Multi-display device

A multi-display devices comprising:

• a plurality of projectors for projecting partial images on a screen so that adjoining partial images will overlap to have margins thereof superposed on each other, the plurality of partial images being synthesized to construct one image, and each projector including an illuminator that radiates light resulting in light source images which are two-dimensionally arrayed, a splitter that splits light radiated from said illuminator into three color light components of red, green, and blue, a red green, and blue color display whose colors are illuminated independently of one another with the light components of red, green, and blue propagated from said splitter and that displays red, green, and blue partial images, a luminous flux synthesizer that synthesizes light rays which are polarized light rays representing the color partial images displayed on said red, green, and blue color display, and a projecting optical system that projects light, which is propagated from said luminous flux synthesizer, on said screen;
• and
• an interceptor for intercepting the marginal part of light, which is projected as a partial image, on a light path linking said luminous flux synthesizer and said screen, and lowering the luminance in a portion of one partial image to be superposed on a portion of an adjoining partial image so that the luminance in the superposed portion will be substantially identical to the luminance in the other portions of the partial images which are not superposed on each other, said interceptor including a sheet interceptor that is placed so that the axis of polarization thereof will cross the directions of polarization in which an unnecessary color light component is polarized.

A multi-display device, comprising:

• a plurality of projectors for projecting partial images on a screen so that adjoining partial images will overlap to have margins thereof superposed on each other, the plurality of partial images being synthesized to construct one image, and each projector including:
• an illuminator that radiates light resulting in light sources which are two-dimensionally arrayed;
• a splitter that splits light radiated from said illuminator into three color light components of red, green, and blue;
• a red, green, and blue color display whose colors are illuminated independently of each other with the red, green, and blue light components propagated from said splitter and display red, green, and blue partial image;
• a luminous flux synthesizer that synthesizes light rays which are propagated as the color partial images from said red, green, and blue color display;
• and a projecting optical system that projects light propagated from said luminous flux synthesizer on said screen;
• and
• an interceptor for intercepting the marginal part of light, which is projected as a partial image, on a light path linking said luminous flux synthesizer and said screen, and for lowering the luminance in a portion of one partial image to be superposed on a portion of an adjoining partial image so that the luminance in the superposed portion will be substantially identical to the luminance in the other portions of the partial images which are not superposed on each other, wherein:
• a partial image is divided into a sub-partial image having one of the three colors of red, green, and blue and a sub-partial image having the other two colors;
• when the sub-partial images are displaced, first color disjunction relevant to one color and second color disjunction relevant to the other two colors occur in the margins of the partial image;
• adjoining projectors included in said plurality of projectors share the same superposed portion area on said screen;
• one of the adjoining projectors projects a portion of a partial image suffering the first color disjunction at the superposed-portion area, and the other projector projects a portion of a partial image suffering the second color disjunction at the superposed-portion area, whereby the color disjunctions are thus canceled out in the superposed-portion area.