Optically-Clear Resin

Product types

For polarizers (& retarders)

Our products support various polarizer applications.

• Countermeasure for optical ununiformity
• High durability
• Acid-free

Various refractive index

We offer optical adhesives in both high and low refractive index types.

• Refractive index adjustment: Adjusted to index matching films
• High refractive index type: Refractive index 1.59
• Low refractive index type: Refractive index 1.37

Low WVT

This is an optical adhesive with a low water vapor transmission rate.

• Low water vapor transmission
• Low dielectric constant

UV peel-off type (for semiconductor manufacturing)

The UV peel-off adhesive for semiconductor processes decreases adhesion at a low amount of UV irradiation (400 mJ).

• Before UV irradiation: High adhesion
• After UV irradiation: Zero adhesion
• Good processability

Example Applications

For polarizers (& retarders)

Adhesives for polarizers are divided into two types of applications: affixing and interlayer use. These have different quality requirements.

For affixing: Affixing polarizer to glass (liquid crystal cell)

• Required characteristics:
  　　　　(1) Durability
  　　　　(2) Reworkability
  　　　　(3) Countermeasure for light leakage
  　　　　(4) Warp resistance

For interlayer use: Lamination of polarizer and various optical films

• Required characteristics:
  　　　　(1) Durability
  　　　　(2) High adhesion
  　　　　(3) Thin film support

For other use

This lineup features adhesives with unique features.

• Refractive index adjustment: IM (index matching) applications of ITO film, etc.
  　　　(1) High refractive index type
  　　　(2) Low refractive index type
• Low WVTR: Barrier film, polarizer affixing for narrow-framed displays, etc.
• UV peel-off adhesive: Temporary affixing of carrier materials in semiconductor post-processing, etc.