| CPC G09F 9/301 (2013.01) [H05K 1/028 (2013.01); H10K 50/84 (2023.02); H05K 2201/10128 (2013.01)] | 13 Claims |
|
1. A display device comprising:
a substrate comprising a first flat region and a second flat region spaced apart from each other, and a bendable region between the first flat region and the second flat region;
a display layer on a first surface of the substrate in the first flat region, and configured to display an image;
a first passivation layer on the first surface of the substrate in the bendable region;
a second passivation layer on a second surface of the substrate, the second passivation layer defining cavities spaced apart from each other in the bendable region; and
support members on the second surface of the substrate in the first flat region and the second flat region,
wherein a first density of first cavities of the cavities corresponding to a first area in, and at a center area of, the bendable region is less than an average density of the cavities, and is less than a density of second cavities of the cavities corresponding to an edge of the bendable region,
wherein a bending stress of the substrate corresponding to the first area is greater than a concurrent average bending stress of the substrate in the bendable region,
wherein a depth of the second cavities is greater than a depth of the first cavities,
wherein the bendable region comprises a first adjacent region that is adjacent to the first flat region, a second adjacent region that is adjacent to the second flat region, and an intermediate region between the first adjacent region and the second adjacent region, and
wherein a first thickness of the first passivation layer at the first adjacent region is greater than a second thickness of the first passivation layer at the intermediate region.
|