CPC G09F 9/301 (2013.01) [G02B 1/14 (2015.01); G06F 1/1652 (2013.01); H05K 5/03 (2013.01); H10K 50/844 (2023.02); H10K 59/40 (2023.02)] | 20 Claims |
1. A cover window comprising:
glass comprising a folding portion of a folding area, a planar portion, and a boundary portion between the folding portion and the planar portion, the boundary portion having a thickness which gradually becomes greater than a thickness of the folding portion as farther from the folding portion and having inclination with respect to the planar portion; and
a filler disposed on a first surface of the glass,
wherein the inclination is an acute angle defined when a virtual line which is parallel to the planar portion and meets the folding portion meets the boundary portion, and is less than 1°, and
wherein a difference between a refractive index of the filler and a refractive index of the glass is within about 0.07.
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