BOTH SIDED LUMINOUS BOARD

摘要

PURPOSE: A double-sided luminous board is provided to reduce components and a manufacturing cost, to simplify a structure, and to increase brightness of an illumination sheet in which an advertisement image is displayed. CONSTITUTION: A double-sided luminous board comprises: a plate-shaped light guide plate with a depression of a predetermined depth formed along the edge; an LED illumination part in which many LED elements are electrically connected on a flexible substrate; a plate-shaped laminate plate laminated on the light guide processed surface; and illumination sheets(120) which are adhered to the opposite surface of the light guide processed surface and the surface of the laminate plate facing the light guide processed surface.