公开(公告)号：US20240317630A1

公开(公告)日：2024-09-26

申请号：US18443813

申请日：2024-02-16

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Xiaoju Guo ,  Ellen Anne King ,  Lisa Ann Lamberson ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese ,  Jingshi Wu

IPC: C03C3/087 ,  C03C3/091 ,  C03C3/095 ,  G02F1/1333

CPC classification number: C03C3/087 ,  C03C3/091 ,  C03C3/095 ,  G02F1/133302 ,  G02F2202/09

Abstract: Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.

公开(公告)号：US20210269354A1

公开(公告)日：2021-09-02

申请号：US17254237

申请日：2019-06-10

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Xiaoju Guo ,  Ellen Anne King ,  Lisa Ann Lamberson ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese ,  Jingshi Wu

IPC: C03C3/095 ,  C03C3/087 ,  C03C3/091

Abstract: Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.

公开(公告)号：US20240158292A1

公开(公告)日：2024-05-16

申请号：US18284314

申请日：2022-03-29

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Attila Lang de Falussy

IPC: C03C17/02 ,  C03C11/00 ,  C03C15/00

CPC classification number: C03C17/02 ,  C03C11/005 ,  C03C15/00 ,  C03C2217/452 ,  C03C2218/33

Abstract: A laminated glass article having a glass core and at least one glass cladding fused to the glass core, the cladding having a porous region at an outer surface thereof. The laminated glass article has a transmittance across an entire spectrum from 875 nm to about 2000 nm that is greater than or equal to 97%, and that has a reflectance across an entire spectrum from 875 nm to 2000 nm that is less than or equal to 3.0%. A method for forming a laminated glass article includes obtaining a laminated glass article have a glass core and a cladding, and heating the laminated glass article to form a phase-separated cladding having an interconnected matrix with discrete dispersed regions. The phase-separated cladding layer is etched to remove the discrete dispersed regions, thereby forming a porous region at a surface of the phase-separated cladding.

公开(公告)号：US11420897B2

公开(公告)日：2022-08-23

申请号：US17254237

申请日：2019-06-10

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Xiaoju Guo ,  Ellen Anne King ,  Lisa Ann Lamberson ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese ,  Jingshi Wu

IPC: C03C3/095 ,  C03C3/087 ,  C03C3/091 ,  C03C3/093 ,  G02F1/1333

Abstract: Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.

公开(公告)号：US20210405278A1

公开(公告)日：2021-12-30

申请号：US17363655

申请日：2021-06-30

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Roni Daniel Levi ,  Christian Alexander Rothenbach Stacey ,  Andrew Joseph Sullivan ,  James Andrew West

IPC: F21V8/00

Abstract: A transparent illumination system and related light guide plate is provided. The system is configured to facilitate total internal reflection propagation of light through the light guide plate despite low index of refraction differences between the glass material of the light guide layer and the adjacent layer. The system includes a light source, such as a laser diode, and an optical element to fan out light from the light source in the plane of the light guide plate. The light guide plate includes internal light extraction features.

公开(公告)号：US20240368022A1

公开(公告)日：2024-11-07

申请号：US18687011

申请日：2022-08-16

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Ling Cai ,  Jesse Kohl ,  Mark Owen Weller

IPC: C03C3/091 ,  B32B17/06 ,  C03B17/06 ,  C03C15/00

Abstract: A glass composition includes from 50 mol % to 80 mol % SiO2; from 5 mol % to 15 mol % Al2O3; from 10 mol % to 25 mol % B2O3; greater than or equal to 0 mol % Li2O; greater than or equal to 0 mol % Na2O; greater than or equal to 0 mol % K2O; greater than or equal to 0 mol % Rb2O; greater than or equal to 0 mol % Cs2O; from 1.5 mol % to 5 mol % MgO; from 4 mol % to 12 mol % CaO; and from 0.5 mol % to 5 mol % SrO. R2O is from 0.1 mol % to 15 mol %, R2O being the sum of Li2O, Na2O, K2O, Rb2O, and Cs2O.

公开(公告)号：US12072529B2

公开(公告)日：2024-08-27

申请号：US17779395

申请日：2020-11-20

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Ming-Jun Li ,  William James Miller

IPC: G02B6/136 ,  C03C17/02 ,  G02B6/122 ,  G02B6/12

CPC classification number: G02B6/136 ,  C03C17/02 ,  G02B6/1223 ,  G02B2006/12038

Abstract: A process for forming glass planar waveguide structure includes producing or obtaining a fusion drawn glass laminate (10) comprising a core glass layer (10) and a first clad glass layer (14) and a second clad glass layer (16) then removing or thinning portions of at least the second glass clad layer (16) leaving remaining or thicker portions of the second glass clad layer (16), the remaining or thicker portions corresponding to a planar waveguide pattern and resulting in a glass planar waveguide structure.

公开(公告)号：US20210387442A1

公开(公告)日：2021-12-16

申请号：US17292157

申请日：2019-11-01

Applicant: CORNING INCORPORATED

Inventor： Heather Debra Boek ,  Venkatesh Botu ,  Timothy Michael Gross ,  Balamurugan Meenakshi Sundaram ,  Adama Tandia ,  Lisa Anne Tietz Moore ,  Kochuparambil Deenamma Vargheese ,  Mark Owen Weller

IPC: B32B17/06 ,  C03C21/00 ,  B32B7/022 ,  C03C3/097 ,  C03C3/091 ,  C03C3/093 ,  C03C3/087 ,  C03C4/18

Abstract: A laminate glass article is provided that includes: a core glass layer comprising a first coefficient of thermal expansion (CTE); and a plurality of clad glass layers, each comprising a first primary surface, a second primary surface in contact with the core glass layer and a second CTE that is lower than the first CTE of the core glass layer. The difference in the first and second CTE is about 10×10−7/#C to about 70×10−7/#C. Further, each of the core glass layer and the clad glass layers comprises a viscosity from 109.0 to 1014.0 Poise from about 550#C to about 700#C.

公开(公告)号：US11644609B2

公开(公告)日：2023-05-09

申请号：US17363655

申请日：2021-06-30

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Roni Daniel Levi ,  Christian Alexander Rothenbach Stacey ,  Andrew Joseph Sullivan ,  James Andrew West

IPC: F21V8/00

CPC classification number: G02B6/0041 ,  G02B6/003 ,  G02B6/0051

Abstract: A transparent illumination system and related light guide plate is provided. The system is configured to facilitate total internal reflection propagation of light through the light guide plate despite low index of refraction differences between the glass material of the light guide layer and the adjacent layer. The system includes a light source, such as a laser diode, and an optical element to fan out light from the light source in the plane of the light guide plate. The light guide plate includes internal light extraction features.

公开(公告)号：US11591255B2

公开(公告)日：2023-02-28

申请号：US17056593

申请日：2019-05-17

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Matthew John Dejneka ,  Nadja Teresia Lönnroth ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese

IPC: C03C3/091 ,  C03C3/093

Abstract: The embodiments described herein relate to low temperature moldable sheet forming glass compositions and glass articles formed from the same. In various embodiments, the glass composition comprises from about 60 mol. % to about 67 mol. % SiO2, from about 6 mol. % to about 11 mol. % B2O3, from about 4.5 mol. % to about 11 mol. % Li2O, Al2O3, Na2O, and K2O. The glass composition also includes greater than about 2 mol. % RO, where RO are divalent metal oxides, and R2O from about 14 mol. % to about 20 mol. %, where R2O are alkali metal oxides. The glass composition also has a glass transition temperature Tg of less than about 500 C, a softening point of less than about 650 C, and a coefficient of thermal expansion (CTE) of less than about 85×10−7 K−1.