Polyamide-based film, method of preparing the same, and cover window and display device comprising the same
AssigneeMicroworks Solutions Co., Ltd.
InventorsHak Soo Lee, Hye Jin Kim, Jin Woo Lee
Life of this patent
Estimating the term…
Abstract
The embodiments relate to a polyamide-based film that is excellent in optical properties and mechanical properties, to a process for preparing the same, and to a cover window and a display device comprising the same. It comprises a polyamide-based polymer and a filler in an amount of 600 ppm or more relative to the weight of the polyamide-based polymer, wherein when the 3D surface roughness thereof is measured, the number of summits per unit area (Sds) is 4,400/mm2 or less.
Claims12
A polyamide-based film, which comprises a polyamide-based polymer and a filler in an amount of 600 ppm or more relative to the weight of the polyamide-based polymer, wherein when the 3D surface roughness thereof is measured, the number of summits per unit area (Sds) measured by the following measurement method is 4,400/mm2 or less:
- [Measurement method]
- CONTOUR GT-X of Bruker is used, the measurement area at one time is set to 166 μm×220 μm, a 20-magnification objective lens is adopted for measurement, and a Gaussian filter is applied after the measurement,
- wherein the number of summits per unit area (Sds) is 1,600 to 3,900/mm2.
Dependencies are inferred from the claim text.