Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRODUCTION OF SHOCK-RESISTANT LIQUID CRYSTAL SWITCHING AND DISPLAY DEVICE
Document Type and Number:
Japanese Patent JPH03296021
Kind Code:
A
Abstract:

PURPOSE: To inexpensively obtain a shock-resistant liquid crystal switching element and a display device by using a ferroelectric liquid crystal mixture containing an olephilic compd. for a liquid crystal material and applying continuous and periodical voltage till the liquid crystal layer shows bookshelf orientation or quasi-bookshelf orientation before starting the operation.

CONSTITUTION: This switching element consists of two supporting plates having at least one orienting layer, at least one polarizer attached to the supporting plate, and a liquid crystal material injected into the space between the two supporting plates. The liquid crystal material to be used here consists of a ferroelectric liquid crystal mixture containing at least one kind of a liquid crystal basic component and at least one kind of an olephilic compd. added to the component. Before starting up the element, continuous and periodical voltage is applied on electrodes of the switching element or a display device till the liquid crystal layer shows bookshelf or quasi-bookshelf orientation. Thereby, the obtd. liquid crystal switching element and the display device have excellent shock resistance and can be produced at a low cost.


Inventors:
KURAUSU ETSUSHIYAA
GEEAHARUTO IRIAN
NORUBERUTO REESHIYU
HARADA TAKAMASA
Application Number:
JP15660090A
Publication Date:
December 26, 1991
Filing Date:
June 14, 1990
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HOECHST AG
International Classes:
C07D225/02; C07D273/08; C07D323/00; C07D405/12; C07D498/08; C09K19/54; C09K19/56; G02F1/13; G02F1/1337; G02F1/137; G02F1/133; G02F1/141; G09F9/35; (IPC1-7): C07D225/02; C07D273/08; C07D323/00; C07D405/12; C07D498/08; C09K19/56; G02F1/133; G02F1/1337; G02F1/137; G09F9/35
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)



 
Previous Patent: PRODUCTION OF COLOR FILTER

Next Patent: WHITE FILM