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:
Sep. 25, 2018
Filed:
Jul. 12, 2016
Wuhan China Star Optoelectronics Technology Co., Ltd., Wuhan, Hubei, CN;
Chang Xie, Guangdong, CN;
Wuhan China Star Optoelectronics Technology Co., Ltd, Wuhan, Hubei, CN;
Abstract
The disclosure provides a liquid crystal lens, including an upper substrate, a lower substrate, a liquid crystal layer and a spacer, the liquid crystal layer and the spacer are disposed between the upper substrate and the lower substrate. A surface of the spacer is coated with a first antireflection film and a second antireflection film in turn. An index of refraction of the liquid crystal layer is n. An index of refraction of the first antireflection film is n, a thickness of which is d2. An index of refraction of the second antireflection film is n, a thickness of the second antireflection film is d1. An index of refraction of the spacer is n, and nd1=nd2=λ/6, where λ is a wavelength of light. The liquid crystal lens and the 3D display can reduce light intensity of the reflective rays on the spacer and increase contrast of the image.