Abstract: An emission spectrum of a manganese-doped red fluoride phosphor includes a zero phonon line crest and a crest. The zero phonon line crest has a first peak emission wavelength and a first intensity (I1). The crest has a second peak emission wavelength and a maximum intensity (Imax) except for the zero phonon line crest. The second peak emission wavelength is greater than the first peak emission wavelength. A ratio (I1/Imax) of the first intensity (I1) to the maximum intensity (Imax) is ranged from about 0.2 to about 8 such that a luminous decay time of the manganese-doped red fluoride phosphor is less than 10 ms.

Abstract: The present invention provides a phosphor represented by the following formula: K2[Ge1-xF6]:Mnx4+, wherein 0<x<0.2. The phosphor has a hexagonal phase of a P63mc space group. The present invention also provides a method for fabricating the above phosphor. The present invention further provides a light-emitting device and a backlight module employing the same.

Abstract: A fluoride phosphor including a sheet-like crystal and a manufacturing method and an application therefore are disclosed. The fluoride phosphor has a chemical formula A2[MF6]:Mn4+, with Mn4+ as an activator. The A is Li, Na, K, Rb, Cs, NH4 or a combination thereof. The M is Ge, Si, Sn, Ti, Zr or a combination thereof. The sheet-like crystal has a thickness d. A crystal flat surface of the sheet-like crystal has a maximum length a. The maximum length a is defined as a distance between two end points on an edge of the crystal flat surface and farthest from each other. 8?a/d?35.

Abstract: The present invention provides a phosphor with a preferred orientation represented by the following formula: A2[MF6]:Mn4+, wherein A is selected from a group consisting of Li, Na, K, Rb, Cs, and NH4, M is selected from a group consisting of Ge, Si, Sn, Ti, and Zr. The preferred orientation is a (001)/(011) preferred orientation. The present invention also provides a method for fabricating the above phosphor. The present invention further provides a light-emitting element package structure employing the same.

Abstract: The present disclosure provides a light emitting structure including a blue light source, a first fluorescent material layer and a second fluorescent material layer. The blue light source has a light emitting surface. The first fluorescent material layer covers the light emitting surface of the blue light source. The first fluorescent material layer consists of a first fluorescent material. An excitation band of the first fluorescent material is in a blue wave band, and an emission band of the first fluorescent material is in a green wave band. The second fluorescent material layer covers the first fluorescent material layer. The second fluorescent material layer consists of a second fluorescent material. An excitation band of the second fluorescent material is in a green wave band, and an emission band of the second fluorescent material is in a red wave band. A light device and a backlight module are also provided herein.

Abstract: A wavelength-converting film and a light emitting device and a display device using the same are disclosed. The wavelength converting film comprises a fluoride phosphor powder with a Mn4+ as an activator, wherein the fluoride phosphor powder with the Mn4+ as the activator comprises a sheet-like crystal and has a chemical formula of A2[MF6]:Mn4+, wherein A is Li, Na, K, Rb, Cs, NH4, or a combination thereof, and M is Ge, Si, Sn, Ti, Zr, or a combination thereof.

Abstract: A fluoride phosphor including a sheet-like crystal and a manufacturing method and an application therefore are disclosed. The fluoride phosphor has a chemical formula A2[MF6]:Mn4+, with Mn4+ as an activator. The A is Li, Na, K, Rb, Cs, NH4 or a combination thereof. The M is Ge, Si, Sn, Ti, Zr or a combination thereof. The sheet-like crystal has a thickness d. A crystal flat surface of the sheet-like crystal has a maximum length a. The maximum length a is defined as a distance between two end points on an edge of the crystal flat surface and farthest from each other. 8?a/d?35.

Abstract: The present invention provides a method for fabricating a fluoride phosphor. A first solution is formed by dissolving potassium fluoride (KF) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. A second solution is formed by mixing a surfactant and a silane. The first solution and the second solution are mixed to form a precipitate. The precipitate is collected after the first solution and the second solution are mixed. The present invention also provides a fluoride phosphor represented by the following formula: K2[SiF6]:Mn4+. The fluoride phosphor has a particle size in a range of about 1 ?m to about 10 ?m. The present invention further provides a light-emitting apparatus and backlight module employing the same.

Abstract: A light emitting diode (LED) package includes a light element, a light transferring layer disposed on the light element, a packaging layer enclosing the light transferring layer, a white wall surrounding the packaging layer and a diffusion film disposed on the packaging layer. The light transferring layer has a light outlet face, a light inlet face opposite to the light outlet face and a peripheral side. The light inlet face faces the light element. The white wall surrounds the peripheral side that is enclosed by the packaging layer.

Abstract: The present disclosure provides a method for fabricating a phosphor. A first solution is formed by dissolving potassium hexafluorogermanate (K2GeF6) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. An anhydrous ethanol is added to the first solution to make a total concentration of fluoride ions of potassium hexafluorogermanate (K2GeF6), hydrofluoric acid, and either K2MnF6 or KMnO4 equal to or less than 48M to form a precipitate. Afterward, the precipitate is collected.

Abstract: A quantum dot composite material and a manufacturing method and an application thereof are provided. The quantum dot composite material includes an all-inorganic perovskite quantum dot and a modification protection on a surface of the all-inorganic perovskite quantum dot. The all-inorganic perovskite quantum dot has a chemical formula of CsPb(ClaBr1-a-bIb)3, wherein 0?a?1, 0?b?1.

Abstract: A wavelength-converting material and an application thereof are provided. The wavelength-converting material includes an all-inorganic perovskite quantum dot having a chemical formula of CsPb(ClaBr1-a-bIb)3, wherein 0?a?1, 0?b?1.

Abstract: A light emitting diode (LED) package includes a light element, a light transferring layer disposed on the light element, a packaging layer enclosing the light transferring layer, a white wall surrounding the packaging layer and a diffusion film disposed on the packaging layer. The light transferring layer has a light outlet face, a light inlet face opposite to the light outlet face and a peripheral side. The light inlet face faces the light element. The white wall surrounds the peripheral side that is enclosed by the packaging layer.

Abstract: The present invention provides a method for fabricating a fluoride phosphor. A first solution is formed by dissolving potassium fluoride (KF) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. A second solution is formed by mixing a surfactant and a silane. The first solution and the second solution are mixed to form a precipitate. The precipitate is collected after the first solution and the second solution are mixed. The present invention also provides a fluoride phosphor represented by the following formula: K2[SiF6]:Mn4+. The fluoride phosphor has a particle size in a range of about 1 ?m to about 10 ?m. The present invention further provides a light-emitting apparatus and backlight module employing the same.

Abstract: The present disclosure provides a light emitting structure including a blue light source, a first fluorescent material layer and a second fluorescent material layer. The blue light source has a light emitting surface. The first fluorescent material layer covers the light emitting surface of the blue light source. The first fluorescent material layer consists of a first fluorescent material. An excitation band of the first fluorescent material is in a blue wave band, and an emission band of the first fluorescent material is in a green wave band. The second fluorescent material layer covers the first fluorescent material layer. The second fluorescent material layer consists of a second fluorescent material. An excitation band of the second fluorescent material is in a green wave band, and an emission band of the second fluorescent material is in a red wave band. A light device and a backlight module are also provided herein.

Abstract: The present invention provides a phosphor with a preferred orientation represented by the following formula: A2[MF6]:Mn4+, wherein A is selected from a group consisting of Li, Na, K, Rb, Cs, and NH4, M is selected from a group consisting of Ge, Si, Sn, Ti, and Zr. The preferred orientation is a (001)/(011) preferred orientation. The present invention also provides a method for fabricating the above phosphor. The present invention further provides a light-emitting element package structure employing the same.

Abstract: The present invention provides a phosphor represented by the following formula: K2[Ge1-xF6]:Mnx4+, wherein 0<x<0.2. The phosphor has a hexagonal phase of a P63mc space group. The present invention also provides a method for fabricating the above phosphor. The present invention further provides a light-emitting device and a backlight module employing the same.

Abstract: The disclosure provides a heat sink for electrical elements and a light-emitting device containing thereof. The heat sink includes a radiating substrate and at least one hollow radiating channel. In which, the hollow radiating channel is horizontally embedded in the radiating substrate, and has two openings disposed on the same site or the opposite sites of the radiating substrate, so that gas may flow in the hollow radiating channel and remove heat of the radiating substrate. And a light-emitting device containing the heat sink is also provided.

Abstract: A LED package structure includes a base portion, a light-emitting chip, a cup portion and an encapsulating glue. The base portion has an upper surface and a lower surface. The upper surface has a die-bonding area. The light-emitting chip emits a light with a first wavelength and is located on the die-bonding area. The cup portion is located on the base portion to surround the die-bonding area to form a recess having an opening. The encapsulating glue is filled into the recess. The encapsulating glue has a wavelength conversion material configured to convert part of the light with the first wavelength into a light with a second wavelength. The cup portion includes an electro chromic layer electrically connected to a first external power and a transmittance of the electro chromic layer is changed in accordance with an input voltage of the first external power to adjust the light-emitting profile of the light-emitting chip.

Abstract: The disclosure provides a heat sink for electrical elements and a light-emitting device containing thereof. The heat sink includes a radiating substrate and at least one hollow radiating channel. In which, the hollow radiating channel is horizontally embedded in the radiating substrate, and has two openings disposed on the same site or the opposite sites of the radiating substrate, so that gas may flow in the hollow radiating channel and remove heat of the radiating substrate. And a light-emitting device containing the heat sink is also provided.