Optical elastic resin (SVR)

Optical elastic resin Hybrid type for small-to-medium sized FPDs

Hybrid type, combining the advantages of liquid resin and pressure sensitive adhesive. Effective in increasing visibility and contrast of screens on devices such as mobile devices and automotive display devices.

  • Product name
    HSVR330
  • Features
    • Coating on the cover glass and filling air gaps with the resin contributes to realizing thinner panels with improved high visibility and high contrast.
    • While maintaining outstanding optical properties of SVR which has high transmittance and resist color deterioration, Hybrid SVR product design enables the realization of high optical reliability.
    • Film lamination equipment can be utilized for optical lamination since Hybrid SVR is transformed into a PSA during pre-curing process.
    • Since UV-curing shrinkage is progressed before lamination, there is little shrinkage at main bonding. It contributes the suppression of color unevenness.

Specifications

Product name HSVR330
Pre-curing condition [mJ/cm2 ]*1 500 to 1,400
Fully-curing condition [mJ/cm2 ]*2 ≧ 1,000
Viscocity [mPa･s]*3 5,300
Hardness*4 E12
Refractive*5 solid 1.48
Elastic Modulus [Pa] *6 25°C 1.2 x 106
Keeping temperature [°C] 10 to 30
  • *1LED 365nm
  • *2Metal-halide lamp
  • *3Rheo-meter @25°C
  • *4Durometer (Code E)
  • *5Abbe @25°C, D-line（589nm）
  • *6DMS method:@1Hz
Lamination processes
hsvr_tengou.jpg

Application Example

Suitable for small-to-medium sized display panels including air gaps, e.g.for smartphone, tablet PC and notebook PC.


【The optical elastic resin structure for touch panel】

Technical Data

1.Difference between the air gap structure and the optical elastic resin structure

svr1100_data_01.jpg

2.Storage test (Optical properties)

Test Piece Condition

Sheet width：40mm x 70mm x 0.95mm
Coating thickness：0.15mm
Instrument: Ultraviolet-visible-spectrophotometer UV-2450 (SHIMADZU)
[SVR with a thickness of 0.15 mm coated between two glasses (size: 40 x 70mm; thickness: 0.4 mm)]

Test condition Time duration of test
High-temperature storage +95℃ 1000h
High-temperature high-humidity storage 60℃/95%RH 1000h
Low-temperature storage -40℃ 1000h
Heat cycle -40℃⇔85℃ -40℃:30min 85℃:30min 1000cyc

Results

Transparency

HSVR330_1_en.jpg

Hue

Reliability conditions L* a* b* Yellowness index

Haze（％）
Initial condition 99.9 -0.03 0.04 0.26 0.2
High-temperature storage 99.9 -0.08 0.15 0.44 0.2
High-temperature high-humidity storage 99.7 -0.04 0.29 0.73 0.7
Low-temperature storage 99.9 -0.02 0.04 0.27 0.3
Heat cycle 99.9 -0.04 0.14 0.44 0.3

3.Exposure test (Optical properties)

Test Piece Condition

Sheet width：40mm x 70mm x 1 mm

Coating thickness: 0.2mm

Instrument: Ultraviolet-visible-spectrophotometer UV-2450 (SHIMADZU)

Test condition：DIN75220 Z-IN1

[SVR with a thickness of 0.2 mm coated between two glasses (size: 40 x 70 mm; thickness: 0.4 mm)]

Results

Transparency

HSVR330_2_en.jpg

Hue

Reliability conditions L* a* b* Yellowness index

Haze（％）
Initial condition 99.9 -0.07 0.16 0.47 0.2
DIN75220 Z-IN1 99.8 -0.02 0.15 0.47 0.3

caution

Note on the characteristic data given - Data on the characteristics of the products described in this page based on the results of evaluations carried out by the company. This does not guarantee that the characteristics of the product conform with your usage environment. Before use, review the usage conditions based on evaluation data obtained from the equipment and substrates actually used.

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