Patents by Inventor Sangtae Park

Sangtae Park 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: 20190383611
    Abstract: The present disclosure relates to a gyroscope that makes use of a shuttle having a first plurality of fingers, a stator having a second plurality of fingers, at least one fixed support structure, and a plurality of flexors for supporting the shuttle for vibratory motion relative to the stator. The fingers of the shuttle are able to move in a vibratory motion adjacent the fingers of the stator without contacting the fingers of the stator. Portions of the fingers of at least one of the shuttle and the stator also make use of a grounded metal material layer to reduce parasitic capacitive coupling between the fingers of the shuttle and the fingers of the stator.
    Type: Application
    Filed: June 14, 2018
    Publication date: December 19, 2019
    Inventors: Sangtae PARK, Satinderpall S. PANNU
  • Publication number: 20190368053
    Abstract: A thin film etchant composition for preventing re-adsorption of an etched metal and uniformly etching a thin film is provided. The thin film etchant composition includes about 43 wt % to about 46 wt % of phosphoric acid, about 5 wt % to about 8 wt % of nitric acid, about 10 wt % to about 17 wt % of acetic acid, about 1 wt % to about 3 wt % of iron nitrate, about 0.7 wt % to about 1.5 wt % of phosphate, and deionized water as a remaining amount based on a total weight of the thin film etchant composition.
    Type: Application
    Filed: February 25, 2019
    Publication date: December 5, 2019
    Inventors: Jinhyung Kim, Joohwan Chung, Jinsook Kim, Haccheol Kim, Byungsu Lee, Changsoo Kim, Jungseek Jung, Dongki Kim, Sangtae Kim, Giyong Nam, Youngchul Park, Kyungbo Shim, Daesung Lim, Sanghoon Jang
  • Patent number: 10488576
    Abstract: An image display apparatus includes a display, a signal processing device spaced apart from the display to transmit power and a video signal to the display, a plurality of cables configured to transmit power and the video signal from the signal processing device, and an optical sheet attached to the cables. The optical sheet includes a Fresnel pattern formed on the plurality of cables and transparent partition walls formed between the plurality of cables. The Fresnel pattern includes a plurality of peaks and valleys and differences in depth between the peaks and the valleys are decreased from the cables to the transparent partition walls. Therefore, the cables provided between the display and the signal processing device appear transparent.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: November 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Chansung Jeong, Sangtae Park
  • Publication number: 20190326267
    Abstract: A display according to various embodiments of the present disclosure may include: a first face oriented in a first direction; a second face oriented in a second direction opposite the first direction; a plurality of pixels disposed in a space between the first face and the second face; and a plurality of pins disposed on the second face and configured to electrically connect the plurality of pixels to an external device.
    Type: Application
    Filed: February 14, 2019
    Publication date: October 24, 2019
    Inventors: Sangtae HAN, Taesang PARK, Changsun KANG, Mijin KIM, Kyoree LEE
  • Publication number: 20190237507
    Abstract: A display device is disclosed. The display device includes a light-transmitting substrate having one surface, a pad formed on the one surface, and an electrode layer formed on the one surface, electrically connected to the pad, and having a mesh shape. The electrode layer includes a first region adjacent to the pad and spaced apart from the pad, and a second region connecting the pad to the first region. A density of the mesh shape of the second region is higher than a density of the mesh shape of the first region.
    Type: Application
    Filed: October 12, 2018
    Publication date: August 1, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Daewoon HONG, Sangtae PARK, Myeongwook BAE, Jeongsik CHOI
  • Patent number: 10306780
    Abstract: A display device of the present disclosure includes a transparent plate, a first display panel disposed at on a first surface of the transparent plate, a first transparent frame disposed at on the first surface of the transparent plate and adjacent to a side of the first display panel, a first receiving portion formed on at the transparent plate and positioned between the transparent plate and the first display panel, a slot formed at at least one of the transparent plate or the first transparent frame, a first member layer connected to a first side of the first display panel, a first PCB connected to the first member layer and positioned at the first receiving portion, and a first cable extended extending from the first PCB and inserted into the slot.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 28, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinha Heo, Sangtae Park, Jonghyun Byeon, Jeongsik Choi, Hyunjong Ryu, Myeongwook Bae, Jingyu Kim, Kyounghwa Park, Sangdon Park, Jongjin Woo
  • Publication number: 20190153318
    Abstract: An etchant includes: based on a total weight of the etchant, about 1 wt % to about 15 wt % of sulfurized peroxide, about 5 wt % to about 10 wt % of nitric acid, about 20 wt % to about 40 wt % of organic acid, about 0.05 wt % to about 5 wt % of ferric nitrate, about 0.1 wt % to about 5 wt % of ionic sequestrant, and 0.1 wt % to 5 wt % of corrosion inhibitor, wherein a remaining amount is deionized water.
    Type: Application
    Filed: October 10, 2018
    Publication date: May 23, 2019
    Inventors: Jonghee PARK, Kitae KIM, Jinseock KIM, Beomsoo KIM, Sangtae KIM, Kyungbo SHIM, Giyong NAM, Youngjin YOON, Daesung LIM
  • Patent number: 10290786
    Abstract: A transparent light emitting diode film is disclosed. The transparent light emitting diode film includes a base, an electrode layer positioned on the base and having at least one pattern, a pad formed on at least a portion of the electrode layer, a light emitting diode positioned on the pad, and an adhesive layer formed on at least another portion of the electrode layer. The adhesive layer includes first and second adhesive layers each having a different adhesive strength.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: May 14, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Daewoon Hong, Sangtae Park, Jeongsik Choi, Dongjin Yoon
  • Publication number: 20190096955
    Abstract: A display device is disclosed. The display device includes a substrate having a front surface and a rear surface opposite the front surface, an electrode layer formed on the front surface, a light source provided on the front surface and connected to the electrode layer, a first resin layer attached to the front surface of the substrate, and including a through hole exposing at least a part of the electrode layer and the light source to outside, and a second resin positioned in the through hole and covering the part of the electrode layer exposed to the outside. A volume of the second resin is 30 to 70% of a difference between a volume of a space formed by the through hole and a volume of the light source.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 28, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Daewoon HONG, Sangtae PARK, Myeongwook BAE, Jeongsik CHOI
  • Patent number: 10241625
    Abstract: A display device is disclosed. The display device of present invention comprises a display panel; a light transmitting panel positioned at a front of the display panel, the light transmitting panel including a first edge and a second edge opposite to the first edge; a back cover positioned at a rear of the display panel; and a sensor unit adjacent to a lateral side of the display panel. The sensor unit includes a frame and a optical transmitter and a optical receiver. The optical transmitter includes a optical assembly and a optical bender.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: March 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Chansung Jeong, Dongjin Yoon, Sangtae Park
  • Publication number: 20190037711
    Abstract: Disclosed is a display control module including a supporting member including a pair of external coupling parts for attaching to an external surface in a negative Y-axis direction and a pair of guide surfaces configured to form opposite side ends of the external coupling parts in an X-axis direction; and a PCB coupled to the supporting member in a positive Y-axis direction, the PCB being provided at opposite sides of the PCB in the X-axis direction with a pair of connection terminals configured to be connected to a pair of display modules, respectively, and a display device including a pair of display modules; a supporting member positioned between the pair of display modules in an X-axis direction; and a printed circuit board coupled to the supporting member in a positive Y-axis direction, wherein the display modules are connected to opposite sides of the PCB in the X-axis direction.
    Type: Application
    Filed: October 3, 2018
    Publication date: January 31, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Daewoon HONG, Sangtae PARK, Dongjin YOON, Jeongsik CHOI
  • Publication number: 20190020842
    Abstract: An image display apparatus includes a display, a signal processing device spaced apart from the display to transmit power and a video signal to the display, a plurality of cables configured to transmit power and the video signal from the signal processing device, and an optical sheet attached to the cables. The optical sheet includes a Fresnel pattern formed on the plurality of cables and transparent partition walls formed between the plurality of cables. The Fresnel pattern includes a plurality of peaks and valleys and differences in depth between the peaks and the valleys are decreased from the cables to the transparent partition walls. Therefore, the cables provided between the display and the signal processing device appear transparent.
    Type: Application
    Filed: July 11, 2018
    Publication date: January 17, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Chansung JEONG, Sangtae PARK
  • Publication number: 20190004216
    Abstract: A display apparatus is disclosed. The display apparatus includes a display including an active area for displaying an image and a black matrix adjacent to the active area, and an optical sheet attached onto the display. The optical sheet includes a Fresnel pattern formed on the black matrix and a portion of the active area. The Fresnel pattern includes a plurality of peaks and a plurality of valleys, which are formed such that depths between the peaks and the valleys gradually increase from the active area to the black matrix. Therefore, it is possible to view an image in front of the black matrix, on which an image is not actually displayed.
    Type: Application
    Filed: June 26, 2018
    Publication date: January 3, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Chansung JEONG, Sangtae PARK, Myeongwook BAE, Dongjin YOON, Munseok JANG
  • Publication number: 20190004668
    Abstract: A display device is disclosed. The display device of present invention comprises a display panel; a light transmitting panel positioned at a front of the display panel, the light transmitting panel including a first edge and a second edge opposite to the first edge; a back cover positioned at a rear of the display panel; and a sensor unit adjacent to a lateral side of the display panel. The sensor unit includes a frame and a optical transmitter and a optical receiver. The optical transmitter includes a optical assembly and a optical bender.
    Type: Application
    Filed: October 3, 2017
    Publication date: January 3, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Chansung JEONG, Dongjin YOON, Sangtae PARK
  • Patent number: 10167191
    Abstract: A method of fabricating a semiconductor device, includes, in part, growing a first layer of oxide on a surface of a first semiconductor substrate, forming a layer of insulating material on the oxide layer, patterning and etching the insulating material and the first oxide layer to form a multitude of oxide-insulator structures and further to expose the surface of the semiconductor substrate, growing a second layer of oxide in the exposed surface of the semiconductor substrate, and removing the second layer of oxide thereby to form a cavity in which a MEMS device is formed. The process of growing oxide in the exposed surface of the cavity and removing this oxide may be repeated until the cavity depth reaches a predefined value. Optionally, a multitude of bump stops is formed in the cavity.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: January 1, 2019
    Assignee: KIONIX, INC.
    Inventors: Martin Heller, Jonah deWall, Andrew Hocking, Kristin Lynch, Sangtae Park
  • Patent number: 10134927
    Abstract: A photoconductive switch consisting of an optically actuated photoconductive material, e.g. a wide bandgap semiconductor such as SiC, situated between opposing electrodes. The electrodes are created using various methods in order to maximize reliability by reducing resistive heating, current concentrations and filamentation, and heating and ablation due to the light source. This is primarily accomplished by the configuration of the electrical contact geometry, choice of contacts metals, annealing, ion implantation, creation of recesses within the SiC, and the use of coatings to act as encapsulants and anti-reflective layers.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: November 20, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Lars Voss, Mihail Bora, George Caporaso, Adam Conway, Hoang T. Nguyen, Rebecca J. Nikolic, Stephen E. Sampayan, Sangtae Park
  • Patent number: 10123435
    Abstract: Disclosed is a display control module including a supporting member including a pair of external coupling parts for attaching to an external surface in a negative Y-axis direction and a pair of guide surfaces configured to form opposite side ends of the external coupling parts in an X-axis direction; and a PCB coupled to the supporting member in a positive Y-axis direction, the PCB being provided at opposite sides of the PCB in the X-axis direction with a pair of connection terminals configured to be connected to a pair of display modules, respectively, and a display device including a pair of display modules; a supporting member positioned between the pair of display modules in an X-axis direction; and a printed circuit board coupled to the supporting member in a positive Y-axis direction, wherein the display modules are connected to opposite sides of the PCB in the X-axis direction.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: November 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Daewoon Hong, Sangtae Park, Dongjin Yoon, Jeongsik Choi
  • Publication number: 20180282154
    Abstract: A method of fabricating a semiconductor device, includes, in part, growing a first layer of oxide on a surface of a first semiconductor substrate, forming a layer of insulating material on the oxide layer, patterning and etching the insulating material and the first oxide layer to form a multitude of oxide-insulator structures and further to expose the surface of the semiconductor substrate, growing a second layer of oxide in the exposed surface of the semiconductor substrate, and removing the second layer of oxide thereby to form a cavity in which a MEMS device is formed. The process of growing oxide in the exposed surface of the cavity and removing this oxide may be repeated until the cavity depth reaches a predefined value. Optionally, a multitude of bump stops is formed in the cavity.
    Type: Application
    Filed: August 24, 2017
    Publication date: October 4, 2018
    Inventors: Martin Heller, Jonah deWall, Andrew Hocking, Kristin Lynch, Sangtae Park
  • Patent number: 10074776
    Abstract: A display device is provided. A transparent light emitting diode film includes: a base; an electrode layer located on the base and in which at least one pattern is formed; a pad formed in at least one portion on the electrode layer; a light emitting diode located on the pad; and an adhesive layer formed in at least another portion on the electrode layer, wherein in the adhesive layer, an opening portion is formed in a portion corresponding to the light emitting diode. Therefore, when forming the transparent light emitting diode film by including a material having strong heat resistance, a state change by a temperature may not occur.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: September 11, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Daewoon Hong, Jeongsik Choi, Sangtae Park, Dongjin Yoon
  • Publication number: 20180220538
    Abstract: Disclosed is a display control module including a supporting member comprising a pair of external coupling parts for attaching to an external surface in a negative Y-axis direction and a pair of guide surfaces configured to form opposite side ends of the external coupling parts in an X-axis direction; and at least one PCB coupled to the supporting member in a positive Y-axis direction, the at least one PCB being provided at opposite sides of the at least one PCB in the X-axis direction with a pair of connection terminals configured to be connected to a pair of display modules, respectively.
    Type: Application
    Filed: July 27, 2017
    Publication date: August 2, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Daewoon HONG, Sangtae PARK, Dongjin YOON, Jeongsik CHOI