EP 1234300 B1 20030604 - METHOD FOR COMPENSATING PERTURBATIONS CAUSED BY DEMULTIPLEXING AN ANALOG SIGNAL IN A MATRIX DISPLAY
Title (en)
METHOD FOR COMPENSATING PERTURBATIONS CAUSED BY DEMULTIPLEXING AN ANALOG SIGNAL IN A MATRIX DISPLAY
Title (de)
VERFAHREN ZUR KOMPENSATION VON DURCH DEMULTIPLEXEN EINES ANALOGEN SIGNALS VERURSACHTEN STÖRUNGEN IN EINER MATRIXANZEIGE
Title (fr)
PROCEDE DE COMPENSATION DES PERTURBATIONS DUES AU DEMULTIPLEXAGE D'UN SIGNAL ANALOGIQUE DANS UN AFFICHEUR MATRICIEL
Publication
Application
Priority
- FR 0003307 W 20001127
- FR 9915084 A 19991130
Abstract (en)
[origin: WO0141112A2] The invention concerns a method for compensating perturbations caused by demultiplexing an analog signal on a circuit comprising N data lines, wherein the demultiplexing is carried out by sampling-holding circuits whereof the input receives the analog signal and the output is connected to one of the N data lines, the N sampling-holding circuits being controlled successively by a sampling signal (ECHi). When the sampling signal (ECHi) is applied on one of the sampling-holding circuits, an opposite compensation level (V3) lower than the sampling signal level is applied on the N-1 sampling-holding circuits. The invention is particularly applicable to LCD screens.
IPC 1-7
IPC 8 full level
G02F 1/133 (2006.01); G09G 3/20 (2006.01); G09G 3/36 (2006.01); G09G 3/32 (2006.01)
CPC (source: EP KR US)
G09G 3/36 (2013.01 - KR); G09G 3/3688 (2013.01 - EP US); G09G 3/2011 (2013.01 - EP US); G09G 3/3208 (2013.01 - EP US); G09G 2310/0297 (2013.01 - EP US); G09G 2310/06 (2013.01 - EP US); G09G 2320/0209 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 0141112 A2 20010607; WO 0141112 A3 20011227; DE 60003225 D1 20030710; DE 60003225 T2 20040429; EP 1234300 A2 20020828; EP 1234300 B1 20030604; FR 2801750 A1 20010601; FR 2801750 B1 20011228; JP 2003515773 A 20030507; JP 4887594 B2 20120229; KR 100744988 B1 20070802; KR 20020084063 A 20021104; US 6977638 B1 20051220
DOCDB simple family (application)
FR 0003307 W 20001127; DE 60003225 T 20001127; EP 00985336 A 20001127; FR 9915084 A 19991130; JP 2001542091 A 20001127; KR 20027006007 A 20020509; US 14855602 A 20020530