Light guide plate assembly, backlight source and display device

  • US 10,690,833 B2
  • Filed: 08/29/2018
  • Issued: 06/23/2020
  • Est. Priority Date: 01/03/2018
  • Status: Active Grant
First Claim
Patent Images

1. A light guide plate assembly comprising:

  • at least two light guide plates that are stacked on each other;

    wherein refractive indexes of the light guide plates are gradually reduced in a stacking direction of the light guide plates from a top surface of the light guide plate assembly to a bottom surface of the light guide plate assembly; and

    wherein one side of each of the light guide plates is provided with a refraction cavity; and

    wherein the refraction cavities of adjacent ones of the light guide plates are disposed in different sides of the light guide plate assembly in a staggered manner; and

    wherein a light scattering layer is disposed at an inner wall that encloses the refraction cavity of each of the light guide plates.

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