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:
Jul. 16, 2013
Filed:
Jun. 05, 2000
James R Cole, Albany, OR (US);
James P Dickie, Corvallis, OR (US);
James R Cole, Albany, OR (US);
James P Dickie, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A liquid crystal display (LCD) panel has a variable white balance. The LCD panel includes an LCD screen, a first light source, a second light source and a light path directing the first and second light sources onto the LCD screen and a control circuit used to adjust the relative intensities of the first and second light sources. The first light source has a first color spectrum and the second light source a second color spectrum. The color spectrums of the first and second light sources are mixed in the light path to create a balanced white spectrum.