A phosphor is a phosphor composed by containing Ce.sup.3+ as an emission center in a matrix garnet compound having a garnet structure. Then, in the matrix garnet compound, a part of Ca that composes a crystal of Lu.sub.2CaMg.sub.2(SiO.sub.4).sub.3 is replaced by Mg. Moreover, a light emitting device includes the above-mentioned phosphor. In this way, it is possible to provide a garnet phosphor in which temperature quenching is reduced without largely shifting the light emission peak wavelength from that of a Lu.sub.2CaMg.sub.2(SiO.sub.4).sub.3:Ce.sup.3+ phosphor, and to provide a light emitting device using the garnet phosphor.

A phosphor composition is presented. The phosphor composition includes a solid solution of aluminum nitride and a complex oxide including europium and strontium, where an amount of oxygen in the solid solution is at least 0.4 weight percent and less than 1 weight percent. A lighting apparatus including a phosphor material including the phosphor composition is also provided.

A phosphor composition is presented. The phosphor composition includes a solid solution of aluminum nitride and a complex oxide including europium and strontium, where an amount of oxygen in the solid solution is at least 0.4 weight percent and less than 1 weight percent. A lighting apparatus including a phosphor material including the phosphor composition is also provided.

A display device including a first pixel electrode and a second pixel electrode disposed adjacent to each other on a substrate; a pixel defining layer including a first opening corresponding to the first pixel electrode, a second opening corresponding to the second pixel electrode, and a first convex portion arranged adjacent to the first opening; a first intermediate layer arranged on the first pixel electrode to correspond to the first opening and including a first emission layer; and a first conductive inorganic layer arranged on the first intermediate layer to correspond to the first opening. At least one end of the first conductive inorganic layer extends beyond an end of the first intermediate layer and is disposed on the pixel defining layer between the first opening and the second opening.

A phosphor, combined with LED having not exceeding 470 nm, of high emission intensity and with chemical and thermal stability is provided. The phosphor according to the present invention comprises an inorganic compound in which element A (A is one or two or more kinds of elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb) is solid solved in an inorganic crystal including at least metal element M and non-metal element X and represented by M.sub.nX.sub.n+1 (3n5), an inorganic crystal having the same crystal structure, or an inorganic crystal including a solid solution thereof. Here, M comprises at least Al and Si, and if necessary element L (L is a metal element other than Al and Si) and X comprises N, O if necessary, and element Z if necessary (Z is a non-metal element other than N and O).

The invention provides a lighting device comprising a solid state light source and a ceramic body, wherein the solid state light source is configured to provide blue light source light to the ceramic body, wherein the ceramic body comprises a ceramic material configured to wavelength convert part of the blue light source light into yellow converter light, to provide white lighting device light comprising said blue light source light and said yellow converter light, said white lighting device light having a color point selected from the range of 0.18u0.25 and 0.42v0.54, and wherein the ceramic material comprises a (Y.sub.(1-y-q-z),Gd.sub.y,Lu.sub.q, Ce.sub.z).sub.3(Al.sub.(1-x),Ga.sub.x).sub.5O.sub.12 ceramic material, with 0x0.6, 0y0.5, 0q<1 and 0.001z0.06.

Disclosed herein are green-emitting, garnet-based phosphors having the formula (Lu.sub.1abcY.sub.aTb.sub.bA.sub.c).sub.3(Al.sub.1dB.sub.d).sub.5(O.sub.1eC.sub.e).sub.12:Ce,Eu, where A is selected from the group consisting of Mg, Sr, Ca, and Ba; B is selected from the group consisting of Ga and In; C is selected from the group consisting of F, Cl, and Br; and 0a1; 0b1; 0<c0.5; 0d1; and 0<e0.2. These phosphors are distinguished from anything in the art by nature of their inclusion of both an alkaline earth and a halogen. Their peak emission wavelength may lie between about 500 nm and 540 nm; in one embodiment, the phosphor (Lu,Y,A).sub.3Al.sub.5(O,F,Cl).sub.12:Eu.sup.2+ has an emission at 540 nm. The FWHM of the emission peak lies between 80 nm and 150 nm. The present green garnet phosphors may be combined with a red-emitting, nitride-based phosphor such as CaAlSiN.sub.3 to produce white light.

Disclosed herein are green-emitting, garnet-based phosphors having the formula (Lu.sub.1abcY.sub.aTb.sub.bA.sub.c).sub.3(Al.sub.1dB.sub.d).sub.5(O.sub.1eC.sub.e).sub.12:Ce,Eu, where A is selected from the group consisting of Mg, Sr, Ca, and Ba; B is selected from the group consisting of Ga and In; C is selected from the group consisting of F, Cl, and Br; and 0a1; 0b1; 0<c0.5; 0d1; and 0<e0.2. These phosphors are distinguished from anything in the art by nature of their inclusion of both an alkaline earth and a halogen. Their peak emission wavelength may lie between about 500 nm and 540 nm; in one embodiment, the phosphor (Lu,Y,A).sub.3Al.sub.5(O,F,Cl).sub.12:Eu.sup.2+ has an emission at 540 nm. The FWHM of the emission peak lies between 80 nm and 150 nm. The present green garnet phosphors may be combined with a red-emitting, nitride-based phosphor such as CaAlSiN.sub.3 to produce white light.

A phosphor composition is presented. The phosphor composition includes a solid solution of aluminum nitride and a complex oxide including europium and strontium, where an amount of oxygen in the solid solution is at least 0.4 weight percent and less than 1 weight percent. A lighting apparatus including a phosphor material including the phosphor composition is also provided.

A phosphor composition is presented. The phosphor composition includes a solid solution of aluminum nitride and a complex oxide including europium and strontium, where an amount of oxygen in the solid solution is at least 0.4 weight percent and less than 1 weight percent. A lighting apparatus including a phosphor material including the phosphor composition is also provided.