Invention Grant
- Patent Title: Transparent screen
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Application No.: US15678498Application Date: 2017-08-16
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Publication No.: US10295897B2Publication Date: 2019-05-21
- Inventor: Michio Nagai , Yoji Ito , Akira Yamamoto , Yukito Saitoh , Yujiro Yanai , Daisuke Kashiwagi , Nobuhiko Ichihara
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Edwards Neils, LLC
- Agent Jean C. Edwards, Esq.
- Priority: JP2015-032032 20150220; JP2015-237889 20151204
- Main IPC: G03B21/56
- IPC: G03B21/56 ; G02B5/30 ; G03B21/60 ; G02B27/28 ; G02B5/02 ; G02B5/20 ; G02B27/26 ; 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°.
Public/Granted literature
- US20170343830A1 TRANSPARENT SCREEN Public/Granted day:2017-11-30
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