| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a projection screen device which enables an about 20-40 inch type projection screen to be easily stood, to be used on a table and the like, to be compactly folded and stored in a small bag, a case and the like which stores an about A4 size, and to be carried. <P>SOLUTION: In the projection screen device of this invention, a pair of cross-sectionally U-shaped groove members 30A are fixed to both side ends 11A and 11A of a rear surface of a projection screen 10A which can be folded without a fold line. Both ends 21 and 21 of a back sheet 20, which is wider than the projection screen 10A, can be elastically curved and folded, are detachably inserted into the respective groove members 30A so as to latch the screen. <P>COPYRIGHT: (C)2012,JPO&INPIT |
