Patents by Inventor Chang Hyun SONG

Chang Hyun SONG 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: 10884535
    Abstract: Disclosed is a display device capable of reducing the thickness and the weigh thereof. A display device having a touch sensor realizes electrical connection of a routing line and a touch pad via an auxiliary conductive layer, which is connected to the routing line under an encapsulation unit, even if a disconnection fault occurs in the routing line, thereby achieving increased yield and reliability. In addition, through the provision of a touch sensor disposed above the encapsulation unit, a separate attachment process is unnecessary, which results in a simplified manufacturing process and reduced costs.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: January 5, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Hyun Song, Jeong-Oh Kim
  • Publication number: 20200373362
    Abstract: A thin and lightweight display device is disclosed. An organic light-emitting display device having a touch sensor is configured such that an outer planarization layer fills a space between a plurality of dams, thereby preventing a short circuit between routing lines in the space between the dams, and such that touch electrodes are disposed on an encapsulation structure for encapsulating a light-emitting element, with the result that an additional bonding process is not required, whereby the process is simplified and cost is reduced.
    Type: Application
    Filed: August 11, 2020
    Publication date: November 26, 2020
    Inventors: Sang-Hyuk WON, Min-Joo KIM, Chang-Hyun SONG, Yong-Il KIM, Jong-Won LEE
  • Patent number: 10777620
    Abstract: A thin and lightweight display device is disclosed. An organic light-emitting display device having a touch sensor is configured such that an outer planarization layer fills a space between a plurality of dams, thereby preventing a short circuit between routing lines in the space between the dams, and such that touch electrodes are disposed on an encapsulation structure for encapsulating a light-emitting element, with the result that an additional bonding process is not required, whereby the process is simplified and cost is reduced.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: September 15, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Hyuk Won, Min-Joo Kim, Chang-Hyun Song, Yong-Il Kim, Jong-Won Lee
  • Publication number: 20200225795
    Abstract: Disclosed is a display device capable of reducing the thickness and the weigh thereof. A display device having a touch sensor realizes electrical connection of a routing line and a touch pad via an auxiliary conductive layer, which is connected to the routing line under an encapsulation unit, even if a disconnection fault occurs in the routing line, thereby achieving increased yield and reliability. In addition, through the provision of a touch sensor disposed above the encapsulation unit, a separate attachment process is unnecessary, which results in a simplified manufacturing process and reduced costs.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Chang-Hyun SONG, Jeong-Oh KIM
  • Patent number: 10642394
    Abstract: Disclosed is a display device capable of reducing the thickness and the weigh thereof. A display device having a touch sensor realizes electrical connection of a routing line and a touch pad via an auxiliary conductive layer, which is connected to the routing line under an encapsulation unit, even if a disconnection fault occurs in the routing line, thereby achieving increased yield and reliability. In addition, through the provision of a touch sensor disposed above the encapsulation unit, a separate attachment process is unnecessary, which results in a simplified manufacturing process and reduced costs.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: May 5, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Hyun Song, Jeong-Oh Kim
  • Publication number: 20190129539
    Abstract: Disclosed is a display device having touch sensors which may improve visibility. In the display device, the touch sensors having a multilayer structure including a blackened layer are arranged on an encapsulation assembly arranged to cover light emitting elements, and touch pads having a multilayer structure including a partially transparent conductive layer are arranged on a region of a substrate exposed by the encapsulation assembly. Therefore, the blackened layer may prevent reflection of external light and thus visibility may be improved, and the partially transparent conductive layer may lower sheet resistance of the touch pads and thus contact resistance between the touch pads and a driver integrated circuit may be reduced.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Inventors: Yong-Il KIM, Chang-Hyun SONG
  • Publication number: 20180350884
    Abstract: A thin and lightweight display device is disclosed. An organic light-emitting display device having a touch sensor is configured such that an outer planarization layer fills a space between a plurality of dams, thereby preventing a short circuit between routing lines in the space between the dams, and such that touch electrodes are disposed on an encapsulation structure for encapsulating a light-emitting element, with the result that an additional bonding process is not required, whereby the process is simplified and cost is reduced.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 6, 2018
    Inventors: Sang-Hyuk WON, Min-Joo KIM, Chang-Hyun SONG, Yong-Il KIM, Jong-Won LEE
  • Publication number: 20180329552
    Abstract: Disclosed is a display device capable of reducing the thickness and the weigh thereof. A display device having a touch sensor realizes electrical connection of a routing line and a touch pad via an auxiliary conductive layer, which is connected to the routing line under an encapsulation unit, even if a disconnection fault occurs in the routing line, thereby achieving increased yield and reliability. In addition, through the provision of a touch sensor disposed above the encapsulation unit, a separate attachment process is unnecessary, which results in a simplified manufacturing process and reduced costs.
    Type: Application
    Filed: May 10, 2018
    Publication date: November 15, 2018
    Inventors: Chang-Hyun SONG, Jeong-Oh KIM
  • Publication number: 20070049189
    Abstract: A ventilator is provided. The ventilator includes blowers 60 and 70; ducts 62 and 72 that are connected to the blowers 60 and 70 to form a blow path having at least one bent part; and a sound-absorbing material 90 that is provided in the bent part of the blow path of the ducts 62 and 72 to absorb noise within the blow path thereof. Therefore, it is possible to remarkably reduce or prevent flow noise that is propagated to the inside of a room as noise of a flow passing through the ducts 62 and 72 is absorbed by the sound-absorbing material 90.
    Type: Application
    Filed: August 9, 2006
    Publication date: March 1, 2007
    Applicant: LG ELECTRONICS INC.
    Inventors: Ho Beom LEE, Kyung Hwan KIM, Keun Hyoung CHOI, Dong Whan CHOI, Ho Seon CHOI, Jong Hoon PARK, Chang Hyun SONG