EP 0683920 A4 19980415 - FLAT PANEL DEVICE WITH INTERNAL SUPPORT STRUCTURE AND/OR RAISED BLACK MATRIX.

Title (en)

FLAT PANEL DEVICE WITH INTERNAL SUPPORT STRUCTURE AND/OR RAISED BLACK MATRIX.

Title (de)

FLACHTAFEL-VORRICHTUNG MIT INNERER TRAGSTRUKTUR UND/ODER RELIEF-SCHWARZMATRIX.

Title (fr)

DISPOSITIF A PANNEAU PLAT POURVU D'UNE STRUCTURE INTERNE DE SUPPORT ET/OU D'UNE MATRICE NOIRE EN RELIEF.

Publication

EP 0683920 A4 19980415 (EN)

Application

EP 94908603 A 19940201

Priority

US 1254293 A 19930201
US 18885694 A 19940131
US 18885794 A 19940131
US 9400602 W 19940201

Abstract (en)

[origin: WO9418694A1] A flat panel device (300) includes a spacer (308) for providing internal support. The spacer can be made of ceramic or glass-ceramic. Spacer surfaces exposed within the flat panel device are treated to reduce secondary emissions and prevent charging of the spacer surfaces. A light-emitting structure contains a main section (302), a pattern of dark ridges (314) situated along the main section, and a plurality of electron-activated light-emissive regions (313) situated in spaces between the ridges. The dark ridges extend further away from the main section than the light-emissive regions to form a raised black matrix. When the light-emitting structure is used in an optical display, the raised black matrix contacts spacers (308) and, in so doing, protects the light-emissive regions from being damaged. The light-emitting structure can be formed according to various techniques of the invention.

IPC 1-7

H01J 63/02; H01J 9/26

IPC 8 full level

H01J 9/18 (2006.01); H01J 9/227 (2006.01); H01J 9/24 (2006.01); H01J 17/49 (2006.01); H01J 29/02 (2006.01); H01J 29/08 (2006.01); H01J 29/32 (2006.01); H01J 29/46 (2006.01); H01J 29/86 (2006.01); H01J 29/87 (2006.01); H01J 31/12 (2006.01); H01J 61/30 (2006.01)

CPC (source: EP)

H01J 9/185 (2013.01); H01J 9/242 (2013.01); H01J 29/028 (2013.01); H01J 29/085 (2013.01); H01J 29/327 (2013.01); H01J 29/467 (2013.01); H01J 29/864 (2013.01); H01J 31/127 (2013.01); H01J 61/30 (2013.01); H01J 2329/08 (2013.01); H01J 2329/323 (2013.01); H01J 2329/864 (2013.01); H01J 2329/8645 (2013.01); H01J 2329/8655 (2013.01)

Citation (search report)

[X] FR 2394888 A1 19790112 - PHILIPS NV [NL]
[A] EP 0404022 A2 19901227 - MATSUSHITA ELECTRIC IND CO LTD [JP]
[X] EP 0002000 A1 19790530 - SIEMENS AG [DE]
[PX] EP 0580244 A1 19940126 - KONINKL PHILIPS ELECTRONICS NV [NL]
[A] EP 0048839 A1 19820407 - SIEMENS AG [DE]
[A] EP 0050294 A1 19820428 - MATSUSHITA ELECTRIC IND CO LTD [JP]
[A] EP 0523702 A1 19930120 - CANON KK [JP]
[A] US 4099082 A 19780704 - CHODIL GERALD J, et al
[X] US 3808497 A 19740430 - GREESON J, et al
[A] DE 2410011 A1 19740926 - BURROUGHS CORP
[A] EP 0405262 A1 19910102 - MATSUSHITA ELECTRIC IND CO LTD [JP]
See references of WO 9418694A1

Designated contracting state (EPC)

DE ES FR GB IT NL

DOCDB simple family (publication)

WO 9418694 A1 19940818; AU 6163494 A 19940829; DE 69430568 D1 20020613; DE 69430568 T2 20030109; DE 69430568 T3 20070426; EP 0683920 A1 19951129; EP 0683920 A4 19980415; EP 0683920 B1 20020508; EP 0683920 B2 20060412; JP 3595336 B2 20041202; JP H08508846 A 19960917

DOCDB simple family (application)

US 9400602 W 19940201; AU 6163494 A 19940201; DE 69430568 T 19940201; EP 94908603 A 19940201; JP 51805294 A 19940201