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Optical touch panel, touch display device and touch input method thereof

A touch panel and optical technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of increased process complexity and increased production cost, and achieve reduction of production cost and process complexity degree of effect

Active Publication Date: 2012-07-04
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the increase in the number of light source generators and light receivers represents an increase in manufacturing costs and an increase in process complexity.

Method used

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  • Optical touch panel, touch display device and touch input method thereof
  • Optical touch panel, touch display device and touch input method thereof
  • Optical touch panel, touch display device and touch input method thereof

Examples

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Embodiment Construction

[0039] In order to enable those skilled in the art of the present invention to further understand the present invention, preferred embodiments of the present invention are enumerated below, together with the accompanying drawings, to describe in detail the composition and desired effects of the present invention.

[0040] Please refer to figure 2 . figure 2 A schematic diagram of an optical touch panel in a preferred embodiment of the present invention when no touch input is performed is shown. like figure 2As shown, the optical touch panel 30 of this embodiment includes a substrate 32 , a single surface light source generator 34 , at least one retro reflector 36 , a single light sensing array 38 , and a signal processing unit 40 . The substrate 32 has a surface 321 . The single surface light source generator 34 is disposed outside the surface 321 of the substrate 32 for generating a surface light source 341 , wherein the irradiation range of the surface light source 341...

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Abstract

The invention discloses an optical touch panel, a touch display device and a touch input method thereof. The optical touch panel comprises a substrate, a single surface light source generator, a retro-reflection element and a single optical sensing array, wherein the substrate is provided with a surface; the single surface light source generator is arranged outside the surface of the substrate and is used for generating a surface light source, wherein the radiation range of the surface light source covers the range of the surface of the substrate; the retro-reflection element is arranged at the side of the substrate and is used for reflecting the surface light source; and the single optical sensing array is arranged outside the surface of the substrate, is used for sensing the reflected surface light source and generates reflection light distribution information. The optical touch panel and the touch display device can fulfill a function of touch input by only needing to arrange the single surface light source generator and the single optical sensing array, and therefore, the manufacture cost and the process complexity of the optical touch panel can be dramatically lowered.

Description

technical field [0001] The present invention relates to a touch display device with an optical touch panel and a touch input method thereof, especially to an optical touch panel using only a single surface light source generator and a single light sensing array and including the above-mentioned A touch display device of an optical touch panel and a touch input method thereof. Background technique [0002] In today's various types of consumer electronic products, portable electronic products such as tablet computers, personal digital assistants (PDAs), mobile phones (mobile phones) and satellite navigation systems (GPS) have widely used touch panels. , as a communication interface for man-machine data, thereby saving the volume of electronic products. [0003] Generally speaking, according to different touch input mechanisms, touch panels can be mainly divided into three categories: resistive touch panels, capacitive touch panels, and optical touch panels. The advantages of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042
Inventor 庄幸蓉范富诚胡家玮
Owner AU OPTRONICS CORP
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