Negative photo-sensitive Black resist for LCD color filters
The black matrix plays an important role in increasing contrast and aperture ratio by preventing color mixture of RGB pixels and shielding the backlight. Black resists proposed by NIPPON STEEL Chemical & Material are excellent products that have various functions to meet the various requirements of customers and can be adapted to each customer's process.
Items | Unit | High OD grade | High resistivity grade |
Applications | - | Color filter for large and small/medium-area LCD | |
Viscosity | mPa•s | 2~5 | |
Solid content | % | 10~25 | |
OD | /μm | 3.5~4.5 | 3.0~4.0 |
Volume resistivity | Ω•cm | ≦1010 | ≦1014 |
Resolution | μm | 4~20 | |
Taper angle | ° | 30~90 | |
Roughness | Å | ≦60 | |
PCT adhesion | - | 5B | |
Residue | - | ◎ | |
Chemical resistance | - | ◎ | |
Adhesion | - | 5B | |
Recommend Conditions | VCD:≦100Pa HP:60~90℃, 1min Exposure:30~100 mJ/cm² (Proximity exposure apparatus) Development:KOH or Na₂CO₃ Developer, 23∼26℃, 40~90sec Oven:230℃, 30min |