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: 11982462
    Abstract: An air conditioner includes a cabinet including an inlet port and a frame including an outlet port and coupled to the cabinet. A heat exchanger is disposed between the cabinet and the frame to exchange heat with air introduced into the inlet port and discharged to the outlet port. A blocking member is configured to connect the frame and the heat exchanger to prevent air heat-exchanged with the heat exchanger from leaking into the cabinet. This structure inhibits dew from being generated on the cabinet.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: May 14, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Woo Jung, Sung Jae Kim, Jin-Gyun Kim, Young Tae Song, Hae Gyun Shin, Chang Sik Lee, Seo Young Cho, Sung Hyun Chun
  • Publication number: 20240109397
    Abstract: A method for controlling an electric heater of a vehicular heating, ventilation, and air conditioning (HVAC) system includes turning on the electric heater; determining whether an ambient air temperature of a vehicle is higher than or equal to a threshold ambient air temperature, and a battery temperature is lower than or equal to a threshold battery temperature; determining whether battery efficiency is lower than or equal to threshold efficiency when the ambient air temperature of the vehicle is higher than or equal to the threshold ambient air temperature, and the battery temperature is lower than or equal to the threshold battery temperature; and turning off the electric heater when the battery efficiency is lower than or equal to the threshold efficiency, wherein the electric heater is configured to receive electric energy from the battery.
    Type: Application
    Filed: March 30, 2023
    Publication date: April 4, 2024
    Inventors: Dae Hyun Song, Chang Gi Ryu, Woo Jin Lee, Dong Ju Ko, Hyun Hun Choi, Chun Kyu Kwon, In Uk Ko
  • Patent number: 11892472
    Abstract: Disclosed is a test device for testing an electric characteristic of an object to be tested. The test device includes a block comprising a probe hole, a probe supported in the probe hole and retractably configured to connect a first contact point and a second contact point, and a coaxial cable comprising an insulated sheath, a main core surrounded with the insulated sheath, and a probe contact portion exposed from the insulated sheath and extended from the main core so as to be in contact with the probe. An axis of the probe is spaced apart from an axis of the coaxial cable, and the probe contact portion is extended from the main core toward the axis of the probe.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: February 6, 2024
    Assignee: LEENO INDUSTRIAL INC.
    Inventors: Chang-hyun Song, Jae-hwan Jeong
  • Patent number: 11782565
    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: Grant
    Filed: March 16, 2022
    Date of Patent: October 10, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Il Kim, Chang-Hyun Song
  • Publication number: 20230209969
    Abstract: Discussed is a display device including a substrate including a first region and a second region surrounding the first region, a plurality of first subpixels on the first region of the substrate, and a plurality of second subpixels on the second region of the substrate. The first region includes a transmission portion adjacent to the plurality of first subpixels. Each of the first and second subpixels includes a first electrode, a first common layer, an organic emission layer, a second common layer, and a second electrode stacked in order. The first and second common layers are located in succession in the first and second subpixels.
    Type: Application
    Filed: March 3, 2023
    Publication date: June 29, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Jae-Young OH, Sung-Ki KIM, Bok-Young LEE, Young-Wook LEE, Chang-Hyun SONG
  • Patent number: 11659761
    Abstract: A display panel comprises a substrate including a plurality of polymer layers, an inorganic interlayer insulating film, and a semiconductor layer between the plurality of polymer layers and a panel array over the substrate. The semiconductor layer within a substrate may ground electric charges entered from the outside through the semiconductor layer. Thus, the display panel protects an array provided on the substrate and improves the reliability of the display device.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: May 23, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Young Oh, Sung-Ki Kim, Chang-Hyun Song, Hyo-Jae Lee
  • Patent number: 11626456
    Abstract: A display device is discussed, which has improved transmittance and relieves a visual difference in a camera region, even though a camera is provided in an active region, by changing the configuration of a substrate in a region corresponding to the camera.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: April 11, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae-Young Oh, Sung-Ki Kim, Bok-Young Lee, Young-Wook Lee, Chang-Hyun Song
  • Patent number: 11620012
    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: November 24, 2021
    Date of Patent: April 4, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Hyun Song, Jeong-Oh Kim
  • Publication number: 20220206641
    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: March 16, 2022
    Publication date: June 30, 2022
    Inventors: Yong-Il KIM, Chang-Hyun SONG
  • Publication number: 20220155341
    Abstract: Disclosed is a test device for testing an electric characteristic of an object to be tested. The test device includes a block comprising a probe hole, a probe supported in the probe hole and retractably configured to connect a first contact point and a second contact point, and a coaxial cable comprising an insulated sheath, a main core surrounded with the insulated sheath, and a probe contact portion exposed from the insulated sheath and extended from the main core so as to be in contact with the probe. An axis of the probe is spaced apart from an axis of the coaxial cable, and the probe contact portion is extended from the main core toward the axis of the probe.
    Type: Application
    Filed: April 17, 2020
    Publication date: May 19, 2022
    Applicant: LEENO INDUSTRIAL INC.
    Inventors: Chang-hyun SONG, Jae-hwan JEONG
  • Patent number: 11301100
    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: August 11, 2020
    Date of Patent: April 12, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Hyuk Won, Min-Joo Kim, Chang-Hyun Song, Yong-Il Kim, Jong-Won Lee
  • Patent number: 11301102
    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: Grant
    Filed: January 22, 2021
    Date of Patent: April 12, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Yong-Il Kim, Chang-Hyun Song
  • Publication number: 20220083164
    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: November 24, 2021
    Publication date: March 17, 2022
    Inventors: Chang-Hyun SONG, Jeong-Oh KIM
  • Patent number: 11209925
    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: December 7, 2020
    Date of Patent: December 28, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Hyun Song, Jeong-Oh Kim
  • Publication number: 20210398933
    Abstract: An electronic device which connects a circuit film to a display panel by applying a conductive material to the insides of holes formed in the circuit film, so as to improve reliability of bonding, and a display device using the same, are discussed.
    Type: Application
    Filed: May 28, 2021
    Publication date: December 23, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Chang Hyun SONG, Jae Young OH
  • Publication number: 20210202878
    Abstract: Disclosed are a display panel and a display device using the same. The display panel includes a semiconductor layer within a substrate and grounds electric charges entered from the outside through the semiconductor layer, thus protecting an array provided on the substrate and improving the reliability of the display device.
    Type: Application
    Filed: December 10, 2020
    Publication date: July 1, 2021
    Inventors: Jae-Young OH, Sung-Ki KIM, Chang-Hyun SONG, Hyo-Jae LEE
  • Publication number: 20210193756
    Abstract: A display device is discussed, which has improved transmittance and relieves a visual difference in a camera region, even though a camera is provided in an active region, by changing the configuration of a substrate in a region corresponding to the camera.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 24, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Jae-Young OH, Sung-Ki KIM, Bok-Young LEE, Young-Wook LEE, Chang-Hyun SONG
  • Publication number: 20210141493
    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: January 22, 2021
    Publication date: May 13, 2021
    Inventors: Yong-Il KIM, Chang-Hyun SONG
  • Publication number: 20210089157
    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: December 7, 2020
    Publication date: March 25, 2021
    Inventors: Chang-Hyun SONG, Jeong-Oh KIM
  • Patent number: 10928964
    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: Grant
    Filed: October 30, 2018
    Date of Patent: February 23, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Yong-Il Kim, Chang-Hyun Song