Patent ID: 8985827
Filing Date: 2015-03-24
Classification: G02B

Abstract:
1. A backlight module, comprising: a light source emitting light rays; a reflector defining a plurality of through holes; an optical fiber group comprising a plurality of optical fibers, each of the optical fibers comprising: a light guide unit positioned adjacent to second ends of the optical fibers, and configured for receiving the light rays from the second ends and distributing the received light rays, wherein the reflector is configured for reflecting a portion of the light rays reflected by the light guide unit back to the light guide unit, and wherein the light guide unit comprises a first diffusion sheet, a first brightness enhancement sheet, a second brightness enhancement sheet, and a second diffusion sheet, the first diffusion sheet is positioned on a side of the lenses away from the reflector, the first brightness enhancement sheet is positioned on a side of the first diffusion sheet away from the lenses, the second brightness enhancement sheet is positioned on a side of the first brightness enhancement sheet away from the first diffusion sheet, and the second diffusion sheet is positioned on a side of the second brightness enhancement sheet away from the first brightness enhancement sheet.