Patent ID: 9057806
Filing Date: 2015-06-16
Classification: G02B

Abstract:
1. A planar light source comprising: a first reflector; a plurality of light bars configured on the first reflector; a light guide plate configured on the first reflector to cover the light bars, the light guide plate having a first surface, a second surface opposite to the first surface, and a plurality of convex couplers separated from one another and located on the second surface, each of the convex couplers having a bar structure, wherein each of the light bars is located between two adjacent convex couplers of the convex couplers, and light emitted from each of the light bars enters the light guide plate from at least one sidewall of at least one of the convex couplers and leaves the light guide plate via the first surface; a plurality of second reflectors, wherein the second reflectors are configured on part of the second surface in which none of the convex couplers is located; and a plurality of light leakage restraining layers located on a bottom surface of the convex coupler, wherein each of the light leakage restraining layers being respectively configured between one of the convex couplers and the first reflector such that each of the light restraining layers is in contact with the first reflector.