3450 results about "Reflective layer" patented technology

The invention discloses an electronic paper display panel, a control method of the electronic paper display panel and a display device, and mainly relates to the technical field of display. An electrophoretic reflection layer is arranged on an array substrate and located on the side, facing a filtering substrate, of the array substrate; the controllable light reflection layer, the color filter layer and the common electrode layer are sequentially arranged on the side, facing the array substrate, of the filter substrate. The color filter layer comprises a plurality of sub color resistors, the sub color resistors are arranged at intervals, a color resistor gap is defined between every two adjacent sub color resistors, and the projection of the controllable light reflection layer is located on the color resistor gaps; the common electrode layer can control light irradiated to the controllable light reflecting layer to be reflected to the side, away from the light filtering substrate, of the color light filtering layer or to the side, away from the color light filtering layer, of the light filtering substrate, and through the design, the brightness of the electronic paper display panel can be improved when the light intensity of the external environment is weak; when the light intensity of the external environment is high, the display problem of bright lines is avoided.

According to the laminated glass and the vehicle provided by the embodiment of the invention, the permeability of the function display area of the laminated glass can be improved, and the visibility of a driver and passengers to the outside of the vehicle is improved. The laminated glass comprises a glass substrate and a functional reflecting layer, the functional reflecting layer is arranged on the inner surface of the glass substrate, and the functional reflecting layer is used for reflecting projection light; the laminated glass comprises a visual field area, a function display area and a shielding area, the function display area comprises at least one semitransparent display area located between the visual field area and the shielding area, and the total visible light transmittance of the semitransparent display area is smaller than or equal to the total visible light transmittance of the visual field area and larger than the total visible light transmittance of the shielding area. The semitransparent display area is at least partially covered by the functional reflecting layer; the main image transmittance TL1 of the part, covered by the functional reflecting layer, of the semitransparent display area is larger than or equal to 10%; the ratio TT12 of the main image transmissivity TL1 and the auxiliary image transmissivity TL2 of the part, covered by the functional reflection layer, of the semitransparent display area is larger than or equal to 15.

A lighting keyboard is provided with at least one keyswitch, a support plate and a backlight module. The keyswitch has a keycap and a switch under the keycap. The support plate connects beneath the keycap by a support mechanism. The backlight module has a lighting board configured underneath the support plate and corresponding to the keycap. The lighting board includes a board, a first reflective layer and a circuit layer. The circuit layer is disposed on the board and includes a concave-convex structure and circuit traces. The circuit traces electrically connects with a light emitting unit. The first reflective layer covers the concave-convex structure to form microstructure regions.

An optical communication receiver system for a mobile platform includes: a surface having an entrance aperture for entry of an optical communication signal from a remote source; an optical receiver to receive the optical communication signal through the entrance aperture; a reflective layer over at least a portion of the surface to at least partially reflect an alignment beam that is substantially coincident with the optical communication signal; a camera positioned to detect the reflected alignment beam; a processor to determine alignment information about the alignment beam relative to the entrance aperture based on the reflected alignment beam detected by the camera; and a transmitter to transmit the alignment information to the remote source to enable the remote source to center the optical communication signal in the entrance aperture.

The invention belongs to the technical field of radar wave-absorbing materials, and discloses a double-sided wave-absorbing broadband stealth composite material and a preparation method thereof. The broadband stealth composite material with the double-sided wave absorbing function comprises a non-metal-based composite material body and at least five metamaterial layers arranged in the thickness direction of the non-metal-based composite material body at intervals. The number of the metamaterial layers is an odd number, a middle metamaterial layer is arranged in the middle of the metamaterial layers in the thickness direction, and the rest metamaterial layers are symmetrically distributed on the two sides of the middle metamaterial layer; the metamaterial layer comprises conductive pattern units which are periodically arranged; the relative dielectric constant of the nonmetal-based composite material body is not greater than 10; the double-sided wave-absorbing broadband stealth composite material does not contain a metal reflecting layer. When electromagnetic waves with the frequency of 1-18 GHz vertically enter the material, the transmissivity of the material is small (smaller than-13 dB, namely smaller than 5%), and meanwhile the material has low reflectivity in a broadband. And the preparation method is simple to operate and easy to realize large-scale production.

The invention is suitable for the technical field of filters, and particularly relates to a manufacturing method of a linear gradient filter and the linear gradient filter. The manufacturing method of the linear gradient filter comprises the following steps that a glass wafer serves as a substrate, and a lower reflecting layer is plated on the surface of the glass wafer; wherein the lower reflecting layer is formed by alternately stacking a plurality of layers of low-refractive-index materials and a plurality of layers of high-refractive-index materials; coating a resonant cavity layer on one side, far away from the glass wafer, of the lower reflecting layer through a stepped coating process; plating a reflecting layer on one side, far away from the glass wafer, of the resonant cavity layer; and plating a long-wave-pass layer on one side, far away from the glass wafer, of the upper reflecting layer and in an area larger than the central wavelength to obtain the linear gradient filter. Compared with the prior art, the linear gradient filter provided by the invention is better in spectral resolution in a long wave band, smaller in energy difference of channels, excellent in wavelength selection performance and capable of being applied to spectrum applications such as a miniaturized infrared spectrometer and the like.

Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, an optical device includes: a first optically diffractive component including a first diffractive structure configured to diffract a first color of light having a first incident angle at a first diffracted angle, a second optically diffractive component including a second diffractive structure configured to diffract a second color of light having a second incident angle at a second diffracted angle, a first reflective layer configured to totally reflect the first color of light having the first incident angle and transmit the second color of light, and a second reflective layer configured to totally reflect the second color of light having the second incident angle. The first reflective layer is between the first and second diffractive structures, and the second diffractive structure is between the first and second reflective layers.

A display panel includes: a backplane, a plurality of light-emitting devices, a plurality of connecting leads, a first protective layer and a reflective layer. The backplane includes a first main surface, a second main surface, and a plurality of side surfaces. At least one side surface is as a selected side surface. The plurality of light-emitting devices are disposed on the second main surface and are electrically connected to the plurality of connecting leads. The plurality of connecting leads are disposed on the first main surface, the selected side surface and the second main surface, and each connecting lead sequentially passes through the selected side surface and the second main surface from the first main surface. The first protective layer covers the plurality of connecting leads. The reflective layer includes at least a first portion covering a portion of the first protective layer on the selected side surface.

Provided in the present invention are a flip light-emitting diode chip and a manufacturing method therefor. The flip light-emitting diode chip comprises: a substrate, and an N-type semiconductor layer, an active light-emitting layer, a P-type semiconductor layer, a current spreading layer, a first insulating layer, a Bragg reflective layer, a metal reflective layer, a second insulating layer, a connection metal layer, a third insulating layer and a bonding pad layer, which are sequentially deposited on the substrate. The connection metal layer comprises a reflective layer and a protective layer that are sequentially arranged from bottom to top; the protective layer comprises a first protective parent layer, a second protective parent layer, and a third protective parent layer that are sequentially arranged from bottom to top, the second protective parent layer comprising n first protective sublayers and second protective sublayers that are periodically stacked, the thicknesses of the first protective sublayers gradually increasing linearly toward the third insulating layer, and the thicknesses of the second protective sublayers gradually decreasing linearly toward the third insulating layer.

The invention provides laminated glass and a vehicle. The laminated glass comprises a first glass plate, an infrared reflection layer, a bonding layer, a second glass plate and a low-transmittance heat insulation layer, the low-transmittance heat insulation layer comprises at least one absorption function layer, the visible light transmittance TL1 of the laminated glass is smaller than or equal to 15%, and the transmission index A of the laminated glass is larger than or equal to 10; the transmission index A is equal to TL1 / (TE * TL3). According to the laminated glass, the low-transmittance heat insulation layer and the infrared reflection layer are used together, so that the laminated glass has relatively low visible light transmittance TL1 and relatively low radiance e, and a deep colored PVB (Polyvinyl Butyral) membrane in related technologies can be omitted, so that the laminated glass has the effects of low cost, simplicity in manufacturing and production and privacy protection; the laminated glass has a lower total solar transmittance TTS, so that the laminated glass can better block heat, a sunshade curtain in a vehicle is omitted, and a larger height space in the vehicle is obtained.

Disclosed in the present application is a photovoltaic module, comprising a reflective structure and a cell string group, wherein the cell string group comprises a plurality of cells, and gaps are provided between the plurality of cells; the orthographic projection of the reflective structure on the cell string group covers at least the gaps between the plurality of cells; and the reflective structure comprises a first reflective layer close to the cells and a second reflective layer stacked with the first reflective layer, the first reflective layer is an organic material layer, and the second reflective layer is a metal layer. In the embodiments of the present application, infrared light that is incident on the gaps between the plurality of cells is reflected by the reflective structure, so that the infrared light re-irradiates the cells, enabling the cells to absorb the infrared light and convert same into electric energy, thereby increasing the generation power of the photovoltaic module.

The invention belongs to the technical field of endoscope lens coating, and particularly relates to a lens shading film and a preparation method and application thereof. The lens shading film provided by the invention comprises a light absorbing layer, a reflecting layer and an insulating layer which are sequentially stacked, and the light absorbing layer is in contact with a lens substrate; the material of the light absorption layer comprises chromium and / or titanium; the reflecting layer is made of aluminum and / or silver; and the material of the insulating layer comprises silicon dioxide and / or silicon nitride. Through the synergistic effect of the light absorbing layer and the reflecting layer, the shading performance of the shading film is remarkably improved; meanwhile, the lens shading film provided by the invention is good in uniformity, so that the optical performance of the lens is not influenced. In conclusion, the coating of the lens shading film provided by the invention is compact and uniform and can reach over OD2, and the average transmittance in a visible light range has a shading effect of less than 0.5%.

A method of forming an optical device is provided that can include forming a backside reflector layer, and forming a cladding layer on the backside reflector layer. The method can further include forming a grating layer on the cladding layer, and forming a receiving reflector layer on the cladding layer. The receiving reflector layer can include an opening for receiving optical signal to at least the grating layer.

The invention relates to the field of photovoltaic technology, in particular to a photovoltaic backboard, a preparation method thereof and a photovoltaic module. The photovoltaic backboard comprises a base material layer, a structural layer, a reflecting layer and an inner coating, the base material layer is provided with a bearing surface, the bearing surface is provided with a plurality of battery areas and light reflecting areas, and the light reflecting areas are arranged around the battery areas; the structural layer is located on the reflective area, the structural layer is provided with a plurality of raised structures which are arranged in a directional mode, and the included angle between the arrangement direction of the raised structures and the edge of the reflective area is an acute angle; the reflecting layer covers the structural layer; and the inner coating layer is positioned on the battery region. The photovoltaic backboard provided by the invention is high in energy utilization rate, effectively improves the durability and reliability of the photovoltaic backboard, and facilitates the improvement of the power generation efficiency and the service life of a photovoltaic module.

The invention discloses double-sided coated glass. The double-sided coated glass comprises a glass substrate, a first coating layer and a second coating layer, the first coating layer is arranged on the front surface of the glass substrate and sequentially comprises an anti-reflection layer, an ultraviolet reflection layer and a middle and far infrared reflection layer from the glass substrate to the outside; the second coating layer is arranged on the back surface of the glass substrate and sequentially comprises a near-infrared reflecting layer and a near-infrared regulation and control layer from the glass substrate to the outside, and the near-infrared regulation and control layer is used for regulating and controlling the reflectivity of the near-infrared reflecting layer. According to the design of the front anti-reflection layer of the double-sided coated glass, through continuous transition of the particle size and the refractive index of nanoparticles, the visible light reflectivity is remarkably reduced, and the light transmittance of the glass is kept to be 85% or above and is superior to that of existing composite coated glass; meanwhile, through the synergistic effect of the ultraviolet reflecting layer, the middle and far infrared reflecting layer and the back near-infrared reflecting layer, the ultraviolet blocking rate can be larger than or equal to 99%, the comprehensive infrared blocking rate can be larger than or equal to 90%, and the technical problem that light transmission and blocking performance of traditional glass are difficult to consider at the same time is solved.

According to the preparation method of the radiation refrigeration colored coating with the double-layer structure, absorption of ultraviolet-visible light and near-infrared wave bands is weakened and heat input is reduced by adding a fluorescent coloring agent and designing a bottom strong reflection layer, meanwhile, high-emissivity varnish is selected as a base material, and the radiation refrigeration colored coating with the double-layer structure is prepared. The capability of emitting heat outwards in a middle and far infrared radiation form of the colored paint is improved, so that efficient cooling is realized. The prepared colored paint has rich and adjustable colors and a good cooling effect, is low in cost and simple in process, and is expected to be applied to the fields of high-power electronic equipment, building heat management and the like.

The embodiment of the invention provides head-up display glass, a head-up display system and a vehicle, which can improve the permeability of a function display area of the head-up display glass and improve the visibility of a driver and passengers to the outside of the vehicle. The head-up display glass comprises a glass substrate and a functional reflecting layer, wherein the functional reflecting layer is arranged on the inner surface of the glass substrate; the head-up display glass comprises a visual field area, a function display area and a shielding area, the function display area comprises at least one semitransparent display area located between the visual field area and the shielding area, and the total visible light transmittance of the semitransparent display area is smaller than or equal to the total visible light transmittance of the visual field area and larger than the total visible light transmittance of the shielding area. At least part of the semitransparent display area is covered by the functional reflecting layer, the part, covered by the functional reflecting layer, of the semitransparent display area has main image reflectivity RL1 and auxiliary image reflectivity RL2 for projection light, and the ratio RR12 of the main image reflectivity RL1 to the auxiliary image reflectivity RL2 is larger than or equal to 15.

Provided is a glass laminate including: a glass substrate having a first main surface and a second main surface; a functional layer provided on a first main surface side of the glass substrate and including any one or more selected from an antiglare layer, an antireflection layer, and an anti-finger print layer; and a colored layer provided on a second main surface side of the glass substrate and having a hole-formed region in which a plurality of holes are provided, in which the hole-formed region has a visible light transmittance of 5% or more.

The invention belongs to the field of micro-nano structures, and relates to a preparation method of a nano needle tip split ring 3D structure periodic array. According to the method, after a reflecting layer and a supporting layer are deposited on a silicon substrate, polystyrene nanospheres are self-assembled, the volume of the nanospheres is reduced through reactive ion etching, then two times of inclined magnetron sputtering are carried out, deposited precious metal is etched through a reactive ion etching machine, and the silicon substrate is obtained. And removing the nanosphere mask to obtain the 3D structure periodic array of the nanotip split ring. The method has the characteristics of simple preparation process, good uniformity, high order degree and strong repeatability, and has wide application potential in the fields of SERS (Surface Enhanced Raman Scattering), photoelectric property detection and the like.

The invention provides a cavity type bulk acoustic wave resonator with a Bragg reflection layer and a preparation method of the cavity type bulk acoustic wave resonator, and relates to the technical field of bulk acoustic wave resonator manufacturing. The cavity type bulk acoustic wave resonator comprises a first substrate, a bottom electrode, a piezoelectric layer and a top electrode which are stacked in sequence, a cavity is formed between the first substrate and the bottom electrode, the cavity is provided with a plurality of supporting columns, the supporting columns are used for supporting the first substrate and the bottom electrode, each supporting column comprises at least one group of Bragg reflection layers, and the Bragg reflection layers are arranged in the cavity. The Bragg reflection layer is formed by stacking a first material and a second material, and the acoustic impedance of the first material is higher than that of the second material. The cavity type bulk acoustic wave resonator solves the problem that an existing supporting column increases energy loss, and it is guaranteed that the resonator has more stable performance while the electromechanical coupling coefficient is increased.

A periscopic camera module disclosed by the present invention comprises a lens assembly, a motor assembly and an imaging module, the imaging module comprises an optical filter, a photosensitive chip and a circuit board, the periscopic camera module is characterized in that the periscopic camera module further comprises a reflector, the reflector is obliquely arranged behind the lens assembly, and a first preset angle is formed between the reflector and the optical axis of the lens; the imaging module is arranged in the reflecting light path direction of the reflecting mirror, the reflecting mirror comprises a substrate and a reflecting layer on the surface of the substrate, the reflecting layer can be configured to be a film coating medium, the film coating medium is an aluminum film or a silver film, the reflectivity of the film coating medium is larger than 95%, and the reflection bandwidth is the wavelength of 420-680 nm. According to the periscopic camera module provided by the invention, a prism can be replaced by the reflecting mirror, so that the module cost is reduced, and meanwhile, the effect of reducing the thickness of the module is achieved by utilizing the special angle arrangement of the reflecting mirror and the photosensitive chip.

A high-resolution display device is provided. The display device includes a plurality of light-emitting units emitting light of different colors. The light-emitting unit has a microcavity structure and intensifies light with a specific wavelength. In the light-emitting units emitting light of different colors, reflective layers with different thicknesses are formed, an insulating layer is formed to cover the reflective layers, and then a top surface of the insulating layer is subjected to planarization treatment, whereby an insulating layer with different thicknesses is formed. After that, light-emitting elements emitting white light are formed over the planarized top surface of the insulating layer to overlap with the respective reflective layers, whereby the light-emitting units that intensify different colors due to different optical path lengths are separately formed.

A display device includes a reflective layer disposed on a substrate and reflecting light, a color conversion layer disposed on the reflective layer, absorbing light in a first wavelength band, and emitting light in a second wavelength band, a light emitting element layer disposed on the color conversion layer, and emitting the light in the first wavelength band, and a resonant filter disposed on the light emitting element layer, reflecting the light in the first wavelength band, and transmitting the light in the second wavelength band. The resonant filter includes a plurality of semi-transmission layers and at least one medium layer disposed between the semi-transmission layers.

A method of manufacturing a display device includes forming a substrate, a pixel circuit layer, and a light emitting element layer, forming a first bank on the light emitting element layer, forming a reflective layer on the first bank, forming a second bank and a scattering layer on the reflective layer, forming a first color conversion layer and a second color conversion layer in an area surrounded by the second bank on the substrate, and forming a first capping layer on the scattering layer, the first color conversion layer, and the second color conversion layer. The reflective layer is formed through an etching process using a positive type photosensitive emulsion.

The invention provides a coding metasurface with terahertz wave absorption and reflection functions and application, the coding metasurface comprises at least one coding unit arranged in an array, each coding unit comprises a top resonance layer, a dielectric layer and a metal reflection layer which are sequentially arranged from top to bottom, the top resonance layer comprises a graphene resonance layer and a vanadium dioxide phase change layer, and the dielectric layer comprises a dielectric layer and a metal reflection layer. The graphene resonance layer comprises square graphene, the vanadium dioxide phase change layer comprises a square vanadium dioxide outer ring and a vanadium dioxide strip embedded in the vanadium dioxide outer ring, the vanadium dioxide outer ring is located on the inner side of the graphene, and the square edge of the vanadium dioxide outer ring and the square edge of the graphene are arranged in parallel at an interval; wherein the vanadium dioxide strips are arranged at the diagonal positions of the vanadium dioxide outer ring and are arranged at intervals with the vanadium dioxide outer ring, the advantages of a wave-absorbing metasurface and a reflection coding metasurface are integrated, and the signal generation power of 6G communication is greatly optimized.

Provided are a polariton device, a polariton system, a method of manufacturing the polariton device, and a method of controlling the polariton device. The polariton device includes a cavity including a gain layer including a ferroic material that undergoes a phase transition into an asymmetrical crystal structure in response to an external stimulus, an upper reflective layer formed on top of the cavity, a lower reflective layer formed below the cavity, and a Rabi frequency controller configured to control a Rabi frequency of the polariton device by providing a stimulus to the gain layer.

The invention discloses a carbon-based metamaterial electromagnetic wave absorber and a preparation method and application thereof. The wave absorbing body adopts a three-layer composite structure, wherein the bottom layer is a copper plate reflecting layer; the lower layer is of a honeycomb-like structure and is formed by periodically arranging regular octagons and square hollow quadrangular prisms externally connected with the regular octagons, and the adjustable wave absorbing frequency band is achieved by adjusting and controlling the width and height of the hollow cores; the upper layer is of a pointed cone structure, and the impedance matching characteristic is enhanced by optimizing the vertex angle of the regular rectangular pyramid. The wave absorber is made of photosensitive resin, based on the photocuring 3D printing technology, honeycomb-like and pointed cone structures are printed step by step and bonded and combined, and high-precision forming is achieved in combination with parameterized regulation and control. The wave absorber has the advantages of light weight, broadband absorption and adjustable mechanical performance, can be applied to the fields of EMI shielding of electronic equipment, military radar stealth, high-frequency communication protection, electromagnetic environment protection and the like, and remarkably improves the electromagnetic wave absorption and shielding effectiveness through the metamaterial structure design and a multi-component cooperative loss mechanism.

The invention provides a circuit board and a preparation method thereof and a backlight module, the circuit board comprises a circuit substrate and a reflection structure layer located on at least one surface of the circuit substrate, the reflection structure layer covers at least part of a circuit layer of the circuit substrate, and the reflection structure layer comprises a reflection layer and a transparent photosensitive layer which are sequentially stacked on the surface of the circuit substrate. The transparent photosensitive layer covers the outer surface of the reflecting layer. According to the circuit board provided by the invention, the surface of the reflecting layer is coated with the transparent photosensitive layer, so that the thickness and flatness of the reflecting structure layer can be improved, the light loss is reduced, the reflectivity and uniformity are improved, the lateral erosion size of the bottom of the reflecting layer is reduced, and the risk that the reflecting layer falls off is reduced.

The invention relates to the technical field of semiconductor display devices, in particular to an anti-crosstalk light-emitting unit and a manufacturing method thereof, and a color filter layer, a color conversion layer, an inorganic layer, a chip bonding layer, a micro light-emitting diode layer and a reflecting layer are sequentially manufactured on a substrate from bottom to top; manufacturing a discontinuous filling layer on the surface of the reflecting layer; and grinding, thinning, cutting and splitting the substrate to form an independent discrete device. By arranging the reflecting layer covering the packaging structure and the discontinuous chip bonding layer, light emitted by the quantum dots and the micro light-emitting diodes is reflected by the reflecting layer, light crosstalk between the display units is avoided, the reflected light excites the quantum dots again to emit light, and the light efficiency is improved. The chip bonding layer and the filling and leveling layer are arranged discontinuously, so that substrate warping caused by temperature rise and fall during large-size manufacturing is avoided. When cutting and splitting are carried out, the laser technology frequency can be reduced, the mass production efficiency can be improved, and the organic layer is removed, so that the occurrence of the double-cell problem of the chip can be greatly avoided.