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).

  • 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
  • Patent number: 10990234
    Abstract: The present invention relates to a touch sensor having an antenna. The touch sensor comprises: a touch sensor part including a sensing electrode part; and an antenna part formed on the touch sensor part. The antenna part is formed in a state of being insulated from the sensing electrode part on the sensing electrode part composing the touch sensor part. According to the present invention, even when mounting the antenna on a display region in which a touch sensor is installed, noise due to interference between a touch sensor signal and an antenna transmission/reception signal can be minimized.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: April 27, 2021
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Jong Min Kim, Dong Pil Park, Byung Jin Choi
  • Patent number: 10944161
    Abstract: The present invention relates to a film-type microstrip patch antenna. The present invention comprises: a base film; a microstrip transmission line part formed on one surface of the base film; a radiation patch part formed on the one surface of the base film so as to be electrically connected to the microstrip transmission line part; and a ground part formed on the other surface of the base film. The present invention can be implemented in a screen display area of a display device, be applied to a high-frequency band for 3G to 5G mobile communication, and prevent the moire phenomenon caused by components of an antenna, thereby improving the optical characteristics of the display device mounted with the antenna.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: March 9, 2021
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Jong Min Kim, Jae Hyun Lee, Dong Pil Park
  • Publication number: 20210066790
    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: Application
    Filed: December 5, 2019
    Publication date: March 4, 2021
    Inventors: Dong Pil PARK, Yun Seok OH, Yoon Ho HUH
  • Publication number: 20200403297
    Abstract: An image display device according to an embodiment of the present invention includes a printed circuit board, an antenna mounted on the printed circuit board, a display panel disposed on the printed circuit board, and a transmission line disposed on the display panel and electrically connected to the antenna. The transmission line is disposed on the display panel to shorten a signal path and reduce noises.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Dong Pil Park, Yun Seok Oh, Yoon Ho Huh, Won Bin Hong
  • Publication number: 20200403300
    Abstract: An antenna device according to an embodiment of the present invention includes a dielectric layer, an upper electrode layer disposed on the dielectric layer and including a radiation pattern, a lower electrode layer disposed on the dielectric layer, and a bending connection portion integrally connected to the upper electrode layer and the lower electrode layer on the dielectric layer. An interconnection of a ground layer is implemented with high reliability by the bending connection portion.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Jong Min KIM, Dong Pil PARK, Yun Seok OH, Won Bin HONG
  • Patent number: 10852860
    Abstract: The present invention relates to a touch sensor having enhanced durability and optical characteristics and a method of manufacturing the same. The method includes: supplying a touch sensor to an annealing chamber, the touch sensor including a base film and a touch sensor layer formed on the base film; and performing an annealing process on the touch sensor in the annealing chamber, wherein a thickness of a transparent electrode unit constituting the touch sensor layer ranges from about 35 nm to about 150 nm. According to the present invention, by optimizing the thickness and annealing conditions of the transparent electrode unit that affect the durability and optical characteristics of the touch sensor, flexibility and durability of the touch sensor can be simultaneously enhanced while minimizing degradation of the optical characteristics of the touch sensor.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 1, 2020
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Keon Kim, Dong Pil Park, Yong Soo Park
  • Publication number: 20200350695
    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: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Inventors: Jong Min KIM, Dong Pil PARK, Yoon Ho HUH, Won Bin HONG
  • Publication number: 20200266525
    Abstract: A film antenna according to an embodiment of the present invention includes a dielectric layer, and a plurality of radiation patterns on a top surface of the dielectric layer. The plurality of radiation patterns has different resonance frequencies on the same plane. The radiation patterns of different frequency bands are arranged in the film antenna to provide a broadband communication.
    Type: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Inventors: Jong Min KIM, Han Sub RYU, Dong Pil PARK, Won Bin HONG
  • Publication number: 20200251813
    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: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Inventors: Han Sub RYU, Gi Hwan AHN, Dong Pil PARK, Sung Ho BAEK
  • Publication number: 20200251814
    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: Application
    Filed: April 22, 2020
    Publication date: August 6, 2020
    Inventors: Han Sub RYU, Jong Min KIM, Dong Pil PARK
  • Publication number: 20200227819
    Abstract: A touch sensor-antenna module according to exemplary embodiments of the present invention includes a substrate layer, a touch sensor electrode layer disposed on a central portion of an upper surface of the substrate layer, and antenna patterns disposed on a peripheral portion of the upper surface of the substrate layer at the same level as that of the touch sensor electrode layer. Mutual interference between the touch sensor electrode layer and the antenna pattern may be reduced to improve signal reliability and process efficiency.
    Type: Application
    Filed: March 24, 2020
    Publication date: July 16, 2020
    Inventors: Yun Seok OH, Jong Min KIM, Dong Pil PARK, Won Bin HONG
  • Publication number: 20200227835
    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: Application
    Filed: March 24, 2020
    Publication date: July 16, 2020
    Inventors: Jong Min KIM, Dong Pil PARK, Yun Seok OH, Won Bin HONG