Abstract: A light emitting unit may include a housing having a bottom portion parallel to an xz plane and an opened top opposite to the bottom portion, a light emitting chip on the bottom portion and generating light, and a lens which overlaps the opened top of the housing. The lens may have a convex structure with respect to the xz plane when viewed from a cross section parallel to an xy plane and a concave structure with respect to the xz plane when viewed from a cross section parallel to a yz plane.

Abstract: A light emitting diode package, a method of fabricating the same, and a display apparatus having the same are provided. The light emitting diode package includes a light emitting diode, a quantum dot layer, a band pass filter, disposed in a housing. The light emitting diode emits light of a first color. The quantum dot layer includes a plurality of quantum dots disposed on the light emitting diode to absorb a portion of the light emitted by the diode, and then emit light of a second color. The band pass filter is disposed on the quantum dot layer and has a first pass band corresponding to the light emitted from the diode and a second pass band corresponding to the light emitted from the quantum dots.

Abstract: A light emitting diode includes a conductive substrate and a light emitting structure which includes a first semiconductor layer disposed on the conductive substrate, an active layer disposed on the first semiconductor layer, and a second semiconductor layer disposed on the active layer, a semi-transmissive layer which is disposed on the light emitting structure, and a hole which is defined in the light-emitting structure, and filled with a light emitting material which emits light having a color different from a color of light emitted from the active layer.

Abstract: According to an exemplary embodiment, the present system and method provide a quantum dot sheet including: a color conversion film that includes quantum dots and a polymer layer in which the quantum dots are dispersed; a first barrier film that is provided one a planar surface of the color conversion film; and a phosphor pattern that has a portion located along an edge portion of the surface of the first barrier film. The phosphor pattern, which may be printed onto the quantum dot sheet, prevents deterioration of the color conversion performance of the quantum dot sheet that may occur due to oxidization.

Abstract: A light source unit, a method of fabricating the light source unit and a backlight assembly including the light source unit are provided. According to an exemplary embodiment of the inventive concept, there is provided a light source unit, comprising a circuit board, a light-emitting diode (“LED”) package configured to be disposed on the circuit board and including an LED chip emitting light, a wavelength conversion member configured to be disposed on the LED package and convert the wavelength of light emitted from the LED chip, and a mold member configured to be interposed between the LED package and the wavelength conversion member and support the wavelength conversion member.

Abstract: A frame and a light source module having the same are provided. According to embodiments, there is provided a frame comprising a plurality of bodies spaced apart from one another in one direction and connected to one another by a supporter. The plurality of bodies comprises a light emission window formed at an upper part of a body, a light incidence window formed at a bottom part of the body, and a mounting portion formed between the light emission window and the light incidence window, and including a groove that is formed on an inner wall of the body and is recessed horizontally into the body from the light incidence window.

Abstract: A silicate phosphor composition is provided having a ?-phase of an orthorhombic crystal structure whose space group is Pbnm 62, and whose composition is represented by the following chemical formula: Ca2-x-y-zMxSiO4:yCe3+,zN(0?x<0.5,0<y?0.1,0?z<0.15) In the formula, M represents at least one member selected from the group consisting of Mg, Sr, Ba, Zn, Na, Al, Ga, Ge, P, As and Fe, and N represents at least one member selected from the group consisting of Eu2+, Mn2+, Tb3+, Yb2+ and Tm3+. The silicate phosphor has a maximum absorbance for a wavelength of about 450 nm to about 475 nm corresponding to a main part of a blue excitation light, and has a great stability at a high temperature. As such the silicate phosphor may be used in combination with a blue light source to produce a white light.

Abstract: A light emitting diode includes a conductive substrate and a light emitting structure which includes a first semiconductor layer disposed on the conductive substrate, an active layer disposed on the first semiconductor layer, and a second semiconductor layer disposed on the active layer, a semi-transmissive layer which is disposed on the light emitting structure, and a hole which is defined in the light-emitting structure, and filled with a light emitting material which emits light having a color different from a color of light emitted from the active layer.

Abstract: A display apparatus includes a backlight unit which generates first light including first blue light, first green light and first red light and a display panel which receives the first light to display an image, where the backlight unit includes: a light emitting diode which generates an ultraviolet ray; a fluorescent substance layer disposed on the light emitting diode, where the fluorescent substance layer includes: a blue fluorescent substance layer which receives the ultraviolet ray and emits blue light; a green fluorescent substance layer which receives the ultraviolet ray and emits green light; and a red fluorescent substance layer which receives the ultraviolet ray and emits red light; and a first band-pass filter which receives the blue light, the green light and the red light and outputs the first blue light, the first green light and the first red light.

Abstract: A photonic crystal phosphor includes a phosphor which absorbs light and emits excited light having a radiation spectrum, a first coating layer covering the phosphor and having a first thickness, and a second coating layer covering the phosphor and having a second thickness. The first coating layer has a first refractive index. The second coating layer has a second refractive index. The first coating layer is between the phosphor and the second coating layer.

Abstract: A method of manufacturing a nanophosphor includes: contacting a nanophosphor raw material and a flux to form a mixture, sintering the mixture to form a nanoprecursor, ball-milling the nanoprecursor, and drying the ball-milled nanoprecursor to form the nanophosphor, wherein an average particle size of the nanophosphor is equal to or more than about 50 nanometers (nm) and equal to or less than about 7 micrometers (um).

Abstract: A light emitting unit may include a housing having a bottom portion parallel to an xz plane and an opened top opposite to the bottom portion, a light emitting chip on the bottom portion and generating light, and a lens which overlaps the opened top of the housing. The lens may have a convex structure with respect to the xz plane when viewed from a cross section parallel to an xy plane and a concave structure with respect to the xz plane when viewed from a cross section parallel to a yz plane.

Abstract: A display apparatus includes a backlight unit which generates first light including first blue light, first green light and first red light and a display panel which receives the first light to display an image, where the backlight unit includes: a light emitting diode which generates an ultraviolet ray; a fluorescent substance layer disposed on the light emitting diode, where the fluorescent substance layer includes: a blue fluorescent substance layer which receives the ultraviolet ray and emits blue light; a green fluorescent substance layer which receives the ultraviolet ray and emits green light; and a red fluorescent substance layer which receives the ultraviolet ray and emits red light; and a first band-pass filter which receives the blue light, the green light and the red light and outputs the first blue light, the first green light and the first red light.

Abstract: A light emitting diode package, a method of fabricating the same, and a display apparatus having the same are provided. The light emitting diode package includes a light emitting diode, a quantum dot layer, a band pass filter, disposed in a housing. The light emitting diode emits light of a first color. The quantum dot layer includes a plurality of quantum dots disposed on the light emitting diode to absorb a portion of the light emitted by the diode, and then emit light of a second color. The band pass filter is disposed on the quantum dot layer and has a first pass band corresponding to the light emitted from the diode and a second pass band corresponding to the light emitted from the quantum dots.

Abstract: A silicate phosphor composition is provided having a ?-phase of an orthorhombic crystal structure whose space group is Pbnm 62, and whose composition is represented by the following chemical formula: Ca2-x-y-zMxSiO4:yCe3+,zN(0?x<0.5,0<y?0.1,0?z<0.15) In the formula, M represents at least one member selected from the group consisting of Mg, Sr, Ba, Zn, Na, Al, Ga, Ge, P, As and Fe, and N represents at least one member selected from the group consisting of Eu2+, Mn2+, Tb3+, Yb2+ and Tm3+. The silicate phosphor has a maximum absorbance for a wavelength of about 450 nm to about 475 nm corresponding to a main part of a blue excitation light, and has a great stability at a high temperature. As such the silicate phosphor may be used in combination with a blue light source to produce a white light.

Abstract: A light emitting diode (“LED”) includes a substrate, a light emitting unit on the substrate and generating light, an encapsulation layer overlapping an entire of exposed surfaces of the light emitting unit, and a coating layer including an organic material and on the encapsulation layer. A refractive index of the coating layer is greater than a refractive index of air and less than a refractive index of the encapsulation layer.

Abstract: Disclosed is a method of manufacturing a lamp. The lamp is formed by arranging lamp electrodes in a lamp body provided therein with a discharge space and a fluorescent material. A first conductive layer is formed on a base conductor and a second conductive layer is formed on the first conductive layer by allowing the first conductive layer to react with a reaction solution including a solvent and metallic salt, thereby forming the lamp electrodes.