Invention Grant
- Patent Title: Optical element, screen, and display device
- Patent Title (中): 光学元件,屏幕和显示设备
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Application No.: US13505567Application Date: 2010-12-08
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Publication No.: US08879143B2Publication Date: 2014-11-04
- Inventor: Satoru Okagaki , Eiji Yokoyama , Tomohiro Sasagawa , Jun Kondo , Muneharu Kuwata , Kuniko Kojima , Yuzo Nakano
- Applicant: Satoru Okagaki , Eiji Yokoyama , Tomohiro Sasagawa , Jun Kondo , Muneharu Kuwata , Kuniko Kojima , Yuzo Nakano
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-281693 20091211; JP2010-006951 20100115; JP2010-099825 20100423
- International Application: PCT/JP2010/007147 WO 20101208
- International Announcement: WO2011/070777 WO 20110616
- Main IPC: G02B26/00
- IPC: G02B26/00 ; G02F1/29 ; G09G3/34

Abstract:
A screen includes a light diffusion layer in which microcapsules, each having therein a light diffusion liquid that scatters light for displaying a video image, are planarly arranged. The light diffusion layer is fixed to a supporting sheet by a binder material. On a surface of the supporting sheet, a Fresnel lens is formed. A light diffusion plate is made up of the light diffusion layer and the supporting sheet. The screen is made up of the light diffusion plate and a light diffusion plate. Scattering distribution of a scattered wave of light that passes through the light diffusion layer temporally changes.
Public/Granted literature
- US20120224109A1 OPTICAL ELEMENT, SCREEN, AND DISPLAY DEVICE Public/Granted day:2012-09-06
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