Usage Scenarios
UV-Cut + Gas Dissipative OCA, OpticPB® 28C Series, designed for bonding of outdoor e-paper displays.
Outdoor E-paper Touch Display Front Light Bonding — OpticPB® 28C10 (250 µm)
OpticPB® 28C Series
UV-Cut OCA for Outdoor Applications
OpticPB® 28C Series is an optically clear adhesive (OCA) combining air release and UV-cut functionalities, specifically designed for outdoor E-paper display bonding applications. It features excellent breathability and a higher moisture vapor transmission rate (MVTR) than conventional products, enabling efficient outgassing during lamination and under high-temperature conditions to reduce bubble formation and delamination.
In addition, the product provides superior UV blocking capability, significantly reducing ultraviolet penetration into the display module and minimizing long-term degradation of optical components caused by outdoor exposure. It is suitable for front light module lamination in E-paper applications and has been validated through Solar testing to ensure long-term reliability in outdoor environments.
Specification
Basic Data
| Type |
Item |
Test methods / conditions | 0.25 mm(t) values | |
|---|---|---|---|---|
| Optical properties | Haze (%) |
Spectrophotometer (Glass / OCA / Glass ) |
Room Temperature | 0.05 |
| Total light transmittance (%) |
Spectrophotometer (Glass / OCA / Glass) |
Room Temperature | 90.84 | |
| b* |
Spectrophotometer (Glass / OCA / Glass) |
Room Temperature | 1.12 | |
| Refractive index | JIS K 7142 | T = 23°C，λ = 589nm (Na, D line) | 1.48 | |
| Adhesion properties | 180° peel strength (N/25mm) |
peel strength：300 mm/min |
vs Glass | 16 |
| vs PC | 15 | |||
| vs TAC | 11 | |||
Customer Evaluation Pass Record
| Type |
Item |
Test methods / conditions | Others | |
|---|---|---|---|---|
|
Optical reliability test
|
High temperature test | 95°C | 1000 hrs | — |
| Low temperature test | -40°C | 1000 hrs | — | |
| High temperature and high humidity test | 85°C / 85% RH | 1000 hrs | — | |
| Thermal shock test | -40°C ⇔ 85°C | 1000 cycles | — | |
| UV test | Customer specification conditions | 1000 hrs | JIS D0205、DIN75220, etc. | |
| Other | High altitude test | MIL-STD810 | passed | — |
Note:
Values are actual measurements, not guaranteed values.
Acceptance criteria: no whitening, yellowing, delamination, delayed bubbles, abnormal operation, display MURA, etc. after the test.
Pack Sizes
-
Width/Thickness/Length 1,200mm×250μm×200m/roll
-
Customized die-cutting sizes
