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    Diffraction light guide plate and display device including the same
    2.
    发明授权
    Diffraction light guide plate and display device including the same 有权

    公开(公告)号：US11906773B2

    公开(公告)日：2024-02-20

    申请号：US16961755

    申请日：2019-08-21

    申请人： LG CHEM, LTD.

    发明人： Seong Min Park ,  Jeong Ho Park ,  Sang Choll Han ,  Bu Gon Shin

    IPC分类号： G02B27/01 ,  F21V8/00 ,  G02B5/18

    CPC分类号： G02B6/0023 ,  G02B5/1842 ,  G02B6/005

    摘要： The present disclosure provides a diffraction light guide plate including: a light guide unit; an input diffraction optical element configured to diffract light which is outputted from a light source and inputted to the input diffraction optical element, to guide the inputted light on the light guide unit; and two diffraction optical elements configured to receive the diffracted light from the input diffraction optical element and one-dimensionally expand the received light by diffraction, wherein each of the two diffraction optical elements receives the expanded light from the other of the diffraction optical elements and outputs the received light from the light guide unit by the diffraction, and there is no region where the two diffraction optical elements overlap each other on the light guide unit.

    Reactor for nanoparticle production
    5.
    发明授权
    Reactor for nanoparticle production 有权

    公开(公告)号：US11577209B2

    公开(公告)日：2023-02-14

    申请号：US16638647

    申请日：2018-09-05

    申请人： LG CHEM, LTD.

    发明人： Eun Jeong Kim ,  Jun Won Choi ,  Jin Mi Jung ,  Ye Hoon Im ,  Bu Gon Shin

    IPC分类号： B01J6/00 ,  B01J4/00 ,  B01J19/06 ,  B01J19/12 ,  B01J19/26 ,  C01B33/029 ,  B82Y40/00

    摘要： A reactor for nanoparticle production comprising a main chamber including a first nozzle to which raw material gas is supplied, a lens housing connected to the main chamber in a fluidly movable manner and including a second nozzle for supplying flushing gas to the lens housing, a lens mounted on the lens housing, a light source for irradiating a laser, which passes through the lens to reach the raw material gas in the main chamber, and a hood for discharging nanoparticles generated in the main chamber. A cross-sectional area of at least a part of the lens housing decreases along a direction facing the main chamber.

    OPTICAL FINGERPRINT RECOGNITION SYSTEM AND MOBILE DEVICE COMPRISING THE SAME
    8.
    发明申请
    OPTICAL FINGERPRINT RECOGNITION SYSTEM AND MOBILE DEVICE COMPRISING THE SAME 有权

    公开(公告)号：US20210124900A1

    公开(公告)日：2021-04-29

    申请号：US17257477

    申请日：2019-07-16

    申请人： LG CHEM, LTD.

    发明人： Jae Jin Kim ,  Dae Han Seo ,  Min Soo Song ,  Bu Gon Shin

    IPC分类号： G06K9/00 ,  G02B5/20

    摘要： The present application relates to an optical fingerprint recognition system and a mobile device comprising the same. The optical fingerprint recognition system is used without changing the original structure or configuration of the mobile device because it has a simple structure and a compact size. The optical fingerprint recognition system and the mobile device having excellent user identification or authentication capability through fingerprints are provided.