Sony Corporation

Dexerials Corporation

Naoji Nada

Yasushi Ito

Tsubasa Tsukahara

Yoshihiro Oshima

Hideya Chubachi

Ryo Kasegawa

Shozo Masuda

Tetsuyuki Yoshida

Hideo Kawabe

Toshitaka Kawashima

Kazuhito Shimoda

Toshifumi Nakamura

Satoshi Tomioka

Yasutoshi Katsuda

Mitsunori Ueda

Katsuhiro Yoneyama

Junichi Osako

Yasuro Nakagawa

Hideaki Inoue

Ryo Koshi Ishi

Yoshiro Oshima

A color converting member is capable of suppressing deterioration in a phosphor by a simple manufacturing process. A method of manufacturing a color converting member includes a process of molding a resin material into a shape. In the process, molding the resin material and the phosphor integrally into a shape is performed, after kneading a phosphor that converts one color light to another color light into the resin material.

Method of manufacturing color converting member

An optical member realizing suppressed occurrence of a light loss between a phosphor layer performing color conversion and itself, and a display device using the same is provided. The optical member includes a base member having two opposed surfaces, and a phosphor layer provided integrally with one surface of the base member and containing a phosphor that converts a color light to another color light.

Optical member and display device

Color converting member, method of manufacturing the same, light emitting device, and display device

A light source device capable of suppressing generation of color unevenness, and a display device using the same are provided. The light source deviceis provided with a plurality of excitation light sourceswhich are arranged at prescribed intervals D on a substrateand emit blue light, and a phosphor layerwhich converts part of the blue light emitted from the excitation light sources into red light and green light and arranged at a distance from the excitation light sourcesto oppose the substrate. Fluctuation of intensity of each color light due to nonuniform application of the phosphor layer is difficult to occur as compared with a configuration in the past where the phosphor layer is formed adjacent to each excitation light source.

Light source device and display device

A phosphor sheet having a laminated structure including a first barrier material, a first barrier material, a first color conversion layer, a second color conversion layer, and a second barrier layer and a display unit and an illuminating device including display unit is provided. A diffusion plate and a display unit including a diffusion plate are also provided.

Phosphor sheet, a diffusion plate, an illuminating device, and a display  unit

There is provided is a display device capable of suppressing deterioration of the color conversion layer which converts one color light into another color light, and realizing favorable handling and a display device using the color conversion layer, and a color conversion sheet. A phosphor sheetis, for example, arranged immediately above a light source such as a blue light emitting diode, and obtained by sealing a phosphor layer, which converts a part of blue light into another color light, by sealing sheetsA andB. The sealing sheetsA andB are bonded with the phosphor layerin between by a first bonding layerand a second bonding layer. Since the phosphor layeris sealed by the sealing sheetsA andB including a water vapor barrier layerheld between resin sheetsA andB, water vapor is prevented from entering into the phosphor layer, and a chemical reaction is less likely to be generated between the phosphor layerand the water vapor barrier layer

Light emitting device, display device, and color conversion sheet

[Object] To provide an illumination apparatus capable of suppressing a chromaticity fluctuation due to a view angle and an incident angle. [Solving Means] In an illumination apparatus for a display apparatus that includes a blue-color light-emitting diode () as a light source and a phosphor sheet () including a phosphor that obtains white light by converting a color of blue light from the blue-color light-emitting diode (), diffusion plates () are respectively provided opposed to a light-emitting-side surface and a light-incident-side surface of the phosphor sheet (). The diffusion plate () opposed to the light-emitting-side surface of the phosphor sheet () suppresses a fluctuation of white-color chromaticity due to a view angle, and the diffusion plate () opposed to the light-incident-side surface of the phosphor sheet () suppresses a fluctuation of white-color chromaticity due to an incident angle.

Illumination apparatus, display apparatus, and method of producing an illumination apparatus

A color conversion sheet realizing suppression of deterioration in a color conversion layer and improvement in light extraction efficiency is provided. The color conversion sheet includes: a color conversion layer converting a part of first color light as incident light to second color light having a wavelength longer than that of the first color light; and a pair of sealing sheets sandwiching the color conversion layer from a light incidence side and a light emitting side and each having an inorganic stack film on a substrate. Reflectance of the sealing sheet on the light incidence side to the second color light is higher than that to the first color light, and reflectance of the sealing sheet on the light emitting side to the first color light is higher than that to the second color light.

Color conversion sheet, illumination device, and display device

An image pickup apparatus includes a light-beam splitting mirror configured to transmit and reflect incident light that has entered the light-beam splitting mirror through a photographing optical system; an image sensor that receives light transmitted through the light-beam splitting mirror; an autofocus detecting unit that receives light reflected by the light-beam splitting mirror; a signal processing unit configured to process an image pickup signal of the image sensor; and a display unit configured to display an image being photographed, on the basis of an image signal obtained at the signal processing unit. In the image pickup apparatus, the light-beam splitting mirror has spectral characteristics including a reflectivity of 25% or more and 35% or less at a wavelength of 400 to 650 nm and a reflectivity of 60% or more at a wavelength of about 700 nm through optimization.

Image pickup apparatus

An illumination apparatus includes a transparent substrate, a phosphor layer, an optical wavelength selection filter layer, and a light-emitting device. The transparent substrate includes a first surface and a second surface opposing each other. The phosphor layer is disposed on the first surface side of the transparent substrate. The optical wavelength selection filter layer is disposed on the second surface side of the transparent substrate and configured to transmit light of a first wavelength therethrough and reflect light of a second wavelength that is emitted from the phosphor layer by being excited by the light of the first wavelength. The light-emitting device is configured to emit the light of the first wavelength from the optical wavelength selection filter layer side thereof toward the optical wavelength selection filter layer.

Illumination apparatus, color conversion device, and display apparatus

A semiconductor light emitting device capable of improving the light extraction efficiency while preventing deterioration of the light emission characteristic with time and a semiconductor light emitting device assembly including the semiconductor light emitting device are provided. The semiconductor light emitting device includes a semiconductor light emitting element containing a metal element, a cap portion formed from a material which contains a sulfur or halogen element and which is capable of transmitting the light from the semiconductor light emitting element, and a shielding film which is disposed between the semiconductor light emitting element and the cap portion, which transmits the light from the semiconductor light emitting element to the cap portion, and which separates the semiconductor light emitting element side and the cap portion side.

Semiconductor light emitting device and semiconductor light emitting device assembly

An optical device is provided. The optical device including an optical member having a first main surface and a second main surface, which respectively serve as an entrance surface and an exit surface for light from a directional light source, and made of a material having a refractive index greater than 1; and a support member at least including swing means for the optical member, wherein the first and second main surfaces of the optical member swingable by the support member are able to be inclined with respect to an optical path of the light from the directional light source.

Optical device, light irradiation apparatus and light irradiation method

A light-emitting diode device and backlight apparatus and liquid-crystal display apparatus using light-emitting diode device are provided. A light-emitting diode device has a lens covered around a light-emitting diode chip and a processed portion for adjusting light going from the light-emitting diode chip along the central axis of the lens is provided at the light-emitting diode chip or the lens or being provided right above the lens. The light-emitting diode chip is processed near the central axis by a suitable method such as etching. Alternatively, a diffusion material containing low refractive index material portion or an angle selective film is provided on the lens. A light-emitting diode device is able to adjust a quantity of light emitted from the LED chip along the central axis of the lens so that light can be radiated with a desired angle distribution. A backlight apparatus and a liquid-crystal display apparatus are able to suppress ununiformity of brightness and ununiformity of color by using the above-mentioned light-emitting diode device.

Light-emitting diode device and backlight apparatus and liquid-crystal display apparatus using light-emitting diode device

A semiconductor light-emitting device having a semiconductor light-emitting chip; a high refractive index lens covering around the semiconductor light-emitting chip; and a resin having fine particles mixed therein that fills a space between the semiconductor light-emitting chip and the lens is provided. In the semiconductor light emitting device, the resin having fine particles mixed therein is composed of an optically transparent resin into which a large number of high refractive fine particles having a mean diameter of 100 nm or less and composed of a dielectric material are mixed uniformly to have a distance 200 nm or less between respective particles.

Semiconductor light emitting device

An semiconductor device and a method for manufacturing semiconductor devices which are easily made compact. A plurality of semiconductor chips having protrusion electrodes respectively provided on a plurality of electrodes formed on circuit surfaces are integrally sealed by an insulating material so as to cover the circuit surfaces while the circuit surfaces are nearly directed to the same direction and arranged in prescribed conditions, and to expose the respective protrusion electrodes; and insulating layers and wiring layers respectively electrically connected to the corresponding protrusion electrodes are alternately laminated on the insulating material so as to have the desired number of layers in the direction of thickness. Thus, the spaces between the semiconductor chips can be extremely narrowed, and the thickness of the insulating layers and wiring layers can be significantly reduced, so that the semiconductor devices which can be made compact without difficulty and the method capable of easily manufacturing the semiconductor devices in compact forms can be realized.

Growing community of inventors

Kanagawa, Japan

Naoji Nada