The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1999
Filed:
Sep. 11, 1997
Robert Patrick Helstern, Costa Mesa, CA (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A display system includes a plurality of color filters disposed between a plurality of light sources and a display panel. A first light source is energizeable to transmit light through a first color filter to illuminate the display panel with a first color (red). A second light source is energizeable to transmit light through a second color filter to illuminate the display panel with a second color (green). The first and second light sources are simultaneously energizeable to transmit light through both of the color filters to illuminate the display panel with a third color (yellow). The display panel includes inner and outer layers containing light absorbing pigment and light scattering particulate. The outer layer of the panel contains a greater quantity of pigment than the inner layer. The inner layer of the panel contains a greater quantity of light scattering particulate than the outer layer. The inner and outer layers of the panel have the same optical density.