Unlock instant, AI-driven research and patent intelligence for your innovation.

Touch screen

A technology of touch screen and electrode plate, which is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc. It can solve the problems of insufficient durability, poor linearity and accuracy, and insufficient mechanical properties of resistive touch screens. Achieve excellent mechanical properties, uniform resistance distribution, improve resolution and accuracy

Active Publication Date: 2011-03-30
TSINGHUA UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing preparation method of resistive touch screen usually adopts processes such as ion beam sputtering or evaporation to deposit a layer of ITO layer on the upper and lower substrates as a transparent conductive layer. During the preparation process, a higher vacuum environment and heating to 200-300°C, therefore, the manufacturing cost of the touch screen using ITO layer as the transparent conductive layer is relatively high
In addition, as a transparent conductive layer, the ITO layer has disadvantages such as insufficient mechanical properties, difficulty in bending, and uneven resistance distribution.
In addition, the transparency of ITO will gradually decrease in humid air
As a result, existing resistive touch screens and display devices have shortcomings such as insufficient durability, low sensitivity, poor linearity and accuracy.

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 screen
  • Touch screen
  • Touch screen

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] The carbon nanotube film is an ordered carbon nanotube film or a disordered carbon nanotube film, and the carbon nanotube film can be obtained by rolling, flocculation, or directly pulling from the carbon nanotube array. Preferably, in this embodiment, the carbon nanotube film is a carbon nanotube film structure obtained by directly pulling from the carbon nanotube array. The preparation method of the carbon nanotube stretched film structure specifically includes the following steps:

[0040] Firstly, a carbon nanotube array is provided, preferably, the array is a super-aligned carbon nanotube array.

[0041] The carbon nanotube array provided in the embodiment of the technical solution is one or more of a single-wall carbon nanotube array, a double-wall carbon nanotube array, and a multi-wall carbon nanotube array. In this embodiment, the preparation method of the super-parallel carbon nanotube array adopts the chemical vapor deposition method, and its specific steps ...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a touch screen, which comprises a first battery lead plate and a second battery lead plate, wherein the first battery lead plate comprises a first matrix, and a first conducting layer and the first conducting layer is arranged on the lower surface of the first matrix; the second battery lead plate and the first battery lead plate are arranged at intervals, the second battery lead plate comprises a second matrix and a second conducting layer, and the second conducting layer is arranged on the upper surface of the second matrix; and the first conducting layer and the second conducting layer comprise a carbon nanotube composite material layer respectively, and the carbon nanotube composite material layer comprises a carbon nanotube layer and high polymer materials infiltrated into the carbon nanotube layer.

Description

technical field [0001] The invention relates to a touch screen, in particular to a touch screen based on carbon nanotubes. Background technique [0002] In recent years, along with the high performance and diversification of various electronic devices such as mobile phones and touch navigation systems, there has been an increase in the number of electronic devices in which light-transmitting touch panels are mounted on the front of display elements such as liquid crystals. Users of such electronic devices operate by pressing the touch panel with fingers or a pen while visually confirming the display content of the display element located on the back of the touch panel through the touch panel. Thereby, various functions of the electronic device can be operated. [0003] According to different working principles and transmission media of touch screens, existing touch screens are usually divided into four types, namely resistive, capacitive sensing, infrared and surface acoust...

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): G06F3/045C03C17/22
Inventor 姜开利刘亮范守善陈杰良郑嘉雄吴志笙
Owner TSINGHUA UNIV