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Introduction to OCA Lamination Membrane Switch

Introduction to OCA Lamination Membrane Switch

Feb 25, 2021

What is OCA Lamination Membrane Switch?

Mobile phone or tablet devices contain the touch panel screen that is the primary interface of the devices which use the oca lamination membrane switch. OCA lamination membrane switch is an integral part of an oca lamination machine.

The OCA lamination machine is a helpful device for repairing the touch panel screens of mobile phones or tablets. It switches thereby helps the machine in performing the necessary task to fix the broken screen panel or screen in an efficient manner. The machine works in a versatile manner.

There, therefore, are no restrictions regarding the use of the lamination OCA machine. By this, it means that one can repair the iPhone, Samsung, or any other brand by using the same machine. In the machine, for operating or executing the necessary function, the imperative function is of the membrane switch.

OCA lamination membrane switch

In the machines, one can repair all types of broken screen panels that use membrane switches. This thereby makes the machine an automatic working device. Even a layman can learn it in a short time.

Optical Bonding Mechanism in Membrane Switches and their User Interface Experience

As we know very well about the OCA lamination membrane switches. Therefore, for each membrane switch thereby are many types of bonding technology.

However, for a membrane switch or HMI, the bonding nature of the switch depends upon the nature and design of the product. Furthermore, the binding nature of these membrane switches comprises three further types.

This includes LOCA (Liquid Optical Clear Adhesive), OCA (Optical Clear Adhesive), and Air Bonding. With the order, thereby the engineers are guiding the customers about the development of the product for your custom designs that matches your products.

Bonding Options for Membrane Switch

LOCA (Liquid Optical Clear Adhesive)

In this type of bonding, there is a big role that a UV light plays in the OCA lamination membrane switch. This is because of the air gap inside the display surface between the rare side sensor and the surface itself.

This air gap is filled with a UV light adhesive bonding material. The nature of the UV light adhesive is free from the silicon particles. Furthermore, the nature of the UV light adhesive also is free from aging drawbacks and it also is feasible because of the stable UV liquid. This kind of LOCA adhesive bonding material is thereby suitable for the TFT screen panels and display units.

This LOCA adhesive material is applicable on the cover of the glass. From there then it attaches itself to the TFT touch panel. However, the condition remains that there must be air-free and bubble-free even spread of adhesive between the two components.

There is therefore no need to cure the adhesive liquid with heat. However, it requires UV light. LOCA due to these features becomes one of the best technologies for bonding the membrane switches.

For the global display integration, the LOCA remains the tablets and laptops across the globe. Furthermore, because of the durability and the reliable nature of the display, other industries such as agriculture, avionic, as well as the military industry is using and incorporating the LOCA technology.

OCA (Optically Clear Adhesive)

The lamination process in the OCA lamination membrane switch involves the optically clear adhesive material. This lamination involves the bonding material from the soft to the hard stage. By this, it means the adhesive bonding like that of the film-based sensors that we use behind the cover-lens. With the option of autoclave, the excess amount of bubble gets out of the storage.

The touchscreens nowadays mostly use the OCA bonding mechanism. Furthermore, the LCD flat panels and TGO (transparent graphic overlay) devices, and other such display units use the OCA bonding mechanism. For the tight bonding and rigid bonding mechanism, the optically clear adhesive is the best solution.

This is because the adhesive technology hence is thin and consistent. This is the reason that it is famous for dry film and pressure-sensitive adhesive bonding technology. In addition to that nevertheless, the OCA still carries a lot of bonding subtypes that fairly depend upon the nature and application of the usage.

Air Gap Bonding

In the mechanism of air bonding of the OCA lamination membrane switch, the user directly installs or sticks the display panel directly behind the sensor.

This also goes the other way around wherein the user installs the adhesive fil directly on the printing of the cover lens. This process however requires a clean room for the execution. In this process, nevertheless, the air between the sensor and the lens remains there.

To connect the display and the sensor, the air gap bonding adhesive technology appears to be a cheap and cost-effective method. It furthermore involves the close and well as single strip adhesive for assembly.

However, it very well depends upon the nature of the application. For handling personal smart display devices like smartphones, iPads, or tablets, the air gap mechanism is the most economical and lightweight method. The integrated layers leave behind the small air gap.

Operating Principle Behind the OCA Lamination Membrane Switch

In the lamination machines where we use the OCA lamination membrane switch, the process overall is automated in nature. The machines that are used for the installation of the membrane switch involves just s single computer chipped board.

This program helps the users and instruct them to work on it and use the laminating machines for the smartphones. The automated machines allow the user to replaces and attached the screen display unit with the smartphone.

For this purpose, therefore it is imperative for the user to understand the smartphone first. The LCD screen of the smartphone comprises the 3 layers or parts. The first layers include the front glass. The second layer is the OCA glue layer and the last but not least the LED, LCD, or OLED display panel. This LCD panel lies underneath the previous two layers.

In the process, the user places the LCD panel inside the machine. In this process, simultaneously, the user also places the new front glass as well as the OCA glue material as well. The traditional method is the placement of the LCD panel in the lamination chamber.

Inside the chamber there establishes a vacuum that helps in the attachment of the front glass as well as OCA glue. There then comes the heating process. In this step, the heating of the OCA glue eliminates the presence and existence of the air bubbles.

Benefits of The Using the OCA Lamination Machine Membrane Switch

There are multiple benefits of using the OCA lamination switch. This includes the best combination that comes as a soft to the hard combination. This is the perfection of the OCA lamination machines that appear between OCA glue and LCD screens.

However, on the other hand, there are manual methods. These methods nonetheless allow the significant boost up of air particles and bubbles. In the OCA lamination machine, on the contrary, there is a seamless process that perfectly attaches the required LCD panel.

The machine additionally involves the vacuum machine pump inside it. This pump eliminates the chances of air bubbles. Furthermore, the machine contains an air compressor that creates strong pressure for the OCA lamination machine.

On the contrary, the manual procedure also involves the existence of a number of dust particles as a common problem. However, in the OCA lamination machine, there is no such issue.

OCA lamination membrane switch

Nevertheless, in the manual procedure, the visual interception becomes vague because of the presence of dust particles. Similarly, one needs not worry about the loose fitness of the LCD panel as it happens in the manual procedures. However, in the OCA lamination machine, the perfect replacement results in the perfect look of your smartphone.

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