Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Mutual capacitance touch screen detection method

A technology of touch screen detection and mutual capacitance, which is applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc., can solve the problems of lower product qualification rate, rough detection method, and inability to screen mutual capacitance touch screens, etc., and achieve the effect of improving the qualification rate

Active Publication Date: 2014-08-20
EELY ECW TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing detection methods are too rough to strictly screen the produced mutual capacitance touch screens, which greatly reduces the qualified rate of the products

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Embodiments of the present invention are described in detail below:

[0014] A mutual capacitance touch screen detection method, select the point to be detected on the touch screen to be detected, retrieve the capacitance value of the point to be detected m, the maximum set value of the capacitance value of the point to be detected is a, the minimum set value is b; The deviation between the capacitance value of the detection point and the capacitance value of the adjacent detection point is n, the maximum setting value of the deviation value is x, and the minimum setting value of the deviation value is y; the capacitance of each detection point in the row where the point to be detected is located is the largest The ratio of the value to the minimum value of the capacitance is k, the maximum setting value of the ratio is u, and the minimum setting value of the ratio is v;

[0015] If the following conditions are met at the same time: a>m>b, x>n>y, u>k>v, it is judged tha...

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 a mutual capacitance touch screen detection method, which comprises the following steps of: selecting a point to be detected on a touch screen to be detected; picking up a capacitance value of the point to be detected as m, wherein the maximum set value and the minimum set value of the capacitance value of the point to be detected are a and b; obtaining a deviation value n of the capacitance value of the point to be detected and the capacitance value of an adjacent detection point, wherein the maximum set value of the deviation value is x and the minimum set value of the deviation value is y; obtaining a ratio of the capacitance maximum value to the capacitance minimum value of each detection point in the row of the point to be detected as k, wherein the maximum set value of the ratio is u and the minimum set value of the ratio is v; if the conditions that m is less than A and is greater than b, n is less than x and is greater than y and k is less than u and is greater than v are met simultaneously, judging that a capacitance touch screen is qualified; and otherwise, judging that the capacitance touch screen is not qualified. According to the mutual capacitance touch screen detection method, the mutual capacitance touch screen can be more accurately detected, and the qualification rate of a product is improved.

Description

technical field [0001] The invention relates to a mutual capacitance touch screen detection method. Background technique [0002] In the manufacturing process of the mutual capacitance touch screen, it is necessary to detect the manufactured mutual capacitance touch screen. Most of the existing methods are to select some points on the touch screen (such as the points on the border line of the touch screen) as the points to be detected. If the capacitance value at the selected point to be detected is within the set range, it is determined that the mutual capacitance touch screen is qualified; otherwise, it is determined that the mutual capacitance touch screen is unqualified. [0003] The existing detection methods are too rough to strictly screen the manufactured mutual capacitance touch screens, which greatly reduces the qualified rate of the products. Contents of the invention [0004] Based on this, the present invention overcomes the defects of the prior art and provi...

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): G01R31/01
Inventor 戴澍达雷艳清
Owner EELY ECW TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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