Patent ID: 11953940
Assignee: DARWIN PRECISION CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A display apparatus, comprising:
a light-transmitting structural plate having a first side and a second side opposite to each other;
eight first optical microscopic structures regularly arrayed around an intersection point, and formed on one of the first side and the second side, each of the eight first optical microscopic structures having a first inclined surface and two second inclined surfaces connected with the first inclined surface to form a pyramid with an isosceles triangular base located on the light-transmitting structural plate, each of the eight isosceles triangular bases having a long edge and two short edges, an edge of each of the eight first inclined surfaces away from a tip of a corresponding one of the eight pyramids defining one of the eight long edges, the long edge of each of the eight first inclined surfaces and the long edge of the first inclined surface of an adjacent one of the eight first optical microscopic structures connecting with each other at a first connecting line, two of the eight first inclined surfaces connected with each other at one of the first connecting lines forming a first angle therebetween, each of the first angles ranging between 30 degrees and 150 degrees, an edge of each of the sixteen second inclined surfaces away from the tip of a corresponding one of the eight pyramids defining one of the sixteen short edges, the short edge of each of the sixteen second inclined surfaces and the short edge of a corresponding one of the two second inclined surfaces of an adjacent one of the eight first optical microscopic structures connecting with each other at a second connecting line, each of the second connecting lines and an adjacent one of the second connecting lines connecting with each other as a first straight line at the intersection point, a corresponding one of the first connecting lines and an adjacent one of the first connecting lines connecting with each other as a second straight line at the intersection point;
an optical film located on the first side;
a base plate separating from the second side by a space; and
a plurality of light emitting elements located inside the space and disposed on the base plate, the light emitting elements being respectively configured to emit a light ray to the light-transmitting structural plate.