2935 results about "Optical transmittance" patented technology

An OPC method includes providing a primary mask having a primary pattern, forming an assist mask having a correction pattern substantially complementary to the primary pattern, and forming a reticle by overlapping the primary mask and the assist mask. The light transmittance of the correction pattern is adjustable so as to equalize the light intensity distribution of the primary mask.

A fluidic medical diagnostic device permits measurement of analyte concentration or a property of a biological fluid, particularly the coagulation time of blood. The device has at one end a sample port for introducing a sample and at the other end a bladder for drawing the sample to a measurement area. A channel carries the sample from the sample port to the measurement area, and a stop junction, between the measurement area and bladder, halts the sample flow. The desired measurement can be made by placing the device into a meter which measures a physical property of the sample—typically, optical transmittance—after it has interacted with a reagent in the measurement area.

It is an object of the invention to provide a substrate for a liquid crystal display having optical transmittance improved without reducing the speed of a response to a tone change and a liquid crystal display utilizing the same. There is provided a drain bus line formed on an array substrate which sandwiches a liquid crystal in combination with an opposite substrate provided in a face-to-face relationship therewith, a TFT connected to the drain bus line, and a pixel electrode which has stripe-shaped electrodes, along with spaces, connected to the TFT and provided in parallel with the drain bus line, stripe-shaped electrodes in the vicinity of the drain bus line having an electrode width formed narrower than the width of internal electrodes located inside the same.

An improved applanation lens and method for use in an interface between a patient's eye and a surgical laser system does not discolor or lose light transmittance when subjected to gamma radiation. The improved applanation lens has an applanation surface configured to contact the eye upon application of a pressure. The lens is formed of high purity silicon dioxide (SiO2) with purity great enough to resist discoloration upon prolonged irradiation by high-energy radiation such as UV, x-rays, gamma rays or neutrons, and is preferably a fused silica.

The present invention realizes a display device or input device having excellent ultraviolet protection property for the touch panel, display element or the like, while retaining optical characteristics, even when a small amount of or no optical film is used. The pressure-sensitive adhesive sheet of the present invention has a total light transmittance of 85% or more, a light transmittance at a wavelength of 380 nm of 5% or less, and a haze of 3% or less. The pressure-sensitive adhesive sheet preferably includes a pressure-sensitive adhesive layer containing an acrylic polymer and a triazine-based ultraviolet absorber.

Porous membranes having a micro phase separation structure and showing a light transmittance at the wavelength of 400 nm of not less than 30% are obtained by the dry phase conversion method comprising drying a coating layer of a dope containing a polymer, a good solvent for the polymer and a poor solvent for the polymer which solvent has a higher boiling point than the good solvent. The polymer includes cellulose derivatives, vinyl-series polymers such as acrylonitrile-series polymers and (meth)acrylic acid ester-series polymers, polysulfone-series polymers, and the like. The porous polymer membranes have a porosity of 10 to 60%, a mean pore size of about 0.002 to 0.35 mum and a maximum pore size of not greater than 0.4 mum. These porous membranes shows not only excellent transparency but also high productivity.

The invention provides a preparation method for a haze-adjustable flexible transparent conductive film. The transparent electrode is a nanometer silver line ink which is composed of a light scattering medium, a nanometer silver line and a high molecular bonder and an organic solvent and is coated on a flexible substrate material; after the ink is baked, a transparent nanometer silver line conductive network is formed on the flexible substrate, and the nanometer silver line conductive network is embedded with the light scattering medium at the same time, so that the flexible transparent conductive film is formed; the haze adjustment of the transparent electrode can be realized finally according to the difference of the parameters such as the type as well as the concentration, the size and the like of the light scattering medium; and the transparent electrode is obtained by coating of the nanometer silver line ink, so that the adjusting of the haze can be realized while good conductivity and high light transmittance are remained. The prepared product not only can be applied to the field of a touch screen and a display panel and the like which require lower haze, but also can satisfy requirement for higher haze of the transparent electrode in the field of a film solar cell panel. Meanwhile, a one-step film forming process is simple and is suitable for roll-to-roll printing.

The invention provides a display screen manufacturing method and a display screen, and relates to the technical field of display screens. The method includes the steps that as for a first class module the hardness of which is bigger than a set hardness threshold in the display screen, at least the area, which is correspondingly provided with functional devices, of the first class module is arranged as a structure the light transmittance of which is bigger than a set light transmittance threshold while being powered on; as for a second class module the hardness of which is not bigger than the set hardness threshold in the display screen, holes are dug on at least the area, corresponding to the area provided with the functional devices, of the second class module. According to the display screen manufacturing method and the display screen, by arranging a structure with high light transmittance and digging the holes, an approximately transparent area with high light transmittance can be formed on the display screen, so that the functional devices can be arranged below the display screen and achieve functions through the approximately transparent area, instead of being arranged on the top of the display screen. Therefore, the top area of the display screen can be fully utilized, the screen proportion of a mobile terminal is greatly increased, and meanwhile, normal functioning of the functional devices can be ensured.

The invention relates to a capacitive touch screen, which comprises a substrate and an ITO layer, an insulating layer, a circuit layer and a protective layer which are arranged on the same side with the substrate, wherein the ITO layer consists of various mutually parallel first axial traces and various mutually parallel second axial traces which are intersected; the first axial traces and the second axial traces are perpendicular to each other; each first axial trace is separated into various units by various second axial traces which are intersected with the first axial trace; two adjacent units in the same first axial trace are electrically connected through metal bridges; and insulating pieces for insulating the metal bridges and the second axial traces are arranged between the metal bridges and the second axial traces. Because the ITO layer which simultaneously comprises the first axial traces and the second axial traces is arranged on the same side with the substrate, the thickness of the whole film layer is thinned; the structure of the whole touch screen is simplified; the manufacturing cost is reduced; and the transmittance of the touch screen is improved. The invention also discloses a processing method for manufacturing the capacitive touch screen.

The invention belongs to the surface patterning microstructure construction technique, which relates to a method for constructing a microstructure with anti-reflection performance on a foundation base by combining the self-assembly technique with the reactive ion beam etching technique. The method is to take monolayer polymeric micro-spheres, silicon dioxide micro-spheres and nano-particles of metal or metal oxides as a barrier layer and implement the RIE etching to the foundation base, then an approximate cone-shaped microstructure is constructed on the foundation base, and the structure has extreme high anti-reflection performance, thereby effectively improving the light energy utilization rate, reducing the interference of veiling glare in an optical system, increasing the optical transmittance, and further improving the sensitivity and stability of the optical system, and the method can be used for constructing large-area anti-reflection structures. The method of the invention has advantages of simple operation, changeable foundation base, strong applicability, good repeatability, low cost, high efficiency, adjustable anti-reflective applied wavelength and conformity to industrialized standards, and can be used for making photoelectric devices such as solar batteries and white light sensors.

The invention relates an electromagnetic shielding optical window with a two-double cirque metal grating structure, which belongs to the optical transparent piece electromagnetic shielding technical field; the electromagnetic shielding optical window is formed by loading two layers of cirque metal gratings on two sides of the optical window; each layer of cirque metal grating is formed by closely connecting and distributing metal cirque units in a two-dimensional orthogonal arrangement mode; an outside diameter of a cirque of the two layers of cirque metal gratings is greater than pi / 2 times of a side length of a pane of the prior monolayer pane metal grating; the space between two layers of circular metal gratings is two to four times of the outside diameter of the cirque; compared with the prior monolayer pane metal grating, the optical window with the two-double circular metal grating does not reduce light transmittance, substantially improves shielding efficiency, homogenizes high-level energy diffracting distribution and solves the problems that the influences of high light transmittance, strong electromagnetic shielding efficiency and low imaging quality can not simultaneously considered in the prior optical window electromagnetic shielding technology.

The invention discloses a quantum-dot light-emitting diode displayer and a display device. Electroluminescence structures are arranged in subpixel units of pixel units; a monochromatic quantum dot layer is arranged in the subpixel unit of at least one color of each pixel unit and positioned on light emerging sides of the electroluminescence structures; the monochromatic quantum dot layers emit monochromatic light corresponding to the colors of the subpixel units after excited by light emitted by the electroluminescence structures. Quantum dots are adopted to replace the existing inorganic doping system as a photochromic conversion material; the quantum dots can emit the monochromatic light after excited by the light emitted by the electroluminescence structures; since the quantum dots are narrow in emission spectrum and high in luminous efficiency, the color purity of the subpixel units forming the pixel units can be improved, and the display quality of the displayer is improved. In addition, since the quantum dots can scatter the light emitted by the electroluminescence structure, the light transmittance of photochromic conversion can be improved in comparison with the inorganic doping system material, and the luminous efficiency of the displayer is improved.

An LED lampshade has a body and multiple light concentrators. The body has a light exit plane. The light concentrators are formed on the body. Each light concentrator has a light incident recess, a light transmitting recess and an third concentration wall. The light incident recess has a first concentration wall and a first chamber defined by the first concentration wall. The light transmitting recess corresponds to the light incident recess, and has a second concentration wall, a second chamber defined by the second concentration wall and opposite to the first chamber, and an opening formed through the light exit plane. The third concentration wall is formed around a periphery of the light concentrator. Given the opposite light incident recess and light transmitting recess and the three concentration walls, the LED lampshade enhances light transmittance and concentration therethrough.

A light emitting device includes: a ceramic substrate; a plurality of LED chips; a printed resistor(s) connected in parallel with the plurality of LED chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of LEDs, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency.

A method for manufacturing an image display device includes the step of forming a cured resin layer 15 by interposing a photo-curable resin composition between a base 2 including an image display unit such as a liquid crystal display panel 8 and a light-transmitting protection member 3 including a light-shielding member 5 and then photo-curing the photo-curable resin composition. In this method, a resin composition having a curing shrinkage ratio of 5% or less, yielding a cured product having a storage elastic modulus at 25° C. of 1.0×107 Pa or less, and forming the cured resin layer having a light transmittance of 90% or more in the visible range is used as the photo-curable resin composition.

A curable organopolysiloxane resin composition having a viscosity at 25° C. in the range of 0.001 to 5,000 Pa·s, a total acid number as specified by JIS K 2501 (1992) in the range of 0.0001 to 0.2 mg / g, and light transmittance in a cured state equal to or greater than 80%; an optical part comprised of a cured body of the aforementioned composition. The curable organopolysiloxane resin composition of the invention is characterized by good transparency, low decrease in transmittance when exposed to high temperatures, and excellent adhesion when required.

The invention relates to the technical field of functional master batches, in particular to a light diffusion master batch for transparent plastics and a preparation method thereof. The light diffusion master batch comprises the following components in percentage by weight: 5-50% of light diffusant, 1-8% of lubrication dispersant, 2.5-7.5% of antioxidant, 2.5-7.5% of ultraviolet light absorber and 27-91% of matrix resin; after being mixed, the components are placed in an extruder for being molten and extruded; and the extruded materials are cooled, pelletized and dried to prepare the product of light diffusion master batch. The light diffusion master batch has stable properties, high transparency and high haze; and as the master batch contains a light stabilizing agent and a heat stabilizing agent with high concentrations, plastic products produced thereby have excellent ageing resistance, and are suitable for long-time use in locations of natural illumination or manual illumination.

A transparent thin-film solar-cell module having high output, high light transmittance, and excellent appearance, the module including a plurality of photoelectric conversion cells connected in series, the cells containing a first electrode layer, a semiconductor layer, and a second electrode layer stacked in that order on a main surface of a transparent insulating substrate; and a plurality of light-transmissive aperture holes formed by removing at least the second electrode layer, the light-transmissive aperture holes each having a diameter of 30 μm to 500 μm, the plurality of light-transmissive aperture holes being disposed in a line at a distance between the centers of the light-transmissive aperture holes of 1.01 to 2 times the diameter of each light-transmissive aperture hole, and a method for producing the module.

The invention relates to organic silica gel for packaging a large-power LED and a preparation method thereof. The gel is prepared by mixing a component A of vinyl-contained polysiloxane, a silicon resin component B, a component C of hydrogen-contained polymethylsiloxane, a platinum catalyst component D, a catalytic inhibiting agent component E and a thickening agent component F, and the obtained packaging gel with different refractive rates of 1.4 grade, 1.5 grade, and the like is used for packaging various types of large-power LEDs or is used as other optical purposes. By adopting the component B as a filling material, the invention solves the problems of temperature resistance, color change, light transmittance and needle penetration reduction of the large-power LED product, can be made into two packaging types of a single component and double components, improves the adaptability on packaging equipment and the manufacture procedure and the efficiency, reduces the cost and is convenient for use.

The invention relates to an organic silicon encapsulating material for a high-power LED and a preparation method thereof. The organic silicon encapsulating material is prepared by mixing a component A containing vinyl polysiloxanes, a silicone resin component B, a component C containing hydrogen polysiloxane, a platinum catalyst component D, a component E of catalytic inhibitor of acetylene alcohols and a tackifier component F. The obtained encapsulating silicon rubber with different refractive indexes of level 1.4, level 1.5 and the like can be used for the encapsulation of various high-power LEDs and the encapsulation of other optical application. The organic silicon rubber encapsulating material for the high-power LED takes the silicone resin component B as a filling material, which not only enables that the silicone rubber has high transparency, high strength and high light transmittance, but also improves the temperature resistance, the yellowing resistance, and the durability of the high light transmittance of high-power LED products. The organic silicon rubber encapsulating material for the high-power LED can be prepared into two encapsulating forms of a single component and bi-component, which improves the adaptability and the encapsulating efficiency for encapsulating equipment and process procedures, and has the characteristics of reduced cost and convenient use.

An LCD device includes an LED backlight assembly, a liquid crystal display panel over the LED backlight assembly, a bottom cover covering a rear side of the LED backlight assembly, a reflecting sheet on an inner side of the bottom cover, the reflecting sheet having a plurality of through-holes corresponding to the plurality of LEDs, a main cover enclosing edges of the liquid crystal display panel and the LED backlight assembly, and a top cover covering edges of a front side of the liquid crystal display panel and combined with the main cover. The LED backlight assembly includes a plurality of LED lamps, a diffusion plate spaced apart from the plurality of LED lamps and having a light transmittance within a range of about 50% to about 90%, and a plurality of optical sheets over the diffusion plate. The LED assembly may be used in a method for providing a planar light source to an LCD panel in an LCD device.

An ultrasonic spray coating method of producing a transparent and conductive film, comprising (a) operating an ultrasonic spray device to form aerosol droplets of a first dispersion comprising a first conducting nano filaments in a first liquid; (b) forming aerosol droplets of a second dispersion comprising a graphene material in a second liquid; (c) depositing the aerosol droplets of a first dispersion and the aerosol droplets of a second dispersion onto a supporting substrate; and (d) removing the first liquid and the second liquid from the droplets to form the film, which is composed of the first conducting nano filaments and the graphene material having a nano filament-to-graphene weight ratio of from 1 / 99 to 99 / 1, wherein the film exhibits an optical transparence no less than 80% and sheet resistance no higher than 300 ohm / square.

“Smart” controllers for windows having controllable optical transitions are described. Controllers with multiple features can sense and adapt to local environmental conditions. Controllers described herein can be integrated with a building management system (BMS) to greatly enhance the BMS's effectiveness at managing local environments in a building. The controllers may have one, two, three or more functions such as powering a smart window, determining the percent transmittance, size, and / or temperature of a smart window, providing wireless communication between the controller and a separate communication node, etc.

A method of fabricating a thin-film compound solar cell having an n-type buffer layer formed therein for providing a heterojunction with a p-type compound semiconductor light absorbing layer formed on a back electrode by applying a chemical bath deposition (CBD) process using an aqueous solution for dipping the light absorbing layer to deposit particles on the surface thereof. In this process, the temperature of the solution is controlled from low to high to increase sizes of the particles to be deposited on the light absorbing layer so as to form the buffer layer which possesses a high optical transmittance, tight adherence to the light absorbing layer and conformity with the transparent electrode formed thereon even if it would be made of InS material generally possessing a small bandgap and hard to pass light of short wavelengths.

The invention discloses a colorless highly-transparent polyimide film as well as a preparation method and an application thereof. The film is prepared from semi-aromatic polyimide resin of which the structural formula is shown as formula I, wherein Al is an alicyclic structure, R1 is an aromatic diamine structure containing fluorine and sulfone, R2 is another aromatic diamine structure, and n:m=(0-400):1. The film has excellent optical transparency, colorless transparency of the film with great thickness (greater than or equal to 100 mu m) can be realized, the initial light-transmitting wavelength is below 300nm, and the light transmittance in a visible region is greater than or equal to 90%; and meanwhile, the film shows excellent heat resistance and mechanical property, and has important application values in the manufacturing of the photoelectric devices such as a solar battery, a display, an electronic book, an electronic label, a photoelectric sensor and the like.

Provided is a surface light source unit which has a high-directivity point light source and has a decreased thickness in the in the direction in which light is irradiated from said point light source. Also provided are a surface illumination device and a liquid crystal display device. A plurality of small chambers (311 to 322) having an opening on the top are formed in a housing (3) from side plates (3b to 3e) that have a predetermined height and partition plates (4) which partition the inside of the housing (3). Each small chamber is provided with a point light source (2) on the bottom part. The opening of each small chamber (311 to 322) is covered with a light transmitting / reflecting plate (511 to 522) which has a surface area (S), and comprises: a central reflecting section that has a surface area (ΔS), exhibits high reflectance and low transmittance, and is positioned directly above the point light source (2); and an outer reflecting section that surrounds the central reflecting section and is configured so that the light transmittance increases at distances further from the central reflecting section. The surface area (ΔS) and surface area (S) of each light transmitting / reflecting plate (511 to 522) are set in a manner such that the ratio ΔS / S is a predetermined value.

The near-infrared ray absorption film of the present invention is a near-infrared ray absorption film in which a near-infrared ray absorption layer comprising a composition containing a near-infrared ray absorbing dye having maximum absorption at a wavelength of 800 to 1200 nm, and a resin is provided on a transparent substrate film, and is characterized that a surfactant having HLB of 2 to 12 is contained in the composition at 0.01 to 2.0% by mass. There can be provided a near-infrared ray absorption film excellent in coated film appearance which has the wide absorbing ability in the near-infrared ray absorbing region, has a high light transmittance in the visible light region, has little change in optical properties with time, and can respond to a higher luminance of a display, and higher-definition and higher image quality by Hi-Vision broadcasting in recent years.

The invention provides a transparent display device. The transparent display device comprises a liquid crystal panel display unit, which comprises a color film substrate, an array substrate, a liquid crystal layer clamped between the color film substrate and the array substrate, a first polaroid and a second polaroid, wherein the first polaroid is arranged on the side of the color film substrate, which is far away from the liquid crystal layer; the second polaroid is arranged on the side of the array substrate, which is far away from the liquid crystal layer; the color film substrate comprises a first transparent substrate and a color light-filtering film formed on the first transparent substrate; the color light-filtering film comprises a plurality of composite pixel areas; each composite pixel area comprises a plurality of color sub-pixel areas and a transparent sub-pixel area; the second polaroid comprises unpolarized patterns spatially corresponding to the transparent sub-pixel areas in the color light-filtering film; and the polarization state of light passing through the unpolarized patterns is unchanged. The transparent display device provided by the invention has higher light transmittance.