Transfer apparatus and method of manufacturing micro LED display using the same

    公开(公告)号:US11437541B2

    公开(公告)日:2022-09-06

    申请号:US16870242

    申请日:2020-05-08

    摘要: A method of manufacturing a micro light emitting diode (LED) display and a transfer apparatus are provided. The method of manufacturing a micro LED display includes: identifying a repairing micro LED, from among a plurality of second micro LEDs, on a second substrate based on a first position of a defective micro LED, from among a plurality of first micro LEDs, on a first substrate; removing the defective micro LED from the first substrate; matching the first position on the first substrate from which the defective micro LED has been removed to a second position of the repairing micro LED on the second substrate; and transferring the repairing micro LED from the second position on the second substrate to the first position on the first substrate from which the defective micro LED has been removed, by using a laser transfer method.

    MICRO LED TRANSFER DEVICE AND MICRO LED TRANSFERRING METHOD USING THE SAME

    公开(公告)号:US20220173270A1

    公开(公告)日:2022-06-02

    申请号:US17674520

    申请日:2022-02-17

    IPC分类号: H01L33/00 H01L33/62

    摘要: A micro light emitting diode (LED) transfer device includes a transfer part configured to transfer a relay substrate having at least one micro LED; a mask having openings corresponding to a position of the at least one micro LED; a first laser configured to irradiate a first laser light having a first wavelength to the mask; a second laser configured to irradiate a second laser light having a second wavelength different from the first wavelength to the mask; and a processor configured to: control the at least one micro LED to contact a coupling layer of a target substrate, and based on the coupling layer contacting the at least one micro LED, control the first laser to irradiate the first laser light toward the at least one micro LED, and subsequently control the second laser to irradiate the second laser light toward the at least one micro LED.

    Light emitting diode transfer system and control method thereof

    公开(公告)号:US11715811B2

    公开(公告)日:2023-08-01

    申请号:US17133171

    申请日:2020-12-23

    IPC分类号: H01L33/00 H01L25/075

    摘要: A light emitting diode (LED) transfer system includes an alignment apparatus configured to align a plurality of target substrates; a handling robot configured to transport the plurality of target substrates; a transfer stage configured to hold the plurality of target substrates and move the plurality of target substrates; a substrate stage configured to move a relay substrate having a plurality of LEDs with respect to the transfer stage while the plurality of LEDs are facing the transfer stage; a laser configured to emit a laser beam toward the plurality of LEDs of the relay substrate so that the plurality of LEDs are transferred from the relay substrate to the plurality of target substrates; and a processor configured to control the alignment apparatus, the handling robot, the transfer stage, the substrate stage, and the laser to transfer the plurality of LEDs of the relay substrate to the plurality of target substrates.

    Device for testing antenna module comprising plurality of antenna elements

    公开(公告)号:US11848715B2

    公开(公告)日:2023-12-19

    申请号:US17415385

    申请日:2019-12-26

    摘要: The present invention relates to a communication technique for converging IoT technology with a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure may be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, health care, digital education, retail business, a security and safety-related service, etc.) on the basis of 5G communication technology and IoT-related technology. The present invention provides a device for testing an antenna module, the device comprising: a seating unit which has seated thereon a first antenna module comprising a plurality of antenna elements; a second antenna module which comprises a plurality of antenna elements and is disposed so as to face the seating unit so as to be capable of emitting a radio wave toward the first antenna module; and a control unit which is electrically connected to the second antenna module and tests the performance of the first antenna module by controlling the second antenna module by grouping each antenna element of the second antenna module into at least one antenna element group.