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. 14, 2022
Filed:
Nov. 30, 2018
Hkc Corporation Limited, Guangdong, CN;
Chongqing Hkc Optoelectronics Technology Co., Ltd., Chongqing, CN;
Chih Tsung Kang, Chongqing, CN;
HKC Corporation Limited, Guangdong, CN;
CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing, CN;
Abstract
An optical composite film includes an optically-uniaxial optical film layer, a substrate layer, and a reflection grating film layer. The optically-uniaxial optical film layer includes a plate-shaped portion and a plurality of refraction portions disposed on a side of the plate-shaped portion, and the plurality of refraction portions is selected from a type of camber columns and quadrangular prisms; the substrate layer is stacked on a side of the plate-shaped portion close to the refraction portion, where the plurality of refraction portions is accommodated in the substrate layer, and an extraordinary light refractive index of the optically-uniaxial optical film layer is greater than a refractive index of the substrate layer; and the reflection grating film layer is disposed on a side of the substrate layer away from the optically-uniaxial optical film layer.