Patent ID: 9435928
Filing Date: 2016-09-06
CPC Classification: G02B

Claim Text:
1. A light guiding system for use in an edge-lighting backlight module comprising: an ambient light gathering system, facing to ambient light, for absorbing the ambient light to generate absorbed light; a plurality of light guiding devices, each light guiding device having a light input end and a light output end near to the ambient light gathering system, and the absorbed light from the light input end being guided to the light output end; and a wedge light guiding bar having a light-out surface, a light-in surface, an inclined surface, and a first surface, wherein the light-out surface is connected to the light-in surface, the inclined surface is a single surface remaining a specific angle, is adjacent to and directly connected between the first surface and light-in surface, and is opposite to the light-out surface, and the light-in surface is wider than the first surface and is near the light out end of the plurality of light guiding devices, wherein a plurality of cylindrical nodes are set up on the inclined surface and protrude from the inclined surface; wherein the plurality of cylindrical nodes are arranged to scatter light from the light-in surface so as to make the light from the light-out surface more even.