Membrane Switch with Optical Solutions

- Introduction to Full Lamination Process Technology
  
  The full lamination process (Optical Bonding) involves bonding optical components such as PC lenses, touch screens, and LCD displays on the back of the membrane switch display window using OCA adhesive to enhance display performance and durability. Below are the main bonding techniques and steps:
  
  Cleaning: All optical components must be thoroughly cleaned before bonding to ensure they are free from dust, grease, or other contaminants.
  
  OCA Laminating: Peel off the release liner of the OCA(Optically Clear Adhesive) and laminate it on the surface of the optical components.
  
  Bonding: The optical components laminated with OCA are aligned and bonded with the membrane switch display window. This is done gradually in a vacuum laminating machine to ensure no bubbles or dust.
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- OCA Adhesive Specifications
  
  OCA adhesive is a key material in the full lamination process, known for its high transparency, strong adhesion, and excellent weather resistance. Common specifications for OCA include:
  
  Thickness: Typically ranges from 50μm to 250μm, chosen based on application needs.
  
  Transparency: Generally has a light transmittance of over 90% to ensure good display performance.
  
  Adhesion Force: High adhesion to ensure it does not peel off or bubble during long-term use.
  
  Temperature Resistance: Maintains stable performance over a wide temperature range.
  
  Anti-Yellowing: Does not yellow easily over time, maintaining transparency.
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Common Optical Components

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1.PC Lenses (Polycarbonate Lens)

2018-07-16

Function: Used to protect the display and increase durability and impact resistance. Thickness: Generally ranges from 0.2mm to 1.0mm.
Size: Customized based on specific application needs, common sizes range from 3 inches to 10 inches.
Light Transmittance: Generally over 85%.

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Membrane Switches With Optical Components49wt

2.Touch Screens

Function: Includes capacitive and resistive touch screens, used for user interaction with devices.
Thickness: Capacitive touch screens generally range from 0.4mm to 1.2mm, while resistive touch screens range from 1.0mm to 2.0mm.
Size: Common sizes range from 3.5 inches to 17 inches.
Light Transmittance: Capacitive touch screens generally have a transmittance of 85% to 90%, while resistive touch screens are around 80%.

Membrane Switches With Optical Components5ezl

3.LCD Displays (Liquid Crystal Display)

Function: Provides primary display functionality, common in various electronic devices.
Thickness: Generally ranges from 0.5mm to 2.0mm.
Size: Common sizes range from 1.44 inches to 15.6 inches.
Resolution: Ranges from low resolutions like 320x240 to high resolutions like 1920x1080 and above.

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Membrane Switches With Optical Components8buw

4.Cover Glass

2018-07-16

Function: Protects and covers the display surface, enhancing scratch resistance and durability.
Thickness: Generally ranges from 0.3mm to 2.0mm.
Size: Customized based on device size, common sizes range from 3 inches to 10 inches.
Hardness: Typically uses tempered glass with a hardness of Mohs 6 to 7.

Applications of Membrane Switches with Full Lamination Optical Components applications

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Why Bond These Optical Components?

1.Improved Display Performance: The full lamination process eliminates air layers between optical components, reducing light reflection and refraction, enhancing brightness and contrast.

2.Enhanced Durability: The full lamination process makes the optical components more robust, able to withstand impacts, vibrations, and other forces, extending product life.

3.Better Touch Experience: Fully laminated touch screens improve touch precision and responsiveness, providing a smoother user experience.

4.Dust and Water Resistance: Full lamination technology ensures seamless connections between components, improving dust and water resistance for a wider range of environments.

5.Reduced Weight and Thickness: Full lamination technology can reduce the thickness and weight of components, suitable for slim design requirements.

Membrane Switches With Optical Components6gwp

7 Jan 2019

Membrane switches combined with fully laminated optical components are widely used in the following industries and products:

Consumer Electronics

Smartphones, Tablets: Improve touch screen precision and display performance.

Wearable Devices: Enhance screen durability and water resistance.

Medical Devices

Medical Monitors: Ensure high-precision display, facilitating data reading for medical staff.

Portable Medical Devices: Improve device durability and portability.

Industrial Control

Industrial Control Panels: Improve panel durability and operational precision, suitable for harsh industrial environments.

Instruments: Ensure clarity and accuracy of readings.

Automotive Electronics

In-Vehicle Displays: Enhance anti-reflective and high-temperature resistance of displays, suitable for complex in-car environments.

Center Control Touch Screens: Provide a better touch experience and display performance.

Home Appliances

Smart Home Control Panels: Improve touch response speed and display performance.

Kitchen Appliance Displays: Improve display durability and water resistance.

Summary

By integrating fully laminated optical components, membrane switch products can provide superior performance and user experience across multiple industries and application scenarios.