Candescent Technologies Corporation

Other

Canon Kabushiki Kaisha

Sony Corporation

Intel Corporation

Candescent Intellectual Property Services, Inc.

Paul N Ludwig

Theodore S Fahlen

John D Porter

Christopher J Curtin

Robert G Neimeyer

Chungdee Pong

Duane A Haven

Christopher J Spindt

N Johan Knall

John M Macaulay

Anthony P Schmid

Robert J Pressley

Jennifer Y Sun

James Montague Cleeves

Alfred S Conte

Steven T Cho

Shinji Kanagawa

John E Sell

Jueng-Gil Lee

Daniel M Dobkin

Floyd R Pothoven

Anthony John Cooper

Victor M Alvarez

Melissa Skocypec

Ronald L Strijek

Dmitriy Krupetsky

H Joe Poole

A flat-panel display is hermetically sealed by a process in which a first plate structure () is positioned generally opposite a second plate structure () such that sealing material () provided over the second plate structure lies between the plate structures. In a gravitational sealing technique, the first plate structure is positioned vertically below the second plate structure. The sealing material is heated so that it moves vertically downward under gravitational influence to meet the first plate structure and seal the plate structures together. In a global-heating gap-jumping technique, the plate structures and sealing material are globally heated to cause the sealing material to jump a gap between the sealing material and the first plate structure. When the first plate structure is positioned vertically above the second plate structure, the sealing material moves vertically upward to meet the first plate structure and close the gap.

Sealing of flat-panel device

An external cavity laser in a hermetically sealed container and methods for hermetically sealing the external cavity laser. The external cavity laser may be tunable by various mechanisms to allow transmission at multiple selectable wavelength channels.

Hermetically sealed external cavity laser system and method

A flat-panel display is hermetically sealed by a process in which a first plate structure ( ) is positioned generally opposite a second plate structure ( ) such that sealing material ( ) provided over the second plate structure lies between the plate structures. In a gravitational sealing technique, the first plate structure is positioned vertically below the second plate structure. The sealing material is heated so that it moves vertically downward under gravitational influence to meet the first plate structure and seal the plate structures together. In a global-heating gap-jumping technique, the plate structures and sealing material are globally heated to cause the sealing material to jump a gap between the sealing material and the first plate structure. When the first plate structure is positioned vertically above the second plate structure, the sealing material moves vertically upward to meet the first plate structure and close the gap.

A method for attaching a faceplate and a backplate of a field emission display device. Specifically, one embodiment of the present invention discloses a method for protecting a silicon nitride passivation layer from reacting with a glass frit sealing material that contains lead oxide during an oven sealing or laser sealing process. The passivation layer protects row and column electrodes in the display device. A barrier material fully encapsulates the silicon nitride passivation layer. In one embodiment, silicon dioxide is the barrier material. In another embodiment, spin-on-glass is the barrier material. In still another embodiment, cermet is the barrier material.

Frit protection in sealing process for flat panel displays

A tuned sealing material and a method for attaching a first surface to a second surface using the tuned sealing material are disclosed. In one embodiment, the present invention applies a tuned sealing material between a first surface and a second surface. In this embodiment, the tuned sealing material is comprised of a combination of a filler material and a glass material. Furthermore, in this embodiment, the filler material is tuned to absorb electromagnetic radiation of a selected frequency. Next, in the present embodiment, the tuned sealing material is subjected to the electromagnetic radiation of the selected frequency. As a result of tuning the filler material, the tuned sealing material absorbs the electromagnetic radiation of the selected frequency. After absorbing the electromagnetic radiation of the desired frequency, the tuned sealing material is used to attach the first surface and the second surface.

Tuned sealing material for sealing of a flat panel display

A pair of plate structures ( and ), such as a baseplate structure and a faceplate structure of a flat-panel display, are sealed to each other by first attaching the plate structures to each other, typically at multiple attachment locations, in a non-vacuum environment. The plate structures are then hermetically sealed to each other, typically through an outer wall ( ) or/and typically by gap jumping, in a vacuum environment.

Sealing of plate structures

A flat panel display and a method for forming a flat panel display. In one embodiment, the flat panel display includes a wall which is held in place by a structure formed either on the faceplate or on the backplate. In one embodiment the supporting structure is formed by two adjacent walls that form a slot which mechanically restrains the wall. In another embodiment a slot is formed within the faceplate and the walls of the slot mechanically restrain the wall. In one embodiment wall segments are inserted into supporting structures that mechanically restrain each wall segment. In another embodiment a UV curable or a heat curable adhesive is used to maintain walls in their proper alignment and position. In yet another embodiment a conductive material is melted so as to bond conductive lines located on the wall and conductive lines located on the faceplate. This bond electrically connects the conductive lines located on the wall and the conductive lines located on the faceplate and maintains the wall in the proper alignment. The present invention eliminates the need for feet which attach to individual walls for maintaining the walls in the proper alignment.

Wall assembly and method for attaching walls for flat panel display

An electron-emitting device is fabricated by a process in which particles (,) are distributed over an initial structure. The particles are utilized in defining primary openings (,, or,) that extend through a primary layer (,A,,A, or,) provided over a gate layer (,A,,A, or,B) formed over an insulating layer (,) and in defining corresponding gate openings (,, or,) that extend through the gate layer. The insulating layer is etched through the primary and gate openings to form corresponding dielectric openings (,or,) through the insulating layer down to a lower non-insulating region (,). Electron-emissive elements (,A or,A) are formed over the lower non-insulating region so that each electron-emissive element is at least partially situated in one dielectric opening. Formation of the electron-emissive elements, typically in the shape of cones, normally entails depositing emitter material over the primary layer, through the primary and gate openings, and into the dielectric openings and then removing the primary layer so as to remove any emitter material accumulated over the primary layer.

Fabrication of gated electron-emitting devices utilizing distributed particles to define gate openings, typically in combination with lift-off of excess emitter material

Wall assembly and method for attaching walls for flat panel displays

Portions (40 and 44) of a structure, such as a flat-panel device, are sealed together by a gap-jumping technique in which a sealing area (40S) of one portion is positioned near a matching sealing area (44S) of another portion such that a gap (48) at least partially separates the two sealing areas. The gap typically has an average height of 25 .mu.m or more. With the two portions of the structure so positioned, energy is initially transferred locally to material of a specified one of the portions along part of the gap while the two portions are in a non-vacuum environment to cause material of the two portions to bridge that part of the gap and partially seal the two portions together along the sealing areas. Energy is subsequently transferred locally to material of the specified portion of the structure along the remainder (48A) of the gap while the two portions are in a vacuum environment to cause material of the two portions to bridge the remainder of the gap and complete sealing of the two portions together along the gap. A laser (56) is typically employed in performing at least one of the gap-jumping steps.

Gap jumping to seal structure, typically using combination of vacuum and

A flat panel display and a method for forming a flat panel display. In one embodiment, the flat panel display includes a sealed interior region. The seal material is placed between a faceplate and a backplate. The seal material is heated using microwave energy. The microwave energy melts the seal material, forming a sealed interior region. The flat panel display is evacuated using an evacuation device that is then sealed off. This results in a flat panel display that is hermetically sealed.

Microwave sealing of flat panel displays

Growing community of inventors

Livermore, CA, United States of America

Paul N Ludwig