248results about How to "Improve transmittance" patented technology

Aspects of the present invention relate to methods and systems for a head-worn computer with a content display where the head-worn computer can be changed from an augmented reality system where there is relatively high see-through transmission through the display to a virtual reality system where the is no or relatively little see-through transmission through the display.

Devices and methods are provided for minimizing the startup delay of streaming media transmitted through networks. A server maintains a portion of the media stream stored in an initial burst transmit buffer. At startup, the stored portion is transmitted at a rate higher than the fixed frame rate, exploiting the full available bandwidth. The initial burst transmission fills up the de-jitter receive buffer at the receiving end faster, thereby shortening the startup delay. Then transmission is switched to the regular rate, from the regular buffer. A variable bit rate transcoder is optionally used for the data of the initial transmission. The transcoder diminishes the size of these frames, so they can be transmitted faster. This shortens the start up delay even more. A receiver has a buffer with a fill level started at a value lower than a final value. This triggers the beginning of play out faster, further shortening the delay time. The fill level of the de-jitter receive buffer is then gradually increased to a desired final value.

The invention relates to the field of display and provides a fingerprint identification panel, a full screen fingerprint identification method and a display apparatus. The fingerprint identification panel comprises a substrate, at least one point light source arranged on the substrate and used for emitting signal light, and a light-sensitive sensor arranged on the substrate and used for receivingthe signal light reflected by a finger to identify a fingerprint. According to the fingerprint identification panel, on one hand, the light intensity of the signal light emitted by the point light source can be improved; on the other hand, the light-sensitive sensor is arranged in a display layer of the fingerprint identification panel, so that the transmittance rate of the signal light can be improved; and therefore, high-definition full screen fingerprint identification is realized.

Disclosed is an organic light emitting device which includes a substrate; an encapsulation substrate, an organic light emitting unit interposed between the substrate and the encapsulation substrate. A water vapor absorption material-containing transparent sealant layer covers the organic light emitting unit. The sealant layer includes a transparent sealant having a water vapor transmission rate (WVTR) of about 20 g/m 2 day or less and a water vapor absorption material having an average particle size of about 100 nm or less.

The present invention relates to a metal microgrid transparent electrode and fabricating method thereof. The transparent electrode has orderly metal microgrid structure whose thickness is 10-50nm, width is 140-800 nm and aperture is 1-6 mum. The fabricating method is that: assembling single-layer colloid crystal template by monodisperse polystyrene microspheres, depositing metal in template sews by magnetron sputtering technique, and the sputtering time is 5-10 minutes; at last, eliminating single-layer colloid crystal template by ultrasonic washing of organic solvent for 20-30 minutes and the said transparent electrode is gained. The metal microgrid structure of transparent electrode has high light transmittance, low resistance and low cost, has widely usage in optoelectronic device, photodetector and semiconductor irradiance. The fabricating method of present invention has simply technics and easy operation.

The embodiment of the invention discloses an array substrate, a preparation method thereof, a display panel and a display device. The array substrate comprises a first underlayer substrate, a fingerprint identification unit, a driving circuit layer and a transparent film layer, and is characterized in that the fingerprint identification unit comprises a photosensitive diode, and the fingerprint identification unit is used for performing fingerprint identification according to light reflected to the fingerprint identification unit via a touch main body; the driving circuit layer is located at the side, which is away from the fingerprint identification unit, of the first underlayer substrate, at least one opening structure is formed in the driving circuit layer and the first underlayer substrate, and the vertical projection of the opening structure on the first underlayer substrate and the vertical projection of the photosensitive diode on the first underlayer substrate have an overlapping area; and the transparent film layer at least fills the opening structure. According to the invention, the photosensitive diode is provided with the transparent film layer above, so that the transmittance of the film layer above the photosensitive diode is improved, the fingerprint identification unit can well receive the light reflected to the fingerprint identification unit via the touch main body, and the detection sensitivity of the fingerprint identification unit is ensured.

The invention discloses a photonic crystal, a color film substrate, a display panel and a display device and belongs to the technical field of display. A forbidden band of the photonic crystal comprises an visible waveband and defect layers are arranged in the photonic crystal. The photonic crystal comprises a red area, a green area and a blue area, the photonic crystal with a defect layer which corresponds to the red area is used for penetrating through red light, the photonic crystal with a defect layer which corresponds to the green area is used for penetrating through green light, and the photonic crystal with a defect layer which corresponds to the blue area is used for penetrating through blue light. The color film substrate and the display panel respectively comprise photonic crystal films formed by the photonic crystal. The display device comprises a display device which comprises photonic crystal films. The photonic crystal, the color film substrate, the display panel and the display device solve the technical problem that the display panel has low transmittance.

The invention discloses a method for preparing a high-performance metal nanowire transparent conducting thin film. According to the method, expensive experiment equipment is not needed, after the surface hydrophiling processing is carried out through an ozone plasma etching machine, knife coating is carried out for preparing the transparent conducting thin film, fast drying is carried out after knife coating, the conductivity of the conducting thin film is improve through certain processing, a protection layer is coated, and after the stability of the thin film is improved, the high-conductivity, high-transmittance, high-stability and low-haze metal nanowire transparent conducting thin film is achieved. According to the method, operation is easy, cost is low, and large-scale production can be achieved.

Methods for performing a condensation reaction are disclosed. Specifically, various methods for the production of highly-pure bisphenol-A are disclosed in which an attached promoter ion exchange resin catalyst system is combined with a solvent crystallization step.

The invention relates to an antenna housing and provided a combined antenna housing. The combined antenna housing comprises an arc-shaped housing body (1) and a steel base (2) in a hollow cylindrical structure, wherein the steel base (2) is located on the lower portion of the arc-shaped housing body (1), and the arc-shaped housing body is in a sandwiched composite structure. Compared with existing products, the combined antenna housing has the advantages of being good in electromagnetic permeability and high and low temperature shock resistance and capable of protecting antennas to be used in severe weather such as sand, high wind and humid rainy climate and in regions with large temperature differences.

The invention provides an optical sensor (100). The optical sensor (100) comprises a planar waveguide (120) capable of emitting radiation (22) in a direction perpendicular to the sensor waveguide surface (122) and capable of accepting and transmitting radiation (16) to detector (140), preferably a planar detector (140). Further, optionally one or more lenses (133), one or more spectral filters (131) and one or more polarisation filters (132) may be arranged between the waveguide (120) and the detector (140). The optical sensor (100) is especially arranged to read out a wire grid substrate (200) with analytes (10).

There is such an issue with the well-known optical element that it is difficult to achieve a high transmittance since the transmittance is determined according to the pattern size of the light transmission regions, so that the luminance of the display device to which such optical element is mounted is deteriorated. Provided is an optical element which employs a structure in which the shape of a conductive pattern where electrophoretic particles cohere in a wide viewing field mode is formed in a comb-like shape and plural stages and plural rows of light transmission regions are disposed in the spaces between the comb teeth. This makes it possible to exclude the electrophoretic particles from the regions other than the comb-like electrode for allowing the light to transmit that part.

The invention belongs to the technical field of the preparation of self-repairing transparent antibacterial coatings and particularly relates to a method for preparing a transparent antibacterial coating with self-repairing capability by using a layer-by-layer assembly technology. The prepared coating can well inhibit Gram-positive and Gram-negative bacteria, has high transmittance in a visible region and can be simply repaired by immersing the coating in the water or spraying water on the coating due to the declined coating transparency by mechanical damage. By using the repairing method, the transparency of the coating firstly realizes complete self-repairing in the same region for many times. The preparation method of the self-repairing transparent antibacterial coating is simple with non-toxic and harmless raw materials used in the method, thus probably making some contribution to the researches with respect to material science, surface chemistry and the like; in addition, the self-repairing transparent antibacterial coating is expected to be widely used in the fields such as a touch human-computer interface (such as a touch display screen).

The invention relates to a directly-heated type tubular film enriching and sampling device used for online mass spectrum. The directly-heated type tubular film enriching and sampling device comprises a tubular film, heating wires, a film sampling cavity, a carrier gas, a sampling metal tube and an emergency switching-off solenoid valve. The tubular film is a pore-free compact polydimethylsiloxane tubular film. In the device, the tubular film is adopted to sample and quickly enrich the samples; heating wires are uniformly wound outside the film as a film heating device; a cavity outside the film is connected with mass spectrum by a metal capillary tube to form a negative-pressure state; a gas carrying device is additionally arranged outside the film. When the tubular film is under action of stretching, heating, pressure difference and carrier gas, samples can be quickly enriched through the tubular film. Penetration rate and penetration velocity of samples in the film sampling device are improved.

The present application describes a retarder stack color switch using a single polarization analyzer for reflective-mode projection displays. The single polarization analyzer permits additive mode switching, which optimizes the chrominance of the additive primary outputs and the black state. Moreover, the single analyzer color switch provides a white state, which is frequently used in sequential systems. The single analyzer color switch overcomes some of the cost and manufacturing challenges associated with conventional transmissive full color switches based on retarder-stack-filters. The single analyzer color switch according to an embodiment uses a split-path so that relatively weak colors can follow a “high-efficiency” path.

The invention discloses a near-infrared filter for optical communication. A substrate of the filter is made of transparent or colored glass such as optical glass and jewel. The two sides of the substrate are respectively plated with a band-pass filter film and an antireflective film. Therefore, 760-900nm light can be transmitted efficiently, and 400-760nm and 900-1100nm light can be cut off. Signal light within near-infrared bands is transmitted efficiently, and stray light in other bands (visible light especially) is cut off, thus obtaining high signal-to-noise ratio. The spectral curve of the filter film system has high pass-band transmittance, approximately rectangular pass-band shape, small pass-band ripple, high out-of-band cut-off depth and wide cut-off range. The location requirement of the film system is reduced, and the rate of finished products is improved. By adopting the near-infrared filter for optical communication prepared by the use of the film system structure and the preparation method, the influence of stray light in other bands can be effectively suppressed while as much signal light as possible can be acquired, and the signal-to-noise ratio is significantly improved.

The invention discloses an infrared-radar compatible stealthy material and a preparation method thereof. The material sequentially comprises a low infrared emissivity layer, a radar wave transmission layer, a radar wave absorbing layer and a radar reflecting layer from top to bottom, wherein the low infrared emissivity layer takes an inorganic adhesive capable of bearing high temperature of 1000K or above as a matrix material, takes fibers with infrared emissivity not higher than 0.8 at a wave band of 8 to 15mu m as a reinforcing material, and takes metal or a semiconductor as an auxiliary material; the radar wave transmission layer takes resin as a matrix material and takes continuous fibers with high transmissivity to radar wave of 2 to 18GHz, and high strength as a reinforcing material; the radar wave absorbing layer takes resin containing a nitrile functional group as a matrix material, takes basalt fibers as a reinforcing material and takes a ferrite radar wave absorber as an auxiliary material; the radar reflecting layer takes resin as a matrix material and takes carbon fibers as a reinforcing material. The stealthy material disclosed by the invention is excellent in infrared and radar stealthy performance and is simple in preparation process.

The invention discloses a method for preparing YAG transparent ceramics based on an improved Isobam gel system. The method comprises the following steps that (1) grinding balls, an organic solvent, adispersing agent A, a sintering additive and ceramic powder are placed into a ball mill tank, ball milling and mixing are carried out to obtain mixed slurry A; (2) the mixed slurry A is dried, sievedand calcined to obtain raw material powder conducted with gel injection molding; (3) deionized water, an Isobam solution, an epoxy resin cross-linking agent, a pH conditioning agent, a dispersing agent B and the grinding balls are added into the ball mill tank, lastly, the raw material powder is added, after preliminary stirring is carried out, and then ball milling and mixing are carried out to obtain mixed slurry B with high solid content; (4) vacuum degassing, injection molding, gel drying and curing and gel discharging are carried out; (5) vacuum sintering, annealing and polishing are carried out on biscuit after gel discharging, and the YAG transparent ceramics are obtained. The provided method for preparing the YAG transparent ceramics based on the improved Isobam gel system has theadvantages that the solid content of the ceramic slurry is improved, the density of the biscuit is improved, the permeability of the YAG transparent ceramics prepared by vacuum sintering is greatly improved, the technology is simple, and the method is conductive to industrialized production.

The present invention discloses a liquid crystal display (LCD) panel and method for forming the same. In the LCD panel, the TFT includes a source and a drain formed by a transparent conducting layer, and a gate formed by a metal layer. The source is electrically connected with a data line through a via hole over the data line. The source connects to the drain via an active layer. Whatever the number of data lines are, each pixel corresponds to an associated via hole, so the number of via holes does not increase, and not reduce the aperture ratio. Therefore, the present invention is very proper to a design using more data lines and working in a high frequency. Moreover, the matrix circuitry of LCD of the present invention is well applied in a display which not only increases a density of data lines to raise the frame rate, but also maintains the aperture ratio and brightness.

The invention discloses a wideband frequency reconfigurable FSS radome, belonging to the technical field of electromagnetic wave control. A FSS ultra-thin unit is compactly combined as a unit, and that FSS ultra-thin unit is periodically arranged as M*N; FSS ultra-thin element comprise a special-shaped resonant square ring, a fractal square patch and a dielectric substrate; The fractal square patch is located in the inside of the special-shaped resonant square ring. A gap is left between the special-shaped resonant square ring and the fractal square patch, and a varactor is loaded in the center of the gap around the ring. The radome of the invention has the characteristics of high transmittance, wide angle incidence and polarization insensitivity, and can be used in the fields of radar, ultra-wideband antenna, aircraft skin, multi-channel communication, high-purity radiation and the like.

The invention discloses ultra-high-refractivity environment-friendly cameo glass. The cameo glass comprises components in percentage by weight as follows: 10-20% of SiO2, 32-45% of BaO, 35-45% of TiO2, 0-5% of ZnO, 0-8% of ZrO2, 0-3% of K2O, 1-3% of B2O3, 2-5% of CaO, 0.5-2% of La2O3, 0-1.5% of Y2O3, 0.05-0.5% of Nd2O3, 0.02-0.4% of Er2O3 and 0.008-0.02% of NiO. The refractivity of the cameo glass is in a range of 1.9-2.1, the visible light transmittance is in a range of 81-85%, and the cameo glass is pure in color, low in melting temperature and good in chemical stability and has characteristics of easiness in grinding and polishing and the like. The invention further discloses a preparation method of the cameo glass. The melting quality of the glass is guaranteed through secondary melting, and erosion to refractory materials is reduced through low-temperature rapid melting, so that the effect caused by impurities on the quality of the glass is controlled.

The invention relates to a terahertz waveband dielectric metamaterial, and aims to design and produce a device with a small size, easy integration and higher transmission efficiency for improving the flexibility of a photoconductive antenna-based terahertz time-domain spectral system, so as to replace a silicon lens and a paraboloidal mirror or a silicon lens and a terahertz lens. A technical scheme is adopted as follows: a dielectric metasurface collimating lens matched with a terahertz photoconductive antenna in use consists of two parts: a substrate layer and a two-dimensional microstructure layer, wherein the substrate layer is an isotropous high-resistance silicon layer with uniform thickness; the substrate layer is used for providing mechanical support for the two-dimensional microstructure layer, and the two-dimensional microstructure layer is also made from high-resistance silicon; the two-dimensional microstructure layer is formed by tetragonal lattices of cylindrical structures in arrangement similar to a concentric annulus way; and the cylindrical structures of different diameters have different modulation depths on phases, and the cylindrical structures on the same ring of the concentric annulus are the same in diameters. The dielectric metasurface collimating lens is mainly applied to design and manufacturing of the device with higher transmission efficiency.

The present invention relates to a dye based circularly polarizing film for organic light emitting diodes, which includes a polarized light film made of polyvinyl alcohol and 1/4 wave plate, characterized in that, the polarized light film is color dyeing and spreading through configuring a high dichroism dye. In the absorption wavelength region 500-640 nm, the principal absorption wavelength bandwidth is 80-120 nm and the average monolithic transmittance is 53 -59% in the visible wavelength 380-780 nm. Utilizing the characteristic of the photopic vision phenomena and the green light having the highest luminous efficiency in the OLED tricolor, the color polarized light film is used to confine the wavelength 500-640 nm and replaces the film with no reflection that restrains the full wavelength of the visible light, so the circular polarization sheet which has the contrast with no evident depress is produced and the external quantum efficiency is improved by 25-37%. Jointed on one side of the cellulose triacetated film of the two sides of the polarized light film, anti dazzle or low reflective coating or the film having the two functions, is used to improve the contrast. The invention can improve the luminous efficiency, reduce the electric power consumption and advance the life of the OLED.

The invention relates to a technical field of display, and especially to a high brightness color film substrate and a display apparatus. The color film substrate comprises: a substrate, wherein black matrixes and a color pixie layer are arranged on a surface of the substrate, an insulating layer is arranged on the black matrix and the color pixie layer, light refraction units are embed in a surface of the insulating layer, a flat layer is arranged on the insulating layer, and refractive index of the refraction unit is greater than that of the insulating layer. With the color film substrate and the display apparatus provided in the invention, an additional refraction unit can enable the light that emits to the black matrix to generate refraction, thereby more light emits from the pixel opening region, according to the invention, transmittance of the light is greatly improved, display brightness of the display is increased and user experience feeling is improved.

A circularly polarizing plate comprising a scattering-dichroic absorption compound polarizer composed of a film dispersed with micro-regions, and a quarter-wavelength plate composed of one or a plurality of phase difference plates that are laid in layers in a matrix formed of translucent resin containing iodine based light absorbing material. Such a circularly polarizing plate exhibits high transmittance and high degree of polarization and can suppress unevenness of transmittance in the case of black display.

The disclosure provides a touch display panel and a display device. The touch display panel includes a substrate, a plurality of scan lines, a plurality of data lines, pixel units, touch electrodes and a plurality of touch lines. Pixel electrodes in each pixel unit include a plurality of strip electrodes, and two adjacent pixel units form a unit group including a first pixel unit and a second pixel unit. The first pixel unit includes a first part and a second part. The second pixel unit includes a third part and a fourth part. The first pixel unit and the second pixel unit are in concave-convex fit arrangement. Each touch line is electrically connected to a corresponding touch electrode via a through hole located between the second part and the fourth part.

The invention discloses a liquid crystal display device and a liquid crystal display device substrate. The liquid crystal display device comprises a first substrate, a second substrate opposite to the first substrate, and a plurality of The liquid crystal layer of liquid crystal molecules and a plurality of spacers arranged between the first and second substrates, the opposite surfaces of adjacent spacers are respectively provided with first electrodes and second electrodes to form a transverse electric field to drive the liquid crystal molecules to deflect . Compared with the prior art, the liquid crystal display device of the present invention has wider viewing angle and higher transmittance.

The invention relates to the technical field of lithium-ion batteries, in particular to a battery diaphragm and a preparation method thereof. In order to overcome the defects of weak adhesive force and low penetration rate among all the composite layers of the battery diaphragm in the prior art, the invention provides the battery diaphragm. The battery diaphragm comprises a polyimide porous-film layer and a polyolefin porous-film layer, wherein the polyolefin porous-film layer is bonded on the polyimide porous-film layer; and a through hole is arranged on the battery diaphragm, the aperture of the through hole is 60 to 250 nanometers, and the porosity is 30 to 60 percent. The thickness of the battery diaphragm is 30 to 50 microns, and the thickness of the polyimide porous-film layer is 20 to 40 microns. Compared with the prior art, the battery diaphragm provided by the invention has strong bonding forces and high penetration rates among layers. The invention also provides the preparation method of the battery diaphragm, and the method comprises a coating working procedure, has a simple process and is easy to operate. The battery diaphragm provided by the invention can be widely applied to the lithium-ion batteries.

The invention provides a frequency selective surface-based polarization-adjustable terahertz filter. The frequency selective surface-based polarization-adjustable terahertz filter is characterized bycomprising a substrate and at least one frequency selective surface unit, wherein the at least one frequency selective surface unit is fixed on the substrate, is periodically arranged in a two-dimensional way and is used for filtering an incident terahertz wave, the frequency selection unit has a wire in a spiral line shape, and the wire is used for generating resonance with the incident terahertzwave. In the frequency selective surface-based polarization-adjustable terahertz filter, the frequency selection unit has an asymmetric structure due to the wire being in the spiral line shape, so that the characteristic parameters in different polarization directions are different, the central frequency of the filter can deflect, and the problem that the central frequency of an existing symmetric frequency selective filter cannot be adjusted according to a polarization direction of the incident electromagnetic wave is solved; and moreover, the frequency selective surface-based polarization-adjustable terahertz filter has the advantages of high central frequency transmittance, low loss, high selectivity, low cost and the like, and is convenient to fabricate and process, and the central frequency can be adjusted.

Disclosed are a novel ITO crossover integrated capacitive touch screen and a manufacturing method thereof. The novel ITO crossover integrated capacitive touch screen comprises a transparent substrate, and a silicon dioxide layer, a niobium pentoxide layer, a black resin layer, an ITO crossover electrode, a first insulation layer, an ITO electrode, a metal electrode, and a second insulation layer sequentially stacked on the transparent substrate. The silicon dioxide layer covers the glass completely, and the niobium pentoxide layer covers the silicon dioxide layer completely. The ITO electrode comprises a capacitive screen driver and a sensing electrode, and is provided with a patterned graphic structure. The capacitive screen driver and the sensing electrode are on the same layer, mutually independent, mutually insulated, and vertical in design. By the reasonable design for the stacked structure and the crossover conductive mode of the capacitive touch screen, the present invention can effectively improve the transmittance of the capacitive touch screen and reduce the visibility of the ITO pattern, and the reliability of the touch screen is further improved. novel ITO crossover integrated capacitive touch screen.