Global Patent Index - EP 0589523 B1

EP 0589523 B1 19971217 - Display device

Title (en)

Display device

Title (de)

Anzeigevorrichtung

Title (fr)

Dispositif de visualisation

Publication

EP 0589523 B1 19971217 (EN)

Application

EP 93202700 A 19930917

Priority

  • EP 93202700 A 19930917
  • EP 92202948 A 19920925

Abstract (en)

[origin: EP0589523A1] By incorporating two-pole circuits (13) as switching elements in a picture display device based on field emission, the emission (and hence the picture intensity) is substantially defined by the charge of a capacitance (15) associated with a part of a pixel (8). Charge-controlled drive leads to a more accurate adjustment than the voltage-controlled drive used until now and leads to lower drive voltages, less power consumption and a longer lifetime of the phosphors used in the display device. <IMAGE>

IPC 1-7

H01J 31/12

IPC 8 full level

G09G 3/22 (2006.01); H01J 31/12 (2006.01)

CPC (source: EP)

G09G 3/22 (2013.01); H01J 31/127 (2013.01); G09G 2300/08 (2013.01); H01J 2201/319 (2013.01)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0589523 A1 19940330; EP 0589523 B1 19971217

DOCDB simple family (application)

EP 93202700 A 19930917