Product

Touch Panel Materials

Touch Panel Materials

Optical Clear Resin

Applications

 

 

 

OCR (Optical clear resin) or LOCA (Liquid optically clear adhesive) is an optical grade adhesive applied to surfaces for lamination of cover lenses, touch panels, and LCD modules which are found on many everyday devices and situations, ranging from GPS systems, tablet PCs, medical devices, to industrial controls, and smartphones.

 

OCR can improve visibility and contrast ratio by reducing reflected light between the interfaces of cover lenses, touch panels and LCMs. OCR also maintains a high level of transparency, and is integral in strengthening other components and structures within a device, while impeding moisture from entering a device, or dew from forming within device panels or near touch screens. Furthermore, OCR has several advantages in its usage – these being that it can be used in hard-to-hard surface adhesion situations, and has properties that allow it to be reworked or repaired if necessary, especially when applied to large surface areas in automated situations, or for smaller repair situations.

 

From conventional glass to glass (G to G) lamination to one glass solution (OGS) process, Daxin has developed various types of OCR subjected to manufacturing process change. In addition, Daxin is providing advanced OCR product for car application which requires extreme conditions for environmental reliability tests.

Features
  1. Easy to Rework
  2. Excellent Adhesion on Cover Lens, Touch Panels and LCMs
  3. Fast Cure Properties: Low UV Dosage
  4. High Levels of Transmittance
  5. Superior Reliability: Non-Yellowing, Low Haze

 

Specifications
Product Name OCRP101 OCRP198 OCRP380 OCRG313 Remarks
Field of Application G/G OGS/LCM & GFF/LCM & On-cell Hybrid gel  
Features
  • High Adhesion
  • 365nm ~ 420nm UV or UV-LED Operation
  • Low Modulus for Mura Free
  • Easy to rework
  • High Dielectric Constant
  • Low Modulus for Mura Free
  • Easy to rework
  • Low Dielectric Constant
  • High Adhesion
  • High Viscosity
  
Viscosity cP 3,600 2,900 2,300 5000 Brook Field Viscometer at 25.0±1.0°C, CPE 51
Non-Volatile Matter Content % 100 100 100 100  
Exposure Energy mJ/cm2 3,000 ~ 5,000 2,000 ~ 5,000 2,000 ~ 5,000 Pre cure 500~3000
Main Cure 2000~5000		 Depend on UV lamp
‎Operating Environment
(Yellow/ White Light)		   Yellow  
Transmittance at 400nm % > 95 0.3mm Thickness G/G
Yellow Index   0.39 0.55 0.45 0.50 0.3mm Thickness G/G
Haze % 0.28 0.26 0.28 0.27 0.3mm Thickness G/G
Tensile Adhesion KPa 330 210 330* 800* *0.15mm ThicknessG/G
Elongation % 550 2,500 3,000 3,000  
Elastic Modulus KPa 30 2.3 0.8 3.3  
Dielectric Constant - 5.2 5.2 3.0 3.0 1MHz