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    METHOD OF MANUFACTURING FLEXIBLE COVER WINDOW
    31.
    发明申请
    METHOD OF MANUFACTURING FLEXIBLE COVER WINDOW 有权

    公开(公告)号：US20210107826A1

    公开(公告)日：2021-04-15

    申请号：US17036164

    申请日：2020-09-29

    Applicant: UTI INC.

    Inventor： Jae Young Hwang ,  Hak Chul Kim ,  Kukhyun Sunwoo ,  Tea Joo Ha ,  Dong Moon Shin ,  Jung Seok Woo

    IPC: C03C15/00 ,  H05K5/03

    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.

    FLEXIBLE COVER WINDOW
    32.
    发明申请
    FLEXIBLE COVER WINDOW 有权

    公开(公告)号：US20210002947A1

    公开(公告)日：2021-01-07

    申请号：US16915392

    申请日：2020-06-29

    Applicant: UTI INC.

    Inventor： Deok Young Park ,  Jae Young Hwang ,  Hak Chul Kim ,  Kukhyun Sunwoo ,  Tea Joo Ha

    IPC: E06B3/28 ,  B32B27/08

    Abstract: Proposed is a flexible cover window for a flexible display, the flexible cover window including: a first window made of glass and provided on an upper part of a first surface of the flexible display; a second window made of glass and provided on an upper part of a second surface of the flexible display; and a folding part provided between the first window and the second window by corresponding to a folding area of the display and filled with a transparent resin material, wherein a transparent resin layer is provided on a total surface of each of the first window and the second window by continuing to the folding part filled with the transparent resin material, and a chamfer part is provided on each of an end part of the first window and an end part of the second window, which are adjacent to the folding part.

    Optical filter and method of manufacturing same
    33.
    发明授权
    Optical filter and method of manufacturing same 有权

    公开(公告)号：US10585220B2

    公开(公告)日：2020-03-10

    申请号：US16128190

    申请日：2018-09-11

    Applicant: UTI, Inc.

    Inventor： Deok Young Park ,  Jae Young Hwang ,  Hak Chul Kim ,  Hyunho Kim ,  Tea Joo Ha ,  JongHwa Lee

    IPC: G02B5/20 ,  C03C17/34 ,  C03C21/00 ,  C03C17/42 ,  C03B33/02

    Abstract: Disclosed is an optical filter and a method of manufacturing the same, the optical filter including a tempered glass substrate and an optical filter formed on upper and lower surfaces of the tempered glass substrate and the method including: forming a sheet-cutting portion on a base glass substrate on a per-cell basis; tempering the base glass substrate such that upper and lower surfaces of the base glass substrate are tempered and a side portion thereof is tempered through the sheet-cutting portion as well; forming an optical filter layer on each of upper and lower surfaces of the base glass substrate; and dividing the base glass substrate into cells where each cell serves as a cell-based optical filter.

    METHOD OF MANUFACTURING FLEXIBLE COVER WINDOW AND FLEXIBLE COVER WINDOW MANUFACTURED USING SAME
    36.
    发明申请
    METHOD OF MANUFACTURING FLEXIBLE COVER WINDOW AND FLEXIBLE COVER WINDOW MANUFACTURED USING SAME 有权

    公开(公告)号：US20240368031A1

    公开(公告)日：2024-11-07

    申请号：US18772914

    申请日：2024-07-15

    Applicant: UTI INC. ,  Corning Incorporated

    Inventor： Deok Young PARK ,  Jae Young HWANG ,  Kukhyun SUNWOO ,  Tea Joo HA

    IPC: C03C21/00 ,  G06F1/16

    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.

    Flexible cover window and method of manufacturing same
    37.
    发明授权
    Flexible cover window and method of manufacturing same 有权

    公开(公告)号：US12043570B2

    公开(公告)日：2024-07-23

    申请号：US17509503

    申请日：2021-10-25

    Applicant: UTI INC.

    Inventor： Kukhyun Sunwoo ,  Tea Joo Ha ,  Jun Su Choi ,  Yoon Jin Choi

    IPC: B32B15/04 ,  B32B17/06 ,  C03C4/18 ,  C03C21/00

    CPC classification number: C03C21/002 ,  C03C4/18 ,  C03C2204/00

    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.

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