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).

  • Patent number: 7956947
    Abstract: A thin film transistor array substrate, which can have high mobility of charge and can achieve uniform electrical characteristics for wide display devices, and a method of manufacturing the thin film transistor array substrate, are provided. The thin film transistor array substrate includes an oxide semiconductor layer having a channel and formed on an insulating substrate, a gate electrode overlapping the oxide semiconductor layer, a gate insulating film disposed between the oxide semiconductor layer and the gate electrode, and a passivation film formed on the oxide semiconductor layer and the gate electrode. At least one of the gate insulating film and the passivation film contains fluorine-containing silicon.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: June 7, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Kap-Soo Yoon, Kyung-Seok Son, Do-Hyun Kim, Chang-Oh Jeong
  • Publication number: 20110124163
    Abstract: A manufacturing method of a thin film transistor (TFT) includes forming a gate electrode including a metal that can be combined with silicon to form silicide on a substrate and forming a gate insulation layer by supplying a gas which includes silicon to the gate electrode at a temperature below about 280° C. The method further includes forming a semiconductor on the gate insulation layer, forming a data line and a drain electrode on the semiconductor and forming a pixel electrode connected to the drain electrode.
    Type: Application
    Filed: February 3, 2011
    Publication date: May 26, 2011
    Inventors: Byoung-June KIM, Jae-Ho Choi, Chang-Oh Jeong, Sung-Hoon Yang, Je-Hun Lee, Do-Hyun Kim, Hwa-Yeul Oh, Yong-Mo Choi
  • Patent number: 7928441
    Abstract: Disclosed is display part such as a TFT array panel comprising an aluminum layer, and a molybdenum layer formed on the aluminum layer. The thickness of the molybdenum layer may be about 10% to about 40% the thickness of the aluminum layer. As a result, a top surface of the aluminum layer may have a width about equal to a bottom surface of the molybdenum layer. Accordingly, it is an aspect of the present invention to provide a TFT array panel comprising an aluminum wiring on which aluminum protrusion is reduced or eliminated.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: April 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-hun Lee, Chang-ob Jeong, Jin-kwan Kim, Yang-bo Bae, Beom-seok Cho, Jun-hyung Souk
  • Patent number: 7923287
    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: Grant
    Filed: December 6, 2007
    Date of Patent: April 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Guk Lee, Do-Hyun Kim, Chang-Oh Jeong, Je-Hun Lee, Soon-Kwon Lim
  • Patent number: 7919795
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate and a method for fabricating a TFT substrate. The wire structure includes a barrier layer formed on a substrate and including copper, copper solid solution layer.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Chang-Oh Jeong, Eun-Guk Lee, Do-Hyun Kim
  • Patent number: 7915650
    Abstract: A thin-film transistor includes a semiconductor pattern, source and drain electrodes and a gate electrode, the semiconductor pattern is formed on a base substrate, and the semiconductor pattern includes metal oxide. The source and drain electrodes are formed on the semiconductor pattern such that the source and drain electrodes are spaced apart from each other and an outline of the source and drain electrodes is substantially same as an outline of the semiconductor pattern. The gate electrode is disposed in a region between the source and drain electrodes such that portions of the gate electrode are overlapped with the source and drain electrodes. Therefore, leakage current induced by light is minimized. As a result, characteristics of the thin-film transistor are enhanced, after-image is reduced to enhance display quality, and stability of manufacturing process is enhanced.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 29, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je Hun Lee, Do Hyun Kim, Eun Guk Lee, Chang Oh Jeong
  • Publication number: 20110065220
    Abstract: The present invention provides a thin film transistor array panel comprising: an insulating substrate; a gate line formed on the insulating substrate and having a gate electrode; a gate insulating layer formed on the gate line; a semiconductor formed on the gate insulating layer and overlapping the gate electrode; diffusion barriers formed on the semiconductor and containing nitrogen; a data line crossing the gate line and having a source electrode partially contacting the diffusion barriers; a drain electrode partially contacting the diffusion barriers and facing the source electrode on the gate electrode; and a pixel electrode electrically connected to the drain electrode.
    Type: Application
    Filed: November 22, 2010
    Publication date: March 17, 2011
    Inventors: Je-Hun LEE, Beom-Seok Cho, Chang-Oh Jeong, Joo-Han Kim
  • Patent number: 7902553
    Abstract: A manufacturing method of a thin film transistor (TFT) includes forming a gate electrode including a metal that can be combined with silicon to form silicide on a substrate and forming a gate insulation layer by supplying a gas which includes silicon to the gate electrode at a temperature below about 280° C. The method further includes forming a semiconductor on the gate insulation layer, forming a data line and a drain electrode on the semiconductor and forming a pixel electrode connected to the drain electrode.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoung-June Kim, Jae-Ho Choi, Chang-Oh Jeong, Sung-Hoon Yang, Je-Hun Lee, Do-Hyun Kim, Hwa-Yeul Oh, Yong-Mo Choi
  • Publication number: 20110047792
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate, and a method for fabricating a TFT substrate.
    Type: Application
    Filed: November 9, 2010
    Publication date: March 3, 2011
    Inventors: Je-hun LEE, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Patent number: 7863607
    Abstract: The disclosed thin film transistor array panel includes an insulating substrate, a channel layer including an oxide formed on the insulating substrate. A gate insulating is layer formed on the channel layer and a gate electrode is formed on the gate insulating layer. An interlayer insulating layer is formed on the gate electrode and a data line formed on the interlayer insulating layer and includes a source electrode, wherein the data line is made of a first conductive layer and a second conductive layer. A drain electrode formed on the interlayer insulating layer, and includes the first conductive layer and the second conductive layer. A pixel electrode extends from the first conductive layer of the drain electrode and a passivation layer formed on the data line and the drain electrode. A spacer formed on the passivation layer.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: January 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Do-Hyun Kim, Chang-Oh Jeong
  • Patent number: 7858982
    Abstract: The present invention provides a thin film transistor array panel comprising: an insulating substrate; a gate line formed on the insulating substrate and having a gate electrode; a gate insulating layer formed on the gate line; a semiconductor formed on the gate insulating layer and overlapping the gate electrode; diffusion barriers formed on the semiconductor and containing nitrogen; a data line crossing the gate line and having a source electrode partially contacting the diffusion barriers; a drain electrode partially contacting the diffusion barriers and facing the source electrode on the gate electrode; and a pixel electrode electrically connected to the drain electrode.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: December 28, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Beom-Seok Cho, Chang-Oh Jeong, Joo-Han Kim
  • Patent number: 7851920
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate, and a method for fabricating a TFT substrate. The wire structure includes a barrier layer formed on a substrate and including copper nitride and a copper conductive layer formed on the barrier layer and including copper or a copper alloy.
    Type: Grant
    Filed: July 15, 2006
    Date of Patent: December 14, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-hun Lee, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Patent number: 7843518
    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: Grant
    Filed: October 22, 2007
    Date of Patent: November 30, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Hoon Yang, So-Woon Kim, Chong-Chul Chai, Chang-Oh Jeong, Eun-Guk Lee, Je-Hun Lee
  • Publication number: 20100283050
    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: May 5, 2010
    Publication date: November 11, 2010
    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: 20100276686
    Abstract: A thin film transistor (TFT) substrate and a method of fabricating the same are provided. The thin film transistor substrate may have low resistance characteristics and may have reduced mutual diffusion and contact resistance between an active layer pattern and data wiring. The thin film transistor substrate may include gate wiring formed on an insulating substrate. Oxide active layer patterns may be formed on the gate wiring and may include a first substance. Data wiring may be formed on the oxide active layer patterns to cross the gate wiring and may include a second substance. Barrier layer patterns may be disposed between the oxide active layer patterns and the data wiring and may include a third substance.
    Type: Application
    Filed: April 8, 2010
    Publication date: November 4, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dong-Hoon Lee, Je-Hun Lee, Do-Hyun Kim, Hee-Tae Kim, Chang-Oh Jeong, Pil-Sang Yun, Ki-Won Kim
  • Patent number: 7811868
    Abstract: A method for manufacturing a thin film transistor array panel includes forming a gate line on a substrate; sequentially forming a gate insulating layer, a silicon layer, and a conductor layer including a lower layer and an upper layer on the gate line, forming a photoresist film, on the conductor layer, patterning the photoresist film to form a photoresist pattern including a first portion and a second portion having a greater thickness than the first portion, etching the upper layer and the lower layer by using the photoresist pattern as art etch mask, etching the silicon layer by using the photoresist pattern as an etch mask to form a semiconductor, removing the second portion of the photoresist pattern by using an etch back process, selectively wet-etching the upper layer of the conductor layer by using the photoresist pattern as an etch mask, dry-etching the lower layer of the conductor layer by using the photoresist pattern as an etch mask to form a data line and a drain electrode including remaining upp
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 12, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do-Hyun Kim, Won-Suk Shin, Chang-Oh Jeong, Hong-Sick Park, Eun-Guk Lee, Je-Hun Lee
  • Patent number: 7808108
    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: Grant
    Filed: August 11, 2006
    Date of Patent: October 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beom-seok Cho, Je-hun Lee, Chang-oh Jeong, Yang-ho Bae
  • Patent number: 7804801
    Abstract: Provided are a QR decomposition apparatus and method for a MIMO system. The QR decomposition apparatus includes: a norm calculator for calculating a vector size norm for a channel input; a Q column calculator for calculating a column value of a unitary matrix Q by multiplying a delayed channel input with ?{square root over (norm)}; an R row calculator for receiving the delayed channel input, the output of the Q column calculator, and 1/?{square root over (norm)}, and calculating a row value of an upper triangular matrix R; a Q update calculator for receiving the delayed channel input, the output of the R row calculator, and a delayed output of the Q column calculator, and calculating a Q update matrix value; and a norm update calculator for receiving a delayed output of the norm calculator and an output of the R row calculator, and outputting a norm update matrix value.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: September 28, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yu-Ro Lee, Byung-Chan Kim, Minho Cheong, Chanho Yoon, Je-Hun Lee, Kwhang-Hyun Ryu, Cheol-Jung Kim, Tae-Hyun Jeon, Sok-Kyu Lee
  • Patent number: 7772021
    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: Grant
    Filed: November 29, 2007
    Date of Patent: August 10, 2010
    Assignee: Samsung Electronics Co., Ltd.
    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
  • Patent number: 7767478
    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: February 14, 2008
    Date of Patent: August 3, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Yang-Ho Bae, Beom-Seok Cho, Chang-Oh Jeong