Электронный поплавок vidrio smart pdlc от 3 мм до 10 мм, умная витражная пленка для творчества, строительства и промышленного стекла, стекло roflumilast 3 m (1600542411239)

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The dimming principle of smart glass is as follows:
In the natural state, the liquid crystal molecules inside it are arranged randomly, the refractive index of liquid crystal is
lower than that of the polymer outside, and the incident light scatters in the polymer and is milky white, that is, opaque. After
electrification, the droplets in the dispersed liquid crystal polymer are rearranged, and the liquid crystal changes from disorder
to directional order, so that the refractive index of the liquid crystal is the same as that of the polymer, and the incident
light can completely pass through, forming a transparent state.




(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 np , 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 ne and 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 ne is not equal to ne ,
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.






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