Supercharge Your Innovation With Domain-Expert AI Agents!

Positioning touch sensor including force measurement

A touch sensor and display technology, applied in the input/output process of instruments, data processing, calculation, etc., can solve the problems of blurred, unsuitable, and limited visibility of the display

Inactive Publication Date: 2017-01-18
3M INNOVATIVE PROPERTIES CO
View PDF29 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these touchscreen display sensors that measure touch force are limited by a few disadvantages
These disadvantages include: transparent conductive elements (such as those based on indium tin oxide) that tend to fracture when strained; conspicuous sensing elements that are not suitable for intervening with the device user because they can substantially obscure the visibility of the display; and information displays; and bulky force measurement components that can result in undesired device or frame thickness or other large device dimensions

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
  • Positioning touch sensor including force measurement
  • Positioning touch sensor including force measurement
  • Positioning touch sensor including force measurement

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0079] Example 1 - Formation of a Display with a Touch Sensor with Piezoresistive Pressure Responsive Material

[0080] The first and second patterned substrates prepared above were used to produce a two-layer force-sensing touch sensor comprising a piezoresistive pressure-responsive material. A pressure-responsive material is disposed between the first and second patterned substrates, with the patterned surface of each substrate (having a micropattern of conductive traces) facing the pressure-responsive material. The pressure responsive material is a composite of transparent conductive particles dispersed in a matrix. A film derived from conductive ITO ink in Example 1 of US Patent No. 5,763,091 (Kawata et al.) was used as the pressure responsive material. The film can be coated onto the micropattern of conductive traces of the first patterned substrate. The film is selectively coated onto the substrate surface to cover the first band and the first discontinuous region, b...

example 2

[0082] Example 2 - Formation of Displays with Touch Sensors with Piezoresistive Pressure Responsive Materials .

[0083] The first and second patterned substrates prepared above can be used to produce a two-layer force-sensing touch sensor comprising a piezoresistive pressure-responsive material. A pressure responsive material may be disposed between the first and second patterned substrates, with the patterned surface of each substrate (with the micropattern of conductive traces) facing the pressure responsive material. The pressure-responsive material is a multi-layer sequentially formed of the following material components: i) a first conductive polymer layer; ii) a composite layer of transparent conductive particles dispersed in a matrix; and iii) a second conductive polymer layer. The first conductive polymer layer and the second conductive polymer layer have the same composition and thickness. A film derived from a conductive ITO ink in Example 1 of US Patent No. 5,76...

example 3

[0085] Example 3 - Formation of Displays with Touch Sensors with Piezoresistive Pressure Responsive Materials .

[0086]The first and second patterned substrates prepared above can be used to produce a two-layer force-sensing touch sensor comprising a piezoresistive pressure-responsive material. The pressure-responsive material is included in a multilayer sequentially formed of the following material components: i) a first transparent conductive adhesive layer; ii) a piezoresistive layer; and iii) a second transparent conductive adhesive layer. Banded regions of the first and second patterned substrates are first printed with a transparent conductive adhesive material to form first and second transparent conductive adhesive layers. A transparent conductive adhesive material was prepared according to Example 24 of US Patent Publication No. 2003 / 0114560 (Yang et al.). The transparent conductive adhesive material is printed using inkjet printing, as is known in the art. A non...

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

PropertyMeasurementUnit
widthaaaaaaaaaa
widthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention provides a touch screen display sensor, which includes a transparent touch-sensing element disposed on the surface of a transparent substrate and a force-sensing element disposed in the transparent touch-sensing element. The force sensing element includes two sets of micromesh strips and may include a pressure responsive material between the micromesh strips. The micromesh strip includes metal conductor traces. The sets of micromesh strips are spaced apart and occupy substantially parallel planes.

Description

technical field [0001] A touch sensor that can measure applied force and that can be used on an electronic display is provided. Background technique [0002] Positioning touchscreen sensors detect the location of an object, such as a finger or stylus, applied to or near the touchscreen display surface. These sensors detect the position of objects along the display surface (that is, within the plane of the flat, rectangular display). Examples of positioning touch screen sensors include capacitive sensors, resistive sensors, and projected capacitive sensors. The sensor includes a transparent conductive element covering the display. The conductive elements may be used in conjunction with electronics that use electrical signals to detect the conductive elements in order to determine the location of objects near or in contact with the display. [0003] In addition to position sensing, it is often useful for user input devices such as touch screen displays (eg, computer user in...

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 Patents(China)
IPC IPC(8): G06F3/041
CPCG06F2203/04112G06F3/04144G06F3/0447Y10T29/49105G06F3/0412G06F3/0414G06F3/044H01H65/00
Inventor 马修·H·弗雷罗伯特·R·基施克比利·L·韦弗
Owner 3M INNOVATIVE PROPERTIES CO
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com