| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission-type screen with which the deterioration of a video quality is prevented by preventing the occurrence of an irregular fingerprint-like defective pattern, because especially the Fresnel lens apex part of the peripheral part at a screen effective area is crushed and deformed by a lenticular lens sheet, in the transmission-type screen constituted by combining the lenticular lens sheet and a Fresnel lens sheet. SOLUTION: A projected spacer is provided at the peripheral part of the Fresnel lens sheet, and the Fresnel lens sheet and the lenticular lens sheet are separated in the screen effective area, so as to satisfy the relation of Ta>=10×Tb, if the thickness of the spacer is defined as Ta, and the lens part thickness of the peripheral part of the Fresnel lens sheet is defined as Tb.
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