Illumination device and display device equipped with same

摘要

Provided is an illumination device capable of preventing a reflection sheet in the periphery of a light-emitting element from being raised while minimizing the instability in the fixture of a diffusion lens. The illumination device comprises a light-emitting element, a mounting substrate, a diffusion lens, and a reflection sheet having a through-hole. The diffusing lens includes a lens portion for diffusing light, and a fixed portion to be fixed to the mounting substrate. An engaging portion that sandwiches the reflection sheet between the engaging portion and the mounting substrate is formed in the fixed portion.

主权项

1. An illumination device comprising:
a light emitting element, a mounting board on which the light emitting element is mounted, a diffusing lens that is disposed to cover a light emitting side of the light emitting element and to diffuse light emitted from the light emitting element, and a reflecting sheet that is provided with a through-hole, through which an entirety of the diffusing lens is able to pass, and disposed on the mounting board, wherein the diffusing lens includes: a lens portion that diffuses the light emitted from the light emitting element; and a fixing portion that protrudes from the lens portion to the mounting board side and is fixed to the mounting board, wherein the fixing portion is formed to not extend beyond the contour of the lens portion when viewed from the top; and the fixing portion is provided with a concave-shaped engaging portion that cooperates with the mounting board to sandwich the reflecting sheet.