JP2009048169A5 - - Google Patents

Claims (14)

It is equipped with a plurality of concave solid parts arranged on the front side on the screen substrate,
The three-dimensional portion of the three-dimensional portion provided in a range of a predetermined length along a first direction on the screen substrate that is determined corresponding to at least one of a principal ray direction and a principal direction of external light. The number is arranged to be larger than the number provided in the range of the predetermined length along the second direction intersecting the first direction,
The screen, wherein the plurality of three-dimensional parts are arranged so that at least two of the three-dimensional parts provided in a range of a predetermined length along the first direction are in contact with each other.   2. The screen according to claim 1, wherein the plurality of three-dimensional parts are substantially hemispherical recesses recessed from the surface of the screen substrate. Provided with a plurality of convex solid parts arranged on the front side on the screen substrate,
The three-dimensional portion of the three-dimensional portion provided in a range of a predetermined length along a first direction on the screen substrate that is determined corresponding to at least one of a principal ray direction and a principal direction of external light. The number is arranged to be larger than the number provided in the range of the predetermined length along the second direction intersecting the first direction,
A screen in which at least two solid portions of the solid portions provided in a range of a predetermined length along the first direction are arranged so as to contact each other.   The screen according to claim 3, wherein the plurality of three-dimensional parts are substantially hemispherical protrusions protruding from the surface of the screen substrate.   The screen according to any one of claims 1 to 4, wherein at least some of the plurality of three-dimensional parts form a group that is continuous with each other by superposition of basic shapes.   The at least one part of these solid parts is arranged so that adjacent solid parts may touch in the same row along the 1st direction. Screen.   7. The screen according to claim 1, wherein at least some of the plurality of three-dimensional parts are spaced apart from each other by a predetermined interval in the second direction.   The screen according to any one of claims 1 to 7, wherein the first direction is a direction of a line of intersection between a plane perpendicular to the principal ray of the projection light and the screen surface.   The screen according to any one of claims 1 to 8, wherein the first direction is a horizontal direction.   The screen according to any one of claims 1 to 9, wherein the second direction is a vertical direction.   The screen according to any one of claims 1 to 10, wherein the first direction and the second direction intersect perpendicularly.   The plurality of three-dimensional parts have a light reflection surface and a light absorption surface, and a boundary between the light reflection surface and the light absorption surface is along the first direction. The screen according to any one of the above. On the front side of the screen substrate, a flat portion is provided between the three-dimensional portions,
The screen according to claim 1, wherein the flat portion has a light absorption surface. The plurality of three-dimensional parts have the light absorbing surface or the absorbing surface in a peripheral part of the light reflecting surface,
The screen according to any one of claims 12 and 13 .