Patents by Inventor Chul Ho Jeong

Chul Ho Jeong 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: 20240237494
    Abstract: A display device includes a display panel and a protection layer disposed on the display panel. The protection layer includes a base layer having a porous structure and a polymer resin that is impregnated into the base layer. The porous structure of the base layer includes a plurality of pores.
    Type: Application
    Filed: November 21, 2023
    Publication date: July 11, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: CHUL HO JEONG, SUNGGUK AN, JANG DOO LEE
  • Publication number: 20240223687
    Abstract: An electronic device includes a display panel including a base layer and a pixel, where the base layer includes a bending region which is bendable about an imaginary bending axis extending in a first direction, and a first non-bending region and a second-bending region which are spaced apart in a second direction from the bending region across the first non-bending region, and where the pixel is on the base layer to overlap the first non-bending region. The electronic device further includes a digitizer in contact with a lower portion of the base layer, a first driver chip connected to the pixel and on a portion of the base layer overlapping the second non-bending region, and a second driver chip connected to the digitizer and on a portion of the base layer overlapping the second non-bending region.
    Type: Application
    Filed: October 19, 2023
    Publication date: July 4, 2024
    Inventors: HYUNJAE NA, SUNGGUK AN, CHUL HO JEONG
  • Publication number: 20240220061
    Abstract: An electronic device includes: a display panel and a digitizer including first and second non-folding parts and a folding part between the first and second non-folding parts. The digitizer includes a base layer, first loop coils on the base layer and each including a first part on the first non-folding part, a second part on the second non-folding part, and a third part on the folding part, second loop coils below the base layer. The third part includes first patterns adjacent to first ends of first group holes, second patterns adjacent to second ends of second group holes, and third patterns connecting the first and second patterns. Each of the first and second patterns has a curvature.
    Type: Application
    Filed: October 1, 2023
    Publication date: July 4, 2024
    Inventors: HIROTSUGU KISHIMOTO, YONG-KWAN KIM, HYUNJAE NA, SEOKWON JANG, CHUL HO JEONG, SUNGGUK AN
  • Publication number: 20240220062
    Abstract: A digitizer includes a base layer including first and second non-folding areas and a folding area disposed between the first and second non-folding areas and foldable with respect to a folding axis extending in a first direction and a plurality of coils disposed on the base layer and including a first coil and a second coil closest to the first coil. Each of the first coil and the second coil includes a coil portion defining an open loop and a line portion extending from the coil portion. The coil portion or the line portion overlaps the folding area, and a distance between the coil portion of the first coil and the coil portion of the second coil or a distance between the line portion of the first coil and the line portion of the second coil, which overlap the folding area, is equal to or greater than about 100 micrometers.
    Type: Application
    Filed: March 13, 2024
    Publication date: July 4, 2024
    Inventors: HIROTSUGU KISHIMOTO, DASOM GU, CHUL HO JEONG
  • Publication number: 20240184332
    Abstract: A digitizer includes a first sensing coil disposed in an active region, a first dummy line disposed in the same layer as the first sensing coil, a second sensing coil disposed below the first sensing coil in the active region, a second dummy line disposed in the same layer as the second sensing coil, a bridge line disposed below the second sensing coil, and a third dummy line disposed in the same layer as the bridge line.
    Type: Application
    Filed: September 18, 2023
    Publication date: June 6, 2024
    Inventors: YONG-KWAN KIM, HIROTSUGU KISHIMOTO, HYUNJAE NA, SEOKWON JANG, CHUL HO JEONG
  • Publication number: 20240160329
    Abstract: An electronic apparatus includes a display panel and a digitizer disposed under the display panel and provided with a plurality of holes defined therethrough to overlap the folding region. The digitizer includes a first base layer, first loop coils including first first coils and second first coils, a second base layer disposed under the first base layer, second loop coils including first second coils and second second coils, and interposed between the first base layer and the second base layer, and bridge patterns. A first first line included in one bridge pattern is connected to a corresponding first first coil, and a second first line included in the bridge pattern is connected to the second first coil which receives a signal the same as a signal of the first first coil.
    Type: Application
    Filed: September 19, 2023
    Publication date: May 16, 2024
    Inventors: HYUNJAE NA, HIROTSUGU KISHIMOTO, YONG-KWAN KIM, SEOKWON JANG, CHUL HO JEONG
  • Publication number: 20240160246
    Abstract: An electronic device includes a display panel including a folding area and first and second non-folding areas spaced apart from each other with the folding area between the first and second non-folding areas, and a digitizer including a first non-folding portion overlapping the first non-folding area, a second non-folding portion overlapping the second non-folding area, and a folding portion overlapping the folding area and including holes. The digitizer includes first loop coils in a first direction and second loop coils in a second direction and insulated from and intersecting with the first loop coils. The second loop coils may include non-folding coils respectively in the first and second non-folding portions and folding coils, at least one of which is in the folding portion. The non-folding coils are driven in a first mode, and the folding coils are driven in a second mode.
    Type: Application
    Filed: November 9, 2023
    Publication date: May 16, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: HYUNJAE NA, HIROTSUGU KISHIMOTO, YONG-KWAN KIM, SUNGGUK AN, SEOKWON JANG, CHUL HO JEONG
  • Publication number: 20240160328
    Abstract: An electronic apparatus includes a display module and a digitizer, the digitizer includes a plurality of engraved patterns in a folding part of a base layer thereof, and liquid metal may be disposed in the plurality of engraved patterns.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 16, 2024
    Inventors: DASOM GU, HIROTSUGU KISHIMOTO, CHUL HO JEONG, SUNGGUK AN
  • Publication number: 20240163355
    Abstract: An electronic device includes: a digitizer disposed under a display panel, where the digitizer includes an upper layer divided into a first non-foldable portion, a second non-foldable portion, and a foldable portion overlapping the foldable area, where a plurality of holes are defined in the foldable portion, and a lower layer including a first plate and a second plate spaced apart from each other along the first direction so as to define a space therebetween in an area overlapping the foldable portion, where the upper layer includes a base layer, first loop coils, second-first loop coils disposed in the first non-foldable portion, and second-second loop coils disposed in the second non-foldable portion, where the lower layer includes a third-first loop coil disposed in the first plate so as to overlap the foldable portion and a third-second loop coil disposed in the second plate so as to overlap the foldable portion.
    Type: Application
    Filed: September 28, 2023
    Publication date: May 16, 2024
    Inventors: SEOKWON JANG, HIROTSUGU KISHIMOTO, YONG-KWAN KIM, HYUNJAE NA, SUNGGUK AN, CHUL HO JEONG
  • Publication number: 20240143097
    Abstract: A display device includes a display panel including a first non-folding area, a second non-folding area, and a folding area that are arranged along a first direction, the folding area being foldable along a folding line extending along a second direction intersecting the first direction, a panel lower member disposed below the display panel, and a digitizer disposed below the panel lower member and including a base layer and sensing coils. The base layer includes a folding portion including holes overlapping the folding area of the display panel and first and second non-folding portions disposed along the first direction. The folding portion is disposed between the first and second non-folding portions. The sensing coils are disposed on the base layer, and the base layer includes a matrix including a filler and an elastomer and weaving-shaped fiber lines disposed inside the matrix and alternately arranged with each other.
    Type: Application
    Filed: August 2, 2023
    Publication date: May 2, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Hirotsugu KISHIMOTO, Yong Kwan KIM, Hyun Jae NA, Seok Won JANG, Sung Guk AN, Chul Ho JEONG
  • Patent number: 11954297
    Abstract: A digitizer includes a base layer including first and second non-folding areas and a folding area disposed between the first and second non-folding areas and foldable with respect to a folding axis extending in a first direction and a plurality of coils disposed on the base layer and including a first coil and a second coil closest to the first coil. Each of the first coil and the second coil includes a coil portion defining an open loop and a line portion extending from the coil portion. The coil portion or the line portion overlaps the folding area, and a distance between the coil portion of the first coil and the coil portion of the second coil or a distance between the line portion of the first coil and the line portion of the second coil, which overlap the folding area, is equal to or greater than about 100 micrometers.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: April 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hirotsugu Kishimoto, Dasom Gu, Chul Ho Jeong
  • Publication number: 20240107696
    Abstract: A window includes a window base layer and a window protecting layer disposed on the window base layer. At least one of the window base layer or the window protecting layer includes a metal-organic framework. The window mitigates deformations and wrinkles caused by folding.
    Type: Application
    Filed: August 11, 2023
    Publication date: March 28, 2024
    Inventors: YOUNGSANG PARK, SUNGGUK AN, JANG DOO LEE, CHUL HO JEONG
  • Patent number: 11899493
    Abstract: An electronic apparatus includes: a display panel including a folding area foldable with respect to a folding axis, a panel protective layer disposed under the display panel, a digitizer disposed under the panel protective layer and including a base layer including a folding portion through which holes are defined, a first non-folding portion, and a second non-folding portion, and sensing coils disposed on the base layer, and an adhesive layer including a first portion attaching the panel protective layer to the first non-folding portion and a second portion spaced apart from the first portion with the folding portion interposed therebetween and attaching the panel protective layer to the second non-folding portion. The base layer includes a matrix portion including a filler and fiber lines arranged in the matrix portion and having a weave pattern.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: February 13, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hirotsugu Kishimoto, Sungguk An, Yongchan Jeon, Chul Ho Jeong
  • Patent number: 11893197
    Abstract: An electronic apparatus includes a display panel including non-folding areas arranged in a first direction and a folding area between the first and second non-folding areas, and a digitizer disposed under the display panel, where the digitizer includes base layers each including non-folding parts and a folding part in which holes are defined, a first group coil including first to fourth sensing coils each having first and second portions overlapping the non-folding parts and a third portion overlapping the folding part and surrounding a portion of each of corresponding holes of the holes, and a second group coil insulated from the first group coil, where two or fewer third portions are disposed in a same layer between holes adjacent to each other in a second direction crossing the first direction among the holes.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: February 6, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yongchan Jeon, Hirotsugu Kishimoto, Chul Ho Jeong
  • Patent number: 11860693
    Abstract: An electronic apparatus includes a display layer including a folding area and non-folding areas, a digitizer disposed under the display layer and including first sensing coils, second sensing coils insulated from the first sensing coils, and data lines connected to the second sensing coils, and a support layer disposed under the digitizer, where openings are defined in a portion of the support layer overlapping the folding area. Each first sensing coil includes a long side extending in the first direction and a short side extending in the second direction, each second sensing coil includes a long side extending in the second direction and a short side extending in the first direction, and a width in the second direction of a portion of the data lines overlapping the folding area is greater than a width in the second direction of a portion of the data lines not overlapping the folding area.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dasom Gu, Hirotsugu Kishimoto, Chul Ho Jeong, Jeongil Yoo, Jang Doo Lee
  • Publication number: 20230400887
    Abstract: A display device includes a display panel having a foldable area, a first support member on a lower surface of the display panel, having a stretchable portion overlapping the foldable area, and including a magnesium alloy including magnesium (“Mg”) and an additive material, and a second support member on a lower surface of the first support member and including a first support plate and a second support plate spaced apart from each other. The content of the magnesium in the magnesium alloy is about 85 wt % to about 97 wt %.
    Type: Application
    Filed: February 21, 2023
    Publication date: December 14, 2023
    Inventors: HIROTSUGU KISHIMOTO, YONGCHAN JEON, CHUL HO JEONG
  • Patent number: 11822757
    Abstract: The present disclosure relates generally to a display device. According to one aspect of the present disclosure, a display device includes: a display panel configured to display an image on its front surface, a digitizer layer disposed on a back surface of the display panel and configured to generate a magnetic field by first electrode patterns and second electrode patterns, and an adhesive layer disposed between the display panel and the digitizer layer and containing SiOCH3CH3—CH2—CH2—SiCH3OCH3OCH3.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: November 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hirotsugu Kishimoto, Da Som Gu, Yong Chan Jeon, Sung Ki Jung, Chul Ho Jeong, Seung Kyun Hong
  • Publication number: 20230297132
    Abstract: A display device includes a folding region, and a non-folding region which is adjacent to the folding region along a first direction, a display module which displays an image, a window on the display module, a lower support plate facing the window with the display module therebetween, the lower support plate including a metal material, and an upper support plate between the display module and the lower support plate. The upper support plate includes a support layer including glass fiber and a polymer material, a first surface including a first concave-convex pattern, and a second surface opposite to the first surface, closer to the display module than the first surface and including a second concave-convex pattern and a metal layer directly on the first surface of the support layer, in the non-folding region.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 21, 2023
    Inventors: HIROTSUGU KISHIMOTO, YONGCHAN JEON, CHUL HO JEONG
  • Publication number: 20230288956
    Abstract: A display device includes a folding area and a non-folding area divided into a first non-folding area and a second non-folding area spaced apart in a first direction with the folding area therebetween. The display device includes a display module, a window on a first surface of the display module, and a support plate on a second surface of the display module. At least one of the window and the support plate includes a folding part corresponding to the folding area and including a plurality of first sub film layers stacked in the first direction, and a non-folding part corresponding to the non-folding area and including second sub film layers stacked in the first direction. A second sub film layer of the second sub film layers has a storage modulus larger than a storage modulus of a first sub film layer of the plurality of first sub film layers.
    Type: Application
    Filed: January 5, 2023
    Publication date: September 14, 2023
    Inventors: HIROTSUGU KISHIMOTO, YONGCHAN JEON, CHUL HO JEONG
  • Publication number: 20230289021
    Abstract: An electronic apparatus includes a display panel including non-folding areas arranged in a first direction and a folding area between the first and second non-folding areas, and a digitizer disposed under the display panel, where the digitizer includes base layers each including non-folding parts and a folding part in which holes are defined, a first group coil including first to fourth sensing coils each having first and second portions overlapping the non-folding parts and a third portion overlapping the folding part and surrounding a portion of each of corresponding holes of the holes, and a second group coil insulated from the first group coil, where two or fewer third portions are disposed in a same layer between holes adjacent to each other in a second direction crossing the first direction among the holes.
    Type: Application
    Filed: January 12, 2023
    Publication date: September 14, 2023
    Inventors: YONGCHAN JEON, HIROTSUGU KISHIMOTO, CHUL HO JEONG