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Multipoint touch screen and driving method thereof

A technology of multi-point touch screen and driving method, 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 small number of touch points, complex structure and drive of multi-point touch screen, etc., and improve the conductivity Performance, good light penetration, effect of simple structure

Active Publication Date: 2012-07-25
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of complex structure and driving of multi-point touch screens in the prior art, and a small number of simultaneous touch points, it is necessary to provide a multi-point touch screen with simple structure and drive, and which can simultaneously operate multiple touch points

Method used

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  • Multipoint touch screen and driving method thereof
  • Multipoint touch screen and driving method thereof
  • Multipoint touch screen and driving method thereof

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Embodiment Construction

[0020] see figure 1 , which is a schematic cross-sectional structure diagram of the first embodiment of the multi-point touch screen of the present invention. The multi-touch screen 20 includes a first substrate 21 and a second substrate 22 oppositely disposed. The first substrate 21 is generally made of elastic transparent material, and the second substrate 22 is made of rigid transparent material to bear a certain pressure. In this embodiment, the first substrate 21 is a polyester film, and the second substrate 22 is a glass substrate. A first conductive layer 23 is disposed on a surface of the first substrate 21 opposite to the second substrate 22 . A second conductive layer 24 is disposed on a surface of the second substrate 22 opposite to the first substrate 21 . An adhesive layer 25 is disposed at the edge between the first substrate 21 and the second substrate 22 to bond the first substrate 21 and the second substrate 22 together. The distance between the first cond...

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Abstract

The invention provides a multipoint touch screen which comprises a first baseplate, a second baseplate, a first transparent conducting layer and a second transparent conducting layer, wherein the first baseplate and the second baseplate are oppositely arranged, the first transparent conducting layer is arranged on the inner surface of the first baseplate, and the second transparent conducting layer is arranged on the inner surface of the second baseplate. The resistivity of the second transparent conducting layer along a first direction is larger than the resistivity thereof along a second direction. The second transparent conducting layer is a carbon nanotube film, furthermore, carbon nanotubes in the carbon nanotube film are preferentially oriented and arranged along a single direction,and the single direction is parallel to the second direction of the second transparent conducting layer. The invention also provides a driving method of the multipoint touch screen.

Description

technical field [0001] The invention relates to a multi-point touch screen and a driving method of the multi-point touch screen. Background technique [0002] In recent years, with the development of high performance and diversification of various electronic devices such as mobile phones and touch navigation systems, electronic devices equipped with touch screens have gradually increased. Such an electronic device allows the user to directly touch the touch screen with hands or other objects to input information to the electronic device, which can reduce or eliminate the user's dependence on other input devices (such as keyboards, mice, remote controls, etc.), which is convenient for users. operation. [0003] The touch screens in the prior art mainly include resistive, capacitive, infrared and surface acoustic wave types. Generally, a touch screen can only input one touch action at a time during use. Recently, a multi-point touch screen that can simultaneously input two o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/033
Inventor 郑嘉雄吴志笙赵志涵
Owner INNOCOM TECH (SHENZHEN) CO LTD
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