Patents by Inventor Chang-Oh Jeong

Chang-Oh Jeong 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: 10403536
    Abstract: An electrostatic chuck and a substrate processing apparatus including the same are disclosed. In one aspect, the electrostatic chuck includes a stage configured to support a substrate including a panel formation region and a dummy region surrounding the panel formation region. The electrostatic chuck includes a substrate fixing unit including a plurality of electrode patterns insulated from the substrate and spaced apart from one another, the substrate fixing unit at least partially overlapping the dummy region of the substrate and not overlapping the panel formation region of the substrate.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: September 3, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Su-Kyoung Yang, Gyung-Min Baek, Joon-Yong Park, Chang-Oh Jeong
  • Publication number: 20190088752
    Abstract: A thin film transistor includes a gate electrode, a semiconductor layer, and source and drain electrodes contacting the semiconductor layer. The source and drain electrodes include a metal oxide having a crystal size in a c-axis direction Lc(002) that ranges from 67 ? or more to 144 ? or less.
    Type: Application
    Filed: November 16, 2018
    Publication date: March 21, 2019
    Inventors: Chan Woo YANG, Hyune Ok SHIN, Chang Oh JEONG, Su Kyoung YANG, Dong Min LEE
  • Patent number: 10134855
    Abstract: A thin film transistor includes a gate electrode, a semiconductor layer, and source and drain electrodes contacting the semiconductor layer. The source and drain electrodes include a metal oxide having a crystal size in a c-axis direction Lc(002) that ranges from 67 ? or more to 144 ? or less.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: November 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chan Woo Yang, Hyune Ok Shin, Chang Oh Jeong, Su Kyoung Yang, Dong Min Lee
  • Patent number: 10088704
    Abstract: A display device includes a substrate and a wire grid polarizer disposed on the substrate. The wire grid polarizer includes a first wire grid layer, a first middle layer, and a second wire grid layer. The first wire grid layer includes a plurality of first wire grid lines separated from each other. The first middle layer is disposed on the first wire grid layer. The first middle layer includes a first portion having a first middle layer thickness and a second portion having a second middle layer thickness thinner than the first middle layer thickness. The second middle layer thickness is thinner than a thickness of each first wire grid line. The second wire grid layer is disposed on the first middle layer and includes a plurality of second wire grid lines separated from each other. The second wire grid lines overlap the second portion of the first middle layer.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: October 2, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Eok Shin, Dong Min Lee, Chang Oh Jeong
  • Patent number: 9824788
    Abstract: Provided is a metal wire. The metal wire includes a copper layer, and at least one barrier layer. The barrier layer is disposed on at least one of an upper part and a lower part of the copper layer. The barrier layer includes an alloy including copper, nickel, and zinc.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: November 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Su Hyoung Kang, Sang Woo Sohn, Chang Oh Jeong, Gwang Min Cha
  • Patent number: 9773823
    Abstract: A display device and a method of manufacturing the display device are disclosed. In one aspect, the method includes forming a sacrificial layer over a carrier substrate, forming a passivation barrier layer to cover upper and lateral sides of the sacrificial layer and forming a thin film transistor layer over the passivation barrier layer. The method also includes placing a mask over the thin film transistor layer so as to expose an edge portion of the passivation barrier layer, wherein the edge portion does not overlap the mask in the depth dimension of the display device. The method further includes removing the edge portion of the passivation barrier layer so as to form a barrier layer and separating the carrier substrate from the barrier layer via the sacrificial layer.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su-Hyoung Kang, Gwang Min Cha, Chang Oh Jeong
  • Publication number: 20170269427
    Abstract: A display device including a substrate and a wire grid polarizer disposed on the substrate, wherein the wire grid polarizer includes a first wire grid layer having a first wire thickness and including a plurality of first wire grids separated from each other, a first middle layer disposed on the first wire grid layer, the first middle layer including a first portion having a first middle layer thickness and a second portion having a second middle layer thickness thinner than the first middle layer thickness, the second middle layer thickness being thinner than the first wire thickness, and a second wire grid layer disposed on the first middle layer and including a plurality of second wire grids separated from each other, the plurality of second wire grids overlapping the second portion of the first middle layer.
    Type: Application
    Filed: February 21, 2017
    Publication date: September 21, 2017
    Inventors: Hyun Eok SHIN, Dong Min LEE, Chang Oh JEONG
  • Publication number: 20170152596
    Abstract: A sputtering device includes a plurality of sputtering targets provided in a process chamber, a substrate holder facing the plurality of sputtering targets and configured to support a substrate, and a deposition mask disposed between the plurality of sputtering targets and the substrate, the deposition mask covering an end portion of the substrate. At least one of the plurality of sputtering targets has an arc shape that is convex toward the substrate and a remainder of the plurality of sputtering targets are flat facing toward the substrate.
    Type: Application
    Filed: August 22, 2016
    Publication date: June 1, 2017
    Inventors: Sang Woo SOHN, Hyun Ju KANG, Chang Oh JEONG
  • Publication number: 20170110299
    Abstract: A sputtering apparatus includes a chamber, a target section disposed in the chamber, and a stage facing the target section. The target section includes a first target having a first diameter and a second target having a second diameter different from the first diameter. The first target and the second target each extend in a longitudinal direction and have a cylindrical shape, and the first and second diameters are respectively measured along a cross-section of corresponding first and second targets taken along a direction perpendicular to the longitudinal direction.
    Type: Application
    Filed: August 16, 2016
    Publication date: April 20, 2017
    Inventors: Chang Oh JEONG, Hyun Eok SHIN, Hyun Ju KANG, Joon Yong PARK, Sang Woo SOHN, Sang Won SHIN, Dong Hee LEE
  • Patent number: 9625761
    Abstract: A polarizer and a liquid crystal display including the polarizer, the polarizer including a plurality of metal lines extending in one direction and being arranged at regular intervals; and a plurality of low reflection layers on the plurality of metal lines, the plurality of low reflection layers contacting respective upper parts of the plurality of metal lines and having an interval and a width about equal to an interval and a width of the plurality of metal lines, wherein the interval of the plurality of metal lines is smaller than a wavelength of a visible ray, and light incident from an upper side of the plurality of low reflection layers is reflected with reflectivity equal to or smaller than 10%.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Young Lee, Joon Yong Park, Kyung Seop Kim, Jung Gun Nam, Chang Oh Jeong, Gug Rae Jo
  • Publication number: 20170098567
    Abstract: An electrostatic chuck and a substrate processing apparatus including the same are disclosed. In one aspect, the electrostatic chuck includes a stage configured to support a substrate including a panel formation region and a dummy region surrounding the panel formation region. The electrostatic chuck includes a substrate fixing unit including a plurality of electrode patterns insulated from the substrate and spaced apart from one another, the substrate fixing unit at least partially overlapping the dummy region of the substrate and not overlapping the panel formation region of the substrate.
    Type: Application
    Filed: June 9, 2016
    Publication date: April 6, 2017
    Inventors: Su-Kyoung Yang, Gyung-Min Baek, Yoon-Yong Park, Chang-Oh Jeong
  • Patent number: 9601520
    Abstract: Exemplary embodiments of the present invention relate to a panel and a display device including the same, the panel including a substrate, a signal line arranged on the substrate, the signal line configured to transmit a driving signal, an insulating layer arranged on the signal line, and a pixel electrode and a contact assistant arranged on the insulating layer. The contact assistant is electrically connected to a portion of the signal line, the contact assistant includes indium zinc oxide doped with a metal oxide not including indium or zinc, and the metal oxide has a smaller Gibbs free energy than zinc oxide.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: March 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Yong Park, Chang Oh Jeong, Byeong Beom Kim, Hong Long Ning, Hyung Jun Kim, Sang Won Shin
  • Patent number: 9595687
    Abstract: An organic light emitting display device includes a thin film transistor including a semiconductor layer, a gate electrode, and source and drain electrodes, a pixel electrode connected to the thin film transistor, the pixel electrode including a first layer, a second layer disposed on the first layer and including silver, and a third layer including a carbon-based material and covering an upper portion and lateral surface of the second layer, an organic emission layer including an organic light emitting member and disposed on the pixel electrode, and a common electrode disposed on the organic emission layer.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: March 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su-Hyoung Kang, Hyun Eok Shin, Chang Oh Jeong
  • Patent number: 9541784
    Abstract: A liquid crystal display includes a substrate; a first electrode on the substrate; a second electrode on the first electrode and separated from the first electrode; a cavity defined between the first electrode and the second electrode; a first protection layer on the second electrode; a cover layer on the first protection layer; and a liquid crystal layer including liquid crystal molecules in the cavity. The second electrode includes metal oxide and zinc oxide.
    Type: Grant
    Filed: December 8, 2013
    Date of Patent: January 10, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joon Yong Park, Dong Min Lee, Sang Wook Lee, Chang Oh Jeong, Gyung Min Baek, Kyung Tae Chae
  • Patent number: 9482917
    Abstract: The present invention relates to a display device and a manufacturing method thereof, wherein a spoilage layer generated in a manufacturing process is removed, and a manufacturing method of a display device according to an exemplary embodiment of the present invention includes: forming a thin film transistor on a substrate including a plurality of pixel areas; forming a pixel electrode connected to the thin film transistor in the pixel area; forming a sacrificial layer on the pixel electrode; forming a barrier layer on the sacrificial layer; forming a common electrode on the barrier layer; forming a roof layer on the common electrode; patterning the barrier layer, the common electrode, and the roof layer to exposed a portion of the sacrificial layer thereby forming an injection hole; removing the sacrificial layer to form a microcavity for a plurality of pixel areas; removing the barrier layer.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Sick Park, Seon-Il Kim, Min Ho Moon, Hyang-Shik Kong, Yeun Tae Kim, Chang Oh Jeong
  • Publication number: 20160315227
    Abstract: A display device and a method of manufacturing the display device are disclosed. In one aspect, the method includes forming a sacrificial layer over a carrier substrate, forming a passivation barrier layer to cover upper and lateral sides of the sacrificial layer and forming a thin film transistor layer over the passivation barrier layer. The method also includes placing a mask over the thin film transistor layer so as to expose an edge portion of the passivation barrier layer, wherein the edge portion does not overlap the mask in the depth dimension of the display device. The method further includes removing the edge portion of the passivation barrier layer so as to form a barrier layer and separating the carrier substrate from the barrier layer via the sacrificial layer.
    Type: Application
    Filed: November 23, 2015
    Publication date: October 27, 2016
    Inventors: Su-Hyoung Kang, Gwang Min Cha, Chang Oh Jeong
  • Publication number: 20160293635
    Abstract: A display device includes a gate line, a data line crossing the gate line, and a first transistor including a gate electrode electrically coupled to the gate line and a first electrode electrically coupled to the data line. At least one of the gate electrode of the first transistor, the first electrode of the first transistor, and a second electrode of the first transistor includes at least one of a first conductor layer and a second conductor layer. The first conductor layer includes a first metal layer and a second metal layer disposed on the first metal layer. The second conductor layer includes a third metal layer and a fourth metal layer disposed on the third metal layer. The second metal layer has a lower reflectivity than the first metal layer. The fourth metal layer has a lower reflectivity lower than the third metal layer.
    Type: Application
    Filed: December 30, 2015
    Publication date: October 6, 2016
    Inventors: Chang Oh JEONG, Hyun Eok SHIN, Su Kyoung YANG, Chan Woo YANG, Dong Min LEE
  • Patent number: 9431426
    Abstract: The present invention provides a thin film transistor array panel comprising an insulating substrate; a gate line formed on the insulating substrate; a gate insulating layer formed on the gate line; a drain electrode and a data line having a source electrode formed on the gate insulating layer, the drain electrode being adjacent to the source electrode with a gap therebetween; and a pixel electrode coupled to the drain electrode, wherein at least one of the gate line, the data line, and the drain electrode comprises a first conductive layer comprising a conductive oxide and a second conductive layer comprising copper (Cu).
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: August 30, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Je Hun Lee, Yang Ho Bae, Beom-Seok Cho, Chang Oh Jeong
  • Patent number: 9410234
    Abstract: Provided are a sputtering device and a method of forming a layer using the same. The method of forming a layer using the sputtering device includes: placing a substrate within a chamber; depositing target particles emitted from a target, which faces the substrate, on the substrate using a sputtering process; and horizontally moving a plurality of shield rods, which are installed in a shield mask disposed between the substrate and the target and are separated from each other along a first direction, during the sputtering process.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: August 9, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Ju Kang, Sang Woo Sohn, Sang Won Shin, Dong Hee Lee, Chang Oh Jeong
  • Patent number: 9405163
    Abstract: A thin film transistor substrate includes a base substrate and a thin film transistor. The base substrate includes a gate line and a data line. The thin film transistor is connected to the gate line and the data line. The thin film transistor includes a gate electrode, a semiconductor pattern and source, drain electrodes. The gate electrode is disposed on the base substrate. The semiconductor pattern overlaps with the gate electrode. The source, drain electrodes is spaced apart from each other. The source electrode includes a first source layer, a second source layer disposed on the first source layer and a first diffusion barrier disposed between the first source layer and second source layer. The drain electrode includes a first drain layer, a second drain layer disposed on the first drain layer and a second diffusion barrier disposed between the first drain layer and second drain layer.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: August 2, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Ju Kang, Sang-Woo Sohn, Sang-Won Shin, Chang-Oh Jeong