Upass Material Technology (Shanghai) Co.,Ltd.
Focus on polymer films.
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| PDLC (Polymer Dispersed Liquid Crystal) is a light modulating material comprised of droplets of liquid crystal uniformly dispersed in a transparency or translucency, flexible plastic film. When power off, coming visible light scatters through the PDLC, and the film turns translucent; When power on, coming visible light transmits the PDLC and the Film turns clear. |
| The polymer and the liquid crystals are encapsulated in the PDLC. Both faces of the film are covered with a transparent ITO coating. Both ITO coatings are connected to a flat electrical busbar, which is fixed on one of the edges of the film. When the Film is switched off from its power supply, the liquid crystals are randomly scattered and diffuse light in all directions. In this state PDLC is translucent and prevents both sides from seeing through the Film. |
| By switching on, the crystals line up and re-orientate themselves, turning the Film totally transparent. Switching from non-transparent state to the transparent state is almost instantaneous and can be repeated as often as desired. |
| PDLC (Polymer Dispersed Liquid Crystal) Glass is a kindly laminated glass, which can change to be transparent or non-transparent instant by switching the electricity power by means applying with PDLC film. |
| The picture shows the principle diagram of the STF |
| The swichable liquid crystal transparent film is also called an electronically controlled smart PDLC flm |
| lt consists of two layers of flexible transparent conductive films (ITO film and PDLC) |
Type of products:
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 |
Installation:
Controller: