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    Transparent screen and image display system
    1.
    发明授权
    Transparent screen and image display system 有权

    公开(公告)号：US10732497B2

    公开(公告)日：2020-08-04

    申请号：US16307276

    申请日：2017-04-13

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Hiroshi Yamaguchi ,  Daizaburo Matsuki

    IPC: G03B21/62 ,  G03B21/60 ,  G03B21/602 ,  G02B5/02 ,  G03B21/625

    Abstract: A transparent screen is a transparent screen for diffusing image light projected from a projector and displaying an image by transmitting part of incident light rectilinearly and diffusing the other part of the incident light. The transparent screen includes a first base material that is transparent, a diffusion member, a second base material that is transparent, and a plurality of light absorption materials. The diffusion member is disposed within a first base material and diffuses the image light. The second base material is disposed on an opposite side of the first base material from the projector. The plurality of light absorption materials is disposed within the second base material and is arranged parallel to each other along an arrangement direction parallel to a principal plane of the second base material.

    Surface light source and liquid crystal display device
    2.
    发明授权
    Surface light source and liquid crystal display device 有权
    表面光源和液晶显示装置

    公开(公告)号：US08994896B2

    公开(公告)日：2015-03-31

    申请号：US13728561

    申请日：2012-12-27

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Tomoko Iiyama ,  Daizaburo Matsuki

    IPC: G02F1/1335 ,  G09F13/04 ,  G02B19/00 ,  H01L25/075 ,  H01L33/58

    CPC classification number: G09F13/04 ,  G02B19/0009 ,  G02B19/0061 ,  G02B2207/113 ,  G02F1/133603 ,  G02F1/133605 ,  G02F1/133606 ,  G02F2001/133607 ,  H01L25/0753 ,  H01L33/58 ,  H01L2924/0002 ,  H01L2924/00

    Abstract: A light emitting device including a lens in which light radiated from a light source with a wide angle can effectively be oriented while a directional characteristic of the light source is expanded is provided, and a surface light source including the light emitting devices and a liquid crystal display device are provided. The surface light source is configured such that the plural light emitting devices are disposed in a central portion thereof. The light emitting device radiates the light on an optical axis A and around the optical axis A. The light emitting device includes a light source and a lens that radially expands the light from the light source. The lens includes a reflection unit at a bottom surface of the lens partially.

    Abstract translation: 提供了一种发光装置，其具有透镜，其中从光源发出的广角的光可以有效地定向，同时光源的方向特性被扩大，并且包括发光装置和液晶的面光源 提供显示设备。 表面光源被配置为使得多个发光器件设置在其中心部分。 发光装置在光轴A上并围绕​​光轴A照射光。发光装置包括光源和使来自光源的光径向膨胀的透镜。 透镜在透镜的底面部分包括反射单元。

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