Patent ID: 7708449

Claim:
An illumination device comprising: a flexible wiring board; a light source mounted on the flexible wiring board; a structure having a light guide panel and a frame accommodating the light guide panel; a plurality of adhesive members that secure the wiring board to the structure at a plurality of adhesion areas located on the light guide panel or the frame; wherein the flexible wiring board includes a first portion that is bent in a first direction to overlap the light guide panel and the frame, and a second portion that extends away from the light guide panel and the frame and is bent in a second direction, the second direction being different from the first direction; the plurality of adhesive members includes at least two adhesive members that are formed where the first portion of the flexible wiring board overlaps the light guide panel or the frame, one of the two adhesive members being directly adjacent to the second portion; and a bond strength of the one adhesive member directly adjacent the second portion being greater than a bond strength of the other adhesive member that is not directly adjacent the second portion, in order to prevent excessive stress on the flexible wiring board during rework.