Products

Optically Clear Adhesives

576 Series

The OPBTM 576 Series is designed for full lamination of optical components in smartphones and large-sized touch displays. This adhesive features an elastic gradient design, providing superior processing characteristics compared to conventional optical adhesives. The high modulus inner layer offers excellent mechanical strength, improving bonding yield and facilitating rework operations. The low modulus outer layer prevents color shift after bonding with the LCD module and excels in ink gap filling.

Specification

  • Typical Properties
Item Unit OPBTM-57610
Thickness um 250
Total Transmittance(TT) % 90.45
Hue(L*, a*, b*) - 96.0, -0.4, 0.4
Release Film(Haze) % 0.2
Yellowness Index(YI) - 0.5
Storage Modulus(G') kPa 80
Adhesion Force(Peeling Force) Kgf/inch 2.0

 

  • Reliability Properties
Reliability Condition Optical Propertiesa Appearanceb
95˚C, 1000h Δ Haze < 1
Δ YI < 1
T% > 90%
Δ b* < 1
No Bubble
No Delamination
-40˚C, 1000h
85˚C/85%RH, 1000h
-40~85˚C, 1000cycles
aStructure of Test Specimen Glass/OCA 250um/Glass,尺寸4x4 cm2
bAppearance of Test Specimen Glass/OCA/Polarizer/Glass,尺寸10x10 cm2

Structure

Application

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