US Patent 7374304 Display with housing having cavity for secondary light source

Patent 7374304 was granted and assigned to Yazaki North America on May, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Yazaki North America

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7374304

Date of Patent

May 20, 2008

Patent Application Number

11359910

Date Filed

February 22, 2006

Patent Primary Examiner

‌

Ali Alavi

Patent abstract

A display with a housing and an indicium that may be selectively back-illuminated. The housing includes a cavity having a first portion and a second portion. A first light source that provides light of one color and a first intensity is disposed in the first portion. A second light source that provides light of another color and a second, higher intensity is disposed in the second portion. The second portion is disposed in-line and encompasses an area that includes the indicium. Operation of only the first light source back-illuminates the indicium with a first color. Operation of the second light source back-illuminates the indicium with a second color regardless of whether the first light source is illuminated or not. A member may be disposed between the first and second portions to aid in controlling the brightness and uniformity with which the indicium is illuminated by the first light source.