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    Meta-optical device and electronic apparatus including the same
    1.
    发明授权
    Meta-optical device and electronic apparatus including the same 有权

    公开(公告)号：US12066696B2

    公开(公告)日：2024-08-20

    申请号：US17400840

    申请日：2021-08-12

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Hyeonsoo Park ,  Hyunsung Park ,  Seunghoon Han

    IPC分类号： G02F1/01 ,  G02B1/00 ,  G02F1/00

    CPC分类号： G02F1/0121 ,  G02B1/002 ,  G02F1/0018

    摘要： Provided is a meta-optical device exhibiting a target phase delay profile with respect to incident light of a predetermined wavelength band, the meta-optical device including: a first layer including a plurality of first nanostructures and a first surrounding material surrounding the plurality of first nanostructures, and having a first phase delay profile of a first tendency that is substantially equal to a tendency of the target phase delay profile; a second layer including a plurality of second nanostructures and a second surrounding material surrounding the plurality of second nanostructures, and having a second phase delay profile of a second tendency that is substantially opposite to the tendency of the target phase delay profile; and a third layer including a plurality of third nanostructures and a third surrounding material surrounding the plurality of third nanostructures, wherein the third layer is different from the second layer in terms of at least one of a material and an arrangement rule. The meta-optical device is capable of minimizing a primary dispersion and higher-order dispersions and thus may exhibit constant diffraction efficiency with respect to light of a wide wavelength band.

    DISPLAY DEVICE
    6.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20230205415A1

    公开(公告)日：2023-06-29

    申请号：US18065613

    申请日：2022-12-13

    申请人： LG Display Co., Ltd.

    发明人： Junho YEO ,  YongMin HA ,  Hanwook HWANG ,  ChangHeon KANG

    IPC分类号： G06F3/0488 ,  G06F1/16 ,  G02F1/00

    CPC分类号： G06F3/0488 ,  G06F1/1652 ,  G02F1/0018 ,  G06F1/1656

    摘要： Embodiments of the disclosure relate to a display device. Specifically, there is provided a display device with display quality enhanced by comprising a substrate, a display area where one or more subpixels are disposed, each of the one or more subpixels including a light emitting element positioned on the substrate and at least one transistor for driving the light emitting element, an open area obtained by removing at least a portion of the substrate in an area surrounded by the display area, and a planarization layer positioned to overlap the display area and the open area and positioned on the light emitting element.

    Systems and methods for implementing electrically tunable metasurfaces
    10.
    发明授权
    Systems and methods for implementing electrically tunable metasurfaces 有权

    公开(公告)号：US09958707B2

    公开(公告)日：2018-05-01

    申请号：US15124017

    申请日：2015-03-06

    申请人： California Institute of Technology

    发明人： Harry A. Atwater

    IPC分类号： H01Q15/02 ,  G02F1/00 ,  G02F1/01

    CPC分类号： G02F1/0018 ,  B82Y20/00 ,  G02B1/002 ,  G02B26/02 ,  G02F1/0121 ,  G02F2202/30

    摘要： Systems and methods in accordance with embodiments of the invention implement electrically tunable metasurfaces. In one embodiment, an electrically tunable metasurface reflectarray includes: a mirrored surface; a conductive layer; a dielectric layer; where the conductive layer and the dielectric layer are in direct contact, and thereby define a conductor-dielectric interface; a plurality of subwavelength antenna elements; and an electrical power source configured to establish a potential difference between at least one subwavelength antenna element and the mirrored surface; where a potential difference between a subwavelength antenna element and the mirrored surface applies an electric field to a corresponding region of the electrically tunable metasurface reflectarray; where any applied electric fields in conjunction with the geometry and the material composition of each of the subwavelength antenna elements, the conductive layer, and the dielectric layer, enable the electrically tunable metasurface reflectarray to measurably augment the propagation characteristics of incident electromagnetic waves.