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

A touch control substrate, a display device and a driving method thereof

A technology of touch position and touch, which is applied in the directions of instruments, calculations, electrical digital data processing, etc., which can solve the problems of large assembly tolerance and limitation of detection accuracy, and achieve the effect of eliminating parasitic capacitance

Active Publication Date: 2020-03-31
BOE TECH GRP CO LTD +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the way to achieve pressure sensing in the display field, especially in the field of mobile phones or tablets, is to add an additional mechanism to the backlight part of the LCD panel or the middle frame of the mobile phone. This design requires structural design of the LCD panel or mobile phone. changes, and the probing accuracy of this design is limited due to large assembly tolerances

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 control substrate, a display device and a driving method thereof
  • A touch control substrate, a display device and a driving method thereof
  • A touch control substrate, a display device and a driving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The specific implementation manners of the touch substrate, the display device and the driving method thereof provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] The thickness and shape of each film layer in the drawings do not reflect the real scale, and the purpose is only to illustrate the content of the present invention.

[0030] A touch substrate provided by an embodiment of the present invention, such as figure 1 As shown, it includes a base substrate 01, and a touch detection electrode 02 disposed on the base substrate 01, and also includes:

[0031] The touch pressure driving electrode 03 and the touch pressure sensing electrode 04 that form a mutual capacitance structure are disposed between the film layer where the touch detection electrode 02 is located and the base substrate 01;

[0032] During the touch detection period, the touch detection signal is applied to the to...

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 touch control substrate, a display device and a driving method thereof. In the touch control substrate, a touch pressure drive electrode and a touch pressure drive electrode which form a mutual capacitance structure and are arranged between the film layer where the touch detection electrode is located and the base substrate are added. For the touch pressure sensing electrode, when the touch substrate is pressed, the distance between the touch substrate and the underlying metal layer becomes smaller, which leads to a corresponding decrease in the capacitance value of the mutual capacitance structure. Therefore, during the pressure detection period, by applying the touch driving signal to the touch pressure driving electrode and detecting the change of the signal amount of the touch pressure sensing electrode caused by the pressure of the touch position, the capacitance value change of the mutual capacitance structure can be determined. volume, so as to realize the pressure sensing function. During the touch detection period, the same touch detection signal is applied to the touch detection electrodes, touch pressure drive electrodes and touch pressure sensing electrodes at the same time, and the touch position is determined by detecting the capacitance value change of each touch detection electrode. Realize the two-dimensional detection function of touch.

Description

technical field [0001] The present invention relates to the technical field of touch display, in particular to a touch substrate, a display device and a driving method thereof. Background technique [0002] Pressure sensing technology refers to the technology that can detect external force. This technology has been used in industrial control, medical and other fields a long time ago. At present, the way to achieve pressure sensing in the display field, especially in the field of mobile phones or tablets, is to add an additional mechanism to the backlight part of the LCD panel or the middle frame of the mobile phone. This design requires structural design of the LCD panel or mobile phone. changes, and the probing accuracy of this design is limited due to large assembly tolerances. [0003] Therefore, how to realize the pressure sensing with high detection accuracy with little modification of the display panel hardware is an urgent problem to be solved by those skilled in the...

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): G06F3/041G06F3/044
CPCG06F2203/04107G02F1/13338G06F2203/04105G06F3/04166G06F3/0445G06F3/0443G02F1/13629G02F1/134309G02F1/136286G02F2201/121G06F3/047G06F2203/04103
Inventor 丁小梁董学王海生陈小川刘英明杨盛际赵卫杰刘伟李昌峰王鹏鹏任涛刘红娟
Owner BOE TECH GRP 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