Patents by Inventor Robert M. Duboc, Jr.
Robert M. Duboc, Jr. 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: 7866036Abstract: A micromirror device and a method of making the same are disclosed herein. The micromirror device comprises a mirror plate, hinge, and post each having an electrically conductive layer. One of the hinge, mirror plate, and post further comprises an electrically insulating layer. To enable the electrical connections between the conducting layers of the hinge, mirror plate, and post, the insulating layer is patterned.Type: GrantFiled: October 14, 2008Date of Patent: January 11, 2011Assignee: Texas Instruments IncorporatedInventors: Jonathan C. Doan, Satyadev R. Patel, Robert M. Duboc, Jr.
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Publication number: 20090039536Abstract: A micromirror device and a method of making the same are disclosed herein. The micromirror device comprises a mirror plate, hinge, and post each having an electrically conductive layer. One of the hinge, mirror plate, and post further comprises an electrically insulating layer. To enable the electrical connections between the conducting layers of the hinge, mirror plate, and post, the insulating layer is patterned.Type: ApplicationFiled: October 14, 2008Publication date: February 12, 2009Applicant: TEXAS INSTRUMENTS INCORPORATEDInventors: Jonathan C. Doan, Satyadev R. Patel, Robert M. Duboc, JR.
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Patent number: 7436573Abstract: A micromirror device and a method of making the same are disclosed herein. The micromirror device comprises a mirror plate, hinge, and post each having an electrically conductive layer. One of the hinge, mirror plate, and post further comprises an electrically insulating layer. To enable the electrical connections between the conducting layers of the hinge, mirror plate, and post, the insulating layer is patterned.Type: GrantFiled: July 13, 2005Date of Patent: October 14, 2008Assignee: Texas Instruments IncorporatedInventors: Jonathan C. Doan, Satyadev R. Patel, Robert M. Duboc, Jr.
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Patent number: 7071907Abstract: A display (50) with enhanced image contrast contains an image-producing component (60) and a set of shutter strips (80). The image-producing component, typically a flat-panel device, has multiple imaging lines that provide light to produce an image. Each shutter strip is situated in front of one or more associated imaging lines. By appropriately switching the shutter strips between light-absorptive and light-transmissive states, the image contrast is enhanced. The shutter strips are typically implemented with a liquid-crystal display structure. The switching of the shutter strips is typically performed with a control component (52/76) which utilizes light to control the shutter switching and which is synchronized to signals (90 or/and 100) that control the imaging lines.Type: GrantFiled: May 7, 1999Date of Patent: July 4, 2006Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.Inventors: Robert M. Duboc, Jr., Christopher J. Curtin, William A. Crossland, Anthony B. Davey, Theodore S. Fahlen
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Patent number: 6952302Abstract: A method and spatial light modulator are provided herein. The spatial light modulator has a higher resolution and an increased fill factor. The spatial light modulator also provides an increased contrast ratio. Furthermore, the spatial light modulator of the present invention can be operated in the absence of polarized light and that has improved electro-mechanical performance and robustness with respect to manufacturing. A method and its alternative are disclosed herein by the present invention for manufacturing the spatial light modulator.Type: GrantFiled: February 12, 2003Date of Patent: October 4, 2005Assignee: Reflectivity, IncInventors: Jonathan C. Doan, Satyadev R. Patel, Robert M. Duboc, Jr.
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Patent number: 6853135Abstract: An apparatus for removing contaminants from a display device is disclosed. In one embodiment, an auxiliary chamber is adapted to be coupled to a surface of a display device such that contaminants within the display device can travel from the display device into the auxiliary chamber. A getter is disposed in the auxiliary chamber. The getter is adapted to capture the contaminants once the contaminants travel from the display device into the auxiliary chamber. In other embodiments, the getter is disposed in the border region surrounding the active area of the display.Type: GrantFiled: May 20, 2002Date of Patent: February 8, 2005Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.Inventors: William C. Fritz, Igor L. Maslennikov, Robert M. Duboc, Jr., Theodore S. Fahlen, George B. Hopple, Christopher J. Curtin, Colin D. Stanners, Petre H. Vatahov, Christopher J. Spindt, Ronald L. Hansen
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Patent number: 6844959Abstract: A projection system, a spatial light modulator, and a method for forming micromirrors are disclosed. A substrate comprises circuitry and electrodes for electrostatically deflecting micromirror elements that are disposed within an array of such elements forming the spatial light modulator. In one embodiment, the substrate is a silicon substrate having circuitry and electrodes thereon for electrostatically actuating adjacent micromirror elements, and the substrate is fully or selectively covered with a light absorbing material.Type: GrantFiled: November 26, 2002Date of Patent: January 18, 2005Assignee: Reflectivity, IncInventors: Andrew G. Huibers, Satyadev R. Patel, Robert M. Duboc, Jr.
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Patent number: 6731061Abstract: A low-contaminant dual layer apparatus adapted for use in a flat panel display device is described. The apparatus includes a dual layer electroplated structure for containing the movement of electrons. The electroplated structure resides within an active region of the flat panel display device. The electroplated structure has a cavity adapted to having sub-pixel forming material deposited within and contains substantially no organic material.Type: GrantFiled: January 31, 2001Date of Patent: May 4, 2004Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.Inventors: Christopher J. Curtin, Ronald S. Besser, Robert M. Duboc, Jr.
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Patent number: 6596146Abstract: An electroplated structure for a field emission display device and method for forming an electroplated structure for a field emission display device. In one embodiment, the present invention forms a molded structure over selected portions of a flat panel display device. Next, the present embodiment deposits an electroplating seed layer over the molded structure. After the deposition of the electroplating seed layer, the present embodiment electroplates material onto portions of the electroplating seed layer such that an electroplated structure is formed at desired regions of the flat panel display device. In such an embodiment, the present invention provides an electroplated structure which contains substantially no polyimide material. As a result, the present embodiment eliminates the cost and production of outgassed contaminants associated with prior art structures.Type: GrantFiled: September 12, 2000Date of Patent: July 22, 2003Assignee: Candescent Technologies CorporationInventors: Ronald S. Besser, Robert M. Duboc, Jr.
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Patent number: 6590338Abstract: An apparatus for removing contaminants from a display device using an auxiliary chamber, and a method for attaching the auxiliary chamber to the display device. In one embodiment, an auxiliary chamber is adapted to be coupled to a surface of a display device. The auxiliary chamber is adapted to be coupled to the surface of the display device such that contaminants within the display device can travel from the display device into the auxiliary chamber. The auxiliary chamber further includes a getter which is disposed therein. The getter is adapted to capture the contaminants once the contaminants travel from the display device into the auxiliary chamber. In so doing, the present invention eliminates the need for getter material to be placed within the active area of the display device. As a result, the present invention increases the usable amount of space available within the display device. This extra space can then be utilized by features such as, for example, additional field emitters.Type: GrantFiled: February 29, 2000Date of Patent: July 8, 2003Assignee: Candescent Technologies CorporationInventors: William C. Fritz, Igor L. Maslennikov, Robert M. Duboc, Jr., Theodore S. Fahlen, George B. Hopple
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Patent number: 6571464Abstract: Methods and structures are provided which support spacer walls in a position which facilitates installation of the spacer walls between a faceplate structure and a backplate structure of a flat panel display. In one embodiment, spacer feet are formed at opposing ends of the spacer wall. These spacer feet can be formed of materials such as ceramic, glass and/or glass frit. The spacer feet support the corresponding spacer wall on the faceplate (or backplate) structure. Tacking electrodes can be provided on the faceplate (or backplate) structure to assert an electrostatic force on the spacer feet, thereby holding the spacer feet in place during installation of the spacer wall. The spacer wall can be mechanically and/or thermally expanded prior to attaching both ends of the spacer wall to the faceplate (or backplate) structure. The spacer wall is then allowed to contract, thereby introducing tension into the spacer wall which tends to straighten any inherent waviness in the spacer wall.Type: GrantFiled: April 26, 2001Date of Patent: June 3, 2003Assignees: Candescent Technologies Corporation, Candescent Intellectual Property Services, Inc.Inventors: Theodore S. Fahlen, Alfred S. Conte, Robert M. Duboc, Jr., George B. Hopple, John K. O'Reilly, Vasil M. Chakarov, Robert L. Marion, Steve T. Cho, Robert G. Neimeyer, Jennifer Y. Sun, David L. Morris, Christopher J. Spindt, Kollengode S. Narayanan
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Patent number: 6541912Abstract: An apparatus for removing contaminants from a display device is disclosed. In one embodiment, an auxiliary chamber is adapted to be coupled to a surface of a display device such that contaminants within the display device can travel from the display device into the auxiliary chamber. A getter is disposed in the auxiliary chamber. The getter is adapted to capture the contaminants once the contaminants travel from the display device into the auxiliary chamber. In other embodiments, the getter is disposed in the border region surrounding the active area of the display.Type: GrantFiled: July 26, 1999Date of Patent: April 1, 2003Assignee: Candescent Technologies CorporationInventors: William C. Fritz, Igor L. Maslennikov, Robert M. Duboc, Jr., Theodore S. Fahlen, George B. Hopple, Christopher J. Curtin, Colin D. Stanners, Petre H. Vatahov, Christopher J. Spindt, Ronald L. Hansen
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Patent number: 6278066Abstract: A spacer (100 or 600/1000A/1000B) situated between a faceplate structure (301) and a backplate structure (302) of a flat panel display is configured to be self standing. In one implementation, a pair of spacer feet (111 or 113 and 112 or 114) are located over the same face surface, or over opposite face surfaces, of a spacer wall (101) near opposite ends of the wall. An edge electrode (121 or 122) is located over an edge surface of the spacer adjacent to the faceplate structure or the backplate structure. In another implementation, a spacer clip (1000A or 1000B) clamps opposite face surfaces of a spacer wall (600) largely at one end of the wall.Type: GrantFiled: December 20, 1996Date of Patent: August 21, 2001Assignee: Candescent Technologies CorporationInventors: Theodore S. Fahlen, Alfred S. Conte, Robert M. Duboc, Jr., George B. Hopple, John K. O'Reilly, Vasil M. Chakarov, Robert L. Marion, Steve T. Cho, Robert G. Neimeyer, Jennifer Y. Sun, David L. Morris, Christopher J. Spindt, Kollengode S. Narayanan
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Patent number: 6235179Abstract: An electroplated structure for a field emission display device and method for forming an electroplated structure for a field emission display device. In one embodiment, the present invention forms a molded structure over selected portions of a flat panel display device. Next, the present embodiment deposits an electroplating seed layer over the molded structure. After the deposition of the electroplating seed layer, the present embodiment electroplates material onto portions of the electroplating seed layer such that an electroplated structure is formed at desired regions of the flat panel display device. In such an embodiment, the present invention provides an electroplated structure which contains substantially no polyimide material. As a result, the present embodiment eliminates the cost and production of outgassed contaminants associated with prior art structures.Type: GrantFiled: May 12, 1999Date of Patent: May 22, 2001Assignee: Candescent Technologies CorporationInventors: Ronald S. Besser, Robert M. Duboc, Jr.
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Patent number: 6204596Abstract: An electron-emitting device contains a lower conductive region (22), a porous insulating layer (24A, 24B, 24D, 24E, or 24F) overlying the lower conductive region, and a multiplicity of electron-emissive elements (30, 30A, or 30B) situated in pores (281) extending through the porous layer. The pores are situated at locations substantially random relative to one another. The lower conductive region typically contains a highly conductive portion (22A) and an overlying highly resistive portion (22B). Alternatively or additionally, a patterned gate layer (34B, 40B, or 46B) overlies the porous layer. Openings (36, 42, or 541) corresponding to the filaments extend through the gate layer at locations generally centered on the filaments such that the filaments are separated from the gate layer.Type: GrantFiled: June 30, 1998Date of Patent: March 20, 2001Assignee: Candescent Technologies CorporationInventors: John M. Macaulay, Peter C. Searson, Robert M. Duboc, Jr., Christopher J. Spindt
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Patent number: 6147450Abstract: An apparatus for removing contaminants from a display device using an auxiliary chamber, and a method for attaching the auxiliary chamber to the display device. In one embodiment, an auxiliary chamber is adapted to be coupled to a surface of a display device. The auxiliary chamber is adapted to be coupled to the surface of the display device such that contaminants within the display device can travel from the display device into the auxiliary chamber. The auxiliary chamber further includes a getter which is disposed therein. The getter is adapted to capture the contaminants once the contaminants travel from the display device into the auxiliary chamber. In so doing, the present invention eliminates the need for getter material to be placed within the active area of the display device. As a result, the present invention increases the usable amount of space available within the display device. This extra space can then be utilized by features such as, for example, additional field emitters.Type: GrantFiled: November 18, 1998Date of Patent: November 14, 2000Assignee: Candescent Technologies CorporationInventors: William C. Fritz, Igor L. Maslennikov, Robert M. Duboc, Jr., Theodore S. Fahlen, George B. Hopple
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Patent number: 6022652Abstract: A method for creating a faceplate of a display provides a faceplate substrate with a faceplate interior side and a faceplate exterior side. A plurality of barriers are formed on the faceplate interior side, with the barriers defining a plurality of subpixel volumes. Phosphor containing photopolymerizable material mixtures of red, green and blue, are deposited into subpixel volumes, and create a faceplate interior side/phosphor interface. At least a portion of the phosphor containing photopolymerizable material mixture is exposed with sufficient actinic light through the faceplate interior side/phosphor interface to polymerize a selected depth of the phosphor containing photopolymerizable material mixture in the subpixel volumes, and form a polymerized phosphor containing material in a plurality of subpixel volumes. Non-polymerized phosphor containing photopolymerizable material is removed from the polymerized phosphor containing material.Type: GrantFiled: February 23, 1996Date of Patent: February 8, 2000Assignee: Candescent Technologies CorporationInventors: Duane A. Haven, Paul M. Drumm, Robert M. Duboc, Jr.
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Patent number: 5913704Abstract: Gated electron emitters are fabricated by processes in which charged particles are passed through a track layer (24, 48, or 144) to form charged-particle tracks (26.sub.1, 50.sub.1, or 146.sub.1). The track layer is etched along the tracks to create open spaces (28.sub.1, 52.sub.1, or 148.sub.1). Electron-emissive elements (30 or 142D) can then be formed at locations respectively centered on the open spaces after which a patterned gate layer (34B, 40B, or 158C) is provided. Alternatively, the open spaces in the track layer can be employed to etch corresponding apertures (54.sub.1) through an underlying non-insulating layer (46) which typically serves as the gate layer. An etch is performed through the apertures to form dielectric open spaces (56.sub.1, 96.sub.1, or 114.sub.1) in an insulating layer (24) that lies below the non-insulating layer. Electron-emissive elements (30B, 30/88D.sub.1, 98/102.sub.1, or 118.sub.1) can subsequently be provided, typically in the dielectric open spaces.Type: GrantFiled: May 12, 1997Date of Patent: June 22, 1999Assignee: Candescent Technologies CorporationInventors: Christopher J. Spindt, John M. Macaulay, Robert M. Duboc, Jr., Peter C. Searson
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Patent number: 5900301Abstract: Fabrication of an electron-emitting device entails distributing electron-emissive carbon-containing particles (22) over a non-insulating region (12). The particles can be made electron emissive after the particle distributing step. Particle bonding material (24) is typically provided to bond the particles to the non-insulating region. The particle bonding material can include carbide formed by heating or/and can be created by modifying a layer (32) provided between the non-insulating region and the particles. In one embodiment, the particles emit electrons primarily from graphite or/and amorphous carbon regions. In another embodiment, the particles are made electron-emissive prior to the particle distributing step.Type: GrantFiled: January 3, 1997Date of Patent: May 4, 1999Assignees: Candescent Technologies Corporation, Massachusetts Institute of Technology, Advanced Technology Materials, Inc.Inventors: George E. Brandes, Jonathan C. Twichell, Michael W. Geis, John M. Macaulay, Robert M. Duboc, Jr., Christopher J. Curtin
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Patent number: 5851669Abstract: A field-emission structure suitable for large-area flat-panel televisions centers around an insulating porous layer that overlies a lower conductive region situated over insulating material of a supporting substrate. Electron-emissive filaments occupy pores extending through the porous layer. A conductive gate layer through which openings extend at locations centered on the filaments typically overlies the porous layer. Cavities are usually provided in the porous layer along its upper surface at locations likewise centered on the filaments.Type: GrantFiled: May 22, 1995Date of Patent: December 22, 1998Assignee: Candescent Technologies CorporationInventors: John M. Macaulay, Peter C. Searson, Robert M. Duboc, Jr., Christopher J. Spindt