Patent ID: 11915627
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. The viewing angle expansion plate of claim 1, wherein each cell area from among the plurality of cell areas includes a plurality of groups of pinholes from among the plurality of pinholes,
wherein for each group of pinholes from among the plurality of groups of pinholes, each pinhole belonging to the respective group of pinholes is positioned at a respective distance from a center of the respective cell area,
wherein the respective distance from the center of the respective cell area is different for each group of pinholes, and
wherein a number of pinholes belonging to each group of pinholes follows a normal distribution with respect to the respective distance from the center of the respective cell area.