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. 26, 2026
Filed:
Oct. 25, 2024
Reald Spark, Llc, Boulder, CO (US);
Jonathan Harrold, Leamington Spa, GB;
Robert A. Ramsey, Boulder, CO (US);
Michael G. Robinson, Boulder, CO (US);
Graham J. Woodgate, Henley-on-Thames, GB;
RealD Spark, LLC, Boulder, CO (US);
Abstract
A display apparatus comprises a display device capable of operating in a first mode and a second mode where an image remains visible in both the first mode and the second mode in an on-axis direction and a visibility of the image is reduced in an off-axis direction in the second mode. A control system is capable of selectively operating the display device in the first mode or the second mode and can selectively control luminance of the displayed image in the first mode based on a first function and to selectively control luminance of the displayed image in the second mode based on a second function. High image visibility can be provided for a public mode of operation while in privacy mode of operation a high visual security level may be obtained by means of controlling an image characteristic such as image luminance, contrast and white point.