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. 23, 1999
Filed:
Jan. 31, 1997
Johannes HM. Damen, Eindhoven, NL;
Hermanus N Tuin, Eindhoven, NL;
Johannes TH. Leijten, Eindhoven, NL;
Cornelus HM. Van Bommel, Eindhoven, NL;
Wilhelmus NM. Selten, Eindhoven, NL;
Martinus GF.C. Sanders, Eindhoven, NL;
Franciscus MH. Van Laarhoven, Eindhoven, NL;
Marcel Niestadt, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The thin-type display device (1) has a transparent front wall (3), which is provided with a display screen, and a rear wall (24) which extends parallel to said front wall (3), and said display device comprises at least an electron source and a duct structure. The display device (1) is characterized in that the rear wall (24) and walls (22, 22', 22') of the ducts of the duct structure are manufactured in a single piece. Preferably, the walls (22, 22', 22') of the ducts widen in the direction of the rear wall (24), with the angle, which opposing faces of the walls (22, 22', 22') of the ducts make with each other, ranging from 1.degree. to 30.degree.. Preferably, the rear wall (24) further comprises at least an upright side wall (32), which is integral with the rear wall (24). Preferably, the walls (22, 22', 22') are made from a glass having a temperature interval between the operating temperature and the softening temperature of less than 420.degree., perferably less than 360.degree., and the duct structure and the side walls (32) can be pressed in one process step.