公开(公告)号：US20170343830A1

公开(公告)日：2017-11-30

申请号：US15678498

申请日：2017-08-16

Applicant: FUJIFILM Corporation

Inventor： Michio NAGAI ,  Yoji ITO ,  Akira YAMAMOTO ,  Yukito SAITOH ,  Yujiro YANAI ,  Daisuke KASHIWAGI ,  Nobuhiko ICHIHARA

IPC: G02B27/28

CPC classification number: G02B27/288 ,  G02B5/0215 ,  G02B5/0236 ,  G02B5/0284 ,  G02B5/201 ,  G02B5/3016 ,  G02B27/26 ,  G03B21/567 ,  G03B21/60 ,  G03B21/62

Abstract: A transparent screen includes a substrate capable of transmitting light; and a plurality of dots formed on a surface of the substrate, each of the dots having wavelength-selective reflectivity and being formed of a liquid crystal material having a cholesteric structure, in which the cholesteric structure gives a striped pattern of bright parts and dark parts in a cross-sectional view of the dot observed by scanning electron microscope, the dot includes a portion having a height that increases continuously to the maximum height in a direction extending from the edge toward the center of the dot, and in the portion, the angle formed by the normal line to a line that is formed by a first one of the dark parts as counted from the surface of the dot on the opposite side of the substrate and the surface of the dot is in the range of 70° to 90°.

公开(公告)号：US20170336555A1

公开(公告)日：2017-11-23

申请号：US15672727

申请日：2017-08-09

Applicant: FUJIFILM Corporation

Inventor： Yujiro YANAI ,  Yukito SAITOH ,  Akira YAMAMOTO ,  Nobuhiko ICHIHARA ,  Daisuke KASHIWAGI ,  Michio NAGAI

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0055 ,  G02B5/02 ,  G02B5/3016 ,  G02B6/0045 ,  G02F1/133528 ,  G02F1/1336 ,  G02F1/13718 ,  G02F2203/02

Abstract: Provided is an optical member having a high brightness, a low haze, and a small color change, an optical element, a liquid crystal display device, and a near-to-eye optical member. The optical member includes a plurality of cholesteric liquid crystal dots that are provided on a substrate, in which a shape of each of the dots is a hemispherical or elliptical hemispherical shape in which the substrate side is planar, a conical or elliptical conical shape in which the substrate side is set as the bottom, or a shape in which a plurality of shapes selected from the shapes are laminated, the cholesteric liquid crystal dot has a reflection center wavelength with respect to visible light, the cholesteric structure of the dot 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, and in the portion, an angle between a normal line perpendicular to a line, which is formed using a first dark portion from a surface of the dot opposite to the substrate, and the surface of the dot is in a range of 70° to 90°.

公开(公告)号：US20170269273A1

公开(公告)日：2017-09-21

申请号：US15616419

申请日：2017-06-07

Applicant: FUJIFILM Corporation

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

IPC: G02B5/30 ,  G06F3/0354 ,  G06F3/042

CPC classification number: G02B5/3016 ,  G06F3/0321 ,  G06F3/03545 ,  G06F3/0421

Abstract: Provided is an optical member including: a substrate; and a dot that is in contact with a surface of the substrate, in which the dot is formed of a liquid crystal material having a cholesteric structure, and the dot exhibits wavelength selective reflecting properties having two or more reflection peaks. By using the optical member according to the present invention, an image display device in which erroneous detection of data input is reduced can be provided.

公开(公告)号：US20160170111A1

公开(公告)日：2016-06-16

申请号：US14963928

申请日：2015-12-09

Applicant: FUJIFILM Corporation

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

IPC: G02B5/30

CPC classification number: G02B5/3016 ,  G06F3/0317 ,  G06F3/03542 ,  G06F3/0421

Abstract: The present invention provides an optical member having a substrate and a dot in contact with a surface of the substrate, wherein the dot is made of a liquid crystal material having a cholesteric structure; the dot has wavelength selective reflection property; and the dot reflects both the right circularly polarized light and the left circularly polarized light at a wavelength at which the dot exhibits the wavelength selective reflection property. The present invention also provides an image display device having the above optical member. The optical member of the present invention achieves a large intensity of reflected light from the dot in the optical member, and the image display device of the present invention has favorable data input sensitivity as an image display device capable of receiving data input.

Abstract translation: 本发明提供一种光学部件，其具有基板和与基板的表面接触的点，其中该点由具有胆甾醇结构的液晶材料制成; 该点具有波长选择反射特性; 并且该点反射出具有波长选择反射特性的波长处的右圆偏振光和左圆偏振光。 本发明还提供一种具有上述光学部件的图像显示装置。 本发明的光学构件实现了来自光学构件中的点的大的反射光强度，并且本发明的图像显示装置作为能够接收数据输入的图像显示装置具有良好的数据输入灵敏度。