Patents by Inventor Yu Nan Sun
Yu Nan Sun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6489718Abstract: A spacer (140) suitable for use in a flat panel display is formed with ceramic, transition metal, and oxygen. At least part of the oxygen is bonded to the transition metal or/and constituents of the ceramic to form a uniform electrically resistive material having a resistivity of 105-1010 ohm-cm and a secondary electron emission coefficient of less than 2 at 2 kilovolts.Type: GrantFiled: July 18, 2000Date of Patent: December 3, 2002Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.Inventors: Anthony P. Schmid, Christopher J. Spindt, David L. Morris, Theodore S. Fahlen, Yu Nan Sun
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Patent number: 6157123Abstract: A flat panel display contains a faceplate structure (174 or 350), a backplate structure (175 or 351), and a spacer (140, 340, 0r 341). A light-emitting structure (171 or 306) is located along a faceplate (170 or 302) in the faceplate structure. An electron-emitting structure (172 or 305) is located along a backplate (173 or 303) in the backplate structure. The spacer is situated between the light-emitting and electron-emitting structures. Transition metal oxide or transition metal in oxide state is present in a ceramic core (401, 501, 0r 601) or/and a resistive skin (402, 403, 502, 503, 602, or 603) of the spacer.Type: GrantFiled: February 26, 1999Date of Patent: December 5, 2000Assignee: Candescent Technologies CorporationInventors: Anthony P. Schmid, Christopher J. Spindt, David L. Morris, Theodore S. Fahlen, Yu Nan Sun
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Patent number: 6064157Abstract: A flat panel display (500 or 700) contains a faceplate structure (510 or720), a backplate structure (511 or 730) coupled to the faceplate structure, and a plurality of spacers (501-503, 601, or 701-707) situated between the faceplate and backplate structures. The faceplate structure is formed with a faceplate )721) and a light emitting structure (722). The backplate structure is formed with a backplate (731) and an electron emitting structure (732). The core of each spacer is a spacer body (602 or 757). A face electrode (501a-503a, 203, 604, or 771-778) overlies the spacer body of each spacer. A common bus structure (504 or 723) electrically connects the face electrodes, thereby enabling charge built up on any particular spacer to be distributed among all the spacers.Type: GrantFiled: September 25, 1998Date of Patent: May 16, 2000Assignee: Candescent Technologies CorporationInventors: Christopher J. Spindt, David L. Morris, Anthony P. Schmid, Yu Nan Sun
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Patent number: 6002198Abstract: A flat panel display (300) contains a faceplate structure (320), a backplate structure (330) coupled to the faceplate structure, and a spacer (351 or 352) situated between the faceplate and backplate structures. The spacer is formed with material having a dielectric constant greater than 100 times the permittivity constant. The constituents of the spacer material typically include oxygen and aluminum, chromium, and titanium bonded to the oxygen. The titanium is present in the spacer at a level corresponding to approximately 4% titanium oxide by weight.Type: GrantFiled: September 25, 1998Date of Patent: December 14, 1999Assignee: Candescent Technologies CorporationInventors: Christopher J. Spindt, David L. Morris, Anthony P. Schmid, Yu Nan Sun
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Patent number: 5985067Abstract: The invention provides spacers for separating and supporting a faceplate structure and a backplate structure in a flat panel display, and methods for fabricating these spacers. Each spacer is typically made of ceramic, such as alumina, containing transition metal oxide, such as titania, chromia or iron oxide. Each spacer can be fabricated with an electrically insulating core and electrically resistive skins. The insulating core can be a wafer formed of ceramic such as alumina, and the resistive skins can be formed by laminating electrically resistive wafers, formed from alumina containing transition metal oxide, to the outside surfaces of the insulating core. Each spacer can also have a core of electrically insulating ceramic composition made of a ceramic containing a transition metal oxide in its higher oxide states, and electrically resistive outside surfaces made of a ceramic containing a transition metal oxide in lower oxide states.Type: GrantFiled: October 31, 1997Date of Patent: November 16, 1999Assignee: Candescent Technologies CorporationInventors: Anthony P. Schmid, Christopher J. Spindt, David L. Morris, Theodore S. Fahlen, Yu Nan Sun
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Patent number: 5916396Abstract: Spacers (140 or 404) suitable for a flat panel display are fabricated according to a process in which a laminated wafer (100 or 400) is formed by laminating a core wafer (401) of electrically insulating ceramic to an additional wafer (402 or 403) created at least from electrically insulating ceramic, transition metal, and oxygen, at least part of the oxygen being bonded to the transition metal and/or constituents of the ceramic. The laminated wafer is then cut to form the spacers. Face metallization strips (101-110 or 405 and 406) may be provided over outside face surfaces of the laminated wafer.Type: GrantFiled: July 11, 1997Date of Patent: June 29, 1999Assignee: Candescent Technologies CorporationInventors: Anthony P. Schmid, Christopher J. Spindt, David L. Morris, Theodore S. Fahlen, Yu Nan Sun
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Patent number: 5865930Abstract: The invention provides spacers for separating and supporting a faceplate structure and a backplate structure in a flat panel display, and methods for fabricating these spacers. Each spacer is typically made of ceramic, such as alumina, containing transition metal oxide, such as titania, chromia or iron oxide. Each spacer can be fabricated with an electrically insulating core and electrically resistive skins. The insulating core can be a wafer formed of ceramic such as alumina, and the resistive skins can be formed by laminating electrically resistive wafers, formed from alumina containing transition metal oxide, to the outside surfaces of the insulating core. Each spacer can also have a core of electrically insulating ceramic composition made of a ceramic containing a transition metal oxide in its higher oxide states, and electrically resistive outside surfaces made of a ceramic containing a transition metal oxide in lower oxide states.Type: GrantFiled: October 30, 1996Date of Patent: February 2, 1999Assignee: Candescent Technologies CorporationInventors: Anthony P. Schmid, Christopher J. Spindt, David L. Morris, Theodore S. Fahlen, Yu Nan Sun
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Patent number: 5675212Abstract: The invention provides spacers for separating and supporting a faceplate structure and a backplate structure in a flat panel display, and methods for fabricating these spacers. Each spacer is typically made of ceramic, such as alumina, containing transition metal oxide, such as titania, chromia or iron oxide. Each spacer can be fabricated with an electrically insulating core and electrically resistive skins. The insulating core can be a wafer formed of ceramic such as alumina, and the resistive skins can be formed by laminating electrically resistive wafers, formed from alumina containing transition metal oxide, to the outside surfaces of the insulating core. Each spacer can also have a core of electrically insulating ceramic composition made of a ceramic containing a transition metal oxide in its higher oxide states, and electrically resistive outside surfaces made of a ceramic containing a transition metal oxide in lower oxide states.Type: GrantFiled: March 31, 1995Date of Patent: October 7, 1997Assignee: Candescent Technologies CorporationInventors: Anthony P. Schmid, Christopher J. Spindt, David L. Morris, Theodore S. Fahlen, Yu Nan Sun