PRODUCTION OF SMECTIC LIQUID CRYSTAL DISPLAY

PROBLEM TO BE SOLVED: To avoid injection of a liquid crystal by a disadvantageous capillary effect which requires a long time and to enable mass-production in a factory by applying a smectic liquid crystal layer in a thin film state on at least one of supporting substrates by printing. SOLUTION: A s...

Full description

Saved in:
Bibliographic Details
Main Author DUBAL HANS-ROLF DR
Format Patent
LanguageEnglish
Published 18.02.2000
Edition7
Subjects
ADVERTISING
CRYPTOGRAPHY
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
DISPLAY
DISPLAYING
EDUCATION
FREQUENCY-CHANGING
LABELS OR NAME-PLATES
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
SEALS
SIGNS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To avoid injection of a liquid crystal by a disadvantageous capillary effect which requires a long time and to enable mass-production in a factory by applying a smectic liquid crystal layer in a thin film state on at least one of supporting substrates by printing. SOLUTION: A smectic liquid crystal layer or a mixture containing a smectic liquid crystal is applied on at least one of two substrates by printing, and these substrates are assembled. The printing method includes screen printing, offset printing, flexographic printing or other conventional printing methods. The substrates are bonded, heated and cooled. As a result, the liquid crystal is subjected to various kinds of phase transition and realigned. Also, curing of an adhesive frame is completed. In order to determine the proper viscosity in the printing process, viscosity is measured as a function of the shear rate and temp. Then the shear rate range concerning to the coating process is measured, and the measured viscosity is averaged in this range.
Bibliography:Application Number: JP19990206534