Lg Innotek Co., Ltd.

Force4 Corp.

Ho Shin Yoon

Seung Hyok Park

Chang Hee Lee

Choong Youl Kim

Joong In An

Sung Min Kong

Hee Seok Choi

Jun Cho

Hye Min Boo

Sung Kyoung Jung

Joon In An

Provided is a garnet-based phosphor doped with thorium and a light emitting device using the same. In particular, a garnet-based phosphor having superior light characteristics and heat stability by using thorium as an activator, when compared to a conventional garnet phosphor using cerium as an activator, and a light emitting device using the same as a light source are provided.

Garnet-based phosphor doped with thorium and light emitting device using the same

A phosphor and a light emitting device containing the phosphor are provided. According to an embodiment, the phosphor is expressed in a chemical formula of LMCN:Awhere L is at least one of an alkaline earth metal, a transition metal, Zn, Cd, Al, Ga, In, Ti, Ge, and Sn; M is at least one of B, Si, P, S, F, Cl, I, and Se; and A is at least one of an alkaline rare earth metal and the transition metal, and where 0&#x3c;x&#x2266;5, 0&#x2266;y&#x2266;5, 1&#x2266;z1&#x2266;10, 1&#x2266;z2&#x2266;10, and 0&#x3c;a&#x2266;1.

Phosphor and light emitting device

Disclosed are a phosphor, a coating phosphor composition, a method for preparing the phosphor, and a light emitting device. A silicate-based phosphor is expressed in a chemical formula of (4-x-y-z)SrO.xBaO.zCaO.aMgO.2(SiO).bMO:yEu, wherein M is at least one of Y, Ce, La, Nd, Gd, Tb, Yb or Lu, in which 0&#x3c;x&#x2266;3.95, 0&#x3c;y&#x2266;1, 0&#x2266;z&#x3c;3.95, x+y+z&#x3c;4, 0&#x3c;a&#x3c;2, and 0&#x3c;b&#x3c;1.

Phosphor material, coating phosphor composition, and light emitting device

Growing community of inventors

Gwangju, South Korea

Ho Shin Yoon