Patent ID: 11960169
Assignee: SHANGHAI AVIC OPTOELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The backlight module of claim 10, wherein the plurality of light homogenizing units is disposed on the surface of the optical film, and the plurality of light homogenizing units comprises at least one of a first light homogenizing unit adjacent to the substrate or a second light homogenizing unit facing away from the substrate; and
the light homogenizing unit comprises at least one of: a convex surface facing away from the optical film, or a plurality of prism structures each with a regular quadrangle bottom and a triangle cross section; and a height and a width of each prism structure gradually decrease in a direction perpendicular to the substrate and in a direction from a center of a projection of the light-emitting element to an edge of the projection of the light-emitting element.