Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jonathan Harrold0
Ben Ihas0
Graham J. Woodgate0
Michael G. Robinson0
Robert A Ramsey0
Date of Patent
August 24, 2021
0Patent Application Number
202007310
Date Filed
July 31, 2020
0Patent Citations Received
Patent abstract
A switchable privacy display apparatus comprises a spatial light modulator, a light control film, and a polar control retarder that comprises plural retarders arranged between a display polariser of the spatial light modulator and an additional polariser. The display achieves high image visibility to an off-axis user in a public mode of operation and high image security to an off-axis snooper in privacy mode of operation.
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