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

IPC: H01J31/12 ,  H01J9/39 ,  H01J29/04 ,  H01J29/32 ,  H01J29/88 ,  H01J29/94

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.

公开(公告)号：JPH08298086A

公开(公告)日：1996-11-12

申请号：JP8713296

申请日：1996-03-18

Applicant: PIXTECH SA

Inventor： JIYANNMARUKU SORU

IPC: H01J9/24 ,  H01J31/12 ,  H01J1/30

Abstract: PROBLEM TO BE SOLVED: To provide a planar display screen, wherein space between electrodes is wide and inner surfaces of a substrate does not become dirty by supporting a first electrode with a thin substrate and a thick reinforcing plate, and by demarcating an interior space by a peripheral frame disposed between electrodes on the outside of the effective surface of each of the electrodes. SOLUTION: In a planar display screen, including a first and a second electrode separated from each other by an interior space 12, the first electrode is supported by a thin substrate 10 and a thick reinforcing plate 21, and the second electrode is supported by a thin substrate 6 and a thick reinforcing plate 20. The space 12 can be fixed by a simple peripheral rigid frame 22, by enhancing rigidity of a structure by using the plates 20, 21 fixed to an outer surface of a screen. Further, the space 12 between the electrodes of the screen can be widened by thickening the thickness of the frame 22, while deformation of the screen caused by a pressure difference between the interior and the exterior of the screen can be prevented by giving sufficient rigidity to the screen by the plates 20, 21. Accordingly, a spacer can be dispensed with, while the pollution of the substrate 10 inner surfaces caused by adhesion, soldering, and the like can be prevented.

公开(公告)号：JPH08293273A

公开(公告)日：1996-11-05

申请号：JP6636696

申请日：1996-03-22

Applicant: PIXTECH SA

Inventor： BERUNAARU BANKARU

IPC: G09G3/22 ,  H01J29/46 ,  H01J31/12

Abstract: PROBLEM TO BE SOLVED: To provide a flat display screen in which the numbers of the output stages and connections for assigning gate address are lower than the number of lines. SOLUTION: This flat display screen comprises cathodes 1, arranged in rows for giving electronic impact to anodes 5 containing phosphor elements 7, first gates 20 arranged in lines and addressed respectively, and second gates 23 constituted of at least two comb-like substances 24, 25 comprising routes mutually alternately in parallel to the lines of the first gate. Identical lines of the first gate are related with the routes of the respective comb-like substances and mutual connections of the respective routes, and the cathode rows define the pixels of a screen.

公开(公告)号：JPH08265674A

公开(公告)日：1996-10-11

申请号：JP5257296

申请日：1996-02-16

Applicant: PIXTECH SA

Inventor： BERUNAARU BANKARU

IPC: H04N5/70 ,  G09G3/20 ,  G09G3/22 ,  G09G3/30 ,  H01J31/12

Abstract: PROBLEM TO BE SOLVED: To warrant uniform lightness of pixels of a screen according to prescribed luminescence. SOLUTION: A device controlling electrodes of a flat display screen includes 1st electrodes being components of a micro chip cathode 1, 2nd electrodes being components of an anode 5 provided to a fluorescent element 7, and gates 3 placed on a row L. At least one of the electrodes is placed on columns R, G, B. The device includes a circuit that designates an address of each column individually and interrupts a bias of each column as soon as a voltage resulting from an electric charge applied to pixels of the screen reaches a threshold voltage equivalent to prescribed luminance.

公开(公告)号：EP0696045B1

公开(公告)日：1999-10-13

申请号：EP95410079.8

申请日：1995-08-02

Applicant: PIXTECH SA

Inventor： Clerc, Jean-Frédéric

IPC: H01J1/30 ,  H01J9/02

CPC classification number: H01J1/3042 ,  H01J2201/319 ,  H01J2329/00

公开(公告)号：EP0635819B1

公开(公告)日：1998-11-25

申请号：EP94401670.8

申请日：1994-07-20

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ,  PIXTECH SA

Inventor： Sarrasin, Denis ,  Garcia, Michel

IPC: G09G3/22

CPC classification number: G09G3/22 ,  G09G3/2011 ,  G09G3/2014

公开(公告)号：DE69719110T2

公开(公告)日：2003-10-09

申请号：DE69719110

申请日：1997-05-02

Applicant: PIXTECH SA

Inventor： GRAND-CLEMENT JEAN-LUC ,  BANCAL BERNARD

IPC: G09G3/20 ,  G09G3/22 ,  H01J31/12

Abstract: The screen has a cathode (2) formed of microdots arranged in columns (K1-K3) under an insulating coating which carries the pixel selection grid divided into rows (L1-L3). The colour selection grid has groups of slits (e.g. A1R,A1G,A1B) extending in the direction of the columns, each group covering the width of one column. Slits of the same rank in each group are connected to a common terminal. The anode is similarly divided into groups of parallel strips of luminophors of the primary colours, each strip corresponding to one slit, and all strips being returned to the same voltage.

公开(公告)号：DE69523556D1

公开(公告)日：2001-12-06

申请号：DE69523556

申请日：1995-08-23

Applicant: PIXTECH SA

Inventor： CLERC JEAN-FREDERIC

IPC: H01J29/87 ,  H01J29/02 ,  H01J29/82 ,  H01J29/94 ,  H01J31/12

Abstract: PCT No. PCT/FR95/01105 Sec. 371 Date Jul. 29, 1996 Sec. 102(e) Date Jul. 29, 1996 PCT Filed Aug. 23, 1995 PCT Pub. No. WO96/06450 PCT Pub. Date Feb. 29, 1996A flat display screen has a cathode including microtips for electronic bombardment associated with a gate, an anode including phosphor elements, and an inter-electrode gap. The screen includes an apertured insulating plate defining the inter-electrode gap associated with means for maintaining the plate apart from the anode.

公开(公告)号：FR2804243A1

公开(公告)日：2001-07-27

申请号：FR0000932

申请日：2000-01-25

Applicant: PIXTECH SA

Inventor： JAGER AXEL ,  COLAS DIDIER ,  PEYRE JEAN FRANCOIS

IPC: H01J31/12 ,  G09G3/20 ,  G09G3/22 ,  H01J31/20

Abstract: A method for regenerating a cathodoluminescent screen provided with at least one anode adapted to being excited by electron bombarding in a line scanning, consisting of providing regeneration phases during which the anode is at a quiescent potential, a portion only of the lines being addressable in a line scanning upon each regeneration phase, and cathodes being biased in a state corresponding to that of a preceding image.

公开(公告)号：FR2785719B1

公开(公告)日：2001-01-19

申请号：FR9814226

申请日：1998-11-09

Applicant: PIXTECH SA

Inventor： VALERO REMI

IPC: C09K11/00 ,  C09K11/02 ,  C09K11/08 ,  G09F9/00 ,  H01J9/227 ,  H01J29/28 ,  H01J1/70 ,  H01J31/12

Abstract: Formation of zinc oxide or indium oxide layer on the surface of a luminophor deposited on a substrate involves adding the luminophor grains to an aqueous solution containing dissolved zinc nitrate or indium nitrate, polyvinyl alcohol (serigraphic binder) and antifoaming agent in water, deposition, and annealing. 1-0.6g of the nitrate and 6-10g of the luminophor are dissolved in 10g of the solution. The luminophor is selected from the following: Gd2O2S:Tb, Y2SiO5:Tb, Y2SiO5:Ce, Y2O3:Eu and ZnO:Zn. Annealing is carried out at 400-500 degrees C for several hours.