View Control Film
View Control Film or VC-Film is an optical louver film of alternating optical clear silicone rubber and black silicone rubber layers. Sheets of such alternating layers are positioned between PC or PET films to provide an optical filter.
The highly transparent silicone rubber allows VC-Film to be used in following functional applications:
- privacy filter for ATM machine, POS terminals, notebook computers and smart phones
Positioning the View Control Film in front of a display panel with louvers vertical, the film will make the image on the display visible for the user of the display only. People positioned besides the user will not see information on the display. For tablet style handheld devices, filters can be stacked as cross filter to shut lights in all directions.
- anti-reflection filter for backlit functions in cars
Positioning the View Control Film in front of a display panel or on a backlit switch, the film will allow the light to go towards the driver. The backlight will be blocked in the direction of the windshield or side windows and stop the mirror image while driving at night. The View Control Film allows cardesigners to freely position functions in the car without requiring special designed roofs to avoid reflections.
- light shutter for industrial light sensors
To avoid disturbing effects of light curtains mounted on industrial machines, View Control Film can block light in undesirable directions.
VC-Film is made to custom design and requirements although certain view angles and louver angles are standardized to ease the supply. Special view angles, louver angles, louver colors and constructions are available on request.
VC-Film can be used on top of touchpanels based on capacity touch reading.
|Privacy filter on cash dispenser||Privacy filter on notebook PC's|| Privacy filter on Smartphone, Tablet
or POS terminal
|Anti-reflection filter on automotive displays||Light curtain shutter for industrial machines|
|Thermal characteristics||Bending temperature||ºC||126.8||JIS-K7207|
|Linear expansion coefficient||mm/min/ºC||8.0 • 10-5||ASTM-D-696|
|Heating contractibillity||%|| TD 0.15
|Mechanical characteristic||Extensive strength||kg/cm2||300||JIS-K-7113|
|Delamination strength||kg/ 25 mm||1.3||JIS-K-6854|
|Optical charactereistics||Ray transmission||%||78||JIS-K7105|
* FMVSS: Federal Motor Vehicle Safety Standards
|Test conditions||Delamination||discoloration|| Dimensional
| Temperature test
||85°C (1000 hrs)|| None
|120°C (240 hrs)||-0.04%|
|-40°C (240 hrs)||None|
| High temperature /
high humidity test
|60°C/95%RH (240 hrs)||+0.02%|
|80°C/95%RH (240 hrs)||-0.02%|
|Weather resistance test||240 hrs||None||-|
|480 hrs||Little discoloration||-|
|Thermal shock|| -40°C (1 hr)↔85°C (1 hr)
|Heat cycle|| 85°C (2hrs) →
room T (2hrs) →
-40°C (2hrs) →
room T (2hrs) ↑
* Sample used for all tests: VC-908500
When the VC-Film is positioned at a small distance from the display, uneven brightness or Newton Rings may occur. To avoid this effect, a mat finish treatment can be applied to the support film.
Every item or numerical value indicated herein is measured by Shin-Etsu and out of guarantee.
Graphs and curves are for reference only. Actual results are up to the design.
The quality of the assembled VC-Film is out of guarantee.
Please make sure to review the purpose and conditions of use and practice your own tests.
Industrial ownership like patent doesn't guarantee the usage of the VC-Film.