Patents by Inventor Sang Hun Lee

Sang Hun Lee 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).

  • Optical modulator including multiple quantum well and carrier blocks and 3D image acquisition apparatus including the same
    Patent number: 10698237
    Abstract: An optical modulator and a 3D image acquisition apparatus including an optical modulator are provided. The optical modulator is disposed in a multiple quantum well including a plurality of quantum wells and a plurality of quantum barriers, and includes at least one carrier block disposed in the multiple quantum well restricting the carrier movement between the multiple quantum wells.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-young Park, Yong-hwa Park, Sang-hun Lee
  • Head-mounted display
    Patent number: 10690927
    Abstract: Embodiments relate to a head-mounted display which comprises: a light source; a lens part disposed on the optical axis of the light source; an image display part disposed apart from the lens part; a body disposed apart from the image display part, including a correction lens having protruding parts disposed at the center of the top and bottom surfaces thereof, and having a first hole, forming a path through which the protruding parts pass and the correction lens moves, disposed in a direction parallel to the optical axis; a correction lens position adjusting part having at least one second hole disposed therein which is coupled to the protruding parts passing through the first hole, surrounding the body, and moving in a direction parallel to the optical axis; and an image viewing part connected to the body.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: June 23, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Yong Bok Choi, Sang Hun Lee
  • Front light unit and image display device
    Patent number: 10684428
    Abstract: A front light unit of an embodiment comprises: a light source unit for an image display device; a light guide unit for guiding light incident from the light source unit and outputting the guided light to a display unit; and a holographic optical element unit being opposite to the display unit and disposed on the light guide unit. Therefore, the present invention can adjust the direction of light output from the light source unit and increase the quantity of light transferred to the display unit, using a pattern formed in the holographical optical element unit, thereby improving the efficiency of light supplied from the light source unit and reducing the sizes of the light unit and the display device including the same.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: June 16, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sang Hun Lee, Min Kim, Tae Kyung Kim, Jung In Jang
  • AIR PURIFICATION DEVICE AND METHOD FOR CONTROLLING SAME
    Publication number: 20200182495
    Abstract: An air purifier is provided. The air purifier includes a plurality of filters, a driving unit configured to individually move the plurality of filters, and a processor configured to control the driving unit so that at least one of the plurality of filters is disposed in an air passage in the air purifier according to an air state.
    Type: Application
    Filed: July 19, 2018
    Publication date: June 11, 2020
    Inventors: Jang-pyo PARK, Yong-won JEONG, Jae-hong KIM, Sang-hun LEE, Jeong-eun LEE, Hye-jung CHO
  • LIQUID CRYSTAL DISPLAY
    Publication number: 20200159064
    Abstract: A liquid crystal display may include a substrate and a color filter set disposed on the substrate. The color filter may include a blue color filter. The blue color filter may include a blue pigment, a violet dye, and a violet absorbing pigment. The violet absorbing pigment may absorb light having a wavelength in a range of 410 nm to 450 nm. The blue color filter may have transmittance in a range of 20% to 30% with respect to light having a wavelength in a range of 425 nm to 435 nm.
    Type: Application
    Filed: May 8, 2019
    Publication date: May 21, 2020
    Inventors: Jung Hyun AHN, Hyo Suk PARK, Ho-Yong SHIN, Sang Hun LEE
  • Wearable display device
    Patent number: 10634916
    Abstract: A wearable display device according to an embodiment may comprise: a first prism, positioned in front of a user's eye, for controlling the path of an incident light and enabling the arrival of a virtual image to be displayed on the eye; a second prism, coupled to the first prism, for reducing distortion of a real image arriving at the user's eye; and a coating layer which is interposed between the first prism and the second prism and of which the brightness is controlled in inverse proportion to the ambient brightness, such that the visibility of the virtual image increases.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: April 28, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sang Hun Lee, Jung In Jang, Yong Bok Choi
  • Wrist-worn apparatus for detecting bio-signal
    Patent number: 10617360
    Abstract: An apparatus for measuring a bio-signal includes: a light source emitting a predetermined amount of light into a human body; a light receiving unit receiving at least some of the predetermined amount of light; and a cover, which is touchable by the human body, protecting the light source and the light receiving unit. The light source and the cover are arranged such that the light source and the cover are separated by a first gap, the light receiving unit and the cover are arranged such that the light receiving unit and the cover are separated by a second gap, and the first gap is less than the second gap.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: April 14, 2020
    Assignees: Hyundai Motor Company, LG Innotek Co., LTd.
    Inventors: Seul Ki Jeon, Nam Woong Hur, Eung Hwan Kim, Jin Ho Gwon, Sang Hun Lee
  • Antenna device for mobile communication system
    Patent number: 10608331
    Abstract: The present disclosure relates to an antenna device for a mobile communication system, including a reflection plate, a service band separator/coupler and a radome. The reflection plate is configured in a plate shape, multiple radiation elements being mounted on one surface of the reflection plate so as to transmit/receive radio signals. The service band separator/coupler is installed on the other surface of the reflection plate so as to separate/couple the service band of the corresponding antenna device. The radome is configured in the shape of an integrated barrel that surrounds the reflection plate and the service band separator/coupler as a whole.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: March 31, 2020
    Assignee: KMW INC.
    Inventors: Sung-Hwan So, Seong-Man Kang, Eun-Suk Jung, Sang-Hun Lee, Dae-Myung Park
  • IMAGING LENS, AND CAMERA MODULE AND DIGITAL DEVICE COMPRISING SAME
    Publication number: 20200096732
    Abstract: An embodiment provides an imaging lens comprising: a body in which a first opening and a second opening are disposed; a first lens group which is disposed on the body and corresponds to the first opening; and a second lens group which is disposed on the body and corresponds to the second opening, wherein the focal distance of the first lens group is greater than 1.8 times and less than 2.1 times the focal distance of the second lens group.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 26, 2020
    Inventors: SANG HUN LEE, YOUNG WOON KIM
  • VEHICLE AND DC-DC CONVERTER FOR A VEHICLE
    Publication number: 20200094708
    Abstract: A direct current (DC)-DC converter is for a vehicle for converting a first voltage output of a first battery to a second voltage output of a second battery. The DC-DC converter includes a transformer, at least one switch, at least one rectifying diode, and a snubber circuit. The transformer is configured to transform the first voltage to the second voltage. The at least one switch is configured to control a first current input to the transformer from the first battery. The at least one rectifying diode is configured to rectify an alternate current (AC) output from the transformer. The snubber circuit is configured to prevent overvoltage from being applied to the at least one rectifying diode.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Korea University Research and Business Foundation
    Inventors: JinYoung Yang, Taejong Ha, Youngjin Kim, Yong Sin Kim, Sang-hun Lee
  • Apparatus for program management of programmable logic controller
    Patent number: 10579036
    Abstract: An execution code of a user program applicable to a PLC is fitted and arranged to an adequate block among memory blocks of variable sizes, and execution order and position information of each execution code are downloaded to the PLC along with recorded execution table. A CPU module of PLC sequentially executes each execution code randomly arranged on a memory with reference to the execution table. Because an execution code is loaded on a memory block having respectively different sizes such as N, 2N and 4N, utilization of non-use space can be improved over a conventional allocation method of fixed size. An execution table is utilized to discontinuously configure a program execution area, whereby a user program can be easily modified or added during PLC operation.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: March 3, 2020
    Assignee: LSIS CO., LTD.
    Inventor: Sang Hun Lee
  • LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF
    Publication number: 20200064699
    Abstract: An exemplary embodiment of the present inventive concept provides a liquid crystal display, including an upper panel, a lower panel, and a liquid crystal layer disposed between the upper panel and the lower panel, wherein the lower panel may include a lower substrate, a plurality of data lines disposed on the lower substrate, and a plurality of color filters disposed between adjacent data lines of the plurality of data lines, the color filters may include a first color filter, a second color filter, and a third color filter, the first color filter may include a lower layer and an upper layer, and the first color filter may be disposed on the second color filter and the third color filter.
    Type: Application
    Filed: March 20, 2019
    Publication date: February 27, 2020
    Inventors: Hyo Suk PARK, Sae Ron PARK, Ho-Yong SHIN, Jung Hyun AHN, Sang Hun LEE
  • ELECTRONIC DEVICE AND METHOD FOR SHARING SCREEN
    Publication number: 20200057596
    Abstract: A method of an electronic device according to various embodiments of the present disclosure may comprise the operations of: indicating that a first screen related to a first application operating in a background state is being displayed in an external electronic device, connected to the electronic device, on the basis of data transmitted from the electronic device; and displaying an object floating on a second screen being displayed on the electronic device.
    Type: Application
    Filed: February 14, 2018
    Publication date: February 20, 2020
    Inventors: Hyunkyoung KIM, Woonghee PARK, Saetbyeol LEE, Bongkyu KIM, Tae Hyung KIM, Hyung-Jun AHN, Kwang-Yong LEE, Sang-Hun LEE
  • METHOD FOR COMMUNICATING WITH EXTERNAL ELECTRONIC DEVICE AND ELECTRONIC DEVICE SUPPORTING SAME
    Publication number: 20200053417
    Abstract: An electronic device according to various embodiments of the disclosure may include a display, a memory, a communication module, and a processor, wherein the processor establish a channel with the external electronic device according to the Miracast scheme through the communication module, packetizes first data including video data or audio data into a first group, packetizes second data including control image data, which is output to receive a user input in the external electronic device, into a second group separately from the first group, transmits the first group of packets to the external electronic device according to a first communication protocol, and transmits the second group of packets to the external electronic device according to a second communication protocol.
    Type: Application
    Filed: September 29, 2017
    Publication date: February 13, 2020
    Inventors: Yong Ha CHOI, Tae Hyung KIM, Sang Hun LEE, Ji Yoon PARK, Dong Hyun YEOM, Jung Eun LEE
  • Therapeutic effects of NURR1 and FOXA2 in inflammatory neurologic disorders by M1-to-M2 polarization of glial cells
    Patent number: 10555972
    Abstract: A therapeutic effect of Nurr1 and Foxa2 in inflammatory neurologic disorders by M1-to-M2 polarization of glial cells is provided. Specifically, a method of converting glial cells from an M1 phenotype to an M2 phenotype, wherein Nurr1 and Foxa2 are introduced into the glial cells to be overexpressed in the glial cells and a method of preventing or treating an inflammatory neurologic disorder, which includes glial cells into which Nurr1 and Foxa2 are introduced, or a viral vector loaded with Nurr1 and Foxa2, are provided.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: February 11, 2020
    Assignee: INNOPEUTICS CORPORATION
    Inventors: Sang-Hun Lee, Sang-Min Oh
  • Vehicle and DC-DC converter for a vehicle
    Patent number: 10525831
    Abstract: A vehicle includes a first battery configured to output power at a first voltage, a second battery configured to output power at a second voltage, and a direct current (DC)-DC converter configured to convert the first voltage of the first battery to the second voltage and supply power at the second voltage to the second battery. The DC-DC converter includes a transformer, at least one switch, at least one rectifying diode, and a snubber circuit. The transformer is configured to transform the first voltage to the second voltage. The at least one switch is configured to control a first current input to the transformer from the first battery. The at least one rectifying diode is configured to rectify an alternate current (AC) output from the transformer. The snubber circuit is configured to prevent overvoltage from being applied to the at least one rectifying diode.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 7, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Korea University Research and Business Foundation
    Inventors: JinYoung Yang, Taejong Ha, Youngjin Kim, Yong Sin Kim, Sang-hun Lee
  • Optical apparatus
    Patent number: 10520738
    Abstract: Disclosed is an optical apparatus including a display unit, a lens configured to pass an image formed by and transmitted from the display unit, a base configured to accommodate the lens therein, and an adjustment unit configured to move the lens relative to the base so as to adjust a path of light passing through the lens.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: December 31, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Yong Bok Choi, Kwang Il Kim, Eun Sung Seo, Sang Hun Lee
  • Head-mounted display device
    Patent number: 10514538
    Abstract: Disclosed is a head mounted display device, the head mounted display device according to an exemplary embodiment of the present invention may comprise: a prism for changing a path of incident light and then emitting the incident light, the prism having therein a reflection-transmission surface for reflecting or transmitting the incident light; and a camera module of which a lens is disposed in a direction that faces the prism.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: December 24, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sang Hun Lee, Tae Kyung Kim
  • Wearable display device
    Patent number: 10488617
    Abstract: An embodiment of a wearable display device may comprise: a base having a receiving space formed therein; a prism placed in front of an eye of a user, and adjusting the path of light, at least a part of which is incident, to allow a displayed virtual image to arrive at the eye; and a fastening unit for making a part of the prism and a part of the base be fastened to each other, thereby limiting the motion of the prism with respect to the base.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: November 26, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sang Hun Lee, Kwang Il Kim, Yong Bok Choi
  • POWER OSCILLATOR USING GaN POWER AMPLIFIER
    Publication number: 20190356270
    Abstract: A power oscillator using a GaN power amplifier, includes: the GaN power amplifier configured of a gallium nitride (GaN) element to amplify and output power of an input signal; a directional coupler for providing part of an output signal of the GaN power amplifier as a feedback signal; a phase shifter for changing a phase of the feedback signal provided by the directional coupler; and a first isolator for adjusting impedance mismatching generated by the phase shifter and transferring the feedback signal to the GaN power amplifier.
    Type: Application
    Filed: April 19, 2019
    Publication date: November 21, 2019
    Inventor: Sang-Hun LEE