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:
Nov. 07, 2023
Filed:
Jul. 09, 2021
Applicant:
Reald Spark, Llc, Beverly Hills, CA (US);
Inventors:
Jonathan Harrold, Leamington Spa, GB;
Graham J. Woodgate, Henley on Thames, GB;
Robert Ramsey, Boulder, CO (US);
Assignee:
RealD Spark, LLC, Boulder, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/137 (2006.01); G02F 1/13363 (2006.01); G02F 1/13 (2006.01); G02F 1/1333 (2006.01); G02F 1/1335 (2006.01); F21V 8/00 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01); G02F 1/139 (2006.01); G06F 3/044 (2006.01);
U.S. Cl.
CPC ...
G02F 1/137 (2013.01); G02B 6/0038 (2013.01); G02B 6/0055 (2013.01); G02F 1/139 (2013.01); G02F 1/1323 (2013.01); G02F 1/1337 (2013.01); G02F 1/13338 (2013.01); G02F 1/13363 (2013.01); G02F 1/13439 (2013.01); G02F 1/133504 (2013.01); G02F 1/133528 (2013.01); G02F 1/133536 (2013.01); G02F 1/133634 (2013.01); G02F 1/13706 (2021.01); G02F 1/13712 (2021.01); G02F 1/13725 (2013.01); G02F 1/13775 (2021.01); G02F 1/133531 (2021.01); G02F 1/133738 (2021.01); G02F 1/133742 (2021.01); G02F 2413/14 (2013.01); G06F 3/0445 (2019.05);
Abstract
A display comprises a polarised output spatial light modulator, switchable liquid crystal retarder, absorbing polarizer and touch panel electrodes. The switchable liquid crystal layer is stabilised by a cured reactive mesogen material during application of an applied voltage. Light scatter in privacy mode is reduced and visual security level enhanced. Visibility of disclinations during application of applied pressure, for example from a finger on a touch screen is minimised.