Cheil Industries Inc.

Dong-II Han

Young-Ho Kim

Woo-Han Kim

Hong-Jung Yoo

Dong-Ju Shin

Disclosed are a curable polysiloxane composition for an optical device including at least one kind of a first siloxane compound represented by Chemical Formula 1, at least one kind of a second siloxane compound having hydrogen bound to silicon (Si&#x2014;H) at the terminal end, and at least one kind of a third siloxane compound having an alkenyl group bound to silicon (Si-Vi) at the terminal end, an encapsulating material obtained by curing the curable polysiloxane composition for an optical device, and an optical device including the encapsulating material.(RRRSiO)(RRSiO)(L-O)(L-O)(RRSiO)(L-O-L-O)(RSiO&#x2014;Y&#x2014;SiOR)(RRSi&#x2014;Y)(RSiO)(RSiO)(SiO&#x2014;Y&#x2014;SiO)(SiO)&#x2003;&#x2003;[Chemical Formula 1] In Chemical Formula 1, Rto R, Yto Y, M1, D1 to D7, T1 to T3 and Q1 are the same as defined in the specification.

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Uiwang-si, South Korea

Dong-II Han