Corning Incorporated

Ananthanarayanan Subramanian

Jaymin Amin

Kevin Barry Reiman

Jonathan David Pesansky

Joshua Michael Jacobs

Charlene Marie Smith

Shandon Dee Hart

Karl William Koch, Iii

Ljerka Ukrainczyk

James Joseph Price

Carlo Anthony Kosik Williams

Jason Thomas Harris

Lin Lin

Dong-gun Moon

Chang-gyu Kim

Tingge Xu

Jeonghong Oh

James Edward Morrison, Jr

Santona Pal

Benedict Osobomen Egboiyi

Huan-Hung Sheng

Nagaraja Shashidhar

Michael Lesley Sorensen

Sumalee Likitvanichkul

Ming-Huang Huang

Jacob Immerman

Satish Chandra Chaparala

Hongmei Hu

Jennifer Lynn Hunt

Chih Yuan Lu

Li Yao

Kurt Edward Gerber

Patrick Ryan Pruden

Kristen Lorraine Eckart

Sean Michael Buono

Chu Yu Yeh

A transparent article is described herein that includes: a glass-ceramic substrate comprising first and second primary surfaces opposing one another and a crystallinity of at least 40% by weight; and an optical film structure disposed on the first primary surface. The optical film structure comprises a plurality of alternating high refractive index (RI) and low RI layers and a scratch-resistant layer. The article also exhibits an average photopic transmittance of greater than 80% and a maximum hardness of greater than 10 GPa, as measured by a Berkovich Hardness Test over an indentation depth range from about 100 nm to about 500 nm. The glass-ceramic substrate comprises an elastic modulus of greater than 85 GPa and a fracture toughness of greater than 0.8 MPa·√m. Further, the optical film structure exhibits a residual compressive stress of ≥700 MPa and an elastic modulus of ≥140 GPa.

Transparent glass-ceramic articles with retained strength and display devices with the same

Glass-ceramic articles having specified elastic modulus and fracture toughness

Disclosed are device display screen protectors comprising a first strengthened substrate sized to cover a display screen of an electronic device, the first strengthened substrate having a central tension value in the range greater than 0 MPa and less than 20 MPa, a surface having a Knoop lateral cracking scratch threshold of at least 3 N.

Display screen protector

A multi-layer and method of making the same are provided. The multi-layer, such as a sensor, can include a high strength glass overlay and a lamination layer on a substrate layer. The overlay can be less than 250 micrometers thick and have at least one tempered surface incorporating a surface compression layer of at least 5 micrometers deep and a surface compressive stress of at least 200 MPa. The overlay can exhibit a puncture factor of at least 3000 N/&#x3bc;mat B10 (10percentile of the probability distribution of failure) in a multi-layer structure, an apparent thickness of less than 0.014 mm, and a pencil hardness greater than 6H. The method can include ion-exchange tempering at least one major surface of a glass sheet, light etching the major surface to remove flaws and laminating the glass sheet on the tempered and lightly etched major surface to a substrate layer.

Multi-layer structure and method of making same

A test apparatus comprises a probe movably mounted relative to a carrier. The probe comprises an end portion with a surface area of about 5 mmor less. The test apparatus can be used in methods of determining a crush strength of an edge of a substrate. Methods can comprise aligning the probe with a test location of the substrate at a predetermined angle relative to a probe axis. Methods can further comprise applying a mechanical force to the test location with the probe in the direction of the probe axis. Also, methods can comprise increasing the mechanical force applied by the probe until the substrate cracks or a predefined force applied by the probe is reached. Based on the mechanical force applied by the probe, a crush strength of an edge can be determined.

Methods and apparatus for determining a crush strength of an edge

A screen protector comprises a glass-based substrate and an adhesive. The glass-based substrate comprises a first major surface, a second major surface, a thickness, and an edge. The first major surface comprises a first planar portion and a peripheral portion extending outwardly from the first planar portion. The second major surface comprises a second planar portion opposite the first planar portion and is parallel to the first planar portion. The edge comprises an outer peripheral surface that intersects the peripheral portion of the first major surface. The adhesive comprises a first major surface, a second major surface, a thickness, and an edge. The first major surface of the adhesive is adhered to the second major surface of the glass-based substrate.

Screen protector comprising a glass-based substrate and an adhesive

Described herein are various antimicrobial soda lime glass articles that have improved resistance to discoloration when exposed to harsh conditions, including manufacturing conditions. The improved antimicrobial glass articles described herein generally include a SLG substrate that has a thickness, t; a compressive stress layer of about 0.15*t or greater; and an antimicrobial agent-containing region having an antimicrobial agent and a thickness less than the thickness of the compressive stress layer. Roughly 2 to 20 microns of the primary surfaces of the glass substrate can be removed prior to development of the compressive stress and antimicrobial agent-containing region. In some aspects, prior-annealed and tempered, or prior-annealed, SLG is employed as the substrate. In some aspects, the substrate includes tin at one surface. The improved SLG substrates experience substantially no discoloration when exposed to harsh conditions. Methods of making and using the glass articles are also described.

Tempered and colorless antimicrobial soda lime glass and methods of making and using same

Growing community of inventors

Corning, NY, United States of America

Ananthanarayanan Subramanian