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.

公开(公告)号：US10519062B2

公开(公告)日：2019-12-31

申请号：US15489848

申请日：2017-04-18

Applicant: UTI INC.

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

IPC: C03C15/00 ,  C03C27/00 ,  C03B33/09 ,  H04N5/225 ,  C03C17/00

Abstract: The present invention relates to a manufacturing method for a camera window and a camera window manufactured thereby. A conventional camera window is configured such that an etching pattern is provided on a back surface of a glass sheet, and a deposition layer is provided on the etching pattern, thereby improving reflectivity, whereby indirect external recognition of the etching pattern is performed, but in the present invention, a distinctive pattern is provided on a front surface of a glass sheet such that direct external recognition of the pattern is possible, whereby it is possible to recognize a distinctive pattern line.

公开(公告)号：US20170297952A1

公开(公告)日：2017-10-19

申请号：US15489848

申请日：2017-04-18

Applicant: UTI INC.

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

IPC: C03C15/00 ,  C03B27/00 ,  C03B33/09 ,  H04N5/225

CPC classification number: C03C15/00 ,  C03C17/002 ,  C03C2218/34 ,  H04N5/2254

Abstract: The present invention relates to a manufacturing method for a camera window and a camera window manufactured thereby. A conventional camera window is configured such that an etching pattern is provided on a back surface of a glass sheet, and a deposition layer is provided on the etching pattern, thereby improving reflectivity, whereby indirect external recognition of the etching pattern is performed, but in the present invention, a distinctive pattern is provided on a front surface of a glass sheet such that direct external recognition of the pattern is possible, whereby it is possible to recognize a distinctive pattern line.

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.

公开(公告)号：US12024462B2

公开(公告)日：2024-07-02

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 ,  C03C21/00 ,  H05K5/00

CPC classification number: C03C15/00 ,  C03C21/002 ,  C03C2218/34 ,  H05K5/0017

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.

公开(公告)号：US11781371B2

公开(公告)日：2023-10-10

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: B32B27/08 ,  G06F1/16 ,  E06B3/28

CPC classification number: E06B3/28 ,  B32B27/08 ,  B32B2255/205 ,  B32B2307/416

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.

公开(公告)号：US11644600B2

公开(公告)日：2023-05-09

申请号：US17580533

申请日：2022-01-20

Applicant: UTI INC.

Inventor： Jae Young Hwang ,  Kukhyun Sunwoo ,  Tea Joo Ha

IPC: G06F3/041 ,  G02B1/14 ,  G02B5/30 ,  G09F9/30 ,  G06F1/16

CPC classification number: G02B1/14 ,  G02B5/3083 ,  G06F1/1616 ,  G06F1/1641 ,  G09F9/301

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.

公开(公告)号：US11643361B2

公开(公告)日：2023-05-09

申请号：US16726499

申请日：2019-12-24

Applicant: UTI INC.

Inventor： Deok Young Park ,  Jae Young Hwang ,  Hak Chul Kim ,  Hack Seon Kim ,  Tea Joo Ha

IPC: C03C21/00 ,  G02B5/28 ,  C03C17/34

CPC classification number: C03C21/002 ,  C03C17/3417 ,  G02B5/282 ,  C03C2217/70

Abstract: The present invention provides a method of increasing the strength of a glass substrate for optical filters and a tempered-glass optical filter using a tempered glass substrate manufactured using the same, in which the glass substrate for optical filters is subjected to chemical tempering so that a compressive stress (CS) and a depth of layer (DOL) of the glass substrate are adjusted to increase the bending strength thereof.

公开(公告)号：US11079524B2

公开(公告)日：2021-08-03

申请号：US16357974

申请日：2019-03-19

Applicant: UTI INC.

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

IPC: G02B5/20 ,  G02B5/28 ,  G02B5/22

Abstract: Disclosed is a near-infrared filter. The near-infrared filter includes a filter-support-seat body including a quadrangular pillar cell region and a dummy region which surrounds the cell region and which is gradually reduced in size from the cell region, and an optical-filter-subdivision layer covering the cell region and the dummy region at a front side and a rear side of the filter-support-seat body based on the path of a light beam which is incident on the front side and penetrates the rear side in the filter-support-seat body. The dummy region has a chamfered side that is slanted obliquely in at least one side of the front side and the rear side of the filter-support-seat body. Further, a method of manufacturing the near-infrared filter is disclosed for each process step.

公开(公告)号：US20200342789A1

公开(公告)日：2020-10-29

申请号：US16856078

申请日：2020-04-23

Applicant: UTI INC.

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

IPC: G09F9/30

Abstract: A cover window is proposed. Particularly, a flexible cover window having improved visibility for a flexible display is proposed, 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.