Patent ID: 7470053
Filing Date: 2008-12-30
Classification: G02F

Abstract:
1. A back light module of edge lighting type comprising: a light guide plate (LGP) for scattering incident light to a light output surface; a diffuser positioned on the light output surface of the light guide plate for diffusing light from the light output surface; a reflecting layer positioned on a reflection surface of the light guide plate for reflecting light into the light guide plate; and a light emitting device for emitting light to at least one side of the light guide plate, the light emitting device comprising a straight cold cathode fluorescent lamp (CCFL) and a plurality of electro luminanecs (ELs) positioned at two ends of the straight cold fluorescent lamp only, wherein the outer portion of the light emitting device along a first axis having higher luminous intensity than the inner portion thereof, the electro luminances correspond to the outer portion, the outer portion includes a first outer portion and a second outer portion both having higher luminance than the inner portion, and the inner portion is between the first outer portion and the second outer portion.