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

A touch screen calibration method and system

A calibration method and calibration system technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of calibration methods without optical sensor conversion parameters, failure to recover through calibration, and decreased accuracy, etc., to achieve High precision, strong adaptability, correcting the effect of accuracy deterioration

Active Publication Date: 2018-06-19
TIANJIN XITONG ELECTRONICS EQUIP CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The calibration method uses touch and lift as mark points. It is difficult to touch the best position in an instant when manually collecting touch points, and it needs to be moved
Ordinary sampling points do not consider this problem, resulting in a decrease in accuracy
[0005] (2) The existing calibration methods do not have fast and easy-to-use optical sensor conversion parameters, and cannot be calibrated under the condition that the position of the optical sensor changes. After long-distance transportation or falling, the accuracy drop caused by small changes in the structure cannot be recovered through calibration
When the production place and the place of use are far away, the changes in thermal expansion and contraction of the structure caused by different climates will also cause the decrease in accuracy and cannot be recovered.

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
  • A touch screen calibration method and system
  • A touch screen calibration method and system
  • A touch screen calibration method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0084] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0085] Refer below Figure 1 to Figure 3 The method for calibrating the touch screen according to the embodiment of the present invention will be described. Among them, the touch screen can be an optical touch screen, which can convert the position or displacement of components into a code form through photoelectricity, and is an input device or an input and output combination device for interaction between a user and a computer. The touch screen calibration method of the present invention can be used to calibrate the touch scre...

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 a touch screen calibrating method which comprises the steps of switching the work state of a touch screen from the normal touch mode to the calibration mode, conducting regular calibration or deep calibration on a touch spot according to the touch precision change of the touch screen, and switching the work state of the touch screen from the calibration mode to the normal touch mode after the regular calibration or deep calibration is finished. The invention further discloses a touch screen calibrating system. According to the touch screen calibrating method and system, precision deterioration of the touch screen caused by transportation damage or using environment difference can be effectively amended, adaptive capacity is good, and manual operation errors can be removed effectively to realize higher precision.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a calibration method and system for a touch screen. Background technique [0002] Since the touch screen and the display screen are not completely fixed and overlapped, the conversion relationship from the physical coordinates of the touch screen to the pixel coordinates of the display screen is not fixed. It is necessary to obtain the conversion relationship between them in order to make the touch point and the display point coincide accurately. This process is the calibration process of the touch screen. At the same time, the physical coordinates come from the information of the optical sensor, so precise conversion parameters of the optical sensor are required to ensure the accuracy of the physical coordinates of the touch screen. [0003] The existing touch screen calibration method has the following defects: [0004] (1) The calibration method uses touch and lift as...

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): G06F3/042
Inventor 买强王炜张霞施飞李洲强
Owner TIANJIN XITONG ELECTRONICS EQUIP CO LTD
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