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Projection type capacitance touch screen and preparation method thereof

A capacitive touch screen, projection technology, applied in the fields of electrical digital data processing, optics, instruments, etc., can solve the problems of inability to balance the manufacturing cost and the mechanical strength of the protective lens, and reduce the thickness, so as to increase the manufacturing cost, reduce the thickness, and increase the mechanical strength. the effect of strength

Inactive Publication Date: 2012-11-14
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Embodiments of the present invention provide a projected capacitive touch screen and its preparation method, which solves the problem that the manufacturing cost and the mechanical strength of the protective lens cannot be balanced after the thickness of the existing projected capacitive touch screen is reduced

Method used

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  • Projection type capacitance touch screen and preparation method thereof
  • Projection type capacitance touch screen and preparation method thereof
  • Projection type capacitance touch screen and preparation method thereof

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] An embodiment of the present invention provides a projected capacitive touch screen, such as figure 2 As shown, the projected capacitive touch screen includes from bottom to top (X direction): a liquid crystal display device 21, a sensing component 22, a bonding layer 23 and a protective lens 24; the sensing component 22 consists of an upper polarizer 221, a second A direction sensing electrode 222 and a second direction sensing electrode 223 are stacked; a...

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PUM

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Abstract

An embodiment of the invention provides a projection type capacitance touch screen and a preparation method thereof and relates to an input device for interacting between man and machine. By means of the projection type capacitance touch screen and the preparation method, the problem that when the thickness of the existing projection type capacitance touch screen is reduced, the manufacture cost and the mechanical strength of a protective lens cannot be coordinated is solved. A sensing assembly is formed by laminating a sensing electrode and a polaroid, so that base materials used in the existing sensing assembly are saved, and the sensing electrode does not need to be formed on the protective lens. Therefore, the thickness of the touch screen is reduced, the protective lens can be manufactured according to the existing manufacture processes, the manufacture cost cannot be increased, the protective lens can be ensured to have high mechanical strength, and the aim that the manufacture cost and the mechanical strength of the protective lens are coordinated when the thickness of the projection type capacitance touch screen is reduced can be achieved.

Description

technical field [0001] The invention relates to an input device for human-machine interaction, in particular to a projected capacitive touch screen and a preparation method thereof. Background technique [0002] Existing touch screens are roughly classified into resistive, capacitive, infrared and other types. Since the capacitive touch screen has the advantages of fast response time, good reliability and high durability, it is widely used in electronic products. In the capacitive touch screen, since the projected capacitive touch screen can realize multi-point and accurate coordinate sensing, and has a simple structure, it has become the mainstream direction of the current development of display touch technology. [0003] Figure 1a A structure of an existing projected capacitive touch screen is shown, which includes from bottom to top: a liquid crystal display (Liquid Crystal Device, LCD for short) 1, an upper polarizer 2, and a first direction sensing electrode 3 , a ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F2203/04103G06F3/044G06F3/0412G06F2203/04107G06F3/0445G06F3/0446Y10T29/49117G02F1/13338G02F2202/28G06F2203/04106
Inventor 尹航
Owner HUAWEI DEVICE CO LTD