Patents Assigned to UTI, Inc.
  • Patent number: 12146067
    Abstract: Proposed are a coating resin composition for a flexible cover window and a flexible cover window formed using the same composition. The coating resin composition, includes, relative to the total weight thereof, 10 to 150 parts by weight of a urethane (meth)acrylate-based oligomer prepared by synthesizing an acrylic monomer containing a hydroxyl group with a urethane prepolymer synthesized from an ether-based polyol, diisocyanate, and polyoxyalkylene-based bisphenol ether, 1 to 60 parts by weight of a first photocurable acrylate-based monomer, 0.5 to 10 parts by weight of a second photocurable acrylate-based monomer, 0.5 to 10 parts by weight of an alkoxy silane coupling agent, 0.1 to 5 parts by weight of a siloxane additive, and to 20 parts by weight of a photopolymerization initiator.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: November 19, 2024
    Assignee: UTI INC.
    Inventors: Kukhyun Sunwoo, Hak Chul Kim, Tea Joo Ha, Jae Suk Oh, Jung Cheol Noh
  • Publication number: 20240368031
    Abstract: Proposed is a flexible cover window manufacturing method capable of simultaneously reinforcing a plane part and a folding part by using alkali-based metal ions having an ionic radius smaller than that of alkali-based metal ions contained in a glass. A flexible cover window manufactured using the same method is also proposed. The plane part and the folding part are simultaneously reinforced using alkali-based metal ions having a smaller ionic radius than alkali-based metal ions included in a glass to simplify the process, and the flexible cover window ensures strength and folding characteristics by controlling tensile stress of the entire part of the flexible cover window.
    Type: Application
    Filed: July 15, 2024
    Publication date: November 7, 2024
    Applicants: UTI INC., Corning Incorporated
    Inventors: Deok Young PARK, Jae Young HWANG, Kukhyun SUNWOO, Tea Joo HA
  • Patent number: 12043570
    Abstract: Proposed are a flexible cover window for simultaneously improving strength characteristics and folding characteristics of a glass-based ultra-thin flexible cover window, and a method of manufacturing the same. A glass-based flexible cover window is configured such that a ratio of the intensity of replacing metal ions at the glass center to the intensity of replacing metal ions at the glass surface is 1:3 or greater. The present disclosure can provide a flexible cover window with improved window strength characteristics and folding characteristics by adjusting the depth (ion penetration depth) and the surface compressive stress of a tempered layer by performing a gradient tempering process including primary tempering, slimming, and secondary tempering.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: July 23, 2024
    Assignee: UTI Inc.
    Inventors: Kukhyun Sunwoo, Tea Joo Ha, Jun Su Choi, Yoon Jin Choi
  • Patent number: 12044822
    Abstract: A cover window is provided, which is a flexible cover window, the cover window being a glass-based cover window for a flexible display and including: a folding part slimmed by corresponding to a folding area of the display, wherein a thickness (t2) of the cover window is 50 to 300 ?m and a thickness (t1) of the folding part is 20 to 100 ?m. The glass-based cover window has excellent strength and folding properties while maintaining the intrinsic texture of glass.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: July 23, 2024
    Assignee: UTI Inc.
    Inventors: Deok Young Park, Jae Young Hwang, Hak Chul Kim, Kukhyun Sunwoo, Tea Joo Ha
  • Patent number: 12024462
    Abstract: A method of manufacturing a flexible cover window is proposed. The flexible cover window includes a planar part and a folded part extending continuously from the planar part, wherein the folded part is thinner than the planar part. The method includes: forming a photoresist layer on a glass substrate, patterning the photoresist layer to form a gradation resist pattern layer for forming the folded part on the glass substrate, forming the folded part having an inclined portion formed between the folded part and the planar part using the gradation resist pattern layer as a mask, removing the gradation resist pattern layer, and reinforcing the glass substrate.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: July 2, 2024
    Assignee: UTI INC.
    Inventors: Jae Young Hwang, Hak Chul Kim, Kukhyun Sunwoo, Tea Joo Ha, Dong Moon Shin, Jung Seok Woo
  • Publication number: 20240140072
    Abstract: Disclosed is a glass-based flexible cover window with improved strength and surface hardness comprising a planar portion formed so as to correspond to a planar region of a flexible display and a folding portion formed so as to be connected to the planar portion, the folding portion being formed so as to correspond to a folding region of the flexible display, wherein the flexible cover window includes a flat glass substrate or a glass substrate having an embossed or engraved uneven pattern formed thereat, an adhesive buffer layer formed at a front surface of the glass substrate, a protective film layer formed on the adhesive buffer layer, and a hard coating layer formed on the protective film layer, and the adhesive buffer layer and the protective film layer are alternately stacked at least n times (where n is a natural number equal to or greater than 1).
    Type: Application
    Filed: October 23, 2023
    Publication date: May 2, 2024
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Jae Suk OH
  • Patent number: 11957130
    Abstract: Disclosed is an antibacterial flexible cover window formed using an antibacterial coating composition containing antibacterial nanoparticles dispersed in a resin coating solution. In the antibacterial coating composition, 0.001 to 0.5 parts by weight of the antibacterial nanoparticles are dispersed in 100 parts by weight of the resin coating solution. The antibacterial flexible cover window includes an antibacterial layer that is formed by applying the antibacterial coating composition to a glass substrate. Therefore, the antibacterial flexible cover window exhibits a good and long-lasting antibacterial activity.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: April 16, 2024
    Assignee: UTI INC.
    Inventors: Kukhyun Sunwoo, Tea Joo Ha, Jae Suk Oh, Jung Cheol Noh
  • Publication number: 20240067555
    Abstract: Proposed are a method of manufacturing a sapphire cover window, which includes: preparing a sapphire wafer; forming a cell edge processing portion on the sapphire wafer with a laser beam; forming an etched portion on the sapphire wafer by selectively performing wet etching on the cell edge processing portion; and separating a cell from the sapphire wafer by compressing the sapphire wafer on which the etched portion are formed, and a sapphire cover window manufactured thereby.
    Type: Application
    Filed: August 3, 2023
    Publication date: February 29, 2024
    Applicant: UTI INC.
    Inventors: Jae Young HWANG, Hak Chul KIM, Hyunho KIM, Yong Bae NA
  • Publication number: 20240067561
    Abstract: Proposed is a method of manufacturing a flexible cover window containing a flat portion disposed on a flat area of a flexible display and a folding portion formed in connection to the flat portion and disposed on a folding area of the flexible display. The method is characterized by including: preparing a glass substrate; placing the glass substrate onto a carrier substrate; forming a first coating layer on the glass substrate containing the folding portion; forming a second coating layer on the first coating layer; and separating the glass substrate from the carrier substrate.
    Type: Application
    Filed: August 21, 2023
    Publication date: February 29, 2024
    Applicant: UTI INC.
    Inventors: Jae Suk OH, Seok Pil JIN, Kukhyun SUNWOO
  • Publication number: 20230303431
    Abstract: A method of manufacturing a reinforced cover window and a reinforced cover window manufactured thereby are proposed. The method includes a first step of forming a TPI layer on a base substrate, a second step of separating the TPI layer from the base substrate, a third step of forming an adhesive buffer layer on a glass substrate, and a fourth step of stacking the TPI layer on the adhesive buffer layer. This secures the TPI's unique pencil hardness of 4H to 6H while maintaining the unique aesthetic sense and touch feeling of the glass.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 28, 2023
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Hak Chul KIM, Hee Jun AHN, Joo Seok LEE, Min Gyou SEO
  • Publication number: 20230269896
    Abstract: Proposed are a hybrid flexible cover window and a method of manufacturing the same. The hybrid flexible cover window includes a flat portion formed on a flat area of a flexible display and a folding portion which is formed in succession to the flat portion and formed in a folding area of the flexible display. The hybrid flexible cover window includes a substrate, a transparent polyimide layer formed on the glass substrate, and an adhesive buffer layer formed between the glass substrate and the TPI layer, in which the TPI layer has a UV cut-off wavelength of less than 380 nm.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 24, 2023
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Hee Jun AHN, Seok Pil JIN, Jae Suk OH, Joo Seok LEE
  • Publication number: 20230044519
    Abstract: Disclosed is a glass-based flexible cover window with improved strength including a planar portion formed so as to correspond to a planar region of a flexible display and a folding portion formed so as to be connected to the planar portion, the folding portion being formed so as to correspond to a folding region of the flexible display, wherein the flexible cover window includes a glass substrate and a polyimide (PI) coating layer formed on the glass substrate. The PI coating layer is formed on the glass substrate by direct coating, whereby inherent texture of glass is maintained while the overall thickness of the flexible cover window is reduced, and therefore aesthetics of the flexible cover window are improved.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 9, 2023
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Jae Suk OH
  • Publication number: 20230045063
    Abstract: Disclosed is a glass-based flexible cover window with improved strength including a planar portion formed so as to correspond to a planar region of a flexible display and a folding portion formed so as to be connected to the planar portion, the folding portion being formed so as to correspond to a folding region of the flexible display, wherein the flexible cover window includes a glass substrate, an adhesive buffer layer formed on the glass substrate, a protective film layer formed on the adhesive buffer layer, and a hard coating layer formed on the protective film layer. The protective film layer is formed on the glass substrate, whereby strength and folding characteristics of the flexible cover window are improved, and inherent texture of glass is maintained while the overall thickness of the flexible cover window is reduced, and therefore aesthetics of the flexible cover window are improved.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 9, 2023
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Jae Suk OH
  • Publication number: 20220263043
    Abstract: Disclosed are a rollable, slidable, and stretchable cover window and a method of manufacturing the same. The rollable, slidable, and stretchable cover window includes a planar portion formed so as to correspond to a planar region of a rollable, slidable, and stretchable display and a flexible portion formed so as to be connected to the planar portion, the flexible portion being formed so as to correspond to a flexible region of the rollable, slidable, and stretchable display, wherein the rollable, slidable, and stretchable cover window includes a glass substrate and a shock compensation pattern unit formed on the glass substrate, and the shock compensation pattern unit is formed at the flexible portion or is formed at each of the planar portion and the flexible portion, the shock compensation pattern unit having concave-convex-shaped patterns.
    Type: Application
    Filed: March 23, 2021
    Publication date: August 18, 2022
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Jong In PARK
  • Publication number: 20220236457
    Abstract: Proposed is a flexible cover window including a window substrate and an elastic buffer layer having a single-layer structure or a multi-layer structure. The elastic buffer layer is provided on the rear surface of the window substrate to absorb deformation occurring in a folding part. The flexible cover window is a glass-based cover window for protecting a flexible display that is foldable, rollable, slidable, or stretchable. In addition, the flexible cover window has an elastic buffer layer on the rear surface of the window substrate to reduce the difference in elongation between the window substrate and a display panel so that delamination or buckling due to micro-deformation at the folding part thereof can be prevented. Therefore, the life span of the flexible cover window is prolonged and distortion of an image on the screen at the folding part can be prevented.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 28, 2022
    Applicant: UTI INC.
    Inventors: Jae Young HWANG, Kukhyun SUNWOO, Tea Joo HA
  • Publication number: 20220194848
    Abstract: Proposed is a flexible cover window manufacturing method capable of simultaneously reinforcing a plane part and a folding part by using alkali-based metal ions having an ionic radius smaller than that of alkali-based metal ions contained in a glass. A flexible cover window manufactured using the same method is also proposed. The plane part and the folding part are simultaneously reinforced using alkali-based metal ions having a smaller ionic radius than alkali-based metal ions included in a glass to simplify the process, and the flexible cover window ensures strength and folding characteristics by controlling tensile stress of the entire part of the flexible cover window.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 23, 2022
    Applicant: UTI INC.
    Inventors: Deok Young Park, Jae Young Hwang, Kukhyun Sunwoo, Tea Joo Ha
  • Publication number: 20220195235
    Abstract: Proposed are a coating resin composition for a flexible cover window and a flexible cover window formed using the same composition. The coating resin composition, includes, relative to the total weight thereof, 10 to 150 parts by weight of a urethane (meth)acrylate-based oligomer prepared by synthesizing an acrylic monomer containing a hydroxyl group with a urethane prepolymer synthesized from an ether-based polyol, diisocyanate, and polyoxyalkylene-based bisphenol ether, 1 to 60 parts by weight of a first photocurable acrylate-based monomer, 0.5 to 10 parts by weight of a second photocurable acrylate-based monomer, 0.5 to 10 parts by weight of an alkoxy silane coupling agent, 0.1 to 5 parts by weight of a siloxane additive, and to 20 parts by weight of a photopolymerization initiator.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 23, 2022
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Hak Chul Kim, Tea Joo Ha, Jae Suk Oh, Jung Cheol Noh
  • Publication number: 20220135473
    Abstract: Proposed are a flexible cover window for simultaneously improving strength characteristics and folding characteristics of a glass-based ultra-thin flexible cover window, and a method of manufacturing the same. A glass-based flexible cover window is configured such that a ratio of the intensity of replacing metal ions at the glass center to the intensity of replacing metal ions at the glass surface is 1:3 or greater. The present disclosure can provide a flexible cover window with improved window strength characteristics and folding characteristics by adjusting the depth (ion penetration depth) and the surface compressive stress of a tempered layer by performing a gradient tempering process including primary tempering, slimming, and secondary tempering.
    Type: Application
    Filed: October 25, 2021
    Publication date: May 5, 2022
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Jun Su CHOI, Yoon Jin CHOI
  • Publication number: 20220117105
    Abstract: Disclosed is a method of manufacturing an antibacterial cover window. The method includes a first step of preparing a substrate, a second step of forming a mask pattern on the substrate through a patterning process, a third step of forming an antibacterial layer on the substrate on which the mask pattern is formed, and a fourth step of removing the mask pattern to obtain an antibacterial pattern formed on the substrate. Through the method, it is possible to produce a cover window with antibacterial patterns regularly and uniformly distributed over the entire area thereof. Thus, the cover window has long-lasting excellent antibacterial property over the entire area thereof.
    Type: Application
    Filed: October 4, 2021
    Publication date: April 14, 2022
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Jae Suk OH, Jung Cheol NOH
  • Publication number: 20220079161
    Abstract: Disclosed is an antibacterial flexible cover window formed using an antibacterial coating composition containing antibacterial nanoparticles dispersed in a resin coating solution. In the antibacterial coating composition, 0.001 to 0.5 parts by weight of the antibacterial nanoparticles are dispersed in 100 parts by weight of the resin coating solution. The antibacterial flexible cover window includes an antibacterial layer that is formed by applying the antibacterial coating composition to a glass substrate. Therefore, the antibacterial flexible cover window exhibits a good and long-lasting antibacterial activity.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 17, 2022
    Applicant: UTI INC
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Jae Suk OH, Jung Cheol NOH