Title:
【発明の名称】多重アドレス指定液晶ディスプレイ及び液晶ディスプレイの多重アドレス指定方法
Document Type and Number:
Japanese Patent JP2637811
Kind Code:
B2
Abstract:
A ferro-electric liquid crystal display is multiplex addressed by blanking and strobe waveforms applied in sequence to each electrode in one set of electrodes coincidentally with data waveforms applied to a second set of electrodes. Liquid crystal material in the display is switched by a d.c. pulse of appropriate polarity, amplitude and time. The strobe waveforms have a pulse pair comprising two pulses of different amplitude and the same or different sign. Data waveforms are rectangular waveforms of opposite sign. The amplitude and ratio of leading pulses to trailing pulses in each strobe pulse pair are adjusted to obtain the desired switching and contrast. Compensation for temperature changes is arranged by measuring the temperature of the liquid crystal material and using the value obtained to adjust the amplitude value of the leading pulse in each strobe pulse pair.
Inventors:
HYUUZU JONASAN RENII
Application Number:
JP50886888A
Publication Date:
August 06, 1997
Filing Date:
November 16, 1988
Export Citation:
Assignee:
IGIRISU
International Classes:
G02F1/133; G09G3/36; (IPC1-7): G02F1/133; G09G3/36
Domestic Patent References:
| JP62255919A | ||||
| JP61286819A | ||||
| JP61230197A | ||||
| JP60156046A | ||||
| JP62502069A |
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)