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Capacitive touch screen laminating process

A capacitive touch screen and lamination technology, applied in electrical digital data processing, lamination devices, instruments, etc., can solve the problems of inability to meet the technical requirements of capacitive touch screen, bubble generation, inaccurate alignment, etc., and meet the requirements of guaranteed appearance , Improve the accuracy of fitting and alignment, suitable for mass production

Inactive Publication Date: 2012-01-04
TIANJIN ZHONGHUAN HI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the problems of inaccurate alignment and bubble generation during the pasting process, the traditional touch screen bonding process cannot meet the technical requirements of capacitive touch screen products

Method used

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  • Capacitive touch screen laminating process
  • Capacitive touch screen laminating process

Examples

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with drawings and embodiments. This process uses the SM-SL-50S (equipment model) touch screen pasting machine for lamination. It is a device that automatically superimposes and joins the required sheets of each layer, and is pasted by pressing and moving the laminating roller, which can carry out continuous operations. In this embodiment, a 0.18 mm thick indium tin oxide ITO sheet and a 100 μm thick optical transparent tape OCA are used for bonding, and the specific steps are as follows:

[0018] 1. Turn on the power and turn on the deionization fan to remove static electricity during the pasting process and reduce the adsorption of foreign matter.

[0019] 2. Lamination parameter setting: Set the parameters according to the thickness of the pasting sheet to ensure good adsorption of the sheet and reduce the generation of air bubbles during the pasting process. Set table vacuum: -50 Kpa; roller pr...

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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

technical field [0001] The invention relates to a manufacturing process of a touch screen, in particular to a bonding process of a capacitive touch screen. Background technique [0002] The launch of the iPhone in recent years has driven the development of touch screen technology. This technology is also being gradually applied to other portable electronic products. As the scale of the mobile phone market continues to increase, and the requirements for smart and convenient mobile phones are getting higher and higher, touch screens, as the most friendly human-machine interface, will be more and more popular in mobile phones. In addition to mobile phones, the application of touch screens in the field of automotive electronics is also becoming more and more extensive. With the rapid development of the automobile industry, people have higher and higher requirements for car entertainment information systems, and car navigation systems and in-car audio-visual entertainment syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/10G06F3/044
Inventor 王瑞霞赵勇王冬梅赵雪竹
Owner TIANJIN ZHONGHUAN HI TECH
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