Abstract: A display apparatus includes light-emitting devices disposed on emission areas of a device substrate. The device substrate can include a first surface toward the light-emitting devices and a second surface opposite to the first surface. A diode substrate can be disposed on the second surface of the device substrate. Light-emitting diodes can be disposed side by side on a surface of the diode substrate toward the device substrate. The light-emitting diodes can be disposed between the emission areas. Thus, in the display apparatus, the luminance of an image can be improved.

Abstract: A light emitting display device can includes a substrate having a driving circuit in each of sub-pixels, an insulating layer provided on the driving circuit, a reflective electrode disposed in the insulating layer and connected to the driving circuit, a trench provided in the insulating layer while neighboring the reflective electrode, and a light emitting element including an anode. The anode can overlap with the reflective electrode and contact the reflective electrode in an interior of the trench.

Abstract: A display apparatus including light-emitting devices is provided. The light-emitting devices can overlap emission areas of a device substrate. Each of the emission areas can display a different color from adjacent emission area. Each of the light-emitting devices can have a stacked structure of a lower electrode, a light-emitting unit and an upper electrode. For example, the light-emitting unit of each light-emitting device can include an emission stack having a stacked structure of a red emission material layer and a green emission material layer. The lower electrode of at least one of the light-emitting devices can have a different resistance from the lower electrodes of adjacent light-emitting devices. Thus, in the display apparatus, the overall luminance can be improved.

Abstract: A white light emitting device, or more particularly an inverted white light emitting device, includes a plurality of stacks configured to emit white light, and an optical compensation layer provided at an outer surface of an electrode through which light is emitted to the outside. The configuration reduces the thickness of an electron transport layer adjacent to a cathode in the stack and therefore reduces the driving voltage and improves the viewing angle characteristics and as well as the efficiency.

Abstract: Provided are a boron-nitride nanoplatelet(s) (BNNP)/metal nanocomposite powder and a preparing method thereof, the BNNP/metal nanocomposite powder including a base metal and BNNP dispersed in the base metal and configured to serve as a reinforcement of the base metal, wherein the BNNP are interposed between metal particles of the base metal in the form of a thin film of a plurality of layers and combined with the metal particles, and an amount of the BNNP in the base metal is greater than 0 vol % and less than 90 vol %.

Abstract: Provided are a boron-nitride nanoplatelet(s) (BNNP)/metal nanocomposite powder and a preparing method thereof, the BNNP/metal nanocomposite powder including a base metal and BNNP dispersed in the base metal and configured to serve as a reinforcement of the base metal, wherein the BNNP are interposed between metal particles of the base metal in the form of a thin film of a plurality of layers and combined with the metal particles, and an amount of the BNNP in the base metal is greater than 0 vol % and less than 90 vol %.