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: 20220005889
    Abstract: A display device including: a window; a polarizer disposed on the window and including an opening; a display panel disposed below the polarizer and including a first display area and a second display area that has a pixel density lower than that of the first display area, wherein the second display area overlaps the opening of the polarizer; and an optical controller overlapping the second display area and is disposed on the display panel, wherein the optical controller reduces a transmittance of an optical signal.
    Type: Application
    Filed: May 13, 2021
    Publication date: January 6, 2022
    Inventors: CHUL HO JEONG, HYUN-BEEN HWANG, SEOKWON JANG, YONGCHAN JEON, HIROTSUGU KISHIMOTO
  • Publication number: 20210333934
    Abstract: A flexible display device including a bending area and a plurality of non-bending areas may include a display substrate including a plurality of transistors and a light-emitting element, a sensing film below the display substrate, and a plurality of metal plates below the sensing film, and the metal plates include a soft magnetic material.
    Type: Application
    Filed: December 14, 2020
    Publication date: October 28, 2021
    Inventors: Hirotsugu KISHIMOTO, Cheol Ho CHOI, Hyun Been HWANG, Chul Ho JEONG
  • Publication number: 20210249480
    Abstract: An organic light emitting display device includes a lower electrode, a pressure sensing layer disposed on the lower electrode, an upper electrode disposed on the pressure sensing layer, an organic light emitting structure disposed on the upper electrode, a window disposed on the organic light emitting structure and which is applied with a user pressure, and a haptic structure which generates a haptic signal when the user pressure detected through the lower electrode, the pressure sensing layer, and the upper electrode is greater than a predetermined pressure.
    Type: Application
    Filed: October 22, 2020
    Publication date: August 12, 2021
    Inventors: Hyun-Been HWANG, Yong Chan JEON, Chul Ho JEONG, Cheol Ho CHOI, Hirotsugu KISHIMOTO
  • Patent number: 10793747
    Abstract: A coating composition includes a siloxane oligomer including an epoxy group and acryl group, a cross-linker, a polymerization initiator and a solvent.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Sang Park, Ah-Ram Lee, So-Yeon Han, In-Seo Kee, Chul-Ho Jeong, Tae-Hyeog Jung
  • Publication number: 20200081162
    Abstract: A flexible window providing apparatus is provided. A flexible window includes: a retardation layer; an impact mitigation layer disposed on the retardation layer; and a surface layer disposed on the impact mitigation layer. The retardation layer includes a ?/4 retardation plate.
    Type: Application
    Filed: July 1, 2019
    Publication date: March 12, 2020
    Inventors: Young Sang PARK, Sung Guk AN, Chul Ho JEONG
  • Publication number: 20180354227
    Abstract: A window for a display device includes: a base substrate; and a protective layer provided on the base substrate, wherein the protective layer includes a plurality of sub-layers sequentially stacked, wherein the base substrate and the protective layer include at least one material selected from polyimide, polyethylene naphthalate, polycarbonate, polyurethane, polydimethylenesiloxane, rubber, and polyethylene terephtahlate, wherein the plurality of sub-layers are formed of different materials.
    Type: Application
    Filed: May 4, 2018
    Publication date: December 13, 2018
    Inventors: Young Sang PARK, Ah Young KIM, Sung Guk AN, Ji Hyuk IM, Chul Ho JEONG
  • Patent number: 9994731
    Abstract: A cover window according to an example embodiment of the present invention includes: a base film; and a coating layer positioned on the base film, in which the coating layer is formed through application of a coating solution. The coating solution includes a compound represented by the following Chemical Formula 1. In Chemical Formula 1, R is CH3, R? is an epoxy group, X, Y, and Z are each independently Si, and Y is 85% to 90% based on a total amount of X, Y and Z.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 12, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Sang Park, Ji Hyuk Im, Chul Ho Jeong
  • Publication number: 20180142127
    Abstract: A coating composition includes a siloxane oligomer including an epoxy group and acryl group, a cross-linker, a polymerization initiator and a solvent.
    Type: Application
    Filed: July 12, 2017
    Publication date: May 24, 2018
    Inventors: YOUNG-SANG PARK, AH-RAM LEE, SO-YEON HAN, IN-SEO KEE, CHUL-HO JEONG, TAE-HYEOG JUNG
  • Patent number: 9921346
    Abstract: Optical films for reducing color shift, and organic light-emitting display apparatuses, employing the same include a first lens pattern layer including a plurality of first grooves, and a second lens pattern layer on the first lens pattern layer having the plurality of first grooves. The second lens pattern layer has a plurality of second grooves crossing the plurality of first grooves. The plurality of first and second grooves are each shaped in the form of a stripe.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 20, 2018
    Assignees: Samsung Electronics Co., Ltd., Cheil Industries, Inc.
    Inventors: You-Min Shin, Hyun-Min Kim, Hong-shik Shim, Young Oh, Chul-Ho Jeong, Eun-Young Cho
  • Patent number: 9865844
    Abstract: A display device includes a display panel and a cover window disposed on the display panel. The cover window includes a first window member and a second window member. The first window member includes an impact absorption layer. The second window member includes an optical compensation layer and a film layer disposed on the optical compensation layer. The second window member further includes a coating portion disposed on the film layer or a third functional coating layer disposed on the film layer. The first window member is disposed between the display panel and the second window member, or the second window member is disposed between the display panel and the first window member.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: January 9, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young Sang Park, Ah Young Kim, Chul Ho Jeong
  • Publication number: 20170373281
    Abstract: A display device includes a display panel and a cover window disposed on the display panel. The cover window includes a first window member and a second window member. The first window member includes an impact absorption layer. The second window member includes an optical compensation layer and a film layer disposed on the optical compensation layer. The second window member further includes a coating portion disposed on the film layer or a third functional coating layer disposed on the film layer. The first window member is disposed between the display panel and the second window member, or the second window member is disposed between the display panel and the first window member.
    Type: Application
    Filed: April 6, 2017
    Publication date: December 28, 2017
    Inventors: Young Sang PARK, Ah Young Kim, Chul Ho Jeong
  • Patent number: 9853093
    Abstract: An OLED display includes a first substrate, a first electrode on the first substrate, a pixel defining layer having a first aperture exposing the first electrode, an organic light emitting layer on the first electrode, a second electrode on the organic light emitting layer, a second substrate disposed to face the first substrate, a black matrix disposed on the second substrate and having a second aperture, and a lens disposed to cover at least a part of the second aperture and protruding toward the first substrate.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Shik Shim, Chul Ho Jeong, Jae Ik Lim
  • Publication number: 20170194400
    Abstract: An OLED display includes a first substrate, a first electrode on the first substrate, a pixel defining layer having a first aperture exposing the first electrode, an organic light emitting layer on the first electrode, a second electrode on the organic light emitting layer, a second substrate disposed to face the first substrate, a black matrix disposed on the second substrate and having a second aperture, and a lens dispsoed to cover at least a part of the second aperture and protruding toward the first substrate.
    Type: Application
    Filed: March 22, 2017
    Publication date: July 6, 2017
    Inventors: Hong Shik SHIM, Chul Ho JEONG, Jae Ik LIM
  • Patent number: 9625624
    Abstract: Provided is a color improving film comprising a base layer, a high refractive light diffusion layer including an organic light diffuser on the base layer, a high refractive resin layer on the high refractive light diffusion layer, and a low refractive resin layer in which a lenticular lens pattern is formed on the high refractive resin layer, wherein the organic light diffuser comprises particles coated with a black pigment and non-coated particles, and wherein the lenticular lens pattern is formed on a surface of the low refractive resin layer facing the high refractive resin layer. According to the color improving film, a change in color sensitivity according to an angle of view is small, an external light reflectivity is low, and a light transmittivity and a light diffusibility are substantially improved. Also, the method of preparing the color improving film has excellent processiblity and economic efficiency.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 18, 2017
    Assignees: Samsung Electronics Co., Ltd., Cheil Industries Inc.
    Inventors: Young Oh, Hyun-min Kim, Young-hyun Ju, Seung-man Choi, You-min Shin, Hong-shik Shim, Chul-ho Jeong, Eun-young Cho
  • Patent number: 9627654
    Abstract: An OLED display includes a first substrate, a first electrode on the first substrate, a pixel defining layer having a first aperture exposing the first electrode, an organic light emitting layer on the first electrode, a second electrode on the organic light emitting layer, a second substrate disposed to face the first substrate, a black matrix disposed on the second substrate and having a second aperture, and a lens disposed to cover at least a part of the second aperture and protruding toward the first substrate.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hong Shik Shim, Chul Ho Jeong, Jae Ik Lim
  • Patent number: 9575217
    Abstract: Optical films, and organic light-emitting display devices employing the same, include a high refractive index pattern layer including a lens pattern region and a non-pattern region alternately formed, wherein the lens pattern region includes a plurality of grooves each having a depth larger than a width thereof, and the non-pattern region has no pattern; and a low refractive index pattern layer formed of a material having a refractive index smaller than a refractive index of the high refractive index pattern layer, wherein the low refractive index pattern includes a plurality of filling portions filling the plurality of grooves.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: February 21, 2017
    Assignees: Samsung Electronics Co., Ltd., Cheil Industries, Inc.
    Inventors: Hong-shik Shim, Eun-young Cho, Hyun-min Kim, You-min Shin, Young Oh, Chul-ho Jeong
  • Patent number: 9507060
    Abstract: Optical films, and organic-light-emitting display apparatuses, include a high refractive index pattern layer including a first surface and a second surface facing each other. The first surface includes a pattern having grooves. The grooves each have a curved surface and a depth greater than a width. The high refractive index pattern layer is formed of a material having a refractive index greater than 1. Further included is a low refractive index pattern layer formed of a material having a refractive index smaller than that of the material constituting the high refractive index pattern layer. The low refractive index pattern layer includes a filling material for filling grooves. A tilt angle, ?, of each groove satisfies the following condition, 15°???75°.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 29, 2016
    Assignees: Samsung Electronics Co., Ltd., Corning Precision Materials Co., Ltd., Cheil Industries Inc.
    Inventors: Hong-shik Shim, Eun-young Cho, Hyun-min Kim, You-min Shin, Young Oh, Chul-ho Jeong, Eui-soo Kim
  • Patent number: 9507059
    Abstract: Optical films, and organic light-emitting display apparatuses employing the same, include a high refractive index pattern layer including a first surface and a second surface facing each other, wherein the first surface includes a pattern having a plurality of grooves. The plurality of grooves each have a curved surface and a depth greater than a width thereof. The high refractive index pattern layer is formed of a material having a refractive index greater than 1. The optical films, and the organic light-emitting display apparatuses, further include a low refractive index pattern layer formed of a material having a refractive index smaller than the refractive index of the material constituting the high refractive index pattern layer. The low refractive index pattern layer includes a filling material for filling the plurality of grooves.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 29, 2016
    Assignees: Samsung Electronics Co., Ltd., Corning Precision Materials Co., Ltd., Cheil Industries Inc.
    Inventors: Hong-shik Shim, Eun-young Cho, You-min Shin, Eui-soo Kim, Chul-ho Jeong, Young Oh, Hyun-min Kim
  • Publication number: 20160297996
    Abstract: A cover window according to an example embodiment of the present invention includes: a base film; and a coating layer positioned on the base film, in which the coating layer is formed through application of a coating solution. The coating solution includes a compound represented by the following Chemical Formula 1. In Chemical Formula 1, R is CH3, R? is an epoxy group, X, Y, and Z are each independently Si, and Y is 85% to 90% based on a total amount of X, Y and Z.
    Type: Application
    Filed: November 13, 2015
    Publication date: October 13, 2016
    Inventors: Young Sang Park, Ji Hyuk Im, Chul Ho Jeong
  • Patent number: 9348066
    Abstract: Provided are a color display film and a method for manufacturing the same, and a display apparatus. The color display film includes a base material layer, a high-refractive resin layer on which an optical pattern is formed, and a low-refractive light diffusion layer including a light diffuser in a stacked configuration. The optical pattern is formed in one surface of the high-refractive resin layer facing the low-refractive light diffusion layer. The method of manufacturing a color display film includes forming a high-refractive resin layer by coating a high-refractive transparent resin on one surface of a base material layer and forming an imprinted optical pattern on the coated high-refractive transparent resin, forming a low-refractive light diffusion layer by dispersing a light diffuser into a low-refractive transparent resin, and bonding one surface of the low-refractive light diffusion layer on a surface on which the optical pattern is formed.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: May 24, 2016
    Assignees: Samsung Electronics Co., Ltd., Samsung Corning Precision Materials Co., Ltd., Cheil Industries Inc.
    Inventors: Young Oh, Hyun-min Kim, Young-hyun Ju, Seung-man Choi, You-min Shin, Hong-shik Shim, Chul-ho Jeong, Eun-young Cho