Global Patent Index - EP 1164622 A2

EP 1164622 A2 2001-12-19 - Channel plate made of glass for flat pannel displays and method for producing the same

Title (en)

Channel plate made of glass for flat pannel displays and method for producing the same

Title (de)

Kanalplatte aus Glas für Flachbildshirme und Verfahren zu ihrer Herstellung

Title (fr)

Plaque à canaux en verre destinée à constituer des écrans d'affichage plats et sa méthode de fabrication

Publication

EP 1164622 A2 (DE)

Application

EP 01109103 A

Priority

DE 10026976 A

Abstract (en)

[origin: CA2349302A1] A television flat panel display which has a housing, a viewing screen disposed in the housing; the viewing screen comprises a first sheet disposed in the housing as the front sheet of the display, a power input arrangement configured and disposed to power the display, an arrangement to produce picture elements as pixels, this arrangement at least comprising: an array of electrodes, a material configured to be energized by the electrodes, and addressing circuitry connected to the electrodes and the power input arrangement, the addressing circuitry being configured to convert electrical signal input to the material configured to be energized into optical signal output viewable as pixels on a particular point on the first sheet of the display. The material to be energized and the electrodes are disposed in a channel member comprising a plate-like structure with a plurality of ribs forming a plurality of grooves. The ribs are spaced apart at a predetermined pitch to correspond to pixel resolution of the flat panel display. A layer on the ribs comprises a substantially non-transparent material with a sufficient optical density to minimize stray radiation and/or leakage radiation in the ribs to thereby enhance picture and/or color contrast of the flat panel display. The assembly also includes apparatus to maintain the channel member and said first sheet in alignment with respect to one another.

Abstract (de)

Derartige Kanalplatten weisen typischerweise eine Vielzahl von parallel verlaufenden, durch Stege (1) getrennte Kanäle (2) auf, die auf einer flachen Glasplatte (4) mikrostrukturiert ausgeformt sind. Die Kanäle (2) werden beispielsweise durch ein hochpräzises Mehrscheiben-Schleifwerkzeug in die flache Rechteck-Glasplatte (4) eingeschliffen, die vorzugsweise zuvor mindestens auf der Seite, auf der die Kanalstruktur eingearbeitet wird, hochpräzise plangeschliffen ist. Um den Bild- und Farbkontrast des auf dem Flachbildschirm erzeugten Bildes zu erhöhen, sind zumindest die Oberkanten der Stege (1) durch eine nichttransparente Schicht (5) abgedeckt. <IMAGE>

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

H01J 17/16; H01J 9/24; H01J 17/49

IPC 8 full level (invention and additional information)

G02F 1/1333 (2006.01); B24B 19/03 (2006.01); H01J 9/02 (2006.01); H01J 9/24 (2006.01); H01J 17/16 (2012.01)

CPC (invention and additional information)

H01J 9/242 (2013.01); B24B 19/03 (2013.01); H01J 11/12 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1164622 A2 20011219; CA 2349302 A1 20011130; CN 1333523 A 20020130; DE 10026976 A1 20011213; DE 10026976 C2 20020801; JP 2002056782 A 20020222; US 2002012076 A1 20020131

INPADOC legal status


2003-11-05 [18W] APPLICATION WITHDRAWN

- Effective date: 20030908

2002-01-02 [RTI1] TITLE (CORRECTION)

- Free text: CHANNEL PLATE MADE OF GLASS FOR FLAT PANEL DISPLAYS AND METHOD FOR PRODUCING THE SAME

2001-12-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010412

2001-12-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2001-12-19 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI