Polyimide film and flexible display panel including the same
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United States of America Patent
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Oct 3, 2023
Grant Date -
Nov 4, 2021
app pub date -
May 3, 2021
filing date -
May 4, 2020
priority date (Note) -
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Abstract
The present invention relates to a polyimide-based film, a window cover film, and a display panel including the same. More specifically, the present invention relates to a polyimide-based film having a difference (ΔI) between the maximum and minimum values of intensity in a thickness direction of 0.6 or less, when an aromatic ring peak of 1610 to 1630 cm−1 was measured by Raman spectroscopy in which an excitation wavelength is 532 nm, a laser spot is 1 to 2 μm, and a thickness direction measurement interval is 1 μm.
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