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:
Jun. 10, 2003
Filed:
May. 24, 1999
Paul McKay Moore, San Bruno, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A pixel cell for a silicon LC light valve features a plurality of transparent electrically conducting pixel electrodes formed over a grounded reflective metal backplane. Dielectric material intervenes between the transparent electrodes and the grounded reflective backplane. This dielectric material, alone or in combination with the transparent electrode, creates a reflectance enhancing coating generating constructive interference of light reflected by the underlying backplane. The dielectric material also serves as the dielectric of an additional capacitive component having the active electrode and the grounded reflective metal backplane as plates. This architecture enhances the storage capacitance of the pixel cell, lowering sensitivity of the pixel to current leakage and reducing the pixel cell surface area. This pixel architecture also reduces the appearance of dark lines attributable to absorption of light in inter-pixel regions.