Patent ID: 9513425
Filing Date: 2016-12-06
CPC Classification: G02B,G02F

Claim Text:
1. A backlight module, comprising: an illuminant portion having a first surface and emitting light from the first surface, the illuminant portion comprising a light guiding plate and a plurality of light sources arranged along at least one edge of the light guiding plate which guides light emitted from the plurality of light sources to the first surface; an optical film assembly placed on the first surface of the illuminant portion and having a quantum dot enhancement film and at least one upper optical film layered above the quantum dot enhance film, the quantum dot enhancement film comprising a first edge and a second edge, wherein the second edge is adjacent to the plurality of light sources; and a frame surrounding the illuminant portion and having a first extension portion and a second extension portion extending along a direction parallel to the first surface, wherein the quantum dot enhancement film extends toward the frame more than the upper optical film such that the first and second extension portions cover a portion of the quantum dot enhancement film, wherein the first extension portion covers the first edge by a first distance and the second extension portion covers the second edge by a second distance, and wherein the second distance is greater than the first distance.