公开(公告)号：FR2747839B1

公开(公告)日：1998-07-03

申请号：FR9605121

申请日：1996-04-18

Applicant: PIXTECH SA

Inventor： MOUGIN STEPHANE ,  CATANIA PHILIPPE ,  HAMON OLIVIER

IPC: H01J31/12 ,  H01J9/39 ,  H01J29/04 ,  H01J29/32 ,  H01J29/88 ,  H01J29/94 ,  H01J9/20

公开(公告)号：FR2756417A1

公开(公告)日：1998-05-29

申请号：FR9614615

申请日：1996-11-22

Applicant: PIXTECH SA

Inventor： GRAND CLEMENT JEAN LUC ,  JAGER AXEL

IPC: H01J29/62 ,  G09F9/30 ,  G09G3/20 ,  G09G3/22 ,  H01J31/12 ,  H01J29/58

Abstract: The focussing grid structure is formed to focus onto an anode with different luminous elements (7r,7g,7b) all at the same voltage. Micropoints (2) are placed between an output grid (3) and three additional grids (15,16,17) are placed on top. Each grid defines a coaxial hole (19,20;21,22;23,24) in that area. The additional grids are arranged to activate the sub-pixels of the different colours.

公开(公告)号：FR2748346A1

公开(公告)日：1997-11-07

申请号：FR9605930

申请日：1996-05-06

Applicant: PIXTECH SA

Inventor： MOUGIN STEPHANE ,  REYNAUD GUY ,  OULES CHATON CATHERINE

IPC: H01J31/12 ,  G09F9/30 ,  H01J29/08 ,  H01J29/28

Abstract: The screen has a cathode composed of microdots (2) for electron bombardment of an anode (5) provided with luminophores (7) of the primary colours on strips (9) of indium-tin oxide deposited on the glass (6). The strips are separated by insulation (20) whose surface (21) has a secondary emission coefficient less than 1 at least within the range of primary electron energies. Each insulating strip of e.g. silicon dioxide has sufficient resistivity to prevent breakdown between two neighbouring luminophores. Its surface may have a coating of low-emission material (e.g. silicon) to a thickness of about 100 Angstrom with a gap of 5-10 mu m at each edge.

公开(公告)号：FR2747839A1

公开(公告)日：1997-10-24

申请号：FR9605121

申请日：1996-04-18

Applicant: PIXTECH SA

Inventor： MOUGIN STEPHANE ,  CATANIA PHILIPPE ,  HAMON OLIVIER

IPC: H01J31/12 ,  H01J9/39 ,  H01J29/04 ,  H01J29/32 ,  H01J29/88 ,  H01J29/94 ,  H01J9/20

公开(公告)号：FR2735266B1

公开(公告)日：1997-08-22

申请号：FR9507017

申请日：1995-06-08

Applicant: PIXTECH SA

Inventor： BANCAL BERNARD ,  JAEGER AXEL

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

Abstract: The screen has an anode (5) with luminophores (7r,7g,7b) on at least two sets of conductive strips (9) which are bombarded with electrons from micropoints (2) of the cathode (1). The control introduces phases of regeneration during which the anode is at low potential while the corresponding cathode is biased in an emissive condition. The regenerative phases are interspersed among the display phases within a repetitive cycle whereby the red, green and blue subframe periods follow one another with a regenerative period between each blue and the next red.

公开(公告)号：FR2730843B1

公开(公告)日：1997-05-09

申请号：FR9502066

申请日：1995-02-17

Applicant: PIXTECH SA

Inventor： BANCAL BERNARD

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

Abstract: A flat display screen has a micro-point cathode (1) and a grid (3) with corresponding holes. The anode (5) is organised in red, green, and blue columns (7) and their supply polarity is individually controlled by switching (21) and counting (22) units. The counting unit (22) produces a potential proportional to the charge on the individual anode column and this is compared to a preset threshold value of brilliance (LUM) by an operational amplifier within the switching unit (21). When the threshold is reached the applied potential is reduced to earth preventing any further increase in brilliance.

公开(公告)号：FR2731840A1

公开(公告)日：1996-09-20

申请号：FR9503376

申请日：1995-03-17

Applicant: PIXTECH SA

Inventor： SOL JEAN MARC

IPC: H01J9/24 ,  H01J31/12 ,  H01J29/08 ,  H01J1/88

Abstract: The screen is formed of two electrodes separated by an internal space. One of the electrodes is supported by a thin substrate and a thick rigid plate. The internal space is defined by a peripheral framework between the electrodes outside of their usable surface. The second electrode is carried on a thick rigid plate formed of a thick substrate. The internal face of the substrate forms the second electrode. The plate associated with the first electrode forms a base of the screen and has an orifice through.

公开(公告)号：FR2730843A1

公开(公告)日：1996-08-23

申请号：FR9502066

申请日：1995-02-17

Applicant: PIXTECH SA

Inventor： BANCAL BERNARD

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

Abstract: A flat display screen has a micro-point cathode (1) and a grid (3) with corresponding holes. The anode (5) is organised in red, green, and blue columns (7) and their supply polarity is individually controlled by switching (21) and counting (22) units. The counting unit (22) produces a potential proportional to the charge on the individual anode column and this is compared to a preset threshold value of brilliance (LUM) by an operational amplifier within the switching unit (21). When the threshold is reached the applied potential is reduced to earth preventing any further increase in brilliance.

公开(公告)号：FR2783633B1

公开(公告)日：2003-02-07

申请号：FR9811823

申请日：1998-09-18

Applicant: PIXTECH SA

Inventor： MOUGIN STEPHANE

IPC: H01J31/12 ,  G09F9/30 ,  H01J3/02 ,  H01J1/304

公开(公告)号：DE69523556T2

公开(公告)日：2002-10-10

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.