Window, display device including the same, and method of manufacturing the window

A method of manufacturing a window, the method comprising:

• preparing a base layer;
• and
• depositing a fluorine-based polymer on the base layer in a vacuum condition to form a protection layer,
• wherein the forming of the protection layer includes irradiating the fluorine-based polymer with an electron beam to remove some fluorine atoms that are bonded to a polymer chain, and subjecting carbon atoms, which are at the position from which the fluorine atoms are removed, to crosslinking between polymer chains with adjacent polymer chains through carbon-carbon bonds to form a fluorine-based crosslinked polymer.

A display device comprising:

• a display module including a first non-folding region, a folding region, and a second non-folding region, which are arranged along a first direction;
• and
• a window disposed on the display module,
• wherein the window includes:
• a base layer;
• and
• a protection layer disposed on the base layer and including a fluorine-based crosslinked polymer,
• wherein the fluorine-based crosslinked polymer includes a first polymer chain, a second polymer chain, and a crosslinking portion that bonds carbon atoms of the first polymer chain to carbon atoms of the second polymer chain.