Invention Grant
- Patent Title: Display device
- Patent Title (中): 显示设备
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Application No.: US14891948Application Date: 2014-05-16
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Publication No.: US09563114B2Publication Date: 2017-02-07
- Inventor: Naru Usukura , Hiromi Katoh , Takafumi Shimatani
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Osaka
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Osaka
- Agency: Chen Yoshimura LLP
- Priority: JP2013-106418 20130520
- International Application: PCT/JP2014/063094 WO 20140516
- International Announcement: WO2014/188978 WO 20141127
- Main IPC: G03B21/604
- IPC: G03B21/604 ; G03B27/42 ; G03B5/02 ; G03B21/20 ; G03B21/10 ; G03B21/62 ; G03B21/602 ; G02B5/02 ; G02B27/42

Abstract:
A screen includes: a diffraction member and a scattering member. The diffraction member selectively diffracts image light and orients this light towards a viewer. In order for the image light to be scattered to a higher degree than ambient light that enters the scattering member on the side opposite of the viewer, the degree to which the scattering member scatters polarized light varies according to the polarization direction of the light. Thus, regardless of the positional relationship of the screen and a projector, which projects image light, it is possible to use a relatively simple industrial manufacturing process that can ensure the following to a satisfactory extent: brightness of the screen in the front direction, a wide viewing angle, and visual clarity through the screen.
Public/Granted literature
- US20160139497A1 DISPLAY DEVICE Public/Granted day:2016-05-19
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