Patents by Inventor Dong Hyeok AN

Dong Hyeok AN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210328579
    Abstract: A semiconductor device includes a circuit including an input coupled to a first node; and a first signal control circuit configured to determine a voltage of the first node in a low power mode, wherein the first signal control circuit sets a voltage of the first node to a first value in an n-th occurrence of the low power mode and a second value different from the first value in an m-th occurrence of the low power mode, and wherein n and m are two different natural numbers.
    Type: Application
    Filed: November 13, 2020
    Publication date: October 21, 2021
    Inventors: Shin Hyun JEONG, Suhwan KIM, Gi Moon HONG, Ji Hyo KANG, Jae Hyeok YANG, Dae Han KWON, Dong Hyun KIM
  • Publication number: 20210320265
    Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of an amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including at least one of a first hole blocking material and a second hole blocking material and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative, and wherein the first hole blocking material is an azine derivative, and the second hole blocking material is a benzimidazole derivative.
    Type: Application
    Filed: December 21, 2019
    Publication date: October 14, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: In Bum SONG, Seung Hee YOON, Jin Ho PARK, Dong Hyeok LIM
  • Patent number: 11145638
    Abstract: An exemplary semiconductor device can comprise (a) a substrate comprising a substrate dielectric structure between the substrate top side and the substrate bottom side, conductive pads at the substrate bottom side, and a substrate cavity through the substrate dielectric structure, (b) a base electronic component comprising inner short bumps; outer short bumps bounding a perimeter around the inner short bumps, and tall bumps between the outer short bumps and an edge of the base component top side, and (c) a mounted electronic component coupled to the inner short bumps of the base electronic component. The tall bumps of the base component can be coupled to the conductive pads of the substrate. The mounted electronic component can be located in the substrate cavity. The substrate bottom side can cover at least a portion of the outer short bumps of the base electronic component. Other examples and related methods are disclosed herein.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: October 12, 2021
    Assignee: Amkor Technology Singapore Holding PTE. LTD.
    Inventors: Hyun Goo Cha, Dong Hee Kang, Sang Yun Ma, Sang Hyeok Cho, Jae Yeong Bae, Ron Huemoeller
  • Patent number: 11145833
    Abstract: A stretchable display according to one embodiment of the present invention comprises: a hybrid stretchable substrate divided into a low stretchable region and a high stretchable region having a modulus lower than that of the low stretchable region; a driving element layer including a driving element on the low stretchable region so as to control a light emitting layer, and wiring on the high stretchable region so as to be electrically connected to a part of the driving element to apply an electrical signal; and the light emitting layer provided on the driving element layer, and electrically connected to the driving element layer to emit light, wherein, between the driving element and the wiring, the wiring can overlap a stretchable mask pattern having a shape corresponding to either the low stretchable region or high stretchable region.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: October 12, 2021
    Assignee: Korea University Research and Business Foundation, Sejong Campus
    Inventors: Sang Il Kim, Mun Pyo Hong, Dong Hyeok Lee, Ho Won Yoon, Min Hyun Jung
  • Publication number: 20210305513
    Abstract: The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one fused aromatic or hetero aromatic ring, and optionally at least one hole blocking layer including an azine-based compound or a benzim-idazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.
    Type: Application
    Filed: December 21, 2019
    Publication date: September 30, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seung Hee YOON, In Bum SONG, Jin Ho PARK, Dong Hyeok LIM
  • Publication number: 20210296589
    Abstract: The present disclosure relates to an OLED that includes a first electrode; a second electrode facing the first electrode; a first emitting material layer including a first host, a second host and a blue dopant and positioned between the first and second electrodes; a first electron blocking layer including an electron blocking material of a heteroaryl-substituted amine derivative and positioned between the first electrode and the first emitting material layer; and a first hole blocking layer including at least one of a first hole blocking material and a second hole blocking material and positioned between the second electrode and the first emitting material layer, wherein the first host is an anthracene derivative, and the second host is a deuterated anthracene derivative, and wherein the first hole blocking material is a azine derivative, and the second hold blocking material is a benzimidazole derivative.
    Type: Application
    Filed: December 21, 2019
    Publication date: September 23, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: In-Bum SONG, Seung-Hee YOON, Jin-Ho PARK, Dong-Hyeok LIM
  • Publication number: 20210280792
    Abstract: The present disclosure relates to an organic light emitting diode that includes at least one emitting material layer including an anthracene-based host and a boron-based dopant, at least one electron blocking layer including an amine-based compound substituted with at least one polycyclic aryl group, and optionally at least one hole blocking layer including an azine-based compound or a benzimidazole-based compound. The organic light emitting diode has enhanced luminous efficiency as well as excellent luminous lifetime.
    Type: Application
    Filed: December 21, 2019
    Publication date: September 9, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Seung Hee YOON, In Bum SONG, Jin Ho PARK, Dong Hyeok LIM
  • Patent number: 11112645
    Abstract: A liquid crystal display device includes a liquid crystal panel, an optical sheet positioned below the liquid crystal panel, a light guide plate positioned below the optical sheet, a selective light-blocking panel positioned below the light guide plate, a reflector positioned below the selective light-blocking panel, and a light emitting diode (LED) assembly positioned on a side of the light guide plate, wherein the selective light-blocking panel is sectioned into a plurality of blocks, and transmits, or diffuses and reflects light emitted to a back surface of the light guide plate for each of blocks.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: September 7, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dae-Hoon Ko, Dong-Hyeok Kim
  • Publication number: 20210265445
    Abstract: A display device may include a first pixel column disposed on a substrate, a second pixel column adjacent to the first pixel column, a third pixel column adjacent to the second pixel column, and a first wiring, a second wiring, and a third wiring respectively and electrically connected to the first pixel column, the second pixel column, and the third pixel column. Each of the first wiring, the second wiring, and the third wiring may include a first line, a second line electrically connected to the first line, the first line and the second line being disposed on different layers, and a third line electrically connected to the second line, the first line, the second line, and the third line being disposed on different layers.
    Type: Application
    Filed: September 24, 2020
    Publication date: August 26, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang Hoon OH, Seung Gyu TAE, Hyun Woo KANG, Dong Hyeok LEE, Chang Ho YI
  • Publication number: 20210249166
    Abstract: A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 12, 2021
    Inventors: In Seong SOHN, Seok BAE, Dong Hyeok CHOI
  • Publication number: 20210238763
    Abstract: Proposed is a laminated anodic oxide film structure in which a plurality of anodic oxide films are stacked. More particularly, proposed is a laminated anodic oxide film structure having a high degree of strength.
    Type: Application
    Filed: December 21, 2020
    Publication date: August 5, 2021
    Inventors: Bum Mo AHN, Sung Hyun BYUN, Dong Hyeok SEO
  • Publication number: 20210219287
    Abstract: A wireless local area network (WLAN) communication method and apparatus using multiple transmission speed partitioning and cooperative transmission are disclosed. The WLAN communication method includes transmitting, by access point to the nodes, transmission time slots, partitions and internal transmission priorities using transmission time slot information, partition information and internal transmission priority information, receiving uplink packet from one node, determining whether downlink data to be transmitted to the high speed or the low speed node is present, or not in the download queue, transmitting, if present, the downlink packet to the nodes, removing downlink data from the download queue for ACK, and transmitting, if not present, transmitting ACK to the nodes.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Dong Hyeok AN, Yu Sung KIM, Ik Jun YEOM
  • Publication number: 20210200031
    Abstract: Discussed are a backlight unit and a display apparatus including the same. The display apparatus includes a light guide plate, optical sheets arranged on an upper surface of the light guide plate, a reflector configured to receive the light guide plate and the optical sheets therein, and a bottom cover configured to receive the reflector therein.
    Type: Application
    Filed: December 24, 2020
    Publication date: July 1, 2021
    Applicant: LG Display Co., Ltd.
    Inventor: Dong-Hyeok SHIN
  • Patent number: 10999841
    Abstract: A wireless local area network (WLAN) communication method and apparatus using multiple transmission speed partitioning and cooperative transmission are disclosed. The WLAN communication method includes transmitting, by access point to the nodes, transmission time slots, partitions and internal transmission priorities using transmission time slot information, partition information and internal transmission priority information, receiving uplink packet from one node, determining whether downlink data to be transmitted to the high speed or the low speed node is present, or not in the download queue, transmitting, if present, the downlink packet to the nodes, removing downlink data from the download queue for ACK, and transmitting, if not present, transmitting ACK to the nodes.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: May 4, 2021
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Dong Hyeok An, Yu Sung Kim, Ik Jun Yeom
  • Publication number: 20210086137
    Abstract: Provided is a separation membrane leaf and a spiral wound module and an apparatus including the same, the separation membrane leaf comprising a separator, a supply-side flow channel material, and a permeation-side flow channel material comprising a tricot, the tricot comprising an adhesive part, and at least a part of the adhesive part being a low density part of the tricot, compared to the rest, wherein the tricot comprises at least one wale, at least one course, and an intersection point at which the at least one wale and the at least one course intersect, and the average distance between two intersection points arranged in parallel in the direction in which the wale of the low-density part is arranged is at least 1.25 times the average distance between two intersection points arranged in parallel in the direction in which the wale of the part other than the low-density part is arranged.
    Type: Application
    Filed: July 24, 2019
    Publication date: March 25, 2021
    Inventors: Phill LEE, Yun Seok CHOE, Gwang Hun CHOI, Soo Hyun KIM, Dong Hyeok SHIN
  • Patent number: 10950680
    Abstract: A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 16, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong-Hyeok Lim, Song-Yi Jeong, Kyu-Il Han, Nam-Seok Yoo, Yu-Ri Park
  • Patent number: 10934512
    Abstract: A micro-fluidic system for a perfusion cell culture is disclosed. The system includes: a substrate; a micro-fluid injection channel defined in the substrate to guide fluid in a plane direction of the substrate; at least two micro-fluid branch channels defined in the substrate, wherein the branch channels are branched from the micro-fluid injection channel; micro-fluid outlet channels defined in the substrate, wherein each of the outlet channels extends from a distal end of each branch channel to a top face of the substrate, wherein each outlet channel has each through-hole defined in the top face portion of the substrate; and well plates disposed on the top face of the substrate, wherein each of the well plates fluid-communicates with each outlet channel. The micro-fluidic system refers to a technique that adjusts a flow of liquid or gas of a very small amount (nanoliter or picoliter) in an extremely miniaturized device.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: March 2, 2021
    Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Jeung Sang Go, Hyeong Jin Jeon, Moon Jeong Kim, Dong Hyeok Park
  • Publication number: 20210044019
    Abstract: An antenna module according to one embodiment of the present invention, comprises: a coil layer including a wound first coil; a shield layer disposed on the coil layer and including a plurality of sequentially stacked magnetic sheets; and a protection layer disposed on the shield layer, wherein the thickness of an edge of the shield layer is greater than the thickness of the center of the shield layer, and the total separation distance between the plurality of magnetic sheets at the edge of the shield layer is greater than the total separation distance between the plurality of magnetic sheets at the center of the shield layer.
    Type: Application
    Filed: January 29, 2019
    Publication date: February 11, 2021
    Inventors: In Seong SOHN, Dong Hyeok CHOI
  • Publication number: 20200388737
    Abstract: The present invention relates generally to an anodic oxide film for electric contact, to an optoelectronic display, and to a method of manufacturing the optoelectronic display. More particularly, the present invention relates to an anodic oxide film for electric contact to electrically connect an optical element and a substrate in a position therebetween, to an optoelectronic display, and to a method of manufacturing the optoelectronic display.
    Type: Application
    Filed: June 1, 2020
    Publication date: December 10, 2020
    Inventors: Bum Mo AHN, Seung Ho PARK, Dong Hyeok SEO
  • Publication number: 20200239821
    Abstract: A micro-fluidic system for a perfusion cell culture is disclosed. The system includes: a substrate; a micro-fluid injection channel defined in the substrate to guide fluid in a plane direction of the substrate; at least two micro-fluid branch channels defined in the substrate, wherein the branch channels are branched from the micro-fluid injection channel; micro-fluid outlet channels defined in the substrate, wherein each of the outlet channels extends from a distal end of each branch channel to a top face of the substrate, wherein each outlet channel has each through-hole defined in the top face portion of the substrate; and well plates disposed on the top face of the substrate, wherein each of the well plates fluid-communicates with each outlet channel. The micro-fluidic system refers to a technique that adjusts a flow of liquid or gas of a very small amount (nanoliter or picoliter) in an extremely miniaturized device.
    Type: Application
    Filed: November 25, 2016
    Publication date: July 30, 2020
    Inventors: Jeung Sang GO, Hyeong Jin JEON, Moon Jeong KIM, Dong Hyeok PARK