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:
Oct. 31, 2006
Filed:
Oct. 01, 2002
Bernd Ludewig, Hirschberg, DE;
Ralf Mayer, Bolanden, DE;
Heinrich Noll, Gross-Umstadt, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
The invention relates to a display device, especially in a motor vehicle, comprising a display () which can be illuminated by a light source (), and a light guide () which is arranged between the light source () and the display (). Said light source () comprises a plurality of individual light sources (), the entire light-radiating surface of said light sources being larger than the surface of the display (). In order to increase the light efficiency, the light guide () comprises, on the light source side, individual light guiding sections () which are associated with the individual light sources (), said sections forming a common light guiding section () on the display side.