Lg Chem, Ltd

Youngsuk Kim

Yeongrae Chang

Hye Min Kim

Hee Jung Choi

Soonhwa Jung

Heon Kim

Jaeyoung Kim

A diffraction light guide plate comprising an optical layer having diffraction lattice pattern formed as an integrated structure without an interface on one surface thereof, where the optical layer having diffraction lattice pattern is a continuous phase of polymer comprising an episulfide compound, a thiol compound, and an aromatic cyclic compound having two or more hydroxyl groups, the diffraction light guide plate having excellent thickness uniformity and flatness as well as low haze and excellent visibility, and excellent mechanical properties such as pencil hardness and strength, and a method for manufacturing the diffraction light guide plate.

Diffraction light guide plate and manufacturing method thereof

A curable composition for forming a high refractive index optical material, the curable composition including an episulfide compound, a thiol compound and an aromatic ring compound containing two or more hydroxyl groups, and an optical material including a cured product of the curable composition.

Curable composition and optical material comprising cured product thereof

A curable composition and an optical element including a cured product thereof. The curable composition includes an episulfide compound and an aromatic heterocyclic compound.

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Daejeon, South Korea

Youngsuk Kim