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OCR Overview


General type OCR

    Introduction to General type OCR

Application - Attaching cover glass to display panel.
- Attaching touch panel to display panel.
- Assembling touch panel
Bonding
process
• General dispensing method

Advantages - Simple process and equipment for laminating and attachment.
- Low process costs.

    Specification of General type OCR

▣ MRH1420: Low shrinkage, low modulus, low dielectric constant and good reliability(b*).
▣ MRH0960, 0975: Fast curing speed, high adhesive shear stress, low dielectric constant and good reliability(b*).

Item Unit Reliability Test MRH1420 MRH0960 MRH0975
Curing dosage
(@80%, LED 365nm)
mJ/㎠ - 500 <200 <200
Curing dosage
(@95%, LED 365nm)
mJ/㎠ - 1000 300 <200
Viscosity cPs - 4,500 6,200 4,200
Refractive index - - 1.47 1.47 1.48
Density g/cc - 0.8709 0.9043 0.9652
Density g/cc - 0.8814 0.9342 1.0035
Shrinkage % - 1.19 3.2 3.8
Hardness - - 28 63 88
Modulus Pa - 8.5E+03 1.1E+05 3.8E+06
Adhesive Shear Stress
(Glass to Glass)
Pa 0 hr 5.0E+05 1.2E+06 1.2E+07
500 hrs 4.5E+05 1.6E+06 1.1E+07
CTE(above Tg) ppm 0 hr 570 730 550
500 hrs 770 660 660
Dielectric constant - 0 hr 2.89 2.76 2.52
500 hrs 2.96 2.99 2.48
Refractive index - - 1.47 1.48 1.48
transmittance % 0 hr 99.6 99.7 99.9
500 hrs 98.9 99.5 99.9
Haze % 0 hr 0.05 0.02 0.01
500 hrs 0.04 0.21 0.01
Yellowish - 0 hr 0.02 0.20 0.15
500 hrs 0.16 0.28 0.20