公开(公告)号：US20170227692A1

公开(公告)日：2017-08-10

申请号：US15496622

申请日：2017-04-25

Applicant: FUJIFILM Corporation

Inventor： Michio NAGAI ,  Yoji ITO ,  Daisuke KASHIWAGI ,  Akira YAMAMOTO ,  Nobuhiko ICHIHARA ,  Hideyuki NAKAMURA

IPC: G02B5/26 ,  G06F3/042

CPC classification number: G02B5/26 ,  G06F3/0321 ,  G06F3/03545 ,  G06F3/0421

Abstract: The optical member of the present invention includes: a substrate; and a dot that is in contact with a surface of the substrate, in which the dot has wavelength selective reflecting properties, the dot is formed of a liquid crystal material having a cholesteric structure, the cholesteric structure has a stripe pattern including bright portions and dark portions in a cross-sectional view of the dot when observed with a scanning electron microscope, the dot includes a portion having a height which continuously increases to a maximum height in a direction moving from an end portion of the dot to the center of the dot, in the portion, an angle between a normal line perpendicular to a line, which is firmed using a first dark portion from a surface of the dot, and the surface is in a range of 70° to 90°, and the liquid crystal material includes a surfactant.