Display apparatus and operation method thereof
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsShunpei YAMAZAKI, Naoto KUSUMOTO, Kensuke YOSHIZUMI
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Abstract
A foldable display apparatus with excellent portability is provided. The display apparatus includes a flexible display panel, which can be folded in a small size. The display apparatus has a tri-fold mechanism, in which a region folded with a first surface itself of the display apparatus facing each other and a region folded with a second surface opposite to the first surface itself facing each other can be formed. Thus, even a display panel which has a relatively high aspect ratio can be folded in a small size by provision of a folding crease in the short-axis direction, so that portability can be improved.
Claims15
A display apparatus comprising a display panel having flexibility,
- wherein the display panel comprises a first region, a second region, and a third region,
- wherein the first region, the second region, and the third region are in parallel with one another to form a plane when the display apparatus is opened flat,
- wherein the second region is between the first region and the third region,
- wherein the display apparatus is capable of forming a first curved surface with a convex shape on a display surface side across the first region and the second region,
- wherein the display apparatus is capable of forming a second curved surface with a concave shape on the display surface side across the second region and the third region, and
- wherein a radius of curvature R1 of the first curved surface is larger than a radius of curvature R2 of the second curved surface when the display apparatus is folded.
(canceled)
A display apparatus comprising a display panel having flexibility,
- wherein the display panel comprises a first region, a second region, and a third region,
- wherein the first region, the second region, and the third region are in parallel with one another to form a plane when the display apparatus is opened flat,
- wherein the second region is between the first region and the third region,
- wherein the display apparatus is capable of successively forming a first curved surface with a convex shape on a display surface side, a plane surface, and a third curved surface with a convex shape on the display surface side in this order across the first region and the second region,
- wherein the display apparatus is capable of forming a second curved surface with a concave shape on the display surface side across the second region and the third region, and
- wherein when the display apparatus is folded, a radius of curvature R1 of the first curved surface is larger than a radius of curvature R2 of the second curved surface, a radius of curvature R3 of the third curved surface is larger than the radius of curvature R2, and the radius of curvature R1 is substantially equal to the radius of curvature R3.
Dependencies are inferred from the claim text.