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:
May. 18, 2021
Filed:
Sep. 15, 2017
Boe Technology Group Co., Ltd., Beijing, CN;
Hao Chen, Beijing, CN;
Bingchuan Shi, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A backlight module, a spatial light modulator, a holographic display device and a holographic display method therefor are disclosed. The backlight module includes: a light source; an optical conversion element arranged to face the light source and configured to convert a light beam emitted by the light source into coherent collimated light; and a light switch layer disposed at a side of the optical conversion element away from the light source. The optical conversion element includes a plurality of sub-optical conversion regions. The light switch layer includes a plurality of sub-light switches, the plurality of sub-light switches and the plurality of sub-optical conversion regions being disposed in one-to-one correspondence.