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US 2019/0337273 A1Published application
Transparent stack structure
AssigneeDongwoo Fine-Chem Co., Ltd.
InventorsMyung Young AN, Sung Woo YU, Geo San LIM
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Abstract
A transparent stack structure includes a substrate and a hard coating layer stacked on the substrate. Compressive modulus and elastic restoration of the hard coating layer and the substrate satisfy Formula 1. Mechanical strength may be obtained from the substrate, and flexible and elastic properties may be enhanced by the hard coating layer so that cracks may be prevented when being folded or bent.
Claims12
A transparent stack structure, comprising:
- a substrate;
- and
- a hard coating layer stacked on the substrate,
- wherein compressive modulus and elastic restoration of the hard coating layer and the substrate satisfy the following Formula 1:
- EIT
- HC
- EIT
- FILM
- <
- 1
- ≤
- nIT
- HC
- nIT
- FILM
- [
- Formula
-
-
- 1
- ]
- wherein, in the Formula 1, EITHC is a compressive modulus of the hard coating layer, EITFILM is a compressive modulus of the substrate, nITHC is an elastic restoration of the hard coating layer and nITFILM is an elastic restoration of the substrate.
19 more elements
Dependencies are inferred from the claim text.