Patents by Inventor Dong-Jo Kim

Dong-Jo Kim 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).

  • Publication number: 20150214380
    Abstract: A thin film transistor, a thin film transistor array panel including the same, and a method of manufacturing the same are provided, wherein the thin film transistor includes a channel region including an oxide semiconductor, a source region and a drain region connected to the channel region and facing each other at both sides with respect to the channel region, an insulating layer positioned on the channel region, and a gate electrode positioned on the insulating layer, wherein an edge boundary of the gate electrode and an edge boundary of the channel region are substantially aligned.
    Type: Application
    Filed: April 3, 2015
    Publication date: July 30, 2015
    Inventors: YONG SU LEE, YOON HO KHANG, DONG JO KIM, HYUN JAE NA, SANG HO PARK, SE HWAN YU, CHONG SUP CHANG
  • Publication number: 20150194534
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Inventors: Yong Su LEE, Yoon Ho KHANG, Dong Jo KIM, Hyun Jae NA, Sang Ho PARK, Se Hwan YU, Chong Sup CHANG, Dae Ho KIM, Jae Neung KIM, Myoung Geun CHA, Sang Gab KIM, Yu-Gwang JEONG
  • Patent number: 9034691
    Abstract: A thin film transistor, a thin film transistor array panel including the same, and a method of manufacturing the same are provided, wherein the thin film transistor includes a channel region including an oxide semiconductor, a source region and a drain region connected to the channel region and facing each other at both sides with respect to the channel region, an insulating layer positioned on the channel region, and a gate electrode positioned on the insulating layer, wherein an edge boundary of the gate electrode and an edge boundary of the channel region are substantially aligned.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: May 19, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang
  • Publication number: 20150108481
    Abstract: A thin film transistor includes a bottom gate electrode, a top gate electrode and an active pattern. The top gate electrode includes a transparent conductive material and overlaps with the bottom gate electrode. A boundary of the bottom gate electrode and a boundary of the top gate electrode are coincident with each other in a cross-sectional view. The active pattern includes a source portion, a drain portion and a channel portion disposed between the source portion and the drain portion. The channel portion overlaps with the bottom gate electrode and the top gate electrode.
    Type: Application
    Filed: August 5, 2014
    Publication date: April 23, 2015
    Inventors: YOON-HO KHANG, DONG-JO KIM, SU-HYOUNG KANG, YONG-SU LEE
  • Publication number: 20150084035
    Abstract: A thin film transistor includes: a substrate; an oxide semiconductor layer disposed on the substrate; a source electrode and a drain electrode each connected to the oxide semiconductor layer and facing each other with respect to the oxide semiconductor layer; an insulating layer disposed on the oxide semiconductor layer; and a gate electrode disposed on the insulating layer. The insulating layer includes a first layer that includes silicon oxide (SiOx), a second layer that is a hydrogen blocking layer, and a third layer that includes silicon nitride (SiNx). The first, second and third layers are sequentially stacked.
    Type: Application
    Filed: April 25, 2014
    Publication date: March 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dong Jo Kim, Ji Seon Lee, Deuk Myung Ji, Yoon Ho Khang, Kyung Seop Kim, Byeong-Beom Kim, Joon Yong Park
  • Patent number: 8987047
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gab Kim, Yu-Gwang Jeong
  • Publication number: 20150060843
    Abstract: A display substrate and a method for manufacturing a display substrate are disclosed. In the method, a gate electrode is formed on a base substrate. An active pattern is formed using an oxide semiconductor. The active pattern partially overlaps the gate electrode. A first insulation layer pattern and a second insulation layer pattern are sequentially formed on the active pattern. The first insulation layer pattern and the second insulation layer pattern overlap the gate electrode. A third insulation layer is formed to cover the active pattern, the first insulation layer pattern and the second insulation layer pattern. Either the first insulation layer pattern or the second insulation layer pattern includes aluminum oxide. Forming the first insulation layer pattern and the second insulation layer pattern includes performing a backside exposure process using the gate electrode as an exposure mask.
    Type: Application
    Filed: February 18, 2014
    Publication date: March 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jong-Chan LEE, Yoon-Ho Khang, Su-Hyoung Kang, Dong-Jo Kim, Ji-Seon Lee, Myoung-Geun Cha, Deuk-Myung Ji
  • Publication number: 20150021602
    Abstract: A thin film transistor array panel and a manufacturing method capable of forming an insulating layer made of different materials for a portion contacting an oxide semiconductor and a second portion without an additional process. Source and drain electrodes of the thin film transistor each include a lower layer and an upper layer. A first passivation layer contacts the lower layer of the source and drain electrodes but does not contact the upper layer of the source and drain electrodes, and a second passivation layer is disposed on the upper layer of the source and drain electrodes. The first passivation layer may be made of silicon oxide, and the second passivation may be made of silicon nitride.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 22, 2015
    Inventors: Su-Hyoung KANG, Yoon Ho KHANG, Dong Jo KIM, Hyun Jae NA
  • Patent number: 8884291
    Abstract: A thin film transistor array panel and a manufacturing method capable of forming an insulating layer made of different materials for a portion contacting an oxide semiconductor and a second portion without an additional process. The thin film transistor array panel includes: a gate electrode; a source electrode and a drain electrode spaced apart from each other, each of the source and drain electrodes comprising a lower layer and an upper layer; an insulating layer disposed between the gate electrode and the source and drain electrodes; a semiconductor, the source electrode and the drain electrode being electrically connected to the semiconductor; a first passivation layer contacting the lower layer of the source and drain electrodes but not contacting the upper layer of the source and drain electrodes; and a second passivation layer disposed on the upper layer of the source and drain electrodes.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: November 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Su-Hyoung Kang, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na
  • Publication number: 20140300106
    Abstract: The present invention relates to a pipe joint structure for a semiconductor processing, comprising: a first pipe joint; a second pipe joint; a gasket inserted into adjacent surfaces of the first pipe joint and the second pipe joint; and a screw for bringing the adjacent surfaces of the first pipe joint and the second pipe joint into close contact with the gasket, wherein the first pipe joint has an annular indented groove formed in the center of the adjacent surface thereof, the second pipe joint has a protrusion portion formed on the adjacent surface thereof so as to correspond to the indented groove, and the gasket has a second protrusion portion and a second indented groove which are respectively formed on both side surfaces thereof so as to correspond to the indented groove and the protrusion portion.
    Type: Application
    Filed: June 6, 2014
    Publication date: October 9, 2014
    Inventors: Dong-jo Kim, Jae-hwang Jang, Jong-bae Park
  • Patent number: 8853704
    Abstract: A thin film transistor, a thin film transistor array panel including the same, and a method of manufacturing the same are provided, wherein the thin film transistor includes a channel region including an oxide semiconductor, a source region and a drain region connected to the channel region and facing each other at both sides with respect to the channel region, an insulating layer positioned on the channel region, and a gate electrode positioned on the insulating layer, wherein an edge boundary of the gate electrode and an edge boundary of the channel region are substantially aligned.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang
  • Publication number: 20140239295
    Abstract: Provided are a zinc oxide-based sputtering target, a method of preparing the same, and a thin film transistor including a barrier layer deposited by the zinc oxide-based sputtering target. The zinc oxide-based sputtering target includes a sintered body that is composed of zinc oxide in which indium oxide is doped in a range from about 1% w/w to about 50% w/w. A backing plate is coupled to a back of the sintered body. The backing plate supports the sintered body.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Woo PARK, Dong-Jo Kim, Ju-Ok Park, In-Sung Sohn, Sang-Won Yoon, Gun-Hyo Lee, Yong-Jin Lee, Yoon-Gyu Lee, Do-Hyun Kim, Woo-Seok Jeon
  • Publication number: 20140175429
    Abstract: A thin film transistor array panel may include a channel layer including an oxide semiconductor and formed in a semiconductor layer, a source electrode formed in the semiconductor layer and connected to the channel layer at a first side, a drain electrode formed in the semiconductor layer and connected to the channel layer at an opposing second side, a pixel electrode formed in the semiconductor layer in a same portion of the semiconductor layer as the drain electrode, an insulating layer disposed on the channel layer, a gate line including a gate electrode disposed on the insulating layer, a passivation layer disposed on the source and drain electrodes, the pixel electrode, and the gate line, and a data line disposed on the passivation layer. A width of the channel layer may be substantially equal to a width of the pixel electrode in a direction parallel to the gate line.
    Type: Application
    Filed: November 4, 2013
    Publication date: June 26, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: DONG JO KIM, Ji Seon Lee, Jong Chan Lee, Yoon Ho Khang, Sang Ho Park, Yong Su Lee, Jung Kyu Lee
  • Publication number: 20140167040
    Abstract: A thin film transistor according to an exemplary embodiment of the present invention includes an oxide semiconductor. A source electrode and a drain electrode face each other. The source electrode and the drain electrode are positioned at two opposite sides, respectively, of the oxide semiconductor. A low conductive region is positioned between the source electrode or the drain electrode and the oxide semiconductor. An insulating layer is positioned on the oxide semiconductor and the low conductive region. A gate electrode is positioned on the insulating layer. The insulating layer covers the oxide semiconductor and the low conductive region. A carrier concentration of the low conductive region is lower than a carrier concentration of the source electrode or the drain electrode.
    Type: Application
    Filed: February 19, 2014
    Publication date: June 19, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang, Dae Ho Kim, Jae Neung Kim, Myoung Geun Cha, Sang Gab Kim, Yu-Gwang Jeong
  • Publication number: 20140151683
    Abstract: A thin film transistor includes an oxide semiconductor, in which an oxygen defect content of the oxide semiconductor is no greater than about 0.15 based on an entire oxygen content included in the oxide semiconductor.
    Type: Application
    Filed: April 30, 2013
    Publication date: June 5, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sang Ho Park, Su-Hyoung Kang, Yoon Ho Khang, Dong Jo Kim, Joon Yong Park, Sang Won Shin, Dong Hwan Shim
  • Publication number: 20140145177
    Abstract: A thin film transistor substrate includes the following elements: a base substrate, a data line disposed on the base substrate, a source electrode contacting the data line, a drain electrode spaced from the source electrode, a channel disposed between the source electrode and the drain electrode, a pixel electrode electrically connected to the drain electrode, a gate insulation pattern disposed on the channel, and a gate electrode disposed on the gate insulation pattern.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 29, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Seon LEE, Dong-Jo KIM, Yoon-Ho KHANG, Yong-Su LEE, Jong-Chan LEE
  • Publication number: 20140138684
    Abstract: A thin film transistor, a thin film transistor array panel including the same, and a method of manufacturing the same are provided, wherein the thin film transistor includes a channel region including an oxide semiconductor, a source region and a drain region connected to the channel region and facing each other at both sides with respect to the channel region, an insulating layer positioned on the channel region, and a gate electrode positioned on the insulating layer, wherein an edge boundary of the gate electrode and an edge boundary of the channel region are substantially aligned.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: YONG SU LEE, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang
  • Publication number: 20140118656
    Abstract: A liquid crystal display includes a transparent insulation substrate, a first polarizer, and a semiconductor layer, a thin film transistor, and a backlight unit. The first polarizer is disposed on the transparent insulation substrate. The first polarizer includes a light blocking film and metal wires. The semiconductor layer, disposed on the light blocking film, has a perimeter aligned with a perimeter of the light blocking film. The thin film transistor, disposed on the semiconductor layer, includes a source region and a drain region disposed in the semiconductor layer. The backlight unit, disposed under the transparent insulation substrate, provides light to the transparent insulation substrate. The blocking film reflects substantially all of the light. Gaps are disposed between the metal wires.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dae Hwan Jang, Sang Ho Park, Dong Jo Kim, Jung Gun Nam, Dae-Young Lee, Gug Rae Jo
  • Patent number: 8664654
    Abstract: A thin film transistor, a thin film transistor array panel including the same, and a method of manufacturing the same are provided, wherein the thin film transistor includes a channel region including an oxide semiconductor, a source region and a drain region connected to the channel region and facing each other at both sides with respect to the channel region, an insulating layer positioned on the channel region, and a gate electrode positioned on the insulating layer, wherein an edge boundary of the gate electrode and an edge boundary of the channel region are substantially aligned.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: March 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Su Lee, Yoon Ho Khang, Dong Jo Kim, Hyun Jae Na, Sang Ho Park, Se Hwan Yu, Chong Sup Chang
  • Patent number: 8639021
    Abstract: An apparatus and method capable of calculating a coordinate transformation parameter without having to utilize a rig are provided. The apparatus and method extract a first feature point based on a plane of first data, project the first feature point onto second data and then extract a second feature point from a part of the second data onto which the first feature point is projected. Then, calibration is performed based on the extracted feature points. Therefore, it is possible to perform calibration immediately as necessary without having to utilize a separate device such as a rig.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: January 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Jo Kim, Dong-Ryeol Park