Double coated tapes for LCD modules
With both light blocking and reflecting effects for fixing of liquid crystal displays or backlight units.
Products Category Double coated tapes
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Comparison

Product name

 T7560HB(K)

Suitable use

 For LCD modules

Application

 Computers / AV / Cellular phones

Features
  • Black face for light shielding effects, white face for light reflecting effects.
  • Halogen free.
  • T7560HB(K): Thinner type of T7585HB(K).
   
   
   

Structure

Specifications
Product name T7560HB(K)
Main component Acrylic base
Carrier 38µm PET
Color White side/black side
Adhesive thickness(µm) About 60
Release film thickness(µm) About 50 for white side/about 38 for black side
Bonding strength(N/20mm) 7
St'd size (width & length) 500mm x 100m

*T7560HB(K): With both side release film.
*Patent No.: 3690298

Application Example

For fixing of LCD modules and backlight units.
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Technical Data

1.Bonding strength at different temperatures (180° peeling) 180°Peeling strength test
Test Piece Condition
Tape width: 20mm
Bonding condition: One stroke with 2-kg roller
Peel speed: 300mm/min
Backing material: 25µm PET
  • [ Left at RT for one hour and then at each temperature for 30 minutes before measurement ]
Results


AF: Adhesive failure  PET-FB:PET film breakdown   Unit:N/20mm
Substrate Setting temperature(°C)
-30 0 23 85
PC/White 9.3 PET-FB 6.8 PET-FB 7.2 AF 4.0 AF
Glass/Black 12.6 PET-FB 8.6 PET-FB 10.9 AF 6.6 AF
2.Bonding strength after heat cycle test (180° peeling) 180°Peeling strength test
Test Piece Condition
Tape width: 20mm
Bonding condition: One stroke with 2-kg roller
Peel speed: 300mm/min
  • [ Left at RT for one hour, and ten cycles of a heat cycle test were conducted, each cycle consisting of "-30°C x1 hr<-> 85 °C x 1hr." ]
Results


AF: Adhesive failure  PET-SF:PET Surface failure  Unit:N/20mm
Substrate Setting temperature(°C)
Initial After cycle
PC/White 7.2 AF 9.1 AF
Glass/Black 10.9 AF 12.6 AF
3.Holding Power at different temperatures Holding power test
Test Piece Condition
Substrate: Stainless steel plate (SUS304)
Bonding area: 25mm x 25mm
Bonding condition: One stroke with 2-kg roller

Backing material:

 25µm PET
  • [ Left at RT for one hour and then at each temperature for 30 minutes before measurement ]
  • [ Creep length after one hour application of 1-kg load ]
Results
Unit:mm
Face bonded Setting temperature(°C)
23 40 80
White 0.1 0.1 0.2
Black 0.1 0.1 0.2
4.Optical characteristics  
Test Piece Condition
Wavelength: 550nm
Reflectance: Measured on white face
Light resistance: Measured on black face
  • Reflectance/light resistance (measured with spectrophotometer).
    *Reference values for reflectance and light resistance.
Results
Radiation surface Test item
Reflectance Light resistance
White About 75% -
Black - Greater than 99.9 %

<Comparison of light blocking ability>
A light (source: halogen lamp, 12 V, 100 W) is shone on a white face and how the light is transmitted from the other black face is observed visually.
Our traditional product
T7560HB(K)

5.Reworkability  
Test Piece Condition
Tape bonding area: 3mm x 30mm
Results
Substrate Aging condition
-30°C x 14 days 40°C x 14 days 80°C x 14 days
 60°C-95%RH x 14 days
PC/White
Polarizing plate/Black
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caution The technical data in this document, which was acquired based on reliable tests, does not guarantee full performance as per the documentation in any instance. Users assume total responsibility and risk for use of this product for any purpose under any usage conditions.