Invention Grant
- Patent Title: Function display for selectively displaying symbols representing switching functions and/or switching states with a reduced veiling glare
-
Application No.: US17936605Application Date: 2022-09-29
-
Publication No.: US11921313B2Publication Date: 2024-03-05
- Inventor: Dennis Loeppen , Björn Morber , Kilian Memmel
- Applicant: Preh GmbH
- Applicant Address: DE Bad Neustadt a.d. Saale
- Assignee: PREH GMBH
- Current Assignee: PREH GMBH
- Current Assignee Address: DE Bad Neustadt A.D. Saale
- Agency: M&B IP Analysts, LLC
- Main IPC: F21V8/00
- IPC: F21V8/00 ; G02F1/13357

Abstract:
The present disclosure relates to a function display for selectively displaying symbols representing switching states for a motor vehicle including a light guide stack of at least two transparent or translucent, planar light guides arranged in an overlaid manner in a stacking direction, which are spaced apart by a transparent or translucent layer including a material that is optically thinner compared to the adjacent light guides so that the light guides have a main surface facing towards an observer and a main surface facing away from the observer that faces towards a light guide which is most closely adjacent in stacking direction; at least one light source per light guide arranged to couple light into the respective light guide via an end face; wherein one light-refractive and/or light-scattering microstructured portion per light guide, which is provided in or on the light guide, is provided for generating a symbol display.
Public/Granted literature
Information query