Optical Clear Resin OCR Adhesives for Optical Bonding

OCR is an adhesive used for optical bonding

Optical bonding is the process which attaches the touch panel (or other filter or overlay) directly to the LCD, filling the small air gap between the front of the display and the back of the touch panel

The use of OCR enhances the brightness, contrast ratio and reliability of the display

OCR Adhesives


High Contrast Ratio Low Reflection High Reliability

Benefits of OCR - High Contrast

With optical bonding, light transmission is increased thus improving the brightness and clarity of display.

Compare OCR vs Air-gap - High Contrast

Benefits of OCR - Low Reflection

The use of OCR reduces light-reflection resulting in higher visibility under bright ambient environments.

Compare OCR vs Air-gap - Low Reflection

Benefits of OCR - High Reliability

With optical bonding, the light-transmission is increased, resulting in a clearer brightness and display

Compare OCR vs Air-gap - High Reliability

Optically Clear Resin OCR for High Refractive Glass (R>1.7) Low TI <2.5 , Low Reflectance (<0.1%)

Items Test Methods Units 3T-MRH-LD Remarks
Appearance Visual -- Black Viscous Liquid @Un-cured state
Curing Rate FT-IR % >95 @400mW, 60sec
Viscosity Rheometer cPs 4,000 ±300 @25°C/ 10rpm
TI Rheometer Constant 2.2 ±0.1
Ball Tack Texture analyzer gf <1
Cross-cut Test Cross-cutter Class 5B @Soda glass
Transmittance-Glass side Spectro- % <0.1 @Agilent Cary-5000
Transmittance-Coating side Spectro- % <0.1 @Agilent Cary-5000
Reflectance-Glass side Spectro- photometer % @Agilent Cary-5000
Reflectance -coating side Spectro- photometer % <0.1 @Agilent Cary-5000
Transmittance-Glass side Spectro- % <0.1 @Olympus USPM-RU-W @RI 1.8 glass
Transmittance-Coating side Spectro- % <0.1 @Olympus USPM-RU-W @RI 1.8 glass
Reflectance-Glass side Spectro- photometer % <0.9 @Olympus USPM-RU-W @RI 1.8 glass
Reflectance -coating side Spectro- photometer % @Olympus USPM-RU-W