Foldable display device
A foldable display device having an excellent folding characteristic without image quality deterioration on a folding portion is provided. The foldable display device includes a flexible display panel and a cover window positioned outside the flexible display panel and protecting the flexible display panel from an external impact, wherein the cover window includes a folding region where concave grooves are formed.
1. A foldable display device, comprising:
a flexible display panel; and
a cover window overlying the flexible display panel,
said cover window including a folding region operated to be folded or unfolded, positioned to transmit images generated by the flexible display panel where recesses are formed and overlying a display region of the display panel.
2. The foldable display device of claim 1 , comprised of the recesses formed in a stripe pattern, and positioned in alignment with a direction crossing a direction in which the cover window is folded.
3. The foldable display device of claim 2 , comprised of each length of the recesses being the same as a width of the cover window.
4. The foldable display device of claim 1 , comprised of the recesses formed with a dot shape, and positioned according to a first direction in which the cover window is folded and a second direction crossing the first direction.
5. The foldable display device of claim 1 , comprised of
the recesses formed with a bar shape,
the cover window folded according to a first direction, and
each long edge of the recesses positioned according to a second direction crossing the first direction.
6. The foldable display device of claim 1 , comprised of the recesses including first recesses of a bar shape and second recesses of a dot shape.
7. The foldable display device of claim 6 , comprised of the first recesses and the second recesses alternately positioned one by one according to a second direction crossing a first direction in which the cover window is folded.
8. The foldable display device of claim 2 , comprised of each width of the recesses and an interval of the recesses determined in a range of 40 nm to 100 nm.
9. The foldable display device of claim 8 , comprised of each depth of the recesses being less than half of a thickness of the cover window.
10. The foldable display device of claim 1 , comprised of the cover window manufactured of a hard material and a pair of non-folding regions positioned at respective sides of the folding region.
11. The foldable display device of claim 10 , comprised of the cover window being a single layer structure or a multi-layer structure including at least one of an acryl, a polycarbonate, and polyethylene terephthalate.
12. The foldable display device of claim 10 , further comprising:
a supporting member supporting the flexible display panel and the cover window,
the supporting member including a hinge part corresponding to the folding region and a first supporting part and a second supporting part respectively corresponding to a pair of non-folding regions.
13. A foldable display device, comprising:
a flexible display panel; and
a cover window including a folding region operated to be folded or unfolded overlying the flexible display panel to transmit images generated by the flexible display panel where recesses are formed in a stripe pattern and positioned in alignment with a direction crossing a direction in which the cover window is folded.
14. The foldable display device of claim 13 , comprised of each length of the recesses being the same as a width of the cover window.
15. The foldable display device of claim 13 , comprised of each width of the recesses and an interval of the recesses determined in a range of 40 nm to 100 nm.
16. The foldable display device of claim 15 , comprised of each depth of the recesses being less than half of a thickness of the cover window.
17. The foldable display device of claim 13 , comprised of the cover window manufactured of a hard material and a pair of non-folding regions positioned at respective sides of the folding region.
18. The foldable display device of claim 17 , comprised of the cover window being a single layer structure or a multi-layer structure including at least one of an acryl, a polycarbonate, and polyethylene terephthalate.
19. The foldable display device of claim 17 , further comprising:
a supporting member supporting the flexible display panel and the cover window,
the supporting member including a hinge part corresponding to the folding region and a first supporting part and a second supporting part respectively corresponding to a pair of non-folding regions.