30results about How to "Play a role in scattering" patented technology

The invention aims at providing a back plate structure, a backlight module, a display device, and a manufacturing method of the back plate structure, wherein the back plate structure comprises a bottom surface plate and four side surface plates located at the periphery of the bottom surface plate, the edge of one reserved side surface plate of the four side surface plates is bent and extends towards the center of the bottom surface plate to form a bending part, the bending part comprises an inner surface, one surface of the inner surface faces the bottom surface plate, a reflection layer is arranged on the inner surface of the bending part, and a light scattering layer is also arranged on the reflection layer. According to the back plate structure, the backlight module, the display device, and the manufacturing method of the back plate structure, the Hot-spot phenomenon of the backlight module is improved, and the display quality of the display device is improved.

The invention discloses a functional layer coating for a projection screen. The coating is prepared from the following components in parts by weight: 50-55 parts of aqueous styrene-acrylic emulsion, 12-20 parts of noble metal nanoparticles, 10-18 parts of ceramic powder, 3-6 parts of a plasticizer and 2-5 parts of a stiffening agent. The projection screen comprises a base layer as well as a glassfiber layer, a protective layer and a functional layer which are arranged on one side of the base layer sequentially. The projection screen has high optical efficiency, high screen brightness, 1.04 brightness gain and wide viewing angle range. Besides, the projection screen is provided with the protective layer for blocking water vapor, and can be prevented from damage caused by moisture.

The invention discloses a display panel and a display device. The display panel comprises an array substrate and a color film substrate disposed oppositely, and a light sensing recognition component comprising at least one light sensing unit and at least one upper collimating hole, wherein the array substrate comprises a first substrate and light sensing units located on one side of the first substrate close to the color film substrate, the upper collimating holes are disposed on the color film substrate and have dislocations with the light sensing units in the direction perpendicular to the display panel; and the display panel further comprises an astigmatism structure, which is located on one side of the first substrate away from the light sensing units. The display panel and a display device provided by the invention can ensure the sensitivity of the detection of the light sensing units and the accuracy of the detection of fingerprint recognition.

A method of forming a semiconductor structure comprises the steps of providing a semiconductor substrate, the surface of which is provided with a plurality of separate fin portions; forming an isolation layer on the surface of the semiconductor substrate, the surface of the isolation being lower than top surfaces of the fin portions and partially covering side walls of the fin portions; forming an diffusion preventing layer on the surfaces of the fin portions; then, carrying out diffusion preventing ion implantation for the fin portions; and afterwards, carrying out N-type or P-type doped ion implantation for the fin portions. The method can improve the performance of the formed semiconductor structure.

The invention relates to a formation method for a long-distance excitation fluorescence conversion film for an LED lamp. The formation method comprises the following steps: separately making an aluminum oxide suspension, an organic binder and a surfactant including an ammonium salt having carboxylic acid polymer; mixing the prepared aluminum oxide suspension, the organic binder and the surfactant, and adding a fluorescent powder with the required type and quantity to the mixture; fully stirring the mixture to obtain a fluorescent powder syrup; covering the inner wall of a lamp cover of the lamp with the prepared fluorescent powder syrup; and enabling the fluorescence conversion film to be formed in the inner wall of the lamp cover when the fluorescent powder syrup is dried. Compared with the existing long-distance excitation fluorescence conversion technology for the LED, the formation method for the long-distance excitation fluorescence conversion film for the LED lamp is simpler in technology, and capable of greatly simplifying the packaging process of the LED device and improving the production efficiency; and meanwhile, the light extraction efficiency, the spatial chromatic uniformity, the stability and the reliability of the LED lamp product are dramatically improved.

Disclosed is an organic electroluminescent device. The organic electroluminescent device comprises an outer scattering layer, a glass substrate, a polymer layer, an anode, a cavity injecting layer, a cavity transmission layer, a luminescent layer, an electron transmission layer, an electron injecting layer and a cathode which are successively stacked. The material of the outer scattering layer comprises a titanium dioxide film formed at the back surface of the glass substrate and a calcium carbonate film formed on the surface of the titanium dioxide film. The material of the polymer layer is a mixture of poly (3,4-ethylenedioxythiophene) and polybenzenesulfonate. The material of the anode is selected from at least one from silver, aluminum, platinum and gold. The organic electroluminescent device is quite high in light emission efficiency. The invention also provides a preparation method of an organic electroluminescent device.

The invention discloses a display panel, a manufacturing method thereof and a display device. The display panel comprises a light-emitting device layer; and a light extraction thin film ; the light extraction thin film is arranged on the light emitting side of the light emitting device layer, and the light extraction thin film comprises nanofibers; compared with the prior art, the display panel has the advantages that the light extraction film is arranged on the light emitting side of the light emitting device layer, and the light extraction film comprises the nanofibers, so that the scattering effect on the light emitted by the light emitting device layer can be achieved, the microcavity effect and the total reflection effect in the display panel can be effectively reduced, and the light extraction efficiency of the display panel is further improved; and the visual angle of the display panel is improved.

The invention relates to a backlight module. The backlight module comprises a light diffusion module and strip light source modules, wherein according to the light diffusion module, a panel, multiplefrustums, lamp holes and lamp slots are integrally formed, the frustums are arranged at the rear side of the panel, distributed uniformly in an array and protrude backwards, top faces of the frustumsface backwards, each lamp hole is formed in the center of the top face of one frustum, and protective walls arranged on the periphery of each row or each column of lamp holes define the lamp slots; the strip light source modules are installed in the lamp slots; the light diffusion module is made of a light-scattering material; light sources arranged in the same way as each row or each column of lamp holes are arranged on each strip light source module; the strip light source modules are fixedly installed in the lamp slots, and the light sources are placed in the lamp holes; and the strip lightsource modules are connected through wires or electrically connected through a circuit board. Since the frustums are uniformly distributed in an array at the rear side of the panel, obvious dark lines cannot be generated after mutual splicing, and the splicing requirement of large-area light-emitting display equipment is met.

The invention discloses a lamp capable of forming three-dimensional shadow. The lamp comprises a lamp holder, a light source, a lampshade and a power supply, the lamp holder is connected with the lampshade, the light source is arranged on the lamp holder and is electrically connected with the power supply, an opening area is defined above the light source through the lampshade, a light guide plateis contained in the opening area, the light guide plate adopts ultra-white solar photovoltaic glass, moreover, an assembly distance is defined relative to the light source, and the light source formsthe three-dimensional shadow through the light guide plate under the assembly distance. The ultra-white solar photovoltaic glass is adopted, and the assembly distance and the arrangement distance between adjacent LED chips are adjusted so that the light source can create different three-dimensional shadow effects, such as a ball shape, a jellyfish shape, a snowflake shape, a circular pipe shape,a quadrilateral and the like, thus, the lamp capable of forming the three-dimensional shadow can obtain various three-dimensional shadow effects so that more requirements of a user can be met, and theapplicability is greatly improved.

The invention relates to a luminous module. The luminous module comprises a light diffusion module and a lamp panel, wherein the light diffusion module is integrally composed of a panel, a plurality of frustum bodies, lamp holes, protective edges and frustum stairs, the multiple frustum bodies are evenly and fully distributed on the rear side of the panel according to an array and protrude backwards, the top faces of the frustum bodies face backwards, the lamp holes are formed in the center parts of the frustum bodies, the protective edges surround all the lamp holes and protrude backwards, each circle of frustum stair is located on the inner side of the corresponding protective edge and is flushed with the top face of the corresponding frustum body, and the lamp panel is mounted within the range of the protective edges; light sources which are arrayed the same as the lamp holes are arranged on the lamp panel; and the lamp panel is fixedly mounted within the range of the protective edges, and thus the light sources are placed in the lamp holes. From the technical features, it can be seen that the multiple frustum bodies on the rear side face of the panel are of an integrated structure which is arrayed according to the array and evenly and fully distributed, any part for shielding light does not exist in the periphery, and thus shadowless splicing can be achieved; and the luminous module is suitable for backlight sources of large display equipment, large lamp boxes and large-area lighting facilities.

The invention relates to a solar cell. The solar cell is based on a dye-sensitized solar cell, the dye-sensitized solar cell comprises a photoanode, a counter electrode and an electrolyte, the structure of the photoanode comprises an FTO substrate, a tungsten oxide nanowire and a glass beads from outside to inside, the tungsten oxide nanowire is grown on a surface of the FTO substrate, the glass beads are coated at the bottom of the tungsten oxide nanowire, the tungsten oxide nanowire has a core-shell structure, the core is the tungsten oxide nanowire, the shell is titanium oxide, the counter electrode comprises an FTO substrate, a light reflection layer and a Pt catalyst layer from outside to inside, and anti-freezing agent normal propyl alcohol is added to the electrolyte.

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic module based on a diffractive optical element. The photovoltaic module comprises a heat conductive substrate, wherein a plurality of gallium arsenide chips are arranged on the heat conductive substrate, and the plurality of gallium arsenide chips are sequentially connected in series to form a conversion module, and a diffractive optical element covers the conversion module; and the heat conductive substrate is provided with the positive and negative binding posts of the conversion module. The photovoltaic module based on a diffractive optical element is reasonable in structure, the gallium arsenide chips are connected in series and combined in a special arrangement mode to maximize utilization of the laser energy while maintaining the consistency of each chip and improve the stability of the gallium arsenide photovoltaic module; and moreover, the diffractive optical element (DOE) plated with an antireflection film with the wavelength of 800nm-850nm is adopted to replace a traditional glass cover plate on the photovoltaic chip, wherein a quartz material in the central region is doped with metal elements to scatter the laser light to have the uniform light intensity effect and improve the actual photoelectric conversion efficiency of the gallium arsenide chips.