Patent · US Active

Heads-up display, motor vehicle and method of operating a heads-up display

US7762703B2 · kind B2 · utility

2Cited by

6References

22Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Aiko Böhme · Ingelheim am Rhein, DE
Peter Brandt · Berghausen, DE
Heiko Charle · Gerolzhofen, DE

Key dates

Filing date	Mar 2, 2007
Grant date	Jul 27, 2010
Priority date	—
Expiry date	Oct 30, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/133621
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A heads-up display comprises a monochrome display device for generating an image and an optical device for generating a virtual image from the image of the display device. The monochrome display device comprises a display and a backlight for illuminating the display from its backside. The backlight comprises a first light source emitting light of a first color, a second light source emitting light of a second color, a first light guide coupled to the first light source, and a second light guide coupled to the second light source. The first and second light guides are disposed in such close juxtaposition behind the display so that they illuminate together the entire backside of the display and illuminate a first region of the display associated with the first light guide with the first color and a second region of the display associated with the second light guide with the second color.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.