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30results about How to "Change transparency" patented technology

Car windshield adopting liquid crystal display technology

InactiveCN104950491AChange transparencyChange color filter effectNon-linear opticsEngineeringPolarizer
The invention discloses a car windshield adopting a liquid crystal display technology, and particularly discloses a car windshield capable of adjusting transparency and improving driving safety. The car windshield is structurally characterized by comprising upper-layer glass, a common electrode, an upper polarizer, liquid crystal molecules, a three-primary-color color filter, a lower polarizer, a pixel electrode and lower-layer glass; the realization principle of the windshield is as follows: coating films on inner sides of the upper-layer glass and the lower-layer glass form the common electrode and the pixel electrode which are stacked together, the polarizers, the liquid crystal molecules and the three-primary-color color filter are mounted in an interlayer, the liquid crystal molecules are arranged regularly and are in the transparent state, driving voltage is applied to the common electrode and the pixel electrode, an electric field changes the arrangement direction of the liquid crystal molecules to shield light rays, so that the transparency of the windshield is controlled, when a color filter area corresponding to a certain pixel is controlled, the color of the windshield in the area can be changed, and when multiple pixel combinations are driven simultaneously, display graphs or character information can be produced.
Owner:梁金水

Filtering ventilation device

Provided is a filtering ventilation device. The filtering ventilation device is composed of an air inlet, a pre-filter, an induced draft fan, a post-filter, an air channel, a drainage channel, an air outlet, a controller and a shell frame. The air channel is composed of an inner wall face, an outer wall face, a track and a storage box. The inner wall face and the outer wall face are made of transparent materials or materials of which the transparency and the color can be changed and can stretch out and draw back, so that the inner wall face and the outer wall face are conveniently folded when not used, and natural ventilation of a door and a window is restored. The filtering ventilation device can be installed on a windowsill, a door frame or at an outer wall opening, so that outdoor fresh air is introduced through the door, the window or the opening, or indoor air is directly introduced; multiple filtering ventilation devices can also be combined to introduce the outdoor fresh air and the indoor air at the same time, accordingly, the air is filtered and purified, and indoor ventilation and air changing are achieved; the filtering ventilation device has the characteristics that installing is easy and convenient, indoor daylighting is not affected, natural ventilation is not affected, and redecoration is not needed; the problem that a ventilation system is inconveniently installed in a building with an open hole formed in the outer wall is effectively solved, and the filtering ventilation device is particularly suitable for being used in built buildings.
Owner:安二铭

Transparent heat-insulating ultraviolet-proof film based on photonic quasicrystal material and preparation method thereof

The invention belongs to the technical field of film materials, and particularly relates to a transparent heat-insulating ultraviolet-proof composite film based on a photonic quasicrystal material anda preparation method thereof. The composite film structurally comprises a transparent substrate layer, a photonic quasicrystal functional film layer, an adhesive layer and a strippable layer. The photonic quasicrystal film is formed by polymer core-shell-structure microspheres and infrared functional nanoparticles which are stacked and arranged in a three-dimensional ordered manner through a specific process, and has adjustable structure color and optical transparency. The structural color, transparency and ultraviolet and infrared blocking wavelength range of the film can be regulated and controlled by regulating and controlling the core microsphere size, shell thickness and refractive index of the core-shell-structure microspheres and the content of the infrared functional nanoparticles, and the ultraviolet and infrared blocking efficiency can also be controlled by regulating and controlling the thickness. The formed composite film is high in ultraviolet light blocking efficiency, high in visible light transmittance and good in heat insulation effect, and has excellent transparent heat insulation ultraviolet-proof and explosion-proof performance, and can be used for energy conservation, explosion prevention and the like of automobiles and building glass.
Owner:FUDAN UNIV +1

Transparent heat-insulating and anti-ultraviolet film based on photonic quasicrystal material and preparation method thereof

The invention belongs to the technical field of film materials, in particular to a transparent heat-insulating and anti-ultraviolet composite film based on a photonic quasi-crystal material and a preparation method thereof. The structure of the composite film of the present invention is a transparent base layer, a photonic quasicrystal functional film layer, an adhesive layer and a peelable layer; the photonic quasicrystal film is composed of polymer core-shell structure microspheres arranged in three-dimensional order and infrared functional nanoparticles through Formed by a specific process, it has tunable structural color and optical transparency. The structural color, transparency, and wavelength range of blocking ultraviolet and infrared can be adjusted by adjusting the core microsphere size, shell thickness, refractive index and infrared functional nanoparticle content of the core-shell microspheres, and the ultraviolet and infrared wavelength range can also be controlled by adjusting the thickness. and infrared blocking efficiency. The composite film formed by the invention has high ultraviolet light blocking efficiency, high visible light transmittance, good heat insulation effect, excellent transparent heat insulation, anti-ultraviolet and explosion-proof performance; it can be used for energy-saving and explosion-proof of automobiles and architectural glass.
Owner:FUDAN UNIV +1

Method for producing electronic mica via artificial synthesis

The invention discloses a method for producing electronic mica via artificial synthesis. The method includes the steps of selecting a furnace poured from corundum as a calcining furnace, arranging a graphite electrode in the furnace, and coating an anti-sticking coating layer on the inner surface of the furnace; adding five raw materials including calcined talcum, heavy magnesium oxide, potassium fluosilicate, aluminum oxide and potassium carbonate for the mica into the calcining furnace, and simultaneously paving a flat layer of high-quality mica plates on the middle layer of the furnace; heating to calcine the raw materials at the furnace temperature ranging from 1600 DEG C to 1800 DEG C, calcining with constant temperature firstly and then calcining with reducing-temperature secondarily; and finally naturally cooling the raw materials in the furnace. The method for producing the electronic mica is simple in process, high in production efficiency, low in cost and labor-saving, the prepared product is high in quality and grade, and automatic production of the electronic mica is realized. Besides, the electronic mica produced can be widely utilized in the fields such as electronic industry, military industry and aviation industry, can bring good economic benefits and social benefits, and has broad marketing prospect.
Owner:JIANGYIN YOUJIA PEARLESCENT MICA

A highly sensitive mechanically regulated smart window film and its preparation method

ActiveCN111522151BHighly Sensitive Mechanical Stretch Visible Light Transparency AdjustabilitySensitive Mechanical Stretching Visible Light Transparency AdjustabilityOptical filtersPretreated surfacesMicrosphereUltraviolet lights
The invention relates to a highly sensitive mechanically regulated intelligent window film and a preparation method thereof. The film is a double-layer composite structure, and one layer is a visible light transparency control layer, which is composed of an elastic polymer (transparency greater than or equal to 80%) and nano Microspheres (the surface of which is coated with low-binding molecular materials); the other layer is an ultraviolet and / or infrared blocking layer, which is composed of elastic polymers and ultraviolet light blocking particles and / or infrared light blocking particles uniformly dispersed therein (average The particle size is 10-100nm); the preparation method is: first spray the low-binding molecular material and nano-microsphere dispersion liquid on the substrate, and then pour the curing agent and the elastic material doped with ultraviolet light blocking particles and / or infrared light blocking particles. The mixture of polymer prepolymers is post-cured and finally stripped. The method of the invention is simple, and the prepared film not only has ultraviolet and / or infrared blocking ability, but also has highly sensitive mechanical stretching visible light transparency adjustment ability.
Owner:DONGHUA UNIV
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