Manufacturing method of capacitive touch screen

A technology of capacitive touch screen and manufacturing method, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of limited production yield, high production cost, and many manufacturing process steps, and achieve effective Conducive to popularization and application, low production cost and wide application range

Inactive Publication Date: 2016-02-03
ANHUI RUIWO ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the manufacturing process of this yellow light process is complicated, the requirements on the environment and equipment are very high, and the production cost is high; if the circuit design scheme is changed, the mask (Mask) used for lithography also needs to be redesigned and manufactured, which greatly improves The production cost is increased; and there are many step

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] An embodiment of the present invention relates to a manufacturing method of a capacitive touch screen. Provide a panel substrate with a transparent conductive coating. Specifically, the panel substrate can be selected from any of polycarbonate PC panels, polyethylene terephthalate PET panels, and glass GLASS panels. The transparent conductive coating may also be any one of indium tin oxide ITO film, carbon nanotube film or nano silver film. For example, provide a GLASS panel with ITO film, or provide a PET panel with carbon nanotube film. Of course, in practical applications, other materials are also used for the panel substrate or transparent conductive coating, which will not be cited here.

[0024] According to the frame pattern required for the appearance of the touch screen, insulating ink is covered on the panel substrate to form a frame pattern outside the window of the touch screen. Specifically, one method is to completely print or sputter the insulating ink (t...

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PUM

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Abstract

The invention relates to a touch screen technology and discloses a manufacturing method of a capacitive touch screen. The manufacturing method comprises the following steps: according to an edge frame pattern needed by the appearance of the touch screen, covering a panel base material with insulating printing ink to form an edge frame pattern outside a touch screen window; printing a sensor circuit for detecting a touch position on a transparent conductive coating; meanwhile, covering the insulating printing ink and the transparent conductive coating with conductive printing ink; and extending the transparent conductive coating to the back surface of the insulating printing ink, so as to do circuit processing outside the window. The manufacturing process of the capacitive touch screen is relatively simple, the production cost is relatively low and the production efficiency is improved; and actual conditions and large-batch production requirements of middle-scale and small-scale enterprises can be met very well.

Description

technical field [0001] The invention relates to touch screen technology, in particular to a manufacturing method of a capacitive touch screen. Background technique [0002] As a brand-new computer input device, capacitive touch screen is mainly used for man-machine dialogue operations such as information query, industrial control, military command, and multimedia teaching. [0003] At present, the common projected capacitive touch screen on the market generally has a circuit process on the glass substrate: first, apply photoresist on the surface of indium tin oxide glass (ITOGLASS) coated with molybdenum, aluminum and molybdenum, and then cover the unnecessary parts with film. part, after exposure and development, cure the photoresist on the part not covered by the film, remove the photoresist that is not covered by the film and then back-plate molybdenum, aluminum and molybdenum, and finally remove the photoresist that is not covered by the film Resist, after cleaning, lea...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 葛清华
Owner ANHUI RUIWO ELECTRONICS TECH CO LTD
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