Patents Assigned to Tovis Co., Ltd.
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Patent number: 11978362Abstract: 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: GrantFiled: July 17, 2020Date of Patent: May 7, 2024Assignee: TOVIS CO., LTD.Inventor: Seung Bum Cho
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Patent number: 11822174Abstract: 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 coType: GrantFiled: January 12, 2021Date of Patent: November 21, 2023Assignee: TOVIS CO., LTD.Inventors: Yong Beom Kim, Joon Seog Kim
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Publication number: 20230185130Abstract: 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: ApplicationFiled: April 28, 2021Publication date: June 15, 2023Applicant: TOVIS CO., LTD.Inventor: Chang Min OH
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Patent number: 11627304Abstract: 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: GrantFiled: July 29, 2019Date of Patent: April 11, 2023Assignee: TOVIS CO., LTD.Inventor: Yong Beom Kim
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Publication number: 20230072005Abstract: 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: ApplicationFiled: January 11, 2021Publication date: March 9, 2023Applicant: TOVIS CO., LTD.Inventor: Chang Min OH
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Publication number: 20220376021Abstract: 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: ApplicationFiled: December 10, 2020Publication date: November 24, 2022Applicant: TOVIS CO., LTD.Inventor: Won Gyu LEE
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Publication number: 20220277671Abstract: 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: ApplicationFiled: July 17, 2020Publication date: September 1, 2022Applicant: TOVIS CO., LTD.Inventor: Seung Bum CHO
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Publication number: 20220276821Abstract: 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: ApplicationFiled: July 17, 2020Publication date: September 1, 2022Applicant: TOVIS CO., LTD.Inventor: Yong Beom KIM
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Patent number: 11183533Abstract: 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: GrantFiled: November 5, 2018Date of Patent: November 23, 2021Assignee: TOVIS CO., LTD.Inventor: Yong Beom Kim
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Patent number: 11099414Abstract: 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: GrantFiled: February 17, 2017Date of Patent: August 24, 2021Assignee: TOVIS CO., LTD.Inventors: Kyung Ha Lee, Yong Beom Kim, In Suk Lee
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Publication number: 20210235069Abstract: 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: ApplicationFiled: July 29, 2019Publication date: July 29, 2021Applicant: TOVIS CO., LTD.Inventor: Yong Beom KIM
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Patent number: 11023062Abstract: 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: GrantFiled: April 9, 2018Date of Patent: June 1, 2021Assignee: TOVIS CO., LTD.Inventors: Yong Beom Kim, In Su Park
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Patent number: 10976614Abstract: 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: GrantFiled: March 26, 2018Date of Patent: April 13, 2021Assignee: TOVIS CO., LTD.Inventors: Kyung Ha Lee, Kyoung Hun Yang, Young Tae Jeong, Won Gyu Lee
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Publication number: 20210104183Abstract: 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: ApplicationFiled: March 26, 2018Publication date: April 8, 2021Applicant: TOVIS CO., LTD.Inventors: Kyung Ha LEE, Kyoung Hun YANG, Young Tae JEONG, Won Gyu LEE
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Publication number: 20210074760Abstract: 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: ApplicationFiled: November 5, 2018Publication date: March 11, 2021Applicant: TOVIS CO., LTD.Inventor: Yong Beom KIM
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Patent number: 10901206Abstract: 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: GrantFiled: May 11, 2017Date of Patent: January 26, 2021Assignee: TOVIS CO., LTD.Inventor: Yong Beom Kim
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Patent number: 10882300Abstract: 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: GrantFiled: April 6, 2017Date of Patent: January 5, 2021Assignee: TOVIS CO., LTD.Inventors: Yong Beom Kim, Woon Yong Park
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Patent number: 10864713Abstract: 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: GrantFiled: April 6, 2017Date of Patent: December 15, 2020Assignee: TOVIS CO., LTD.Inventors: Yong Beom Kim, Woon Yong Park
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Publication number: 20200326535Abstract: 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: ApplicationFiled: May 11, 2017Publication date: October 15, 2020Applicant: TOVIS CO., LTD.Inventor: Yong Beom KIM
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Patent number: 10806040Abstract: 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: GrantFiled: October 11, 2017Date of Patent: October 13, 2020Assignee: TOVIS CO., LTD.Inventor: Yong Beom Kim