Products

Display Materials

Black resist

Negative photo-sensitive Black resist for LCD color filters

Features

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.

  • High light-shielding (High OD)  
  • High resolution  
  • High adhesion strength  
  • Resistivity control  
  • BM shape control  
  • Low reflection  
  • Low temperature curing  
  • Thick film  
Representative Characteristics
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
Pattern shape

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