Patent ID: 8944667
Filing Date: 2015-02-03
Classification: G02B

Abstract:
1. A light emitting module, comprising: a holder, comprising a mounting surface positioned between a first guide surface and a second guide surface, wherein the mounting surface extends in a longitudinal direction of the holder, and wherein the first and second guide surfaces are inclined with respect to the mounting surface such that the first and second guide surfaces face each other and form a receiving space with the mounting surface; a board coupled to the mounting surface of the holder; and a plurality of light emitting diodes (LEDs) mounted on a surface of the board facing the receiving space, wherein the receiving space is configured to receive a light guide plate and a reflective plate therein so as to enclose the plurality of LEDs in the receiving space, wherein the first and second guide surfaces of the holder guide light emitted by the plurality of light emitting diodes in a predetermined direction, wherein the first and second guide surfaces extend beyond an emitting end of the plurality of light emitting diodes, and wherein the holder includes a plurality of holes in the mounting surface thereof, and a protrusion of a rear surface of the board is inserted into the plurality of holes of the holder, wherein the rear surface of the board is in direct contact with the mounting surface of the holder, and the protrusion of the rear surface of the board protrudes through the plurality of holes formed in the holder, wherein the board is a PCB having a circuit pattern, and the holder is formed of a metal plate, wherein an end portion of the reflective plate received in the receiving space is positioned between a corresponding end portion of the light guide plate and the second guide surface, the reflective plate including a first portion that vertically overlaps the light guide plate, a second portion that vertically overlaps the second guide surface of the holder, and a third portion between the first and second portions that vertically overlaps both the light guide plate and the second guide surface, wherein the mounting surface of the holder is physically separated from the reflective plate, wherein the second guide surface of the holder contacts an outer facing surface of the second portion of the reflective plate and is located at a lower position than the outer facing surface of the second portion of the reflective plate, wherein the first and second guide surfaces of the holder have different lengths.