公开(公告)号：US20140376261A1

公开(公告)日：2014-12-25

申请号：US14305573

申请日：2014-06-16

Applicant: Young Lighting Technology Inc.

Inventor： MING-DAH LIU ,  CHIN-MING LIN ,  SZE-KE WANG

IPC: F21V8/00

CPC classification number: G02B6/0031 ,  G02B6/003 ,  G02B6/0036 ,  G02B6/0043 ,  G02B6/0068

Abstract: A back light module includes a light guide plate, at least one first light source, at least one second light source and at least one first reflection element. The light guide plate includes a first light incident surface, a second light incident surface opposite to the first light incident surface, a light emitting surface, and a bottom surface opposite to the light emitting surface. The first light source is disposed beside the first light incident surface and suitable to provide a first non-collimated light beam to the first light incident surface. The second light source is disposed beside the second light incident surface and suitable to provide a first collimated light beam to the second light incident surface. The first reflection element is disposed beside the first light incident surface to reflect the first collimated light beam emitted so as to make the first collimated light beam diverge.

Abstract translation: 背光模块包括导光板，至少一个第一光源，至少一个第二光源和至少一个第一反射元件。 导光板包括第一光入射表面，与第一光入射表面相对的第二光入射表面，发光表面和与发光表面相对的底表面。 第一光源设置在第一光入射表面旁边，适合于将第一非准直光束提供给第一光入射表面。 第二光源设置在第二光入射表面旁边，适合于将第一准直光束提供给第二光入射表面。 第一反射元件设置在第一光入射表面旁边以反射发射的第一准直光束，以使第一准直光束发散。