Patents by Inventor YeongRak CHOI

YeongRak CHOI 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: 20230308805
    Abstract: A display apparatus is capable of outputting a stereo sound. The display apparatus includes a display panel configured to display an image; a sound generating device on a rear surface of the display panel; a rear cover on the rear surface of the display panel and configured to support the sound generating device; a partition member between the rear surface of the display panel and the rear cover and configured to divide the display panel into first, second, third, fourth and fifth areas; and first, second, third, fourth, and fifth sound generating devices attached to the rear surface of the display panel and configured to vibrate the display panel. The first, second, third, fourth and fifth sound generating devices are in the first, second, third, fourth and fifth areas, respectively.
    Type: Application
    Filed: June 1, 2023
    Publication date: September 28, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Sungsu HAM, YeongRak CHOI, Sungtae LEE, Joongsup HAN
  • Patent number: 11743654
    Abstract: A sound generating device includes a magnet and a center pole on a yoke, a bobbin around the center pole, a coil wound around the bobbin, a frame outside the yoke, a damper between the frame and the bobbin, and a spacer in the bobbin.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: August 29, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sungtae Lee, KwanHo Park, YeongRak Choi, Kwangho Kim
  • Patent number: 11736858
    Abstract: A panel vibration type sound generating display device is disclosed. The display device includes a display panel for displaying an image; a sound generating actuator connected to the display panel and configured to vibrate the display panel to generate sound; a support structure spaced apart from the display panel with an air gap between the support structure and the display panel; and a baffle part disposed between the support structure and the display panel to surround the air gap.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: August 22, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: YeongRak Choi, ChangHo Oh, KwanHo Park, Sungtae Lee
  • Publication number: 20230254618
    Abstract: A display apparatus includes a display device including a display panel configured to display an image and include first to sixth regions, at least one first vibration device and at least one second vibration device respectively at the first region and the second region, at least one third vibration device, at least one fourth vibration device, and at least one fifth vibration device respectively at the fourth to sixth regions, a first partition between the first region and the third region, a second partition between the second region and the third region, a third partition between the fourth region and the sixth region, and a fourth partition between the fifth region and the sixth region, wherein a length of one or more among the first partition and the second partition differs from a length of one or more among the third partition and the fourth partition.
    Type: Application
    Filed: March 27, 2023
    Publication date: August 10, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: YeongRak CHOI, Sungtae LEE, Kwangho KIM, Sungsu HAM, Joongsup HAN
  • Patent number: 11706567
    Abstract: A display apparatus is capable of outputting a stereo sound. The display apparatus includes a display panel configured to display an image; a sound generating device on a rear surface of the display panel; a rear cover on the rear surface of the display panel and configured to support the sound generating device; a partition member between the rear surface of the display panel and the rear cover and configured to divide the display panel into first, second, third, fourth and fifth areas; and first, second, third, fourth, and fifth sound generating devices attached to the rear surface of the display panel and configured to vibrate the display panel. The first, second, third, fourth and fifth sound generating devices are in the first, second, third, fourth and fifth areas, respectively.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: July 18, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sungsu Ham, YeongRak Choi, Sungtae Lee, Joongsup Han
  • Publication number: 20230217189
    Abstract: A sound apparatus can include a vibration member; a housing at a rear surface of the vibration member; a connection member disposed between the vibration member and the housing; and a vibration apparatus configured to vibrate the vibration member. The vibration apparatus can include at least one piezoelectric element for producing sound. Also, the connection member can have a first stiffness that is less than a second stiffness of the housing, and the vibration member can be isolated from the housing by the connection member.
    Type: Application
    Filed: December 29, 2022
    Publication date: July 6, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Daeho KIM, YeongRak CHOI, MinKyu CHOI, Seungo JEON, Kwangho KIM, Jeongbeom LEE, Taehyoung KIM, KwanHo PARK
  • Publication number: 20230209010
    Abstract: A display apparatus includes: a display panel including: a display area configured to display an image, and a non-display area, at least one first sound generator in the display area, and at least one second sound generator in the non-display area, wherein each of the at least one first sound generator and the at least one second sound generator is configured to vibrate the display panel to generate sound toward a front of the display panel.
    Type: Application
    Filed: February 27, 2023
    Publication date: June 29, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Sungtae LEE, SeYoung KIM, KwanHo PARK, YeongRak CHOI, Kwangho KIM, Sungsu HAM
  • Patent number: 11647317
    Abstract: A display apparatus includes a display device including a display panel configured to display an image and include first to sixth regions, at least one first vibration device and at least one second vibration device respectively at the first region and the second region, at least one third vibration device, at least one fourth vibration device, and at least one fifth vibration device respectively at the fourth to sixth regions, a first partition between the first region and the third region, a second partition between the second region and the third region, a third partition between the fourth region and the sixth region, and a fourth partition between the fifth region and the sixth region, wherein a length of one or more among the first partition and the second partition differs from a length of one or more among the third partition and the fourth partition.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: May 9, 2023
    Assignee: LG Display Co., Ltd
    Inventors: YeongRak Choi, Sungtae Lee, Kwangho Kim, Sungsu Ham, Joongsup Han
  • Patent number: 11616928
    Abstract: A display apparatus includes: a display panel including: a display area configured to display an image, and a non-display area, at least one first sound generator in the display area, and at least one second sound generator in the non-display area, wherein each of the at least one first sound generator and the at least one second sound generator is configured to vibrate the display panel to generate sound toward a front of the display panel.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: March 28, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sungtae Lee, SeYoung Kim, KwanHo Park, YeongRak Choi, Kwangho Kim, Sungsu Ham
  • Patent number: 11592863
    Abstract: A display apparatus includes: a display panel configured to display an image, at least one supporting member on a rear surface of the display panel, the at least one supporting member defining a groove, at least one sound generation device adjacent to the display panel, and a wiring, accommodated into the groove, configured to transfer a signal to the at least one sound generation device.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: February 28, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sungtae Lee, KwanHo Park, YeongRak Choi
  • Patent number: 11595744
    Abstract: A display apparatus includes: a display panel configured to display an image, one or more sound generation devices configured to vibrate the display panel to generate sound, a supporting member configured to support the display panel, a partition between the display panel and the supporting member, the partition including: a first side in a horizontal direction, and a second side in a vertical direction, and one or more first pad parts on the first side.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: February 28, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Taecheol Kang, Moonyoung Shin, YeongRak Choi, Sungsu Ham
  • Publication number: 20230019257
    Abstract: A vibration apparatus may include a vibration plate, a vibration generator at the vibration plate, and a connection member between the vibration plate and the vibration generator. The vibration generator may include a vibration structure. The connection member may include a first connection member between the vibration plate and the vibration structure and overlapping the vibration structure. The connection member may also include a second connection member surrounding the first connection member. A modulus of the first connection member may be greater than a modulus of the second connection member.
    Type: Application
    Filed: June 28, 2022
    Publication date: January 19, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Minji KIM, YoungWook HA, Chiwan KIM, GyungBo HA, MinHo SOHN, MinKyu CHOI, Jeonggoo KANG, YuSeon KHO, YeongRak CHOI, Seungo JEON, Kwangho KIM, JunSeok OH
  • Publication number: 20230007387
    Abstract: A sound apparatus may include a vibration member, a housing configured to cover a rear surface of the vibration member, and a vibration apparatus including one or more vibration devices configured to vibrate the vibration member. The vibration member may include a non-planar structure.
    Type: Application
    Filed: June 28, 2022
    Publication date: January 5, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Daeho KIM, YuSeon KHO, Kyungyeol RYU, YeongRak CHOI, KwanHo PARK, MinKyu CHOI, Jeongbeom LEE, Inchan JEONG, MinHo SOHN, Seungo JEON, Kwangho KIM, SeungRyull PARK, JunSeok OH, Chiwan KIM
  • Patent number: 11531512
    Abstract: A display apparatus includes a display panel configured to display an image and including a first to a fifth regions, at least one first and fourth sound generating devices in a left region of a rear surface of the display panel and in the first and fourth regions, at least one second and fifth sound generating device in a right region of the rear surface and in the second and fifth regions, and at least one third sound generating device in a center region of the rear surface and in the third region. The at least one first to third sound generating devices is configured to vibrate the display panel to generate sound, and the at least one fourth and fifth sound generating devices is configured to vibrate the display panel to generate sound in a direction upwards from the display panel.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: December 20, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Sungtae Lee, KwanHo Park, YeongRak Choi, Kwangho Kim
  • Publication number: 20220369024
    Abstract: A display apparatus includes a display module including a display panel configured to display an image, a rear cover on a rear surface of the display module, and a sound generating module at the rear cover and configured to vibrate the display module to generate sound, and a rear surface of the sound generating module is covered by the rear cover.
    Type: Application
    Filed: July 8, 2022
    Publication date: November 17, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Sungtae LEE, Teh Hyeon KIM, YeongRak CHOI, Seungwan Ryu, KwanHo PARK
  • Publication number: 20220286783
    Abstract: A sound generating device includes a magnet and a center pole on a yoke, a bobbin around the center pole, a coil wound around the bobbin, a frame outside the yoke, a damper between the frame and the bobbin, and a spacer in the bobbin.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 8, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Sungtae LEE, KwanHo PARK, YeongRak CHOI, Kwangho KIM
  • Publication number: 20220279277
    Abstract: A display apparatus is capable of outputting a stereo sound. The display apparatus includes a display panel configured to display an image; a sound generating device on a rear surface of the display panel; a rear cover on the rear surface of the display panel and configured to support the sound generating device; a partition member between the rear surface of the display panel and the rear cover and configured to divide the display panel into first, second, third, fourth and fifth areas; and first, second, third, fourth, and fifth sound generating devices attached to the rear surface of the display panel and configured to vibrate the display panel. The first, second, third, fourth and fifth sound generating devices are in the first, second, third, fourth and fifth areas, respectively.
    Type: Application
    Filed: May 13, 2022
    Publication date: September 1, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Sungsu HAM, YeongRak CHOI, Sungtae LEE, Joongsup HAN
  • Patent number: D989032
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: June 13, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kwangchan Lee, Jikyoung Kim, Yeongrak Choi, Chiyoung Lee, Hyunjung Song
  • Patent number: D989033
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: June 13, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chiyoung Lee, Kwangchan Lee, Jikyoung Kim, Yeongrak Choi, Hyunjung Song
  • Patent number: D989034
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: June 13, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Chiyoung Lee, Kwangchan Lee, Jikyoung Kim, Yeongrak Choi, Hyunjung Song