Hologram display device
    1.
    发明授权

    公开(公告)号:US11846814B2

    公开(公告)日:2023-12-19

    申请号:US17829523

    申请日:2022-06-01

    CPC classification number: G02B6/4204 G02B6/0023 G02F1/13342

    Abstract: A hologram display device includes a light source unit, a light guide plate, a spatial light modulator, a sensing unit, and a light source driving unit. The light source unit includes a plurality of light sources and emits light when at least one of the plurality of light sources is turned on. The light guide plate converts the light emitted thereto from the light source unit to a planar light beam. The spatial light modulator spatially modulates the planar light beam to produce a hologram image. The sensing unit senses a position of a user watching the hologram image, and the light source driving unit turns on the at least one of the plurality of light sources, based on information on the position of the user obtained by the sensing unit.

    Hologram display device
    6.
    发明授权

    公开(公告)号:US11372174B2

    公开(公告)日:2022-06-28

    申请号:US16987630

    申请日:2020-08-07

    Abstract: A hologram display device includes a light source unit, a light guide plate, a spatial light modulator, a sensing unit, and a light source driving unit. The light source unit includes a plurality of light sources and emits light when at least one of the plurality of light sources is turned on. The light guide plate converts the light emitted thereto from the light source unit to a planar light beam. The spatial light modulator spatially modulates the planar light beam to produce a hologram image. The sensing unit senses a position of a user watching the hologram image, and the light source driving unit turns on the at least one of the plurality of light sources, based on information on the position of the user obtained by the sensing unit.

    Display device
    7.
    发明授权

    公开(公告)号:US11410579B2

    公开(公告)日:2022-08-09

    申请号:US16924634

    申请日:2020-07-09

    Inventor: Sang-Ho Kim

    Abstract: A display device includes a base substrate including a first folding portion, a first portion, and a second portion, a display element layer including first display elements, which are disposed on the first portion to emit a first light, and second display elements, which are disposed on the second portion to emit a second light, and a light control layer including a first region, which is disposed on the second portion and causes a first diffraction of the second light emitted from the second display elements, a second region, which guides the second light provided from the first region, and a third region, which is spaced apart from the first region with the second region interposed therebetween and emits the second light to an outside through a second diffraction of the second light.

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