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. 29, 2019
Filed:
Nov. 10, 2016
Koninklijke Philips N.v., Eindhoven, NL;
Achim Gerhard Rolf Koerber, Eindhoven, NL;
Bart Kroon, Eindhoven, NL;
Mark Thomas Johnson, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A display device comprises a display panel (), a light blocking arrangement for selectively blocking light which is directed to a lateral output direction from the display panel and an array of lenses (). The display has a privacy mode in which the light blocking arrangement blocks laterally directed light output from the display device and a public mode in which the light blocking arrangement allows light to pass which is directed to a lateral output direction. The light blocking arrangement comprises a stack of layers (), each layer comprising a pattern of light blocking arrangement portions of two different types () such that in the stack of layers, the portions align to form light blocking members, each light blocking member being aligned with an respective lens. The repeating pattern of the light blocking members has a pitch which is double the lens pitch. This enables the light blocking arrangement to be manufactured more easily.