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. 29, 2007
Filed:
Oct. 18, 2004
Klaus Wammes, Bechtheim, DE;
Klaus Wammes, Bechtheim, DE;
Siemens Aktiengesellscaft, Munich, DE;
Abstract
In a night vision goggle compatible color liquid crystal display, liquid crystal cells (and) are arranged in a matrix in which three adjacent liquid crystal cells are respectively provided with a red, green, and blue filter. The liquid crystal cells are driven by drive circuit (). The drive circuit () is controlled by a control device () with red, green, and blue pixel information. The brightness of a backlight source of the color display can be switched from a high value in a daytime operation to a low value for a nighttime operation. To optimize the night vision goggle compatible color liquid crystal display, the control device () switches off the driver of the liquid crystal cells with the red filters during the nighttime operation.