公开(公告)号：US20230128165A1

公开(公告)日：2023-04-27

申请号：US17970223

申请日：2022-10-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungwook Hwang ,  Junsik Hwang ,  Dongkyun Kim ,  Dongho Kim ,  Hyunjoon Kim ,  Joonyong Park ,  Seogwoo Hong

IPC: H01L25/075 ,  H01L33/00

Abstract: Provided is a micro semiconductor chip transfer substrate including a base substrate, guide rails provided on the base substrate extending in a direction parallel to each other and spaced apart from each other, and a plurality of grooves provided in the base substrate between the guide rails and configured to accommodate micro semiconductor chips.

公开(公告)号：US11610872B2

公开(公告)日：2023-03-21

申请号：US17315596

申请日：2021-05-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungwook Hwang ,  Junsik Hwang ,  Hyunjoon Kim ,  Joonyong Park ,  Seogwoo Hong

IPC: H01L25/13 ,  H01L23/00

Abstract: Provided is a method of manufacturing a micro light emitting device array. The method includes forming a display transfer structure including a transfer substrate and a plurality of micro light emitting devices, where the transfer substrate includes at least two first alignment marks; preparing a driving circuit board, the driving circuit board including a plurality of driving circuits and at least two second alignment marks, arranging the display transfer structure and the driving circuit board to face each other so that the at least two first alignment marks and the at least two second alignment marks face one another and bonding the plurality of micro light emitting devices of the display transfer structure to the plurality of driving circuits.

公开(公告)号：US20230064207A1

公开(公告)日：2023-03-02

申请号：US17982347

申请日：2022-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungwook HWANG ,  Junsik Hwang ,  Dongho Kim ,  Hyunjoon Kim ,  Joonyong Park ,  Seogwoo Hong

IPC: H01L25/16

Abstract: Provided is a method of fabricating a hybrid element substrate, the method including forming a plurality of first elements on a first substrate which is a silicon substrate or a silicon-on-insulator (SOI) substrate; forming a plurality of second elements on a second substrate which has a material different from a material of the first substrate; separating a plurality of second elements from the second substrate; primarily transferring the plurality of second elements onto a transfer substrate comprising a plurality of grooves by a fluidic self-assembly method such that the plurality of second elements are arranged in the plurality of grooves of the transfer substrate, respectively; and secondarily transferring, onto the first substrate, the plurality of second elements transferred onto the transfer substrate such that the plurality of second elements are next to the first elements on the first substrate and spaced apart from each other, or overlap upper portions of the first elements, respectively.

公开(公告)号：US20220344542A1

公开(公告)日：2022-10-27

申请号：US17591772

申请日：2022-02-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyunjoon KIM ,  Seogwoo Hong ,  Kyungwook Hwang ,  Dongho Kim ,  Joonyong Park ,  Junsik Hwang

IPC: H01L33/38 ,  H01L33/10 ,  H01L33/62 ,  H01L33/20 ,  H01L25/075

Abstract: A light-emitting device may include a light-emitting cell emitting first-color light and second-color light, an insulating layer having a flat upper surface while covering the light-emitting cell, a first trench exposing a first semiconductor layer, a second trench exposing a second semiconductor layer, a first electrode in contact with the first semiconductor layer, a second electrode in contact with the second semiconductor layer, and a third electrode in contact with a third semiconductor layer.

公开(公告)号：US20220246448A1

公开(公告)日：2022-08-04

申请号：US17469390

申请日：2021-09-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joonyong Park ,  Dongho Kim ,  Hyunjoon Kim ,  Seogwoo Hong ,  Kyungwook Hwang ,  Junsik Hwang

IPC: H01L21/67 ,  H01L21/673 ,  H01L33/00

Abstract: Provided is a dispenser for a solution including a reservoir configured to hold a suspension of micro light-emitting diodes (LEDs) suspended in a solvent; a stirrer configured to stir the suspension in the reservoir; a discharge path including a first valve configured to control outflow of the suspension from the reservoir; a filling path including a second valve configured to control inflow of the suspension into the reservoir; a hydraulic path including a third valve configured to control a pressure inside the reservoir; and a washing path connected to the first valve and configured to input a washing fluid for washing the discharge path into the discharge path, wherein the first valve includes a multi-way valve configured to selectively connect the discharge path to one of the reservoir and the washing path.

公开(公告)号：US20220190192A1

公开(公告)日：2022-06-16

申请号：US17477875

申请日：2021-09-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joonyong PARK ,  Seogwoo Hong ,  Kyungwook Hwang ,  Hyunjoon Kim ,  Junsik Hwang

IPC: H01L33/00 ,  H01L33/62 ,  H01L27/15

Abstract: Provided is a method of manufacturing a display, the method including a first operation of transferring a plurality of micro light emitting diodes (LEDs) to a plurality of wells of an interposer through a fluidic self assembly (FSA) process, a second operation of aligning a driving substrate on the interposer, a third operation of injecting a penetrating solvent between the interposer and the driving substrate, such that the penetrating solvent penetrates between the plurality of micro LEDs and the plurality of wells, and a fourth operation of transferring the plurality of micro LEDs to the driving substrate by radiating light to the interposer to vaporize the penetrating solvent.

公开(公告)号：US10228506B2

公开(公告)日：2019-03-12

申请号：US15171523

申请日：2016-06-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaeseung Chung ,  Sunghoon Lee ,  Jihyun Bae ,  Joonyong Park ,  Hoon Song ,  Hongseok Lee ,  Dongouk Kim ,  Hyunjoon Kim ,  Bongsu Shin ,  Dongsik Shim ,  Seogwoo Hong

IPC: F21V8/00 ,  G02B5/18 ,  G02B27/22

Abstract: A directional backlight and a 3D image display apparatus including the directional backlight are provided. The directional backlight includes a light guide plate guiding light emitted from a light source; a diffractive device configured to adjust the direction of light exiting the light guide plate; and an aperture adjusting layer including a plurality of apertures. The aperture adjusting layer may adjust the optical output efficiency of the diffractive device.

公开(公告)号：US10180530B2

公开(公告)日：2019-01-15

申请号：US15236604

申请日：2016-08-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bongsu Shin ,  Joonyong Park ,  Hyunjoon Kim ,  Dongouk Kim ,  Jihyun Bae ,  Dongsik Shim ,  Sunghoon Lee ,  Jaeseung Chung ,  Seogwoo Hong

IPC: G02B27/22 ,  F21V8/00 ,  G02F1/1335

Abstract: A directional backlight unit and a three-dimensional image display apparatus including the directional backlight unit are provided. The directional backlight unit includes a light source, a light guide plate guiding light emitted from the light source, and a diffraction device including a plurality of sections. Each of the sections includes a grating pattern set configured to adjust the direction of light incident from the light guide plate.

公开(公告)号：US09643212B2

公开(公告)日：2017-05-09

申请号：US14665555

申请日：2015-03-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongsik Shim ,  Seogwoo Hong ,  Seokwhan Chung

IPC: B06B1/02

CPC classification number: B06B1/0292 ,  H01L2224/48091 ,  H01L2924/00014

Abstract: Provided are capacitive micromachined ultrasonic transducer (CMUT) modules. A CMUT module includes a CMUT chip which includes a plurality of first electrode pads on a first surface thereof; a flexible printed circuit (FPC) which is disposed on the first surface of the CMUT chip, the FPC including a plurality of first holes which are configured to expose the plurality of first electrode pads; a plurality of second electrode pads formed on the FPC so as to correspond to the plurality of first electrode pads; and a plurality of wires which connect each respective one of the plurality of first electrode pads to the corresponding one of the plurality of second electrode pads.

公开(公告)号：US12249673B2

公开(公告)日：2025-03-11

申请号：US17519754

申请日：2021-11-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seogwoo Hong ,  Hyunjoon Kim ,  Joonyong Park ,  Kyungwook Hwang ,  Junsik Hwang

IPC: H01L25/075 ,  H01L25/16 ,  H01L27/15 ,  H01L33/06 ,  H01L33/38

Abstract: Provided is a light-emitting device including a body including a first semiconductor layer, an active layer, and a second semiconductor layer, a first electrode and a second electrode provided on a first surface of the body, the first electrode and the second electrode being in contact with the first semiconductor layer and the second semiconductor layer, respectively, and a third electrode and a fourth electrode provided on a second surface of the body, the third electrode and the fourth electrode being in contact with the first semiconductor layer and the second semiconductor layer, respectively.