PDLC smart film-7

APPLICATION:

Large command and control dispatch center office, meeting room, negotiation room, special hospital room. Operating room, villa toilet. Shower room, window of entertainment room. Isolation. screen, etc..

Police station, Courts. Prisons. Jewelry shops. Museums. Bank Windows. Curtain walls. Counter. Isolation, etc.. Large special screen projection screen, etc..

Function:

a) Environmential protection, saving-energy,safety,heat presevation,anti-condensation,High UV resistance function, High infrared reflectivity.

  • Description
  • Inquiry

PDLC smart Film

(1)  Structure diagram: 

      HOMEWELL  Switchable Transparent Glass , refered to as STG, this product is made by the dry process of gluing glass, and the switchable transparent film(STF) is glued between two pieces of glass.The glass meets the national standard for laminated standard.

(2)  Exterior structurel dimensions:

     Glass thickness +0.76mm(EVA)+0.44mm PDLC film+0.76mm(EVA)+ Glass thickness(Glass thickness:3mm-20mm)

     Note: Tpye of glass: super wihte, white, fireproof, Low-E  coated glass etc.

(1)  Opaque statue of STG

     STG is composed of two transparent  ITO film sandwiched between a layer of plastic and liquid crystal. The plastic and liquid crystal include a liquid crystal ball and a polymer, and the liquid molecule director is approximately parallel to the glass substrate , the polymer is surrounded by the liquid crystal micro droplet, the refractive index of the polymer is n,  which is similar to the refractive index of the glass. Approximately 1.5 , an is isotropic substance, the unusual refractive index and the ordinary refractive index of liquid crystals are nand n, respectively. When the vertically incident visible light passes through the glass and transparent ITO film ,it enters the liquid crystal sphere and the polymer interface, due to neis not equal to n, So  scattering occurs and the STG is atomized.

(2)  Transparent STG

When the external electric field is applied, the electric field is formed between the two transparent ITO films, and the liquid crystal molecules are arranged in the direction of the electric field. When the vertically incident visible light passes through the glass and the transparent ITO film, it is incident to the interface between the liquid crystal sphere and the polymer. Because the no direction is perpendicular to the direction of light propagation and no is equal to np, the glass is transparent.

(3)  STG haze

    The main indicator of the advantages and disadvantages of STG glass optical performance is transparency. In fact, it is the haze. The smaller thaze when energized, the better haze when the power is cut off. When the external electric field is applied, the light is perpendicular to the direction of the transparent conductive film. When incident, although nLC is approximately equal to no, However, due to the difference between the nP and no values, scattering still occurs at the interface between liquid crystal droplets and polymers. This is the main reason for the haze.

(4)  View angle

    When the ITO film is power on, Angle between incident light and the vertical direction of the electric control film is not zero(Called the view angle “a”) The direction of light propagation in the STF is not parallel to the liquid crystal molecule pointing vector, as shown in the figure:At the interface between liquid crystal droplets and polymers, the component of light vibrating along the NE direction is scattered, and the larger a is, the more scattered, so the mist increases with the increase of the angle of view, which is the characteristic of the photoelectric effect of liquid crystal.

Raw MaterialGlass: Car float glass( white or pure white)
Thickness3mm-20mm
Homewell Film independent produce PDLC film
EVA Laminated Filmswitchable glass appropriate film
Appropriate Glass GlueProducing area: Japan Toshiba
HOMEWELL Glass Processing ModeIndependent producing  adhesive furnace
ITEM Modeparameter
Optical performanceParallel optical transmittancepower on>75%
power off ≤2%
Visible Light Transmittancepower on≥85%
power off>60%
View anglepower on ≥145º
Hazepower on<4%
power off≥96%
Response timeOff-On<10ms
UV resistance≥99%
Infrared rejectionpower off>20%
Physical property  Working environmental temperature-20℃ ~  +60℃ 
Storage environmental temperature-30℃ ~  +70℃ 
Impact – resistantMeet the GB9656-2003 national standard of laminated glass
Radio resistanceMeet the GB9656-2003 national standard of laminated glass
Moisture resistanceMeet the GB9656-2003 national standard of laminated glass
Moisture and heat resistanceMeet the GB9656-2003 national standard of laminated glass
Moisture and hot resistanceMeet the GB9656-2003 national standard of laminated glass
Shock-proofMeet the GB9656-2003 national standard of laminated glass
Sound proofMeet the GB9656-2003 national standard of laminated glass,up to 40 db
Max size:Width1850mm* length is unlimited
Electrical propertyDrive voltageInput voltageAC220V、AC110V、DC24V、DC12V
 Working voltageAC48V~65V/50Hz
Threshold voltage ≤25V(Smallest power of voltage)
Power consumption≤5W/㎡
Reponse timeTurn on time<10ms
 Turn off time<10ms 
Working lifePower on>80000h
Switch timePower on-off>2000000 times
Insulation resistance>20MΩ
Frequency30Hz~400Hz(The besst working frequency is 50-100 Hz)
Exterior qualityThicknessGlass thickness*2+ 2mm
Scoring<3mm/㎡
Air bubble<1.5mm/㎡
Impurity NO
Chip,unglued,side openingNO
Special power supply performance and technical parametersInput voltageAC220V(AC110V) ±20% 50Hz±5%
Output voltageAC48V~65V±5%
Output power5W-1000W
Output current 0.01A~20A
Environment temperature-20~+60℃(No ice or dew)
Environment humidityLess then 90%RH (No Dew)
Insulation powerAC1800V 1M1N
Insulation resistance20M
Protection functionOver current, over voltage protection, overload protection, overheat protection, moisture protection and fire protection
Standby modelow voltage control, high voltage, long term standby
 Remote modelSwitchesmanual control, remote control, manual remote control linkage control, infrared control, light control, voice control, WIFI, Bluetooth, computer, tablet, mobile phone APP control, etc
Controlindependent research and development of manual control, remote control.
FMself developed automatic tracking FM controller for optical glass; (solving the screen flashing problem)

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