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

Touch display screen and display device

A technology of touch display screen and touch wiring, which is applied in the directions of instruments, computing, electrical digital data processing, etc., which can solve the problems of uneven display and achieve the effect of ensuring uniformity

Pending Publication Date: 2021-10-12
BOE TECH GRP CO LTD +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a touch display screen and a display device to solve the problem of uneven display in the prior art

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
  • Touch display screen and display device
  • Touch display screen and display device
  • Touch display screen and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] At present, in-cell touch screens are widely used in small-sized fields such as mobile phones and smart watches, but when the existing in-cell touch screens are applied to large-size display products, such as 12.3-inch For the car display screen, etc., we found that the problem of uneven picture will appear when displaying, and in severe cases, there will be bad problems such as small squares and horizontal stripes. Through research, it is found that this is mainly due to the fact that different self-capacitance electrodes are connected to the driver chip through different wires. When displaying, the RC loading of different self-capacitance electrodes is different.

[0037] Based on this, the embodiments of the present invention provide a touch display screen and a display device, which are used to solve the problem of uneven display in the prior art.

[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, the p...

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 display screen and a display device. A common electrode layer is divided into a plurality of mutually independent self-capacitance electrodes, and the self-capacitance electrodes are connected to a driving chip through corresponding touch wires; the touch display screen further comprises a common voltage line, switch transistors correspondingly connected with the self-capacitance electrodes, and control lines connected with grid electrodes of the switch transistors. When the touch display screen is used for displaying, all the switch transistors are controlled to be switched on, so that all the self-capacitance electrodes are connected in series to form a whole, and public voltage signals are provided for the public voltage line and all the touch wires, so that the public voltage signals on different self-capacitance electrodes are consistent, and the display uniformity is ensured. When the touch display screen performs touch control, the switch transistors are controlled to be switched off, the self-capacitance electrodes are prevented from being independent from one another, touch control driving signals are provided for the touch control wires, and the capacitance value change of the self-capacitance electrodes is detected through the touch control wires so as to judge the touch control position.

Description

technical field [0001] The invention relates to the technical field of touch display, in particular to a touch display screen and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread in people's lives. Currently, touch panels can be classified into: Add on Mode Touch Panel, On Cell Touch Panel, and In Cell Touch Panel according to their composition and structure. Among them, the plug-in touch screen is produced separately from the touch screen and Liquid Crystal Display (LCD), and then bonded together to form a liquid crystal display with touch function. The plug-in touch screen has high production costs and low light transmittance. Low, thick modules and other shortcomings. The embedded touch screen embeds the touch electrodes of the touch screen inside the liquid crystal display, which can reduce the overall thickness of the module and greatly reduce the productio...

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): G06F3/041G06F3/044
CPCG06F3/0412G06F3/044G06F3/04164G06F3/0443G06F3/04166G06F3/0446
Inventor 赵铁磊于洁李鹏涛尹大根马青韩锐崔栋张阳阳
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