Patents by Inventor Kook Kwak

Kook Kwak 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).

  • Patent number: 11950501
    Abstract: An organic light emitting device including: a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode and including an emission layer, wherein one of the first electrode and the second electrode is a reflective electrode and the other is a semitransparent or transparent electrode, and wherein the organic layer includes a layer having at least one of the compounds having at least one carbazole group, and a flat panel display device including the organic light emitting device. The organic light emitting device has low driving voltage, excellent current density, high brightness, excellent color purity, high efficiency, and long lifetime.
    Type: Grant
    Filed: October 18, 2022
    Date of Patent: April 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee, Min-Seung Chun
  • Patent number: 11785753
    Abstract: A display device includes a flexible display portion, a case which accommodates the display portion, and a blocking layer which is disposed between the display portion and the case. The blocking layer includes a plurality of nanolines.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: October 10, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Ho Park, Gyung-Kook Kwak, Jeong Il Yoo, Sung Chul Choi
  • Publication number: 20220104405
    Abstract: A display device includes a flexible display portion, a case which accommodates the display portion, and a blocking layer which is disposed between the display portion and the case. The blocking layer includes a plurality of nanolines.
    Type: Application
    Filed: July 15, 2021
    Publication date: March 31, 2022
    Inventors: Jung Ho PARK, Gyung-Kook KWAK, Jeong Il YOO, Sung Chul CHOI
  • Patent number: 10175843
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a display substrate, an encapsulation substrate formed over the display substrate, and a window formed over the encapsulation substrate, wherein the window includes a surface facing the display substrate. The OLED display further includes a contact sensing layer formed on the surface of the window and a touch driver formed on the surface of the window and electrically connected to the contact sensing layer, wherein the touch driver is configured to drive the touch sensing layer.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: January 8, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gyung-Kook Kwak, Jang-Youp Shim
  • Publication number: 20180196555
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a display substrate, an encapsulation substrate formed over the display substrate, and a window formed over the encapsulation substrate, wherein the window includes a surface facing the display substrate. The OLED display further includes a contact sensing layer formed on the surface of the window and a touch driver formed on the surface of the window and electrically connected to the contact sensing layer, wherein the touch driver is configured to drive the touch sensing layer.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Inventors: Gyung-Kook Kwak, Jang-Youp Shim
  • Patent number: 9921708
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a display substrate, an encapsulation substrate formed over the display substrate, and a window formed over the encapsulation substrate, wherein the window includes a surface facing the display substrate. The OLED display further includes a contact sensing layer formed on the surface of the window and a touch driver formed on the surface of the window and electrically connected to the contact sensing layer, wherein the touch driver is configured to drive the touch sensing layer.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: March 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gyung-Kook Kwak, Jang-Youp Shim
  • Patent number: 9454038
    Abstract: A display device includes a bottom chassis, a backlight unit accommodated in the bottom chassis, a display panel above the backlight unit, and an adhesive sheet between the backlight unit and the display panel. The display panel is attached to the bottom chassis through the adhesive sheet.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Hyun Jeon, Gyung-Kook Kwak
  • Publication number: 20150224221
    Abstract: This disclosure relates to microspheres emboli and method of making them. The recoverability of lyophilized microspheres is optimized by adding trehalose prior to lyophilization of the microspheres and vortexing the lyophilized microspheres. The optimization can be useful in maintaining physical properties, shapes, and the drug release level of the microspheres for emboli. Chitosan microspheres can be useful in stably causing emboli in blood vessels, and precisely adjusting the release of a drug, and thus can be used in anticancer treatment.
    Type: Application
    Filed: August 30, 2013
    Publication date: August 13, 2015
    Applicant: CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jae Hwi Lee, Byung Kook Kwak, Hyeong Min Kim, Ga Hyeon Lee
  • Publication number: 20150170575
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a display substrate, an encapsulation substrate formed over the display substrate, and a window formed over the encapsulation substrate, wherein the window includes a surface facing the display substrate. The OLED display further includes a contact sensing layer formed on the surface of the window and a touch driver formed on the surface of the window and electrically connected to the contact sensing layer, wherein the touch driver is configured to drive the touch sensing layer.
    Type: Application
    Filed: August 1, 2014
    Publication date: June 18, 2015
    Inventors: Gyung-Kook KWAK, Jang-Youp SHIM
  • Patent number: 9047837
    Abstract: A liquid crystal display device (LCD), and a method of driving the LCD. The LCD includes: a display panel including a plurality of pixels defined as a plurality of gate lines and a plurality of data lines cross each other, wherein a storage capacitor of each of the plurality of pixels is connected to a front or rear gate line; a gate driver for generating a gate-on voltage by boosting a first input voltage in multi-stages, the gate-on voltage turns on a switching device of each of the plurality of pixels, and a gate-off voltage that turns off the switching device, and sequentially applying the gate-on voltage and the gate-off voltage to the plurality of gate lines; and a source driver for applying a data voltage to a data line connected to a pixel whose switching device is turned on.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: June 2, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Doo-In Nam, Yong-Joo Kim, Gyung-Kook Kwak
  • Publication number: 20150085471
    Abstract: A display device includes a bottom chassis, a backlight unit accommodated in the bottom chassis, a display panel above the backlight unit, and an adhesive sheet between the backlight unit and the display panel. The display panel is attached to the bottom chassis through the adhesive sheet.
    Type: Application
    Filed: June 23, 2014
    Publication date: March 26, 2015
    Inventors: Sang-Hyun JEON, Gyung-Kook KWAK
  • Publication number: 20140139132
    Abstract: An inspecting apparatus includes a power supply unit that generates a power supply voltage and that outputs a generated power supply voltage, and a connecting unit for connecting to a connector of a display module. The connecting unit includes a first terminal from which the power supply voltage is output and a second terminal to which a feedback voltage is input from the display module, and the power supply unit controls the power supply voltage based on the feedback voltage.
    Type: Application
    Filed: June 20, 2013
    Publication date: May 22, 2014
    Inventor: Gyung-Kook KWAK
  • Publication number: 20120188213
    Abstract: A liquid crystal display device (LCD), and a method of driving the LCD. The LCD includes: a display panel including a plurality of pixels defined as a plurality of gate lines and a plurality of data lines cross each other, wherein a storage capacitor of each of the plurality of pixels is connected to a front or rear gate line; a gate driver for generating a gate-on voltage by boosting a first input voltage in multi-stages, the gate-on voltage turns on a switching device of each of the plurality of pixels, and a gate-off voltage that turns off the switching device, and sequentially applying the gate-on voltage and the gate-off voltage to the plurality of gate lines; and a source driver for applying a data voltage to a data line connected to a pixel whose switching device is turned on.
    Type: Application
    Filed: October 25, 2011
    Publication date: July 26, 2012
    Inventors: Doo-In NAM, Yong-Joo Kim, Gyung-Kook Kwak
  • Publication number: 20080089408
    Abstract: A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying out the slicer prediction, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 17, 2008
    Inventors: In Hwan Choi, Young Mo Gu, Kyung Won Kang, Kook Kwak
  • Publication number: 20080089407
    Abstract: A digital television (DTV) transmitting system includes a first frame decoder, a second frame decoder, and a frame multiplexer. The first frame decoder forms first enhanced data frames, encodes each data frame for error correction, forms a first super frame by combining the encoded first frames, and interleaves the first super frame. The second frame decoder forms second enhanced data frames, encodes each data frame for error correction, forms a second super frame by combining the encoded second frames, and interleaves the second super frame. The frame multiplexer multiplexes the interleaved first and second enhanced data frames.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 17, 2008
    Inventors: Jin Woo Kim, In Choi, Kook Kwak, Jong Kim, Won Song, Hyoung Lee, Byoung Kim
  • Publication number: 20080056388
    Abstract: Disclosed is a digital television system carrying out modulation/demodulation by VSB (vestigial side band). A VSB transmitter includes an additional error correction encoder designed in a manner that a signal mapping of a TCM encoder is considered, a multiplexer (MUX), a TCM encoder operating in a manner corresponding to state transition processes of the additional error correction encoder, and a signal transmission part including an RF converter. And, A VSB receiver includes a signal receiver part receiving a signal transmitted from the transmitter, a TCM decoder, a signal processing part including a derandomizer, and an additional error correction decoder part.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 6, 2008
    Inventors: In CHOI, Young Gu, Kyung KANG, Kook KWAK
  • Publication number: 20080059866
    Abstract: A digital television transmitting system includes a pre-processor, a packet generator, an RS encoder, and a trellis encoder. The pre-processor pre-processes enhanced data by coding the enhanced data for first forward error correction and expanding the FEC-coded enhanced data. The packet generator generates enhanced data packets including the pre-processed enhanced data and main data packets and multiplexes the enhanced and main data packets. Each enhanced data packet includes an adaptation field in which the pre-processed enhanced data are inserted. The RS encoder performs RS encoding on the multiplexed data packets for second forward error correction, and the trellis encoder performs trellis encoding on the RS-coded data packets.
    Type: Application
    Filed: June 18, 2007
    Publication date: March 6, 2008
    Inventors: Won Song, In Choi, Kook Kwak, Byoung Kim, Jin Kim, Hyoung Lee, Jong Kim
  • Publication number: 20080049842
    Abstract: A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying out the slicer prediction, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.
    Type: Application
    Filed: October 30, 2007
    Publication date: February 28, 2008
    Inventors: In Hwan Choi, Young Mo Gu, Kyung Won Kang, Kook Kwak
  • Publication number: 20080049874
    Abstract: A VSB reception system includes a sequence generator for decoding a symbol corresponding to the supplemental data and generating a predefined sequence included in the supplemental data at VSB transmission system. The reception system also includes a modified legacy VSB receiver for processing the data received from the VSB transmission system in a reverse order of the VSB transmission system by using the sequence, and a demultiplexer for demultiplexing the data from the modified legacy VSB receiver into the MPEG data and the supplemental data. The VSB reception system also includes a supplemental data processor for processing the supplemental data segment from the demultiplexer in a reverse order of the transmission system, to obtain the supplemental data, thereby carrying out the slicer prediction, decoding, and symbol decision more accurately by using the predefined sequence, to improve a performance.
    Type: Application
    Filed: October 31, 2007
    Publication date: February 28, 2008
    Inventors: In Hwan Choi, Young Gu, Kyung Kang, Kook Kwak
  • Publication number: 20080013616
    Abstract: A channel equalizer includes a channel estimator, a coefficient calculator, a multiplier, and an error remover. The channel estimator estimates a channel impulse response (CIR) of input data in which a known data sequence is periodically inserted. The coefficient calculator calculates equalization coefficients using estimated CIR, and the multiplier multiplies the input data with the equalization coefficients for channel equalization. The error removes estimates a residual carrier phase error of the channel-equalized input data and removes the estimated phase error from the input data.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 17, 2008
    Inventors: Jong Kim, In Choi, Kook Kwak, Byoung Kim, Won Song, Jin Kim, Hyoung Lee