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

Claim 4:
5. The backlight module of claim 4, wherein the first reflection surface comprises the curved surface;
the first reflection surface comprises a first reflection position and a second reflection position, wherein the first reflection position is located on one side of the second reflection position adjacent to the substrate, and the first reflection position is located on one side of the second reflection position adjacent to the light-emitting element; and
an included angle between a tangent line at the first reflection position and a plane where the substrate is located is α, and an included angle between a tangent line at the second reflection position and the plane where the substrate is located is β, wherein 0°<α<β≤90°.