The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
May. 12, 2021
CM Visual Technology Corporation, Tainan, TW;
Tsang-Chi Wang, Tainan, TW;
Hsin-Wen Chang, Tainan, TW;
CM VISUAL TECHNOLOGY CORPORATION, Tainan, TW;
Abstract
The optical film includes a main body and an optical structure. The optical structure protrudes from a surface of the main body. The optical structure includes a first side surface and a second side surface. A first connecting line and a first angle less than 90 degrees are formed between the first side surface and the surface of the main body. A second connecting line and a second angle less than 90 degrees are formed between the second side surface and the surface of the main body. When viewed from a normal vector of the surface of the main body, a third angle is formed between an extension line of the first connecting line and an extension line of the second connecting line, and the third angle is greater than 0 degree and less than 90 degrees.