Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical touch-control device and operation method thereof

A touch device, optical technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve complex calculation problems such as accurate positioning of frame reflection strips

Inactive Publication Date: 2010-10-20
RAYDIUM SEMICON
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can increase the resolution of touch input and reduce the number of light source transmitters and light receivers, it also brings problems such as complicated calculations and precise positioning of the frame reflection strips, which need to be overcome urgently

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical touch-control device and operation method thereof
  • Optical touch-control device and operation method thereof
  • Optical touch-control device and operation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069] The invention provides an optical touch device and its operation method. Since the optical touch device can realize high-resolution touch point detection only through simple optical elements such as light guides and photoelectric sensors, it does not need to set a large number of light source emitters and light receivers, nor The triangulation measurement method needs to be used for complex calculations, so the detection efficiency of the touch point can be effectively improved and the production cost can be greatly saved.

[0070] The first specific embodiment according to the present invention is an optical touch device. In this embodiment, the optical touch device can be applied to a liquid crystal display device or other display devices, and has functions of displaying images and touch input at the same time. Please refer to figure 1 and figure 2 , figure 1 and figure 2 A functional block diagram and a schematic diagram of the optical touch device are respect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an optical touch-control device and an operation method thereof. The optical touch-control device comprises an optical module, an optical sensing module and a processing module, wherein the optical module and the optical sensing module are separately arranged on the first side of the surface of the optical touch-control device and the second side opposite to the first side; the optical module receives the light of a light source and emits a plurality of streams of light evenly; when at least one stream of lights above the surface is prevented by an object, the optical sensing module generates a sensing result according to the reception condition of the streams of light; and the processing module judges the position of the contact point of the object on the surface according to the sensing result.

Description

technical field [0001] The invention relates to a touch device, in particular to an optical touch device capable of simply detecting touch points through a light guide and a photoelectric sensor and an operating method thereof. Background technique [0002] In recent years, with the continuous development of image display related technologies, various new types of display devices appearing on the market gradually replace traditional cathode ray tube (Cathode Ray Tube, CRT) displays. Among them, the touch-type liquid crystal display device not only saves power and does not take up space, but also has the advantage of being able to input directly through contact, so it is widely loved by ordinary consumers and has become the mainstream in the display market and is widely used. In various electronic products, such as automatic teller machines, point-of-sale terminals, visitor guidance systems or industrial control systems, etc. [0003] Generally speaking, currently common tou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
Inventor 颜孟新王威周忠诚
Owner RAYDIUM SEMICON