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).

  • Patent number: 10906275
    Abstract: Disclose are a wood sheet and a method for manufacturing the wood sheet. In particular, the real wood sheet is prepared with natural wood sheets used for interior and exterior materials, a binder and a stiffener, thereby providing patterned veneer appearance. Further, the wood sheet may have improved physical properties and reduced weight and be manufactured with reduced cost.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: February 2, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyo Jin Lee, Ho Tak Jeon
  • Publication number: 20210027686
    Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel including a gate line and a data line displays an image based on input image data. The gate driver outputs a gate signal to the gate line. The data driver outputs a data voltage to the data line. The driving controller includes an area divider dividing the input image data into first and second area data, a first variable frequency driver determining a first driving frequency of the first area data based on a flicker value according to a grayscale value and generating a first data signal of the first driving frequency and a second variable frequency driver determining a second driving frequency of the second area data based on a flicker value according to a grayscale value and generating a second data signal of the second driving frequency.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 28, 2021
    Inventors: Jinyoung ROH, HongSoo KIM, Sangan KWON, Sehyuk PARK, Hyo Jin LEE
  • Publication number: 20210020113
    Abstract: A method of driving a display panel includes dividing an input image into a plurality of segments, generating a flicker value of a segment of the plurality of segments, determining whether to compensate the flicker value of the segment or not according to a segment size, compensating the flicker value of the segment based on the segment size, determining a frame rate of the display panel based on the flicker value of the segment and outputting a data voltage to the display panel in the frame rate. The flicker value of the segment is compensated based on the flicker value of the segment and flicker values of segments that are adjacent to the segment.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 21, 2021
    Inventors: Sehyuk PARK, Sangan KWON, HongSoo KIM, Jinyoung ROH, Hyo Jin LEE
  • Patent number: 10896645
    Abstract: A foldable display device according to example embodiments includes a flexible display panel including a first display area having at least partially foldable area and a second display area not having the foldable area, a folding sensor in the first display area configured to detect a folding status of the flexible display panel and output a detecting signal which includes the folding status of the flexible display panel, a scan driver configured to sequentially provide scan signals to at least a part of a plurality of scan lines based on the detecting signal, a data driver configured to provide data signals to the flexible display panel based on the detecting signal, and a timing controller configured to convert input image data into corrected image data based on the detecting signal and control the scan driver and the data driver.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: January 19, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Jun Lee, Hyo-Jin Lee, Hui Nam, Myung-Ho Lee
  • Publication number: 20210005130
    Abstract: A display driver includes a still image detector configured to receive a compressed image bitstream at an input frame frequency from a host processor, and to detect a still image by comparing the compressed image bitstream of a current frame and the compressed image bitstream of a previous frame, a driving frequency changer configured to output the compressed image bitstream at a first output frame frequency equal to the input frame frequency when the still image is not detected, and to output the compressed image bitstream at a second output frame frequency lower than the input frame frequency when the still image is detected, and a decoder configured to generate original image data at the first output frame frequency and the second output frame frequency.
    Type: Application
    Filed: March 24, 2020
    Publication date: January 7, 2021
    Inventors: Jinyoung ROH, Sangan KWON, Sehyuk PARK, Hyo Jin LEE, HongSoo KIM, Sukhun LEE
  • Publication number: 20200410942
    Abstract: A display device includes display device includes: a display panel including a plurality of pixels; a data driver configured to generate data voltages based on output image data, and to provide the data voltages to the plurality of pixels; and a controller configured to receive input image data and input frequency information from a host processor, and to provide the output image data to the data driver, wherein the controller includes an adaptive refresh block configured to: determine a target frequency by analyzing the input image data; determine a masking ratio based on an input frequency represented by the input frequency information and the target frequency; and selectively output the input image data as the output image data by performing a masking operation on the input image data with the masking ratio.
    Type: Application
    Filed: March 19, 2020
    Publication date: December 31, 2020
    Inventors: HongSoo KIM, Sehyuk PARK, Hyo Jin LEE, Sangan KWON, Jinyoung ROH, Sukhun LEE, Jun Heyung JUNG
  • Patent number: 10872563
    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: Grant
    Filed: March 21, 2019
    Date of Patent: December 22, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sehyuk Park, Hyo Jin Lee, Hui Nam
  • Patent number: 10859917
    Abstract: The present disclosure relates to a photoresist stripper composition for manufacturing an LCD, and relates to an integrated photoresist stripper composition capable of being used in all processes for manufacturing a TFT-LCD. More specifically, the present disclosure relates to an aqueous photoresist stripper composition capable of being used in all of transition metal, potential metal and oxide semiconductor wires.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 8, 2020
    Assignee: LTC CO., LTD.
    Inventors: Ho-Sung Choi, Kwang-Hyun Ryu, Jong-Il Bae, Jong-Soon Lee, Sang-Ku Ha, Hye-Sung Yang, Mi-Yeon Han, Hyo-Jin Lee
  • Publication number: 20200372853
    Abstract: A display device includes a display unit. The display unit includes a first display area and a second display area. A first scan line, a first power line, and first pixels connected to the first scan line and the first power line are in the first display area. A second scan line, a second power line, and second pixels connected to the second scan line and the second power line are in the second display area. A scan driver is configured to sequentially provide a scan signal to the first scan line and the second scan line. A power supply is configured to provide a power source voltage that is varied independently to the first power line and the second power line.
    Type: Application
    Filed: February 18, 2020
    Publication date: November 26, 2020
    Inventors: Se Hyuk PARK, Hyo Jin LEE, Sang An KWON, Jin Young ROH
  • Patent number: 10845654
    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: Grant
    Filed: September 21, 2018
    Date of Patent: November 24, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jung Sun You, Dong Ho Ko, Hyo Jin Lee, In Ju Mun, Nam Gyu Kim, Hyun Jun Lee
  • Patent number: 10841824
    Abstract: A method of transmitting channel state information. The method includes receiving, from a base station, channel measurement information comprising a plurality of antenna ports to be measured for a serving cell; measuring signals related to the plurality of antenna ports based on the channel measurement information; transmitting reference signal received power (RSRP) information for the plurality of antenna ports based on the measured signals; receiving, from the base station, in response to transmission of the RSRP information, channel state information (CSI) report instruction information for a candidate of a distributed antenna port set including at least one antenna port; measuring a channel state of the at least one antenna port in the candidate; and transmitting the measured channel state to the base station, wherein the candidate of the distributed antenna port set among the plurality of antenna ports is determined based on the RSRP information by the base station.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 17, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Young Bum Kim, Youn Sun Kim, Ju Ho Lee, Jin Kyu Han, Joon Young Cho, Hyo Jin Lee
  • Publication number: 20200349879
    Abstract: A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; and a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a driving mode of the display apparatus to one of a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data, wherein the driving controller is configured to determine the driving frequency of the display panel using a flicker value varied according to a grayscale value of the input image data and a luminance setting value.
    Type: Application
    Filed: April 9, 2020
    Publication date: November 5, 2020
    Inventors: Sehyuk PARK, Hyo Jin LEE, Sangan KWON, Jinyoung ROH
  • Publication number: 20200349893
    Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.
    Type: Application
    Filed: February 25, 2020
    Publication date: November 5, 2020
    Inventors: HYO JIN LEE, Sangan Kwon, Hui Nam, Jinyoung Roh, Sehyuk Park
  • Publication number: 20200350389
    Abstract: A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data; and a touch driver configured to detect a touch event occurring on the display panel, and to output a touch interrupt signal representing the touch event to the driving controller.
    Type: Application
    Filed: April 8, 2020
    Publication date: November 5, 2020
    Inventors: Hyo Jin LEE, Jinyoung ROH, Sehyuk PARK, Sangan KWON, Hui NAM
  • Publication number: 20200332592
    Abstract: A method for producing a smart window and the smart window are provided. The method provides the smart window having product quality and productivity by improving evenness of a seal line, for example, a thickness deviation, a line width deviation and straightness through selection of a suitable sealant and process optimization.
    Type: Application
    Filed: November 8, 2018
    Publication date: October 22, 2020
    Applicant: LG Chem, Ltd.
    Inventors: In Ju Mun, Nam Gyu Kim, Hyo Jin Lee, Kyung Ki Hong
  • Patent number: 10799912
    Abstract: Disclosed are a multilayer coating film made from a natural material and a method of producing the same. The multilayer coating film may be produced by forming a multilayer coating film through formation of a color coating film for providing adhesion and color to a cork on the cork material and a clear coating film for realizing texture and supplementing properties on the color coating film. As such, the multilayer coating film may be made from a natural material to diversify the color and gloss of cork as a natural material, to additionally increase marketability of an interior material and provide various appearance, to prevent discoloration due to light (e.g. UV light.) and water permeation, and to enhance durability against abrasion, scratches and the like.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 13, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Noroo Bee Chemical Co., Ltd.
    Inventors: Ho Tak Jeon, Hyo Jin Lee, Young Seok Kim, Yong Chul Lee, Jae Beom Ahn
  • Publication number: 20200322935
    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: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Youn-Sun KIM, Ki-Il KIM, Ju-Ho LEE, Hyo-Jin LEE, Joon-Young CHO
  • Publication number: 20200294451
    Abstract: A method of driving a pixel including: during a first period of a first frame, applying a first scan signal having a turn-on level to the first scan line, applying a data voltage to a data line, and applying a second scan signal having the turn-on level to the second scan line; and during a second period of a second frame, applying the first scan signal having the turn-on level to the first scan line, applying a bias voltage to the data line, and applying the second scan signal having a turn-off level to the second scan line, the second frame is a frame subsequent to the first frame, the second period is longer than the first period, and a light-emitting diode emits light at luminance based on the data voltage during at least a portion of the first frame and at least a portion of the second frame.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Inventors: Ji Woong Kim, Oh Jo Kwon, Hyo Jin Lee, Se Hyuk Park
  • Patent number: 10770001
    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: Grant
    Filed: August 15, 2019
    Date of Patent: September 8, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyuk Park, Hui Nam, Hyo Jin Lee
  • Publication number: 20200234632
    Abstract: A pixel includes: a first transistor configured to 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: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Inventors: Hyo Jin Lee, Se Hyuk Park