Patents by Inventor Hwan-Jin Kim
Hwan-Jin Kim 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: 11455014Abstract: Provided is a foldable display device. The foldable display device includes a housing comprising a folding area, a first unfolding area adjacent to the folding area, and a second unfolding area adjacent to the folding area and under the first unfolding area; a display panel located at the first unfolding area and the second unfolding area that is capable of providing light through a first surface and a second surface opposite the first surface; a shutter layer on the display panel in the first unfolding area that controls whether light is transmitted; a window on the shutter layer; and a shielding layer located at the second unfolding area that is capable of blocking the light.Type: GrantFiled: March 26, 2019Date of Patent: September 27, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hwan Jin Kim, Sang Gu Kim
-
Publication number: 20210336255Abstract: The present disclosure relates to a method for producing a negative electrode material for a secondary battery having excellent electrochemical performance by using a silicon oxide with a low oxygen content, and a negative electrode material for a secondary battery produced by the method, a secondary battery, wherein the method comprises a gel-forming step of introducing SiCl4 and then ethylene glycol into a reactor at a temperature of 0° C. to 25° C. under an inert atmosphere to form a gel; a preheating step of heating the gel to a temperature of 200° C. to 500° C.; and a heat treatment step of heating the gel subjected to the preheating step to a temperature of 500° C. to 1100° C. to form a silicon oxide.Type: ApplicationFiled: July 26, 2019Publication date: October 28, 2021Inventors: Chang Hee SHIN, Seok Won JEON, Hwan Jin KIM, Keun Young YOON, Shin Won RYU, Ki Jun AHN, Seung Hoon YOO
-
Patent number: 10879493Abstract: A display device includes a display panel that includes a display area and a non-display area that surrounds the display area; a selective light-transmitting layer disposed under the display panel that blocks visible light and transmits infrared light; a panel bottom sheet disposed under the selective light-transmitting layer that includes a first opening in the display area that exposes the selective light-transmitting layer; and a first infrared sensor inserted in the first opening.Type: GrantFiled: December 11, 2018Date of Patent: December 29, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hwan Jin Kim, Gyeong Sang Park
-
Publication number: 20190346883Abstract: Provided is a foldable display device. The foldable display device includes a housing comprising a folding area, a first unfolding area adjacent to the folding area, and a second unfolding area adjacent to the folding area and under the first unfolding area; a display panel located at the first unfolding area and the second unfolding area that is capable of providing light through a first surface and a second surface opposite the first surface; a shutter layer on the display panel in the first unfolding area that controls whether light is transmitted; a window on the shutter layer; and a shielding layer located at the second unfolding area that is capable of blocking the light.Type: ApplicationFiled: March 26, 2019Publication date: November 14, 2019Inventors: Hwan Jin KIM, Sang Gu KIM
-
Publication number: 20190296266Abstract: A display device includes a display panel that includes a display area and a non-display area that surrounds the display area; a selective light-transmitting layer disposed under the display panel that blocks visible light and transmits infrared light; a panel bottom sheet disposed under the selective light-transmitting layer that includes a first opening in the display area that exposes the selective light-transmitting layer; and a first infrared sensor inserted in the first opening.Type: ApplicationFiled: December 11, 2018Publication date: September 26, 2019Inventors: HWAN JIN KIM, Gyeong Sang Park
-
Patent number: 10286309Abstract: A three-dimensional image device for providing an improved sense of immersion includes: a moving stage that includes a seat on which a viewer sits and a seat moving mechanism for moving the seat; a first transparent curved display located in front of the viewer and having a curved surface shape that is concave in the direction in which the viewer watches the first curved display, wherein the seat moves according to a first displayed image; and a second curved display located behind the first curved display and having a curved surface shape that is concave in the direction in which the viewer watches the second curved display, wherein the second curved display displays a second image overlapping the first image. Accordingly, it is possible to enhance the three-dimensional effect of a three-dimensional image, to increase a sense of immersion, and to improve a sense of realism.Type: GrantFiled: September 4, 2015Date of Patent: May 14, 2019Assignee: TOVIS CO., LTD.Inventors: Kyung Ha Lee, Hwan Jin Kim, Ryong Min Park
-
Patent number: 10222638Abstract: Disclosed are a curved display manufacturing apparatus, comprising: a curved surface suction mold comprising a panel seat surface having a curved shape corresponding to a curved shape of the curved display to be formed, and air sucking holes formed through the panel seat surface; an air sucking unit for sucking air through the air sucking holes; a main frame for supporting the curved surface suction mold, to space the curved surface suction mold from a bottom of the main frame; and a pressing roller unit for pressing a curvature maintaining member to maintain the display panel in a bent state while sliding along a curved surface of the display panel under a condition that the curvature maintaining member overlaps with the display panel, for pressed attachment of the curvature maintaining member to the display panel.Type: GrantFiled: November 10, 2014Date of Patent: March 5, 2019Assignee: TOVIS CO., LTD.Inventors: Hwan Jin Kim, Chang Min Oh, Gi Yun Eom
-
Publication number: 20190022524Abstract: A three-dimensional image device for providing an improved sense of immersion includes: a moving stage that includes a seat on which a viewer sits and a seat moving mechanism for moving the seat; a first transparent curved display located in front of the viewer and having a curved surface shape that is concave in the direction in which the viewer watches the first curved display, wherein the seat moves according to a first displayed image; and a second curved display located behind the first curved display and having a curved surface shape that is concave in the direction in which the viewer watches the second curved display, wherein the second curved display displays a second image overlapping the first image. Accordingly, it is possible to enhance the three-dimensional effect of a three-dimensional image, to increase a sense of immersion, and to improve a sense of realism.Type: ApplicationFiled: September 4, 2015Publication date: January 24, 2019Applicant: TOVIS CO., LTD.Inventors: Kyung Ha LEE, Hwan Jin KIM, Ryong Min PARK
-
Patent number: 10151949Abstract: A backlight unit of a curved display device to irradiate a curved display panel with light comprises: a light source configured to emit light to the display panel; and a back plate including a plurality of planar sections, each having a predetermined width, arranged in a circumferential direction of the display panel on a concentric circle, the center point of which coincides with the center point of a virtual circle defined by the curved display panel, the planar sections of the back plate being bent relative to each other into a curved form such that the light source is installed to the respective bent sections of the bent curved back plate.Type: GrantFiled: December 19, 2014Date of Patent: December 11, 2018Assignee: TOVIS CO., LTD.Inventors: Hwan Jin Kim, Gi Yun Eom
-
Patent number: 10048523Abstract: A method of etching a display panel for manufacturing a curved display device comprises the steps of: applying a masking ink in a manner of immersing a non-etched portion of a display panel into an ink reservoir, which contains the masking ink, in order to protrude the non-etched portion from the display panel; curing the masking ink coated on the non-etched portion of the display panel; etching the display panel to reduce the thickness of the display panel by coating an etching liquid onto the display panel on which the masking ink is cured; and removing the masking ink from the etched display panel with a solvent, which dissolves the masking ink.Type: GrantFiled: December 24, 2014Date of Patent: August 14, 2018Assignee: TOVIS CO., LTD.Inventors: Hwan Jin Kim, Gi Yun Eom
-
Publication number: 20180004039Abstract: A backlight unit of a curved display device to irradiate a curved display panel with light comprises: a light source configured to emit light to the display panel; and a back plate including a plurality of planar sections, each having a predetermined width, arranged in a circumferential direction of the display panel on a concentric circle, the center point of which coincides with the center point of a virtual circle defined by the curved display panel, the planar sections of the back plate being bent relative to each other into a curved form such that the light source is installed to the respective bent sections of the bent curved back plate.Type: ApplicationFiled: December 19, 2014Publication date: January 4, 2018Applicant: TOVIS CO., LTD.Inventors: Hwan Jin KIM, Gi Yun EOM
-
Publication number: 20170351135Abstract: A method of etching a display panel for manufacturing a curved display device comprises the steps of: applying a masking ink in a manner of immersing a non-etched portion of a display panel into an ink reservoir, which contains the masking ink, in order to protrude the non-etched portion from the display panel; curing the masking ink coated on the non-etched portion of the display panel; etching the display panel to reduce the thickness of the display panel by coating an etching liquid onto the display panel on which the masking ink is cured; and removing the masking ink from the etched display panel with a solvent, which dissolves the masking ink.Type: ApplicationFiled: December 24, 2014Publication date: December 7, 2017Applicant: TOVIS CO., LTD.Inventors: Hwan Jin KIM, Gi Yun EOM
-
Publication number: 20170255033Abstract: Disclosed are a curved display manufacturing apparatus, comprising: a curved surface suction mold comprising a panel seat surface having a curved shape corresponding to a curved shape of the curved display to be formed, and air sucking holes formed through the panel seat surface; an air sucking unit for sucking air through the air sucking holes; a main frame for supporting the curved surface suction mold, to space the curved surface suction mold from a bottom of the main frame; and a pressing roller unit for pressing a curvature maintaining member to maintain the display panel in a bent state while sliding along a curved surface of the display panel under a condition that the curvature maintaining member overlaps with the display panel, for pressed attachment of the curvature maintaining member to the display panel.Type: ApplicationFiled: November 10, 2014Publication date: September 7, 2017Applicant: TOVIS CO., LTD.Inventors: Hwan Jin KIM, Chang Min OH, Gi Yun EOM
-
Patent number: 9685636Abstract: A display device including: a display panel; a bottom cover configured to accommodate the display panel; and a composite sheet disposed between the display panel and the bottom cover. The composite sheet includes a buffer sheet having at least one through hole and at least one heat-dissipating sheet accommodated in the through hole.Type: GrantFiled: January 5, 2015Date of Patent: June 20, 2017Assignee: Samsung Display Co., Ltd.Inventors: Kyung Jun Park, Hwan Jin Kim
-
Patent number: 9581844Abstract: A curved-surface display panel fabrication method for fabricating a curved display panel having a desired curved shape using a flat display panel having a first substrate and a second substrate, includes: paring partially outer surfaces of the first substrate and the second substrate so as to reduce thicknesses thereof to a predetermined thickness; and attaching a reinforcing plate having the same shape with the desired curved shape and light transmitting characteristics to the display panel using an adhesive layer which is formed on at least a portion of edge portions of the display panel in a state that the pared flat display panel is bent to the desired curved shape.Type: GrantFiled: August 25, 2011Date of Patent: February 28, 2017Assignee: TOVIS CO., LTD.Inventors: Yang-Rae Kim, Hwan-Jin Kim, Jin-Woo Lee
-
Patent number: 9306188Abstract: An organic light emitting diode display having a flat region having a flat surface, and curved regions disposed at left and right sides of the flat region and formed in curved surfaces, having a display panel including a substrate, which maintains a flat surface in the flat region, and is formed in curved surfaces in the curved regions, and organic light emitting diodes disposed on the substrate, a window disposed in the flat region and the curved regions on the display panel, and a cover member disposed under the display panel, in which the cover member includes a flat cover member disposed in the flat region and curved cover members disposed in the curved regions, and the flat cover member and the curved cover member are formed of different materials or have different thicknesses.Type: GrantFiled: May 29, 2014Date of Patent: April 5, 2016Assignee: Samsung Display Co., Ltd.Inventors: Min Seop Kim, Hwan Jin Kim
-
Patent number: 9275561Abstract: An optical adhesive film for improving the adhesive strength between constitutional elements of a flat panel display device, and a flat panel display device having the same. According to an aspect of the present invention, there is provided an optical adhesive film for use in a flat panel display module that displays an image, the optical adhesive film including a transmission unit disposed on the flat panel display module and allowing the image to transmit through the transmission unit; a wing member extending from at least one side surface of the transmission unit, and covering side surfaces and a portion of a rear surface of the flat panel display module; and an adhesive member disposed covering all surfaces of the transmission unit and the wing member.Type: GrantFiled: September 23, 2011Date of Patent: March 1, 2016Assignee: Samsung Display Co., Ltd.Inventors: Hwan-Jin Kim, Jeong-Ho Hwang
-
Publication number: 20160027718Abstract: A display device including: a display panel; a bottom cover configured to accommodate the display panel; and a composite sheet disposed between the display panel and the bottom cover. The composite sheet includes a buffer sheet having at least one through hole and at least one heat-dissipating sheet accommodated in the through hole.Type: ApplicationFiled: January 5, 2015Publication date: January 28, 2016Inventors: Kyung Jun PARK, Hwan Jin KIM
-
Patent number: 9178176Abstract: An organic light emitting display device may include a first cover, a protection member disposed on the first cover, a display panel disposed on the protection member, and a second cover disposed on the protection member. The protection member may include a plurality of layers having a plurality of pores, respectively. The protection member may reduce or remove a tolerance generated in manufacturing processes, and also may absorb or remove an external impact.Type: GrantFiled: September 25, 2014Date of Patent: November 3, 2015Assignee: Samsung Display Co., Ltd.Inventors: Min-Seop Kim, Hwan-Jin Kim
-
Patent number: D969870Type: GrantFiled: June 4, 2020Date of Patent: November 15, 2022Inventor: Hwan Jin Kim