Patents by Inventor Youngdo CHA

Youngdo CHA 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: 20230421682
    Abstract: A mobile terminal is disclosed. The mobile terminal according to an embodiment of the present invention comprises a hinge assembly. The hinge assembly comprises: a pair of body rotation bodies which are arranged to be spaced apart from each other in the widthwise direction of a first body and a second body; a support bridge which is arranged between the pair of body rotation bodies and connects the body rotation bodies to each other; and a display support which is arranged to overlap with the support bridge in the widthwise direction of the first body and the second body and is formed to be movable by being linked to the movement of the support bridge, wherein the display support is, in a first state, arranged to support a flexible display and, in a second state, moves to be spaced apart from the flexible display.
    Type: Application
    Filed: December 7, 2020
    Publication date: December 28, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Chalkee JUNG, Inseok YOO, Eujin KIM, Dongup SEO, Youngdo CHA
  • Patent number: 11611641
    Abstract: A mobile terminal includes: a first body, a second body rotatable relative to the first body, a flexible display disposed on the first body and the second body, and a hinge assembly adjusting the first body and the second body to (i) a first state in which the first body and the second body are disposed in parallel to each other or (ii) a second state in which the first body and the second body are disposed to face each other. The hinge assembly includes body rotators spaced apart from each other in a width direction of the first body, a support bridge disposed between the body rotators to connect each of the body rotators, and a display support disposed to overlap with the support bridge in a width direction of the first body and configured to be movable in connection with a movement of the support bridge.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: March 21, 2023
    Assignee: LG Electronics Inc.
    Inventor: Youngdo Cha
  • Patent number: 11460888
    Abstract: A flexible display device is disclosed. The flexible display device includes a first body, a second body, a flexible display, and a lubrication rail. The lubrication rail is made of self-lubricating engineering plastic, and is provided as a pair of lubrication rails. When the first body and the second body move relative to each other, a surface of the lubrication rail significantly reduces friction that occurs in a contact portion between the first body and the second body.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: October 4, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngdo Cha, Jinyoung Choi
  • Patent number: 11431832
    Abstract: In order to minimize an increase in a bezel of a mobile terminal, provided is a mobile terminal comprising: a display panel; a window coupled to the front surface of the display panel so as to cover the front surface of the display panel; and a seating frame in which the display panel is mounted, wherein the seating frame comprises: a panel seating portion in which at least one region of the display panel is seated; a window seating portion which receives an edge region of the rear surface of the window and forms a large separation space from the rear surface of the window inward; and a sidewall portion forming a sidewall connecting the window seating portion and the panel seating portion, wherein the sidewall portion is recessed outward in a region corresponding to a side portion of the display panel.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: August 30, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngdo Cha, Sunglyong Cha, Sarah Kim, Minbok Lee, Dongwon Han
  • Patent number: 11379013
    Abstract: An electronic device including a flexible display having a first region and a second region; a first frame supporting the first region and rotatable about a first axis; a second frame supporting the second region and rotatable about a second axis different than the first axis; and a hinge module connecting the first frame and the second frame and including a gear mechanism so the first frame rotatable about the first axis and the second frame rotatable about the second axis rotate in conjunction and synchronization with each other when the electronic device is folded and unfolded.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: July 5, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngdo Cha, EuJin Kim, Jungyun Lee, Junhong Kang
  • Publication number: 20220182476
    Abstract: The present invention relates to a foldable mobile terminal characterized by comprising: a foldable body; a flexible display panel which is provided on one surface of the body and folds together with the body; and a protective cover covering the flexible display panel. The protective cover comprises a first cover covering a foldable first area in the flexible display panel, and a second cover covering second covers provided on both sides of the first area in the flexible display panel. The second cover is made of a material which is different from the material of the first cover, and has a higher rigidity than the first cover.
    Type: Application
    Filed: May 8, 2019
    Publication date: June 9, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Youngdo CHA, Jungyun LEE
  • Publication number: 20220182471
    Abstract: A mobile terminal includes: a first body, a second body rotatable relative to the first body, a flexible display disposed on the first body and the second body, and a hinge assembly adjusting the first body and the second body to (i) a first state in which the first body and the second body are disposed in parallel to each other or (ii) a second state in which the first body and the second body are disposed to face each other. The hinge assembly includes body rotators spaced apart from each other in a width direction of the first body, a support bridge disposed between the body rotators to connect each of the body rotators, and a display support disposed to overlap with the support bridge in a width direction of the first body and configured to be movable in connection with a movement of the support bridge.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 9, 2022
    Inventor: Youngdo CHA
  • Patent number: 11281259
    Abstract: The present invention relates to a mobile terminal comprising: a front case having a display mounted on the front part thereof; a rear case coupled to one side of the front case and coupled to the rear part of same; a main circuit board provided between the front case and the rear case; and a fluid movement port having a groove, of a predetermined depth, formed to be adjacent to the edge of the front part of the front case and extend in one direction, wherein the fluid movement port can guide the movement of fluid which enters through gaps between the display and the front case.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: March 22, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngdo Cha, Minbok Lee, Jinwoo Park, Sunglyong Cha
  • Publication number: 20220066510
    Abstract: A flexible display device is disclosed. The flexible display device includes a first body, a second body, a flexible display, and a lubrication rail. The lubrication rail is made of self-lubricating engineering plastic, and is provided as a pair of lubrication rails. When the first body and the second body move relative to each other, a surface of the lubrication rail significantly reduces friction that occurs in a contact portion between the first body and the second body.
    Type: Application
    Filed: November 2, 2020
    Publication date: March 3, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Youngdo CHA, Jinyoung CHOI
  • Publication number: 20210365073
    Abstract: An electronic device including a flexible display having a first region and a second region; a first frame supporting the first region and rotatable about a first axis; a second frame supporting the second region and rotatable about a second axis different than the first axis; and a hinge module connecting the first frame and the second frame and including a gear mechanism so the first frame rotatable about the first axis and the second frame rotatable about the second axis rotate in conjunction and synchronization with each other when the electronic device is folded and unfolded.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 25, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Youngdo CHA, EuJin KIM, Jungyun LEE, Junhong KANG
  • Publication number: 20210243290
    Abstract: In order to minimize an increase in a bezel of a mobile terminal, provided is a mobile terminal comprising: a display panel; a window coupled to the front surface of the display panel so as to cover the front surface of the display panel; and a seating frame in which the display panel is mounted, wherein the seating frame comprises: a panel seating portion in which at least one region of the display panel is seated; a window seating portion which receives an edge region of the rear surface of the window and forms a large separation space from the rear surface of the window inward; and a sidewall portion forming a sidewall connecting the window seating portion and the panel seating portion, wherein the sidewall portion is recessed outward in a region corresponding to a side portion of the display panel.
    Type: Application
    Filed: May 3, 2018
    Publication date: August 5, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Youngdo CHA, Sunglyong CHA, Sarah KIM, Minbok LEE, Dongwon HAN
  • Patent number: 11003217
    Abstract: A flexible display device including a first body; a second body; and a flexible display unit arranged on a front surface of the first body and the second body. Further, in a folded state of the flexible display unit, the second body covers a rear surface of the first body, a first part of the flexible display unit is wound around a bearing portion in the first body and a second part of the flexible display unit is exposed to the outside; in an unfolded state of the flexible display unit, the first body and the second body are arranged in parallel; and in an extending state of the flexible display unit from the unfolded state, the first body is extended and the first part of the flexible display unit is unwound from the bearing portion and exposed on an extended portion of the flexible display device.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 11, 2021
    Assignee: LG ELECTRONICS INC.
    Inventor: Youngdo Cha
  • Patent number: 10993338
    Abstract: A flexible display device including a first body; a second body; a flexible display unit arranged on a front surface of the first body and the second body; and a hinge unit connecting the first body and the second body to each other such that the first body and the second body can be folded and unfolded with respect to each other. Further, the hinge unit includes a plurality of hinge segments such that in a folding state of the flexible display unit, the second body is arranged to cover a rear surface of the first body as an interval between the hinge segments is increased, and in an unfolded state of the flexible display unit, the first body and the second body are arranged in parallel with the interval between the hinge segments being decreased.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 27, 2021
    Assignee: LG ELECTRONICS INC.
    Inventor: Youngdo Cha
  • Patent number: 10976775
    Abstract: A roll-slide mobile terminal including a case including a first frame and a second frame configured to slide and extend in a first direction with respect to the first frame, a flexible display wound over a front surface and a rear surface of the case, wherein an area of the front surface of the flexible display is increased or decreased in size based on a sliding movement of the second frame, a slide assembly provided in one member of the first frame and the second frame and including a shaft having a rotation axis in the first direction and forming a screw line along the rotation axis, wherein the second frame slidably moves with respect to the first frame according to a rotation of the shaft, and a screw hole provided in the other member of the first frame and the second frame, the screw hole configured to engage the screw line of the shaft passing through the screw hole.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: April 13, 2021
    Assignee: LG ELECTRONICS INC.
    Inventor: Youngdo Cha
  • Publication number: 20210034114
    Abstract: The present invention relates to a mobile terminal comprising: a front case having a display mounted on the front part thereof; a rear case coupled to one side of the front case and coupled to the rear part of same; a main circuit board provided between the front case and the rear case; and a fluid movement port having a groove, of a predetermined depth, formed to be adjacent to the edge of the front part of the front case and extend in one direction, wherein the fluid movement port can guide the movement of fluid which enters through gaps between the display and the front case.
    Type: Application
    Filed: May 11, 2018
    Publication date: February 4, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Youngdo CHA, Minbok LEE, Jinwoo PARK, Sunglyong CHA
  • Patent number: 10868897
    Abstract: Disclosed is a mobile terminal comprising a first frame comprising a plurality of first support portions extended in a horizontal direction, and vertically spaced a preset distance apart from another one of the plurality of first support portions; a second frame comprising a plurality of second support portions provided between respectively corresponding first support portions and configured to slidingly move relative to the first frame in the horizontal direction, causing a change from a first state to a second state in which the mobile terminal is expanded; and a flexible display comprising a first area provided on a front surface of the first plurality of first support portion; and a second area provided on a rear side of the first area by being folded to surround the second frame.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: December 15, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngdo Cha, Dongsung Kim, Sunglyong Cha
  • Patent number: 10827054
    Abstract: The present invention provides a mobile terminal comprising: a terminal body including an opening region through which a sound is outputted; and a waterproof speaker module arranged adjacently to the opening region and outputting the sound, wherein the waterproof speaker module includes a speaker module forming the sound, a housing accommodating the speaker module and including a sound hole through which the sound is outputted, and a cover part connected to the housing so as to form a separation space in which the sound is outputted by the sound hole, and moved by a water pressure at least that of a certain reference pressure so as to cover the sound hole, thereby preventing the inflow of water into the speaker module.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: November 3, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngdo Cha, Yongho Lee, Bonghyun Lee
  • Patent number: 10820433
    Abstract: A flexible display device including a first body; a second body; a flexible display unit arranged on a front surface of the first and second bodies; and a rear plate coupled to a rear surface of the flexible display unit, and configured to be transformed together with the flexible display unit.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: October 27, 2020
    Assignee: LG ELECTRONICS INC.
    Inventor: Youngdo Cha
  • Patent number: 10804047
    Abstract: The mobile terminal is disclosed. The mobile terminal of the present invention may include a display unit, a body, a first signal unit, a second signal unit, and a signal connection module. The signal connection module may be disposed in a hole formed in the body to shield the hole. The signal connection module may electrically connect the first signal unit and the second signal unit. The first signal unit may be various circuit boards. The second signal unit may have a function of receiving an input or an antenna function.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 13, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngdo Cha, Hyunsu Song, Bonghyun Lee
  • Publication number: 20200304613
    Abstract: Disclosed is a mobile terminal comprising a first frame comprising a plurality of first support portions extended in a horizontal direction, and vertically spaced a preset distance apart from another one of the plurality of first support portions; a second frame comprising a plurality of second support portions provided between respectively corresponding first support portions and configured to slidingly move relative to the first frame in the horizontal direction, causing a change from a first state to a second state in which the mobile terminal is expanded; and a flexible display comprising a first area provided on a front surface of the first plurality of first support portion; and a second area provided on a rear side of the first area by being folded to surround the second frame.
    Type: Application
    Filed: August 22, 2019
    Publication date: September 24, 2020
    Applicant: LG ELECTRONICS INC.
    Inventors: Youngdo CHA, Dongsung KIM, Sunglyong CHA