DISPLAY DEVICE USING SEMICONDUCTOR LIGHT EMITTING DIODE

    公开(公告)号:US20220216382A1

    公开(公告)日:2022-07-07

    申请号:US17607613

    申请日:2019-05-07

    Abstract: Discussed is a display device using a semiconductor light emitting diode disposed on a substrate, a planarization layer stacked on the substrate while defining a hole that is a region in which the semiconductor light emitting diode is disposed, a light-transmitting layer filling the hole, and a reflective layer formed along at least one surface of the substrate and the planarization layer defining an inner surface of the hole, wherein the hole is formed so that a width thereof expands as a distance from the substrate increases.

    METHOD AND APPARATUS FOR TRANSMITTING PPDU IN WLAN SYSTEM

    公开(公告)号:US20210168868A1

    公开(公告)日:2021-06-03

    申请号:US17267805

    申请日:2019-07-23

    Abstract: A method and an apparatus for transmitting a PPDU in a WLAN system are proposed. Particularly, a transmission device receives configuration information relating to a multi-band. The transmission device performs channel sensing with respect to the multi-band. The transmission device transmits PPDUs to a reception device via the multi-band on the basis of the result of the channel sensing. In the multi-hand, a first band and a second band are combined. The first band includes a first primary channel. The second band includes a second primary channel. The channel sensing is performed on the basis of a first CW value which is set in common for the first and second bands. If transmission of some PPDUs allocated to the second band of the PPDUs fails, the first CW value is increased.

    METHOD FOR TRANSMITTING AND RECEIVING SIGNAL IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20210067218A1

    公开(公告)日:2021-03-04

    申请号:US16960011

    申请日:2018-12-28

    Abstract: Proposed are a method and an apparatus for transmitting a signal by performing MIMO beamforming in a wireless LAN system. Specifically, a first STA performs MIMO beamforming during a second STA and TDD-based SP. The first STA transmits a signal to the second STA on the basis of a result of the MIMO beamforming. The SP includes a plurality of TDD slots. The MIMO beamforming includes a first sub-step and a second sub-step. In the first sub-step, after receiving a first MIMO beamforming setup frame from the second STA, the first STA transmits a second MIMO beamforming setup frame in the first allocated TDD slot among the TDD slots allocated to the first STA. In the second sub-step, after receiving a first MIMO beamforming feedback frame from the second STA, the first STA transmits a second MIMO beamforming feedback frame in a first allocated TDD slot among the TDD slots allocated to the first STA.

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