Global Patent Index - EP 0676084 B1

EP 0676084 B1 2000-07-05 - TRIODE STRUCTURE FLAT PANEL DISPLAY EMPLOYING FLAT FIELD EMISSION CATHODES

Title (en)

TRIODE STRUCTURE FLAT PANEL DISPLAY EMPLOYING FLAT FIELD EMISSION CATHODES

Title (de)

FLACHE FELDEMISSIONSKATHODE ANWENDENDE FLACHE ANZEIGEVORRICHTUNG MIT TRIODENSTRUKTUR

Title (fr)

AFFICHAGE A ECRAN PLAT A STRUCTURES TRIODE UTILISANT DES CATHODES PLATES A EMISSION DE CHAMP

Publication

EP 0676084 B1 (EN)

Application

EP 94905334 A

Priority

  • US 9311791 W
  • US 99386392 A

Abstract (en)

[origin: WO9415352A1] A flat panel display for displaying visual information includes a plurality of corresponding light-emitting anodes (130), and field-emission cathodes (170), each of the anodes emitting light in response to emission from each of the corresponding cathodes, each of the cathodes (170) including a layer of low work function material having a relatively flat emission surface of a plurality of distributed localized electron emission sites and a grid assembly (102) interposed between the corresponding anodes (130) and cathodes (170) to thereby control emission levels to the anodes from the corresponding cathodes.

IPC 1-7 (main, further and additional classification)

H01J 31/12

IPC 8 full level (invention and additional information)

H01J 1/304 (2006.01); H01J 9/02 (2006.01); H01J 29/04 (2006.01); H01J 31/12 (2006.01); H01J 63/06 (2006.01)

CPC (invention and additional information)

H01J 63/06 (2013.01); H01J 1/304 (2013.01); H01J 1/3042 (2013.01); H01J 9/027 (2013.01); H01J 31/127 (2013.01); H01J 2201/30457 (2013.01); H01J 2201/319 (2013.01); H01J 2329/8625 (2013.01)

Citation (examination)

  • WO 9105361 A1 19910418 - MOTOROLA INC [US]
  • C.WANG ET AL.: "Cold Field Emission from CVD Diamond Films Observed in Emission Electron Microscopy", ELECTRONICS LETTERS, vol. 27, no. 16, 1 August 1991 (1991-08-01), GB, pages 1459 - 1461, XP000259873

Designated contracting state (EPC)

DE FR GB NL

EPO simple patent family

WO 9415352 A1 19940707; AU 5897494 A 19940719; CA 2152472 A1 19940707; DE 69328977 D1 20000810; DE 69328977 T2 20001228; DE 69333555 D1 20040722; DE 69333555 T2 20050818; EP 0676084 A1 19951011; EP 0676084 A4 19970219; EP 0676084 B1 20000705; EP 0971386 A2 20000112; EP 0971386 A3 20000517; EP 0971386 B1 20040616; JP H08505259 A 19960604

INPADOC legal status


2003-10-10 [REG FR ST] NOTIFICATION OF LAPSE

2003-09-01 [NLV4] NL: LAPSED OR ANULLED DUE TO NON-PAYMENT OF THE ANNUAL FEE

- Effective date: 20030701

2003-09-01 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2003-07-30 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

2003-07-01 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2001-06-20 [26N] NO OPPOSITION FILED

2000-09-15 [ET] FR: TRANSLATION FILED

2000-08-10 [REF] CORRESPONDS TO:

- Document: DE 69328977 20000810

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB NL

1997-06-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19970506

1997-02-19 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 19970102

1997-02-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE FR GB NL

1997-02-12 [RHK1] MAIN CLASSIFICATION (CORRECTION)

- IPC: H01J 31/12

1996-01-17 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KUMAR, NALIN

1996-01-17 [RIN1] INVENTOR (CORRECTION)

- Inventor name: XIE, CHENGGANG

1995-11-22 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: SI DIAMOND TECHNOLOGY, INC.

1995-10-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19950714

1995-10-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB NL