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

Scan method for capacitive touch panel

A technology of capacitive touch and scanning method, which is applied in the field of capacitive touch panel scanning, can solve problems such as touch response delay, and achieve the effect of high accuracy and high induction frame generation rate

Inactive Publication Date: 2013-08-21
ELAN MICROELECTRONICS CORPORATION
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the point of view of the user's operation, when actually operating the capacitive touch panel, they will feel the discomfort of sluggish touch response

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
  • Scan method for capacitive touch panel
  • Scan method for capacitive touch panel
  • Scan method for capacitive touch panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention is a method that can increase the generation rate of the sensing frame of the capacitive touch panel, regardless of the self-capacitance scanning (self scan) or the mutual-capacitance scanning (mutual scan) method is applicable, through the method proposed by the present invention , the frame rate of the sensing frame of the touch panel can be effectively improved.

[0030] Please refer to figure 1 Shown, method of the present invention comprises:

[0031] Carrying out a first number estimation scan of the sensing lines of the capacitive touch panel, and recording the estimation scan result S10;

[0032] Marking the sensing line is to mark the sensing line meeting the marking condition according to the result of the estimated scan S11;

[0033] A second number of actual scans is performed on the marked sensing line, wherein the second number is greater than the first number S12.

[0034] Based on the implementation methods described in the fore...

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 relates to a scan method for a capacitive touch panel. A scan method for a capacitive touch panel has steps of performing a relatively small first number of estimation scans on multiple sensing lines of a capacitive touch panel and recording results of the estimation scans, marking the sensing lines meeting a predetermined condition according to the results of the estimation scans, and performing a relatively large second number of practical scans on the marked sensing lines. Given the first-stage estimation scans and the second-stage practical scans, the sensing lines possibly touched by a touch object can be rapidly identified and marked, and the second-stage practical scans are performed on the marked sensing lines. Accordingly, noises and errors can be effectively reduced, accurate scan can be ensured, and higher frame rate can be achieved.

Description

technical field [0001] The invention relates to a scanning method of a capacitive touch panel, in particular to a scanning method of a capacitive touch panel capable of suppressing noise and increasing the frame rate of a sensing frame. Background technique [0002] Capacitive touch panels can be broadly classified into mutual scan and self scan according to their signal detection methods. Please refer to Figure 10 , the self-capacitance scanning is to scan the first axial sensing line first, and then scan the second axial sensing line, for example, first scan the Y axial sensing line Y 1 ~Y n Scanning and then the X-axis induction line X 1 ~X m Scan, or scan the X-axis induction line X first 1 ~X m Then for the Y-axis induction line Y 1 ~Y n For scanning, when scanning each sensing line, a driving signal is applied to it and then the same sensing line is sensed. [0003] The method of mutual capacitance scanning is to apply a driving signal to the first axis sensin...

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): G06F3/044
CPCG06F3/0418G06F3/041661G06F3/0446
Inventor 吴珈穆洪泽伦陈顺益吕金城陈政裕
Owner ELAN MICROELECTRONICS CORPORATION
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