David D Shelton

US Patent:

7119762, Oct 10, 2006

Filed:

Aug 19, 2002

Appl. No.:

10/223003

Inventors:

Jeremy C. Price - Las Vegas NV, US
David P. Shelton - Henderson NV, US

International Classification:

G09G 5/00

US Classification:

345 7, 345 8, 345 9, 345156

Abstract:

Alphanumeric images are displayed in common view in one color on a background of a different color using a liquid crystal projection device. The two colors are sufficiently similar so they are not distinguished by the unaided eye of the viewer. A color selective material in the form of glasses is provided to a subclass of the viewers in the audience to enable these viewers to distinguish the alphanumeric subtitles from the background. This material extinguishes either the alphanumeric images or the background, thereby either providing darkened letters on a light background or light letters on a darkened background. The projection and viewing apparatus can be utilized as a motion picture closed captioning system for a mixed audience of hearing impaired and non hearing impaired individuals to permit the hearing impaired to view the subtitles while those individuals not wearing such wavelength selective glasses would not see the subtitles.