LIGHTING UNIT AND LIQUID CRYSTAL DISPLAY UNIT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To prevent a generation of friction sound by reducing the friction between a light guide plate and a housing caused by the heat generated at a light source. SOLUTION: A contact holding part 10s contacting with a light guide plate 3 is formed in a housing 10, and at least either one of the contact holding part 10s of the housing 10, or a part 3b of the light guide plate 3 corresponding to the contact holding part 10s of the housing 10 is formed so as to have a big surface roughness by grain finish SA or the like. Lubrication grease SG is applied to at least either one of the contact holding part 10s of the housing 10, or a part 3b of the light guide plate 3 corresponding to the contact holding part 10s of the housing 10.