| 摘要 |
PURPOSE: To provide a take-up type highly gained screen constituted so that it does not laterally wrinkle. CONSTITUTION: This is the take-up type screen 2 wound round a take-up core 1. As the take-up core 1, the take-up core with level difference 3 whose radius is gradually increased between the position of 0 deg. and the position of 360 deg. and whose difference between the radius at the position of 360 deg. and the radius at the position of 0 deg. becomes (t) is adopted. As the screen 2, the screen whose thickness is the above mentioned (t) and whose flexibility is <=150mm by a hair-pin curve method is adopted. Then, the screen 2 is stuck to the level difference 3 of the core 1 through an adhesive layer 4 and the thickness of the layer 4 is set to be <=80μm.
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