Vehicular display device for directly and indirectly displaying information
US6100943A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 8, 1997 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Jul 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2360/334
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A display device for a transportation includes: a display unit displaying a display image on front and rear face sides, the display images displayed on the rear face side being in mirror image relationship with each other; and an optical member for inverting the display image displayed on the rear face side; wherein the display image displayed on the front face side is directly seen by a driver and the display image displayed on the rear face side is inverted by the optical member, so as to see in the same direction of the display image displayed on the front face side. The above display unit may be constituted by a light source having plural color spectra; an attenuation filter in which a transmittance for light emitted from the light source can be partly changed by an external signal; and a transparent light guide plate which guides light emitted from the light source to at least one of front and rear faces of the attenuation filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.