CN102303449A - Capacitive touch screen laminating process - Google Patents

Abstract

The invention relates to a capacitive touch screen laminating process. The process comprises the following steps: 1. selecting a lamination program according to the product model; 2. setting lamination parameters and vacuumizing the table board, wherein the pressure is -40 to -85 Kpa, the rolling shaft pressure is 400-600 g, and the shift-out speed is 30-50 cm/min; 3. clicking an original point and resetting a turning plate and a transfer plate; 4. clicking a locating needle button so that the locating needle pops up; 5. placing an optical clear adhesive (OCA) punched with locating holes on the transfer plate so as to carry out vacuum extraction; 6. placing a sheet needing to be laminated on the turning plate so as to carry out vacuum extraction; 7. removing the sheet needing to be laminated and a protective film on the OCA; 8. starting a start button so that equipment works; and 9. after the lamination, taking down the laminated sheet from the turning plate. Through the process, the problems of inaccurate alignment and bubble generation in the lamination process of the touch screen are solved, the lamination alignment precision is improved, the generation of foreign matters and bubbles is reduced, and the requirements on the product appearance are met. The lamination process is simple and fast and suitable for mass production.

Description

A kind of technology for attaching capacitive touch screens

Technical field

The present invention relates to technology for manufacturing touch screen, particularly a kind of technology for attaching capacitive touch screens.

Background technology

The release of iPhone mobile phone has in recent years driven the development of touch screen technology.This technology also is applied on other the portable electronic products just gradually.Along with the mobile phone market scale continues to increase, and mobile intelligent, facilitation degree are required increasingly high, touch-screen also can be more and more universal as a kind of the most friendly application of man-machine interface on mobile phone.Except mobile phone, touch-screen in the application of vehicle electric field also more and more widely.Along with the fast development of car industry, people are also increasingly high to the requirement of automobile entertainment information system, and onboard navigation system, the interior video and music entertainment system of car etc. begins to be popularized.The touch-screen market that is used for portable navigation device and other electronic equipments will reach 600,000,000 dollars in 2012.Retail business also is the staple market of following touch-screen applications.Along with commercial POS (point of sale) system is applied in the industries such as retail business, catering trade more and more, the application of touch-screen on POS system is also more and more universal.Whole world retail business estimates will account for 18.2% of touch-screen total size in 2012 that with the market scale of touch-screen sales volume reaches 800,000,000 dollars.In addition, along with the release of windows 7 operating systems, this also will drive the growth of touch-screen in the PC industry.Add the touch-controlization in fields such as touch-screen industrial control field, medical field, common query system, lottery industry field, self-service terminal, the market space of touch-screen has the trend of continuous amplification.

In these touch-screens development trend relatively good be capacitive touch screen, the key of the production and processing of this touch-screen is to guarantee precision, outward appearance cleanliness factor (no bubble, the foreign matter) requirement of fitting.Put up the problem that contraposition is forbidden and produced bubble in the process because the traditional touch screen attaching process exists, can't satisfy the requirement of capacitive touch screen product technology.Therefore, researching and developing a kind of technology for attaching capacitive touch screens just becomes inevitable.

Summary of the invention

In view of above-mentioned prior art situation, the present invention provides a kind of technology for attaching capacitive touch screens.

The present invention realizes through such technical scheme: a kind of technology for attaching capacitive touch screens is characterized in that: comprise the steps:

(1), according to product type, select the applying program;

(2), set applying parameter, table top vacuum :-40 to-85 Kpa; Roller bearing pressure: 400 to 600 g; Shift out speed: 30 to 50 cm/min;

(3), click initial point ORIGIN, returning face plate TURN and transfer plate TRA make zero;

(4), click pilot pin PIN button, pilot pin PIN ejection;

(5), the optical clear adhesive tape OCA that will accomplish fluently locating hole is placed on the transfer plate TRA, inhales vacuum;

(6), the sheet material that will fit is placed on the returning face plate TURN suction vacuum;

(7), take the sheet material of needs applying and the diaphragm on the OCA off;

(8), start start button, equipment operation;

(9), fitting finishes, and takes off the sheet material after the applying from returning face plate TURN.

The beneficial effect that the present invention produced is: take this technology; Solve touch-screen and puted up the problem that contraposition is forbidden and produced bubble in the process; Thereby improved the applying aligning accuracy, reduced the generation of foreign matter, bubble in the applying process, guaranteed the product appearance requirement.Its method of operating is simple, fast, is fit to produce in batches.

Description of drawings

Fig. 1 is that the touch-screen that the present invention adopts is puted up the motor-driven procedure chart of doing.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is described further.This technology uses SM-SL-50S (unit type) touch-screen to put up machine and fit, and is with each layer needs sheet material joints that superpose automatically, rolls through applying and pushes mobile equipment of fitting, and can work continuously.Present embodiment adopts thick tin indium oxide ITO sheet material and the thick optical clear adhesive tape OCA of 100 μ m of 0.18mm to fit, and concrete steps are following:

1. power-on is opened the deionization fan, removes and puts up static in the process, reduces the absorption of foreign matter.

2. applying parameter is set: carry out parameter by the difference of putting up sheet thickness and set, to guarantee the good of sheet material absorption, can reduce the generation of bubble in the process of putting up again.Set the table top vacuum :-50 Kpa; Roller bearing pressure: 450 g; Shift out speed: 40 cm/min.

3, put up:

1), selects applying program (importing in TURN plate and the TRA plate process each position step by step in the program in advance) to guarantee the precision of applying according to product type.

2) click ORIGIN (initial point), TURN plate and TRA plate make zero.

3) click the PIN button, PIN ejects (through the precision of PIN location to guarantee to fit).

The OCA that 4) will accomplish fluently locating hole is placed on the TRA plate, inhales vacuum.

5) sheet material that will fit is placed on the TURN plate, inhales vacuum.

6) take the sheet material of needs applying and the diaphragm on the OCA off.

Speed is slow when 6-1) taking off film, avoids producing too much static.

6-2) take off behind the film starting device immediately, it is of a specified duration excessively to avoid sheet material to be exposed in the air time, the absorption dust

7) start start button, the equipment operation.

8) applying finishes, and takes off the back sheet material of fitting from the TURN plate.

With reference to Fig. 1, in the applying process, the upset of TURN plate 180 degree, the TRA plate moves on to the position of fitting under the TURN plate; The TURN plate is turned off vacuum automatically, lifts sticking roller bearing, and sticking roller bearing rises; Push up the TURN plate, the TRA plate slowly shifts out, so the OCA on the TRA plate is fitted to the needs subsides on the TURN plate

On the sheet material that closes, the TRA plate moves along the X axle, and after the TRA plate shifted out, sticking roller bearing descended, and TURN plate 180 degree turn, and the rotational regression original position is accomplished and fitted.

Claims (1)

1. a technology for attaching capacitive touch screens is characterized in that: comprise the steps:

(1), according to product type, select the applying program;

(2), set applying parameter, table top vacuum :-40 to-85Kpa; Roller bearing pressure: 400 to 600 g; Shift out speed: 30 to 50 cm/min;

(3), click initial point ORIGIN, returning face plate TURN and transfer plate TRA make zero;

(4), click pilot pin PIN button, pilot pin PIN ejection;

(5), the optical clear adhesive tape OCA that will accomplish fluently locating hole is placed on the transfer plate TRA, inhales vacuum;

(6), the sheet material that will fit is placed on the returning face plate TURN suction vacuum;

(7), take the sheet material of needs applying and the diaphragm on the OCA off;

(8), start start button, equipment operation;

(9), fitting finishes, and takes off the sheet material after the applying from returning face plate TURN.

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