

Active Publication Date: 2013-09-18
惠州市德赛威特显示系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the intensity of ambient light increases, the display effect of this display is not so satisfactory, because the strong ambient light increases the brightness of melanin and reduces the contrast, which is also impossible to see in direct sunlight. The reason for clearing the text on the display

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0014] Figure 1-Figure 4 A schematic diagram of an e-paper touch display in reflective mode. figure 1 Among them, the touch end of the finger stick is a square, and the side surface of the square is parallel to the side wall of the display screen; figure 2 and 3 Among them, the touch end of the finger stick is a square, and the side surface of the square is not parallel to the side wall of the display screen; Figure 4 Among them, the touch end of the finger stick is a cylinder.

[0015] The figure includes a display screen 3, a plurality of optical pulse emitting units 4 (indicated by circle symbols) and a plurality of optical pulse receiving units 5 (indicated by triangular symbols). The display screen 3 is a rectangular electronic paper display screen, and the light pulse emitting units 4A-4R and the light pulse receiving un...

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PUM

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Abstract

The invention provides an optical touch screen device which comprises a display screen, a plurality of light pulse transmitting units and a plurality of light pulse receiving units, wherein the plurality of light pulse transmitting units and the plurality of light pulse receiving units are alternately arranged at the periphery of the display screen; when a pointer with a reflecting surface is close to certain position of the display screen, a light transmitted by an light pulse transmitting unit is reflected back to an light pulse receiving unit adjacent to the light pulse transmitting unit, and the optical touch screen device determines the coordinates of the position according to the coordinates of the light pulse receiving unit. By using the optical touch screen device disclosed by the invention, the service life and readability of display equipment are significantly enhanced, and the touch resolution of the touch screen is increased.

Description

technical field [0001] The invention relates to an optical touch screen device. Background technique [0002] For the convenience of operation, people use touch liquid crystal display instead of mouse or keyboard. When working, we must first touch the touch liquid crystal display installed on the front of the display with fingers or other objects, and then the system locates and selects information input according to the icon or menu position touched by the finger. According to the working principle of the touch LCD and the medium for transmitting information, the touch LCD is divided into four types, namely resistive, capacitive sensing, infrared and surface acoustic wave. [0003] However, touch screens using acoustics and other material science technologies have their insurmountable barriers, such as damage and aging of a single sensor, fear of contamination of the touch interface, destructive use, and complicated maintenance. The infrared touch screen also has the disa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042
Inventor 曹堪宇李昂翟振宇姜亦春洪鹏谊
Owner 惠州市德赛威特显示系统有限公司
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