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1. WO1996006423 - DRIVING METHOD FOR A LIQUID CRYSTAL DISPLAY DEVICE

Publication Number WO/1996/006423
Publication Date 29.02.1996
International Application No. PCT/JP1995/001656
International Filing Date 22.08.1995
IPC
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
36using liquid crystals
CPC
G09G 3/2011
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
2007Display of intermediate tones
2011by amplitude modulation
G09G 3/2018
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
2007Display of intermediate tones
2018by time modulation using two or more time intervals
G09G 3/3622
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3622using a passive matrix
G09G 3/3625
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
3622using a passive matrix
3625using active addressing
Applicants
  • ASAHI GLASS COMPANY LTD. [JP/JP]; 1-2, Marunouchi 2-chome Chiyoda-ku Tokyo 100, JP (AllExceptUS)
  • HIRAI, Yoshinori [JP/JP]; JP (UsOnly)
  • NAKAZAWA, Akira [JP/JP]; JP (UsOnly)
  • NAGAI, Makoto [JP/JP]; JP (UsOnly)
  • KUWATA, Takeshi [JP/JP]; JP (UsOnly)
  • MOTEGI, Hiroyuki [JP/JP]; JP (UsOnly)
  • KAWAGUCHI, Kazuyoshi [JP/JP]; JP (UsOnly)
Inventors
  • HIRAI, Yoshinori; JP
  • NAKAZAWA, Akira; JP
  • NAGAI, Makoto; JP
  • KUWATA, Takeshi; JP
  • MOTEGI, Hiroyuki; JP
  • KAWAGUCHI, Kazuyoshi; JP
Agents
  • YAMAMOTO, Ryozo ; Torimoto Kogyo Building 38, Kanda-Higashimatsushitacho Chiyoda-ku Tokyo 101, JP
Priority Data
6/19876623.08.1994JP
6/19990824.08.1994JP
6/31702720.12.1994JP
7/12141519.05.1995JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DRIVING METHOD FOR A LIQUID CRYSTAL DISPLAY DEVICE
(FR) PROCEDE D'EXCITATION D'UN DISPOSITIF D'AFFICHAGE A CRISTAUX LIQUIDES
Abstract
(EN)
A driving method for a direct addressing type liquid crystal display device for displaying gradation by changing the amplitude of voltages applied to pixels, wherein a series of voltage pulses, as signal voltages, composed of a plurality of different voltage levels are applied in order to display a specified gradation, and for a display, a plurality of kinds of gradation in which a part of the voltage levels is commonly used are selected.
(FR)
L'invention concerne un procédé d'excitation d'un dispositif d'affichage à cristaux liquides, du type à adressage direct, permettant l'affichage d'une gradation grâce à une variation de l'amplitude des tensions appliquées aux pixels. Selon l'invention, une série d'impulsions de tension, en tant que tensions de signal, composées d'une pluralité de niveaux différents de tension, est appliquée pour afficher une gradation spécifiée, une pluralité de sortes de gradation dans lesquelles une partie des niveaux de tension est habituellement utilisée étant sélectionnée pour un affichage.
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