Abstract: Systems and methods to provide multiple channels of light to form a blended white light output, the systems and methods utilizing recipient luminophoric mediums to alter light provided by light emitting diodes. The predetermined blends of luminescent materials within the luminophoric mediums provide predetermined spectral power distributions in the white light output.

Abstract: A liquid crystal display device including a backlight unit and a fluorescent film, and a boundary fluorescent body is described.

Abstract: A display may have an array of pixels formed from organic light-emitting diodes of different colors. Each organic light-emitting diode may have an anode, a cathode, and an emissive layer between the anode and cathode. To prevent undesired color shifts with off-axis viewing angles, evaporated color filters may be formed on the cathode in alignment with the light-emitting diodes. The color filters may include red color filters that overlap the red diodes but not the green and blue diodes, may include red, blue, and green filters that overlap respective red, green, and blue diodes, or may include an orange filter that overlaps red and green diodes and a blue filter that overlaps blue diodes. The color filters may serve as a capping layer for the diodes or a capping layer that is separate from the color filters can be incorporated into the display.

Abstract: A light emitting device package is provided. The package includes a light emitting device including a substrate, and a light emitting structure having a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer stacked on the substrate; and a wavelength conversion film disposed in a path of light emitted by the light emitting device and having phosphor layers stacked on each other. A portion of the phosphor layers includes phosphor structures including a wavelength conversion material receiving light emitted from the light emitting device and converting a wavelength thereof and a binding resin binding the wavelength conversion material, and a transparent resin filling spaces between the phosphor structures.

Abstract: An organic electroluminescence display device including pixels, a first bank provided between the pixels and covering a periphery edge part of a pixel electrode, a second bank provided on a first upper surface of the first bank and including a second upper surface and a first side surface, an auxiliary wiring provided on the second upper surface and including a third upper surface and a second side surface, an organic electroluminescence layer in contact with the pixel electrode, the first and second banks, and the auxiliary wiring, a common pixel electrode bridging the pixels, the organic electroluminescence layer includes a first region in contact with the pixel electrode, the first upper surface and the first side surface, and a second region in contact with the auxiliary wiring and separated from the first region, and the common pixel electrode is in contact with the second side surface.

Abstract: The exemplary embodiments of the present invention have a first refractive surface whose distance from a central axis gradually increasing as being distanced from a rear surface, and light from a light source can be effectively emitted from a first refractive surface to a lateral direction or an upper lateral direction.

Abstract: A light emitting device can include a wavelength conversion member with a high light extraction efficiency and capable of achieving a light emitting device with high performance. The wavelength conversion member can include phosphor particles formed from a base material and an activator agent added thereto and having an irregular surface; a matrix material including a light-transmitting material, the matrix material being present between the phosphor particles; and additive particles formed from the base material and adhering to the irregular surface of the phosphor particle to form a particle structure having an irregular surface including a projected section and a recessed section. The difference between the projected section and the recessed section of the irregular surface of the particle structure is larger than the difference between a projected section and a recessed section of the irregular surface of the phosphor particle without the additive particles adhering thereto.

Abstract: An illumination module includes a color conversion cavity with a first interior surface having a first wavelength converting material and a second interior surface having a second wavelength converting material. A first LED is configured to receive a first current and to emit light that preferentially illuminates the first interior surface. A second LED is configured to receive a second current and emit light that preferentially illuminates the second interior surface. The first current and the second current are selectable to achieve a range of correlated color temperature (CCT) of light output by the LED based illumination device.

Abstract: Provided is a display device, which includes a light source, a light guide plate, a light conversion member, and a display panel. Light is incident to the light guide plate from the light source. The light conversion member is between the light source and the light guide plate. The display panel is on the light guide plate. The light guide plate includes a central region corresponding to an available display region of the display panel for displaying an image, an outer region around the central region, and a total reflection surface inclined from an optical axis of the light source, and disposed in the outer region.

Abstract: The invention relates to a color temperature variable light emitter and a method, adapted for generating color temperature variable light.

Abstract: A light conversion film including a first barrier film, a light conversion layer disposed on the first barrier film, the light conversion layer including a matrix resin and red quantum dots that are dispersed into the matrix resin, and a second barrier film disposed on the light conversion layer. The light conversion film satisfies following Equation (1): 5?(weight of quantum dot within light conversion layer/total weight of light conversion layer)×100×t?50, where, t is a thickness of the light conversion layer.

Abstract: Display backlight structures may provide backlight illumination that passes through display layers in the display. Light-emitting diodes may emit blue light into an edge of a light guide plate. Optical films may overlap the light guide plate. The optical films may include a quantum dot enhancement film. A peripheral strip of yellow reflector or other light control structures may be incorporated into the backlight structures to reduce blue edge effects. The light control structures may have features with a spatially varying density, may be formed from quantum dot enhancement film, or may be formed form other structures. The light control structures may be formed on the surfaces of the optical films, on a reflective layer under the light guide plate, or on a surface of a mold frame or other structure that lies in a plane parallel to the plane of the light guide plate.

Abstract: Light emitter devices with improved light extraction and related methods are disclosed. In one embodiment, the light emitter device can include a submount, at least one light emitting chip disposed over the submount, and a lens disposed over the light emitting chip. The lens can include a lens base that can have substantially the same geometry as a geometry of the submount.

Abstract: A display apparatus with an image pickup apparatus has a display unit for displaying an image by a plurality of light-transparent display pixels and an image pickup unit arranged at a rear surface of the display unit to pick up object light from an object at a front surface of the display unit. The display unit has a plurality of light-transparent phase adjustment units which are arranged in correspondence to the display pixels and adjust an optical-path length of object light. The plurality of phase adjustment units have different thicknesses in the optical axis direction of the object light which transmits, and the phase adjustment units having the same thickness are arranged at a predetermined period.

Abstract: A white light emitting LED device comprises: base, blue light LED chips, light reflector and transparent substrate covered with a phosphor coating; two ends of the light reflector connect the base and the transparent substrate, respectively, the inner surface of the light reflector is covered with a light-reflecting coating; blue light LED chips are set on the surface of the base pointing to the transparent substrate, and the electrode leads of blue light LED chips pass through the base; blue light LED chip is a single chip, or a group of chips connected in series, or in parallel, or in a mixed manner; the transparent substrate has the shape of a plane, or a convex, or a semi-cylinder. The present invention gets the white light by utilizing the blue lights emitted by the blue light LED chips to irradiate the transparent substrate which is covered with a phosphor coating.

Abstract: A display apparatus is provided. The display apparatus includes a first light source unit comprising a first light source that emits light having a first spectral band and a photo-converter that converts the light having the first spectral band to a first color light. A spectral band of the first color light is different from the first spectral band of the light emitted from the first light source. The display apparatus also includes a second light source unit comprising a second light source that emits light having a second spectral band. The light having the second spectral band corresponds to a second color light, and has a same color as the light having the first spectral band. A spectral band of the second color light is different from the spectral band of the first color light.

Abstract: Provided is a display device. The display device includes a display panel and first to third light source units. The display panel includes a plurality of pixels. The first to third light source units are disposed on a rear of the display panel. The first light source unit emits yellow light. The second light source unit emits a first blue light in a first wavelength band. The third light source unit emits a second blue light in a second wavelength band. The second wavelength band includes light of a longer wavelength than light of the first wavelength band. The first wavelength band ranges from about 430 nm to about 455 nm. The second wavelength band may ranges from about 460 nm to about 505 nm.

Abstract: A system including a first set of light emitting diodes, a second set of light emitting diodes, and a control module. The first set of light emitting diodes is configured to emit blue light having first wavelengths in a first wavelength range in a spectrum of blue light. The first set of light emitting diodes includes a green phosphor configured to convert the blue light having the first wavelengths to green light. The second set of light emitting diodes is configured to emit blue light having second wavelengths in a second wavelength range in the spectrum of blue light. The second set of light emitting diodes includes a red phosphor configured to convert the blue light having the second wavelengths to red light. The first wavelength range is less than the second wavelength range. The control module is configured to control currents through the first set of light emitting diodes and the second set of light emitting diodes.

Abstract: There is provided a display device including a light-emitting element corresponding to a pixel for a color, and a white color filter corresponding to a white pixel. Transmittance of the white color filter is based on neutral density (ND) transmittance that is uniform throughout an entire wavelength band of visible light, and transmittance in a particular wavelength band in the entire wavelength band of the visible light is decreased to be lower than the ND transmittance.

Abstract: A light emitting device for controlled color rendition includes a support unit; a luminous element mounted on the support unit; and a wavelength conversion unit formed on the support unit. The wavelength conversion unit covers the luminous element as an encapsulant containing first light wavelength converters emitting light of a first wavelength and second light wavelength converters emitting light of a second wavelength, where the first wavelength is larger than the second wavelength. The wavelength conversion unit includes a first mixture region adjacent to the luminous element and a second mixture region above the first mixture region. The first light wavelength converters are concentratively distributed in the first mixture region, and the second light wavelength converters are concentratively distributed in the second mixture region.

Abstract: Light emitter devices having improved light output and related methods are disclosed. In one embodiment, light emitter devices can include a light emission area including one or more light emitting chips. The emitter device can further include a filling material at least partially disposed over the one or more light emitting chips. The filling material can include a first discrete layer of phosphor containing material and a second discrete layer of optically clear material. The device can optionally include more than one discrete layer of optically clear material. Each of the discrete layers of material can be separately dispensed within the light emission area such that the filling material is dispensed to a level that is substantially flush with an upper surface of the emitter device.

Abstract: A process for manufacturing a liquid crystal display panel, a display device and a monochromatic quantum dot layer are disclosed; in the liquid crystal display panel, a plurality of pixel units are defined on the liquid crystal display panel, each pixel unit having sub-pixel units displaying different colors, at a position of the apposing substrate or the array substrate corresponding to a sub-pixel unit of at least one color in each pixel unit, a monochromatic quantum dot layer is disposed. Dispersing of monochromatic quantum dots with a macromolecular polymer network can prevent the quantum dots from aggregation and increase the quantum yield of the quantum dots, so as to increase the light efficacy of quantum excitation, as well as avoiding the contact between the monochromatic quantum dots with oxygen and increasing the life of quantum dots.

Abstract: A method of tuning color temperature of light-emitting device having an overall color temperature, comprising: providing a carrier; disposing at least two LED units on the carrier, wherein there is a space formed between the two LED units, and the overall color temperature of the light-emitting device is positively correlated to the space; and setting a predetermined temperature for the overall color temperature by adjusting the space.

Abstract: A microcavity organic light emitting diode (OLED) device is disclosed having a narrow-band phosphorescent emitter.

Abstract: A light-emitting device includes a first light-emitting element disposed on a substrate, a convex-shaped first sealing resin that includes an annular portion formed in a closed annular shape in a top view and seals the first light-emitting element, a second light-emitting element disposed on the substrate in a region surrounded by the annular portion of the first sealing resin, and a second sealing resin filled in the region surrounded by the annular portion so as to seal the second light-emitting element. One of the first and second sealing resin includes a phosphor particle or the first and second sealing resins include a phosphor particle to emit a different fluorescent color from each other.

Abstract: The present invention provides a light emitting device which comprises blue and red light emitting diode (LED) chips and at least one phosphor for emitting green light by means of light emitted from the blue LED chip, and an LCD backlight including the light emitting device. According to the light emitting device of the present invention, uniform white light can be implemented and both high luminance and wider color reproduction range can also be obtained. Accordingly, an LCD backlight for uniform light distribution on an LCD as well as low power consumption and high durability can be manufactured using the light emitting device.

Abstract: A phosphor composition and a white light emitting device using the same are disclosed. The white light emitting device includes a blue light emitting diode and a phosphor composition disposed on the blue light emitting diode, wherein the phosphor composition includes a yellow lanthanum silicon nitride, a yellow ?-SiAlON and a red CaAlSiN, and the weight proportion of the yellow lanthanum silicon nitride, the yellow ?-SiAlON and the red CaAlSiN is 1: 1:0.3˜0.45.

Abstract: A pixel may include an organic light emitting diode (OLED) with a cathode electrode coupled to a second power source, a first transistor with a first electrode coupled to a data line, with a second electrode coupled to a first node, the first transistor being turned on when a scan signal is supplied to a scan line, a first capacitor coupled between the first node and a third power source to charge a first capacitor voltage corresponding to a data signal supplied from the data line, and a pixel circuit charged by the first capacitor voltage to supply current corresponding to a charged first power source voltage from a first power source to the second power source via the OLED.

Abstract: According to one embodiment, a semiconductor light emitting device includes a semiconductor layer, a p-side electrode, an n-side electrode, a p-side metal pillar, an n-side metal pillar, and an insulator. The semiconductor layer includes a first surface, a second surface opposite to the first surface, and a light emitting layer. The p-side metal pillar includes a p-side external terminal. The n-side metal pillar includes an n-side external terminal. At least one selected from an area and a planar configuration of the p-side external terminal is different from at least one selected from an area and a planar configuration of the n-side external terminal.

Abstract: In accordance with certain embodiments, a phosphor element at least partially surrounding a light-emitting die is shaped to influence color-temperature divergence.

Abstract: Solid state light emitting apparatuses include blue LEDs (e.g., including short wavelength and long wavelength blue LEDs in combination) to stimulate green lumiphors, with supplemental emissions by red lumiphors and/or red solid state light emitters, to provide aggregate emissions with high S/P ratio (e.g., ?1.95) and high color rendering values (e.g., ?85), preferably in combination with high brightness and high luminous efficacy. In certain embodiments, a light emitting apparatus may be devoid of a LED having a peak wavelength of from 470-599 nm and/or devoid of lumiphors with peak wavelengths in the yellow range. Multiple LEDs may be arranged in an emitter package. A fabrication method includes mounting multiple solid state emitters (e.g., with a first blue and a second red emitter) to a common substrate, applying a stencil or mask over the second emitter, applying a lumiphoric material over the first emitter, and removing the stencil or mask.

Abstract: An electroluminescent device, comprising: a substrate; a first electrode and a second electrode disposed on the substrate; and an electroluminescent layer sandwiched between the first electrode and the second electrode, wherein at least one of the first and second electrodes is configured to have a grating structure; and wherein the grating structure has a grating period within a range of 0.9˜1.1 times of a wavelength of a light wave generated in the electroluminescent layer.

Abstract: Disclosed is a method for producing a high-luminance monochromatic light based on optical wavelength conversion, which is used in a light source comprising an excitation light source, and comprises the steps of: setting a first wavelength conversion material and a second wavelength conversion material; using an excitation beam to excite the first wavelength conversion material and the second wavelength conversion material, wherein the first wavelength conversion material absorbs the excitation light to produce a first excited light; the second wavelength conversion material absorbs a first waveband portion of the first excited light to produce a second excited light, where the energy of the absorbed first waveband portion is more than 50% of the total energy of the first excited light; mixing the second excited light and the unabsorbed portion of the first excited light together to form the high-luminance monochromatic light.

Abstract: A semiconductor light emitting device package including a main body including a supporting member and an outside member on the supporting member; at least one semiconductor light emitting device disposed on the supporting member in which the outside member at least partially surrounds the at least one semiconductor light emitting device; first and second electrodes, at least one electrode of the first and second electrodes at least partially extending under the at least one semiconductor light emitting device; a metallic member disposed under the at least one semiconductor light emitting device and extending beyond outside edges of the at least one semiconductor light emitting device; a first molding part surrounded by the outside member and covering the at least one semiconductor light emitting device; and a second molding part disposed on the first molding part, the second molding part formed in a domed shape.

Abstract: The present disclose relates to a lens unit. The lens unit includes a first lens and a second lens. The first lens includes a first light input surface, a first light output surface opposite to the first light input surface and a first side surface connected to the first light output surface. The first lens has a first refractive index. The second lens defines a cavity at a light input surface thereof for receiving the first lens. The second light output surface of the second lens contacts the first light output surface and the first side surface of the first lens. The second lens has a second refractive index which less than the first refractive index. The present disclose also relates to a light source module with the lens unit.

Abstract: A surface light emitter according to an embodiment of the present invention, includes: a base material; a plurality of ribbon-shaped organic electroluminescent elements provided side by side on the base material; and a lenticular sheet that is attached to the base material and the ribbon-shaped organic electroluminescent elements through an adhesion layer, and that has a plurality of convex cylindrical lenses provided side by side. A direction in which the convex cylindrical lenses extend and a direction in which the ribbon-shaped organic electroluminescent elements extend are substantially parallel to each other.

Abstract: A lighting device is provided with a lighting unit including a light emitting element and fluorescent bodies, which emit light of different wavelengths when excited by light from the light emitting element. When a peak output value of emitted light is 100% in a range of 440-465 nm, the lighting unit emits light having an output value at 500 nm that is 35%-55%, an output value at 550 nm that is 45%-80%, an output value at 600 nm that is 45%-75%, and an output value at 640 nm that is 50%-80%. The lighting unit emits light having a color temperature of 4500-5500 K and with the output value at 640 nm in a range of 100%-120% relative to the output value at 600 nm and in a range of 85%-130% relative to the output value at 550 nm.

Abstract: An LED lamp device includes a plurality of LED elements separately mounted on a substrate and effective to emit light having a first wavelength. A fluorescent element includes a fluorescent material excitable by light emitted from the LED elements to emit light of a second wavelength, and is arranged to cover each LED element with no gaps provided between the fluorescent element and the substrate. The fluorescent element is shaped in accordance with the positioning of the LED elements and the spaces defined there-between such that a proportion of light of the first wavelength with respect to light of the second wavelength is substantially uniform irrespective of light exit direction.

Abstract: A photoluminescent nanofiber composite includes a nanofiber substrate, first luminescent particles, and second luminescent particles. The first luminescent particles are supported by the nanofibers and span at least a portion of a substrate surface, as a layer on the substrate surface, or with some particles located in a bulk of the substrate, or both. The second luminescent particles are disposed on the substrate. The second luminescent particles may be disposed directly on the substrate surface or on the first luminescent particles. The second luminescent particles may be deposited in a pattern of deposition units. The first and second luminescent particles are configured for emitting light of different respective wavelengths in response to excitation by a light beam. One or more surface treatment coatings may be provided at different locations.

Abstract: A light emitting device includes a light emitting diode (LED); a transparent optic having a refractive index noptic; and a phosphor layer spaced apart from the LED and positioned between the LED and the transparent optic. The phosphor layer has an effective refractive index nphosphor, where a gap between the LED and the phosphor layer has a refractive index ngap that is less than nphosphor. The transparent optic has an inner convex surface in contact with the phosphor layer. The inner convex surface has an inner radius of curvature r; and an outer convex surface facing away from the phosphor layer and being a surface through which the light emitting device emits light into a medium adjacent the outer convex surface. The medium has a refractive index nmedium. The outer convex surface has an outer radius of curvature R, such that r/R is equal to nmedium/noptic.

Abstract: According to one embodiment, a semiconductor light emitting element includes: a first conductive pillar extending in a first direction; a second conductive pillar extending in the first direction; a first semiconductor layer of a first conductivity type provided on the first conductive pillar; a light emitting layer provided on the first semiconductor layer; a second semiconductor layer of a second conductivity type provided on the light emitting layer and on the second conductive pillar; a sealing unit covering a side surface of the first conductive pillar and a side surface of the second conductive pillar; and a light transmissive layer provided on the second semiconductor layer and having light transmissivity, a hardness of an upper surface portion of the light transmissive layer being higher than a hardness of a lower portion between the upper surface portion and the second semiconductor layer.

Abstract: A display device includes a first optical resonance layer on a substrate, a switching structure on the first optical resonance layer, a first electrode on the switching structure, a light emitting structure on the first electrode, and a second electrode on the emitting structure. The switching structure may include a switching device and an optical distance controlling insulation layer covering the switching device. A first optical resonance distance for an optical resonance of the light may be provided between an upper face of the first optical resonance layer and a bottom face of the second electrode.

Abstract: Solid state light emitting devices include multiple LED components providing adjustable melatonin suppression effects. Multiple LED components may be operated simultaneously according to different operating modes according to which their combined output provides the same or similar chromaticity, but provides melatonin suppressing effects that differ by at least a predetermined threshold amount between the different operating modes. Switching between operating modes may be triggered by user input elements, timers/clocks, or sensors (e.g., photosensors). Chromaticity of combined output of multiple LED components may also be adjusted, together with providing adjustable melatonin suppression effects at each selected combined output chromaticity.

Abstract: According to one embodiment, a semiconductor light emitting device includes a first semiconductor layer, a light emitting layer, a second semiconductor layer, a p-side electrode, a plurality of n-side electrodes, a first insulating film, a p-side interconnect unit, and an n-side interconnect unit. The p-side interconnect unit is provided on the first insulating film to connect to the p-side electrode through a first via piercing the first insulating film. The n-side interconnect unit is provided on the first insulating film to commonly connect to the plurality of n-side electrodes through a second via piercing the first insulating film. The plurality of n-side regions is separated from each other without being linked at the second surface. The p-side region is provided around each of the n-side regions at the second surface.

Abstract: Disclosed herein is an organic EL display device, including: a lower electrode provided every first organic EL element for a blue color and every second organic EL element for another color on a substrate; a hole injection/transport layer provided every first and second organic EL elements; a second organic light emitting layer for another color provided on said hole injection/transport layer for said second organic EL element; a connection layer made of a low-molecular material and provided over an entire surface of said hole injection/transport layer for said second organic light emitting layer and said first organic EL element; a first organic light emitting layer for a blue color provided over an entire surface of said connection layer; and an electron injection/transport layer and an upper electrode provided over an entire surface of said organic light emitting layer in order.

Abstract: Lamps and bulbs are disclosed generally comprising different combinations and arrangement of a light source, one or more wavelength conversion materials, regions or layers which are positioned separately or remotely with respect to the light source, and a separate diffusing layer. This arrangement allows for the fabrication of lamps and bulbs that are efficient, reliable and cost effective and can provide an essentially omni-directional emission pattern, even with a light source comprised of a co-planar arrangement of LEDs. Additionally, this arrangement allows aesthetic masking or concealment of the appearance of the conversion regions or layers when the lamp is not illuminated. Some embodiments of the present invention utilize LED chips to provide one or more lighting components instead of providing the components through phosphor conversion. This can provide for lamps that can be operated with lower power and can be manufactured at lower cost.

Abstract: In a first aspect of the present invention, a light-emitting diode includes a light-emitting element with a p-n junction, a first light-transmitting member including a phosphor and sealing the light-emitting element, and first and second covers disposed on opposite surfaces of the first light-transmitting member. It is disclosed that the first and second covers extend over edges of the opposite surfaces of the first light-transmitting member. In a second aspect of the present invention, a first cover disposed on a first parallel surface of a first light-transmitting member can be greater in thickness than a second cover. In some embodiments, it is disclosed that a second light-transmitting member with higher diffusion coefficient than the first light-transmitting member is disposed in contact with a first perpendicular surface of the first light-transmitting member.

Abstract: A light-emitting module including: a first light source including a first light-emitting element and a wavelength converter and emitting visible light having a chromaticity within rectangle range ABCD, the wavelength converter changing a wavelength of a portion of light emitted by the first light-emitting element; and a second light source including a second light-emitting element and emitting red light. The light-emitting module emits white light by mixing the visible light and the red light, and satisfies conditions 2.0?(SL?SH)/(FL?FH)?3.0 and 0.01?((xL?xH)2+(yL?yH)2)1/2?0.02.

Abstract: In accordance with certain embodiments, a phosphor element at least partially surrounding a light-emitting die is shaped to influence color-temperature divergence.

Abstract: A wave-length conversion inorganic member can includes a base body and an inorganic particle layer on the base body. The inorganic particle layer can include particles of an inorganic wave-length conversion substance which is configured to absorb light of a first wave-length and to emit light of a second wave-length different from the first wave-length. The inorganic particle layer can include an agglomerate of a plurality of the particles. Each of the plurality of the particles are in contact with at least one of the other particles or the base body. A cover layer comprises an inorganic material, and the cover layer continuously covers a surface of the base body and surfaces of the particles. The inorganic particle layer has an interstice enclosed by the particles, or by the particles and one of the base body and the cover layer.