Patents by Inventor Hoon Jeon

Hoon Jeon 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).

  • Method of displaying an image, display apparatus performing the same, method and apparatus of calculating a correction value applied to the same
    Patent number: 9196222
    Abstract: A method of displaying an image on a display panel having a plurality of pixels arranged as rows and columns includes calculating a row correction value corresponding to a pixel position of a received data based on an average luminance of pixels in a pixel row of a sample-grayscale image, calculating a column correction value corresponding to the pixel position of the received data based on an average luminance of pixels in a pixel column of the sample-grayscale image, generating correction data for the received data using a row correction value and a column correction value corresponding to a pixel position of the received data, and converting the correction data to a data voltage to provide a data line of the display panel with the data voltage.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 24, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hoi-Sik Moon, Min-Kyu Park, Jee-Hoon Jeon, Sung-Goon Jung, Young-Suk Ha
  • Method of driving display panel and display apparatus for performing the same
    Patent number: 9183809
    Abstract: A display panel apparatus includes a display panel and a timing controller, and a data driver. The display panel includes a first subpixel and a second subpixel. The timing controller is configured to receive a first subpixel data for the first subpixel and a second subpixel data for the second subpixel. When the second subpixel is determined to be defective, the timing controller generates a compensated grayscale of the second subpixel data. The data driver is configured to apply a precharge voltage to the second subpixel and a charging voltage to second subpixel through a data line, wherein the precharge voltage is based on a grayscale of the first subpixel data and the charging voltage is based on the compensated grayscale of the second subpixel data.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: November 10, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Won Jeong, Woo-Jin Jung, Kang-Hyun Kim, Po-Yun Park, Kwan-Young Oh, Jee-Hoon Jeon, Youn-Jin Jung, Young-Suk Ha
  • Organic light emitting diode display device with data modulator and a method for driving the same
    Patent number: 9153160
    Abstract: An organic light emitting diode (OLED) display device and a method for driving the same, are capable of achieving an enhancement in response characteristics of OLEDs and an enhancement in display picture quality through application of an overdriving (or accelerated driving) method taking into consideration intrinsic response characteristics of OLEDs. The OLED display device includes an image display panel including a plurality of pixel regions, and a driving integrated circuit for converting digital image data into an analog image signal, generating a plurality of gamma voltage levels through modulation, for overdriving or accelerated driving of the analog image signal, and modulating gray levels of the digital image data such that the modulated gray levels correspond to the modulated gamma voltage levels, for display of an image according to the modulated image data on the image display panel.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: October 6, 2015
    Assignees: LG DISPLAY CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION OF KYUNGHEE UNIVERSITY
    Inventors: Soon-Kwang Hong, Chang-Hoon Jeon, Keun-Choul Kim, Byung-Hwee Park, Seung-Woo Lee, Jong-Bin Kim, Min-Koo Kim
  • Flexible display device and method of manufacturing the same
    Patent number: 9136487
    Abstract: A flexible display device is discussed. The flexible display device according to an embodiment includes an insulating and flexible substrate on which an adhesive layer is formed, a support layer adhered to the substrate via the adhesive layer, a cell array formed above the support layer, defining a plurality of pixel regions, and including a ground line connected to a ground voltage source of an external circuit, a light emitting array including a plurality of light emitting structures formed on the cell array, a sealing layer formed on the cell array, and a buffer layer, a shielding layer, and a bottom insulating layer formed between the support layer and the cell array. The light emitting array emits light toward the sealing layer, and the ground line is connected to the shielding layer through a contact hole to partially expose the shielding layer.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: September 15, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Chul Nam, Chang-Hoon Jeon
  • TILT AND TURN WINDOW SYSTEM HAVING DAMPER
    Publication number: 20150233170
    Abstract: Disclosed is a tilt and turn window system having a damper, which can prevent each corner portion of a window frame from being damaged by shock generated when a window is closed on the window frame in a super high-rise building to which high wind pressure is applied. To this end, the T-T (Tilt & Turn) window system having a damper, includes a window frame; a window which is coupled to the window frame so as to be closed and opened in a T-T manner; and a damper which is disposed at at least one side of the window frame so as to be contacted with a surface of the window.
    Type: Application
    Filed: January 28, 2013
    Publication date: August 20, 2015
    Inventors: Bo Ra Nam, Byung Hoon Jeon
  • PROBE CARD AND TEST SYSTEM INCLUDING THE SAME
    Publication number: 20150219688
    Abstract: A probe card for testing electrical properties of a device under test (DUT) includes a plurality of semiconductor devices, which includes a substrate; and at least one transmission antenna, which is implemented as a chip on film (COF) type and attached to the substrate, wirelessly transmitting at least one of electric power and data to each of the plurality of semiconductor devices.
    Type: Application
    Filed: December 18, 2014
    Publication date: August 6, 2015
    Inventors: Kyoung-hoon JEON, Yo-jong KIM, Kyu-jeong LEE, Il-kyo JEONG
  • Connector
    Patent number: 9097862
    Abstract: A connector 100 comprises an optical module which has an optical element which is mounted on a mounting surface of a circuit board, said mounting surface being vertical to a connection direction of said connector and an optical waveguide member 140 which has a clad part 142 and a core part 143 which is formed inside of the clad part 142, the optical waveguide member 140 being provided with a first end face 144 which is arranged facing the mounting surface of the circuit board 131 and a second end face 145 at an opposite side to the first end face 144, the core part 143 being formed so as to propagate light between an optical fiber 241 which is supported by another connector 200 which is arranged facing the second end face 145 and the optical element 132.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: August 4, 2015
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Tetsugaku Tanaka, Osamu Daikuhara, Manabu Shimizu, Toshihiro Kusagaya, Byung Hoon Jeon
  • DISPLAY DEVICE AND INTEGRATED CIRCUIT CHIP
    Publication number: 20150206276
    Abstract: A display device is disclosed. The display device includes: a plurality of pixels; a memory storing a lookup table including compensation values for pixels at specific locations of the display. The lookup table also stores compensation values obtained by a bilinear compensation method. The display also includes a data compensator calculating the compensation values corresponding to a location where an image signal is displayed using the compensation values and substitution values stored in the lookup table. The substitution values are obtained by bit-shifting the compensation values acquired by bilinear compensation method. The display device avoids the need to use large and slow divider circuits used in ICs implementing bilinear compensation method.
    Type: Application
    Filed: June 6, 2014
    Publication date: July 23, 2015
    Inventors: Sung Gon Jung, Jee-Hoon Jeon, Min-Kyu Park
  • Mounting structure for a direct injection fuel rail
    Patent number: 8944031
    Abstract: The present invention relates to a mounting structure for a direct injection fuel rail. Specifically, a mounting structure 120 for a direct injection fuel rail comprises a mount unit 124 and an injector cup 122 combined with a main pipe 110, wherein the injector cup 122 and the mount unit 124 are connected to and integrated with each other via a bridge 126, wherein the injector cup 122 is bonded to the main pipe 110, and wherein the mount unit 124 is separated from the main pipe 110. As such, concentration of stress due to displacement may be prevented, resistance against fatigue fracture may be increased, thermal deformation and additional concentration of stress may be prevented, manufacturability may be improved, and precise assembling positions may be easily ensured.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: February 3, 2015
    Assignee: Kefico Corporation
    Inventors: Myeong-Hun Kweon, Sung-Hyun Yoon, Sang-Hoon Jeon
  • METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
    Publication number: 20140370390
    Abstract: Disclosed are a method for preparing a positive electrode active material for a lithium secondary battery and a positive electrode active material for a lithium secondary battery, the method including: preparing a mixture of a precursor represented by Chemical Formula 1 below, a lithium composite oxide represented by Chemical Formula 2 below and capable of intercalating/deintercalating lithium ions, and a lithium feed material; and firing the prepared mixture: A(OH)2-a??[Chemical Formula 1] Li[LizA(1-z-a)Da]EbO2-b??[Chemical Formula 2]
    Type: Application
    Filed: August 29, 2014
    Publication date: December 18, 2014
    Inventors: Su An Choi, Seung Won Lee, Sang-Hoon Jeon
  • Compensation table generating system, display apparatus having brightness compensation table, and method of generating compensation table
    Patent number: 8913092
    Abstract: A compensation table generating system includes a test signal applying part which applies a test signal corresponding to reference gray scales to a display panel, an image obtaining part which obtains a test image of each of the reference gray scales displayed on the display panel based on the test signal, a position information extractor which measures a brightness distribution of each of the reference gray scales of the display panel based on the test image of each of the reference gray scales and extracts a representative position information of an stain area, in which a stain appears, based on the brightness distribution of each of the reference gray scales, a compensation data calculator which calculates a compensation data corresponding to a position of the stain area, and a brightness compensation table which stores the representative position information and the compensation data.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: December 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngsuk Ha, Jee-Hoon Jeon, Min-Kyu Park
  • Organic light emitting diode display device and method for driving the same
    Patent number: 8884853
    Abstract: The present invention an organic light emitting diode display device includes a display panel having a plurality of pixel regions, a gate driving unit for driving gate lines and light emitting control lines of the display panel, a data driving unit for driving data lines of the display panel, a power supply unit for supplying first and second power signals to power lines of the display panel as well as a compensating voltage to a compensating power line, and a timing controller for controlling the gate and data driving units for displaying an image with a data voltage compensated with the compensating voltage and controlling the power supply unit to supply the compensating voltage after converting a level of the compensating voltage just before display of a first image on the display panel at an initial driving.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: November 11, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Keun-Choul Kim, Chang-Hoon Jeon
  • Apparatus and Method for Battery Balancing
    Publication number: 20140306666
    Abstract: Provided are an apparatus and a method for battery balancing, and more particularly, an apparatus and a method for battery balancing capable of implementing balancing between batteries which are connected in parallel by controlling a power relay assembly.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 16, 2014
    Applicant: SK Innovation Co., Ltd.
    Inventors: Geun Young Choi, Sang Ho Kim, Woo Seok Song, Jun Ho Kim, Jee Hoon Jeon, Se Hun Jeong, Hyun Seok Kim, Sang Hyuk Park, Jae Geun Jeon, Woo Jin Lee, Jai Hyun Choi, Wook Ho Shin, Se Ho Park
  • Display device and system for wirelessly transmitting/receiving image signals
    Patent number: 8860892
    Abstract: A display device and a system for wirelessly transmitting/receiving an image signal are provided. The display device includes: a display panel that displays an image; an upper housing that is disposed on a front surface of the display panel and has an open window defining a display area; a lower housing that is disposed on a rear surface of the display panel and has a hole formed in a portion of an area corresponding to the display area; and a wireless communication module that is disposed on a rear surface of the lower housing and transmits or receives a wireless signal through the hole.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: October 14, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Sik Nam, Min-Kyu Park, Jee-Hoon Jeon
  • Apparatus and method for estimating a channel in broadband wireless access system
    Patent number: 8837651
    Abstract: An apparatus and a method for estimating a channel in a broadband wireless access system. A receiving apparatus includes a first channel estimation filter having a tap coefficient which is channel-adaptively variable, the first channel estimation filter acquiring a channel impulse response by filtering received pilot symbols, a second channel estimation filter having a fixed tap coefficient, the second channel estimation filter acquiring a channel impulse response by filtering received pilot symbols, and a selector which selects the operation of one of the first and the second channel estimation filters according to channel correlativity.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: September 16, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Jae-Hoon Jeon
  • Method for Preparing Positive Electrode Active Material for Lithium Secondary Battery, Positive Electrode Active Material for Lithium Secondary Battery, and Lithium Secondary Battery Including Same
    Publication number: 20140212749
    Abstract: Disclosed are a method for preparing a positive electrode active material for a lithium secondary battery and a positive electrode active material for a lithium secondary battery, the method including: preparing a mixture of a precursor represented by Chemical Formula 1 below, a lithium composite oxide represented by Chemical Formula 2 below and capable of intercalating/deintercalating lithium ions, and a lithium feed material; and firing the prepared mixture: A(OH)2-a??[Chemical Formula 1] Li[LizA(1-z-a)Da]EbO2-b??[Chemical Formula 2]
    Type: Application
    Filed: March 27, 2014
    Publication date: July 31, 2014
    Applicant: L&F Material Co., Ltd.
    Inventors: Su An Choi, Seung-Won Lee, Sang-Hoon Jeon
  • METHOD OF DISPLAYING AN IMAGE, DISPLAY APPARATUS PERFORMING THE SAME, METHOD AND APPARATUS OF CALCULATING A CORRECTION VALUE APPLIED TO THE SAME
    Publication number: 20140198134
    Abstract: A method of displaying an image on a display panel having a plurality of pixels arranged as rows and columns includes calculating a row correction value corresponding to a pixel position of a received data based on an average luminance of pixels in a pixel row of a sample-grayscale image, calculating a column correction value corresponding to the pixel position of the received data based on an average luminance of pixels in a pixel column of the sample-grayscale image, generating correction data for the received data using a row correction value and a column correction value corresponding to a pixel position of the received data, and converting the correction data to a data voltage to provide a data line of the display panel with the data voltage.
    Type: Application
    Filed: June 20, 2013
    Publication date: July 17, 2014
    Inventors: Hoi-Sik MOON, Min-Kyu PARK, Jee-Hoon JEON, Sung-Goon JUNG, Young-Suk HA
  • FLEXIBLE DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20140175463
    Abstract: A flexible display device is discussed. The flexible display device according to an embodiment includes an insulating and flexible substrate on which an adhesive layer is formed, a support layer adhered to the substrate via the adhesive layer, a cell array formed above the support layer, defining a plurality of pixel regions, and including a ground line connected to a ground voltage source of an external circuit, a light emitting array including a plurality of light emitting structures formed on the cell array, a sealing layer formed on the cell array, and a buffer layer, a shielding layer, and a bottom insulating layer formed between the support layer and the cell array. The light emitting array emits light toward the sealing layer, and the ground line is connected to the shielding layer through a contact hole to partially expose the shielding layer.
    Type: Application
    Filed: August 8, 2013
    Publication date: June 26, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyun-Chul NAM, Chang-Hoon JEON
  • ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME
    Publication number: 20140160178
    Abstract: An organic light emitting diode (OLED) display device and a method for driving the same, are capable of achieving an enhancement in response characteristics of OLEDs and an enhancement in display picture quality through application of an overdriving (or accelerated driving) method taking into consideration intrinsic response characteristics of OLEDs. The OLED display device includes an image display panel including a plurality of pixel regions, and a driving integrated circuit for converting digital image data into an analog image signal, generating a plurality of gamma voltage levels through modulation, for overdriving or accelerated driving of the analog image signal, and modulating gray levels of the digital image data such that the modulated gray levels correspond to the modulated gamma voltage levels, for display of an image according to the modulated image data on the image display panel.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 12, 2014
    Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION OF KYUNGHEE UNIVERSITY, LG DISPLAY CO., LTD.
    Inventors: Soon-Kwang Hong, Chang-Hoon Jeon, Keun-Choul Kim, Byung-Hwee Park, Seung-Woo Lee, Jong-Bin Kim, Min-Koo Kim
  • Method for fabricating solid body having superhydrophobic surface structure and superhydrophobic tube using the same method
    Patent number: 8707999
    Abstract: The present invention relates to a method for manufacturing a solid body having a superhydrophobic surface structure formed by using a surface treatment of a metal body, a replication process, and a polymer sticking phenomenon to increase efficiency of fluid transfer and prevent foreign materials from being accumulated in the tube, and a superhydrophobic fluid transfer tube using the method. The superhydrophobic fluid transfer tube includes a fluid guider and a solid body provided on a fluid contact surface of the fluid guider and has micrometer-scaled unevenness and nanometer-scaled protrusions.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: April 29, 2014
    Assignee: Postech Academy-Industry Foundation
    Inventors: Dong-Hyun Kim, Sang-Min Lee, Il-Sin Bae, Dong-Seob Kim, Duk-Hyun Choi, Chang-Woo Lee, Ji-Hoon Jeon, Seong-Ho Son, Tae-Chul Moon, Woon-Bong Hwang, Joon-Won Kim, Hyun-Chul Park, Kun-Hong Lee