Ｒ

Maximum size
has increased to
1200mm×3000mm-Switchable Film

OFFOpaqueWith the flick of a switch, it can transform between atransparent state and an opaque state instantaneously,
thus protecting your privacy.

ONTransparent

Seiko Electric CO., LTD.

What is Switchable Film (SILF)?
It is a film that can transform between a transparent state andan opaque state instantaneously with the flick of a switch (ON/OFF).

ＯＮＯＮＯＦＦON

OFF

Transparent

OpaqueONOFF

Transparent

OpaqueWith the flick of a switch privacy is obtained instantly!

Transparent

OpaqueONTransparent

VisibleOFFOpaquePrivate■ The transparent state gives you a wide open space.
■ Show off your conference room, etc.
■ Transforms any meeting, etc.

■ When there is an important meeting or vital customers come, opaquestate renders privacy.
■ Available when you want to concentrate, protect privacy, or just need adiscreet place.
■ Blinds or curtains are no longer needed.

Categories of SILF
① Sticking type

② Glass type

Electrical Wiring

Electrical Wiring

電源 Film (SILF)

電源ONON

Adhesive layer
ガラス・アクリFilm (SILF)

ガラス・アクリルル
AC50V

AC50V

電源applied to existing glass.

Exclusive
Power Supply
Unit

Glass

アクリ
AC100VThe film can beONガラス・電源

Exclusive
Power Supply
Unit

The film is protected

ONby glass on both sides.

ル電源

ONガラス・アクリ
AC100V
Glass

ル電源

ONガラス・ガラス・ア

アクリル

クリル

Features of SILF

HighWith the new research and development of our switchable film, a higher
Permeability permeability has been reached when compared to our former product.
Low-Voltage Rated voltage is AC50V.
It is extremely safe because the voltage is lower than 50V. Electricity fees areDrive
one yen per square meter per day (when kept on for eight hours).
Designed for The products are designed for 10 years after
being implemented.
10 years
Its reliability is proved by accelerated degradation test that is 10 years equivalent.

VisionImprovement

Made inJapan

Clarity through the newly developed switchable film has improved
dramatically. Transparency has been vastly improved whenviewed from an angle.

Our Seiko brand assures you of a safe design.
From manufacturing to the final quality check, it is all done in our clean room.
Quality management and after service are also reliable.

Application Example of SILF
Electrical wiring is necessary

Electrical Wiring

電源 Film (SILF)

ON

Adhesive layer

ガラス・アクリル

AC50V

Stick on

電源

It is possible to install it by sticking it to the existing glass.

ONWhat about using it as a replacement of blinds or decorative films?

Exclusive
Power Supply
Unit

ガラス・アクGlass

1

リル
AC100V

2

Possible to cut or hollow the film

Films are possible to be cut and hollowed freely.

電源ONOffice Factory
工場

Educational Medical
facilities
facilitiesラ
ガス・ア
クリル

3

Possible to apply to a curved surface

Possible to apply on cylinders with a radius of more than 2000 mm.

4Improved strength

Even when the glass is broken, the chance of theglass shattering is decreased.
<Example of application to the existing glass at an office>＊Film is applied to the inner side of the existing glass
5

UV Cut-off Function

When opaque, SILF can cut off 96% of ultraviolet rays.
6

Thermal insulation

When opaque, SILF can cut off 9% of infrared rays.
7

Alleviates direct sunshine

When opaque, SILF scatters sunshine, therefore the light is softened.

Please leave theconstruction work to us
Confirmation of the present conditionMaking an installation plan

Quotation
Installation

Example of using it as digital signage

Rear projection

Projected image clearly casts on switchable films
applied on the glass or acrylic materials.

Projector
SILF (Switchable film)
Glass

1

Advertise your products utilizing a muti-tiered system
Create a dynamic presentation that reveals the real product after the sales pitch

Switchable film is applied to
one side of the glass.

Project images or videos todisplay a crystal clear message.

When the presentation is concluded,
simply flip the switch, and the diorama
on the other side of the glass will show.

2

It is possible to apply the film on glass without making the space between them stand out
In the case of applying film to glass that is bigger than the largest size of SILF (1200 mm×3000 mm),it’s possible to align multiple films with each other and minimize the effects of the gap by utilizing a
special kind of caulking compound.

OfficePossible to install the film in part of laminated glass as well
How about installing film only on the necessary part of the glass?
office h3000
Switchable
film

Switchable film inthe middle▽ＦＬ＊Vertical frames are necessary when the film is applied in the middle of the glass.

Concerning the safety of sticking type of SILF
Firstly,
When applying voltage to the film, there is a danger of getting an electric shock. However, the safety of the sticking type isguaranteed by the following two points:① Low-voltage drive (50V)② The exclusive power supply unit is equipped with the function of ＊1earth-fault protection.
＊１

Earth-fault: Generally speaking, it refers to a short circuit. There are risks of electric shock, etc.

① Concerning safety of 50V (contact condition and contact voltage)
When a person standing on the earth touches a live part and gets an electric shock,we call the voltage that applies to the human body as contact voltage.
Depending on various contact condition (including its possibility that it may occur),allowable contact voltage is different.
Diagram of contact condition and voltage reference value
Guide of protection from earth leakage in low voltage circuit by The Japan Electric Association

Contact Condition

Objective electric circuit

・When most part of human body is inside the water・Electrical circuits set near bath tube, swimming pool, orType 1

places where human have easy access to, such as waterpool, pond, paddy, etc.

Type 2・When someone gets seriously wet

・Electrical circuits in the places described in type 1 or tunnel

・When someone touches electrical equipment or

construction site where humidity and vapor is seriously

tools made by metal at all times.

accumulated.
・Electrical circuits where people have easy access to metal

Contact
voltagelower than
2.5V

lower than
25V

made electrical equipment, tools and buildings

Type 3

Except for type 1 and type 2, there is a highElectrical circuits that human beings have easy access to (forpossibility that the risk of electric voltage applies toexample, electric tools which may easily be touched bysomeone at all times.

human beings, in such general places like houses, factories,

＊2

lower
than 50Voffices, etc.)

Type 4*2

・Under condition of type 3, it is only a little bit

・Places where people have no access to (for example, electric

dangerous even if contact voltage applies.

tools set in high places or places hidden in the general

・When there is no access to contact voltage.

places like houses, factories, offices, etc.)

No limitlower than 50V

The guide of protection from earth leakage in low voltage circuit by The Japan Electric Association
designates that under 50V is safe in a general environment.
50V voltage has been applied to telecommunication lines, and has long been used.

② Concerning the earth-fault protection (protection from an electric shock)Degree of danger when getting an electric shock is decided by ＊3the current value that goes through thehuman body and the duration.
If large current goes through someone, it is very dangerous even within a short amount of time.
On the other hand, a small current is not that dangerous going through the human body for a long time.
It is said that the boundary is 20mA/s. (From The Japan Electric Association homepage)

＊3

the current value that goes through the human body

The exclusive power supply unit is implemented with a very safe
1mA

protective function that can detect an electric leakage of 1mA(minimum detective current), and disconnect connection
within 0.5 second.
How can one feel about a current of 1mA?
minimum detective current just a slight pain

(For reference)no danger to people

From Kanto Electrical Safety Inspection Association homepage

5 mA
Significantly painful
start value of danger

10 mA
Pain that can not bebeared

50 mA

20 mA
boundary of muscle
control

Lose consciousness,abnormality of heartand respiratory system

100 mA
Symptoms of cardiopulmonaryarrest arise. Life is threatenedStandard Wiring Diagram

Size: W168mm×D150mm×H36mm
Weight: 800g
The unit can control six films at most with a total area dimension of up to 10m2
Power電源ﾕﾆｯﾄ
SupplyUnit

Power Supply Unit

The construction marked within the red
dotted line is not our responsibility.
EarthPower strip
From primary
power source(AC 100V)

Ceiling

SILF
GlassSILF
GlassSILF
Glass
Switch on the wallFL

Developmental background of liquid crystal technology

九州大学

Fukuoka Industrial Technology Center
From the year of 1997 to the year of 2002, research and development regarding
polymer network liquid crystal (PNLC) had been conducted withindustrial-academic-government cooperation.
※This product is developed by applying the research and technology of Kyushu University (former Kajiyama Research Laboratory )Operation
principles of SILF
※本製品は、九州大学（旧梶山研究室）の研究技術を応用し開発したものです。
Switch off

Plastic film

LiquidcrystalPolymer
Transparent electrodeSwitch on

Plastic film

LiquidcrystalPolymer
Transparent electrodeＲ-Delivery record of switchable film

Office Partitions
Daiichikigyo Corporation
Head office of SEGA TOYSTokyo branch of Minato Bank
Head office of System Create
KYOCERA Communication Systems Co., Ltd.
3hands Inc.
Ginza Stefany Inc.

Nikkei Publishing Inc.
Shunan System Sangyo
JA Kyosai
TACHI-S
NETZ TOYOTA AICHI
Nomura Research InstituteHitachi Systems, Ltd.
Experimental Center for Social System Technologies The Bank of Fukuoka
Osaka branch of SQUARE ENIX CO., LTD.
A complex facility of Fujimino City
Cosmo Koki Co., Ltd.
Niigata TOYO
Fukuoka Chamber of Commerce and Industry
JA HYOGO SHINREN
FUJIPACIFIC MUSIC Inc.
Katahira Campus of Tohoku University
NEC Fielding, Ltd.
Metal OneMarubeni Mates Ltd.
Japan Concentrix KK
Gifu Kato Manufacturing Corporation
Nihon Cyuou Jyuhan
Anicom Insurance, Inc.
Head office of IBM
Shinagawa building of NTT Docomo
Nomura Real Estate Development
Rix Corporation
Nanwa Energy
Fujitsu Kyushu System Services
Fujitsu FSAS

Visitor Routes
Customer

PurposeDesignConstruction

Kubara Honke GroupA kitchen and tasting room forcustomers to enjoy new products

Shimizu Corporation

Shimizu Corporation

Kyushu Electric Power Co., Inc.

Visitor routes

West Japan Engineering
Consultants, Inc.

Taisei Corporation

UNIADEX-An exhibition room in Shanghai

Dentsu Inc.

Dentsu Inc.

Partition for a luxury foreign
vehicleCornes Motors

Cornes Motors

Mitsui & Co. Global Logistics, Ltd. Visitor routes for the data center
Mitsubishi Corporation
Cuebic Inc.

Hospitals
HospitalPurposeDesignConstruction

Self Defense Forces Fukuoka
Hospital

CT room-Shimizu Corporation

Japanese Red Cross Kumamoto
Hospital

Treatment room

Naito Architects

Shimizu CorporationKyushu University Hospital

MRI room-Kajima Corporation

Imamura Hospital

ICU room-Kajima Corporation

SUNAGAWA Medical Clinic

Guidance office and hallway-Okamura Corporation

Yamaguchi Prefecture Grand
Medical Center

ICU room-Shimizu Corporation

Morioka Yuai Hospital

Operation room

Taisei Corporation

Taisei Corporation

This is only a partial list.
Reproduction or appropriation of this list without permission is prohibited.

Office Renovation

ONOFF
OpaqueTransparent

Reasons for adopting SILF
Type of film
To hide sight, SILF is installed afterwards on bottom
four levels of glass block partitions in the office.

Sticking typeInstallation

The partition for the executive room which three executives use is all glass
partition, through which employees were able to see inside the room

On the existing glass
Installation Location

before SILF was installed.
To hide sight, options including installing electric blinds had been considered;

Office (Executive room)

however, adoption of SILF was decided finally in order to show or not show theLocation

room inside with the flick of a switch.

TokyoIn this instance, it took roughly one day to install SILF.

© 2018 Seiko Electric Co.Ltd., All rights reserved.
This page may not be reproduced in whole or in part without permission.

Bathrooms of a hotel

ONOFF
OpaqueTransparent

Reasons for adopting SILF
SILF is adopted on the glass partition of the bathroom
working as a shutter when the guest is taking the bath.

Type of film

Sticking typeInstallation
On recently installed glass

When SILF is transparent, with light coming in, guests are able toenjoy the wide open space.

Installation Location

When the guest is taking the bath, SILF is turned off so that it works as aBathrooms of a hotel

shutter.
SILF makes it possible to change the sight in a flash, replacing curtains
and blinds.

Location
Kyoto© 2018 Seiko Electric Co.Ltd., All rights reserved.
This page may not be reproduced in whole or in part without permission.

Hospital (newly installed)

ONOFF
OpaqueTransparent

Reasons for adopting SILF
Doctors and nurses somtimes needed to confer with each otherType of film

when simultaneous treatments were being administered.

Glass type

With the flick of a switch, the glass changes from an opaque to atransparent state.

Installation
On recently installed glass

Glass type of SILF is installed on the partitions between two emergency rooms
next to each other.

Installation Location

It is adopted for the convenience of communication among medical staff,patients, and their families.

An emergency roomin a hospitalCompared to curtains and blinds, SILF is easy to clean and dust does not build up.

Location
Kumamoto Prefecture© 2018 Seiko Electric Co.Ltd., All rights reserved.
This page may not be reproduced in whole or in part without permission.

Hospital Renovation

ONOFF
OpaqueTransparent

Reasons for adopting SILF
SILF is installed on site on a kind of special glass (lead glass)which is used for shielding the radiation from CT.

Type of film
Sticking typeInstallation

As there is no changing room for patients to change before getting a CT scan,patients have to change in the CT room. In order to protect patients’ privacy,
SILF is adopted so that it can be turned off while the patient is changing.

On the existing glass

Installation Location
CT room in a Self-defense
Forces Hospital
Location
Fukuoka Prefecture© 2018 Seiko Electric Co.Ltd., All rights reserved.
This page may not be reproduced in whole or in part without permission.

Office (newly installed)

ONOFF
OpaqueTransparent

Reasons for adopting SILF

Type of film

Because the whole floor consists of meeting rooms

Sticking typeconnected to each other, SILF has been adopted in order toshowcase its expanded deep space.

Installation
On recently installed glass

The whole floor contains a lot of curved designs.
When trying to implement SILF on the curved glass of a modern meeting

Installation Location

room, it is applied from the inner side of the room utilizing the features ofOffice meeting room

the film.
By applying the switchable film on the glass door, the meeting rooms leave

Tokyoa refined and sophisticated impression.

OFFOpaqueLocation

OFFOpaque

OFFOpaqueONONONTransparent

Transparent

Transparent© 2018 Seiko Electric Co.Ltd., All rights reserved.
This page may not be reproduced in whole or in part without permission.

Partition for owner-driver cars

ONOFF
OpaqueTransparent

Reasons for adopting SILF
SILF is installed on the partition between the front and backcompartments of a luxury foreign vehicle, which enables thepartition to change from a transparent to an opaque state toprotect passengers’ privacy.

Type of filmSticking typeInstallation
Inside the car

Since the plastic partition is slightly curved, SILF is installed on therelatively flat part. When necessary, it is turned on to protect privacy of thepassengers who sit in the back seats.
Because SILF uses an independent power source instead of on-vehicle power

Installation Location
On the partition between
front and back compartments
for a luxury vehicle

supply, a remote control is used to change the state of it.

Location

This stylish function makes the luxury car stand out even more.

Tokyo© 2018 Seiko Electric Co.Ltd., All rights reserved.
This page may not be reproduced in whole or in part without permission.

■ Product Specification


Rated Value

Item

Rated

Unit

Remarks

Drive Voltage

AC50 ±10%

V

Effective value(Sine wave or square wave)

Thickness
Maximum dimensions
Power consumption
Response speed

Optical characteristics



0.26mm (only film)
1200mm×3000mm (we accept orders by millimeters)
4W/m2
Less than one second when turned ON or OFF※The values in the chart are representative values of the state of the film. They are not guaranteed values.

Function

ItemValueTransparency(power: ON)

Turbidity (Haze)
Parallel Transparent Ratio

Opacity(power: OFF)

Parallel Transparent Ratio

4.7%
85.6%
97.0%
2.4%

Electrification durability

Turbidity (Haze)

Remarks
Measuring device: NDH 5000

JIS-K7136
JIS-K7361-1
compliants

Passed the switching test of 3 million times■ Precautions for use

The product is for inside use.

If SILF is reinstalled or reused after being removed it will not be guaranteed.

When power is ON (transparency state), the property of transparency may deteriorate with the angle of view as seen from the front.

Please use in an environment where there is no water, vapor, or fire.

Contact by sharp or hard things can cause trouble.

SILF is an electric product. Therefore be careful not to spray water or liquid cleaner directly on the film when cleaning it.
It will cause scratches or cuts when wiping it dry, please use a slightly wet cloth etc. to wipe it lightly.

Be careful not to use conductive caulking compound.

After SILF is delivered to the customer, requests for size modification (cutting work and dimension adjustment) are not accepted.

Make sure to connect a ground wire to the exclusive power supply unit (power source).

Please contact our company when there is anything not clear in regards to usage.

■ Warrenty

One year after delivery and installation<Manufacturer><For inquiries>

Seiko Electric CO., LTD.
7-25, Toko 2 chome, Hakata-ku, Fukuoka-city,Fukuoka prefecture, 812-0008 Japan
Tel +81-92-473-8831(representative)
http://www.seiko-denki.co.jp
2018.1© 2018 Seiko Electric Co.Ltd., All rights reserved. This page may not be reproduced in whole or in part without permission.