Photo Resist
Color Resist for FPD Color Filters
Product Overview
Color filters used in products such as flat panel TVs, computer systems and smartphones are essential components for reproducing color images in flat panel displays (FPDs).
In recent years, color filters are used in not only LCDs, electronic papers and organic electroluminescence (EL) devices, but also in various types of panel products.
A cutting-edge product that leverages Toyo Ink Group’s nano-dispersion process technology cultivated through printing ink and coating development, Toyo Ink Taiwan’s color filter resist for FPD applications holds the highest global market share. Capitalizing on our strength of in-house development and manufacturing of pigments, a raw material for filters, Toyo Ink is committed to the development of color displays that offer higher function and enhanced performance.
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What Is a Color Filter?
Color filters are produced by exposing a glass substrate evenly coated with color resist ink comprised of pigments from the three primary colors—red, green and blue (RGB)—and formed into a pattern. Once the light from the backlight source undergoes gradation control in the liquid crystal layer, it is converted into RGB light with varying intensity levels by passing through this RGB filter and assembled as display pixels. Liquid crystals in themselves only facilitate the passing or hampering of light from the backlight source and do not emit light or process color. As such, the color filter is the most important component for displaying color images.
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Transparent Photo Resist Coatings for FPDs LIOCURE Series
Product Overview
The LIOCURE series of transparent, photosensitive UV-curable coatings offer insulation protection and optical control for touchscreen displays. The LIOCURE series is a negative color resist developed by leveraging the Toyo Ink Group’s unique resin synthesis technology. It exhibits excellent UV curing and imaging properties during the post-exposure and development phases and offers excellent adhesion to glass and materials for circuit design.
In addition, the refractive index can be adjusted by integrating the treated film with a Toyo Ink dispersed material. When combined with different components, LIOCURE can be used in optical control.
•UV curing type multi-function hard coating LIODURAS series
Product Outline
As we are in a high-tech society, from the aspect of the need for diversity, multi-function, high productivity and low cost, the multi-functionality of plastic base materials are more and more emphasized. With the pigment dispersion technology and resin composing technology we have been researching and developing for years, we are committed to developing multi-function hard coating.
UV curing type multi-function hard coating LIODURAS series is UV curing type of coating, featuring high transparency and high hardness. In addition, LIODURAS series has products featuring various functions like antistatic, refraction restraining, anti-UV and anti-IR. Therefore, it is expected to be widely used for all kinds of purposes.
High transparency hard type coating LCH series
Product Outline
Clean and hard coating, mainly used to offer protection for the screen surface of FPD and mobile devices, to maintain high transparency, high hardness and anti-scratch features for devices. It can be widely used in plastic base materials and films like MMA, PC and PET.
[ LCH Series ]
High refraction hard type coating TYZ and TYS series
Product Overview
This high refraction coating is mainly used in FPD and touch panel in order to avoid light reflection. TYS series has AS function, while TYZ series has higher refraction. Both can meet customers’ needs for adjusting all kinds of refractions without compromising physical properties of other materials.
TYZ Series
Product Outline
High refraction type of hard coating, mainly used in FPD and touch panels for the purpose of avoiding refraction (multi-layer AR). TYZ series has high refraction features and does not decrease physical properties of other materials, resulting in wider range of adjustable refraction.
Application
This UV curing hard coating is developed for plastic base materials.
Can be processed into coating film with high transmittance and high refraction.
It can be processed into curing film with high hardness and good frictional resistance.
It can be used as ITO sputtering anchor.
Features
High transparency, high hardness
High refraction (with adjustable range from 1.64 to 1.74)
Performance
Physical Properties of Coating
Appearance Milky white liquid
Solid Content (%)
40
Viscosity (mPa‧s@25℃)
3～10
Type of Solvent Ketone/Alcohol/Glycols
Physical properties of coating film (for reference)
Item
Evaluation Method
Substance Property Value
Refraction Abbe refractometer
1.64 - 1.74 (Adjustable range)
HAZE
Haze meter (Nippon Denshoku NDH 2000)
＜1.0％
Total Light Transmittance
Haze meter (Nippon Denshoku NDH 2000)
＞86％
Abrasion Resistance
Steel wool #0000, 10 times of round trips with 500g load
No scratch
Pencil hardness
Based on JIS K 5600-5-4 (with 750g load)
2 hours
※Process condition for evaluating sample
Base plate used: 100μ easy-adhesive PET (TOYOBO Cosmo Shine A4100, 0.3％ of Haze, total light transmittance 89.3％)
Coating condition: Rod coater, with 3μm of film thickness
Drying condition: 100℃, 2 minutes
Curing condition: high-pressure mercury vapor lamp 80W/cm, with integral of light: 400mJ/cm2
※These values are for reference only. Actual values may vary.
TYS Series
Product Outline
This high refraction coating is mainly used in FPD and touch panel in order to avoid light reflection. TYS series with AS function can meet customers' needs for adjusting refraction without compromising the physical properties of other materials.
Application
This UV curing hard coating is developed for plastic base materials.
Can be processed into coating film with high transmittance, high refraction and anti-static.
It can be processed into films with high hardness and good frictional resistance.
Features
High transparency, high hardness, anti-static
High refraction (with adjustable range from 1.57 to 1.64)
Performance
Physical Properties of Coating
Appearance Milky white
Solid Content (%)
40
Viscosity (mPa‧s@25℃)
4～10
Type of Solvent
Ketone/Alcohol/Ethylene glycols
Physical properties of coating film (for reference)
Item Evaluation Method Substance Property Value
Refraction Abbe refractometer 1.45 - 1.55 (Adjustable range)
HAZE
Haze meter (Nippon Denshoku NDH 2000)
＜1.0％
Total Light Transmittance
Haze meter (Nippon Denshoku NDH 2000)
＞88％
Abrasion Resistance
Steel wool #0000, 10 times of round trips with 500g load
No scratch
Pencil hardness
Based on JIS K 5600-5-4 (with 750g load)
2 hours
Surface resistance value
Surface resistance meter (TOYO TOA DKK SME-8310)
109～1010Ω/□
※Process condition for evaluating sample
Base plate used: 100μ easy-adhesive PET (TOYOBO Cosmo Shine A4100, 0.3％ of Haze, total light transmittance 89.3％)
Coating condition: Rod coater, with 3μm of film thickness
Drying condition: 100℃, 2 minutes
Curing condition: high-pressure mercury vapor lamp 80W/cm, with integral of light: 400mJ/cm2
※These values are for reference only. Actual values may vary.
Anti-fingerprint hard coating EFC200 series
Product Overview
Based on the basic features of high transparency hard coating (such as transparency and high mechanical intensity), with the addition of lipophilic anti-fingerprint concept, this series is suitable for all kinds of plastic materials. The characteristics of this hard coating are: not easy to attach, with no obvious fingerprints and easy-to-wipe fingerprints.
[ EFC-200 Series ]
Other functional coatings
Other than the coatings above, according to the needs for optical properties, AS functions and all kinds of light shielding, customers also can optionally choose among the following to add onto the high-transparency hard coating: LAS series from AS function, TYT series with higher refraction, antimony-free high refraction AS hard coating TYP series, anti-IR and UV TYN/TYA series, and etc.
Product Specification
Series Name Filling Component Transparency Hardness Anti-static electricity UV Absorption IR Absorption Refraction Example of Base Materials Example of Product Application
EFC-200 Series － ◎ ◎ － － － 1.52 Adhesive PET Anti-fingerprint hard coating
PC, propylene
LCH Series － ◎ ◎ － － － 1.52 TAC, Adhesive PET Hard coating for LCD
PC, propylene
TYZ Series ZrO2 ◎ ○ － － － 1.63-1.74 Adhesive PET AR thin films
PC, propylene Hard coating thin films
ITO sputtering anchor
TYM Series MgF2 ◎ ○ － － － 1.45-1.55 Adhesive PET AR thin films
PC, propylene
TYS Series Sb2O5 ◎ ○ ○ － － 1.54-1.64 Adhesive PET AR thin films
PC, propylene Anti-electrification thin films
Hard coating thin films
LAS Series － ◎ ◎ ○ － － 1.52 TAC, Adhesive PET Hard coating for LCD
PC, propylene Anti-electrification thin films
TYP Series PTO ◎ ○ ◎ － － 1.60-1.64 Adhesive PET AR thin films
PC、丙烯 Anti-electrification thin films
Hard coating thin films
TYPT Series PTO ◎ ○ ○ ○ － 1.63-1.70 Adhesive PET AR thin films
TiO2 PC, propylene Anti-electrification thin films
Hard coating thin films
TYA Series ATO ◎ ○ ○ － ○ 1.55-1.64 Adhesive PET AR thin films
PC, propylene Hard coating thin films
Anti-IR filters
TYT Series TiO2 ◎ △ － ◎ － 1.55-1.80 TAC, Adhesive PET Anti-UV thin films
PC, propylene Thin films with light-fastness
Ultra-refraction thin films
TYN ZnO ◎ △ － ◎ － 1.55-1.64 Adhesive PET Anti-UV thin films
PC, propylene Thin films with light-fastness
※The values in the above sheet is for reference only. Actual values should be treated as correct.
LCH Series
Product Outline
Transparent hard coating, mainly used to offer protection for the screen surface of FPD and mobile devices, to maintain the high transparency, high hardness and anti-scratch for devices. It can be widely used in plastic base materials and films like MMA, PC and PET.
Application
This UV curing hard coating is developed for plastic base materials.
It can be produced as coating film with no-interference signal, high transmittance, and good optical characteristics.
It can be processed into curing film with high hardness and good frictional resistance.
Features
High transparency, low interference signal
High hardness, high frictional resistance
Performance
Physical Properties of Coating
Appearance
Transparent liquid
Solid Content (%)
50
Viscosity (mPa‧s@25℃)
4～8
Type of Solvent
Ketone/Ester/Ether
塗工薄膜的物性(參考用)
Item
Evaluation Method
Substance Property Value
Refraction Abbe refractometer
1.52
HAZE
Haze meter (made by Nippon Denshoku, NDH 2000)
＜1.0％
Total Light Transmittance
Haze meter (Nippon Denshoku NDH 2000)
＞89％
Abrasion Resistance
Steel wool #0000, 10 times of round trips with 500g load
No scratch
Pencil hardness
Based on JIS K 5600-5-4 (with 750g load)
3 hours
※Process condition for evaluating sample
Base plate used: 100μ easy-adhesive PET (Toray U46)
Coating condition: Rod coater, with 8～9μm of film thickness
Drying condition: 80℃, 1 minute
Curing condition: high-pressure mercury vapor lamp 80W/cm, with integral of light: 350mJ/cm2
※These values are for reference only. Actual values may vary.
EFC-200 Series
Product Outline
Based on the basic features of high transparency hard coating (such as transparency and high mechanical intensity), with the addition of lipophilic anti-fingerprint concept, this series is suitable for all kinds of plastic materials. The characteristics of this hard coating are: not easy to attach, with no obvious fingerprints and easy-to-wipe fingerprints.
Application
This UV curing hard coating is developed for plastic base materials.
It can be processed into curing coating films which are easy to wipe,
or coating films with the combination of hardness and high transmittance.
Features
High transparency
Anit-UV (light-fastness)
Performance
Physical Properties of Coating
Appearance
Transparent liquid
Solid Content (%)
45
Viscosity (mPa‧s@25℃)
3～6
Physical properties of coating film (for reference)
Item
Evaluation Method
Substance Property Value
Pencil hardness
Based on JIS K 5600-5-4 (with 500g load)
2～3H
Abrasion Resistance Steel wool #0000, 10 times of round trips with 500g load 2-3 hours
HAZE
Haze meter (Nippon Denshoku NDH 2000)
0.7%
Total Light Transmittance
Haze meter (Nippon Denshoku NDH 2000)
91%
Seal tightness
1mm Cross-Cut Checkboard seal tightness test (JIS K-5600-5-6)
Non-delamination
※Process condition for evaluating samples (for reference)
Base plate used: 100μ easy-adhesive PET
Coating condition: Rod coater, with 5-6μm of film thickness
Drying condition: 70℃, 2 minutes
Curing condition: high-pressure mercury vapor lamp 80W/cm, with integral of light: 300mJ/cm2
※These values are for reference only. Actual values may vary.
