Patents by Inventor Han Cho

Han Cho 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).

  • GATE DRIVER AND A DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20140204009
    Abstract: A gate driver includes a plurality of stages, wherein an n-th stage includes: a pull-up unit configured to output a high voltage of a clock signal as a high voltage of an n-th gate signal; a pull-down unit configured to decrease the high voltage of the n-th gate signal to a first low voltage; a discharging unit configured to discharge a voltage of the first node to a second low voltage lower than the first low voltage; a carry unit configured to output the high voltage of the clock signal as an n-th carry signal; an inverter unit configured to output a signal in synchronization with the clock signal; a first node storage unit configured to maintain the voltage of the first node at the second low voltage; and a second node storage unit configured to maintain the voltage of the second node at the first or second low voltage.
    Type: Application
    Filed: June 28, 2013
    Publication date: July 24, 2014
    Inventors: Kang Nam Kim, Duc-Han Cho, You Mee Hyun, Jeong-II Kim, Jong Woong Chang
  • Organic light emitting diode display
    Patent number: 8780579
    Abstract: An organic light emitting diode display having a display panel comprising a first substrate and a second substrate disposed facing the first substrate, the first substrate comprising a display area and a pad area, a buffer member disposed on one surface of the first substrate, the buffering member having a buffer layer and an adhesive layer formed on at least one surface of the buffer layer, and a bezel or a case accommodating the display panel and buffer member.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: July 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Oh-June Kwon, Kuen-Dong Ha, Hyun-Min Hwang, Ji-Ho Kang, Chan-Kyoung Moon, Hyun-Hee Lee, Jung-Jun Im, Dong-Su Yee, In-Soo Lee, Min-Su Kim, Young-Cheol Joo, Seung-Yong Song, Ji-Hun Ryu, Kwan-Hee Lee, Young-Seo Choi, Sun-Young Jung, Sun-Hwa Kim, Dai-Han Cho
  • THIN FILM TRANSISTOR ARRAY PANEL
    Publication number: 20140191238
    Abstract: A thin film transistor array panel includes a gate line elongated in an extension direction and including a gate and dummy gate electrode extended therefrom; and a source electrode, and a single drain member including a drain electrode at a first end thereof and a dummy drain electrode at an opposing second end thereof. The drain electrode faces the source electrode with respect to the gate electrode, and the dummy drain electrode overlaps the dummy gate electrode. The drain and dummy drain electrode respectively include a plurality of first and second regions each having a predetermined width in the extension direction. A second region includes an edge which forms an angle from about 0 degrees to about 90 degrees with the extension direction, and a planar area of at least one of the plurality of second regions is different from that of remaining second regions.
    Type: Application
    Filed: December 8, 2013
    Publication date: July 10, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung Hwan HWANG, Bon-Yong KOO, Soo Jin PARK, Jong-Moon PARK, Yong Hee LEE, Jong-Hyuk LEE, Duc-Han CHO
  • POLARIZING PLATE
    Publication number: 20140168580
    Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as durability, water resistance, workability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring in the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 19, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Eun Soo HUH, Ki Ok KWON, In Kyu PARK, Sung Soo YOON, Min Ki LEE, Sae Han CHO
  • POLARIZING PLATE
    Publication number: 20140160405
    Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as water resistance, workability, durability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring at the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Eun Soo Huh, Ki Ok Kwon, In Ho Hwang, Kyun II Rah, Min Ki Lee, Sae Han Cho
  • Flat panel display device and method of fabricating the same
    Patent number: 8711308
    Abstract: Provided are a flat panel display device including a protection board configured to prevent damage of a display panel from external impact, and a method of fabricating the same. The display panel and the protection board are closely attached, and distortion of an image displayed on the display panel due to a space between the display panel and the protection board can be prevented. The flat panel display device includes a display panel including a lower substrate, an upper substrate and at least one light emitting element disposed between the lower and upper substrates, a protection board disposed on the display panel, and an adhesive layer disposed between the display panel and the protection board.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Noh-Min Kwak, Dai-Han Cho, Gi-Na Yoo, Min-Jae Kim, Jeong-No Lee, Woo-Suk Jung, Duk-Jin Lee
  • Method of processing data and display apparatus for performing the method
    Patent number: 8712152
    Abstract: A method of processing data includes correcting received color data and generating corrected color data, generating color glitch correction data corresponding to the corrected color data using a glitch correction value preset based on the received color data, and converting the color glitch correction data into a color data voltage and providing the color data voltage to a display panel.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 29, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Won Jeong, Duc-Han Cho, Woo-Jin Jung, Woo-Young Lee, Kang-Hyun Kim, Su-Bin Park
  • Method of driving display panel and display apparatus for performing the same
    Patent number: 8698851
    Abstract: A display apparatus includes a first pixel including a first pixel electrode connected to first data and gate lines, a second pixel including a second pixel electrode connected to a second data and gate lines, a third pixel including a third pixel electrode connected to a third data line and the first gate line, a fourth pixel including a fourth pixel electrode connected to a fourth data line and the second gate line, a fifth pixel including a fifth pixel electrode connected to a fifth data line and the second gate line, a sixth pixel including a sixth pixel electrode connected to a sixth data line and the first gate line, a seventh pixel including a seventh pixel electrode connected to a seventh data line and the second gate line, and an eighth pixel including an eighth pixel electrode connected to an eighth data line and the first gate line.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: April 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hoi-Sik Moon, Duc-Han Cho
  • Optical communication system using grounded coplanar waveguide
    Patent number: 8692179
    Abstract: The invention discloses an optical communication system using grounded coplanar waveguide, comprising a current buffer and a transimpedance amplifier (TIA). Transmission lines of the optical communication system have grounded coplanar waveguide (GCPW) structures. The current buffer receives a current signal from a signal source, and outputs the current signal after reducing capacitance effects of the signal source. The TIA converts the current signal to a voltage signal, wherein a first end of the TIA receives the current signal, a second end of the TIAn outputs the voltage signal, and a shunt-shunt feedback circuit is coupled between the first end and the second end. Therefore, the present invention can minimize the circuit area and lower the power consumption as well.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: April 8, 2014
    Assignee: National Tsing Hua University
    Inventors: Wei-Han Cho, Chia-Hou Tu, Shawn S. H. Hsu
  • Electronic device having organic light emitting diode display
    Patent number: 8641240
    Abstract: An electronic device improves an impact-resistance characteristic of an organic light emitting diode (OLED) display. The electronic device includes an organic light emitting diode (OLED) display including a panel assembly for forming an organic light emitting element, and a housing including a housing main body for receiving the organic light emitting diode (OLED) display. The housing includes a housing main body including a first space for receiving the panel assembly and a second space for receiving a printed circuit board, an upper cover, and a lower cover. The housing main body includes a bottom formed to distinguish a first space and a second space in the housing, and also includes a bent unit on an edge, and a side wall in which the bent unit is buried to be combined with the edge of the bottom.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: February 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chan-Hee Wang, Dai-Han Cho, Hyun-Hee Lee, Min-Su Kim, Chan-Kyoung Moon, Dong-Su Yee, Tae-Hyeok Kang, Ji-Young Wang, Kyu-Hyeong Cheon, Kyu-Seob Han
  • DISPLAY DEVICE INCLUDING TOUCH EMITTING KEY UNIT
    Publication number: 20140028583
    Abstract: A display device is disclosed. In one aspect, the device includes a touch emitting key unit, wherein the display device has a structure that a display module and a part of the touch emitting key unit substantially vertically overlap as the touch emitting key unit is affixed to a window. According to the structure, a dead space outside a screen may be effectively reduced.
    Type: Application
    Filed: November 30, 2012
    Publication date: January 30, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventor: Dai-Han Cho
  • Display device
    Patent number: 8625042
    Abstract: A display device is disclosed. In one embodiment, the device includes a display panel displaying an image and an integrated receiving member supporting the display panel. The integrated receiving member includes a press molding portion including a bottom portion and a side wall portion bent and extended from the bottom portion and having a through-hole formed therein and an injection molding portion including a frame portion integrally attached to at least one side of the press molding portion, facing the display panel and a flange portion extended from the frame portion and protruding through the through-hole. The flange portion of the injection molding portion is wholly or partially separated from the side wall portion of the press molding portion within the through-hole.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Hyeong Cheon, Dai-Han Cho, Chan-Kyoung Moon, Hyun-Hee Lee, Min-Su Kim, Hyun-Chuel Kim, Ji-Young Wang, Chan-Hee Wang, Tae-Hyeok Kang, Dong-Su Yee, Kyu-Seob Han
  • Optical film and information technology apparatus comprising the same
    Patent number: 8613986
    Abstract: The present invention relates to an optical film comprising an aromatic based unit including 5 to 10,000 of units represented by Formula 6; a (meth)acrylate-based unit which is a copolymer of a (meth)acrylate derivative and maleimide; and a styrene-based unit which is a copolymer of a styrene derivative and maleimide, and a polarizing plate.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: December 24, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
  • GATE DRIVE CIRCUIT AND DISPLAY DEVICE HAVING THE GATE DRIVE CIRCUIT
    Publication number: 20130335392
    Abstract: A gate drive circuit in which multiple stages are connected together one after each other. An n-th stage includes a pull-up part, a carry part, a pull-down part, a switching part, a first maintaining part and a second maintaining part. The pull-up part outputs a high voltage of a first clock signal. The carry part outputs a high voltage of the first clock signal. The pull-down part pulls-down the n-th gate signal into a first low voltage. The switching part outputs a first signal synchronized with the first clock signal during an interval other than a high voltage output interval of the n-th carry signal. The first maintaining part maintains the n-th gate signal at the first low voltage in response to the first signal. The second maintaining part maintains the n-th gate signal at the first low voltage in response to a second signal.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 19, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: DUC-HAN CHO, KANG-NAM KIM, JAE-HOON LEE, YOU-MEE HYUN, JONG-WOONG CHANG, YUN HEO
  • Display device comprising color pixels connected to gate drivers and driving method thereof
    Patent number: 8593385
    Abstract: Disclosed are a display device and a driving method thereof. The display device includes: a display panel including a plurality of pixels, a plurality of gate lines, and a plurality of data lines; a first gate driver and a second gate driver which each transmit a gate signal to the gate lines and are at edge regions of the display panel; and a data driver which transmit data voltages to the data lines. The pixels include a plurality of first color pixels which display a first color and are connected to the first gate driver, a plurality of second color pixels which display a second color and are connected to the second gate driver, and a plurality of third color pixels which display a third color and comprise at least a pixel connected to the first gate driver and at least a pixel connected to the second gate driver.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: November 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Lee, Whee-Won Lee, Duc-Han Cho
  • ADHESIVE FOR POLARIZING PLATE, AND POLARIZING PLATE COMPRISING SAME
    Publication number: 20130244041
    Abstract: Provided are an adhesive for a polarizing plate and a polarizing plate comprising the same, and more particularly, an adhesive composition for a polarizing plate comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator, as well as a polarizing plate comprising a polarizer, a polymer film adhered to one side or both sides of the polarizer, and an adhesive layer for bonding the polarizer and the polymer film, in which the adhesive layer is formed of an adhesive composition comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator.
    Type: Application
    Filed: September 20, 2011
    Publication date: September 19, 2013
    Applicant: LG CHEM. LTD.
    Inventors: Sae-Han Cho, Eun-Mi Seo, Boong-Goon Jeong, Kyun-Il Rah, Nam-Jeong Lee
  • OPTICAL FILM AND INFORMATION TECHNOLOGY APPARATUS COMPRISING THE SAME
    Publication number: 20130235456
    Abstract: The present invention relates to an optical film comprising an aromatic based unit including 5 to 10,000 of units represented by Formula 6; a (meth)acrylate-based unit which is a copolymer of a (meth)acrylate derivative and maleimide; and a styrene-based unit which is a copolymer of a styrene derivative and maleimide, and a polarizing plate.
    Type: Application
    Filed: September 5, 2012
    Publication date: September 12, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
  • Flat panel display
    Patent number: 8432672
    Abstract: A flat panel display device including a display panel, a bezel having a substrate to support the display panel and configured to receive the display panel, and a bonding agent disposed between the substrate of the bezel and the display panel. Further, the substrate of the bezel and the display panel may be bonded and fixed to each other. Therefore, it is possible to provide a flat panel display device having a small thickness and capable of improving strength against an external pressure.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: April 30, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dai-Han Cho, Dong-Su Yee, Chan-Kyoung Moon, Hyun-Hee Lee, Min-Su Kim, Kuen-Dong Ha, Jae-Yong Kim
  • Method for self localization using parallel projection model
    Patent number: 8432442
    Abstract: A method of recognizing a self location of an image acquisition device by acquiring an image of two or more reference objects is provided.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: April 30, 2013
    Assignee: Yaejune International Patent Law Firm
    Inventors: Yun Young Nam, Yun Tai Kyong, Shung Han Cho, Sang Jin Hong, We-Duke Cho
  • DISPLAY DEVICE AND DRIVING METHOD THEREOF
    Publication number: 20130082996
    Abstract: A driving apparatus for a display device includes: a signal controller that generates a pre-clock signal, a charge sharing control signal and a scanning start signal; a clock signal generator that generates a clock signal swinging between a first voltage and a second voltage based on the pre-clock signal and the charge sharing control signal; and a gate driver that generates gate signals based on the scanning start signal and the clock signal, where the clock signal generator includes: a voltage generator that generates a third voltage; and a clock generator that receives one of the first to third voltages in response to the pre-clock signal and the charge sharing control signal, and outputs an output signal based on the one of the first to third voltages as the clock signal, where the third voltage is lower than the first voltage and higher than the second voltage.
    Type: Application
    Filed: February 8, 2012
    Publication date: April 4, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Su KIM, Jae Hoon LEE, Duc-Han CHO