Patents by Inventor Sung-Hoon Yang

Sung-Hoon Yang 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: 20140061681
    Abstract: In a display substrate, a method for manufacturing the display substrate and an electro-wetting display apparatus including the display substrate, the display substrate includes a base substrate, a sidewall defining a unit pixel area, a pixel electrode, a hydrophobic insulating layer and a light blocking layer. The sidewall is on the base substrate and defines the unit pixel area. The pixel electrode is in the unit pixel area. The hydrophobic insulating layer is on the sidewall and the pixel electrode. The light blocking layer is on the hydrophobic insulating layer and overlaps the sidewall.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 6, 2014
    Applicant: Liquavista B.V
    Inventors: Suk-Won JUNG, Seung-Mi SEO, Sung-Hoon YANG
  • Patent number: 8647928
    Abstract: A thin film transistor substrate includes a base substrate, a gate electrode, a gate insulating layer, a surface treating layer, an active layer, a source electrode and a drain electrode. The gate electrode is formed on the base substrate. The gate insulating layer is formed on the base substrate to cover the gate electrode. The surface treating layer is formed on the gate insulating layer by treating the gate insulating layer with a nitrogen-containing gas to prevent leakage current. The active layer is formed on the surface treating layer to cover the gate electrode. The source electrode and the gate electrode that are spaced apart from each other by a predetermined distance are formed on the active layer.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: February 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Woo Whangbo, Shi-Yul Kim, Sung-Hoon Yang, Woo-Geun Lee
  • Patent number: 8642367
    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: March 7, 2011
    Date of Patent: February 4, 2014
    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: 20140021518
    Abstract: A display device includes: a first substrate; a photo transistor on the first substrate; and a switching transistor connected to the photo transistor. The photo transistor includes a light blocking film on the first substrate, a first gate electrode on the light blocking film and in contact with the light blocking film, a first semiconductor layer on the first gate electrode and overlapping the light blocking film, and a first source electrode and a first drain electrode on the first semiconductor layer. The switching transistor includes a second gate electrode on the first substrate, a second semiconductor layer on the second gate electrode and overlapping the second gate electrode, and a second source electrode and a second drain electrode on the second semiconductor layer. The first semiconductor layer and the second semiconductor layer are at a same layer of the display device, and each includes crystalline silicon germanium.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 23, 2014
    Applicants: SAMSUNG DISPLAY CO., LTD., ULSAN COLLEGE INDUSTRY COOPERATION, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Sang Youn HAN, Cheol Kyu KIM, Jun Ho SONG, Sung Hoon YANG, Kyung Tea PARK, Seung Mi SEO, Suk Won JUNG, Do Young KIM, Sun Jo KIM, Hyung Jun KIM
  • Patent number: 8619230
    Abstract: An approach is provided for manufacturing a LCD apparatus. A first substrate is formed by forming a transparent conductive layer on a first transparent insulating substrate and forming a transparent conductive electrode on the transparent conductive layer. A second substrate is formed by forming a thin-film transistor (TFT) on a second transparent insulating substrate and forming a pixel electrode. The first substrate is coupled to the second substrate using a sealing member.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: December 31, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Hwan Shim, Gug-Rae Jo, Sung-Hoon Yang, Kap-Soo Yoon, Ki-Hun Jeong, Jae-Ho Choi
  • Patent number: 8610655
    Abstract: A method for removing noise of a gate signal that is outputted from a gate driving circuit including a plurality of stages, the method includes electrically connecting two terminals of two adjacent stages that have noise components opposite in phase to each other during a first period, and electrically disconnecting the two terminals of the two adjacent stages that have the noise components opposite in phase to each other during a second period.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo-Wan Yoon, Sung-Hoon Yang, Chong-Chul Chai, So-Woon Kim, Chang-Hyeon Shin
  • Patent number: 8581253
    Abstract: A display substrate includes a first light blocking pattern formed on a base substrate, a first switching element, a second light blocking pattern formed on the base substrate, and a first sensing element. The first light blocking pattern is configured to block visible light and transmit infrared light. The first switching element includes a first semiconductor pattern, a first source electrode, a first drain electrode, and a first gate electrode. The second light blocking pattern is configured to block the visible light and transmit the infrared light. The first sensing element is configured to detect the infrared light, and includes a second semiconductor pattern, a second source electrode, a second drain electrode, and a second gate electrode.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: November 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Suk Bang, Byeong-Hoon Cho, Sung-Hoon Yang, Suk-Won Jung, Ki-Hun Jeong
  • Publication number: 20130295731
    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: July 12, 2013
    Publication date: November 7, 2013
    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: 20130249817
    Abstract: A photosensor includes a sensing switching element, a sensing element, and a reset switching element. The sensing switching element includes an output terminal connected to a sensing signal line, a control terminal connected to a first gate line, and an input terminal connected to the first node. The sensing element includes an output terminal connected to a first node, a control terminal connected a second gate line disposed next to the first gate line, and an input terminal connected to a source voltage line transmitting a source voltage. The sensing element senses light. The reset switching element includes an output terminal connected to the first node, a control terminal connected to the second gate line, and an input terminal connected to a driving voltage line transmitting a driving voltage.
    Type: Application
    Filed: July 3, 2012
    Publication date: September 26, 2013
    Inventors: Suk Won JUNG, Seung Mi SEO, Sung Hoon YANG
  • Publication number: 20130234124
    Abstract: Provided are a thin-film transistor (TFT) substrate, a method of manufacturing the same, and a display device including the same. The TFT substrate includes a gate electrode formed on a substrate, a gate insulating layer formed on the gate electrode, an oxide semiconductor pattern formed on the gate insulating layer, a source electrode formed on the oxide semiconductor pattern, a drain electrode formed on the oxide semiconductor pattern to face the source electrode, and a pixel electrode formed on the gate insulating layer.
    Type: Application
    Filed: April 26, 2013
    Publication date: September 12, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: KAP-SOO YOON, Woo-Geun Lee, Bong-Kyun Kim, Sung-Hoon Yang, Ki-Won Kim, Hyun-Jung Lee
  • Patent number: 8519317
    Abstract: A photosensor includes a substrate, a gate line, and a data line disposed on the substrate. A thin film transistor is connected to the gate line and the data line. A first photo-sensing member is disposed on the substrate, and a first electrode is connected to the thin film transistor and the first photo-sensing member. A second photo-sensing member is disposed on the first photo-sensing member, and a second electrode is connected to the first electrode and the second photo-sensing member.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Youn Han, Sung-Hoon Yang, Suk-Won Jung, Kyung-Sook Jeon, Seung Mi Seo, Mi-Seon Seo
  • Publication number: 20130208261
    Abstract: Provided are a photo sensor, a display device including the same, and a driving method thereof The photo sensor includes: an amplifying element including an input terminal coupled to a scan line for receiving a scan signal, an output terminal configured to output a sensing signal, and a control terminal connected to a first node; a sensing capacitor connected with the first node; a photosensitive sensing element including a control terminal connected with a terminal of a first control signal, an output terminal connected with the first node, and an input terminal; and a reset element connected with the output terminal of the amplifying element and resetting the output terminal of the amplifying element to second voltage according to a reset control signal.
    Type: Application
    Filed: June 21, 2012
    Publication date: August 15, 2013
    Applicants: HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION, SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Youn HAN, Byung Seong BAE, Jun Ho SONG, Sung Hoon YANG, Ho Sik JEON
  • Patent number: 8486775
    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: February 3, 2011
    Date of Patent: July 16, 2013
    Assignee: Samsung Display 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: 20130168683
    Abstract: A thin film transistor is provided. A thin film transistor according to an exemplary embodiment of the present invention includes: a substrate; a gate electrode disposed on the substrate; a gate insulating layer disposed on the gate electrode; a semiconductor layer disposed on the gate insulating layer; and a source electrode and a drain electrode disposed on a portion of the semiconductor layer, wherein the semiconductor layer includes an ohmic contact layer, a channel layer, and a buffer layer, the buffer layer disposed between the channel layer and the ohmic contact layer, and the source electrode and the drain electrode contact a surface of the ohmic contact layer.
    Type: Application
    Filed: May 24, 2012
    Publication date: July 4, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mi-Seon SEO, Cheol Kyu KIM, Sung Hoon YANG, Hee Young LEE, Sang Hyun JEON
  • Patent number: 8445909
    Abstract: Provided are a sensor array substrate and a method of fabricating the same. The sensor array substrate includes: a substrate in which a switching element region and a sensor region that senses light are defined; a first semiconductor layer which is formed in the sensor region; a first gate electrode which is formed on the first semiconductor layer and overlaps the first semiconductor layer; a second gate electrode which is formed in the switching element region; a second semiconductor layer which is formed on the second gate electrode and overlaps the second gate electrode; and a light-blocking pattern which is formed on the second semiconductor layer and overlaps the second semiconductor layer, wherein the first semiconductor layer and the second semiconductor layer are disposed on different layers, and the second gate electrode and the light-blocking pattern are electrically connected to each other.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: May 21, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Sook Jeon, Jun-Ho Song, Sang-Youn Han, Sung-Hoon Yang, Dae-Cheol Kim, Ki-Hun Jeong, Mi-Seon Seo
  • Patent number: 8445301
    Abstract: Provided are a thin-film transistor (TFT) substrate, a method of manufacturing the same, and a display device including the same. The TFT substrate includes a gate electrode formed on a substrate, a gate insulating layer formed on the gate electrode, an oxide semiconductor pattern formed on the gate insulating layer, a source electrode formed on the oxide semiconductor pattern, a drain electrode formed on the oxide semiconductor pattern to face the source electrode, and a pixel electrode formed on the gate insulating layer.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: May 21, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kap-Soo Yoon, Woo-Geun Lee, Bong-Kyun Kim, Sung-Hoon Yang, Ki-Won Kim, Hyun-Jung Lee
  • Publication number: 20130088667
    Abstract: A manufacturing method of a liquid crystal display includes: forming an etch target layer including a conductive material on a first substrate; forming a first mask layer on the etch target layer; forming a block copolymer coating layer including a plurality of polymers on the first mask layer; processing the block copolymer coating layer to form a block copolymer pattern layer including first and second polymer blocks; removing one of the first or second polymer blocks to form a second mask pattern layer; etching the first mask layer by using the second mask pattern layer as an etching mask to form a first mask pattern layer; and etching the etch target layer by using the first mask pattern layer as an etching mask to form a first electrode. The first electrode includes a plurality of the first minute patterns extending in a predetermined direction and having a polarization function.
    Type: Application
    Filed: March 2, 2012
    Publication date: April 11, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyang-Shik KONG, Sung Hoon YANG, Se Hwan YU, Yong Hwan SHIN, Su Mi LEE, Shin Il CHOI
  • Patent number: 8409916
    Abstract: A thin film transistor substrate includes an insulating plate; a gate electrode disposed on the insulating plate; a semiconductor layer comprising a metal oxide, wherein the metal oxide has oxygen defects of less than or equal to 3%, and wherein the metal oxide comprises about 0.01 mole/cm3 to about 0.3 mole/cm3 of a 3d transition metal; a gate insulating layer disposed between the gate electrode and the semiconductor layer; and a source electrode and a drain electrode disposed on the semiconductor layer. Also described is a display substrate. The metal oxide has oxygen defects of less than or equal to 3%, and is doped with about 0.01 mole/cm3 to about 0.3 mole/cm3 of 3d transition metal. The metal oxide comprises indium oxide or titanium oxide. The 3d transition metal includes at least one 3d transition metal selected from the group consisting of chromium, cobalt, nickel, iron, manganese, and mixtures thereof.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: April 2, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kap-Soo Yoon, Sung-Hoon Yang, Byoung-June Kim, Czang-Ho Lee, Sung-Ryul Kim, Hwa-Yeul Oh, Jae-Ho Choi, Yong-Mo Choi
  • Publication number: 20130056732
    Abstract: A display device includes: a substrate; an infrared sensing transistor on the substrate; a readout transistor connected to the infrared sensing transistor; a power source line; and a light blocking member on the infrared sensing transistor, where the infrared sensing transistor includes a light blocking film on the substrate, a first gate electrode contacting and overlapping the light blocking film and connected to a power source line, a first semiconductor layer on the first gate electrode overlapping the light blocking film, and first source and drain electrodes on the first semiconductor layer, where the readout transistor includes a second gate electrode on the substrate, a second semiconductor layer on the second gate electrode and overlapping the second gate electrode, and second source and drain electrodes the second semiconductor layer, and where the power source line and the first gate electrode are at a same layer.
    Type: Application
    Filed: February 6, 2012
    Publication date: March 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Suk Won JUNG, Sung Hoon YANG, Sang-Youn HAN, Seung Mi SEO, Mi-Seon SEO
  • Publication number: 20130048989
    Abstract: A touch substrate includes a base substrate, a sensing element and a switching element. The sensing element is disposed over the base substrate, senses infrared light, and includes a sensing semiconductor pattern. The switching element is electrically connected to the sensing element, includes a material substantially the same as a material of the sensing semiconductor pattern, and includes a switching semiconductor pattern having a thickness different from a thickness of the sensing semiconductor pattern.
    Type: Application
    Filed: March 9, 2012
    Publication date: February 28, 2013
    Inventors: Sang-Youn HAN, Mi-Seon SEO, Sung-Hoon YANG