公开(公告)号：CA2357640A1

公开(公告)日：2002-03-26

申请号：CA2357640

申请日：2001-09-24

Applicant: IBM

Inventor： FUJIO SHOHHEI ,  KANZAKI EISUKE ,  YAMASHITA HIROSHI

IPC: G06F3/00 ,  G06F13/00 ,  G06F13/38 ,  G06F13/42 ,  G09G3/36 ,  H04L25/02 ,  H04L29/02 ,  G09G3/18

Abstract: When data is transferred from a controller of a liquid crystal display devic e to each driver through a predetermined number of signal lines, the Transferring Data are divided into a plurality of groups by forming the signal lines into groups beforehand. For each group , the combination of inversion/non-inversion of the data to be transmitted is examined, a well- balanced combination is selected so as to reduce EMI. Further, a control range is set and, for each group, data inversion is selected according to whether the number of "data to be transmitted" differe nt from "data transmitted immediately therebefore" is in the control range or not.