Patents Assigned to Tovis Co., Ltd.
  • Patent number: 11978362
    Abstract: A transparent display device using rotation-based persistence of vision includes: an opaque display unit that displays first images; a transparent display unit that includes image display bars, which are positioned outside the opaque display unit and on each of which a plurality of light emitting elements are mounted, and a display bar driving unit which rotates the image display bars, the transparent display unit displaying second images which are viewed to overlap the first images by persistence of vision based on rotation of the image display bars; and a display casing that accommodates both the opaque and transparent display units in a state where the transparent display unit is positioned outside the opaque display unit, the display casing having a sight window through which the first images and the second images are viewed at a preset region.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: May 7, 2024
    Assignee: TOVIS CO., LTD.
    Inventor: Seung Bum Cho
  • Patent number: 11822174
    Abstract: A button complex structure according to one embodiment of solving the aspect may include: a display panel including a first substrate, a second substrate on the first substrate, and a liquid crystal layer between the first substrate and the second substrate; a member on the second substrate; a first coupling member configured to couple the display panel to one surface of the member; a button structure disposed on the other surface opposite to the one surface of the member; and a second coupling member configured to couple the other surface of the member to the button structure, wherein the member includes a third substrate and the button structure is directly coupled to the third substrate via the second coupling member, wherein the button structure includes a button body fixed to the third substrate, a button circuit unit fastened to the button body, a button connected to the button circuit unit, and further includes a first communication unit disposed between the member and the display panel and a second co
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: November 21, 2023
    Assignee: TOVIS CO., LTD.
    Inventors: Yong Beom Kim, Joon Seog Kim
  • Publication number: 20230185130
    Abstract: The present invention relates to a light guide plate including a plurality of cutting areas, the light guide plate capable of solving the problem of brightness degradation between the plurality of cutting areas by attaching a predetermined member, which is reactive to light, to at least one of the inner sides of the cutting areas.
    Type: Application
    Filed: April 28, 2021
    Publication date: June 15, 2023
    Applicant: TOVIS CO., LTD.
    Inventor: Chang Min OH
  • Patent number: 11627304
    Abstract: A transparent display device includes an image display bar in which a plurality of light-emitting elements are arranged, and a bar driving unit which moves the image display bar along a predetermined path and provides transparent display using afterimages resulting from the movement of the light-emitting elements, wherein the transparency of the transparent display using afterimages is determined by the equation, transparency (%)=((A?B)/A)*100, where A denotes the entire display area of the transparent display, and B denotes the area of the image display bar.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: April 11, 2023
    Assignee: TOVIS CO., LTD.
    Inventor: Yong Beom Kim
  • Publication number: 20230072005
    Abstract: A device for varying the shape of a display panel includes: a variable case in which a flexible display panel is installed, the variable case having a variable shape that can be changed in order to change the shape of the display panel; and a driving unit for driving the variable case. The variable case includes: a first curved accommodation portion by which one end of the display panel is bent into a curved surface and fixed; a second curved accommodation portion by which the other end of the display panel is bent into a curved surface and fixed so that the one end and other end of the display panel form a single curved surface; and a hinge portion which rotatably connects the first curved accommodation portion and the second curved accommodation portion.
    Type: Application
    Filed: January 11, 2021
    Publication date: March 9, 2023
    Applicant: TOVIS CO., LTD.
    Inventor: Chang Min OH
  • Publication number: 20220376021
    Abstract: A double-sided organic light-emitting display device includes: a first electrode layer for emitting electrons; a second electrode layer which emits holes and is disposed perpendicularly to the first electrode layer; an organic light-emitting layer interposed between the first electrode layer and the second electrode layer, and including multiple pixels so as to emit light at a portion where the first electrode layer and the second electrode layer intersect with each other, by the collision between the electrons and the holes; and a reflector unit formed in an arbitrary pattern which reflects, in the opposite direction, light transmitted through the first or the second electrode layer, or a pattern reversed with respect to the arbitrary pattern, such that the multiple pixels display a first image on one surface in the arbitrary pattern, and display a second image on the other surface in the pattern reversed with respect to the arbitrary pattern.
    Type: Application
    Filed: December 10, 2020
    Publication date: November 24, 2022
    Applicant: TOVIS CO., LTD.
    Inventor: Won Gyu LEE
  • Publication number: 20220277671
    Abstract: A transparent display device using rotation-based persistence of vision includes: an opaque display unit that displays first images; a transparent display unit that includes image display bars, which are positioned outside the opaque display unit and on each of which a plurality of light emitting elements are mounted, and a display bar driving unit which rotates the image display bars, the transparent display unit displaying second images which are viewed to overlap the first images by persistence of vision based on rotation of the image display bars; and a display casing that accommodates both the opaque and transparent display units in a state where the transparent display unit is positioned outside the opaque display unit, the display casing having a sight window through which the first images and the second images are viewed at a preset region.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 1, 2022
    Applicant: TOVIS CO., LTD.
    Inventor: Seung Bum CHO
  • Publication number: 20220276821
    Abstract: A display device of the present invention includes: a first display unit that displays an image in a first display mode; a second display unit that displays an image in a second display mode different from the first display mode; and a control unit that controls operations of the first display unit, and the second display unit in accordance with a preset control condition.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 1, 2022
    Applicant: TOVIS CO., LTD.
    Inventor: Yong Beom KIM
  • Patent number: 11183533
    Abstract: A method of manufacturing a curved-surface detector includes: slimming a sensor substrate having photoelectric devices arranged therein to a predetermined thickness; seating the sensor substrate slimmed to the predetermined thickness on a jig curved so as to have a curved-surface shape such that the sensor substrate is curved so as to have a curved-surface shape; and joining a flexible scintillator substrate configured to emit light when being struck by radiation to an upper surface of the sensor substrate such that curvature of the sensor substrate curved so as to have a curved-surface shape by the jig is maintained.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: November 23, 2021
    Assignee: TOVIS CO., LTD.
    Inventor: Yong Beom Kim
  • Patent number: 11099414
    Abstract: A method of manufacturing a curved display panel, includes: polishing a portion of the flat display panel that is to form a protrusion, which protrudes in order to protect a portion, to which a drive circuit board is attached, through mechanical polishing so as to have a preset thickness; installing a sealing member, which protects the flat display panel, polished in the polishing, from an etchant by surrounding both the portion that is to form the protrusion and the drive circuit board; and etching an entirety of both surfaces of the flat display panel using the etchant, excluding a portion on which the sealing member is provided, so that the flat display panel, having the sealing member installed in the installing, has a thickness smaller than a thickness of the protrusion.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: August 24, 2021
    Assignee: TOVIS CO., LTD.
    Inventors: Kyung Ha Lee, Yong Beom Kim, In Suk Lee
  • Publication number: 20210235069
    Abstract: A transparent display device includes an image display bar in which a plurality of light-emitting elements are arranged, and a bar driving unit which moves the image display bar along a predetermined path and provides transparent display using afterimages resulting from the movement of the light-emitting elements, wherein the transparency of the transparent display using afterimages is determined by the equation, transparency (%)=((A?B)/A)*100, where A denotes the entire display area of the transparent display, and B denotes the area of the image display bar.
    Type: Application
    Filed: July 29, 2019
    Publication date: July 29, 2021
    Applicant: TOVIS CO., LTD.
    Inventor: Yong Beom KIM
  • Patent number: 11023062
    Abstract: A bezel-less touch screen apparatus includes: a display panel for displaying an image; and a touch sheet superposed on the display panel, for generating an input signal by a touch by an operator, wherein the touch sheet includes: a touch area for generating a touch signal, the touch area being located on an image display area of the display panel, in which an image is displayed; and a side surface attachment part on which signal electrodes are gathered from the edge of the touch area and connected to a controller and that is bent and attached to the side surfaces of the display panel so as to not protrude over the edge of the display panel. Therefore, the bezel width can be minimized.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: June 1, 2021
    Assignee: TOVIS CO., LTD.
    Inventors: Yong Beom Kim, In Su Park
  • Patent number: 10976614
    Abstract: A method of manufacturing a stretched display panel includes: cutting the TFT substrate to a desired size; cutting the color filter substrate; forming an open-circuit line for open-circuiting a portion defined between a horizontal pixel line that is located at an end of the TFT substrate and another horizontal pixel line adjacent thereto in order to prevent electrical noise due to the horizontal pixel lines being introduced into the end of the TFT substrate exposed from the pixel exposure portion; and forming a reinforcement seal for covering the pixel exposure portion using a reinforcement material in order to prevent occurrence of short circuit due to introduction of foreign matter into a gap defined between the horizontal pixel line and the other horizontal pixel line and at the same time to increase rigidity of the pixel exposure portion.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: April 13, 2021
    Assignee: TOVIS CO., LTD.
    Inventors: Kyung Ha Lee, Kyoung Hun Yang, Young Tae Jeong, Won Gyu Lee
  • Publication number: 20210104183
    Abstract: A method of manufacturing a stretched display panel includes: cutting the TFT substrate to a desired size; cutting the color filter substrate; forming an open-circuit line for open-circuiting a portion defined between a horizontal pixel line that is located at an end of the TFT substrate and another horizontal pixel line adjacent thereto in order to prevent electrical noise due to the horizontal pixel lines being introduced into the end of the TFT substrate exposed from the pixel exposure portion; and forming a reinforcement seal for covering the pixel exposure portion using a reinforcement material in order to prevent occurrence of short circuit due to introduction of foreign matter into a gap defined between the horizontal pixel line and the other horizontal pixel line and at the same time to increase rigidity of the pixel exposure portion.
    Type: Application
    Filed: March 26, 2018
    Publication date: April 8, 2021
    Applicant: TOVIS CO., LTD.
    Inventors: Kyung Ha LEE, Kyoung Hun YANG, Young Tae JEONG, Won Gyu LEE
  • Publication number: 20210074760
    Abstract: A method of manufacturing a curved-surface detector includes: slimming a sensor substrate having photoelectric devices arranged therein to a predetermined thickness; seating the sensor substrate slimmed to the predetermined thickness on a jig curved so as to have a curved-surface shape such that the sensor substrate is curved so as to have a curved-surface shape; and joining a flexible scintillator substrate configured to emit light when being struck by radiation to an upper surface of the sensor substrate such that curvature of the sensor substrate curved so as to have a curved-surface shape by the jig is maintained.
    Type: Application
    Filed: November 5, 2018
    Publication date: March 11, 2021
    Applicant: TOVIS CO., LTD.
    Inventor: Yong Beom KIM
  • Patent number: 10901206
    Abstract: A head-mounted display (HMD) device includes: an HMD unit comprising a display panel configured to display an image and at least one lens for viewing the image on the display panel at a close distance; a distance-sensing sensor provided on the HMD unit to sense a distance between a user and the HMD unit to make the HMD unit be spaced apart from the user by a preset distance and avoid contact with the user; and a unit movement mechanism configured to position the HMD unit in front of the eyes of the user based on information sensed by the distance-sensing sensor to make the HMD unit avoid contact with the user.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 26, 2021
    Assignee: TOVIS CO., LTD.
    Inventor: Yong Beom Kim
  • Patent number: 10882300
    Abstract: A method for manufacturing a curved display panel using a prefabricated flat liquid crystal panel including a lower substrate and an upper substrate formed of glass and opposite each other, each of the lower substrate and the upper substrate being provided with a polarizing plate, and a liquid crystal layer formed between the lower substrate and the upper substrate, includes separating the polarizing plates from the lower substrate and the upper substrate respectively, reducing a thickness of the liquid crystal panel, by removing an outer surface of each of the lower substrate and the upper substrate from which the polarizing plates are separated, to a designated thickness, and bending the liquid crystal panel having the designated thickness in a curved shape.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: January 5, 2021
    Assignee: TOVIS CO., LTD.
    Inventors: Yong Beom Kim, Woon Yong Park
  • Patent number: 10864713
    Abstract: A method for manufacturing a curved display panel using a prefabricated flat liquid crystal panel including a lower substrate and an upper substrate formed of glass and opposite each other, each of the lower substrate and the upper substrate being provided with a polarizing plate, and a liquid crystal layer formed between the lower substrate and the upper substrate, includes separating the polarizing plates from the lower substrate and the upper substrate respectively, reducing a thickness of the liquid crystal panel, by removing an outer surface of each of the lower substrate and the upper substrate from which the polarizing plates are separated, to a designated thickness, and bending the liquid crystal panel having the designated thickness in a curved shape.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: December 15, 2020
    Assignee: TOVIS CO., LTD.
    Inventors: Yong Beom Kim, Woon Yong Park
  • Publication number: 20200326535
    Abstract: A head-mounted display (HMD) device includes: an HMD unit comprising a display panel configured to display an image and at least one lens for viewing the image on the display panel at a close distance; a distance-sensing sensor provided on the HMD unit to sense a distance between a user and the HMD unit to make the HMD unit be spaced apart from the user by a preset distance and avoid contact with the user; and a unit movement mechanism configured to position the HMD unit in front of the eyes of the user based on information sensed by the distance-sensing sensor to make the HMD unit avoid contact with the user.
    Type: Application
    Filed: May 11, 2017
    Publication date: October 15, 2020
    Applicant: TOVIS CO., LTD.
    Inventor: Yong Beom KIM
  • Patent number: 10806040
    Abstract: A large-sized display device having a partially curved part, includes: a partially curved transparent panel fixing plate comprising a curved part, formed so as to have a predetermined curved surface, and a flat part, formed so as to be continuous with the curved part; a curved display panel formed so as to have a curved surface corresponding to the curved surface of the curved part for displaying an image through the panel fixing plate; and a flat display panel installed at the flat part for displaying an image through the panel fixing plate.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 13, 2020
    Assignee: TOVIS CO., LTD.
    Inventor: Yong Beom Kim