Global Patent Index - EP 0655768 A1

EP 0655768 A1 19950531 - Picture display device having a flat vacuum tube.

Title (en)

Picture display device having a flat vacuum tube.

Title (de)

Bildwiedergabegerät mit Flachröhre.

Title (fr)

Dispositif d'affichage d'images avec tube plat.

Publication

EP 0655768 A1 19950531 (EN)

Application

EP 94203348 A 19941117

Priority

BE 9301297 A 19931125

Abstract (en)

A picture display device having a flat vacuum envelope which is provided with a transparent face plate with a luminescent screen and with a rear wall, which display device has an electron supply section with an electron source for emitting electron currents in a direction parallel to the face plate, and an active selection electrode section with first, preselection, electrodes and second, fine-selection, electrodes, located closer to the screen, for directing each electron current towards desired pixels on the luminescent screen. The fine-selection electrodes are divided into groups and corresponding fine-selection electrodes of at least two groups are interconnected in a series or parallel arrangement in such a way that the technology of providing these electrodes is as simple as possible and/or the possible fine-selection electrode patterns are such that the number of required selection drivers can be reduced considerably. <IMAGE>

IPC 1-7

H01J 31/12

IPC 8 full level

H01J 29/46 (2006.01); H01J 31/12 (2006.01)

CPC (source: EP KR)

H01J 31/126 (2013.01 - EP); H01J 31/15 (2013.01 - KR)

Citation (search report)

Designated contracting state (EPC)

AT DE FR GB NL

DOCDB simple family (publication)

EP 0655768 A1 19950531; BE 1007780 A3 19951017; JP H07192662 A 19950728; KR 950015481 A 19950616

DOCDB simple family (application)

EP 94203348 A 19941117; BE 9301297 A 19931125; JP 31579094 A 19941125; KR 19940031145 A 19941125