Patents Assigned to Seoul Viosys Co., Ltd.
  • Patent number: 10937935
    Abstract: A light emitting diode chip includes: a first conductivity type semiconductor layer; a mesa disposed on a partial region of the first conductivity type semiconductor layer, and including an active layer and a second conductivity type semiconductor layer; a transparent electrode being in ohmic contact with the second conductivity type semiconductor layer; a first current spreader being in ohmic contact with the first conductivity type semiconductor layer; a second current spreader electrically connected to the transparent electrode; an insulation layer covering the mesa, the first current spreader and the second current spreader, and including a distributed Bragg reflector. A lateral distance between the first current spreader and the mesa is larger than a thickness of the insulation layer, and a first side surface of the first current spreader close to the mesa is longer than the second side surface thereof.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 2, 2021
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jin Woong Lee, Kyoung Wan Kim, Keum Ju Lee
  • Patent number: 10933157
    Abstract: The present invention relates to an apparatus capable of purifying air and maintaining freshness inside a refrigerator while minimizing deformation of the structure of an existing refrigerator, and a method for controlling the same. The apparatus for air purification and freshness maintenance according to the present invention is formed separately from a storage space (12) of a refrigerator (10) and is installed on a cooling passage (14) which communicates with the storage space (12) through an inlet (13) and an outlet (15), wherein a photocatalyst filter (30) is installed in the vicinity of the outlet (15) within the cooling passage (14), and a plurality of cells (32) forming an air vent are formed in the photocatalyst filter (30) in the same direction as the air flow direction within the cooling passage (14), in which a UV LED (41) for radiating ultraviolet rays toward the cells (32) of the photocatalyst filter (30) is installed.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 2, 2021
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventor: Kyo Young Seo
  • Patent number: 10937938
    Abstract: A light emitting device includes a first light emitting cell, a second light emitting cell, a first conductive pattern, a second conductive pattern, and a connection pattern. The connection pattern includes contact portions electrically connected to a second conductivity type semiconductor layer of the first light emitting cell and a first conductivity type semiconductor layer of the second light emitting cell. At an edge of a first region facing the second light emitting cell, one contact portion of the first conductive pattern is disposed between the contact portions of the connection pattern electrically connected to the second conductivity type semiconductor layer of the first light emitting cell, and one contact portion of the first conductive pattern is open outwards.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: March 2, 2021
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Se Hee Oh, Min Woo Kang, Jong Kyu Kim, Hyun A Kim
  • Patent number: 10935192
    Abstract: A tube-shaped LED lighting device including: a substrate; a light emitting device mounted on the substrate; a heat sink having one surface on which the substrate is seated, and opposite side surfaces including a groove portion; a cover to receive the heat sink, the substrate, and the light emitting device therein, and including an overhang protruding from an inner wall of the cover to be inserted into the groove portion; and a base coupled to an end of the cover, in which the heat sink includes a substrate holding portion surrounding opposite sides of the substrate.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: March 2, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventor: Kyu Won Han
  • Patent number: 10928083
    Abstract: An air conditioner including a body having an evaporator for heat-exchanging air flowing in the body, and an air purifying module coupled to the body. The air purifying module may have a light emitting diode part disposed along a flow path of the air to provide ultraviolet rays, and a filter part disposed adjacent to the light emitting diode part.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: February 23, 2021
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jung Yeol Park, Young Hwan Son, Seong Min Lee, Jae Seon Yi, Jong Hyun Koo, Sang Hee Cho, Ju Won Yoo, Sung Lim Cho, Jong Rack Kim
  • Publication number: 20210050483
    Abstract: A light emitting element package includes a substrate provided with an interconnect portion, a light emitting element mounted on the substrate and connected to the interconnect portion, and a cover member contacting an upper surface of the light emitting element while covering the light emitting element. The cover member comprises Teflon-based organic polymers and has a light transmittance of 85% or more in an ultraviolet wavelength range.
    Type: Application
    Filed: November 2, 2020
    Publication date: February 18, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Yuriy BILENKO, Ki Yon PARK
  • Patent number: 10923642
    Abstract: A light emitting diode including an n-type semiconductor layer, a mesa disposed on the n-type semiconductor layer and exposing a portion thereof, and including an active layer and a p-type semiconductor layer, first and second bonding pads electrically connected to the n-type and p-type semiconductor layers, respectively, and a first insulation layer at least partially disposed between the exposed portion of the n-type semiconductor layer exposed by the mesa and the second bonding pad, in which the exposed portion of the n-type semiconductor layer has a first portion having a shortest distance to the second bonding pad, the first insulation layer covers a portion of the p-type semiconductor layer disposed between the second bonding pad and the first portion of the n-type semiconductor layer, and the first insulation layer is disposed along an edge of the p-type semiconductor layer adjacent to the exposed portion of the n-type semiconductor layer.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: February 16, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Sang Won Woo, Ye Seul Kim, Tae Jun Park, Duk Il Suh
  • Patent number: 10918760
    Abstract: A deodorization module and a storage apparatus, the deodorization module including: a housing having one surface including a curved surface; a suction port formed on one surface of the housing to draw in external air; a fan disposed in the suction port and drawing in air; a discharge port formed on one surface of the housing to discharge the air drawn through the fan into the outside of the housing; a photocatalytic filter disposed between the fan and the discharge port and including a through hole through which air passes; and a light source module for irradiating ultraviolet rays onto the photocatalytic filter.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: February 16, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventor: Jae Hak Jeong
  • Publication number: 20210041069
    Abstract: An LED light source unit for plant cultivation includes: at least one first light emitting diode chip emitting light of 430 nm or less, at least three types of phosphors excited by the at least one first light emitting diode chip, and combined light emitted from the first light emitting diode chip and the at least three types of phosphors produces a basic spectrum of white light having a color temperature of 5000K or more.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 11, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Sang Min KO, Jin Won KIM
  • Publication number: 20210043460
    Abstract: A manufacturing method of a semiconductor substrate includes forming a sacrificial layer on an upper surface of a base substrate, etching the sacrificial layer to form a plurality of concave portions and a plurality of convex portions, forming a growth suppression layer on the sacrificial layer, removing a portion of the growth suppression layer to expose an upper surface of the convex portion of the sacrificial layer, growing a semiconductor layer on the sacrificial layer, and separating the semiconductor layer from the sacrificial layer. The convex portions as a whole have a honeycomb shape, and the concave portion has a hexagonal shape, when viewed in a plan view.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Hee Sub LEE, Chae Hon KIM
  • Publication number: 20210030915
    Abstract: An air purification module comprises: a housing having an interior space provided with an air inlet and an air outlet; an axial type blowing fan, mounted in the housing, for moving air from the air inlet to the air outlet; an air purifying unit, provided on a flow path of the air, for purifying the air; and a first guide for reducing the flow rate of the air between the blowing fan and the air purifying unit. The air purifying unit includes: a filter provided between the blowing fan and the air outlet; and a light source unit for providing light to the filter.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 4, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Ji Won KIM, Jae Hak JEONG, Sang Cheol SHIN, Woong Ki JUNG
  • Publication number: 20210008241
    Abstract: A water sterilization module includes a container including a water inlet and a water outlet and containing water therein, and a light source part mounted on a part of the container and irradiating sterilizing light into the container. The water inlet has a diameter larger than a diameter of the water outlet.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jae Hak JEONG, Woong Ki JUNG, Hee Ho BAE, Byeong Cheol JU
  • Publication number: 20210010695
    Abstract: An air cleaning module includes a filter, a fan, a light source unit, a housing and a guide structure. The fan is configured to provide a suction direction and a blowing direction of a fluid which are substantially aligned. The light source unit is arranged to be adjacent to the filter to emit a light toward the filter. The light having a property that sterilizes a contaminant source in a fluid. The housing includes a fluid passage space. The guide structure is arranged between the fan and the filter and configured to guide a fluid to move along a fluid passage path set by the guide structure. The filter and the light source unit are arranged in the fluid passage space such that the light source unit sterilizes a fluid as a fluid flows toward the light source unit.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Ji-Won KIM, Jae-Hak JEONG, Sang-Chul SHIN
  • Patent number: 10892296
    Abstract: A light emitting device including first, second, and third LED sub-units, and electrode pads disposed on the first LED sub-unit, electrically connected to the LED sub-units, and including a common electrode pad electrically connected to each of the LED sub-units, and first, second, and third electrode pads connected to a respective one of the LED sub-units, in which the common electrode pad, the second electrode pad, and the third electrode pad are electrically connected to the second LED sub-unit and the third LED sub-unit through holes that pass through the first LED sub-unit, the first, second, and third LED sub-units are configured to be independently driven, light generated in the first LED sub-unit emitted to the outside through the second and third LED sub-units, and light generated in the second LED sub-unit is emitted to the outside through the third LED sub-unit.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 12, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee, Chang Yeon Kim, Chung Hoon Lee
  • Patent number: 10892297
    Abstract: A light emitting diode (LED) stack for a display includes a first LED sub-unit having a first surface and a second surface, a second LED sub-unit disposed on the first surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a reflective electrode disposed on the second side of the second LED sub-unit and forming ohmic contact with the first LED sub-unit, and an ohmic electrode interposed between the first LED sub-unit and the second LED sub-unit and forming ohmic contact with the first LED sub-unit, in which the second LED sub-unit and the third LED sub-unit are configured to transmit light generated from the first LED sub-unit, and the third LED sub-unit is configured to transmit light generated from the second LED sub-unit.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 12, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Publication number: 20210005787
    Abstract: A light emitting diode chip includes a substrate; a first conductivity type semiconductor layer disposed on the substrate; a mesa; a transparent electrode; a contact electrode; a current spreader; a first insulating reflection layer; a first pad electrode and a second pad electrode; and a second insulating reflection layer. The first insulating reflection layer covers one end of the substrate, the first conductivity type semiconductor layer, the mesa, the transparent electrode. The second insulating reflection layer is disposed on an opposite end of the substrate and includes a structure of a distributed Bragg reflector (DBR).
    Type: Application
    Filed: September 18, 2020
    Publication date: January 7, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jin Woong LEE, Kyoung Wan KIM, Tae Jun PARK, Sang Won WOO
  • Publication number: 20210000021
    Abstract: A plant cultivation light source includes a plurality of light sources configured to be turned on or turned off depending on a selected plant and a growth stage of the selected plant, and a controller. The controller is operable to turn on the light sources during a light period such that the light sources are operable to emit a light having a spectrum with a plurality of peaks to the selected plant. The light period including a first period and a second period and the first period preceding or following the second period. The controller is operable to adjust the spectrum of the light to alternate the first period and the second period during the light period.
    Type: Application
    Filed: September 16, 2020
    Publication date: January 7, 2021
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Se Ryung KIM, Sang Min KO, Jin Won KIM, Hyun Su SONG
  • Patent number: 10886327
    Abstract: A light emitting stacked structure including a plurality of epitaxial sub-units disposed one over another, each epitaxial sub-unit configured to emit colored light having different wavelength band from each other, and a common electrode disposed between and connected to adjacent epitaxial sub-units, in which light emitting regions of the epitaxial sub-units overlap each other.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 5, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee
  • Patent number: 10886447
    Abstract: A light emitting device including a first light emitting part including a first ohmic layer, a second light emitting part and including a second ohmic layer, a third light emitting part including first and second metal patterns respectively contacting semiconductor layers thereof, a first pad electrically coupled with the first ohmic layer, a second pad electrically coupled with the second ohmic layer, a third pad electrically coupled with the first metal pattern, a common pad electrically coupled with a semiconductor layer of the first and second light emitting parts and the second metal pattern, and a via structure electrically coupling the second metal pattern and the common pad between the second metal pattern and the common pad, in which the second metal pattern has a first portion contacting the first via structure and a second portion contacting the semiconductor layer of the third light emitting part.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: January 5, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seong Gyu Jang, Ho Joon Lee, Jong Hyeon Chae
  • Patent number: 10879419
    Abstract: A light emitting device including a first light emitting part including a first n-type semiconductor layer, and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first transparent electrode vertically stacked one over another and exposing a portion of a first surface the first n-type semiconductor layer, a second light emitting part disposed on the exposed portion of the first n-type semiconductor layer and spaced apart from the first mesa structure, and including a second n-type semiconductor layer, a second active layer, a second p-type semiconductor layer, and a second transparent electrode, and a first bonding part bonding and electrically coupling the first n-type semiconductor layer and the second n-type semiconductor layer to each other.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: December 29, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang