| 摘要 |
An illumination device has a light guide plate, a sheet section, and a frame. Each optical sheet has projections. The sheet section has a plurality of secured parts each formed by one of the projections or by a plurality of the projections overlapping each other, and the sheet section is secured to the frame at the respective secured parts by a fixing member provided on the side of the sheet section opposite to the light guide plate. The number of projections included in each of the secured parts is fewer than the number of the plurality of optical sheets forming the sheet section. |
