Abstract: A light emitting device includes: a first electrode; a second electrode overlapping the first electrode; m light emitting units between the first electrode and the second electrode; and m-1 charge generating layers between adjacent light emitting units, wherein the charge generating layer includes: an n-type charge generating layer and a p-type charge generating layer; at least one of a plurality of n-type charge generating layers includes a dopant including an alkali metal, and at least one of a plurality of n-type charge generating layers includes a dopant including a lanthanum metal; contents of the alkali metal and the lanthanum metal doped in the n-type charge generating layer are different from each other; and the m is a natural number of greater than or equal to 3.

Abstract: A display device includes: a first base substrate which comprises a plurality of pixels; a pixel electrode on the first base substrate in each of the pixels and comprises a reflective film; an organic layer on the pixel electrode; and a common electrode on the organic layer, wherein the pixel electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm.

Abstract: A display device includes: a first base substrate which comprises a plurality of pixels; a pixel electrode on the first base substrate in each of the pixels and comprises a reflective film; an organic layer on the pixel electrode; and a common electrode on the organic layer, wherein the pixel electrode has a reflectance of 80% or more for light in a first wavelength range of 420 nm to 470 nm.

Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor (TFT) on the substrate, an OLED connected to the TFT and configured to emit white light, and a capping layer on the OLED. The capping layer includes a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer that are sequentially stacked.

Abstract: An organic light emitting display includes: a substrate; a first electrode on the substrate; an organic light emitting layer on the first electrode; a second electrode formed on the organic light emitting layer; a non-resonance reflection inducing layer on the second electrode; and a capping layer on the non-resonance reflection inducing layer.

Abstract: An organic light emitting diode display includes: a first electrode positioned over the substrate; an organic emission layer positioned over the first electrode; a second electrode positioned over the organic emission layer; a refractive layer positioned over the second electrode; and a light transflective metal layer positioned over the refractive layer.

Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor (TFT) on the substrate, an OLED connected to the TFT and configured to emit white light, and a capping layer on the OLED. The capping layer includes a first high refractive index layer, a first low refractive index layer, a second high refractive index layer, and a second low refractive index layer that are sequentially stacked.

Abstract: An organic light emitting display includes: a substrate; a first electrode on the substrate; an organic light emitting layer on the first electrode; a second electrode formed on the organic light emitting layer; a non-resonance reflection inducing layer on the second electrode; and a capping layer on the non-resonance reflection inducing layer.

Abstract: An organic light emitting display includes: a substrate; a first electrode on the substrate; an organic light emitting layer on the first electrode; a second electrode formed on the organic light emitting layer; a non-resonance reflection inducing layer on the second electrode; and a capping layer on the non-resonance reflection inducing layer.

Abstract: An organic light emitting diode display includes: a first electrode positioned over the substrate; an organic emission layer positioned over the first electrode; a second electrode positioned over the organic emission layer; a refractive layer positioned over the second electrode; and a light transflective metal layer positioned over the refractive layer.

Abstract: An organic light emitting display includes: a substrate; a first electrode on the substrate; an organic light emitting layer on the first electrode; a second electrode formed on the organic light emitting layer; a non-resonance reflection inducing layer on the second electrode; and a capping layer on the non-resonance reflection inducing layer.

Abstract: An apparatus for oxygen sensing is provided. The apparatus for oxygen sensing includes: a header part to generate interference wave to light generated in a light source by the principle of fiber Fabry-Perot interferometer; and an optical spectrum analyzer to decide existence of oxygen based on change of spectrum periodicity of the above interference wave, in which the header part includes a sensing material of which effective refractive index changes by combination with the oxygen and the above interference wave changes its spectrum periodicity depending on change of effective refractive index of the above sensing material.