| abstract |
The present invention relates to a hardening composition and a usage thereof. An example of the hardening composition has superior processability and workability. Also, the hardening composition, when hardened, exhibits superior light extraction efficiency, hardness, heat and shock durability, moisture durability, gas permeability, and adhesiveness. Also, the hardening composition exhibits reliable durability which is stable for along time even under harsh conditions, and which does not become whitened or sticky on a surface. |