Product

LCD Materials

LCD Materials

Black Matrix Resist

Applications

 

Black Matrix is arranged in the form of stripes, grids or mosaics between color patterns of the Red, Green and Blue pixel arrays in the color filter.

Our product is designed for high light-shielding properties to increase the contrast ratio of LCD panels. Additionally, black matrix is deposited to a glass substrate to prevent leakage of backlight and color mixing from adjacent pixel formations, which also enhances contrast. 

  • Process Method: Negative Photoresist process  (Same as Color Resists)

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    Features
    1. High Optical Density
    2. High Coating Uniformity, High Sensitivity, Excellent Adhesion, Excellent Developing Performance
    3. Excellent Reliability in Thermal, Light, and Chemical Resistance
    4. Greater durability

              New: Black Matrix Resist for LCD Panel with High Resolution 

        

    Specifications
    Product Name ABK406X ABK408X Remarks
    Field of Application Full High Definition Ultra High Definition  
    Features Standard High Resolution
    High Resistance    		  
    Viscosity cP 3.0 ± 0.5 3.0 ± 0.5  
    Non-Volatile Matter Content % 13~15 13~15  
    Line Width μm 8 ~ 30 4 ~ 8  
    Remaining Film Thickness % 75 ~ 85 75 ~ 85 After PB/ Before PB
    (PB: 230°C x 20min)
    Process Conditions Soft-Bake °C; sec 70~120; 90 70~120; 90  
    Exposure Energy mJ / cm2 45 ~ 100 45 ~ 100  
    Development   KOH / Buffer KOH / Buffer At 23°C ~ 25°C
    Hard-Bake °C; min 230; 20 230; 20  
    Optical Density / μm 4.4 ~ 4.0 4.4 ~ 3.0  
    Surface Resistivity Ω / □ 1 x 108 > 1 x 1014  
    Chemical Resistance IPA (ODBefore-ODAfter)/ μm < 0.1 < 0.1 After 25°C Dip 5min +120°C x 2mins
    NMP
    γ-buthyrolactone
    PGME
    DPGME    		 (ODBefore-ODAfter)/ μm < 0.1 < 0.1 After 25°C Dip 5min + 240°C x 15mins
    Weight Loss % < 3 < 3 After PB + 230°C x 60min by TGA
    Pressure Cook Test   5B 5B After PB + 230°C x 180min 121°C, 2atm, RH 100% for 24hr by cross-cut test