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- Maintaining sealing performance due to complex panel geometry
- Sealant with excellent drawing and adhesive properties
- Technical information
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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.
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.
Technical information
Technical overview
High adhesive strength
Strong adhesion
Excellent adhesion for narrower bezel.
Low pollution
Pollution and moisture resistance
Prevent contamination and pollution LC,organic materials(ex PI).
Good workability
Excellent drawing
Easy handling and can draw fine line.
Wide product lineup
A wide range of products variations
There is also black type & low temperaturecuring type for film substrate.
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・s | 280,000 | 230,000 |
| Ti | 1rpm/10rpm | － | 1.15 | 1.37 |
| W V T R | 60℃90%RH | g/m² | 34 | 71 |
| Shear bond strength |
Glass/Glass | N/25 mm² |
>500 | >500 |
| Tg | DMA | ℃ | 95 | 45 |
Low pollution
moisture resistance, reducing the risk of display defects.
Excellent drawing
If it can’t draw, you can’t make LCD panels.
Frequently asked inquiries
- 1. Air bubble
- 2. Viscosity is too high to go out
- 3. Drawing line problem
Wide product lineup
- Beside LCD panels, can be suitable for application such as Lamination of optical lenses
- Camera module fixing
- μOLED
Characteristic
- Due to the sealant quality, there is a low risk of contamination and pollution to the LCD panel.
- The sealant is easy to handle and excellent to dispense with narrow width.
- The sealant can also adhere nonmetal substrate.
Process
POTORI Test Viscosity
Unevenness is not observed around the sealant
UV-cured black paste
One-liquid solvent-free UV+heating curing paste.
1Features
It can be used for bonding of transparent substrates, shading, etc.
- Light Shielding
- High level of uniformity, minimal presence of foreign materials
- High adhesive strength, low moisture permeability
- Low contamination (liquid crystal,organic material.etc)
2Applications
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