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

Claim 8:
9. The backlight module of claim 8, wherein the second reflection surface comprises the curved surface:
the second reflection surface comprises a third reflection position and a fourth reflection position, wherein the third reflection position is located on one side of the fourth reflection position adjacent to the substrate, and the third reflection position is located on one side of the fourth reflection position adjacent to the light-emitting element; and
an included angle between a tangent line at the third reflection position and a plane where the substrate is located is δ, and an included angle between a tangent line at the fourth reflection position and the plane where the substrate is located is E, wherein 0°<δ<ε<90°.