Information display area on electrochromic mirrors having a third surface metal reflector
US5825527A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Apr 2, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2001/1223
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved electrochromic rearview mirror for motor vehicles, the mirror incorporating an information display area by removing a portion of a reflective and conductive layer on the inside (third) surface of the back glass element of a dimming portion of the rearview mirror and aligning a display device with this information display area. The portion removed is laser ablated to leave lines devoid of reflective material separated by lines of the reflective material. The remaining lines of reflective material are in electrical contact with the remaining reflective and conductive layer on the third surface. The reflective layer forms an integral electrode in contact with the electrochromic media, and may be a single layer of a highly reflective material or may comprise a series of coatings where the outer coating is a highly reflecting material. The other electrode on the inside (second) surface of the front glass is a transparent electrode which also contacts the electrochromic media inside the mirror element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.