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:
Jul. 06, 2021
Filed:
Mar. 21, 2018
Facebook Technologies, Llc, Menlo Park, CA (US);
Youngshik Yoon, Cupertino, CA (US);
Cheonhong Kim, Mountain View, CA (US);
FACEBOOK TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
A structured film comprises an optically transmissive surface including a plurality of walls, each wall being adjustable between a plurality of configurations including a default configuration. When attached to a display, the walls extend away from the display at different heights and surround a plurality of light emitters of the display. In a default configuration, the walls generate selected diffraction orders for each light emitter such that gaps between adjacent light emitters are at least partially covered. The film can be adjusted by varying a geometry of the walls in response to an electrical input. The brightness of a region of interest in an image to be formed on the display can be adjusted relative to a surrounding region by varying wall geometry, using contrast control, or a combination thereof. The optically transmissive surface comprises a solid membrane filled with a non-solid material having a specific index of refraction.