Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Infrared expanded light source type multipoint touch system

A technology for expanding light sources and multi-touch, applied in lighting devices, instruments, electrical digital data processing, etc., can solve the problems of high cost, low precision, and inability to realize multi-touch, etc., and achieve low cost and high touch accuracy Effect

Inactive Publication Date: 2011-02-02
NLIGHTEN TRADING SHANGHAI
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the high applicability and advantages of infrared touch screens, the present invention provides an infrared multi-point touch screen to be applied to various electronic products, which will solve some shortcomings of capacitive, resistive, and general infrared touch screens, such as high cost, The problem of low precision or the inability to realize real multi-touch can avoid the problem that the total reflection touch screen has very strict requirements on the screen, thereby improving the usability and application breadth of the touch screen

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
  • Infrared expanded light source type multipoint touch system
  • Infrared expanded light source type multipoint touch system
  • Infrared expanded light source type multipoint touch system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] In order to fully understand the above details and other advantages and objectives of the present invention, a more detailed description will be illustrated by specific embodiments of the present invention. The explicit descriptions herein are only illustrative of various embodiments of the invention. As stated, the specific modifications discussed in this disclosure are not intended to limit the scope of this disclosure. It will be apparent to those skilled in the art that various equivalent changes, changes, and modifications made without departing from the spirit and scope of the present invention should be understood to be included in equivalent embodiments of the present invention.

[0014] The terminology used in this specification should be interpreted in its broadest and reasonable manner, even if it is used to describe some specific embodiments of the present invention.

[0015] Such as figure 1 and figure 2 As shown, the preferred embodiment of the present...

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 provides an infrared expanded light source type multipoint touch system which is an infrared expanded light source type multipoint touch screen capable of realizing single-point or multipoint touch control. The infrared expanded light source type multipoint touch system comprises a display device module, at least one infrared light source, at least one optical device, at least one infrared receiver and a positioning module, wherein the infrared light source is arranged at the position a certain distance from the outer surface of the display device module and used as the light source of the multipoint touch screen; the optical device is used as the beam expanding optical device of the infrared light source to form an infrared planar illuminating beam; the infrared receiver is used for receiving the infrared light emitted by the infrared light source and the infrared light reflected after the touch screen is touched; and the positioning module is used for positioning the touch position according to the touched image received by the infrared receiver, thereby realizing single-point or multipoint touch control.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a technology of an infrared extended light source type touch screen capable of realizing multi-touch positioning. Background technique [0002] In recent years, all kinds of electronic products are constantly moving towards the direction of easy operation, compact size, and large screen size, especially portable electronic products have stricter requirements on volume and screen size. Therefore, many electronic products integrate the touch panel with the liquid crystal display panel, so as to omit the space required for the keyboard or control keys, thereby expanding the configurable area of ​​the screen. [0003] Currently, touch screen technologies mainly include capacitive touch screens, resistive touch screens, optical touch screens, and the like. Among them, optical touch screens are currently more common: (1) Infrared grid touch screen: Invisible light infrared emitt...

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): G06F3/042F21V5/00G02F1/133
Inventor 吴新民李建国马小强郭晴
Owner NLIGHTEN TRADING SHANGHAI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com