Information recording medium and information recording and reproducing

Abstract

A first information recording medium (shown in Fig. 1(a)) has an electrode layer (13), and an information recording layer (11) provided on the electrode layer by coating a mixed solution of a liquid crystal, a multifunctional ultraviolet curing resin material whose parameter, which is expressed by the average molecular weight divided by the average functional group, is not larger than 160, and a fluorocarbon surface-active agent, and then curing the coating by irradiation with ultraviolet rays, thereby forming an ultraviolet curing resin skin layer having no liquid crystal phase on the outer surface of the information recording layer. A second information recording medium (shown in Fig. 1(b)) further has a patterned electrode layer (13') provided on the information recording layer (11) of the first information recording medium. A third information recording medium (shown in FIG. 4(a)) has an electrode layer (13'), a photoconductive layer (14), an information recording layer (11) including a liquid crystal phase and a resin phase, a resin layer (12), and an electrode layer (13), which are successively provided one on top of another, wherein at least one of the electrode layers is transparent. A fourth information recording medium (shown in FIG. 4(b)) further has an insulating layer (16) provided between the photoconductive layer (14) and the information recording layer (11) in the third information recording medium.