Patents by Inventor Dong-pil Park

Dong-pil Park 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: 20220174819
    Abstract: A flexible printed circuit board includes a power wiring layer transmitting power and a signal wiring layer insulated and stacked over or under the power wiring layer.
    Type: Application
    Filed: April 10, 2020
    Publication date: June 2, 2022
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Jongmin KIM, Dong Pil PARK, Yoonho HUH
  • Patent number: 11342686
    Abstract: A film antenna according to an embodiment of the present invention includes a dielectric layer, and a plurality of radiation patterns commonly arranged on an upper surface of the dielectric layer and forming a phased array. Directivity and gain property of a signal may be improved. The film antenna may be applied to a display device including a mobile communication device capable of transmitting and receiving in 3G or higher, for example, 5G of high-frequency band, to improve radiation properties and optical properties such as transmittance.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: May 24, 2022
    Assignees: DONGWOO FINE-CHEM CO., LTD., KREEMO INC.
    Inventors: Jong Min Kim, Dong Pil Park, Yoon Ho Huh, Won Bin Hong
  • Publication number: 20220158350
    Abstract: An antenna element according to an embodiment of the present invention includes a radiation body including a contact part which is concave toward the transmission line, a transmission line disposed on a different layer from the radiation body and connected to the radiation body through the contact part, and a signal pad connected to an end of the transmission line.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 19, 2022
    Inventors: Byung Jin CHOI, Young Ju KIM, Dong Pil PARK
  • Patent number: 11329369
    Abstract: A film antenna according to an embodiment of the present invention includes a plurality of radiation patterns corresponding to different frequency bands, transmission lines extending from each of the radiation patterns, and a driving circuit unit commonly connected to the transmission lines. Signaling transmission/reception efficiency and reliability may be improved by integrating the radiation patterns of different frequency bands.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 10, 2022
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Han Sub Ryu, Jong Min Kim, Dong Pil Park
  • Publication number: 20220137741
    Abstract: An electrode structure combined with an antenna according to an embodiment of the present disclosure includes a substrate layer, sensing electrodes, a bridge electrode and an antenna unit. The sensing electrodes are arranged on the substrate layer, and include first sensing electrodes arranged along a first direction parallel to a top surface of the substrate layer, and second sensing electrodes arranged along a second direction parallel to the top surface of the substrate layer and intersecting the first direction. The bridge electrode connects the first sensing electrodes neighboring in the first direction. The antenna unit is disposed at the same layer as that of the bridge electrode, and includes a radiator overlapping the sensing electrodes in a planar view.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 5, 2022
    Inventors: Byung Jin CHOI, Dong Pil PARK, Won Hee LEE
  • Publication number: 20220131279
    Abstract: An antenna package according to an exemplary embodiment of the present invention includes a first antenna device which includes a first antenna unit including a first radiator, a second antenna device which includes a second antenna unit including a second radiator whose polarization direction is perpendicular to the first radiator, a first circuit board electrically connected with the first antenna unit, a second circuit board electrically connected with the second antenna unit, and a third circuit board on which at least one antenna driving integrated circuit (IC) chip electrically and independently connected to the first circuit board and the second circuit board is mounted. By supplying power to two antenna devices having different polarization directions, respectively, signal interference and signal loss may be prevented, and dual polarization may be implemented.
    Type: Application
    Filed: October 22, 2021
    Publication date: April 28, 2022
    Inventors: Young Ju KIM, Dong Pil PARK, Byung Jin CHOI, Han Sub RYU, Ho Dong YOON
  • Publication number: 20220091688
    Abstract: A touch sensor includes a sensing cell part having a plurality of sensing cells, a wiring part having a plurality of wires for transmitting a sensing signal of the sensing cell part, and a pad electrode part having a plurality of pad electrodes for transmitting the sensing signal received from the wiring part to an flexible printed circuits board (FPCB), and is coupled to a rear glass of a portable terminal.
    Type: Application
    Filed: December 26, 2019
    Publication date: March 24, 2022
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Jongmin KIM, Dong Pil PARK, Jaehyun LEE
  • Publication number: 20220083172
    Abstract: A multi-sensor structure according to an embodiment of the present disclosure includes a base layer, a first touch-fingerprint sensor electrode layer disposed on a top surface of the base layer, a second touch-fingerprint sensor electrode layer disposed at an upper level of the first touch-fingerprint sensor electrode layer, and an antenna electrode layer spaced apart from the first touch-fingerprint sensor electrode layer and the second touch-fingerprint sensor electrode layer in a planar direction. The antenna electrode layer is disposed at the same level as that of the first touch-fingerprint sensor electrode layer or the second touch-fingerprint sensor electrode layer. A sensor in which a touch-fingerprint sensing and an antenna signal sensing are integrated is provided.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 17, 2022
    Inventors: Jong Min KIM, Dong Pil PARK, Jae Hyun LEE
  • Publication number: 20220037789
    Abstract: An antenna package according to an embodiment of the present invention includes a printed circuit board, a rear antenna unit disposed at an upper portion of the printed circuit board. The rear antenna unit may be directly mounted on the printed circuit board or integrated with the printed circuit board, and a front antenna unit disposed at a bottom side of the printed circuit board and electrically connected to the printed circuit board. The rear antenna unit and the front antenna unit are packaged using the printed circuit board to improve a radiation coverage and reliability.
    Type: Application
    Filed: October 13, 2021
    Publication date: February 3, 2022
    Inventors: Jong Min KIM, Dong Pil PARK, Young Jun LEE
  • Publication number: 20220029278
    Abstract: An antenna device according to an embodiment of the present disclosure includes a dielectric layer, a first electrode layer disposed on an upper surface of the dielectric layer, the first electrode layer including a radiator and having a first mesh structure, and a second electrode layer disposed on a lower surface of the dielectric layer, the second electrode layer having a second mesh structure. The first mesh structure and the second mesh structure are aligned to be offset or staggered from each other with respect to the dielectric layer in a planar view.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Han Sub RYU, Dong Pil PARK, Yun Seok OH
  • Patent number: 11233321
    Abstract: In an antenna structure according to exemplary embodiments of the present invention, a metal layer provided as a rear metal case of the display panel, a protecting layer and an antenna electrode layer are laminated in this order. The rear metal case may be used as a ground layer so that an additional space for the antenna is secured, and signal efficiency and reliability may be improved.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: January 25, 2022
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Dong Pil Park, Yun Seok Oh, Yoon Ho Huh
  • Publication number: 20210382573
    Abstract: An image display device according to an embodiment of the present disclosure includes a display panel, a touch sensor structure and an antenna electrode layer. The display panel includes a panel substrate, and an electrode structure and an insulation structure stacked on the panel substrate. The touch sensor structure is disposed on the display panel. The antenna electrode layer is disposed on the display panel at the same level as that of the touch sensor structure and at least partially overlaps the electrode structure of the display panel in a thickness direction. The antennal electrode layer is disposed in consideration of an electrode construction of the display panel and the touch sensor structure to provide a thin-layered image display device with high reliability.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Inventors: Yoon Ho HUH, Dong Pil PARK, Young Jun LEE, Won Bin HONG
  • Patent number: 11175786
    Abstract: A touch sensor according to an embodiment of the present invention includes a base layer including a first region and a second region, a touch sensing electrode layer disposed on the first region of the base layer, the touch sensing electrode layer including a plurality of touch sensing unit electrodes having openings formed therein, and a fingerprint sensing electrode layer including a plurality of fingerprint sensing unit electrodes disposed on the second region of the base layer. A space having the same shape as that of the openings is formed between neighboring fingerprint sensing unit electrodes of the plurality of fingerprint sensing unit electrodes.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: November 16, 2021
    Assignee: DONGWOOD FINE-CHEM CO., LTD
    Inventors: Byung Jin Choi, Dong Pil Park, Ju In Yoon, Jae Hyun Lee
  • Patent number: 11165169
    Abstract: An antenna structure includes an antenna device including a dielectric layer and a plurality of radiation patterns on an upper surface of the dielectric layer, and a flexible circuit board including a feeding wiring electrically connected to the radiation patterns. The feeding wiring includes a plurality of individual wirings, each of which electrically connected to each of the radiation patterns, and lengths of neighboring individual wirings included in at least one pair from the plurality of individual wirings are different from each other.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: November 2, 2021
    Assignees: DONGWOO FINE-CHEM CO., LTD., POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Jong Min Kim, Dong Pil Park, Yun Seok Oh, Won Bin Hong
  • Patent number: 11088443
    Abstract: An antenna device includes a dielectric layer and a radiation electrode on an upper surface of the dielectric layer. The radiation electrode includes a plurality of electrode lines therein. The radiation electrode has a visibility index in a range from ?1.4 to 1.9. An electrode visibility is suppressed and a signaling sensitivity is enhanced from the radiation electrode. A display device including the antenna device is also provided.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: August 10, 2021
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Han Sub Ryu, Gi Hwan Ahn, Dong Pil Park, Sung Ho Baek
  • Patent number: 11069964
    Abstract: The present invention relates to a transparent film antenna. The present invention comprises: an insulator film; and a metal electrode for an antenna, which is formed on the insulator film, wherein the transmittance of the metal electrode for an antenna is 80% to 95% inclusive. The present invention employs a metal electrode having a high transmittance and a low resistance, so as to provide a transparent film antenna which can be implemented in the screen display area of a display device, can be applied to a high frequency band for 3G to 5G mobile communication, can be implemented as a transparent film antenna satisfying a high transmittance, and can prevent moiré effects due to components of an antenna and thus improve the optical characteristics of a display device to which the antenna is coupled.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: July 20, 2021
    Assignee: Dongwoo Fine-Chem Co., Ltd.
    Inventors: Yoon Ho Huh, Dong Pil Park, Yun Seok Oh
  • Publication number: 20210203056
    Abstract: A film transmission line according to an embodiment of the present invention includes a dielectric layer, and an electrode line disposed on the dielectric layer. The electrode line has an effective efficiency of 200%/?m or more at a frequency of 5 GHz or more. The film transmission line may be applied to a high frequency thinned antenna and an image display device.
    Type: Application
    Filed: February 8, 2021
    Publication date: July 1, 2021
    Inventors: Yoon Ho HUH, Jong Min KIM, Dong Pil PARK
  • Publication number: 20210173528
    Abstract: A touch sensor according to an embodiment of the present invention includes a base layer including a first region and a second region, a touch sensing electrode layer disposed on the first region of the base layer, the touch sensing electrode layer including a plurality of touch sensing unit electrodes having openings formed therein, and a fingerprint sensing electrode layer including a plurality of fingerprint sensing unit electrodes disposed on the second region of the base layer. A space having the same shape as that of the openings is formed between neighboring fingerprint sensing unit electrodes of the plurality of fingerprint sensing unit electrodes.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 10, 2021
    Inventors: Byung Jin CHOI, Dong Pil PARK, Ju In YOON, Jae Hyun LEE
  • Publication number: 20210141426
    Abstract: An antenna structure of an embodiment of the present invention includes a film antenna including a dielectric layer and an antenna electrode layer formed on an upper surface of the dielectric layer, and a flexible circuit board including a power supply wiring electrically connected to the antenna electrode layer. A bonding region is defined by a region in which the antenna electrode layer and the power supply wiring are overlapped with each other in a planar direction, and the bonding region has a length of 1.5 mm or less. Signal efficiency and radiation reliability may be improved by adjusting a length of the bonding region.
    Type: Application
    Filed: January 21, 2021
    Publication date: May 13, 2021
    Inventors: Jong Min KIM, Han Sub RYU, Dong Pil PARK
  • Publication number: 20210126348
    Abstract: An antenna structure according to an embodiment of the present invention includes a film antenna including a dielectric layer, an upper electrode layer disposed on an upper surface of the dielectric layer and including a radiation pattern, a transmission line, and a ground pad, and a lower ground layer disposed on a lower surface of the dielectric layer, and a flexible circuit board including a core layer, a power supply wiring layer disposed on a lower surface of the core layer and electrically connected to the transmission line, and a ground plate disposed on an upper surface of the core layer and disposed in overlapping with the power supply wiring layer in a planar direction. Thereby, it is possible to reduce a radiation signal generated from the power supply wiring through the ground plate, suppress a noise of the antenna and increase radiation efficiency.
    Type: Application
    Filed: January 4, 2021
    Publication date: April 29, 2021
    Inventors: Jong Min KIM, Han Sub RYU, Dong Pil PARK, Won Bin HONG