Patents by Inventor Jeong Hyun Lee

Jeong Hyun 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: 9541809
    Abstract: An array substrate includes a plurality of data lines, a plurality of gamma lines, a repair pad, a repair line, an inspection pad and an inspection line. The data lines transmit a data voltage to an active region. The gamma lines apply a gamma reference voltage to generate the data voltage. The repair pad repairs the data line. The repair line extends from the repair pad. The repair line is disposed adjacent to the gamma line. The inspection pad applies an inspection signal. The inspection line extends from the inspection pad. The inspection line is connected to the data lines. The gamma lines are connected to the inspection line.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: January 10, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Seok Han, Seul-Ki Kim, Seung-Jin Kim, Jeong-Hyun Lee
  • Publication number: 20160131440
    Abstract: A heat transfer device comprising at least an aggregate of fibres or sheet of fibres (60) with internal passages and holes capable of capillary transport of liquids capable of capillary convection of coolant fluid from a heat source region (54) to heat dissipation region (56) and vice versa. A supply of coolant fluid in sufficient amount is provided to be absorbed or contained by said fibres or sheet of fibres (60) with internal passages and holes capable of capillary transport of liquids. A pressure tension member (70) comprising a strong yet resilient structure placed within said confined space and exerting pressure on said aggregate of fibres or sheet of fibres (60) with internal passages and holes capable of capillary transport of liquids against said heat source region (54) and/or heat dissipation region (57).
    Type: Application
    Filed: December 29, 2015
    Publication date: May 12, 2016
    Inventor: JEONG HYUN LEE
  • Patent number: 9291811
    Abstract: According to certain embodiments of the invention, an electrowetting device and a method for improving the response speed of an electrowetting device may be provided. The electrowetting device can includes: an electrode; an insulation film including a dielectric material that is coated over the electrode; a droplet positioned over the insulation film; and a power control unit configured to control a voltage applied to the electrode, where the power control unit reaches a particular contact angle by applying a first voltage that is higher than a second voltage corresponding to the particular contact angle, and applies the second voltage once the particular contact angle is reached. According to certain embodiments of the invention, the response speed of an electrowetting device can be improved by applying different voltages according to the contact angle of the droplet in an electrowetting device.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: March 22, 2016
    Assignee: Myongji University Industry and Academia Cooperation Foundation
    Inventors: Sang-Kug Chung, Jeong-Byung Chae, Jeong-Hyun Lee
  • Patent number: 9250025
    Abstract: A heat transfer device comprising at least an aggregate of fibers or sheet of fibres (60) with internal passages and holes capable of capillary transport of liquids capable of capillary convection of coolant fluid from a heat source region (54) to heat dissipation region (56) and vice versa. A supply of coolant fluid in sufficient amount is provided to be absorbed or contained by said fibers or sheet of fibers (60) with internal passages and holes capable of capillary transport of liquids. A pressure tension member (70) comprising a strong yet resilient structure placed within said confined space and exerting pressure on said aggregate of fibers or sheet of fibers (60) with internal passages and holes capable of capillary transport of liquids against said heat source region (54) and/or heat dissipation region (57).
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: February 2, 2016
    Assignee: NEXCHIP TECHNOLOGIES
    Inventor: Jeong Hyun Lee
  • Publication number: 20150241747
    Abstract: An array substrate includes a plurality of data lines, a plurality of gamma lines, a repair pad, a repair line, an inspection pad and an inspection line. The data lines transmit a data voltage to an active region. The gamma lines apply a gamma reference voltage to generate the data voltage. The repair pad repairs the data line. The repair line extends from the repair pad. The repair line is disposed adjacent to the gamma line. The inspection pad applies an inspection signal. The inspection line extends from the inspection pad. The inspection line is connected to the data lines. The gamma lines are connected to the inspection line.
    Type: Application
    Filed: August 28, 2014
    Publication date: August 27, 2015
    Inventors: Yun-Seok HAN, Seul-Ki KIM, Seung-Jin KIM, Jeong-Hyun LEE
  • Publication number: 20150199929
    Abstract: A display panel includes a plurality of display signal lines positioned in a display area. A plurality of test pads are positioned in a peripheral area around the display area and are respectively connected to the plurality of display signal lines. The plurality of test pads include a first test pad positioned at an edge of the peripheral area and a second test pad positioned at the middle of the peripheral area. A shorting bar is connected to the plurality of test pads through a contact assistant. The first test pad is connected to the second test pad through a connection line.
    Type: Application
    Filed: June 2, 2014
    Publication date: July 16, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: SEUL-KI KIM, Seung-Jin Kim, Jeong-Hyun Lee, Dong Hun Lee, Yun Seok Han
  • Patent number: 9081316
    Abstract: An electrophotographic toner including a binder, a colorant and a releasing agent, and a method of preparing the electrophotographic toner.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-mo Hong, Jae-hwan Kim, Kyeong Pang, Su-bum Park, Jeong-hyun Lee, Mi-rim Cho
  • Publication number: 20150192351
    Abstract: A body of a refrigerator may be deformed when the rigidity of the body is lowered due to a thickness of insulation being reduced to increase an internal capacity of the body. Deformation of the body of the refrigerator is reduced by improving rigidity of the body using a reinforcement structure. The refrigerator may include an electric apparatus box in which electric apparatus components for controlling an operation of the refrigerator are accommodated. Electric components may be disposed in a hinge cover which is disposed in the front of the refrigerator to improve spatial utility and a reinforcement plate formed of a steel material may be disposed in the electric apparatus box to prevent a fire from spreading.
    Type: Application
    Filed: January 6, 2015
    Publication date: July 9, 2015
    Inventors: Byeong Kook Kang, Sang Joon Im, Jeong Hyun Lee
  • Patent number: 8987741
    Abstract: Provided is a thin film transistor array panel that includes: a substrate; a gate line and a data line formed on the substrate and at least partially defining a pixel area; a thin film transistor connected to the gate line and the data line; a pixel electrode connected to the thin film transistor and formed in the pixel area; a first common electrode formed under the pixel electrode; a second common electrode formed on the pixel electrode. The pixel area includes an upper pixel area and a lower pixel area, the first common electrode is formed in the upper pixel area, and the second common electrode is formed in the lower pixel area. The pixel electrode includes an upper pixel electrode formed in the upper pixel area and a lower pixel electrode formed in the lower pixel area.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ock-Soo Son, Jeong-Uk Heo, Yeon-Sik Ham, Yeon-Mun Jeon, Jeong-Hyun Lee
  • Publication number: 20150036205
    Abstract: According to certain embodiments of the invention, an electrowetting device and a method for improving the response speed of an electrowetting device may be provided. The electrowetting device can includes: an electrode; an insulation film including a dielectric material that is coated over the electrode; a droplet positioned over the insulation film; and a power control unit configured to control a voltage applied to the electrode, where the power control unit reaches a particular contact angle by applying a first voltage that is higher than a second voltage corresponding to the particular contact angle, and applies the second voltage once the particular contact angle is reached. According to certain embodiments of the invention, the response speed of an electrowetting device can be improved by applying different voltages according to the contact angle of the droplet in an electrowetting device.
    Type: Application
    Filed: April 30, 2012
    Publication date: February 5, 2015
    Applicant: Myongji University Industry and Academia Cooperation Foundation
    Inventors: Sang-Kug Chung, Jeong-Byung Chae, Jeong-Hyun Lee
  • Publication number: 20140314453
    Abstract: A developing unit and an image forming apparatus using the may include a photosensitive body having an electrostatic latent image formed thereon, a feed roller to supply a developing agent, a regulating member to regulate the amount of the developing agent transported to the developing member, and a protection member having a protection blade disposed at one side of the regulating member to be spaced apart from the regulating member to protect the regulating member. The regulating member may be prevented from being damaged or degraded and protected from an external environment.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 23, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jeong Hyun Lee, Young Jin Park, Jong Woo Lee
  • Publication number: 20140313447
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Application
    Filed: July 2, 2014
    Publication date: October 23, 2014
    Inventors: Jang-Kun SONG, Yeon-Sik HAM, Kang-Woo KIM, Yeon-Mun JEON, Jeong Hyun LEE
  • Patent number: 8804081
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: August 12, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
  • Patent number: 8604479
    Abstract: A display substrate includes a substrate, a gate line formed on the substrate, a data line formed on the substrate and crossing the gate line, a first pixel electrode formed on the substrate on which the gate and the data line are formed, an insulation layer formed on the substrate and the first pixel electrode, and a second pixel electrode formed on the insulation layer. The second pixel electrode includes a first sub-electrode that overlaps the first pixel electrode and the data line, and a second sub-electrode that is electrically connected to the data line through a switching element.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: December 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong-Hyun Lee, Jeong-Uk Heo, Yeon-Sik Ham, Ock-Soo Son, Yeon-Mun Jeon
  • Patent number: 8501378
    Abstract: An electrophotographic toner includes a latex, a colorant, and a release agent, wherein G?(80) is in a range of about 2.0×105 Pa to about 3.0×106 Pa and G?(80)/G?(140) is in a range of about 2.0×102 to about 3.0×103, wherein in regard to a molecular weight distribution on a gel permeation chromatography (GPC) chromatogram, the molecular weight region of 1.0×104 g/mol or less of a tetrahydrofuran (THF)-soluble component of the electrophotographic toner is about 5% or less, and the molecular weight region of 1.0×105 g/mol or more of the THF-soluble component of the electrophotographic toner is in a range of about 5% to about 20%, where G?(80) and G?(140) respectively denote storage moduli of the electrophotographic toner at temperatures of 80° C. and 140° C. when a dynamic viscoelasticity according to a sine-wave vibration is measured at an angular velocity of 6.28 rad/sec and at a temperature increase rate of 2.0° C./min.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 6, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jeong-hyun Lee, Yong-kyun Jung, Kyeong Pang
  • Patent number: 8431308
    Abstract: Toner for developing an electrostatic image, which satisfies charging stability, low-temperature fixability, high-temperature storage characteristics, and durability with respect to an environment up to a predetermined level or above, and a method of preparing the toner. The toner includes: a core layer including a first binder resin, a colorant, and a releasing agent; and a shell layer covering the core layer and including a second binder resin, wherein the first binder resin includes about 70 wt % or above of amorphous polyester resin and about 30 wt % or below of crystalline polyester resin, the second binder resin includes an amorphous polyester resin, and a melting temperature (Tm(C)) of the crystalline polyester resin, a melting temperature (Tm(W)) of the releasing agent, and a melting point (Tm(T)) of the toner satisfy the following conditions: ?20° C.?Tm(W)?Tm(C)?20° C.; and 0° C.<Tm(C)?Tm(T)?10° C.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: April 30, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyeong Pang, Jae-hwan Kim, Jin-mo Hong, Yo-da Shin, Su-bum Park, Jeong-hyun Lee, Mi-rim Cho
  • Patent number: 8431307
    Abstract: The disclosure provides an electrographic toner having a core layer, which includes a binder, a colorant and two or more types of releasing agents, and a shell layer covering the core layer, and a method of preparing the same.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: April 30, 2013
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Jae-hwan Kim, Kyeong Pang, Jin-mo Hong, Su-bum Park, Jeong-hyun Lee, Mi-rim Cho
  • Patent number: 8431296
    Abstract: Provided are an electrophotographic toner, a process for preparing the same, image forming method and an image forming apparatus using the toner. The electrophotographic toner may include a latex, colorant, wax, Si and Fe. A molar ratio of Si/Fe may be about 0.1 to about 5.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: April 30, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyeong Pang, Hae-ree Joo, Jeong-hyun Lee, Su-bum Park
  • Patent number: 8383306
    Abstract: The present disclosure provides an electrographic toner and methods for preparing an electrographic toner. In particular, the present disclosure provides an electrophotographic toner comprising a latex, a colorant and a releasing agent. The electrophotographic toner may further comprise zinc (Zn), iron (Fe), and silicon (Si). The [Zn]/[Fe] ratio may be in the range of about 5.0×10?2 to about 2.0. The [Si]/[Fe] ratio may be in the range of about 5.0×10?4 to about 5.0×10?2. [Zn], [Fe] and [Si] denote the intensities of Zn, Fe and Si, respectively, as measured by X-ray fluorescence spectrometry.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyeong Pang, Jae-Hwan Kim, Jin-Mo Hong, Su-Bum Park, Jeong-Hyun Lee, Mi-Rim Cho
  • Publication number: 20120112213
    Abstract: A display substrate includes a substrate, a gate line formed on the substrate, a data line formed on the substrate and crossing the gate line, a first pixel electrode formed on the substrate on which the gate and the data line are formed, an insulation layer formed on the substrate and the first pixel electrode, and a second pixel electrode formed on the insulation layer. The second pixel electrode includes a first sub-electrode that overlaps the first pixel electrode and the data line, and a second sub-electrode that is electrically connected to the data line through a switching element.
    Type: Application
    Filed: September 7, 2011
    Publication date: May 10, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong-Hyun Lee, Jeong-Uk Heo, Yeon-Sik Ham, Ock-Soo Son, Yeon-Mun Jeon