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:
Sep. 09, 1997
Filed:
Aug. 24, 1995
Kenneth G Vickers, Whitesboro, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
An electron emitter plate (110) for an FED image display has an extraction (gate) electrode (122, 222) spaced by a dielectric insulating layer (25) from a cathode electrode including a conductive mesh (118, 218). Circular arrays (112) of microtips (14) are located concentrically within mesh spacings (116, 216) on a resistive layer (15), within apertures (26) formed on ring-shaped pads (127, 227) patterned in an extraction electrode (122). Mesh spacings (116) and pads (127) are circular. Mesh spacings (226) and pads (227) are hexagonal. For reduced capacitance, dielectric material (25) is etched from cores (144) of rings (127, 227) and from toroidal regions (148) below rings (127, 227). Mesh spacings (116, 216) are hexagonal close-packed and mesh material (118, 218) is removed from portions (142) of cathode electrode. Y-shaped bridging strips (129') have nodes (146) located over removed cathode electrode portions (142).