VC-FILM

Shin-Etsu VC-FILM is louver sheet for view angle control and visibility improvement. VC-FILM is constructed of minute black silicone rubber louvers that are placed in a transparent silicone rubber. Two polycarbonate film is layered on outer surface.

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 car designers 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.

Inquiry

Application

Construction and Principle Effects of VC-Film:

Construction of VC-Film

Standard Pitch:
Standard louver sheet thickness

Standard Pitch:
Narrow View Angle by thick louver sheet

Standard Pitch:
Wide View Angle by thin louver sheet

Narrow Pitch:
Narrow View Angle

Wide Pitch:
Wide View Angle

Basic Property:

Characteristic	Item	Measured value	Unit	Test method
Thermal characteristics	Bend temperature	126.8	ºC	JIS-K-7207
	Coefficient of linear expansion	8.0	10^-5mm/mm/ºC	ASTM-D-696
	Heating contractibility	TD 0.15	%	JIS-K-6735
	Heating contractibility	MD 0.10	%	JIS-K-6735
	Combustivity	SE		FMVSS-302
Mechanical characteristics	Extensive strength	300	kg/cm²	JIS-K-7113
	Stretch	110	%	JIS-K-7113
	Delamination strength	1.3	kg/25mm	JIS-K-6854
Optical characteristics	Ray transmittance	78	%	JIS-K-7105

Environmental Resistance Characteristic:

Test item	Test conditions	Delamination	Discoloration	Change of size	Bending
High temperature test	85ºC (1000 hours)	None	None	-0.03%	None
High temperature test	120ºC (240 hours)		None	-0.04%
Low temperature test	-40ºC (240 hours)		None	None
High temperature-humidity test	60ºC, 95%Rh (240 hours)		None	+0.02%
High temperature-humidity test	80ºC, 95%Rh (240 hours)		None	-0.02%
Weather resistance test	240 hours		None	–
Weather resistance test	480 hours		A little discoloration	–
Thermal shock	-40ºC (1 hours)⇔ 85ºC (1 hours) 100 cycle		None	-0.02%
Heat cycle	85ºC (2 hours)→Room temperature (2 hours) →-40ºC (2 hours)→Room temperature (2 hours) 20 cycle	None	None	-0.02%

VCF1329000-PC200 is used for all tests.
The sample size for environmental resistance test is 100mm x 20mm.
Bending is measured on aluminum board by a gap gauge.
A sunshine-type weather meter is used in weather resistance test.Temperature of black panel is 63ºC.
FMVSS: Federal Motor Vehicle Safety Standards.

VC-FILM Standard Grade:

Type	Part Number	Louver Pitch	View Angle	Maximum Total Light Transmittance Angle
Standard Films	VCF1329000	0.132mm	90°	0°
	VCF1326000		60°
	VCF1324800		48°
	VCF1329015		90°	15°
	VCF1326015		60°
	VCF1324815		48°
	VCF1329025		90°	25°
	VCF1326025		60°
	VCF1324825		48°
	VCF1009000	0.10mm	90°	0°
	VCF1006000		60°
	VCF1004800		48°
Specialized Wide and Narrow View Angle Films	W-VCF16512000	0.165mm	120°	0°
	N-VCF132300	0.132mm	30°
	SN-VCF1002000	0.10mm	20°

VC-Film Light Transmission Graph

View angle based on 132 μm pitch louvers

Technology for High Functionality

Method of applying VC-Film on displays or glass panels
(a) a sticky siliconce layer to stick VC-Film onto a glasspanel. Less layers of material used resulting in less reflections and better brightness and transmission.
(b) a separate adhesibe layer with optional UV blocking filter to protect LCD panels.

Surface Film Options:

Type	Available Functionalities	Thickness Options (mm)
Polycarbonate	Standard, Hard Coat, Anti-Glare, Optically Clear Adhesive, Dirt/Contaminant Resistant, Anti-Microbial	0.10, 0.18, 0.20, 0.30
PET	Standard, Hard Coat, Anti-Glare, Optically Clear Adhesive	0.10, 0.188
Silicone Adhesive	Reusable Adhesion	0.03

Note:
Additional specifications and customized options are available to meet specific application requirements. Please contact one of our locations for design support.
Tailored film dimensions available; Standard full sheet size is 260mm*Louver Direction* x 300mm.
Crossing louver option available for applications with further narrow view angle requirements. (e.g.; 360degree privacy, or various sensitive sensor device applications)