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:
Jun. 07, 2022
Filed:
Jun. 03, 2019
Sioptica Gmbh, Jena, DE;
André Heber, Weimar, DE;
Ambrose Peter Nari, Jena, DE;
Markus Klippstein, Jena, DE;
Uwe Schroeter, Dornburg-Camburg, DE;
siOPTICA GmbH, Jena, DE;
Abstract
A method for checking an operating mode of a display screen switchable between a free-viewing operating mode Band a restricted-viewing operating mode B, comprising: in operating mode B, determining a brightness value H of a surface and/or edge of a transparent light guide; then, depending on the brightness value H: i) unchanged use of operating mode Bif the brightness value lies within a range of specified Hg values; ii) switching off operating mode Bif the brightness value lies within a range of specified Hs values; or iii) changed use of operating mode Bif the brightness value lies within a range of specified Hm values, with the control unit exerting an influence on the image content perceptible on the display screen by reducing the latter's brightness and/or contrast, with the range Hm lying between the ranges Hs and Hg, and with the ranges bordering on each other.