Patent ID: 9645307
Date: 2017-05-09
CPC Classifications: G02B,G02F

Claim:
1. A backlight module, comprising: a light guide plate, having an incident side; a mounting bracket including a vertical portion and a horizontal portion, wherein the vertical portion is opposite to the incident side, a gap exists between the vertical portion and the incident side, the vertical portion has a plurality of mounting holes, and the mounting holes pass through the vertical portion and the horizontal portion, thereby forming a plurality of grooves on the horizontal portion; a plurality of optical fibers, wherein the optical fibers are respectively disposed in the grooves and the mounting holes, emitting end faces of the optical fibers are attached to the incident side, and the optical fibers are used for guiding the ambient light into the light guide plate; and a plurality of slide assemblies, wherein the slide assemblies are respectively put around the optical fibers and fixed on the optical fibers, and the sliding assemblies are respectively disposed in the grooves and able to move with expansion or contraction of the light guide plate, wherein the slide assembly includes a fiber jacket and an elastic element, the fiber jacket is put around the optical fiber and fixed on the optical fiber, the outer surface of the fiber jacket has a circumferential projection, the central portion of the groove has a receiving concave, the bottom of the receiving concave and the bottom of the groove form a first step and a second step, the fiber jacket is placed in the groove, the circumferential projection is against the first step, the elastic member is movably put around the fiber jacket and placed in the receiving concave, one end of the elastic member abuts the circumferential projection, and the other end of the elastic member abuts the second step.