Function display for selectively displaying several symbols that respectively represent a switching function and/or several switching states, with an alignment function of the light sources, and associated assembly method
US12066652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2022 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Jul 16, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a function display for selectively displaying several symbols representing one switching function, respectively, and/or at least two switching states, including a light guide stack which forms a display surface facing towards an observer; wherein the light guide stack is formed from at least planar light guides arranged in an overlaid manner in a stacking direction, which are arranged so as to be spaced apart by a transparent or translucent layer; at least one light source per light guide wherein, further, at least one microstructured symbol area in or on the light guide which is configured, if the light source is activated, to be visible to the observer; a circuit board on which the several light sources are arranged and fixed; a panel fixed to the light guide stack to which the circuit board is fixed while resting against a mounting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.