Abstract: An organic EL element has a capping layer formed on a cathode layer. The capping layer contains a pigment that absorbs light that has a wavelength that is different from a wavelength of the light emitted from a light emitting layer, and has a reflectance that is higher at interface in multi-layered structure than a reflectance of the light emitted from the light emitting layer. The capping layer prevents incident light from outside from returning to the outside of the organic EL element.

Abstract: A light-emitting diode (LED) device includes a reflective electrode and a transparent electrode having one or more light-emitting layers formed there-between. A contrast-enhancement element is located on a side of the transparent electrode opposite the light-emitting layer. The contrast-enhancement element has a first reflected-light absorbing layer and a second layer including transparent areas and reflective areas. The second layer is between the first reflected-light absorbing layer and the reflective electrode. A patterned light-scattering layer is located between the reflective areas of the second layer and the reflective electrode.

Abstract: A light emitting diode (LED). In one embodiment, the LED comprises a base including a cavity, an LED chip disposed on a bottom of the cavity and configured to generate a first light, and a light conversion layer. The light conversion layer includes an upper substrate, a lower substrate and a wavelength conversion particle. The light conversion layer is configured to convert a portion of the first light into a second light according to light emitted by the wavelength conversion particle. Furthermore, the light conversion layer is disposed on an upper surface of the base.

Abstract: To provide a lighting device capable of a substantial color adjustment and unlimited control of spectral components, a lighting device of the present invention puts a first transparent plate in which a phosphor layer dispersed with a first phosphor is formed in places and a second transparent plate in which a phosphor layer dispersed with a second phosphor is formed in places in a path of light from a light source, and stacks the first transparent plate and the second transparent plate on top of each other. The second phosphor differs from the first phosphor. How much in terms of area the phosphor layers overlap with each other is made variable, and the color tone of the lighting device can thus be controlled. The lighting device uses a blue light source as its light source, a green phosphor as the first phosphor, and a red phosphor as the second phosphor.

Abstract: A display filter and a display apparatus including the display filter, which can increase a contrast ratio in a bright room, and prevent a moiré phenomenon and a Newton's ring phenomenon, are provided. The display filter includes: a filter base; an external light-shielding layer comprising a base substrate including a transparent resin and light-shielding patterns spaced apart on a surface of the base substrate at predetermined intervals; and a diffusion layer diffusing a light provided from a panel assembly.

Abstract: A light-emitting device includes a plurality of pixels constituting a screen, each of the pixels including four subpixels, which are a red subpixel, a green subpixel, a blue subpixel, and a remaining subpixel. The red subpixel has a light-emitting layer made of a white-light-emitting material and extending along the screen, and a color filter provided above the light-emitting layer to transmit red light, the white-light-emitting material emitting two-peak white light having an emission spectrum including a valley between a red peak residing in a wavelength range of red light and a blue peak residing in a wavelength range of blue light. The blue subpixel has a light-emitting layer made of the white-light-emitting material and extending along the screen, and a color filter provided above the light-emitting layer to transmit blue light. The remaining subpixel has a light-emitting layer made of the white-light-emitting material and extending along the screen.

Abstract: The plasma display device comprises a plasma display panel and the filter which is formed at a front of the plasma display panel, wherein the filter includes an external light shielding sheet which comprises a base unit, and a plurality of pattern units formed on the base unit, wherein a bottom of the pattern units, which is wider than a top of the pattern units, comprises a concave having a curvature. The device can improve bright room contrast. Also, the sharpness of the display images may be enhanced by reducing the bleeding phenomenon of the display images as well as the adhesiveness of the filter may be enhanced by forming the bottom of the pattern units of the external light shielding sheet as a concave shape in which the center area is depressed into the inside.

Abstract: The present invention relates to a filter and a plasma display device including the filter. The filter is formed on a front surface of a plasma display panel of the plasma display device and includes a first base layer; a second base layer having refractive index smaller than that of the first base layer; and a sheet for protecting external light including a plurality of pattern units formed to be spaced from each other between the first and second base layers, wherein an interval between two pattern units adjacent each other of the plurality of pattern units being larger than a height of the pattern unit.

Abstract: A light source configured to emit first light is combined with a wavelength-converting layer. The wavelength-converting layer is disposed in a path of first light, is spaced apart from the light source, and includes at least one wavelength-converting material such as a phosphor configured to absorb first light and emit second light. The wavelength-converting layer is disposed between a reflective layer and the light source. In some embodiments, the wavelength-converting layer is a thick layer.

Abstract: A wideband retardation layer (or film) that can perform circular polarizing so that the retardation layer can be formed with an organic light-emitting device to be relatively thin and have a relatively high contrast with no reduction in brightness, and an organic light-emitting device including the retardation layer. The retardation film includes a base and a retardation layer including an alkali oxide layer grown to be inclined on a surface of the base, wherein the alkali oxide layer is disposed by slant-angle depositing alkali oxide on the surface of the base.

Abstract: A display device having an electroluminescence element with an improved contrast ratio is provided. Stacked polarizing plates are provided on the outer side of substrates of a display device which includes a first light-transmitting substrate and a second light-transmitting substrate arranged to face each other and an electroluminescence element interposed therebetween that emits light to both the first light-transmitting substrate side and the second light-transmitting substrate side. The polarizing plates facing each other are arranged in a crossed nicol state. Furthermore, among a plurality of polarizing plates arranged to face each other, a plurality of polarizing plates which are stacked on one side or the other side of the light-transmitting substrates are arranged in a parallel nicol state. As a result, a display device with a high contrast ratio can be provided.

Abstract: A color filter substrate is provided. In the color filter substrate, transparent protective films are formed on respective sub-pixels of a color filter. The color filter substrate has improved electric field characteristics without the need for additional optical or circuit compensation to achieve an improvement in contrast and a reduction in color difference.

Abstract: The present invention relates to a light-transmitting substrate (1) which is at least provided with a light-absorbing coating (3). The light-absorbing coating comprises stabilized pigments which are incorporated in a sol-gel matrix. The light absorbing coating comprises silica particles having a size between 5 and 100 nanometers and alumina particles having a size between 5 and 50 nanometers. The total volume concentration of pigments, silica and alumina particles in the light-absorbing coating is between 20 and 65 percent. The volume concentration of silica particles is between 5 and 40 percent and the volume concentration of alumina particles between 1 and 15 percent.

Abstract: White-light efficiency from a light emitting diode is enhanced by recycling inwardly penetrating light outwardly by application of a multi-layer, thin film filter between the LED die and the phosphor layer. This procedure increases the package extraction efficiency.

Abstract: Disclosed is a Plasma Display Panel (PDP). According to an example, the PDP includes a panel, a base film in the front surface of the panel, and an Electro Magnetic Interference (EMI) shielding film in the base film. Another example of the PDP includes a panel with a panel grounding unit in the front surface, a base film in the front surface of the panel, an EMI shielding film on the base film, a back cover surrounding the panel, and a grounding unit for electrically connecting the panel grounding unit to the back cover. The panel grounding unit and the grounding unit are connected through a conductive substance. The PDP of this research can protect the panel from being damaged by the grounding unit and reduce production costs. Also, it can increase EMI shielding rate by grounding the EMI absorbed in the EMI shielding film.

Abstract: Light-emitting devices (24) and light-emitting displays (1) for realizing bright display by allowing light emitted from an emissive layer (100) to efficiently contribute to a display. Polarization separators (500) are arranged between the emissive layer (100) and a phase plate (700). In the light of a wavelength range which includes a part or all of a light-emission wavelength range of the emissive layer and is narrower than a visible wavelength range and is directed from the emissive layer side to the polarization separators side, the polarization separators (500) reflect circularly polarized light components which are converted into linearly polarized light that is absorbed by the polarizer (600) due to the operation of the phase plate and transmit the other light.

Abstract: A plasma display device has a reduced number of components, thereby lowering manufacturing costs, improving productivity of assembly, and reducing a weight thereof. The display device includes a PDP module; a front frame positioned in front of the PDP module and having an opening; a rear cover covering a rear side of the PDP module to shield electromagnetic waves; a front filter positioned to face the opening of the front frame to shield the electromagnetic waves; and a shielding member positioned along a periphery of the PDP module to shield the electromagnetic waves. The front filter has a rear side supported by the PDP module.

Abstract: Film stacks and displays incorporating the same are described.

Abstract: The invention relates to a discharge lamp having a thin film indium oxide coating on the interior lamp envelope surface that effectively reflects UV, near IR and microwave radiation while transmitting light in the visible spectrum, the lamp being a high temperature operating lamp.

Abstract: An optical filter 17 is attached to the display screen surface of a flat display panel 3 of a flat display apparatus. The optical filter 17 is constituted of a lamination of an electromagnetic-wave blocking sheet 17A, an infrared-radiation absorbing and color-tone correcting sheet 17B and an ambient light antireflective sheet 17C.

Abstract: An object of the present invention is to solve the problem of losing a part of the incident light due to the irregular reflection of the incident light if a layer containing fine particles is formed by coating for the purpose of roughing when providing measures to prevent the reflection of the light at the surface of the color filter layer or at the surface of the color conversion layer inside a display, or a problem of difficulty in management of the paint for obtaining a certain roughened surface or a problem of increase of the number of processes to prevent the reflection when preventing the reflection by laminating plural layers of different refractive indices.

Abstract: An organic EL display having a polarizing plate is disclosed. The present invention includes an organic EL display panel, a first polarizing plate on the panel to convert a circularly or linearly polarized light to a linearly or circularly polarized light, and a second polarizing plate on the first polarizing plate to have a polarization characteristic of absorbing light in a high light efficiency wavelength range more than light in a low light efficiency wavelength range.

Abstract: An external light-shielding layer capable of enhancing a visible light transmittance and a contrast ratio and preventing Moire fringe and Newton ring phenomena, a display filter including the external light-shielding layer, and a display device including the display filter. The external light-shielding layer includes a transparent resin matrix, and a plurality of light-shielding patterns formed on the transparent resin matrix and spaced apart from each other in a predetermined interval, wherein a bias angle (?) formed between a traveling direction of the light-shielding patterns and the longer side of the matrix is in a range of about 5 to 80 degrees.

Abstract: A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.

Abstract: The present invention provides a lightweight, thin light-emitting device having a new structure which has a plurality of display screens. Further, the invention provides a dual emission type display device which can perform a pure black display and can achieve high contrast. According to the invention, at least, both electrodes of a light-emitting element (an anode and a cathode of a light-emitting element) are highly light-transmitting at the same level, and a polarizing plate or a circularly polarizing plate is provided, thereby conducting a pure black display that is a state of no light-emission and enhancing the contrast. Moreover, unevenness of color tones in displays of the both sides, which is a problem of a full-color dual emission type display device structure, can be solved according to the invention.

Abstract: The invention relates to a lamp for motor vehicles that at least comprises a first incandescent filament that is intended to produce a light beam having a light/dark cutoff line, the incandescent filament having associated with it for this purpose a shielding cap to restrict the light emitted to a given angular range. The shielding cap (4) has at least one opening that is intended to produce a light beam above the light/dark cutoff line, with at least part of this light beam, which light beam passes through the said opening, not passing through and/or passing through a color filter.

Abstract: The present invention relates to an adhesive composition for an electro-magnetic shielding film and an electro-magnetic shielding filter using the same, and more particularly to an adhesive composition for an electromagnetic shielding film comprising: a) an acrylic copolymer of i) (meth)acrylate ester monomers having C1, to C12 alkyl groups and ii) vinylic monomers having hydroxyl groups; and b) a multifunctional isocyanate crosslinking agent. The electro-magnetic shielding filter of the present invention offers good durability because transparentization is performed with an acrylic adhesive composition having no acidic groups, and thus oxidation of copper is prevented.

Abstract: The present invention relates to a plasma display apparatus. The plasma display apparatus includes a PDP, and a filter formed at the front of the panel. The filter includes an external light shielding sheet including a first base unit, and first pattern units formed in the first base unit, and an EMI shielding sheet including second pattern units. A thickness of the external light shielding sheet is 1.01 to 2.25 times greater than a height of each of the first pattern units, and an angle formed by the first pattern units and the second pattern units is set in the range of 20 to 65 degrees. Thereby, external light can be shielded and an EMI shielding effect can be improved.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel, on which an image is displayed, and a filter positioned in front of the plasma display panel. A discharge gas filled in the plasma display panel contains xenon (Xe) equal to or more than 10% based on total weight of the discharge gas. The filter includes a base portion, and a pattern portion formed on the base portion, having a color darker than a color of the base portion.

Abstract: A display apparatus includes a display and a display filter, wherein the display filter includes a base film, a plurality of reflective elements, and a plurality of light absorbing elements, wherein each of the light absorbing elements corresponds to a reflective element.

Abstract: A plasma display apparatus is disclosed. The plasma display apparatus includes a plasma display panel and a filter positioned in front of the plasma display panel. The filter includes a near infrared ray shielding layer that absorbs or reflects near infrared rays. The plasma display panel includes a front substrate, a rear substrate, and a barrier rib, formed between the front and rear substrates, partitioning a discharge cell. An exhaust unit is omitted in the rear substrate. The discharge cell is filled with a discharge gas containing xenon (Xe) equal to or more than 10% based on total weight of the discharge gas.

Abstract: An optical filter of a plasma display panel (PDP) and its fabrication method are disclosed. The optical filter includes an electromagnetic wave shield layer having a bias angle formed by cutting a mesh film along a predetermined direction.

Abstract: Disclosed herein are optical interference multilayer coatings comprising a plurality of alternating low refractive index and high refractive index layers, where the high refractive index layers comprise at least one mixed metal oxide selected from: NbTaX oxide where X is selected from the group consisting of Hf, Al and Zr; NbTiY oxide where Y is selected from the group consisting of Ta, Hf, Al and Zr; and TiAlZ oxide where Z is selected from the group consisting of Ta, Hf and Zr. Also disclosed herein are lamps comprising a light-transmissive envelope, at least a portion of the surface of the light-transmissive envelope being provided with the optical interference multilayer coating noted above. Such coatings, when used on lamps, may advantageously offer improved energy efficiencies for such lamps.

Abstract: The present invention provides an optical film having a phase difference film, and a polarized film formed on both surfaces of the phase difference film, wherein the polarized film contains at least a polarizer, and the absorption axis of the polarizer is substantially perpendicularly oriented to the polarized film surface. The present invention also provides a glass using the optical film.

Abstract: The present invention relates to a plasma display apparatus including an external light blocking sheet which blocks and absorbs the external light injected from the outside, in particular, in which a pattern portion having a predetermined gap and width on a base portion prevents the external light from injecting into the inside of a panel inside, in addition, and permits to efficiently radiate a light emitted from the inside of the panel, thereby, the bright room contrast of PDP can be improved.

Abstract: An external light shielding film including a lens pattern formed on a surface of a base substrate and including a plurality of aspheric lenses, and an external light shielding pattern formed on another surface of the base substrate, and a display filter having the same, are provided. The external light shielding film and the display filter having the same may increase a contrast ratio in a bright room, enhance brightness, and increase a viewing angle.

Abstract: A plasma display device refines contrast, suppresses moiré, and maintains mechanical strength against shocks from the outside of the device. A front panel is disposed at a distance D from the front of the plasma display panel. A contrast refine film in which light absorption parts and light transmission parts extending in the same direction as scanning electrodes, discharge sustaining electrodes, and the like, which are formed on the plasma display panel, are formed with a certain pitch is stuck to the front substrate of the plasma display panel. This helps to refine contrast and suppress moiré below a proper level. An antireflection film, a color tone film, an electromagnetic radiation preventing film, a near-infrared absorption film, and the like are all disposed in the front panel. This helps to prevent deterioration of each optical film during operation.

Abstract: The invention provides a new PAR 38 lamp/reflector unit comprising a halogen lamp of suitable power, i.e. 100 watts/120 volts, coated with infrared film to reflect infrared energy produced by the halogen lamp back to the filament, making it more efficient; that meets and preferably exceeds the minimum EPACT efficacy standards, that exhibits a median life of at least about 3000 hours, while giving light output greater than 90% from the original value at about 1750 hours. Unit comprises a double-ended electric lamp (10) arranged in a reflector body (1) in a manner that first end portion (21) is at least partly situated in the neck-shaped portion (5), cavity (13) is situated within reflecting portion (2), the electric light source (16) is predominantly situated on the optical axis (4), a ceramic insert (42), beneath mounting ring (40) through which the seal of first end portion (21) is passed, is effective to dissipate heat from first end portion (21) during operation of the lamp.

Abstract: Disclosed is an external light shielding film. The external light shielding film comprises a transparent substrate; and an external light shielding pattern formed on a surface of the transparent substrate and including a plurality of external light shielding parts. Each of the plurality of external light shielding parts has a polymer resin and at least one color-changeable colorant. The color of the plurality of external light shielding parts may vary according to an external heat source or vary depending on an intensity of an external light source, thereby improving a contrast ratio in a bright room, and a specific color may be visible even when the power of the display apparatus is OFF, thereby achieving an interior decorative effect.

Abstract: An organic EL light-emitting apparatus includes a base, an organic EL device, a prism member, a polarizing member, and a phase member. The prism member, the polarizing member, and the phase member are adjacent to a light extraction side of the organic EL device. The prism member includes a plurality of unit prisms each having a triangular-column shape. The unit prisms are arranged such that their longitudinal directions are parallel to one another. The polarizing member is disposed further from the base than the prism member. The prism member has an apex angle between 90° to 140°.

Abstract: A plasma display apparatus is provided having an improved glass filter. The plasma display includes a panel assembly, and a glass filter provided in front of the panel assembly. The glass filter includes a plurality of a dot parts disposed in front of a glass plate to adjust light transmissivity from the panel assembly and external light reflxibility. Thus, the glass filter may be produced simply, thereby lowering the production cost of the glass filter.

Abstract: A coated phosphor, formed by a powder of individual grains of a phosphor as base material, the grains being coated with a coating material. The layer comprises a plurality of individual layers and is particulate in form, the individual primary particles of the layer being at least 5 nm in size. The mean layer thickness is at least 20 nm.

Abstract: A display filter capable of enhancing the visible light transmittance and contrast ratio for a bright room condition and a display device including the same. The display filter includes a filter base, and an external light-shielding layer, disposed on a surface of the filter base, including a matrix made of a transparent resin and a plurality of wedge-shaped black stripes arranged parallel to each other at a surface of the matrix.

Abstract: A variable display structure having a first transmission layer that transmits only a first wavelength light and a second transmission layer that transmits only a second wavelength light are provided on a base layer. The variable display structure displays a first shape or a second shape, depending on the wavelength of emitted light. A first light adjustment layer located at overlapping portions where the first shape and the second shape overlap with each other, and a second light adjustment layer to cover the entire layer face of the base layer, are further formed on the base layer. The transmission characteristics of the second light adjustment layer are the same as the transmission characteristics of the first transmission layer.

Abstract: An electromagnetic wave shielding filter that has low electric conductivity, high visible light transmittance and good durability, a method of manufacturing the electromagnetic wave shielding filter, and a PDP apparatus including the electromagnetic wave shielding filter. The electromagnetic wave shielding filter includes a laminate structure including multiple stacks each consisting of a niobium oxide layer, a first protective layer having a ZnO as a main component, and a metal layer sequentially laminated in that order, the multiple stacks formed by repeatedly laminating the respective layers at least three times, and a niobium oxide layer formed on the laminate structure.

Abstract: A display device comprising at least one substrate(1, 2), a first and a second electrode(7, 8), a display medium (12) and an optically active layer(3, 5), wherein said optically active layer comprises a polarizer (3) and is arranged between said substrate and said display medium, and wherein said substrate is made of a birefringent material.

Abstract: A light-emitting device, comprising: a multi-layer stack of materials supported on an optically transparent support member, a first spatial filter, and a second spatial filter spaced from the first spatial filter. The multi-layer stack including at least one organic light-emitting layers, an anode layer, and a cathode layer. The first spatial filter is disposed intermediate the multi-layer stack of materials and the second spatial filter.

Abstract: An Organic Light Emitting Display (OLED) and its method of fabrication includes: a transparent substrate; a photochromatic layer formed on a first surface of the transparent substrate; at least one transparent Thin Film Transistor (TFT) formed on a first surface of the transparent substrate, and an organic light emitting device formed on and electrically connected to the transparent TFT.

Abstract: A dual emitting device includes a transparent substrate and an array of pixels. The array of pixels is disposed on the transparent substrate, and each pixel of the array includes at least one first sub-pixel and at least one second sub-pixel. The first sub-pixel includes a first OLED driven by a first TFT, and a first sheltering layer on the first OLED. The second sub-pixel includes a second OLED driven by a second TFT, and a second sheltering layer formed between the transparent substrate and the second OLED.

Abstract: An organic light emitting device is disclosed. The organic light emitting device includes a display panel, and a polarizer that is positioned on the display panel and includes a retarder and a polarizing film. The polarizing film includes a base layer and shielding patterns positioned inside the base layer. An area of the shielding pattern close to the display panel is larger than an area of the shielding pattern far away from the display panel. The shielding pattern is formed in a non-emitting area of the display panel.