Lg Electronics Inc.

Lg Energy Solution, Ltd.

Korea Advanced Institute of Science and Technology

Seoul National University

Korea Basic Science Institute

Samsung Electronics Co., Ltd.

Duksan Mecasys Inc.

Yonsei University

Ewha University-Industry Collaboration Foundation

Konkuk University Industrial Cooperation Corp

Soohyun Kim

Kihyun Kim

Doo Kyung Yang

Kwonnam Sohn

Wonseok Choi

Sungmin Park

Hwang Kim

Indo Chung

Jeonghyo Kwon

Youngjun Jeon

Byungho Yoon

Hyunho Lee

Kyung-Soo Kim

Jaewon Chang

Sungil Park

Junho Chung

Hyori Kim

Kiseong Jeon

Gunho Kim

Hyojin Lee

Hyun Jae Lee

Sanghoon Han

Hyun Sup Lee

Jangsoo Lee

Jeehyoung Kim

Wonsuk Jung

Chulyoung Kim

Yunsic Hong

Hyunsoo Park

Kyuje Yoo

Seungbo Yang

Changhoon Lee

Younho Heo

Sungyun Park

Edmond Changkyun Park

Doo-Yeol Koh

Min-Gu Lee

Gun-Hwa Kim

Ki-Hyun Kim

Jong Ho Lee

Jeong Hun Kim

Jinhee Park

Jong-Chan Lee

Suenghoon Han

Kwonjong Lee

Jong Shin Yoo

Jong-Lae Park

Ji Eun Lee

Seungil Park

Heonmin Lee

Daesik Hong

Intae Park

Bong Soo Kim

Minsu Kim

Inbum Yang

Sehwon Ahn

Chaedeok Lee

Jieun Song

Jungmin Lee

Dongseok Shin

Sungyoon Ryu

Dong Hyun Jo

JangBae Kim

Junoh Shin

Youngdo Kim

Youngcheol Choi

Junyeong Jin

Jemin Yu

Yeong Hee Ahn

Youngtae Lee

Si-Young Lee

Wonki Yoon

Jehoon Lee

Wansoo Chang

Seung Il Kim

Myeongseong Kim

Seung-Ho Lee

Sun Mi Jin

Hakkeon Lee

Changhyun Jeong

Daun Jeong

Yunjung Kim

Jong-Soon Choi

Hongcheol Lee

Jinwon Chung

Hyung-Bae Park

Dohan Kim

Hyun Jhung Jhun

Sulah Youn

Busun Kim

Bong-soo Kang

Youngjoo Hong

Byung-Soo Kwon

Jeongho Ahn

Hyojun Park

Hyungchul Lee

Wonsik Kwon

Kyungho Choi

Yumi Oh

Gunwoo Park

Discussed is an apparatus and a method of manufacturing a display using a micro light emitting diode (LED). A method of manufacturing a display device using a light emitting element includes providing a substrate having an individual pixel position defined by a pair of assembly electrodes; moving the light emitting element including a magnetic body on to the substrate using a magnetic chuck having an electromagnet; assembling the light emitting element at the individual pixel position using the magnetic chuck; and recovering a remaining light emitting element which is not assembled at the individual pixel position using the magnetic chuck.

Apparatus and method of manufacturing display using light emitting element

A method of manufacturing an electrode for secondary battery is provided. The method includes melting lithium at a first temperature to produce a first melt; stirring a metal fluoride powder together with the first melt at a second temperature to produce a second melt; and producing a lithium alloy electrode with the second melt, wherein the lithium alloy electrode includes lithium fluoride.

Electrode for secondary battery and method of manufacturing the same

The present invention relates to a display device, and more particularly, to a display device using semiconductor light-emitting devices of several micrometers to tens of micrometers in size. The present invention provides a display device comprising: a base part; a plurality of assembly electrodes which is arranged on the base part and which generates an electric field when power is applied thereto; a dielectric layer formed to cover the assembly electrodes; and a plurality of semiconductor light-emitting devices arranged on the dielectric layer; wherein each of the semiconductor light-emitting devices comprises: a first assembly control layer formed at a portion of the whole area of one surface facing the dielectric layer; and a second assembly control layer formed at the other portion of the whole area of the one surface facing the dielectric layer, and made of a material different from that of the first assembly control layer.

Display device using semiconductor light-emitting devices having a passivation layer

The present invention relates to a display apparatus, specifically to a display apparatus using semiconductor light-emitting elements of a few micrometers to tens of micrometers in size. The present invention provides a display apparatus comprising: a base part; a partition part having a plurality of grooves; a plurality of semiconductor light-emitting elements arranged on the base part and mounted in the plurality of grooves; first and second wiring electrodes arranged on one side and the other side of each of the semiconductor light-emitting elements, respectively; an assembly electrode arranged on the base part and arranged on the one side of each of the semiconductor light-emitting elements; and a dielectric layer arranged on the base part and arranged between the assembly electrode and the first wiring electrode, wherein each of the plurality of grooves includes at least one recess portion formed in the horizontal direction with respect to the base part.

Display apparatus using semiconductor light-emitting device

A display device can include a base part, a semiconductor light emitting device disposed on a first region of the base part, and a plurality of assembly electrodes extending along one direction on the base part and to which a voltage is applied to dispose the semiconductor light emitting device at a pre-set position on the first region. The plurality of assembly electrodes are disposed not to overlap a thin film transistor.

Display device using semiconductor light emitting device

According to the present disclosure, a substrate for manufacturing a display device has a structure in which a semiconductor light-emitting device package composed of a plurality of electrodes and semiconductor light-emitting devices can be uniformly aligned. As a result, according to the present disclosure, a semiconductor light-emitting device package that has been transferred by a pick-and-place method in the related art may be allowed to be transferred through self-assembly, thereby having an effect of improving process efficiency (improving process speed and reducing time).

Substrate for manufacturing display device and a manufacturing method using the same

A composite including a sulfur-carbon composite and a coating layer on a surface of the sulfur-carbon composite, the coating layer including a porous carbon material and a point contact binder is disclosed. Also disclosed is a method for preparing the same, and a positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.

Sulfur-carbon composite, method for preparing the same, and positive electrode for lithium-sulfur battery and lithium-sulfur battery comprising the same

The present invention relates to a robot vacuum cleaner comprising sub-wheels having variable rotational positions, the robot vacuum cleaner comprising subframes rotatably attached to main frames to ground the sub-wheels when in a constrained state.

Robot vacuum cleaner

A display apparatus according to the present invention comprises a substrate including semiconductor light-emitting devices and a wiring electrode electrically connected to the semiconductor light-emitting devices, wherein the substrate comprises: a base portion; assembly electrodes extending in one direction and arranged on the base portion; a dielectric layer formed to cover the assembly electrodes; a barrier portion formed on the dielectric layer while forming a cell on which the semiconductor light-emitting devices are mounted along an extension direction of the assembly electrodes; and a planarization layer formed to cover the barrier portion while forming a hole overlapping the cell, wherein the hole comprises: a first hole exposing the semiconductor light-emitting device; and a second hole exposing the dielectric layer or the base portion.

Disclosed is a sulfur-carbon composite, a method for manufacturing the same, and a positive electrode for a lithium secondary battery and a lithium secondary battery including the same, which has excellent reactivity and lifetime characteristics and has an effect of reducing overvoltage.

Sulfur-carbon composite, positive electrode for lithium secondary battery including same, and lithium secondary battery

The present disclosure is applicable to a display apparatus-related technology field, and relates to, for example, a display apparatus using a micro light emitting diode (LED), which is a semiconductor light emitting device. The present invention provides a display apparatus using a light emitting device operated in an active matrix scheme, the display apparatus comprising: a substrate; a pixel area layer configuring multiple pixel areas, which are arranged on the substrate and each of which includes a light emitting area and a pixel transistor area; and an assembly wiring layer including multiple pairs of assembly wires arranged between the substrate and the pixel area layer, wherein each of the pixel areas may include a light emitting area in which a light emitting device is mounted, and a pixel transistor area, which is positioned in a first direction with respect to the light emitting area and in which a thin film transistor for lighting the light emitting device is disposed, and the assembly wires may be arranged in a second direction different from the first direction.

Display apparatus using semiconductor light emitting device

Discussed is a display device including a base portion; assembly electrodes that extend in one direction and are disposed on the base portion at predetermined intervals; a dielectric layer deposited on the base portion to cover the assembly electrodes; a first wiring electrode that extends in the same direction as the assembly electrodes and is disposed on the dielectric layer so as not to overlap the assembly electrodes; a partition wall portion deposited on the dielectric layer while arranging cells at predetermined intervals to overlap the assembly electrodes and the first wiring electrode along an extension direction of the assembly electrodes; and semiconductor light-emitting elements seated in the cells, respectively, wherein a solder layer electrically connecting a semiconductor light-emitting element seated in a cell and the first wiring electrode overlapping the cell is filled in the cell from among the plurality semiconductor light emitting elements and the cells.

Display device using semiconductor light-emitting elements, and manufacturing method therefor

Disclosed is a sulfur-carbon composite including a porous carbon material coated with a thiophene-based polymer doped with a dopant and sulfur on at least a portion of an interior and a surface of the porous carbon material, and a positive electrode for lithium secondary battery, and a lithium secondary battery including the same. Also disclosed is a method for preparation thereof.

Sulfur-carbon composite, and cathode for lithium secondary battery and lithium secondary battery which comprise same

The present disclosure relates to a positive electrode active material, a preparation method thereof, and a lithium-sulfur battery including the same, more particularly to a positive electrode active material including a particulate structure of a core-shell structure which comprises a core part and a shell part covering the whole surface or a part of the surface of the core part, wherein the core part comprises a sulfur compound, and the shell part comprises a polythiophene acetic acid-polyethylene glycol graft copolymer. The positive electrode active material of the present disclosure has excellent electrochemical reactivity and adsorbs lithium polysulfide to improve capacity and lifetime characteristics of the lithium-sulfur battery.

Positive electrode active material for lithium-sulfur battery, preparation method thereof and lithium-sulfur battery comprising same

A lithium-sulfur secondary battery comprising a positive electrode, a negative electrode, a separator, and an electrolyte solution are provided. The positive electrode has an SC factor value of 0.45 or more. The electrolyte solution includes a solvent and a lithium salt, and the solvent includes a first solvent having a DVfactor value of 1.7 or less, and a second solvent which is a fluorinated ether-based solvent.

Lithium-sulfur secondary battery

Growing community of inventors

Daejeon, South Korea

Soohyun Kim