Invention Grant
- Patent Title: Display device and display control system
- Patent Title (中): 显示设备和显示控制系统
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Application No.: US14540984Application Date: 2014-11-13
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Publication No.: US09304627B2Publication Date: 2016-04-05
- Inventor: Hiroshi Yamaguchi
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2012-166787 20120727
- Main IPC: G06F3/042
- IPC: G06F3/042 ; G06F3/0354 ; F21V8/00 ; G06F3/03

Abstract:
The display device includes: a display panel; and a surface light source section. A transmittance of light transmitted from a front surface of a prism sheet of the surface light source section is lowest when an incident angle thereof is a determined angle. An angle distribution conversion sheet of the surface light source section has a conversion region that causes light incident on a front surface thereof at the determined incident angle to be emitted from a back surface thereof at an emission angle of not larger than 40° or not smaller than 60°, in a cross-sectional view in a direction perpendicular to an extension direction of prisms. When light is applied to the front surface of the angle distribution conversion sheet at the determined incident angle and in the direction in a front view, 20% or more of the light passes through the conversion region.
Public/Granted literature
- US20150070328A1 DISPLAY DEVICE AND DISPLAY CONTROL SYSTEM Public/Granted day:2015-03-12
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