Patent ID: 8902377
Filing Date: 2014-12-02
Classification: G02B,G02F

Abstract:
1. A backlight module, comprising: a waveguide, an optical film, an elastic frame, and dowel pins; wherein at least corners of the optical film is securely attached to the elastic frame; wherein the dowel pints are attached to the elastic frame, and the optical film is disposed on top of the waveguide, wherein corners of the optical film is provided with openings with which the optical films are readily positioned with respect to the waveguide by extending the dowel pins through the openings; wherein the strength of the dowel pins is stronger than the strength of the elastic frame; wherein the elastic frame is defined with alignment holes in which the dowel pins are interferentially rooted; wherein the elastic frame is defined with plurality of slots in a surface facing the waveguide; and wherein there are four elastic frames arranged with respect to the corners of the waveguide, and each of the elastic frames has an L-shaped configuration to match the corner of the waveguide.