Global Patent Index - EP 1652167 A2

EP 1652167 A2 20060503 - CONTROL OF AN ELECTROLUMINESCENT DISPLAY MATRIX

Title (en)

CONTROL OF AN ELECTROLUMINESCENT DISPLAY MATRIX

Title (de)

STEUERUNG EINER ELEKTROLUMINESZENZ-DISPLAY-MATRIX

Title (fr)

COMMANDE D'UNE MATRICE DE SYSTEME D'AFFICHAGE ELECTROLUMINESCENT

Publication

EP 1652167 A2 20060503 (EN)

Application

EP 04743662 A 20040804

Priority

  • GB 2004003374 W 20040804
  • GB 0318239 A 20030804

Abstract (en)

[origin: GB2404772A] An electroluminescent display 1 with a plurality of display elements arranged in rows X and columns Y to form a matrix. Each element is connected to a row-conductor associated with its respective row and to a column-conductor associated with its respective column such that the element may be illuminated by applying a voltage across the conductors. The display further comprises a driver comprising a half H-bridges H1 etc. which are controlled by controller 3 so as sequentially to supply drive voltages from rail 7. Full drive voltage is supplied to a row-conductor of a row that is to be driven and one third drive voltage is supplied to the remaining row-conductors. The column-conductor(s) associated with the elements to be illuminated are grounded. Two thirds voltage is applied to the conductors associated with the remainder of the columns.

IPC 1-7

G09G 3/32

IPC 8 full level

G09G 3/32 (2006.01)

CPC (source: EP GB)

G09G 3/30 (2013.01 - GB); G09G 3/3208 (2013.01 - EP GB); G09G 3/3216 (2013.01 - EP); G09G 3/3275 (2013.01 - EP); G09G 2310/0275 (2013.01 - EP); G09G 2320/0219 (2013.01 - EP); G09G 2320/0223 (2013.01 - EP)

Citation (search report)

See references of WO 2005015529A3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

GB 0318239 D0 20030903; GB 2404772 A 20050209; GB 2404772 B 20070307; EP 1652167 A2 20060503; WO 2005015529 A2 20050217; WO 2005015529 A3 20050331

DOCDB simple family (application)

GB 0318239 A 20030804; EP 04743662 A 20040804; GB 2004003374 W 20040804