An organic light-emitting device includes a mixed layer, an emission layer, and a buffer layer and satisfies one of Equation 1 or Equation 2 and Equation 3:
T1(D)≥T1(Mix)+0.3 eV  Equation 1
T1(H)≥T1(Mix)+0.3 eV  Equation 2
T1(Mix)<T1(Buffer)+0.5 eV.  Equation 3

A light-emitting structure includes a substrate, a sub-pixel stack, a cover layer over the sub-pixel stack, and at least one interface between the substrate and the cover layer. The at least one interface has an interface roughness. The sub-pixel stack includes an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stack is over the substrate and configured to emit light including a scattering component caused by the interface roughness and a cavity component separate from the scattering component. A ratio of a luminance of the scattering component to a luminance of the cavity component increases with a viewing angle relative to a display normal. An optical power of the scattering component is a fraction of an optical power of the cavity component.

A light receiving element includes a first electrode, a hole transport region disposed on the first electrode, a light receiving layer disposed on the hole transport region and converting incident light to an electrical signal, an electron transport region disposed on the light receiving layer, and a second electrode disposed on the electron transport region. The light receiving layer includes a p-dopant compound, a donor compound, and an acceptor compound.

An organic electroluminescence device having RGB pixel areas, wherein optical compensation layers (10, 11) are respectively arranged between the red light emitting layer (4) and the first organic functional layer (12) as well as between the green light emitting layer (5) and the first organic functional layer (12), the optical compensation layers (10, 11) are made of a first hole transport material and a second hole transport material, the first hole transport material has a triplet-state energy level≧2.48 eV and a HOMO energy level≦−5.5 eV, the second hole transport material has a HOMO energy level≧−5.5 eV, and the difference between the HOMO energy level of the first hole transport material and the HOMO energy level of the second hole transport material is ≦0.2 eV. Its preparation process is simple, and it can significantly reduce power consumption of the light-emitting device so as to increase light-emitting efficiency.

A light emitting display device, which is applied to a vehicle provided with an airbag device having an airbag accommodated in a folded state and an airbag cover with a shape of covering a vehicle interior of the airbag, the light emitting display device includes: a light emitting display part provided to the airbag cover, the light emitting display part configured to emit light using supplied power; a power feeding device including a power reception coil and a power transmission coil, the power feeding device configured to supply power to the light emitting display part in a non-contact manner, wherein: the power reception coil is provided to the airbag cover in a state of being integrated with the light emitting display part; and the power transmission coil is arranged at a position out of a range, in which the airbag is deployed, when the airbag device is operated.

An electroluminescent device, a manufacturing method thereof, and a display apparatus are provided. The electroluminescent device includes an anode layer, a light emitting layer, a cathode layer, a hole transport layer located between the anode layer and the light emitting layer, and a electron transport layer located between the cathode layer and the light emitting layer. The electroluminescent device further includes: a first interface modification layer between the light emitting layer and one of the hole transport layer and the electron transport layer; wherein an energy level of the first interface modification layer matches an energy level of the light emitting layer and an energy level of the one of the hole transport layer and the electron transport layer.

Provided are an organic photodetector and an electronic apparatus including the same. The organic photodetector includes a first electrode, a second electrode facing the first electrode, an auxiliary layer arranged between the first electrode and the second electrode, and an activation layer arranged between the first electrode and the activation layer. The auxiliary layer includes a compound having a refractive index of about 2.2 or more.

An organic EL element includes a pixel electrode, a light emitting function layer that is formed on the pixel electrode, an electron injection layer formed on the light emitting function layer, and a counter electrode that is formed on the electron injection layer and that has semi-transmissive reflectivity, in which the counter electrode contains a reductive material that reduces material of the electron injection layer and Ag with atomic ratio of 75% or more, and an adsorption layer is formed on the counter electrode.

An organic light-emitting device including an anode electrode, a hole injection layer on the anode electrode, a hole transport layer on the hole injection layer, an emissive layer on the hole transport layer, and a cathode electrode on the emissive layer. A material of the hole injection layer includes a nitrogen-containing compound having a quinoid structure and a nitrogen-containing compound having a benzenoid structure. A ratio of a peak intensity I.sub.B to a peak intensity I.sub.A (I.sub.B/I.sub.A) in a Fourier transform infrared spectroscopy (FTIR) spectrum of the material of the hole injection layer ranges from 1.5 to 2.5, the peak intensity I.sub.A and the peak intensity I.sub.B being further defined.

The present invention provides a novel compound that can improve the luminous efficiency, stability and life span of the element, an organic electronic element using the same, and an electronic device thereof.