Two-point detection method and equipment for resistive touch screen

A touch screen and resistive technology, applied in the field of multi-point detection of resistive touch screens, can solve the problems of high price and high cost of capacitive touch screens, and achieve the effect of solving the inability of multi-point detection

Active Publication Date: 2011-04-27
芯鑫融资租赁(厦门)有限责任公司
View PDF1 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although some capacitive touch screens can achieve multi-point detection, the cost of capacitive touch screens is high, and their prices are more expensive than resistive touch screens

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
  • Two-point detection method and equipment for resistive touch screen
  • Two-point detection method and equipment for resistive touch screen
  • Two-point detection method and equipment for resistive touch screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0023] The first embodiment of the present invention relates to a two-point detection method of a resistive touch screen, the specific process is as follows figure 2 shown.

[0024] In step 210, calculate the terminal voltage V of the series resistor when the electric field is applied to the y-axis and x-axis respectively ADC1_0 , V ADC1_1 , V...

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 touch screen technique and discloses a two-point detection method and two-point detection equipment for a resistive touch screen. The two-point detection method comprises the following steps of: measuring voltage values VADC1_0, VADC1_1, VADC2_0 and VADC2_1 at the series resistor end by using series resistors; and if a difference value delta Vy of the VADC1_1 and the VADC1_0 is more than or equal to VTy which is a first preset threshold, or if a difference value delta Vx of the VADC2_1 and the VADC2_0 is more than or equal to VTx which is a second preset threshold, detecting that two points are pressed down, so that the problem that the resistive touch screen cannot perform multi-point detection is solved and the application to software operation can be enriched.

Description

technical field [0001] The invention relates to touch screen technology, in particular to multi-point detection technology of resistive touch screen. Background technique [0002] With the continuous development of science and technology, touch screens have been widely used in our daily life. For the technology of touch screens, please refer to US Patent No. 6072475. At present, there are several types of touch screens, namely: resistive, capacitive (surface capacitive and inductive capacitive), surface acoustic wave, infrared, bending wave, active digital converter and optical imaging. Among them, the resistive touch screen is controlled by using pressure sensing. Capacitive touchscreens work by utilizing the human body's current sensing. The infrared touch screen uses the dense infrared matrix in the X and Y directions to detect and locate the user's touch. Surface acoustic wave is a kind of ultrasonic wave, a mechanical energy wave that propagates shallowly on the surf...

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
IPC IPC(8): G06F3/045
Inventor 梁旺平薛飞
Owner 芯鑫融资租赁(厦门)有限责任公司
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap