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:
Mar. 12, 2002
Filed:
Sep. 12, 1994
Paul C. Martin, Vancouver, WA (US);
Daryl L. Nishida, Aloha, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
A flat panel liquid crystal display ( ) has an addressing structure ( ) that uses an ionizable gaseous medium captured within channels ( ) in a first electrode structure ( ). An electro-optical material ( ) structure positioned between the first electrode structure and a second electrode structure ( ) has thickness that is determined by spacers ( , and ) that are formed on second electrode structure at points directly opposite support structures ( ) between the channels. Such spacers provide support for the second electrode structure and do not intrude into the active area ( ) of the display. The spacers are preferably formed of a polyimide resin layer using a photoetch process. Particulate spacers ( ) can also be entrained in a black surround material ( ) before it is applied to achieve spacers confined to inactive regions. Alternately, spacers ( ) can be formed of the black surround material using a two-step photoetching process.