| 摘要 |
In a backlight unit including an illumination member such as a light guide panel equipped with a line-shaped light source 2 and a light diffusing optical sheet 42 or a light collecting optical sheet 41 arranged on the light guide panel, a reinforcing plate 71 having light transmittance higher than that of the optical sheet and resistive against thermal deformation is stuck on at least one of these optical sheets to restrict thermal deformation of the optical sheet.
|
