A unit pixel and a displaying apparatus including the unit pixel are provided. The unit pixel includes a transparent substrate, and a plurality of light emitting devices arranged on the transparent substrate. The transparent substrate includes at least one light scattering line disposed therein so as to correspond to each of the plurality of light emitting devices.

A method of manufacturing a light-emitting device includes: a providing step including providing a plurality of light sources, each of the light sources having an upper surface including a light-emitting portion, a lower surface opposite to the upper surface, and lateral surfaces between the upper surface and the lower surface, wherein each of the light sources includes an external connection terminal at the lower surface, and wherein the plurality of light sources are ranked in terms of at least one of luminous flux or chromaticity; an extracting step including extracting a plurality of light sources in a desired rank from the plurality of light sources; and a bonding step including bonding the lateral surfaces of adjacent ones of the plurality of extracted light sources via a bonding member such that the upper surfaces and the lower surfaces of the light sources are exposed from the bonding member and such that the bonding member is spaced apart from the external connection terminals.

Discussed is a color filter structure for converting a wavelength of light emitted from a light-emissive element. The color filter structure includes a light-conversion layer containing a first resin and quantum dots dispersed in the first resin, wherein each quantum dot has a core/shell structure. The color filter structure further includes a light-absorbing layer stacked on the light-conversion layer, wherein the light-absorbing layer contains a second resin and semiconductor nano-particles dispersed in the second resin. The semiconductor nano-particles absorb light emitted from the light-emissive element. Accordingly, the color filter structure improves color purity and luminance of the emitted light.

Display device includes a first substrate; an active material layer on the first substrate and including a channel area, a first doped area on one side of the channel area, and a second doped area on another side of the channel area; a gate insulating layer on the active material layer; a first conductive layer on the gate insulating layer and including a gate electrode overlapping the channel area and a signal application electrode; a second conductive layer including a first electrode electrically connected to the first doped area, a second electrode electrically connected to the second doped area, and a third electrode electrically connected to the signal application electrode; a light emitting element; and a third conductive layer on the light emitting element, the third conductive layer including a first contact electrode electrically connected to the second electrode, and a second contact electrode electrically connected to the third electrode.

A micro light emitting device display apparatus including a substrate, a plurality of micro light emitting devices, an isolation layer, and an air gap is provided. The micro light emitting devices are discretely disposed on the substrate. The isolation layer is disposed between the micro light emitting devices. The air gap is disposed between the micro light emitting devices, the isolation layer, and the substrate.

Solid-state lighting devices including light-emitting diodes (LEDs), and more particularly LED devices with light-altering particle arrangements are disclosed. An LED device may include an LED chip with a light-altering material arranged to redirect light in a desired emission direction. The light-altering material may include light-altering particles with a median particle size that is determined based on a wavelength of light provided by the LED chip. Such light-altering particles may be arranged proximate sidewalls of the LED chip to redirect lateral emissions. LED devices may further include lumiphoric materials and other light-altering particles arranged proximate the lumiphoric materials with a median particle size that is determined based on a wavelength of light provided by the lumiphoric materials. By selectively arranging different light-altering particles in different areas of an LED device based on what wavelengths of light are most concentrated, the amount of overall light redirected may be increased, thereby improving efficiency.

The present disclosure relates to a light-emitting diode, LED, filament (110). According to an embodiment, the LED filament comprises an elongated substrate (111) and a plurality of light-emitting diodes, LEDs, (112) which are mechanically coupled to the substrate. According to an embodiment, the LED filament further comprises an at least in part light-transmissive encapsulation (114) which encapsulate the plurality of LEDs and at least partially encapsulates the substrate, and a plurality of at least partially light-reflective particles (115) which are arranged on an outer surface of the encapsulation.

A light emitting diode may include a light emission layer and a charge transport layer disposed on the light emission layer. One or more nanostructures may be formed by removing a portion of the charge transport layer and/or the light emission layer and depositing a plasmonic metamaterial on a remaining portion of the charge transport layer and/or the light emission layer. The one or more nanostructures may include the plasmonic metamaterial deposited inside the recesses formed by the remaining portion of the charge transport layer and/or the light emission layer, with an additional portion of the charge transport layer disposed on top. A material composition, shape, dimension, placement, and/or distribution of the one or more nanostructures may be configured to maximize the quantum efficiency of the light emitting diode, especially at a microscale of less than 100 microns.

According to at least one aspect, a lighting device is provided. The lighting device comprises a circuit board, a light emitting diode (LED) mounted to the circuit board and configured to emit light, a lens disposed over the LED having a bottom surface facing the circuit board, a top surface opposite the bottom surface, and a lateral surface between the top and bottom surfaces, and an elastomer encapsulating at least part of the circuit board. The elastomer may not be in contact with at least part of the lateral surface of the lens so as to form a gap between the elastomer and the lateral surface of the lens.

A phosphor powder composed of α-sialon phosphor particles containing Eu. With regard to the phosphor powder, a volume-based median diameter (D.sub.50) determined by a laser diffraction scattering method is equal to or more than 10 μm and equal to or less than 20 μm, and a diffuse reflectance with respect to light at a wavelength of 600 nm is equal to or more than 93% and equal to or less than 99%.