TRANSMISSION SCREEN FOR INTERACTIVE BOARD, INTERACTIVE BOARD, AND INTERACTIVE BOARD SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a transmission screen for interactive boards which has high flatness and is capable of reducing ghost to be able to display a clear image, an interactive board including the same, and an interactive board system.;SOLUTION: A screen 10 for interactive boards is a transmission screen and includes: a substrate layer 13 which is a substrate of the screen 10 and has such rigidity as to maintain flatness of the screen 10; a prism layer 11 which is provided nearer to the incidence side than the substrate layer 13 and has a prism portion where a plurality of unit prisms 111 including incidence surfaces A1 for light incidence and total reflection surfaces A2 for totally reflecting at least a part of light made incident from the incidence surfaces are arrayed; and a light diffusion layer 12 which is provided nearer to the incidence side than a middle point m of total thickness of the screen 10 and has a function of diffusing light.;COPYRIGHT: (C)2012,JPO&INPIT