Products

Double coated tapes for LCD modules

With both light blocking and reflecting effects for fixing of liquid crystal displays or backlight units.


Comparison

Please select the product name :


image

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

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

Application Example
For fixing of LCD modules and backlight units.

Top of page

Technical Data

1.Bonding strength on various type of substrate (180° peeling)


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
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)


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
Results
  Initial after cycle
PC/White 16.4 AF 186 AF
Glass/Black 14.3 AF 165 AF

3.Holding Power at different temperatures


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.

Results
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
coution
Note on the characteristic data given - Data on the characteristics of the products described in this page based on the results of evaluations carried out by the company. This does not guarantee that the characteristics of the product conform with your usage environment. Before use, review the usage conditions based on evaluation data obtained from the equipment and substrates actually used.