Self-adhesive Electronic Switchable Transparent Film For Glass
Product Description:
STF (Switchable Transparent Film) is also known as PDLC (Polymer
Dispersed Liquid Crystal) film, electronic dimming film, electronic
curtain, etc. It is based on film technology. The rod-shaped polymer liquid
crystalls mixing with prepolymer stick to transparent conductive
base material, so that it simultaneously possesses charateristics
of liquild and crystal. When powering off, polymer comes to the
atomization of disorder. With polymer powering on, it is orderly arranged along with the
direction of the electric field, which enables the film to have transmittance of the light. By controling the electric switch, It can be converted between
transparent and opaque state. 
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Structure:
1. The picture shows the principle diagram of the STF
2. The swichable liquid crystal transparent film is also called an
electronically controlled smart PDLC flm
3. lt consists of two layers of flexible transparent conductive
films (ITO film and PDLC) 
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Available color options:
Principle:
The film is composed of PET film,ITO film,polymer and liquid
crystal molecules. When the film is under off state, the randomly aligned liquid
crystal molecules stay along on the walls of capsule, the reflection of liquid
crystal molecules and polymer makes light disperses then it is opaque. While electricity
supplied, these molecules arrange themselves in a specific direction then
parallel light can pass through the film makes it transparent. 
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Frosted Glass Technique Switchable Transparent Film Parameters:
| Item | Performance / Unit | Testing Method and Standard |
| Rated Voltage | ON | 36/48/60(AC50HZ) | Multimeter |
| Power Consumption | ON | 4-6w/(SQM) | Multi-parameter Electrical Measuring Instruments |
| Total Light Transmittance | ON | ＞83% | GB/T 2410-2008GB/Spectrophotometer |
| OFF | ＞67% | |
| Directional Light Transmittance | ON | ＞80% | GB5137.2-2002 |
| OFF | ＜4% | |
| Haze | ON | ＜4% | GB/T 2410-2008GB/Spectrophotomete |
| OFF | ＞96% | |
| Response Time | ON | ＜40(MS) | Liquid Cystal Mutl-prareter. Measuring Instrument |
| OFF | ＜210(MS) | |
| Operating Temperature | / | -30~70℃ | Constant Temperature and Humidly Testing Machine |
| Lifetime | ON | ＞100000(H) | GB18910.5- 2008 |
FAQ:
1. How does Smart Film work?
In “Off State” when no electrical power is applied on the smart
film the light is absorbed
or scattered and the film looks dark gray or white.
In “On State” the light is transmitted and the film looks
transparent.
2. What is the product lead time?
Lead time for PDLC Film Products is 5-7 days after received
payment.
3. What is the size of your package?
1 roll / 60 square meter 1* box L146*W38*H38CM
4. What are your shipment terms?
We deliver it by air/express transportation.
Customer clear custom, release and deliver to final destination.
5. Is there a MOQ (Minimum of Quantity)?
1 square meter
6. What is the expected life of your products?
Life expectancy is approximately 8-10 years or switch
>2000000times.
Packaging:
Why Upass:
About Upass:
| Upass, founded in 2008, is headquartered in New Materials Industrial Park, Qingpu
District, Shanghai, and has two production bases in Taicang,
Jiangsu and Chenzhou, Hunan. Now as a governing unit of China Building Waterproof Association, a
vice chairman unit of Professional Committee of China Modified
Plastic Association, an enterprise with Triple A credibility in
China Plastic Association, not only assists the development of the
relevant industries, but also upholds the conception of sustainable
development by successive technological innovation. Upass so far
has acquired over 100 of intellectual property rights. |
| UPASS will spare no effort in strengthening and improving the
production, sales networks, service system to return the trust and support of customers, and look forward to
working with you in a win-win future. |
Company History:
Main Fields:
As a new material field, functional films are also one of the top
ten key fields of Made in China 2025,
and the awareness in the market is increasing. Nowadays, functional
films are not only used in the
construction field, special packaging, tape, label, automobile,
electronics and other industries,
but also in the fields of film filtration, air permeable film,
graphene heating film, insulation film,
Anti-UV film, biodegradable materials etc..
UPASS, as a leading domestic deep cultivator of polymer functional
films, has also entered a stage
of rapid development. We believe that UPASS will enter more
application fields of polymer films in
near future.
