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:
Jul. 12, 2022
Filed:
Mar. 25, 2022
Tactotek Oy, Oulunsalo, FI;
Vinski Bräysy, Oulunsalo, FI;
Jarmo Sääski, Oulunsalo, FI;
Mikko Heikkinen, Oulunsalo, FI;
Ilpo Hänninen, Oulunsalo, FI;
Pasi Korhonen, Oulunsalo, FI;
Giovanni Ferri, Oulunsalo, FI;
TACTOTEK OY, Oulunsalo, FI;
Abstract
An integrated functional multilayer structure includes substrate film, circuitry provided upon the substrate film including a first light source and a monolithic lightguide layer, the lightguide layer includes a first surface and an opposite second surface, the second surface facing the first light source and a portion of the first surface containing, a pre-defined outcoupling area for the light emitted by the first light source and transmitted within the lightguide layer, the lightguide layer further containing a light leakage prohibition region and the attenuation of emitted light effectuated on a direct optical path between the first light source and the outcoupling area is less than the attenuation effectuating on a optical path between the first light source and the light leakage prohibition region. A related method of manufacture is also presented.