Abstract: An antireflection film capable of reliably preventing light (or laser light), which is incident on a glass substrate and which reaches a metal film, from being reflected by the metal film. The antireflection film provided between a metal film having a complex refractive index represented by NM=nM?i·km and a glass substrate having a refractive index NG includes, from the metal film side: (A) a first dielectric layer having a refractive index N1; (B) a second dielectric layer provided on the first dielectric layer and having a refractive index N2; and (C) a third dielectric layer provided on the second dielectric layer and having a refractive index N3, in which N1<nM, N1>NG, N2<NG, and N3>NG hold. Accordingly, light which is incident on the glass substrate and which reaches the metal film is prevented from being reflected by the metal film.

Abstract: Disclosed is a liquid lens apparatus. The liquid lens apparatus includes a liquid lens element and a fixing jig. The liquid lens element includes a main body, a lens surface, and a sealing portion, the main body including a first substrate, a second substrate, and a third substrate that is disposed between the first substrate and the second substrate and forms a liquid chamber, the lens surface being formed of an interface between two liquids which are contained in the liquid chamber and have different refractive indexes and being capable of being electrically deformed, the sealing portion hermetically sealing the main body. The fixing jig is engaged with the first substrate and the second substrate, the first substrate and the second substrate sandwiching the third substrate.

Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.

Abstract: An evaluation method of a display device includes steps of obtaining a measured value of color difference, for the display device to be evaluated which is in a state of displaying a predetermined color reference image, determining a detection limit value of color difference for the display device, in consideration of spectral luminous efficiency which has a dependence on color, with use of a subjective evaluation result of color difference obtained for the display device which is in a state of displaying both the color reference image and a color comparison image in parallel, determining an evaluation parameter with use of the measured value of color difference and the detection limit value of color difference; and evaluating a display property of the display device with use of the evaluation parameter.

Abstract: Disclosed is a liquid lens apparatus. The liquid lens apparatus includes a liquid lens element and a fixing jig. The liquid lens element includes a main body, a lens surface, and a sealing portion, the main body including a first substrate, a second substrate, and a third substrate that is disposed between the first substrate and the second substrate and forms a liquid chamber, the lens surface being formed of an interface between two liquids which are contained in the liquid chamber and have different refractive indexes and being capable of being electrically deformed, the sealing portion hermetically sealing the main body. The fixing jig is engaged with the first substrate and the second substrate, the first substrate and the second substrate sandwiching the third substrate.

Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.

Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.

Abstract: In a contactless IC card (1), a rectification circuit (17) rectifies an electromagnetic wave received via an antenna (10) to provide a DC voltage, and an electric double-layer capacitor (18) quickly stores the power from the rectification circuit (17). The electric double-layer capacitor (18) supplies the electric power to circuits such as a modem (11), CPU (12), memory (13), controller IC (14), driver IC (15), etc. for operation, and rewrites information for display on a display device (16) using a cholesteric liquid crystal, ferroelectric liquid crystal or the like.

Abstract: A three-dimensional-image display apparatus includes a projecting unit having a projection plane and a plurality of projecting elements for projecting images having parallax therebetween through the projection plane; a display for displaying a three-dimensional image by receiving the images projected from the plurality of projecting elements; and a common lens for guiding rays of the images to the display, the common lens being arranged between the projection plane and the display and having a focal length larger than a distance between the projection plane and the display.

Abstract: There is provided an antireflection film capable of reliably preventing light (or laser light), which is incident on a glass substrate and which reaches a metal film, from being reflected by the metal film. The antireflection film provided between a metal film having a complex refractive index represented by NM=nM?i·km and a glass substrate having a refractive index NG includes, from the metal film side: (A) a first dielectric layer having a refractive index N1; (B) a second dielectric layer provided on the first dielectric layer and having a refractive index N2; and (C) a third dielectric layer provided on the second dielectric layer and having a refractive index N3, in which N1<nM, N1>NG, N2<NG, and N3>NG hold. Accordingly, light which is incident on the glass substrate and which reaches the metal film is prevented from being reflected by the metal film.

Abstract: The three-dimensional image display apparatus of the present invention includes an optical modulator array which modulates the light intensity of an incident light to be an image signal light and an optical deflector array which shifts an image focusing position of each pixel light from the optical modulator array in the direction of an optical axis to form a three-dimensional section image, wherein the optical modulator array is formed of a diffractive type array in which a plurality of light reflective films are driven and correspond to a light of one pixel and the optical reflector array is formed of an array in which a plurality of light reflective films are driven and correspond to a light of one pixel.

Abstract: An input device and an electronic apparatus using such an input device capable of providing visual amusement at the time of operating thereof and allowing the down sizing and thinning are provided. The input device has a reversible chromatic layer exhibiting color change in response to temperature change, and a sheet-type input portion laminated on the reversible chromatic layer and activates ON operation upon being pressed.

Abstract: A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.

Abstract: In a contactless IC card (1), a rectification circuit (17) rectifies an electromagnetic wave received via an antenna (10) to provide a DC voltage, and an electric double-layer capacitor (18) quickly stores the power from the rectification circuit (17). The electric double-layer capacitor (18) supplies the electric power to circuits such as a modem (11), CPU (12), memory (13), controller IC (14), driver IC (15), etc. for operation, and rewrites information for display on a display device (16) using a cholesteric liquid crystal, ferroelectric liquid crystal or the like.

Abstract: A clear image unaffected by the brightness of the projection environment. The projection screen according to the present invention is a projection screen for projecting thereupon narrow-band tricolor wavelength band light to display an image, and comprises an optical thin film (3) which has high reflection properties regarding the narrow-band tricolor wavelength band light, and has high transmission properties regarding at least visible wavelength band light other than the wavelength band light, on a screen base (2). With the projection screen according to the present invention configured as above, the optical thin film (3) serves as a so-called band filter. That is to say, the optical thin film (3) particularly reflects narrow-band tricolor wavelength band light and transmits light of other wavelengths, thereby functioning as a narrow-band tricolor wavelength bandwidth filter acting to separate these.

Abstract: The present invention has been made to form a reflecting polarizer without using a high-birefringence polymer. The present invention provides a reflecting polarizer that transmits a first linear polarization component that oscillates parallel to a first polarization plane of an incident light and reflects a second linear polarization component that oscillates parallel to a second polarization plane perpendicular to the first polarization plane by utilizing birefringence characteristics to polarize/split the incident light, comprising a dielectric multilayer film obtained by stacking, a plurality of times in an alternate manner, a high refractive index layer formed using a dielectric material having birefringence characteristics, and a low refractive index layer formed using a dielectric material having a refractive index which is substantially the same as one of the refractive indexes that the dielectric material having birefringence characteristics has.

Abstract: A liquid crystal display having a wide color reproduction range is provided. A liquid crystal display includes a liquid crystal panel driven based on image signals, a light source emitting light for illuminating the liquid crystal panel, and a light selective transmission filter, which has wavelength selective transmission characteristics corresponding to spectral characteristics of the light source, selectively transmits light generated from the light source in the specific wavelength regions based on the wavelength selective transmission characteristics, and guides the transmitted light to the liquid crystal panel.

Abstract: The present invention is to provide a three-dimensional image display apparatus, in which three-dimensional images of a moving image and a still image are directly obtained without using a hologram technology and a high speed operation can be attained. The three-dimensional image display apparatus of the present invention includes an optical modulator array which modulates the light intensity of an incident light to be an image signal light and an optical deflector array which shifts an image focusing position of each pixel light from the optical modulator array in the direction of an optical axis to form a three-dimensional section image, wherein the optical modulator array is formed of a diffractive type array in which a plurality of light reflective films are driven and correspond to a light of one pixel and the optical reflector array 4 is formed of an array in which a plurality of light reflective films are driven and correspond to a light of one pixel.

Abstract: A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.

Abstract: A projection screen includes a plurality of convex portions serving as a light diffusion control portion, on the surface of a substrate. An optical thin film overlies the substrate and has convex portions having the same shape as that of the convex portions of the substrate. When external light enters the optical thin film with light in three primary color wavelength bands, the optical thin film reflects only the light in the three color wavelength bands and absorbs at least visible light of the external light. When light in the three primary color wavelength bands perpendicularly enters the optical thin film, the rays of the light have incident angles at the convex portions of the optical thin film and diffuse-reflected at angles twice the incident angles. Thus, a predetermined percentage of the light is diffused to increase the viewing angle of the screen.