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US 9,069,521 B2Granted
Foldable display device
AssigneeSamsung Display Co., Ltd.
InventorsKyu-Taek Lee, Hak-Sun Kim, Akira Hirai, Tae-Hyeog Jung
Life of this patent
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Abstract
A foldable display device includes a flexible display panel and a cover window on an outside of the flexible display panel. The cover window includes a foldable region between plane regions that are on opposite sides of the cover window, and the plane regions have a first hardness and the foldable region has a second hardness that is smaller than the first hardness.
Claims11
A foldable display device, comprising:
- a flexible display panel;
- and
- a cover window on an outside of the flexible display panel, the cover window including a foldable region between plane regions that are on opposite sides of the cover window, the plane regions having a first hardness and the foldable region having a second hardness that is smaller than the first hardness,
- wherein:
- each of the plane regions and the foldable region includes a polymer of poly(methyl methacrylate) (PMMA) and poly(n-butylacrylate) (PnBA), and
- an amout of PnBA in the polymer of PMMA and PnBA in the foldable region is different from an amount of PnBA in the polymer of PMMA and PnBA in the plane regions.
3 more elements
A foldable display device, comprising:
- a flexible display panel;
- and
- a cover window on an outside of the flexible display panel, the cover window including a foldable region between plane regions that are on opposite sides of the cover window, the plane regions having a first hardness and the foldable region having a second hardness that is smaller than the first hardness,
- wherein:
- the foldable region has a first width, and
- the foldable region includes a plurality of rigid units and soft units that are alternately arranged in the foldable region, one of the rigid units and one of the soft units being partitioned with a second width that is smaller than the first width.
3 more elements
Dependencies are inferred from the claim text.