Mckenna Long & Aldridge LLP
Backlight unit comprising condensing film having hetero-conic lenses
Provided is a backlight unit. The backlight unit includes a light source, an optical member configured to uniformly distribute light emitted from the light source, and at least two condensing films configured to condense light from the optical member. Hetero-conic lenses are two-dimensionally arranged on a surface of each of the condensing films, and each of the hetero-conic lenses is formed by combining a first conic lens expressed by Formula (1) below and a second conic lens expressed by Formula (2) below:
LG Chem, Ltd.
G G B G G G
G02F G02F B29D G02F G02F G02B
inventional additional inventional additional additional inventional
Sang-Choll Yune-Hyoun Kwang-Seung Sang-Eun
Han Kim Park An