Patents by Inventor Kang Woo Lee

Kang Woo Lee 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: 20220376192
    Abstract: A display device includes a display panel having a first non-folding area, a folding area connected to the first non-folding area, and a second non-folding area spaced apart from the first non-folding area by the folding area. A base member is disposed on the display panel. The base member includes a pattern area including a plurality of concave portions overlapping the folding area. The plurality of concave portions is spaced apart from each other in a first direction and has a depth in a second direction perpendicular to the first direction. A first filling layer fills the plurality of concave portions. The first filling layer includes at least one material selected from an acrylate, a urethane acrylate, and a silicone resin.
    Type: Application
    Filed: February 10, 2022
    Publication date: November 24, 2022
    Inventors: Youngdo KIM, Hyunseok OH, Kang-Woo LEE, Sunghoon KIM
  • Publication number: 20220376201
    Abstract: A display device includes a folding area foldable about a folding axis and a non-folding area proximate to the folding area. The display device includes a display module that displays an image and a glass window that is disposed over the display module that includes a patterned glass. The patterned glass includes a pattern portion including a groove pattern provided on one surface of the patterned glass to correspond to the folding area and a non-pattern portion disposed adjacent to the pattern portion to correspond to the folding area. The pattern portion has a thickness that is smaller than or equal to one-half a thickness of the non-pattern portion.
    Type: Application
    Filed: February 28, 2022
    Publication date: November 24, 2022
    Inventors: SUNGHOON KIM, Yuri Kim, Kang-Woo Lee, Seongjin Hwang
  • Publication number: 20220374046
    Abstract: A window includes: a substrate including a folding area, a non-folding area, an upper surface, and a lower surface, wherein the folding area is configured to fold about a folding axis; and a plurality of groove patterns arranged in the folding area along a first direction crossing the folding axis, wherein each of the plurality of groove patterns includes: a bottom surface recessed from the upper surface of the substrate and substantially parallel to the upper surface of the substrate; and a side surface, wherein each side surface of the plurality of groove patterns connects each bottom surface of the plurality of groove patterns to the upper surface of the substrate, and wherein the side surface includes at least one curved surface.
    Type: Application
    Filed: February 16, 2022
    Publication date: November 24, 2022
    Inventors: Sunghoon KIM, Yuri KIM, Kang-Woo LEE, Seongjin HWANG
  • Patent number: 11508268
    Abstract: A display device includes: a display panel; and a cover window on the display panel. The display panel and the cover window include a flat area, and a bendable area adjacent to the flat area. The cover window includes: patterns at the bendable area along a first direction; and dummy patterns at the flat area along the first direction, the dummy patterns including a first dummy pattern, and a second dummy pattern adjacent to the first dummy pattern. A length of the first dummy pattern is different from a length of the second dummy pattern.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: November 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang-Woo Lee, Yougn Do Kim, Hyun Seok Oh
  • Patent number: 11428862
    Abstract: A display device includes a display panel for displaying an image; a light guide plate overlapping the display panel and having a light exit surface, a bottoms surface opposite to the light exit surface, and a plurality of edge surfaces; and a plurality of light sources spaced apart from each other and configured to project light into a first edge surface of the plurality of edge surfaces of the light guide plate. The bottom surface includes a plurality of diffusion parts defining an activation area adjacent to a second edge surface of the plurality of edge surfaces opposite to the first edge surface, and a plurality of functional pattern parts defining a pattern area adjacent to the first edge surface. The functional pattern parts overlap a space between adjacent light sources, respectively, when viewed in a first direction heading from the light source part to the first edge surface.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: August 30, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seul-Gi Kim, Yongkyu Kang, Kang Woo Lee
  • Publication number: 20220093012
    Abstract: A display device includes: a display panel; and a cover window on the display panel. The display panel and the cover window include a flat area, and a bendable area adjacent to the flat area. The cover window includes: patterns at the bendable area along a first direction; and dummy patterns at the flat area along the first direction, the dummy patterns including a first dummy pattern, and a second dummy pattern adjacent to the first dummy pattern. A length of the first dummy pattern is different from a length of the second dummy pattern.
    Type: Application
    Filed: April 13, 2021
    Publication date: March 24, 2022
    Inventors: Kang-Woo LEE, Yougn Do KIM, Hyun Seok OH
  • Patent number: 11271191
    Abstract: A display device includes: a display panel including a flat area and a bended area which extends bent from the flat area; and a cover panel comprises a heat dissipation member. The heat dissipation member includes: a flat portion corresponding to the flat area of the display panel, a bent portion corresponding to the bended area of the display panel, a first opening in the flat portion, and a second opening in the bent portion.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-Woo Lee, Sun Hee Oh, Boo-Kan Ki, Dong Hyeon Lee, Jeong In Lee
  • Publication number: 20220063256
    Abstract: A foldable display device includes a display panel including a folding area and a planar area which is adjacent to the folding area, a window on the display panel, and a window protective layer on the window. The window protective layer includes a restoration layer including a soft pattern corresponding to the folding area, a plastic film on the restoration layer, and a hard coating layer on the plastic film.
    Type: Application
    Filed: April 28, 2021
    Publication date: March 3, 2022
    Inventors: YOUNGDO KIM, KANG-WOO LEE, AELY OH, JONGHWAN CHO, SEONGSIK CHOI
  • Publication number: 20210294022
    Abstract: A display device includes a display panel displaying an image, a backlight unit including a light guide plate overlapping the display panel and a light source part including a plurality of light sources providing light to the light incident surface and spaced apart from each other, in which the bottom surface includes an activation area adjacent to the light facing surface and a pattern area adjacent to the light incident surface, diffusion pattern parts disposed in the activation area, and functional pattern parts disposed in the pattern area, and the functional pattern parts overlap spaced spaces between adjacent light sources, respectively, when viewed in a first direction heading from the light source part to the light incident surface.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 23, 2021
    Inventors: Seul-Gi KIM, Yongkyu KANG, Kang Woo LEE
  • Publication number: 20210124110
    Abstract: Provided herein may be a backlight including a light source board, light sources positioned on the light source board, an angular filter disposed on the light source board and the light sources, a first light guide layer configured to disposed between the light source board and the angular filter and to cover the light sources, and a second light guide layer disposed on the angular filter.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 29, 2021
    Inventors: Young Min PARK, Hyuk Hwan KIM, Sun Hee OH, Kang Woo LEE
  • Publication number: 20210036257
    Abstract: A display device includes: a display panel including a flat area and a bended area which extends bent from the flat area; and a cover panel comprises a heat dissipation member. The heat dissipation member includes: a flat portion corresponding to the flat area of the display panel, a bent portion corresponding to the bended area of the display panel, a first opening in the flat portion, and a second opening in the bent portion.
    Type: Application
    Filed: April 10, 2020
    Publication date: February 4, 2021
    Inventors: Kang-Woo LEE, Sun Hee OH, Boo-Kan KI, Dong Hyeon LEE, Jeong In LEE
  • Publication number: 20210034121
    Abstract: A panel bottom sheet includes: a first heat dissipation layer; a second heat dissipation layer having circumferential side surfaces located further inside than circumferential side surfaces of the first heat dissipation layer in a plan view, the second heat dissipation layer including: a main heat dissipation pattern including a first opening formed completely through the second heat dissipation layer in a thickness direction; and a heat dissipation substrate disposed directly on the second heat dissipation layer.
    Type: Application
    Filed: July 8, 2020
    Publication date: February 4, 2021
    Inventors: Kang Woo Lee, Boo Kan Ki, June Hyoung Park, Sun Hee Oh, Dong Hyeon Lee, Jeong In Lee, Hyuk Hwan Kim, Seong Sik Choi
  • Patent number: 10761257
    Abstract: A display device includes a backlight and a display panel on the backlight. The backlight includes a light source to provide a first light, and an optical wavelength converter to receive the first light and emits a second light. The optical wavelength converter includes a light emitting part having a plurality of excitation light emitting bodies to be excited by receiving the first light, and thereby emit the second light, and a light absorbing part including a plurality of absorbers provided on the light emitting part to receive the second light and absorb a portion of the second light having a wavelength of about 550 nm to about 650 nm.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 1, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-woo Lee, Donghoon Kim, Kyung-min Kim, Seunghwan Chung
  • Patent number: 10317609
    Abstract: A display device includes a display panel, a light source and an optical component which receives light from the light source, outputs the provided light toward the display panel, and includes a light guiding film which guides the light toward the display panel, an optical sheet which is coupled to the light guiding film, and the optical sheet includes a base film and optical patterns disposed between the base film and the light guiding film to adjust the traveling direction of the light, and a reinforcing part filled between the base film and the light guiding film corresponding to a periphery of the optical component.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-woo Lee, Sunhee Oh, Yongkyu Kang, Hyunwoo Lee
  • Patent number: 10310162
    Abstract: A display device includes a display panel, a light source, and an optical component including a light guide film and an optical sheet. The optical sheet is coupled to the light guide film to control a path of a light emitted from the light guide film. The optical sheet includes a base film, main optical patterns, and sub-optical patterns. The main optical patterns are disposed between the base film and the light guide film and coupled to the base film and the light guide film. Each of the main optical patterns includes a side surface inclined with respect to the light guide film. The sub-optical patterns are disposed between the base film and the light guide film, coupled to the base film, and spaced apart from the light guide film. Each of the sub-optical patterns has a side surface inclined with respect to the light guide film.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 4, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunwoo Lee, Yongkyu Kang, Sunhee Oh, Kang-woo Lee
  • Patent number: 10295146
    Abstract: A display device includes a display panel and a backlight unit. The display panel receives a light to display an image and has a first radius of curvature. The backlight unit is disposed under the display panel to provide the light to the display panel and has a second radius of curvature. The backlight unit includes a plurality of light sources and a plurality of scattering units. The light sources emit the light and the scattering units scatter at least a portion of the light.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 21, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang-woo Lee, Dawoon Kim, Yu-dong Kim, Hyun-hwa Song, Myeong-ju Shin, Seunghwan Chung
  • Patent number: 10197854
    Abstract: A liquid crystal display device includes a backlight unit and a liquid crystal display panel disposed on the backlight unit, wherein the backlight unit includes a light source unit and a plurality of optical sheets, wherein an optical sheet closest to the liquid crystal display panel among the plurality of optical sheets is a polarizing optical sheet and includes a base film and an optical pattern disposed on a surface of the base film, wherein at least one of the base film and the optical pattern includes an aligned organic fluorescent material.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: February 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunwoo Lee, Donghoon Kim, Kang-woo Lee
  • Patent number: 10078172
    Abstract: A display device includes a display panel and a backlight unit which provides light to the display panel. The backlight unit includes a light source which emits the light, a light guide plate which guides the light emitted from the light source toward the display panel, and a prism plate. The prism plate includes a base film disposed on the light guide plate and a plurality of prisms disposed on the base film. Each of the prisms has an isosceles trapezoidal section, two base angles of which are obtuse angles, when viewed from a cross-sectional view in a width direction.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 18, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang-woo Lee, Youra Kim, Myeong-ju Shin, Seunghwan Chung
  • Patent number: 9974197
    Abstract: Provided is a structure for a display apparatus. The structure for a display apparatus includes: a chassis having a plate shape and provided with a plurality of through holes; a reflection layer formed on one surface of the chassis: and at least one moisture barrier layer formed on the other surface of the chassis.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 15, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Hwa Song, Kang-Woo Lee, Seung Hwan Chung, Young Jun Choi
  • Patent number: 9898650
    Abstract: Provided are a system and a method for tracking a position based on multi sensors. The system according to the present invention includes: a space management server which divides a predetermined space into a predetermined number of spaces to generate a plurality of zones and manages information of each zone; and a zone management server which manages the information of the zone generated by the space management server and provides the space management server with zone session information of an object positioned in each zone and positional information of the corresponding object sensed by a position tracking sensor every time slot.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: February 20, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Ho Suh, Kang Woo Lee, Sang Keun Rhee