Patent ID: 9557600
Date: 2017-01-31
CPC Classifications: G02F,H01M,Y02E

Claim:
1. A backlight unit, comprising: a chassis; and a light source attached to the chassis, wherein the chassis includes an aluminum base or aluminum layer, and a porous alumina layer or pore-sealed porous alumina layer provided on the aluminum base or aluminum layer, and wherein the porous alumina layer or pore-sealed porous alumina layer comprises a first region, extending from the aluminum base or aluminum layer to a top most surface of the porous alumina layer or pore-sealed porous alumina layer having a micropore formed therein, of a first thickness and a second region, extending from the aluminum base or aluminum layer to a top most surface of the porous alumina layer or pore-sealed porous alumina layer having a micropore formed therein, of a second thickness which is different from the first thickness.