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:
Oct. 20, 2020
Filed:
Oct. 16, 2018
Champ Vision Display Inc., Chu-Nan, Miaoli County, TW;
Chin-Ku Liu, Chu-Nan, TW;
Jhong-Hao Wu, Chu-Nan, TW;
CHAMP VISION DISPLAY INC., Chu-Nan, TW;
Abstract
A multi-screen display device includes a plurality of display screens and a prism-structured optical element disposed between two adjacent display screens. The prism-structured optical element includes a substrate and a plurality of prisms arranged in a predetermined direction on the substrate. The substrate includes a first region and a second region adjacent to each other, and the lengths of the first and second regions in the predetermined direction are respectively La and Lb, and La≥Lb. The prism includes a plurality of first and second prisms in the first and second regions respectively. Each first and second prism has internal angles θa, θaand internal angles θband θbadjacent to the substrate. The inner angle θais between the inner angle θaand the second region, and θa<θa. The internal angle θbis between the internal angle θband the first region, and θb<θb