Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.

Abstract: A liquid crystal display device irradiates a light of a light source from a backside of a liquid crystal panel. A light-guiding plate provided under the liquid crystal panel guides the light of the light source to the liquid crystal panel by transmitting the light therethrough. An optical sheet is arranged between the liquid crystal panel and the light-guiding plate. A backlight housing accommodates the light-guiding plate and the optical sheet. The optical sheet has a protruding part extending outwardly from a periphery thereof. The backlight housing has an opening at a position corresponding to the protruding part.

Abstract: A back light is provided with light sources, lighting control circuits for lighting the light sources, respectively, and a brightness control circuit for outputting light volume adjusting signals to the lighting control circuits, respectively. The brightness control circuit receives a luminance adjusting signal, adjusts only a part of the light volume adjusting signals, and fixes output of the rest of the light volume adjusting signals. The lighting control circuits apply voltages corresponding to the light volume adjusting signals to the light sources, thereby adjusting the light sources in luminance. The light volume adjusting signals can be adjusted one by one, which facilitates luminance adjustment. Thus, by lighting only one light source at the minimum luminance, the screen brightness of the liquid crystal display having this back light can be lowered to an appropriate level when it is used in dark places.

Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.

Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.

Abstract: The invention relates to a display apparatus used as a display part of an information equipment and an illumination device used for the same, and has an object to provide the display apparatus which can obtain excellent display characteristics and the illumination device used for the same. The illumination device includes plural optical waveguides which include diffusion reflecting layers for diffusing and reflecting guided light, light emission surfaces for emitting the diffused and reflected light, and plural light-emitting areas in which the diffusion reflecting layers are formed and which are separated from each other, and which are stacked so that the plural light-emitting areas are disposed almost complementarily when viewed in a direction vertical to the light emission surfaces, and plural light sources respectively disposed at ends of the plural optical waveguides.

Abstract: In a backlight unit, a plurality of light sources whose luminescent chromaticities are different mutually, i.e., a white color fluorescent tube W, a red color fluorescent tube R, a green color fluorescent tube G, and a blue color fluorescent tube B, are arranged on both end in a longitudinal direction of a light guide plate respectively. The white color fluorescent tube W is arranged at a position closest to the end surface in a longitudinal direction of the light guide plate. Luminances of these fluorescent tubes W, R, G, B can be adjusted independently by control voltages supplied from external devices. Lights emitted from a plurality of light sources enter into the light guide plate, and then the lights are emitted from the light guide plate in a predetermined direction. Since the backlight unit itself has a color adjusting function, the reduction of the luminance and the change of the color balance due to degradation of the fluorescent tubes can be corrected.

Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.

Abstract: A back light is provided with light sources, lighting control circuits for lighting the light sources, respectively, and a brightness control circuit for outputting light volume adjusting signals to the lighting control circuits, respectively. The brightness control circuit receives a luminance adjusting signal, adjusts only a part of the light volume adjusting signals, and fixes output of the rest of the light volume adjusting signals. The lighting control circuits apply voltages corresponding to the light volume adjusting signals to the light sources, thereby adjusting the light sources in luminance. The light volume adjusting signals can be adjusted one by one, which facilitates luminance adjustment. Thus, by lighting only one light source at the minimum luminance, the screen brightness of the liquid crystal display having this back light can be lowered to an appropriate level when it is used in dark places.

Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.

Abstract: A back light unit includes a lamp, a lamp house where the lamp is housed, a diffusion plate provided parallel to a main surface of the lamp house, a display part receiving light irradiated from the lamp and displaying, a frame member that has a structure in which the diffusion plate and the display part can be housed inside of the frame member and that detachably connects to the lamp house, and a shield member connected in a range from the diffusion plate to the frame member so that a space between the diffusion plate and the frame member is shielded.

Abstract: A liquid crystal display device irradiates a light of a light source from a backside of a liquid crystal panel. A light-guiding plate provided under the liquid crystal panel guides the light of the light source to the liquid crystal panel by transmitting the light therethrough. An optical sheet is arranged between the liquid crystal panel and the light-guiding plate. A backlight housing accommodated the light-guiding plate and the optical sheet. The optical sheet has a protruding part extending outwardly from a periphery thereof. The backlight housing has an opening at a position corresponding to the protruding part.

Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.

Abstract: In a backlight unit, a plurality of light sources whose luminescent chromaticities are different mutually, i.e., a white color fluorescent tube W, a red color fluorescent tube R, a green color fluorescent tube G, and a blue color fluorescent tube B, are arranged on both end in a longitudinal direction of a light guide plate respectively. The white color fluorescent tube W is arranged at a position closest to the end surface in a longitudinal direction of the light guide plate. Luminances of these fluorescent tubes W, R, G, B can be adjusted independently by control voltages supplied from external devices. Lights emitted from a plurality of light sources enter into the light guide plate, and then the lights are emitted from the light guide plate in a predetermined direction. Since the backlight unit itself has a color adjusting function, the reduction of the luminance and the change of the color balance due to degradation of the fluorescent tubes can be corrected.

Abstract: A liquid crystal display device has a framework which includes a first frame for supporting a liquid crystal panel, a second frame having an upper portion for covering a peripheral portion of the surface of the liquid crystal panel and a side extending substantially parallel to the side of the first frame, and third members being in the form of clips detachably attached to the side of the first frame. The second frame is fixed to the first frame via the third members. The liquid crystal display device also includes a mechanism for changing the angle of the display.

Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.

Abstract: A stereoscopic image display apparatus includes an image display apparatus main body and a multi-angle image information generating unit for generating image information for a plurality of viewing angles from which a three-dimensional object is viewed. The image display apparatus main body includes a liquid crystal panel for displaying an angle-specific image derived from the angle-specific image information supplied from the multi-angle image information generating unit, and an angle-specific image radial distribution unit which, provided at the front of the liquid crystal panel, radially distributes the angle-specific image by providing directivity to a light beam carrying the angle-specific image displayed on the liquid crystal panel and thus directing the angle-specific image to a corresponding angle. When a viewer changes a view position or viewing angle, the viewer can experience one stereoscopic image turning into another.

Abstract: A stereoscopic image display apparatus includes an image display apparatus main body and a multi-angle image information generating unit for generating image information for a plurality of viewing angles from which a three-dimensional object is viewed. The image display apparatus main body includes a liquid crystal panel for displaying an angle-specific image derived from the angle-specific image information supplied from the multi-angle image information generating unit, and an angle-specific image radial distribution unit which, provided at the front of the liquid crystal panel, radially distributes the angle-specific image by providing directivity to a light beam carrying the angle-specific image displayed on the liquid crystal panel and thus directing the angle-specific image to a corresponding angle. When a viewer changes a view position or viewing angle, the viewer can experience one stereoscopic image turning into another.

Abstract: A light emissive panel unit includes a light source for emitting light, a prism plate into which the light emitted by the light source means incident, a part of the light being reflectable and another part of the light passing through the prism plate, and an adjusting element for partially adjusting an amount of light emitted from a surface of the prism plate.

Abstract: An object of the present invention is to provide a light guide device which can emit light rays of high directivity with high efficiency irrespective of incident angles, and a light source device using the light guide device which can provide light rays of high directivity with high efficiency irrespective of emitting characteristics of light source lamps, and a liquid crystal display device which is small-sized and can display at very high luminance and is free from color tone changes depending on visual angles over a wide field angle.