LIQUID CRYSTAL DISPLAY CELL

PURPOSE:To obtain a liquid crystal display cell superior in sharpness and brightness, and suitable for enlargement of its size and formation of a curved face by sealing in liquid crystals between oriented plastic films having their principal orientation directions crossing each other at right angles...

Full description

Saved in:
Bibliographic Details
Main Authors OOTAKI TOSHIHIRO, NAGATA RIYUUICHI, YOSHII TOSHIYA
Format Patent
LanguageEnglish
Published 02.11.1984
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:PURPOSE:To obtain a liquid crystal display cell superior in sharpness and brightness, and suitable for enlargement of its size and formation of a curved face by sealing in liquid crystals between oriented plastic films having their principal orientation directions crossing each other at right angles, and a specified difference of retardation values between them. CONSTITUTION:Liquid crystals are sealed in between two oriented plastic films having their principal orientation directions crossing each other at almost right angles and the difference of retardation values between them not below 200mum. Said principal orientation direction means the direction in which its refractive index becomes max. When said principal orientation directions are parallel to each other, the yield of production of the liquid crystal display cell is low, and raises its cost, so it is not desirable. Twisted nematic type, guest-host type, and dynamic scattering type liquid crystals are used, and above all, the twister nematic type liquid crystals are preferable.
Bibliography:Application Number: JP19830068776