Patents by Inventor Seung-Ha Choi

Seung-Ha Choi 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: 9520412
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: December 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Pil-Sang Yun, Ki-Won Kim, Hye-Young Ryu, Woo-Geun Lee, Seung-Ha Choi, Jae-Hyoung Youn, Kyoung-Jae Chung, Young-Wook Lee, Je-Hun Lee, Kap-Soo Yoon, Do-Hyun Kim, Dong-Ju Yang, Young-Joo Choi
  • Patent number: 9455278
    Abstract: A thin film transistor array panel includes: a gate line disposed on a substrate and including a first connection member of a gate driver region and a gate electrode of a display area, a gate insulating layer disposed on the substrate and having a first contact hole exposing the first connection member, a semiconductor layer disposed on a region of the gate insulating layer, a data line disposed on the gate insulating layer and the semiconductor layer and including a drain electrode, a source electrode, and a second connection member connected to the first connection member through the first contact hole, a passivation layer disposed on the data line, the source electrode, the drain electrode, and the second connection member, and a pixel electrode disposed on the passivation layer and electrically connected to the drain electrode. A horizontal width of the first contact hole ranges from 1 to 2 ?m.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sho Yeon Kim, Hyun Kim, Eun Hye Park, Byung Hwan Chu, Seung-Ha Choi
  • Patent number: 9443877
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: September 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Pil-Sang Yun, Ki-Won Kim, Hye-Young Ryu, Woo-Geun Lee, Seung-Ha Choi, Jae-Hyoung Youn, Kyoung-Jae Chung, Young-Wook Lee, Je-Hun Lee, Kap-Soo Yoon, Do-Hyun Kim, Dong-Ju Yang, Young-Joo Choi
  • Patent number: 9418861
    Abstract: Provided are a display substrate, a display device, and a method of manufacturing the display substrate. The display substrate includes: a substrate in which a pixel region is defined; a gate electrode and a gate pad are formed on the substrate; a gate insulating layer formed on the gate electrode and the gate pad; a buffer layer pattern overlaps the gate electrode and is formed on the gate insulating layer; an insulating film pattern formed on the buffer layer pattern; an oxide semiconductor pattern formed on the insulating film pattern; a source electrode formed on the oxide semiconductor pattern; and a drain electrode formed on the oxide semiconductor pattern and is separated from the source electrode.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung-Ha Choi, Kyoung-Jae Chung, Woo-Geun Lee
  • Publication number: 20160211281
    Abstract: A thin film transistor substrate includes a gate electrode, a channel layer overlapping the gate electrode, a source electrode overlapping the channel layer, a drain electrode overlapping the channel layer and the source electrode, and a spacer disposed between the source electrode and the drain electrode.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 21, 2016
    Inventors: Myung-Kwan Ryu, Eok-Su Kim, Kyoung Seok Son, Seung-Ha Choi, Sho-Yeon Kim, Hyun Kim, Eun-Hye Park, Byung-Hwan Chu
  • Publication number: 20160181284
    Abstract: A thin film transistor array panel includes: a gate line disposed on a substrate and including a first connection member of a gate driver region and a gate electrode of a display area, a gate insulating layer disposed on the substrate and having a first contact hole exposing the first connection member, a semiconductor layer disposed on a region of the gate insulating layer, a data line disposed on the gate insulating layer and the semiconductor layer and including a drain electrode, a source electrode, and a second connection member connected to the first connection member through the first contact hole, a passivation layer disposed on the data line, the source electrode, the drain electrode, and the second connection member, and a pixel electrode disposed on the passivation layer and electrically connected to the drain electrode. A horizontal width of the first contact hole ranges from 1 to 2 ?m.
    Type: Application
    Filed: February 25, 2016
    Publication date: June 23, 2016
    Inventors: SHO YEON KIM, HYUN KIM, EUN HYE PARK, BYUNG HWAN CHU, SEUNG-HA CHOI
  • Patent number: 9287297
    Abstract: A thin film transistor array panel includes: a gate line disposed on a substrate and including a first connection member of a gate driver region and a gate electrode of a display area, a gate insulating layer disposed on the substrate and having a first contact hole exposing the first connection member, a semiconductor layer disposed on a region of the gate insulating layer, a data line disposed on the gate insulating layer and the semiconductor layer and including a drain electrode, a source electrode, and a second connection member connected to the first connection member through the first contact hole, a passivation layer disposed on the data line, the source electrode, the drain electrode, and the second connection member, and a pixel electrode disposed on the passivation layer and electrically connected to the drain electrode. A horizontal width of the first contact hole ranges from 1 to 2 ?m.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: March 15, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sho Yeon Kim, Hyun Kim, Eun Hye Park, Byung Hwan Chu, Seung-Ha Choi
  • Patent number: 9184090
    Abstract: A TFT display panel having a high charge mobility and making it possible to obtain uniform electric characteristics with respect to a large-area display is provided as well as a manufacturing method thereof. A TFT display panel includes a gate electrode formed on an insulation substrate, a first gate insulting layer formed of SiNx on the gate electrode, a second gate insulting layer formed of SiOx on the first gate insulting layer, an oxide semiconductor layer formed to overlap the gate electrode and having a channel part, and a passivation layer formed of SiOx on the oxide semiconductor layer and the gate electrode, and the passivation layer includes a contact hole exposing the drain electrode. The contact hole has a shape in which the passivation layer of a portion directly exposed together with a metal occupies an area smaller than the upper passivation layer.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: November 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ha Choi, Kyoung-Jae Chung, Woo-Geun Lee
  • Publication number: 20150318312
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Application
    Filed: July 14, 2015
    Publication date: November 5, 2015
    Inventors: Pil-Sang Yun, Ki-Won Kim, Hye-Young Ryu, Woo-Geun Lee, Seung-Ha Choi, Jae-Hyoung Youn, Kyoung-Jae Chung, Young-Wook Lee, Je-Hun Lee, Kap-Soo Yoon, Do-Hyun Kim, Dong-Ju Yang, Young-Joo Choi
  • Publication number: 20150318317
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 5, 2015
    Inventors: Pil-Sang YUN, Ki-Won KIM, Hye-Young RYU, Woo-Geun LEE, Seung-Ha CHOI, Jae-Hyoung YOUN, Kyoung-Jae CHUNG, Young-Wook LEE, Je-Hun LEE, Kap-Soo YOON, Do-Hyun KIM, Dong-Ju YANG, Young-Joo CHOI
  • Patent number: 9111805
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: August 18, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Pil-Sang Yun, Ki-Won Kim, Hye-Young Ryu, Woo-Geun Lee, Seung-Ha Choi, Jae-Hyoung Youn, Kyoung-Jae Chung, Young-Wook Lee, Je-Hun Lee, Kap-Soo Yoon, Do-Hyun Kim, Dong-Ju Yang, Young-Joo Choi
  • Publication number: 20150200209
    Abstract: A thin film transistor array panel includes: a gate line disposed on a substrate and including a first connection member of a gate driver region and a gate electrode of a display area, a gate insulating layer disposed on the substrate and having a first contact hole exposing the first connection member, a semiconductor layer disposed on a region of the gate insulating layer, a data line disposed on the gate insulating layer and the semiconductor layer and including a drain electrode, a source electrode, and a second connection member connected to the first connection member through the first contact hole, a passivation layer disposed on the data line, the source electrode, the drain electrode, and the second connection member, and a pixel electrode disposed on the passivation layer and electrically connected to the drain electrode. A horizontal width of the first contact hole ranges from 1 to 2 ?m.
    Type: Application
    Filed: September 15, 2014
    Publication date: July 16, 2015
    Inventors: SHO YEON KIM, HYUN KIM, EUN HYE PARK, BYUNG HWAN CHU, SEUNG-HA CHOI
  • Patent number: 9059046
    Abstract: A thin film transistor array panel according to an exemplary embodiment of the invention includes: a substrate; a gate line positioned on the substrate and including a gate electrode; a gate insulating layer positioned on the gate line; an oxide semiconductor layer positioned on the substrate; a source electrode and a drain electrode positioned on the oxide semiconductor layer; a first insulating layer positioned on the source electrode and the drain electrode and including a first contact hole; a data line positioned on the first insulating layer and intersecting the gate line; and a pixel electrode over the first insulating layer. The source electrode and the drain electrode each comprise a metal oxide. The data line is electrically connected to the source electrode through the first contact hole.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Shin Il Choi, Seung-Ha Choi, Bong-Kyun Kim, Sang Gab Kim, Sho Yeon Kim, Hyun Kim, Hong Sick Park, Su Bin Bae
  • Patent number: 8994023
    Abstract: A thin film transistor array substrate capable of reducing degradation of a device due to degradation of an oxide semiconductor pattern and a method of fabricating the same are provided. The thin film transistor array substrate may include an insulating substrate on which a gate electrode is formed, a gate insulating film formed on the insulating substrate, an oxide semiconductor pattern disposed on the gate insulating film, an anti-etching pattern formed on the oxide semiconductor pattern, and a source electrode and a drain electrode formed on the anti-etching pattern. The oxide semiconductor pattern may include an edge portion positioned between the source electrode and the drain electrode, and the edge portion may include at least one conductive region and at least one non-conductive region.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-Young Ryu, Woo-Geun Lee, Young-Joo Choi, Kyoung-Jae Chung, Jin-Won Lee, Seung-Ha Choi, Hee-Jun Byeon, Pil-Sang Yun
  • Patent number: 8975145
    Abstract: Embodiments of the present invention relate to a thin film transistor and a manufacturing method of a display panel, and include forming a gate line including a gate electrode on a substrate, forming a gate insulating layer on the gate electrode, forming an intrinsic semiconductor on the gate insulating layer, forming an extrinsic semiconductor on the intrinsic semiconductor, forming a data line including a source electrode and a drain electrode on the extrinsic semiconductor, and plasma-treating a portion of the extrinsic semiconductor between the source electrode and the drain electrode to form a protection member and ohmic contacts on respective sides of the protection member. Accordingly, the process for etching the extrinsic semiconductor and forming an inorganic insulating layer for protecting the intrinsic semiconductor may be omitted such that the manufacturing process of the display panel may be simplified, manufacturing cost may be reduced, and productivity may be improved.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yu-Gwang Jeong, Young-Wook Lee, Sang-Gab Kim, Woo-Geun Lee, Min-Seok Oh, Jang-Soo Kim, Kap-Soo Yoon, Shin-Il Choi, Hong-Kee Chin, Seung-Ha Choi, Seung-Hwan Shim, Sung-Hoon Yang, Ki-Hun Jeong
  • Publication number: 20140349445
    Abstract: Provided are a display substrate, a display device, and a method of manufacturing the display substrate. The display substrate includes: a substrate in which a pixel region is defined; a gate electrode and a gate pad are formed on the substrate; a gate insulating layer formed on the gate electrode and the gate pad; a buffer layer pattern overlaps the gate electrode and is formed on the gate insulating layer; an insulating film pattern formed on the buffer layer pattern; an oxide semiconductor pattern formed on the insulating film pattern; a source electrode formed on the oxide semiconductor pattern; and a drain electrode formed on the oxide semiconductor pattern and is separated from the source electrode.
    Type: Application
    Filed: August 8, 2014
    Publication date: November 27, 2014
    Inventors: Seung-Ha CHOI, Kyoung-Jae CHUNG, Woo-Geun LEE
  • Patent number: 8853699
    Abstract: Disclosed are a thin film transistor and a method of forming the thin film transistor, wherein the thin film transistor includes a gate electrode, an oxide semiconductor pattern, a first gate insulating layer pattern interposed between the gate electrode and the oxide semiconductor pattern, wherein the first gate insulating layer pattern has an island shape or has two portions of different thicknesses from each other, a source electrode and a drain electrode electrically connected to the oxide semiconductor pattern, wherein the source electrode and the drain electrode are separated from each other, and a first insulating layer pattern placed between the source electrode and drain electrode and the oxide semiconductor pattern, wherein the first insulating layer pattern partially contacts the source electrode and drain electrode and the first gate insulating layer pattern, and wherein the first insulating layer is enclosed by an outer portion.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ha Choi, Kyoung-Jae Chung, Young-Wook Lee
  • Patent number: 8836877
    Abstract: Provided are a display substrate, a display device, and a method of manufacturing the display substrate. The display substrate includes: a substrate in which a pixel region is defined; a gate electrode and a gate pad are formed on the substrate; a gate insulating layer formed on the gate electrode and the gate pad; a buffer layer pattern overlaps the gate electrode and is formed on the gate insulating layer; an insulating film pattern formed on the buffer layer pattern; an oxide semiconductor pattern formed on the insulating film pattern; a source electrode formed on the oxide semiconductor pattern; and a drain electrode formed on the oxide semiconductor pattern and is separated from the source electrode.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ha Choi, Kyoung-Jae Chung, Woo-Geun Lee
  • Publication number: 20140209903
    Abstract: A thin film transistor panel includes an insulating substrate, a gate insulating layer disposed on the insulating substrate, an oxide semiconductor layer disposed on the gate insulating layer, an etch stopper disposed on the oxide semiconductor layer, and a source electrode and a drain electrode disposed on the etch stopper.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Pil-Sang YUN, Ki-Won KIM, Hye-Young RYU, Woo-Geun LEE, Seung-Ha CHOI, Jae-Hyoung YOUN, Kyoung-Jae CHUNG, Young-Wook LEE, Je-Hun LEE, Kap-Soo YOON, Do-Hyun KIM, Dong-Ju YANG, Young-Joo CHOI
  • Publication number: 20140147947
    Abstract: Embodiments of the present invention relate to a thin film transistor and a manufacturing method of a display panel, and include forming a gate line including a gate electrode on a substrate, forming a gate insulating layer on the gate electrode, forming an intrinsic semiconductor on the gate insulating layer, forming an extrinsic semiconductor on the intrinsic semiconductor, forming a data line including a source electrode and a drain electrode on the extrinsic semiconductor, and plasma-treating a portion of the extrinsic semiconductor between the source electrode and the drain electrode to form a protection member and ohmic contacts on respective sides of the protection member. Accordingly, the process for etching the extrinsic semiconductor and forming an inorganic insulating layer for protecting the intrinsic semiconductor may be omitted such that the manufacturing process of the display panel may be simplified, manufacturing cost may be reduced, and productivity may be improved.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 29, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yu-Gwang JEONG, Young-Wook LEE, Sang-Gab KIM, Woo-Geun LEE, Min-Seok OH, Jang-Soo KIM, Kap-Soo YOON, Shin-Il CHOI, Hong-Kee CHIN, Seung-Ha CHOI, Seung-Hwan SHIM, Sung-Hoon YANG, Ki-Hun JEONG