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    ELECTRONIC DEVICE AND METHOD FOR DISPLAYING AUGMENTED REALITY
    1.
    发明申请
    ELECTRONIC DEVICE AND METHOD FOR DISPLAYING AUGMENTED REALITY 有权

    公开(公告)号：US20210286184A1

    公开(公告)日：2021-09-16

    申请号：US17336707

    申请日：2021-06-02

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Myongjo CHOI ,  Kyusub KWAK ,  Jeongeun YUN ,  Kyookeun LEE ,  Wonjun LEE ,  Jongchul CHOI

    IPC: G02B27/01 ,  G06K9/00 ,  G02B3/00

    Abstract: An electronic device for displaying augmented reality (AR) includes: an optical engine configured to output light of virtual image; a waveguide from which the light of the virtual image is output and through which light of a real scene is transmitted; an optical shutter configured to transmit or block the light of the real scene; a focus tunable lens configured to adjust a focal length for the light of the virtual image output from the waveguide; and one or more processors configured to, during a first period, control the optical shutter to block at least part of a first light of the real scene, and control the focus tunable lens to have a first focal length, and during a second period, control the optical shutter to transmit a second light of the real scene, and control the focus tunable lens to have a second focal length different from the first focal length.

    NEAR INFRARED PHOSPHOR AND LIGHT EMITTING DEVICE
    2.
    发明申请
    NEAR INFRARED PHOSPHOR AND LIGHT EMITTING DEVICE 有权

    公开(公告)号：US20240405165A1

    公开(公告)日：2024-12-05

    申请号：US18662576

    申请日：2024-05-13

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jeongeun YUN ,  Seongmin KIM ,  Sungwoo CHOI ,  Kyounghoon KIM ,  Minhee NOH ,  Jeongrok OH

    IPC: H01L33/50 ,  H01L25/075

    Abstract: A light emitting device includes a light emitting diode chip configured to emit first light having a peak wavelength of 400 nm to 470 nm; a wavelength conversion material converting a portion of the first light into second light having a peak wavelength of 620 nm to 670 nm; and a near-infrared phosphor configured to convert a portion of the first light into third light having a peak wavelength of 740 nm to 820 nm, wherein the near-infrared phosphor includes a phosphor represented by composition formula CaAl(12-x-y)GayO19:xCr3+, where x satisfies 0.1≤x≤0.3 and y satisfies 1 or more, and an emission spectrum of the third light alone has a ratio of an intensity of 690 nm relative to an intensity of 780 nm of 0.3 or less.

    WHITE LIGHT EMITTING DEVICE AND LIGHTING APPARATUS
    4.
    发明申请
    WHITE LIGHT EMITTING DEVICE AND LIGHTING APPARATUS 有权

    公开(公告)号：US20220209075A1

    公开(公告)日：2022-06-30

    申请号：US17185431

    申请日：2021-02-25

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Seongmin KIM ,  Chohui KIM ,  Jeongeun YUN ,  Seulgee LEE ,  Sungwoo CHOI ,  Jeongrok OH ,  Chulsoo YOON

    IPC: H01L33/50

    Abstract: A white light emitting device is provided. The white light emitting device includes a blue light emitting diode configured to emit blue light having a peak wavelength in a first range of 440 nm to 455 nm; a first wavelength conversion material, based on being excited by the blue light, emits first light having a peak wavelength in a second range of 535 nm to 550 nm and a full width at half maximum (FWHM) of 60 nm or less; and a second wavelength conversion material, based on being excited by the blue light, emits second light having a peak wavelength in a third range of 620 nm to 660 nm, wherein a melanopic photopic ratio of white light emitted from the white light emitting device is 0.65 or less, and a color rendering index (CRI) of the white light is 80 or more.

    LIGHT EMITTING DEVICE FOR DISPLAY AND BACKLIGHT UNIT INCLUDING THE SAME
    5.
    发明申请
    LIGHT EMITTING DEVICE FOR DISPLAY AND BACKLIGHT UNIT INCLUDING THE SAME 有权

    公开(公告)号：US20250006872A1

    公开(公告)日：2025-01-02

    申请号：US18885155

    申请日：2024-09-13

    Applicant: SAMSUNG ELECTRONICS Co., LTD.

    Inventor： Seongmin KIM ,  Jeongeun YUN ,  Jeongrok OH ,  Sungwoo CHOI ,  Chulsoo YOON

    IPC: H01L33/50 ,  F21V8/00 ,  H01L25/075

    Abstract: A light emitting device includes a first light emitter including a first light emitting chip emitting first blue light and at least one among a first phosphor and a second phosphor, the first light emitter being configured to emit second blue light, and a second light emitter including a second light emitting chip emitting third blue light and at least one among a third phosphor and a fourth phosphor, the second light emitter being configured to emit fourth blue light, wherein a ratio of an intensity of a peak wavelength of the fourth blue light to an intensity of a peak wavelength of the second blue light is greater than or equal to 0.6.

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