Patents by Inventor Hyo Jin Lee

Hyo Jin 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).

  • Publication number: 20200225520
    Abstract: A method for manufacturing an optical device and an optical device is provided. The manufacturing method is capable of minimizing or eliminating dotting unevenness that may occur when an optical device is manufactured by a dotting process. In particular, even when a large cell gap is present or a polymer substrate is applied as a substrate so that high-temperature heat treatment is impossible, such method of the present application can provide an alignment film having improved orientation by improving the dotting unevenness.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jung Sun You, Dong Ho Ko, Hyo Jin Lee, In Ju Mun, Nam Gyu Kim, Hyun Jun Lee
  • Patent number: 10694512
    Abstract: The present disclosure relates to a method of providing a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates Beyond 4th-Generation (4G) communication system, such as Long Term Evolution (LTE). The method includes receiving configuration information comprising at least one information element indicating transmission resources for the reference signals, receiving downlink control information indicating that a transmission of at least one of the reference signals is activated, and receiving the at least one of the reference signals based on the configuration information, in response to receiving the downlink control information.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 23, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn-Sun Kim, Ki-Il Kim, Ju-Ho Lee, Hyo-Jin Lee, Joon-Young Cho
  • Patent number: 10656480
    Abstract: A transmittance-variable film and the use thereof are provided. The transmittance-variable film can be useful in switching between a clear state and a dark state and reducing a difference in contrast ratio between left and right viewing angles, thereby securing excellent bilateral symmetry. Such a transmittance-variable film can be applied to various applications including various materials for buildings or vehicles requiring the control of transmissivity, or eyewear such as goggles for sports or experiencing augmented realities, sunglasses, helmets, etc.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: May 19, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Dong Hyun Oh, Jung Sun You, Eun Jung Lim, In Ju Mun, Kyung Ki Hong, Kum Suek Seo, Hyo Jin Lee
  • Patent number: 10631286
    Abstract: An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: April 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Jin Lee, Youn-Sun Kim, Ki-Il Kim, Hyoung-Ju Ji, Joon-Young Cho, Ju-Ho Lee
  • Publication number: 20200111418
    Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver outputs a data write gate signal having a corresponding active level and a data initialization gate signal having a corresponding active level to the pixel in a writing frame, outputs the data write gate signal not having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a holding frame and outputs the data write gate signal having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a writing compensation frame. The data driver outputs a data voltage to the pixel. The emission driver outputs an emission signal to the pixel.
    Type: Application
    Filed: September 23, 2019
    Publication date: April 9, 2020
    Inventors: Hui NAM, Hyo Jin LEE, Jinyoung ROH, Sehyuk PARK
  • Patent number: 10614761
    Abstract: A pixel includes: a first transistor configured generate a driving current corresponding to a data signal transmitted from a corresponding data line; a first light emitting diode (LED) including a cathode connected to a first power supply line and an anode connected to a second power supply line, and configured to emit light by the driving current; a second light emitting diode (LED) including a cathode connected to the second power supply line and an anode connected to the first power supply line, and configured to emit light by the driving current; a second transistor connected to the anode of the first light emitting diode (LED), and configured to transmit the driving current to the first light emitting diode (LED); and a third transistor connected to the anode of the second light emitting diode (LED), and configured to transmit the driving current to the second light emitting diode (LED.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: April 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyo Jin Lee, Se Hyuk Park
  • Publication number: 20200105198
    Abstract: A flicker quantification system includes a display device driven in units of reference periods having a first frame for writing data and at least one second frame for holding data. A luminance measurer generates luminance data by measuring a luminance of a display during the reference period. A voltage measurer measures a voltage of a photo sensor corresponding to light emitted. First voltage data representing an accumulation amount of voltage during the first frame and second voltage data representing an accumulation amount of voltage during the at least one second frame is generated. A processor calculates a flicker index value representing a ratio of a measured luminance difference to a just noticeable difference, based on the luminance data, the first voltage data, and the second voltage data. The measured luminance difference may represent the difference between a luminance during the first frame and a luminance during the second frame.
    Type: Application
    Filed: August 15, 2019
    Publication date: April 2, 2020
    Inventors: Se Hyuk PARK, Hui NAM, Hyo Jin LEE
  • Publication number: 20200106562
    Abstract: Methods and apparatuses are provided in a wireless communication system in which configuration information for at least one subband for the terminal is received from a base station via higher layer signaling. Information indicating an active subband among the at least one subband is received from the base station. The active subband is identified based on the information. Control information or data is received from the base station in the active subband, The at least one subband is within a downlink transmission bandwidth.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Inventors: Seung-Hoon CHOI, Young-Bum KIM, Hyo-Jin LEE, Jin-Young OH, Dong-Han KIM, Ju-Ho LEE, Youn-Sun KIM, Hyoung-Ju JI, Hee-Don GHA, Tae-Han BAE, Jeong-ho YEO, Young-Woo KWAK, Hoon-Dong NOH, Cheol-Kyu SHIN
  • Publication number: 20200106561
    Abstract: Methods and apparatuses are provided in a wireless communication system in which DCI is received from a base station and includes a subband indicator indicating a subband among at least one subband configured for the terminal as an active subband and information indicating at least one frequency resource allocated for a PDSCH within the active subband. The active subband is identified based on the subband indicator. The PDSCH is received from the base station in the active subband based on the information. A size of the DCI is configured based on a size of the active subband.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Inventors: Seung-Hoon CHOI, Young-Bum KIM, Hyo-Jin LEE, Jin-Young OH, Dong-Han KIM, Ju-Ho LEE, Youn-Sun KIM, Hyoung-Ju JI, Hee-Don GHA, Tae-Han BAE, Jeong-Ho YEO, Young-Woo KWAK, Hoon-Dong NOH, Cheol-Kyu SHIN
  • Publication number: 20200096807
    Abstract: A light modulation device is disclosed herein. In some embodiments, a light modulation device includes a first polymer film substrate, a second polymer film substrate, an active liquid crystal layer disposed between the first and second polymer film substrates, wherein the active liquid crystal layer is capable of switching between a vertical orientation state and a twisting orientation state upon application of a voltage, each of the first and second polymer film substrates has an in-plane retardation of 4,000 nm or more for light having a wavelength of 550 nm, a ratio of an elongation (E1) in a first direction to an elongation (E2) in a second direction perpendicular to the first direction of 3 or more, and wherein an angle formed by the first directions of the first and second polymer film substrates is in a range of 0 degrees to 10 degrees.
    Type: Application
    Filed: April 30, 2018
    Publication date: March 26, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Min Jun Gim, Eun Jung Lim, Jung Sun You, Hyun Jun Lee, In Ju Mun, Dong Hyun Oh, Nam Gyu Kim, Jin Hong Kim, Hyo Jin Lee, Nam Hun Kim
  • Publication number: 20200077372
    Abstract: An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Inventors: Hyo-Jin LEE, Youn-Sun KIM, Ki-Il KIM, Hyoung-Ju JI, Joon-Young CHO, Ju-Ho LEE
  • Patent number: 10536938
    Abstract: An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: January 14, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Jin Lee, Youn-Sun Kim, Ki-Il Kim, Hyoung-Ju Ji, Joon-Young Cho, Ju-Ho Lee
  • Patent number: 10536242
    Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transfer rate beyond a 4G communication system such as LTE. According to the present disclosure, there is provided a method for supporting repetitive transmission of uplink data by a base station in a mobile communication system operating in a time division duplex (TDD) based cell including at least one subframe for uplink transmission and at least one subframe for downlink transmission comprising repeatedly transmitting uplink data scheduling information in a downlink subframe where an uplink hybrid automatic repeat request (HARQ) process is defined and repeatedly receiving uplink data in uplink subframes which start from an uplink subframe according to an HARQ transmission timing of an HARQ process defined in a downlink subframe where the repetitive transmitting of the uplink data scheduling information is complete.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: January 14, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seung-Hoon Choi, Young-Bum Kim, Hyo-Jin Lee, Jin-Young Oh, Dong-Han Kim, Ju-Ho Lee, Youn-Sun Kim, Hyoung-Ju Ji, Hee-Don Gha, Tae-Han Bae, Jeong-Ho Yeo, Young-Woo Kwak, Hoon-Dong Noh, Cheol-Kyu Shin
  • Publication number: 20190378458
    Abstract: A driving device includes: an output unit configured to supply a first voltage, or a second voltage lower than the first voltage, to an output terminal in response to a voltage of a first node and a voltage of a second node; a first driver configured to control the voltage of the second node in response to a signal of a first input terminal and a signal of a second input terminal; a second driver configured to control the voltage of the first node in response to a voltage of a third input terminal and the voltage of the second node; and a first transistor configured to apply a third voltage lower than the first voltage to the first node or the second node.
    Type: Application
    Filed: March 12, 2019
    Publication date: December 12, 2019
    Inventors: Hyo Jin LEE, Hui NAM, Se Hyuk PARK
  • Patent number: 10497306
    Abstract: A flexible display apparatus comprises: a display panel having first and second bending areas bendable at first and second angles along a bending line, first and second display areas extending from the first and second bending areas; a first sensor unit which generates a first sensing signal by measuring the degree of deformation of at least one of the first and second bending areas; a second sensor unit which generates a second sensing signal by measuring the first angle; a third sensor unit which generates a third sensing signal by measuring the second angle; and a controller which receives the first through third sensing signals, determines one of the first and second display areas to be a main viewing area based on the first through third sensing signals, and adjusts a display state of the main viewing area.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: December 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyo Jin Lee
  • Patent number: 10492195
    Abstract: An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: November 26, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Jin Lee, Youn-Sun Kim, Ki-Il Kim, Hyoung-Ju Ji, Joon-Young Cho, Ju-Ho Lee
  • Publication number: 20190340977
    Abstract: A display apparatus includes a display panel, a gate driver, a data driver, and an emission driver. The display panel includes a pixel. The pixel includes a switching element of a first type and a switching element of a second type different from the first type. The gate driver is configured to output a gate signal to the display panel. The data driver is configured to output a data voltage to the display panel. The emission driver is configured to output an emission signal. The emission signal comprises a length of an emission off duration of a writing frame in which data is written to the pixel and a length of an emission off duration of a holding frame in which the data written to the pixel is maintained in a low frequency driving mode. The length of the emission off duration of the holding frame is different from the length of the emission off duration of the writing frame in the low frequency driving mode.
    Type: Application
    Filed: March 21, 2019
    Publication date: November 7, 2019
    Inventors: Sehyuk PARK, Hyo Jin LEE, Hui Nam
  • Patent number: 10469134
    Abstract: A feedback method and apparatus are provided for Cooperative Multi-Point (CoMP) communication in a communication system. The method includes checking a number of feedback allocations configured by Radio Resource Control (RRC) signaling, determining a number of bits of an aperiodic feedback indicator based on the checked number of feedback allocations, receiving Downlink Control Information (DCI) including the aperiodic feedback indicator, interpreting the aperiodic feedback indicator, based on the determined number of bits of the aperiodic feedback indicator, and performing aperiodic feedback of at least one feedback allocation, based on the aperiodic feedback indicator.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: November 5, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ki-Il Kim, Hyo-Jin Lee, Youn-Sun Kim, Young-Bum Kim, Hyoung-Ju Ji, Seung-Hoon Choi
  • Patent number: 10411768
    Abstract: A feedback information transmission/reception method for use in a mobile communication system is provided. The feedback information transmission method includes receiving configuration information on at least two reference signals and feedback configuration information for use in generating feedback information based on the at least two reference signals from a base station, receiving the at least two reference signals from the base station, measuring the at least two reference signals received, generating the feedback information based on the measurement result according to the feedback configuration information, and transmitting the feedback information to the base station.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: September 10, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Jin Lee, Youn Sun Kim, Ju Ho Lee, Young Bum Kim, Hyoung Ju Ji
  • Patent number: 10396958
    Abstract: The present invention relates to a method and device for transmitting and receiving CSI (Channel State Information). A CSI transmission method at a CoMP (Coordinated Multi-Point) device includes steps of receiving a CSI-RS (Reference Signal) from a plurality of transmission points, acquiring an optimal phase difference value causing an optimal channel quality between the plurality of transmission points, based on the CSI-RS, acquiring a CQI (Channel Quality Indicator), based on the optimal phase difference value, and transmitting the CSI including the CQI. According to an embodiment of the present invention, efficient CSI transmission/reception method and device can be provided in a CoMP system.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: August 27, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Jin Lee, Youn Sun Kim, Ki Il Kim, Ju Ho Lee, Joon Young Cho