BACK LIGHT UNIT FOR FLAT PANNEL DISPLAY WITH ADJUSTABLE VIEWING ANGLE,申请号KR20060123380-传众专利搜索

BACK LIGHT UNIT FOR FLAT PANNEL DISPLAY WITH ADJUSTABLE VIEWING ANGLE

申请公布号：KR20080051763(A)

申请号：KR20060123380

申请日期：2006.12.06

申请公布日期：2008.06.11

申请人：

SAMSUNG ELECTRONICS CO., LTD.

发明人：LEE, MOON GYU;MIN, JEE HONG;CHOE, KYU MIN

分类号：G02F1/13357

主分类号：G02F1/13357

摘要：A back light unit for a plat panel display with adjustable viewing angle is provided to improve security function by providing narrow viewing angle in a narrow viewing mode. A back light unit(100) for a plat panel display with adjustable viewing angle includes a light guide plate(30), a first light source(10), a light guide structure, and a second light source(21). The light guide plate guides light which enters from a lateral side to a front side. The first light source is arranged near the lateral side of the light guide plate. The first light source enters the light to the light guide plate. The light guide structure is arranged by the other lateral side of the light guide plate. The light guide structure has a bar structure and guides the light to the neighboring lateral side of the light guide plate uniformly. The second light source enters the light to the light guide structure.