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:
Nov. 28, 2017
Filed:
Oct. 11, 2016
Boe Technology Group Co., Ltd., Beijing, CN;
Abstract
The present invention discloses a light valve device, an infrared display apparatus, dedicated spectacles and a system, to realize with naked eyes, only a black picture plane without any information can be seen on a display screen, but with spectacles, effective image information can be seen on the display screen; as a result, the image display is more concealed. The light valve device comprises a first liquid crystal cell and a second liquid crystal cell that are oppositely disposed to each other; the first liquid crystal cell and the second liquid crystal cell are both formed by two substrates that are oppositely arranged, and alignment films with parallel or antiparallel alignment directions are formed on the inside the two substrates respectively; cholesteric liquid crystals with opposite arrangement and rotation directions are filled in the first liquid crystal cell and the second liquid crystal cell respectively.