公开(公告)号：US09448350B2

公开(公告)日：2016-09-20

申请号：US14052137

申请日：2013-10-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jun Seok An ,  Jae Hyun Park ,  Chang Hwa Baek ,  Sung Ho Song

IPC: F21V7/00 ,  F21V8/00

CPC classification number: G02B6/0031 ,  F21V7/0025 ,  G02B6/0088

Abstract: A backlight unit includes a light guide plate; a light emitting unit configured to irradiate light toward a side portion of the light guide plate, the side portion comprising an upper side part and a lower side part; and a light controller of which at least a portion is in at least one from among the upper and the lower side parts of the side portion of the light guide plate. The light controller includes a first region overlapping the light guide plate and a second region not overlapping the light guide plate, and a reflectivity of the first region is different from a reflectivity of the second region.

Abstract translation: 背光单元包括导光板; 发光单元，被配置为朝向所述导光板的侧部照射光，所述侧部包括上侧部和下侧部; 以及至少一部分在导光板的侧部的上侧部分和下侧部分中至少一部分的光控制器。 光控制器包括与导光板重叠的第一区域和不与导光板重叠的第二区域，并且第一区域的反射率不同于第二区域的反射率。