Global Patent Index - EP 1548698 A1

EP 1548698 A1 20050629 - Driving circuit of an liquid crystal display and its driving method

Title (en)

Driving circuit of an liquid crystal display and its driving method

Title (de)

Steuerschaltung einer Flüssigkristallanzeige und Steuerverfahren dafür

Title (fr)

Circuit de commande d'un dispositif d'affichage à cristaux liquides et sa méthode de commande

Publication

EP 1548698 A1 20050629 (EN)

Application

EP 03029643 A 20031222

Priority

EP 03029643 A 20031222

Abstract (en)

A method for driving a liquid crystal display (LCD) panel includes receiving continuously a plurality of frame data, generating a plurality of data impulses (GN,GN(2)) for each pixel every frame period according to the frame data, and applying the plurality of data impulses to a pixel of a liquid crystal device within a frame period via the data line connected to the pixel in order to control a transmission rate of the liquid crystal device. A processing circuit (42) a plurality of overdriven pixel data (GN) according to the current pixel data (Gm) and delayed pixel data (Gm-1). Stored in a first memory (44). A second memory (46) outputs the plurality of overdriven pixel data (GN,GN(2)) to each pixel. <IMAGE>

IPC 1-7

G09G 3/36

IPC 8 full level

G09G 3/20 (2006.01); G09G 3/36 (2006.01)

CPC (source: EP)

G09G 3/2011 (2013.01); G09G 3/3648 (2013.01); G09G 3/2025 (2013.01); G09G 3/2081 (2013.01); G09G 2320/0252 (2013.01); G09G 2320/0261 (2013.01); G09G 2340/16 (2013.01)

Citation (search report)

Citation (examination)

JP H0662355 A 19940304 - MATSUSHITA ELECTRIC IND CO LTD

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1548698 A1 20050629

DOCDB simple family (application)

EP 03029643 A 20031222