Information display area on electrochromic mirrors having a thir

Details Information display area on electrochromic mirrors having a thir Information display area on electrochromic mirrors having a thir

1997-04-02

1998-10-20

Epps, Georgia Y.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359604, 359843, G02F 1153

Patent

active

058255273

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.

REFERENCES:
patent: 4882565 (1989-11-01), Gallmeyer
patent: 5189537 (1993-02-01), O'Farrell
patent: 5253109 (1993-10-01), O'Farrell et al.
patent: 5285060 (1994-02-01), Larson et al.
patent: 5724187 (1998-03-01), Varaprasad et al.

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