An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

Semiconductor device, and manufacturing method thereof

An electrical powered vehicle includes a secondary self-resonant coil, a secondary coil, a rectifier, and a power storage device. The secondary self-resonant coil is configured to be magnetically coupled with a primary self-resonant coil of a power feeding device by magnetic field resonance, and allow reception of high frequency power from the primary self-resonant coil. The secondary coil is configured to allow reception of electric power from the secondary self-resonant coil by electromagnetic induction. The rectifier rectifies the electric power received by the secondary coil. The power storage device stores the electric power rectified by the rectifier.

Electrical powered vehicle and power feeding device for vehicle

An object is to provide favorable interface characteristics of a thin film transistor including an oxide semiconductor layer without mixing of an impurity such as moisture. Another object is to provide a semiconductor device including a thin film transistor having excellent electric characteristics and high reliability, and a method by which a semiconductor device can be manufactured with high productivity. A main point is to perform oxygen radical treatment on a surface of a gate insulating layer. Accordingly, there is a peak of the oxygen concentration at an interface between the gate insulating layer and a semiconductor layer, and the oxygen concentration of the gate insulating layer has a concentration gradient. The oxygen concentration is increased toward the interface between the gate insulating layer and the semiconductor layer.

Semiconductor device and method for manufacturing the semiconductor device

An organic light-emitting display device and a method of its manufacture are provided, whereby manufacturing processes are simplified and display quality may be enhanced. The display device includes: an active layer of a thin film transistor (TFT), on a substrate and including a semiconducting material; a lower electrode of a capacitor, on the substrate, doped with ion impurities, and including a semiconducting material; a first insulating layer on the substrate to cover the active layer and the lower electrode; a gate electrode of the TFT, on the first insulating layer; a pixel electrode on the first insulating layer; an upper electrode of the capacitor, on the first insulating layer; source and drain electrodes of the TFT, electrically connected to the active layer; an organic layer on the pixel electrode and including an organic emission layer; and a counter electrode facing the pixel electrode, the organic layer between the counter electrode and the pixel electrode.

Organic light emitting display device and method of manufacturing the same

A projection-type image display apparatus for projecting an image, enlargedly, onto a projection surface, comprises: an image display element; a lens group, being disposed behind the image display element, comprising therein, a front lens group made up with a plural number of lenses, including, at least, a refractive lens, having a positive power and being rotationally symmetric in a surface configuration thereof, and a rear lens group made up with a plural number of lenses, including, at least, a lens having a free curved surface configuration and being rotationally asymmetric, thereby emitting the image displayed on the image display element; a reflection mirror for reflecting the light from the lens group, thereby projection onto the projection surface, obliquely; a first mounting base, on which the rear lens group is mounted; and a rod member, which is provided on the mounting base for moving the mounting base.

Projection Type Image Display Apparatus

PROBLEM TO BE SOLVED: To provide a transmission type screen preventing the deterioration of contrast due to external light rays such as indoor illumination. SOLUTION: The transmission type screen comprises a Fresnel lens sheet formed with a Fresnel lens element on the surface of observer side and a light shielding sheet 13 arranged on the observer side of the Fresnel lens sheet. Light shielding elements 22 absorbing the external light ray which undergoes total reflection on the surface of projection light source side of the Fresnel lens sheet among the external light rays 2 made incident from the observer side and exits the light rays to the observer side are formed on the light shielding sheet 13 and, thereby, the deterioration of contrast due to external light rays is prevented. Therein, it is preferable that the light shielding elements transmit the external light rays transmitted/reflected in the light shielding sheet at an angle θ which satisfies at least θ COPYRIGHT: (C)2005,JPO&NCIPI

Transmission-type screen

The present invention relates to a diffusion sheet for use in a transmission-type screen comprising a main diffusion layer having an incidence surface and an emergence surface which are parallel to each other, the main diffusion layer diffusing a light, which is substantially perpendicularly incident on the incidence surface, in a diffusion direction to be emitted from the emergence surface. A plurality of groove channels each having a substantially V-shaped cross-section are disposed in parallel to one another on the emergence surface of the main diffusion layer, and each groove channel are formed by two planes, curved surfaces, or bent planes which are joined to each other in the main diffusion layer. A region sandwiched between the adjacent two groove channels provides a rib with a substantially trapezoidal cross-section, while the planes, curved surfaces, or bent planes which form each groove channel provide side surfaces of the rib. The light substantially. perpendicularly incident on the incidence surface is reflected on the side surfaces of the rib so that the light is diffused in the diffusion direction. An assisting diffusion layer is disposed on the side of the emergence surface of the main diffusion layer, or on both sides of the emergence surface and the incidence surface of the main diffusion layer, the assisting diffusion layer having a light diffusion component for diffusing a light at least in the same direction as the diffusion direction. The light diffusion component of the assisting diffusion layer is adjusted such that a gain curve of an emergent light from the diffusion sheet has no minimal point.

Diffusion sheet for use in transmission-type screen and transmission-type screen

The present invention provides a method for manufacturing optical sheet having an improved appearance, optical sheet, and an image display device having the optical sheet. The method for manufacturing optical sheet having a plurality of layers in which at least one layer is an optical functional sheet layer comprises: light-transmissive portions configured to be arranged in a row along the surface of a base material layer; and light-absorbing portions arranged between the light-transmissive portions, the method comprising the steps of: forming the light-transmissive portions on one side of the base material layer; and forming the light-absorbing portions repeatedly by filling a binder made of a resin in which light-absorbing particles are dispersed in the gaps between the light-transmissive portions and curing the binder, wherein at least the last step of the repeating step for forming the light-absorbing portions is carried out so that the density of the light-absorbing particles contained in the binder is lower than the density of the same at the first step for forming the light-absorbing portion. The optical sheet is produced by the method; and the image display device is provided with the optical sheet.

Method for producing optical sheet, optical sheet, and image display device

A light diffusing screen for a single light source-type rear projection television, for use in combination with a Fresnel lens sheet, which can reduce scintillation and, regulate the surface roughness of the screen and provide good images. The light diffusing screen includes: a lens layer which can horizontally refract projected light; and a light diffusing layer provided on a light outgoing side as compared with the lens layer. The light diffusing layer includes a light transparent matrix and light diffusing fine particles formed of a light transparent material dispersed in the light transparent matrix. The light diffusing layer has a multilayer structure of which the outermost layer on the light outgoing side of the light diffusing layer is a layer which diffuses light most strongly, the outermost surface layer on the light outgoing side in the light diffusing screen having a surface roughness Ra of 0.2 μm≦Ra≦1.0 μm.

Light diffusing screen

PROBLEM TO BE SOLVED: To provide an ultraviolet-curing resin composition excellent in adhesion by mixing a specified (meth)acrylate with a specified polyesterurethane (meth) acrylate, a plasticizer, an aromatic-ring-containing monofunctional (meth)acrylate and a photopolymerization initiator. SOLUTION: A polyester polyol obtained from a diol represented by the formula (R to R are each H or methyl; m and n are each 1-15; and m+n=2-20) and a dicarboxylic acid is reacted with an organic diisocyanate, and the product is reacted with a hydroxy (meth)acrylate to prepare a urethane (meth)acrylate (B). A (meth)acrylate (A) containing a hydroxyl group and an aromatic ring (e.g. 2-hydroxy-3-phenoxypropyl (meth)acrylate), component B, a plasticizier (C) of a solubility parameter of 10-11.5 and an aromatic-ring-containing monofunctional (meth)acrylate (D) (e.g. phenyl (meth)acrylate) are mixed with each other in an A/B/C/D mixing weight ratio of (20-70)/(10-60)/(1-20)/(5-30), and a photopolymerization initiator is added to the resultant mixture to obtain an ultraviolet-curing resin composition.

Futoshi Osawa

Papers

Transmission-type screen

Diffusion sheet for use in transmission-type screen and transmission-type screen

Method for producing optical sheet, optical sheet, and image display device

Light diffusing screen

Ultraviolet-curing resin composition for fresnel lens and transmission screen