Catalogs >
CORNING >
CORNING LOTUS? XT GLASS

CORNING LOTUS? XT GLASS
4Pages

Catalog excerpts

CORNING LOTUS™ XT GLASS FOR HIGH-PERFORMANCE DISPLAYS The Corning Lotus™ Glass platform is specially formulated for high-temperature processing. By working in close collaboration with its customers, Corning developed a suite of glasses that withstand the demanding processes involved in creating high-performance displays. Corning Lotus™ XT Glass is the newest addition to Corning’s specialty glass platform. It is formulated to perform exceptionally well in low temperature poly-silicon (LTPS) and oxide thin-film transistor (TFT) backplane manufacturing processes. Lotus XT Glass retains its shape and surface quality during customer processing due to its outstanding thermal stability. Lotus XT Glass features best-in-class total pitch variation – up to 75 percent better than the company’s first-generation product, Corning Lotus Glass – supporting higher yields. Corning produces Lotus XT Glass using its patented fusion technology, which provides flat glass with pristine surface quality and excellent thickness control – qualities essential for successful manufacture of LCD and OLED displays. PRODUCT & MATERIAL INFORMATION Corning Lotus XT Glass is produced to the following specifications: PRODUCT SPECIFICATIONS Maximum Size Length / Width Tolerances Thickness Tolerance Thickness Ranges (150mm Moving Window) Radius with a bevel width of 0.1 - 0.6 mm Corner Cuts Orientation Corner(s) 0.1 - 0.15% of the longer substrate edge Corning Lotus™ XT Glass / Product Information Sheet / May 2013

Open the catalog to page 1

VISUAL FAULT LIMITS Pattern Surface Scratch & Stain None visible using 5K lux or 10K lux Back Surface Inclusions Edge Chips 1.5K Limit Sample using 1.5K lux Edge Cracks None visible using 1.5K lux Polypropylene Slotted Cases (=<730 x 920mm) Corning® DensePak® (products larger than 730 x 920mm) Scratch, stain and inclusion fault criteria apply to all except a border area on each substrate which has a width of 10mm. Quality Area Quality Level Sampling Plan Normal Inspection, Single Sampling Inspection Level Quality Assurance Normal Inspection, Level 1 Visual Criteria DIMENSIONAL MEASUREMENT...

Open the catalog to page 2

VISUAL INSPECTION Pattern Surface Back Surface Darkened Clean Room Light Source Halogen (10K lux), Halogen (5K lux) or Fluorescent (1.5K lux) MATERIAL INFORMATION Glass Type Alkaline Earth Boro-Aluminosilicate Forms Available Fusion Drawn Sheet Substrates for High Performance Displays with LTPS and oxideTFT technologies. Principle Uses Density (20°C) Young's Modulus Shear Modulus Vickers Hardness (200g load, 15 sec dwell) Thermal Expansion Poisson's Ratio Mechanical Properties Coefficient of Thermal Expansion (0 - 300°C) Working Point (10 poises) Softening Point (10 Viscosity Annealing...

Open the catalog to page 3

Dispersion Constant Birefringence Constant Optical Properties THERMAL CONDUCTIVITY Thermal Conductivity is a calculated value, and is equal to the product of the Thermal diffusivity multiplied by Specific Heat multiplied by Density of the glass. Temp (°C) Thermal Conductivity (W/cm-K) CHEMICAL DURABILITY Durability is measured via weight loss per surface area after immersion. Values are highly dependent upon actual testing conditions. Unless otherwise noted, concentrations refer to weight percent. Time Corning Lotus™ XT Glass / Product Information Sheet / May 2013

Open the catalog to page 4