Touch screen sensor back protection laser process

Abstract

The invention relates to the field of touch display, in particular to a touch screen sensor back protection laser process which mainly comprises the steps of designing a laser drawing file, adjusting laser parameters of a laser machine, performing laser and removing back protection residual parts. According to the touch screen sensor back protection laser process provided by the invention, before the touch screen sensor is manufactured and formed, the back protection of the touch screen sensor is subjected to laser treatment, so that the yield loss caused by addition of an attaching process and replacement of the back protection is solved, the attaching process is reduced, the working efficiency is improved, the cost is saved, and the product competitiveness is improved. Moreover, the back protection laser process of the touch screen sensor can avoid line damage to a touch screen sensor product caused by laser energy fluctuation, does not affect the functions of the touch screen sensor product, is high in feasibility, and can be used for mass production, product cost reduction and product competitiveness improvement.

Description

technical field [0001] The invention relates to the field of touch display, in particular to a laser process for the back cover of a touch screen sensor. Background technique [0002] With the rapid development of 5G technology and the Internet, the whole society has entered a deeper digital era. From the Internet to the Internet of Things is a huge change. Many emerging technologies and industries represented by AR / VR, automatic driving, industrial Internet, and smart cities are developing rapidly, and touch screens play an important role in it. Touch screens include infrared, resistive, capacitive, surface acoustic wave and other touch solutions, among which capacitive touch screen is the best human-computer interaction touch solution. [0003] However, with the continuous upgrading of touch terminals, users not only pay attention to the smooth touch experience, but also put forward higher requirements for the appearance of touch terminal products or devices. Because the ...

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Problems solved by technology

[0003] However, with the continuous upgrading of touch terminals, users not only pay attention to the smooth touch experience, but also put forward higher requirements for the appearance of touch terminal products or devices. Because the touch screen narrow frame design is more beautiful, so the current market popular The touch screen more requires a narrow frame design, which involves replacing the back cover of the touch screen, so that the new back cover after replacement is similar in size to the AA area (i.e. the operating area) of the touch screen, exposing the edge area of ​​the touch screen, which is convenient for sticking foam glue. Avoid tearing off the back protector in advance to cause pollution or scratches to the touch screen and affect the visual appearance of the terminal

[0004] The traditional method is to remove the original touch screen back protection first, and attach a new back protection similar in size to the AA area to the lower surface of the touch screen (such as Bottom Film, that is, the lower surface of the lower conductive film layer), so it is necessary to add an additional bonding In this bonding process, it is not only easy to cause problems such as breakage, foreign body pad damage, substrate scratches, and bonding deviation, but also adds a bonding process, which increases the cost of materials, especially for medium and large-sized touch screens. For products, replacement of medium and large size back guarantees and addition of a bonding process, the labor cost is relatively high; it also involves yield loss, etc., resulting in waste of resources, and in an increasingly fierce market environment, leading to a decrease in product competitiveness

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