Global Patent Index - EP 1845508 A1

EP 1845508 A1 20071017 - System and method of providing driving voltages to an RGBW display panel

Title (en)

System and method of providing driving voltages to an RGBW display panel

Title (de)

System und Verfahren zur Bereitstellung von Ansteuerspannungen für eine RGBW-Anzeigetafel

Title (fr)

Système et procédé d'alimentation d'un panneau d'affichage RGBW en tensions de commande

Publication

EP 1845508 A1 20071017 (EN)

Application

EP 06112633 A 20060413

Priority

EP 06112633 A 20060413

Abstract (en)

A representative system comprises a data driver with a reference voltage generation circuit that is operative to provide reference voltages according to a white component signal (W) extracted from three color input signals (R,G,B), and a digital-to-analog (D/A) conversion unit that is operative to generate driving voltages according to the reference voltages, the three color input signals and the white component signal.

IPC 8 full level

G09G 3/20 (2006.01); G09G 3/32 (2006.01)

CPC (source: EP)

G09G 3/2003 (2013.01); G09G 3/3225 (2013.01); G09G 3/3611 (2013.01); G09G 2300/0452 (2013.01); G09G 2310/027 (2013.01); G09G 2330/028 (2013.01); G09G 2340/06 (2013.01)

Citation (applicant)

Citation (search report)

  • [X] EP 1298637 A2 20030402 - SAMSUNG ELECTRONICS CO LTD [KR]
  • [A] EP 0547603 A2 19930623 - TEXAS INSTRUMENTS INC [US]
  • [A] US 2004113875 A1 20040617 - MILLER MICHAEL E [US], et al
  • [A] US 6593934 B1 20030715 - LIAW MING-JIUN [TW], et al
  • [X] YOJIRO MATSUEDA ET AL: "38.4: 6-bit AMOLED with RGB Adjustable Gamma Compensation LTPS TFT Circuit", 2005 SID INTERNATIONAL SYMPOSIUM. BOSTON, MA, MAY 24 - 27, 2005, SID INTERNATIONAL SYMPOSIUM, SAN JOSE, CA : SID, US, 24 May 2005 (2005-05-24), pages 1352 - 1355, XP007012301

Designated contracting state (EPC)

DE FR GB IT NL

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

EP 1845508 A1 20071017; EP 1845508 B1 20120411

DOCDB simple family (application)

EP 06112633 A 20060413