BACKLIGHT DEVICE, IMAGE DISPLAY APPARATUS COMPRISING SAME, AND DRIVING METHOD

摘要

Disclosed is a backlight device configured to have two light guiding layers, a first light guiding layer (1) and a second light guiding layer (3) superimposed with each other, wherein the first light guiding layer (1) has a plurality of first light guiding sections (1a) arranged in the vertical direction thereof, and the second light guiding layer (3) has a plurality of second light guiding sections (3a) arranged in the horizontal direction thereof. The backlight device is configured such that first light sources (2) are provided on each of the first light guiding sections (1a), second light sources (4) are provided on each of the second light guiding sections (3a), and each of the light sources are controlled individually.