Patent ID: 8241731

Claim:
A display panel comprising: a sheet including: first and second sheet surfaces that are spaced apart from each other and define a space therebetween; and a plurality of partitions extending from the first sheet surface to the second sheet surface and dividing the space between the first sheet surface and the second sheet surface into a plurality of cells, wherein the thickness of each partition is in a range of 0.01 to 10 μm, and the sheet further includes a plurality of first walls defined by the first sheet surface and corresponding to the respective cells, the first walls each having a thickness in a range of 0.01 to 10 μm, wherein the partitions and the first walls are formed of same material, and wherein the partitions and the first walls form intersecting areas having a curved surface of 0.1 to 50 μm in a curvature radius.