INFORMATION RECORDING MEDIUM FORMED BY USING HIGH-POLYMER LIQUID CRYSTAL

• Main Author: AKASHI KAZUSHIROU
• Format: Patent
• Language: English
• Published: 02.07.1996
• Edition: 6
• Subjects: 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; FREQUENCY-CHANGING; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PURPOSE: To obtain an information recording medium having excellent repeatability of recording/erasing, display contrast and preservable stability by using high-polymer liquid crystals having a specific mol.wt. distribution for the recording layer of this information recording medium. CONSTITUTION: This information recording medium is obtd. by incorporating the high-polymer liquid crystals of the mol.wt. distribution of Mw/Mn<=4.0 into the recording layer of the information recording medium formed by providing the surface of a base material with the recording layer. The high-polymer liquid crystals may be a layer formed by crosslinking the liquid crystals after molding. The high-polymer liquid crystals are preferably a copolymer of a mesogen monomer and a non-mesogen monomer.