Patent ID: 8654278
Filing Date: 2014-02-18
Classification: G02F

Abstract:
1. A backlight module, comprising: an optical film and at least one light source disposed at one side of the optical film; wherein the backlight module further comprises at least one reflecting housing and a reflecting surface; the reflecting surface and the optical film are symmetrically disposed with respect to the light source, and are disposed in identical side of the light source; wherein the reflecting housing is disposed between the reflecting surface and the optical film; the reflecting housing comprises a first reflecting layer to reflect the lights emitted from the light source to the reflecting surface, and a second reflecting layer to reflect the lights emitted from the light source to the optical film; and the first reflecting layer has a first arc shape and corresponds to a predetermined trajectory of the reflecting surface, so the lights reflected by the first reflecting layer are reflected into the reflecting surface; wherein the reflecting surface has the predetermined trajectory; the predetermined trajectory is a Non Uniform Rational B-Spline, and corresponds to the first reflecting layer and the first light source; in the predetermined trajectory, the lights entering into the reflecting surface are reflected by the reflecting surface and enter into the optical film.