Method for manufacturing resistance-type touch screen and resistance-type touch screen

A touch screen, resistive technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of difficult process, etc., achieve the effect of thin thickness, reduce production cost, and save man-hours

Inactive Publication Date: 2012-06-27

HANGZHOU AMPHENOL PHOENIX TELECOM PARTS

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AI-Extracted Technical Summary

Problems solved by technology

The ITO glass of the upper electrode is relatively ...

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Method used

2. See parts (2) and (3) of FIG. 2 , the first insulating film 10 is printed outside the touch operation area 302 of the conductive optical film, wherein a vacancy 303 is reserved at the position of the electrode, The first insulating film plays the role of insulation, shielding and decoration;

4, see the (5) part of Fig. 2, print the second conductive ink, the second con...

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Abstract

The invention provides a method for manufacturing a resistance-type touch screen. The method comprises the following steps of: preparing a conductive optical film; and preparing conductive glass. The invention also provides the resistance-type touch screen which is manufactured by using the method. The resistance-type touch screen consists of the conductive optical film and the conductive glass, wherein the conductive optical film and the conductive glass are bonded by using a double-sided adhesive tape. By adoption of the method provided by the invention, production flow is simplified, yield is improved, and labor time is saved, so that the aim of reducing production cost is fulfilled. The resistance-type touch screen has a two-layer structure and a decoration effect, the conductive optical film serves as an upper electrode, and the conductive glass serves as a lower electrode and a supporting plate. By adoption of the method provided by the invention, the conductive optical film has a conductivity function and the appearance of a decoration part, and can be colorful according to an appearance requirement, so that the conventional decoration parts which are required to be individually arranged are eliminated.

Application Domain

Input/output processes for data processing

Technology Topic

EngineeringOptical film +2

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Examples

Experimental program(1)

Example Embodiment

[0041] Refer to the attached drawings. The method for preparing a resistive touch screen provided by the present invention includes a preparation step of a conductive optical film and a preparation step of conductive glass;

[0042] The preparation steps of the conductive optical film include:

[0043] 1. See figure 2 In part (1), the raw conductive optical film 301 is partially etched to obtain the required conductive touch operation area 302; the etching methods include laser etching and acid etching. From figure 2 It can be seen in part (1) of the material conductive optical film 301 that a total of 4 electro-optical film units adapted to the touch screen are accommodated (according to the actual situation, the number of typesetting accommodation can be selected other numbers), the following steps are described in the appropriate The preparation process of electro-optical film and conductive glass equipped with a touch screen unit is described.

[0044] 2. See figure 2 Part (2) and (3) of the first insulating film 10 is printed outside the touch operation area 302 of the conductive optical film, wherein a space 303 is left at the position of the electrode, and the first insulating film serves The role of insulation, shielding and decoration;

[0045] Further, the first insulating film 10 also leaves a space 304 where the identification pattern is located. After the first insulating film is printed, a film 11 representing the identification pattern is also printed in the space where the identification pattern is located. . Whether the film 11 is conductive or not is not limited. Although the logo pattern serves as a logo, such as a LOGO pattern and/or text, in the present invention, the logo group can also be understood as a decoration at the same time. The logo pattern can also be understood as a decorative pattern in the present invention.

[0046] The first insulating film 10 and the film 11 can be printed with insulating ink. After the insulating ink for printing the first insulating film 10 is dried, the insulating ink for the film 11 is printed. The insulating ink for printing the first insulating film 10 and the film 11 is Color ink, with pigment, even if it is black, it is understood as one of the colors. Of course, the ink of the printing film 11 may also be a colored conductive ink.

[0047] In actual production, in order to ensure that no white defects occur between the first insulating film 10 and the film 11, the area of the film 11 is larger than the void 304, and a part of the film 11 covers the first insulating film 10 around the void 304 Above, this printing method also exists in the following printing of different films that produce boundaries.

[0048] 3. See figure 2 In part (4), the conductive ink for the electrode is printed on the vacancy 303 where the electrode is located, the conductive ink for the electrode forms the electrode, and the conductive ink for the electrode is configured with a pigment to make the formed first A conductive film 9 also functions as a shield and cooperates with the first insulating film 10 to form a decoration;

[0049] The conductive ink for the electrode adopts an ink formulated with carbon paste or conductive silver paste and is equipped with pigments. It is a colored conductive ink. Similarly, even if it is black, it is understood as one of the colors. In actual production, in order to ensure that no white defect occurs between the first insulating film 10 and the first conductive film 9, therefore, the area of the first conductive film 9 is larger than the vacancy 303, and a part of the first conductive film 9 covers On the first insulating film 10 around the vacancy 303.

[0050] The color of the first conductive film 9 formed by the pigment-equipped conductive ink is the second background color of the touch screen according to the design of the touch screen, and the color of the first insulating film is the first background color of the touch screen according to the design of the touch screen. The first background color and the second background color may be the same color, similar color or different colors according to the design.

[0051] 4. See figure 2 Part (5) of the second conductive ink is printed, and the second conductive film 2 formed thereon covers or is in contact with the first conductive film 9. The conductivity of the second conductive film is lower than that of the first conductive film. The film 9 reduces the resistance and conducts the approximate accurate value of the signal collected by the electrode formed by the first conductive film 9;

[0052] The second conductive ink can be an ink formulated with conductive silver paste.

[0053] 5. See figure 2 In part (6), after the above-mentioned printing is completed, the second insulating film 3 is printed, covering the first insulating film 10, the first conductive film 9, and the second conductive film 2, and leaving a second conductive film 2 Vacancy 306 connected to the flexible cable;

[0054] The second insulating film is formed of insulating ink.

[0055] The preparation steps of the conductive glass include:

[0056] 1. The raw conductive glass 307 is etched to obtain the required conductive touch operation area 308;

[0057] 2. Print the isolation glue 8 on the conductive glass, so that at least the touch operation area 308 is printed with the isolation glue 8; for the convenience of printing, the isolation glue 8 can be printed on the entire surface of the conductive glass;

[0058] 3. A third conductive ink is printed outside the touch operation area of the conductive glass to form a third conductive film 6. The third conductive film functions as an electrode and a wire; the third conductive ink can be an ink formulated with conductive silver paste.

[0059] 4. After the above printing is completed, the third insulating film 5 is printed, covering the third conductive film 6 and leaving a space 309 for connecting the third conductive film and the flexible cable; the third insulating film 5 can be used Insulating ink printing.

[0060] The prepared conductive optical film and conductive glass are bonded together with double-sided tape 4 to form a conductive module that can be touched; the double-sided tape is cut to leave a space 310 corresponding to the touch area and a corresponding second conductive film 2 And the third conductive film 6 and the vacancy 311 of the flexible cable connection position. If the size of the raw conductive optical film 301 is a large film containing several touch screen sizes as in this embodiment, the raw material size of the double-sided tape 4 is also large, and it is cut to leave a space 310 corresponding to the touch area. After the vacancy 311 corresponding to the connection position of the second conductive film 2 and the third conductive film 6 and the flexible cable, it is first bonded with the prepared conductive optical film, and then cut into units with the same size as the touch screen. The other side of the double-sided tape on the unit is bonded to the prepared conductive glass.

[0061] The flexible cable 12 is connected to the second conductive film 2 and the third conductive film 6 to form the resistive touch screen.

[0062] The printing is screen printing. The flexible cable 12 can be a flexible printed circuit board FPC.

[0063] Reference Figure 4 , 5. The resistive touch screen prepared by the above method is composed of a conductive optical film 1 and a conductive glass 7, and the conductive optical film and the conductive glass are bonded with double-sided adhesive 4;

[0064] A first insulating film 10 is printed outside the touch operation area of the conductive optical film, and the first insulating film functions as insulation, shielding, and decoration; where the corresponding electrode is located, the first insulating film is Leave a space 303 in which a first conductive film 9 formed by conductive ink for electrodes is printed, and the first conductive film functions to form electrodes, shield, and cooperate with the first insulating film to form decoration; A second conductive film 2 is also printed on the conductive optical film, and the second conductive film 2 covers or is in contact with the first conductive film; the conductive optical film is also printed with a second insulating film 3. The second insulating film 3 covers the first insulating film 10, the first conductive film 9, and the second conductive film 2, and leaves a space 306 for connecting the second conductive film 2 and the flexible cable 12;

[0065] An isolation dispensing 8 is printed in the touch operation area of the conductive glass, and a third conductive film 6 is printed outside the touch operation area 308 of the conductive glass, and the third conductive film 6 functions as an electrode and a wire; The conductive glass is also printed with a third insulating film 5, which covers the third conductive film 6 and leaves a space 309 for connecting the third conductive film 6 and the flexible cable 12;

[0066] The second conductive film 2 and the third conductive film 6 are connected to a flexible cable.

[0067] The flexible cable 12 can be a flexible printed circuit board FPC.

[0068] The first insulating film may also have vacancies 304 with a logo pattern, and a label film 11 is printed in the vacancies 304.

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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

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Classification and recommendation of technical efficacy words

Simplify the production process
Improve yield

Method for manufacturing resistance-type touch screen and resistance-type touch screen

A touch screen, resistive technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of difficult process, etc., achieve the effect of thin thickness, reduce production cost, and save man-hours

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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