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
Please select the product name :
Comparison
T7585HB(K)

Product name

 T7585HB(K)

Suitable use

 For LCD modules

Application

 Computers / AV / Cellular phones

Features
  • Black face for light shielding effects, white face for light reflecting effects.
  • Low total tape thickness: effective in the reduction of product thickness.
  • Halogen free.
  • T7560HB(K), a thinner type of T7585HB(K), also available.
   
   
   

Structure

Specifications
Product name T7585HB(K) 
Main component Acrylic base
Carrier 38 µm PET
Color White side/black side
Adhesive thickness(µm) About 85
Release film thickness(µm) About 50 for white side/about 38 for black side
Bonding strength(N/20mm) 15
St'd size (width & length) 500mm x 100m

*T7560HB(K): With both side release film.

Application Example
gp:T7585HB(K)
For fixing of LCD modules and backlight units.
Top of page

Technical Data

1.Bonding strength on various type of substrate (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: 25mµ PET
  • [ Left at RT for one hour and then at each temperature for 30 minutes before measurement ]
Results


AF: Adhesive failure  PET-FB film break down: PET Surface failure Unit:N/20mm
Substrate Setting temperature(°C)
-30 0 23 85
PC/White 16.5 PET-FB 22.5 PET-FB 16.4 AF 5.6 AF
Glass/Black 20.6 PET-FB 21.5 PET-FB 14.3 AF 3.5 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


  Initial after cycle
PC/White 16.4 AF 186 AF
Glass/Black 14.3 AF 165 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
  • [ 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 0.2 0.2 0.3
Black 0.2 0.2 0.3
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 84% -
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
T7585HB(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
Top of page
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.