METHOD OF PREPARING AN ORIENTATION CONTROL FILM FOR A LIQUID CRYSTAL DISPL AY ELEMENT

• Main Authors: IWASAKI KISHIROU, ASAI OSAMU, OOGAMI MICHIO
• Format: Patent
• Language: English
• Published: 09.04.1977
• Subjects: ADVERTISING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; 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; DIFFUSION TREATMENT OF METALLIC MATERIAL; DISPLAY; DISPLAYING; EDUCATION; FREQUENCY-CHANGING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LABELS OR NAME-PLATES; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEALS; SIGNS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PURPOSE:To subject to vacuum vapor deposition an orientation control film for an electric field type liquid crystal display element, which shows an excellent orientating property; this being accomplished by providing a grating for passing only the particles in a given incident direction.