Method for manufacturing rear-projection type screen having sheets with protrusions integrally formed thereon
To provide a rear-projection type screen in which, without the need for a tape-attachment operation on the outer circumferential part of the lens sheets, the top of the Fresnel lens can be prevented from being pared by the abrasion caused by the vibration during transportation. A rear-projection typ...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
23.05.2006
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| Online Access | Get full text |
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| Summary: | To provide a rear-projection type screen in which, without the need for a tape-attachment operation on the outer circumferential part of the lens sheets, the top of the Fresnel lens can be prevented from being pared by the abrasion caused by the vibration during transportation. A rear-projection type screen according to the present invention is configured from two or more overlapping sheet-like members such as a Lenticular lens sheet and Fresnel lens sheet , in which a fixing protrusion is integrally formed in the sheet-like members in such way that neither of the two sheet-like members is displaced from the state in which the two sheet-like members overlap. A protrusion, used to attach the rear-projection type screen to the main body of a rear-projection-type image display apparatus or the screen frame, may be integrally formed in the sheet-like members from which the rear-projection type screen is configured. In addition, a protrusion, which produces a gap between the top of a lens in one of the sheet-like members and the other sheet-like member in a state in which the two sheet-like members overlap, may be integrally formed in the sheet-like members. |
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