Sample geometries beyond the preferred geometry may require consultation by Corning on span selection.Ībrasion with 90 grit Silicon Carbide 5psi, 5 seconds, ¼" mask retained strength measured through Ring on Ring, ½" load ring, 1" support ring. Breaking stress is reported based on ASTM C158. The preferred sample geometry is 44mm圆0mm. Perform horizontal bending testing using 18mm loading spans, and 36mm support spans applying a nominal crosshead rate of 5mm/min. Make all measurements on bare glass with no coatings, films, or other types of surface treatments applied.Ĭonduct all tests in a controlled environment (23☒º C, 50±5% RH). The recommended optical transmission as measured through 1.0 mm thick cover glass is >91% nominal transmission across the 390-760 nm (visible) wavelength spectrum, with variation not to exceed ☑%.High-Quality Viewing Experience Guidelines: The coefficient of thermal expansion (CTE) should be 80±4 x 10⁻⁷ per ✬.High-Quality Touch Experience Guidelines: The Knoop scratch load to lateral cracks should be ≥ 4 N. The indentation threshold as measured with a Vickers indenter should be ≥ 5 kgf. Holes and/or slots are not recommended on cover glass used for integrated touch applications due to compromises in edge strength. Refer to the figure for the machined cover glass part for general design guidance on machined cover glass parts. 1.0 mm: Average load-to-failure = 29 kgf.0.7 mm: Average load-to-failure = 20 kgf.0.55 mm: Average load-to-failure = 13 kgf.1.0 mm: Average peak stress = 620 MPa B10 > 500MPa.0.7 mm: Average peak stress = 620 MPa, B10 > 500MPa.0.55 mm: Average peak stress = 600 MPa, B10 > 450MPa.1.0 mm: ≥ 550 MPa CS and > 55 microns DOL.0.7 mm: ≥ 550 MPa CS and > 37microns DOL.0.55 mm: ≥ 500 MPa CS and > 25 microns DOL.Frangible behavior is when the glass breaks into a large number of small pieces when hit with sufficient force: In all cases, glasses should exhibit non-frangible behavior. The cover glass should be chemically-strengthened with a minimum magnitude and depth of layer (DOL) of the compressive stress (CS) as follows. You should conduct all tests and measurements following the conditions outlined in Cover Glass Test and Measurements. Integrated touch cover glass applications are also known as one-glass solutions (OGS). Integrated touch cover glass applications are glass covers that serve as a protective display cover and as a physical carrier or substrate for the touch sensing layer (ITO, etc.) itself. Optical transmission as measured through 1.0 mm thick cover glass is >91% nominal transmission across the 390-760 nm (visible) wavelength spectrum, with variation not to exceed ☑%.Ĭover glass for integrated touch applications.High-Quality Viewing Experience Recommendations: Water absorption should meet Hydrolytic Resistance Class 2 or better.The coefficient of thermal expansion (CTE) should be 80±4 x 10⁻⁷ per degree C.The Young's Modulus of the glass should be 71.5±5 GPa.High-Quality Touch Experience Recommendations: The Knoop scratch load to lateral cracks should be ≥ 4* N. The indentation threshold as measured with a Vickers indenter should be ≥ 5* kgf. Note Tests conducted using a standard 1mm glass. The following general design guidance should apply to machined cover glass parts: 1.0 mm: Average load-to-failure = 100 kgf.0.7 mm: Average load-to-failure = 55 kgf.0.55 mm: Average load-to-failure = 30 kgf.1.0 mm: ≥ 750 MPa CS and > 45 microns DOLĤ-point bend test performance (edge strength) recommendations:Ībraded ring-on-ring test performance (surface strength) recommendations:.0.7 mm: ≥ 750 MPa CS and > 40 microns DOL.=7”, = Native display resolution or greater The following table lists requirements for touch-related attributes: Attribute Always procure high quality components to ensure best user experience.Lower requirements that complement Windows 10 touch experiences Touch targeting has now been brought to mobile.Desktop is more touch-friendly than ever.Firmware solutions always work, always up to date.No need to maintain separate drivers per form factor.Desktop and mobile use same input platform The following table lists Windows 10 features related to touch. This topic covers guidelines for Touch display components in Windows 10.
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