Abstract:
PROBLEM TO BE SOLVED: To provide a reflection type screen capable of widening color gamut by adjusting the balance of the three primary colors, R, G and B, of image light and by improving the chromatic purity of the three colors, R, G and B, which yield other colors. SOLUTION: The reflection type screen 10 is formed by sticking together a refection sheet 1 and an optical diffusion sheet 3 via an adhesive layer 2, and displays images by reflecting light from a light source, wherein the adhesive layer 2 contains a pigment that absorbs light of a specific wavelength range. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a transmission type screen on which high contrast images can be displayed by eliminating the adverse effect of outdoor daylight. SOLUTION: A filter 9 that transmits light of a prescribed wavelength area corresponding to projected light and absorbs light of a visible wavelength area except light of the prescribed wavelength area is disposed between a Fresnel lens 1 and a lenticular lens 11. Such a filter 9 has reflection faces on both of its sides, at least one of which has high reflection properties to light of prescribed wavelength area, and is obtained by arranging selective reflection layers 3 at an angle of 45° to the axial direction of incident light and in the direction of light reflection, each selective reflection layer 3 being a selective reflection face which has high absorption properties to light of the visible wavelength area except the prescribed wavelength area. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a rear projector device with which a high contrast image can be projected by eliminating the effect of outside light. SOLUTION: The rear projector device 10 includes: a projecting part (projector light source 1) which projects image light; a reflecting mirror 2 which reflects light L P projected from the projecting part; and a screen 3 onto which light L R reflected from the reflecting mirror 2 is projected from back. The reflecting mirror 2 has reflection properties relative to light in a prescribed wavelength band corresponding to the image light, and also absorption properties relative to light in a visible wavelength band excepting the prescribed wavelength band. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation:要解决的问题:提供通过消除外部光的影响来投射高对比度图像的后投影仪装置。 解决方案:后投影仪装置10包括投影图像光的投影部(投影光源1) 反射从投影部突出的光L P SB>的反射镜2, 以及从反射镜2反射的光L R SB>从背面突出的屏幕3。 反射镜2相对于与图像光对应的规定波长带中的光具有相对于除了规定波长带之外的可见波长带中的光的吸收特性的反射特性。 版权所有(C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To improve chromaticity of white light that illuminates a color liquid crystal display panel. SOLUTION: A wavelength selection filter 22 is provided that transmits the white light emitted from white LED and approximates the chromaticity of the white light to X=0.3 and Y=0.3 that illuminates the color display panel 10 depending on the white LED used in the light source 21, and the liquid crystal display panel 11 is illuminated by the light emitted via the wavelength selection filter 22. The wavelength selectivity of the wavelength selection filter 22 is controlled by adjusting the thickness of a high refractive index layer H and a low refractive index layer L. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a backlight light source device for liquid crystal display to secure more faithful color reproducibility, its wavelength selection filter, a color liquid crystal display, and a filter configuration method, wherein a transmission type color liquid crystal display panel is illuminated from a rear surface side to display colors of a wide range and to secure high luminance. SOLUTION: The transmission type color liquid crystal display panel 10 is illuminated from the rear surface side by using a backlight light source device 20 provided with a wavelength selection filter 25 comprising an optical multilayered film formed by alternately laminating high refractive index layers comprising a high refractive index material and low refractive index layers comprising a low refractive index material having a refractive index lower than that of the high refractive index material and having a high transmission characteristic to light of a plurality of specified wavelength regions transmitted through a color filter 19 provided on the transmission type color liquid crystal display panel 10 and no high transmission characteristic to light of a visible wavelength region other than at least the specified wavelength regions and a white light source 21 and an auxiliary light source 22 illuminating the color liquid crystal display panel 10 from the rear surface side via the wavelength selection filter 25. COPYRIGHT: (C)2005,JPO&NCIPI