Patents by Inventor Je-Hun Lee

Je-Hun 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).

  • Publication number: 20080142797
    Abstract: A thin film transistor substrate and a method of manufacturing the same are disclosed. The method of manufacturing a thin film transistor substrate includes forming a first conductive pattern group including a gate line, a gate electrode, and a lower gate pad electrode on a substrate, forming a gate insulating layer on the substrate on which the first conductive pattern group is formed, forming an oxide semiconductor pattern overlapping the gate electrode on the gate insulating layer, and forming first and second conductive layers on the substrate on which the oxide semiconductor pattern is formed and patterning the first and second conductive layers to form a second conductive pattern group including a data line, a source electrode, a drain electrode, and a data pad.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 19, 2008
    Inventors: Eun-Guk Lee, Do-Hyun Kim, Chang-Oh Jeong, Je-Hun Lee, Soon-Kwon Lim
  • Publication number: 20080138942
    Abstract: The invention provides a thin film transistor (TFT) array panel that includes an insulating substrate; a gate line formed on the insulating substrate and having a first layer of an Al containing metal, a second layer of a Cu containing metal that is thicker than the first layer, and a gate electrode; a gate insulating layer arranged on the gate line; a semiconductor arranged on the gate insulating layer; a data line having a source electrode and arranged on the gate insulating layer and the semiconductor; a drain electrode arranged on the gate insulating layer and the semiconductor and facing the source electrode; a passivation layer having a contact hole and arranged on the data line and the drain electrode; and a pixel electrode arranged on the passivation layer and coupled with the drain electrode through the contact hole.
    Type: Application
    Filed: February 14, 2008
    Publication date: June 12, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je-Hun LEE, Yang-Ho BAE, Beom-Seok CHO, Chang-Oh JEONG
  • Publication number: 20080128689
    Abstract: Provided is a method of fabricating a semiconductive oxide thin-film transistor (TFT) substrate. The method includes forming gate wiring on an insulation substrate; and forming a structure in which a semiconductive oxide film pattern and data wiring are stacked on the gate wiring, wherein the semiconductive oxide film pattern is selectively patterned to have channel regions of first thickness and source/drain regions of greater second thickness and where image data is coupled to the source regions by data wiring formed on the source regions. According to a 4-mask embodiment, the data wiring and semiconductive oxide film pattern are defined by a shared etch mask.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 5, 2008
    Inventors: Je-hun Lee, Dong-ju Yang, Tae-hyung Ihn, Do-hyun Kim, Sun-young Hong, Seung-jae Jung, Chang-oh Jeong, Eun-guk Lee
  • Publication number: 20080123039
    Abstract: In a liquid crystal display, an adhesion layer is provided between an insulating substrate and a wiring feature having very low resistance (e.g. a copper gate line). The adhesion layer may have a thickness of 190 to 210 nm. Good adhesion and high light transmittance can be obtained.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 29, 2008
    Inventors: Eun-guk Lee, Je-hun Lee, Do-hyun Kim, Chang-oh Jeong
  • Publication number: 20080099765
    Abstract: A thin film transistor substrate and fabricating method thereof, the thin film transistor substrate including a substrate, a gate line and a gate electrode, each including a metal adhesion layer and a Cu alloy layer disposed on the substrate, an active layer and an ohmic contact layer disposed over the gate electrode, a gate insulating layer disposed between the gate electrode and the active and ohmic contact layers, source and drain electrodes disposed on the ohmic contact layer, and a data line connected to the source electrode.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 1, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.,
    Inventors: Do-Hyun KIM, Je-Hun LEE, Chang-Oh JEONG
  • Publication number: 20080100788
    Abstract: A display substrate includes respective pluralities of gate lines, data lines, switching elements, storage lines, pixel electrodes, and an organic insulation layer. The gate lines and the data lines define a plurality of unit pixels. The storage lines are respectively formed adjacent to the respective drain electrodes of the respective switching elements of respective rows of the unit pixels. The organic insulation layer has a hole that is formed within the area of each of the unit pixels and that extends from a contact area formed at a portion of the corresponding drain electrode of the pixel to a portion corresponding to the storage line thereof. This arrangement enables the marginal area needed to prevent mismatch of the hole in the areas of the contact area and the storage line to be reduced, thereby increasing the aperture ratio of the display.
    Type: Application
    Filed: October 22, 2007
    Publication date: May 1, 2008
    Inventors: Sung-Hoon Yang, So-Woon Kim, Chong-Chul Chai, Chang-Oh Jeong, Eun-Guk Lee, Je-Hun Lee
  • Patent number: 7352004
    Abstract: The invention provides a thin film transistor (TFT) array panel that includes an insulating substrate; a gate line formed on the insulating substrate and having a first layer of an Al containing metal, a second layer of a Cu containing metal that is thicker than the first layer, and a gate electrode; a gate insulating layer arranged on the gate line; a semiconductor arranged on the gate insulating layer; a data line having a source electrode and arranged on the gate insulating layer and the semiconductor; a drain electrode arranged on the gate insulating layer and the semiconductor and facing the source electrode; a passivation layer having a contact hole and arranged on the data line and the drain electrode; and a pixel electrode arranged on the passivation layer and coupled with the drain electrode through the contact hole.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: April 1, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Yang-Ho Bae, Beom-Seok Cho, Chang-Oh Jeong
  • Publication number: 20080073674
    Abstract: The present invention provides a TFT array panel and a manufacturing method of the same, which has signal lines including a lower layer of an Al containing metal and an upper layer of a molybdenum alloy (Mo-alloy) comprising molybdenum (Mo) and at least one of niobium (Nb), vanadium (V), and titanium (Ti). Accordingly, undercut, overhang, and mouse bites which may arise in an etching process, are prevented, and TFT array panels that have signal lines having low resistivity and good contact characteristics are provided.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 27, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Beom-Seok Cho, Yang-Ho Bae, Je-Hun Lee, Chang-Oh Jeong
  • Publication number: 20080017862
    Abstract: An array substrate includes a switching element, a signal transmission line, a passivation layer and a pixel electrode. The switching element is disposed on an insulating substrate. The signal transmission line is connected to the switching element and includes a barrier layer, a conductive line, and a copper nitride layer. The barrier layer is disposed on the insulating substrate. The conductive line is disposed on the barrier layer and includes copper or copper alloy. The copper nitride layer covers the conductive line. The passivation layer covers the switching element and the signal transmission line and has a contact hole through which a drain electrode of the switching element is partially exposed. The pixel electrode is disposed on the insulating substrate, and is connected to the drain electrode of the switching element through the contact hole.
    Type: Application
    Filed: July 18, 2007
    Publication date: January 24, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je-Hun LEE, Do-Hyun KIM, Eun-Guk LEE, Chang-Oh JEONG
  • Publication number: 20070289769
    Abstract: A multi-layer wiring for use with thin film transistors (TFTs), methods of manufacturing the multi-layer wiring, and TFTs employing the multi-layer wiring are provided. In one embodiment, the multi-layer wiring includes a main wiring and a sub-wiring on the main wiring. The main wiring includes a first metal and the sub-wiring includes an alloy wherein a majority of the alloy is the first metal. The multi-layer wiring can exhibit decreased electrical resistance and a reduced tendency to develop malfunctions such as hillocks or spiking. The multi-layer wiring can also exhibit improved contact characteristics with other conductive elements of TFT display devices.
    Type: Application
    Filed: August 23, 2007
    Publication date: December 20, 2007
    Inventors: Je-Hun Lee, Beom-Seok Cho, Chang-Oh Jeong, Yang-Ho Bae
  • Patent number: 7301170
    Abstract: The present invention provides a TFT array panel and a manufacturing method of the same, which has signal lines including a lower layer of an Al containing metal and an upper layer of a molybdenum alloy (Mo-alloy) comprising molybdenum (Mo) and at least one of niobium (Nb), vanadium (V), and titanium (Ti). Accordingly, undercut, overhang, and mouse bites which may arise in an etching process, are prevented, and TFT array panels that have signal lines having low resistivity and good contact characteristics are provided.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: November 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beom-Seok Cho, Yang-Ho Bae, Je-Hun Lee, Chang-Oh Jeong
  • Publication number: 20070236641
    Abstract: A method of fabricating a thin film transistor (TFT) substrate includes forming a gate line and a data line on an insulating substrate. The data line crosses the gate line and is insulated from the gate line. The formation of the gate line, the data line, or both the gate line and the data line includes forming a low-resistive conductive pattern on a base pattern using an electroless plating method.
    Type: Application
    Filed: April 3, 2007
    Publication date: October 11, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong-Long NING, Chang-Oh JEONG, Je-Hun LEE, Do-Hyun KIM, Sung-Hen CHO, Ki-Yong SONG, Chang-Ho NOH
  • Patent number: 7276732
    Abstract: A thin film transistor array panel includes a source electrode and a drain electrode composed of a Mo alloy layer and a Cu layer, and an alloying element of the Mo alloy layer forms a nitride layer as a diffusion barrier against the Cu layer. The nitride layer can be formed between the Mo alloy layer and the Cu layer, between the Mo alloy layer and the semiconductor layer or in the Mo alloy layer. A method of fabricating a thin film transistor array panel includes forming a data line having a first conductive layer and a second conductive layer, the first conductive layer containing a Mo alloy and the second conductive layer containing Cu, and performing a nitrogen treatment so that an alloying element in the first conductive layer forms a nitride layer. The nitrogen treatment can be performed before forming the first conductive layer, after forming the first conductive layer, or during forming the first conductive layer.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: October 2, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je Hun Lee, Yang Ho Bae, Beom Seok Cho, Chang Oh Jeong
  • Publication number: 20070158652
    Abstract: An improved display substrate is provided to reduce surface defects on insulating layers of organic thin film transistors. Related methods of manufacture are also provided. In one example, a display substrate includes a base, a plurality of data lines, a plurality of gate lines, a pixel defined by the data lines and the gate lines, an organic thin film transistor, and a pixel electrode. The data lines are on the base and are oriented in a first direction. The gate lines are oriented in a second direction that crosses the first direction. The organic thin film transistor includes a source electrode electrically connected to one of the data lines, a gate electrode electrically connected to one of the gate lines, and an organic semiconductor layer. The pixel electrode is disposed in the pixel and electrically connected to the organic thin film transistor. The pixel electrode comprises a transparent oxynitride.
    Type: Application
    Filed: December 27, 2006
    Publication date: July 12, 2007
    Inventors: Je-Hun Lee, Young-Min Kim, Bo-Sung Kim, Jun-Young Lee, Sung-Wook Kang
  • Publication number: 20070122649
    Abstract: A conductive structure containing copper is capable of being etched to have a reliable profile where the copper layer is free of corrosion or oxidation includes a barrier layer formed on an insulating or semiconductor substrate followed by a copper layer, a blocking layer and a capping layer. The copper layer includes copper or copper alloy. The barrier layer includes molybdenum (Mo), molybdenum nitride (MoN) or molybdenum alloy which includes at least one of MoW, MoTi, MoNb or MoZr. The blocking layer includes copper nitride, copper oxide or copper oxinitride. The capping layer includes molybdenum, molybdenum nitride (MoN) or molybdenum alloy which includes at least one of MoW, MoTi, MoNb and MoZr.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 31, 2007
    Inventors: Je-Hun Lee, Shi-Yul Kim, Do-Hyun Kim, Byeong-Beom Kim, Chang-Oh Jeong, Jun-Young Lee, Yang-Ho Bae, Sung-Wook Kang
  • Publication number: 20070102770
    Abstract: A method of manufacturing a thin film transistor array panel including forming a gate line on a substrate, forming a gate insulating layer on the gate line, forming a semiconductor layer on the gate insulating layer, forming a data line and a drain electrode on the semiconductor layer, depositing a passivation layer on the data line and the drain electrode, forming a photoresist including a first portion and a second portion, which is thinner than the first portion, on the passivation layer, etching the passivation layer using the photoresist as a mask to expose a portion of the drain electrode, removing the second portion of the photoresist, depositing a conductive film, and removing the first portion of the photoresist to form a pixel electrode on the exposed portion of the drain electrode.
    Type: Application
    Filed: January 3, 2007
    Publication date: May 10, 2007
    Inventors: Woo-Geun Lee, Beom-Seok Cho, Je-Hun Lee, Chang-Oh Jeong, Sang-Gab Kim, Min-Seok Oh, Young-Wook Lee, Hee-Hwan Choe
  • Publication number: 20070082434
    Abstract: The present invention relates to a manufacturing method of a thin film transistor array panel. the method includes forming a gate line including a gate electrode on a substrate, forming a first insulating layer on the gate line, forming a semiconductor layer on the first insulating layer, forming an ohmic contact on the semiconductor layer, forming a data line including a source electrode and a drain electrode on the ohmic contact, depositing a second insulating layer, forming a first photoresist on the second insulating layer, etching the second insulating layer and the first insulating layer using the first photoresist as an etching mask to expose a portion of the drain electrode and a portion of the substrate, forming a pixel electrode connected to an exposed portion of the drain electrode using selective deposition, and removing the first photoresist.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 12, 2007
    Inventors: Yang-Ho Bae, Chang-Oh Jeong, Je-Hun Lee, Beom-Seok Cho
  • Publication number: 20070040954
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate, and a method for fabricating the TFT substrate. The wire structure includes an underlying layer including a silver oxide formed on a lower structure, and a silver conductive layer including silver or a silver alloy formed on the underlying layer.
    Type: Application
    Filed: May 25, 2006
    Publication date: February 22, 2007
    Inventors: Je-hun Lee, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Publication number: 20070034954
    Abstract: A thin film conductor having improved adhesion and superior conductivity, a method for fabricating the same, a thin film transistor (TFT) plate including the thin film conductor, and a method for fabricating the TFT plate are provided. The thin film conductor includes an adhesive layer containing an oxidation-reactive metal or silicidation-reactive metal and silver, a silver conductive layer formed on the adhesive layer, and a protection layer formed on the silver conductive layer and containing an oxidation-reactive metal and silver.
    Type: Application
    Filed: August 11, 2006
    Publication date: February 15, 2007
    Inventors: Beom-seok Cho, Je-hun Lee, Chang-oh Jeong, Yang-ho Bae
  • Patent number: 7172913
    Abstract: A method of manufacturing a thin film transistor array panel including forming a gate line on a substrate, forming a gate insulating layer on the gate line, forming a semiconductor layer on the gate insulating layer, forming a data line and a drain electrode on the semiconductor layer, depositing a passivation layer on the data line and the drain electrode, forming a photoresist including a first portion and a second portion, which is thinner than the first portion, on the passivation layer, etching the passivation layer using the photoresist as a mask to expose a portion of the drain electrode, removing the second portion of the photoresist, depositing a conductive film, and removing the first portion of the photoresist to form a pixel electrode on the exposed portion of the drain electrode.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: February 6, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Geun Lee, Beom-Seok Cho, Je-Hun Lee, Chang-Oh Jeong, Sang-Gab Kim, Min-Seok Oh, Young-Wook Lee, Hee-Hwan Choe