UV curing adhesive PhotolecS

フォトレックS - LCD用ODFシール剤
UV + heat curing adhesive
HMI functionality improvements
Product category Design/Comfortable

UV curing adhesive PhotolecS

-Challenge-  Maintaining sealing performance due to complex panel geometry

With advanced driver assistance systems (ADAS) continuing to evolve, center information displays (CIDs) now offer entertainment in addition to conventional navigation and air conditioning functions, and the importance of displays is growing as they feature more sophisticated designs and are becoming larger in size.
In the production of liquid crystal displays (LCDs) using the one drop fill (ODF) process, there are issues such as the contamination of LCDs by the surrounding sealant, lack of adhesive strength due to the narrower sealing lines associated with narrower panel borders, and poor application performance.

パネル形状複雑化に伴うシール性保持

-Solution-  Sealant with excellent drawing and adhesive properties

The ODF sealant for LCDs Photolec S, is an adhesive that can be cured with UV and heat, ideal for the ODF method of LCD panel assembly. 
It has low elution from resin and high humidity resistance, resulting in low-contamination risk to LCDs.
It offers great workability with a high degree of freedom in dispensing,  and strong adhesiveness which enables the narrow side dispensing and panel attaching, and is suited for the narrowing of panel borders.
A wide product lineup and abundant product variations are available.

描画性と接着性に優れたシール剤

-Technology-  Technical information

Technical information

Technical overview

 High adhesive strength

Strong adhesion

Excellent adhesion for narrower bezel.
Strong adhesion

 Low pollution

Pollution and moisture resistance

Prevent contamination and pollution LC,
organic materials(ex PI).
Low pollution

 Good workability

Excellent drawing

Easy handling and can draw fine line.
描画性

 Wide product lineup

A wide range of products variations

There is also black type & low temperature
curing type for film substrate.
豊富なラインナップ

Technical details

 Excellent adhesionOur functional resin technology and adhesive design
technology can offer your required adhesive performance.

Item Standard Soft
Curing
conditions
UV+Heat 3000mJ/cm2+120℃60min
Viscosity 25℃、1rpm MPa・s280,000230,000
Ti 1rpm/10rpm -1.151.37
W V T R 60℃90%RH g/m²3471
Shear bond
strength
Glass/Glass N/25
mm²>500>500
Tg DMA ℃9545

Low pollution

It is less likely to contaminate peripheral materials such as liquid crystals and has excellent
moisture resistance, reducing the risk of display defects.

 Excellent drawing

For the narrower frame, the thinner the sealant should be drawn.
If it can’t draw, you can’t make LCD panels.
Frequently asked inquiries
  1. 1. Air bubble
  2. 2. Viscosity is too high to go out
  3. 3. Drawing line problem
→Design and technical services can be proposed

Wide product lineup

A diverse lineup is available, including visible light curable types, low temperature curable types, soft types, and black types.
  • ・Beside LCD panels, can be suitable for application such as Lamination of optical lenses
  • ・Camera module fixing
  • ・μOLED
and more

Document download

認定証ダウンロードファイル一覧

Name Type File Update File

Catalog:UV curing adhesive Photolec S_SekisuiMobilitySolution

Catalog

pdf 2023-09-11
Download 1.14 MB