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公开(公告)号：JPH1097834A
公开(公告)日：1998-04-14
申请号：JP12781697
申请日：1997-05-02
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE , REYNAUD GUY , OULES CHATON CATHERINE
Abstract: PROBLEM TO BE SOLVED: To improve the service life of a screen by making mutual separation of the surfaces of two sets of alternate parallel bands, at least within the energy range of the primary electrons and with an insulating band including such a material as having its secondary radiation factor less than one. SOLUTION: ITO band 9 of an anode 5' is separated by an insulating band 20 including the first insulating layer 8' made of silicone oxide, and the insulating layer 8' is coated with the very thin second layer of materials whose secondary radiation factor is less than one. In order to improve insulation between adjacent bands by providing spaces at both sides of layer 21, insulating space of the second layer 21 is made smaller in its width than that of the insulating layer 8'. Since the surface material 21 of the insulating band 20 has its secondary radiation factor less than one, the end of the surface material 21 is subjected to negative electric load so that its screen makes action when the primary electrons are passed form a micro-chip. This negative electric load increases up to its electric load balancing point by applying negative bias to a band adjacent to the luminous element. Accordingly, any of color shift phenomenon can be eliminated.
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公开(公告)号：JP2000100357A
公开(公告)日：2000-04-07
申请号：JP26006899
申请日：1999-09-14
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE
Abstract: PROBLEM TO BE SOLVED: To minimize desorption of contaminants due to a layer insulating a negative electrode from a grid by incorporating a negative-electrode conductor between a substrate and a grid insulating layer, and forming a layer with a small bonding factor, at least between grid wires. SOLUTION: An insulating layer 4 made of silicon oxide is attached on a negative-electrode conductor, and conductive grids 5 formed of conducting wires 13 perpendicular to rows 3 of a negative electrode 11 are formed on the insulating layer 4. Microchips 10 are built in holes 14 formed, at least in the wires 13 and in the insulating layer 4, and gas emission preventing layers 20 are each provided between the grid wires 13. The gas emission preventing layer 20 masks, as wide as possible, surfaces of materials in the negative electrode/grids heavily emitting gases by impacts of electrons, and as the material used for this layer, an insulating material such as aluminum (Al2O3) is selected, so as to have not only a small bonding factor but also to maintain insulation between neighboring grid wires 13.
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公开(公告)号：JPH1097835A
公开(公告)日：1998-04-14
申请号：JP13055397
申请日：1997-05-06
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE , COURREGES FRANCIS , BANCAL BERNARD , RIVIERE CAZAUX LIONEL
Abstract: PROBLEM TO BE SOLVED: To eliminate any spark taking place on a screen peripheral edge by surrounding an active range by means of one track for collecting the re- discharged secondary electrons and separating the active range from the peripheral edge of the active range by means of an interval within the insulating material of the track. SOLUTION: An insulation interval 22 must be made sufficiently large for avoiding any electric arc taking place between an active range 20 and a collective link 21. However, the interval 22 is made as narrow as possible so as to avoid any expansion of a positive electric load range within this interval. The width of the interval 22 is made smaller than the average distance liable to be progressed by those secondary electrons discharged from the surface of this interval, with provision of allowance by a bias voltage. Thereby, the entire secondary electrons re-discharged from the insulating material 22 are collected by material 21. Accordingly, such a phenomenon as propagation of the secondary electrons to a sealed joint between an anode and a cathode. Furthermore, by having the ring 21 biased, the corresponding electric load can be eliminated.
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公开(公告)号：JPH11120918A
公开(公告)日：1999-04-30
申请号：JP22520198
申请日：1998-07-27
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE , CHASSAGNE PASCAL
Abstract: PROBLEM TO BE SOLVED: To provide a method for assembling two parallel plates containing a closed internal space in a furnace kept at the vacuum state or in the neutral atmosphere, optimizing the removal of the gas discharged in a screen, and suitable for batch processing. SOLUTION: In the first stage, a first seal 5 melted at the first temperature T1 is used to seal the periphery, and an opening is maintained by at least one of openings 13, 13' communicated with an internal space. The opening is closed by a closing part 14 having the insertion of a second seal 15 melted at the second temperature T2 lower than the first temperature T1.
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公开(公告)号：JPH1125889A
公开(公告)日：1999-01-29
申请号：JP19360298
申请日：1998-06-25
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE , RIVIERE CAZAUX LIONEL
Abstract: PROBLEM TO BE SOLVED: To prevent the decrease of the emission rate of a microchip by ion pumping by providing on a cathode side, a sacrificial region of an electron- emitting microchip which is addressable independently from an active region. SOLUTION: A cathode 1 is placed opposite to an anode for cathode emission, and an electron-emitting microchip 2 is deposited on a cathode conductor 7 formed in plural line. A main grid 3 is made by an electroconductive layer formed in a line perpendicular to a cathode conductor row. The cathode 1 contains a sacrificial microchip 2' in a sacrificial region, individually addressable from a line 7 by using an additional electrode 7'. This region is engaged with a sub-grid 3' individually addressable from the line of the main grid 3. In order to improve the degree of vacuum in a space 11 between electrodes, the sacrificial microchip 2' is addressed when a screen is completed, and ion pumping is carried out. It is preferable to repeat this process, even after using the screen to regenerate the vacuum for next usage.
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Patent Agency Ranking
公开(公告)号：JPH10134719A
公开(公告)日：1998-05-22
申请号：JP30633397
申请日：1997-10-22
Applicant: PIXTECH SA
Inventor： KANAGAWA SHINJI , LOBET MAURICE , SOL JEAN MARC , MOUGIN STEPHANE
IPC: H01J9/26
Abstract: PROBLEM TO BE SOLVED: To reduce a gaseous product by disposing a seal made of a glass rod and a spacer having a higher melting point and a greater height at the outer periphery of a screen between upper and lower plates respectively having an anode and a cathode, followed by heating up to a predetermined temperature in a vacuum. SOLUTION: A seal 20 formed of a soluble glass rod is stuck to the outside circumference of an acting area of a screen on a plate 4 with an anode formed thereon. A few glass spacers 22 are temporarily interposed between the seal 20 and the outside circumference of the acting area of the screen. A melting point of the glass of the spacer 22 is higher than that of the glass forming the seal 20, and considerably higher at that. A plate 1 with a cathode/grid formed thereon is placed on the plate 4, is heated in a vacuum at temperatures higher than the melting point of the seal 20 but lower than the melting point of the spacer 22, followed by mechanical pressing. Consequently, the spacer 22 is crushed, so as to be sealed therearound in a predetermined height by melting of the seal 20.
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公开(公告)号：JPH1055770A
公开(公告)日：1998-02-24
申请号：JP10012797
申请日：1997-04-17
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE , CATANIA PHILIPPE , HAMON OLIVIER
Abstract: PROBLEM TO BE SOLVED: To make discharge force of a microchip substantially constant by permitting an anode and a cathode insulated by a vacuum space to contain a gradual progressive hydrogen discharge source containing a film of hydrogenation material. SOLUTION: A hydrogen source is integrated with an insulation band 8, and this insulation band 8 insulates an anode 5 and an fluorescent band. In this case, activation of the hydrogen source is substantially performed by an electron bombard. An evaporation parameter of a selected one layer is adjusted so that hydrogen is taken by a material of this type. Evaporation of some layers employed for manufacturing of screen is generally performed by plasma strengthening chemical evaporation. Such an evaporation mode employs a mixture of a precursor compound of material to be evaporated. Adjustment of hydrogen contents to be added to the precursor is easy. The anode and cathode isolated by a vacuum space contains a gradual progressive hydrogen discharge source including hydrogenation material, and discharge force of the microchip can be adjusted constantly.
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公开(公告)号：FR2783633A1
公开(公告)日：2000-03-24
申请号：FR9811823
申请日：1998-09-18
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE
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公开(公告)号：FR2765392B1
公开(公告)日：2005-08-26
申请号：FR9708363
申请日：1997-06-27
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE , RIVIERE CAZAUX LIONEL
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公开(公告)号：FR2766964B1
公开(公告)日：1999-10-29
申请号：FR9709917
申请日：1997-07-29
Applicant: PIXTECH SA
Inventor： MOUGIN STEPHANE , CHASSAGNE PASCAL
IPC: H01J9/24 , H01J5/02 , H01J5/24 , H01J9/26 , H01J29/86 , H01J29/94 , H01J31/12 , H01J9/40 , H01J9/38
Abstract: The vacuum assembly method in an oven assembles two parallel screens (1,4) in an internal space (6). The peripheral sealing is effected in two steps. In the first step, a first sealing joint (5) is sealed, maintaining open a second hole (13) of communication with the internal space. In a second step, a closure element (16) seals a second sealing unit (15) sealed at a second temperature lower than the first sealing temperature.
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