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:
May. 17, 2005
Filed:
Jan. 22, 2002
Gert W. Bruning, Sleepy Hollow, NY (US);
Chin Chang, Yorktown Heights, NY (US);
Gert W. Bruning, Sleepy Hollow, NY (US);
Chin Chang, Yorktown Heights, NY (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The liquid crystal display panel of the present invention provides rapid highlighting of the display. To provide highlighting, current to the backlighting lamp is increased from a normal current to a highlighting current. During the transition from the normal current to the highlighting current, the current to backlighting lamp is increased to an intermediate current above the highlighting current, and then decreased to the highlighting current. The increase to an intermediate current provides greater energy to the backlighting lamp than a direct increase from the low current to the highlighting current. The increased energy heats the backlighting lamp quickly to provide the increased light for highlighting. In addition, reducing the current to the backlighting lamp below the normal current when leaving the highlighting mode decreases the time to leave the highlighting mode.