ORGANIC ELECTROLUMINESCENT APPARATUS AND ELECTRODE THEREFOR
FIG4 is a schematic structural diagram of an organic light-emitting device according to a fourth embodiment of the present disclosure 
As shown in FIG4, when a second electrode 20 laminated with the electrode is a reflective electrode, the light is reflected between the reflective electrode 20 and the transflective conductive layer 11. A microcavity structure is formed by the reflective electrode and the transflective conductive layer to generate a microcavity effect, resulting in occurrence of the destructive interference and constructive interference of the light, and finally only an intensity of light of a preset wavelength is maintained and an intensity of light of other wavelength is reduced. When the microcavity structure is adjusted, the reflectivity and the light transmittance in the transflective conductive layer may be controlled by adjusting the thickness of the transflective conductive layer, thereby adjusting the phase difference generated when the light is reflected in the transflective conductive layer. As shown in FIG4, at the same time, the work function of the first conductive layer 11 is 5.1 eV. The first conductive layer 11 is made of a material having a large work function, enabling to reduce an energy level barrier, and the holes are injected into the organic functional layer 30 easily. As shown in FIG4, when a second electrode 20 laminated with the electrode is a reflective electrode, a microcavity structure is formed by the first conductive layer 11 and the reflective electrode to generate a microcavity effect, resulting in occurrence of the destructive interference and constructive interference of the light, and finally only an intensity of light of a preset wavelength is maintained and an intensity of light of other wavelength is reduced. The second conductive layer 12 is used for improving the injection of the holes, thereby reducing the absorption of the OLED photon energy by a metal surface coupling of the electrode. As shown in FIG4, an organic light-emitting device (OLED) is provided in this embodiment. The OLED in this embodiment is a bottom light-emitting device. A first electrode 10 is a transparent positive electrode made of indium tin oxide. A second electrode 20 is a metal negative electrode, functioning as a reflective electrode and made of LiF/Al. In this embodiment, as shown in FIG4, the first electrode 10 includes a first conductive layer 11 and a second conductive layer 12 and a third conductive layer 13 laminated at both opposite sides of the first conductive layer 11.
schematic structural diagram
30
organic functional layer
12
second conductive layer
11
conductive layer
2
is
20
electrode
40
substrate
10
first electrode
13
third conductive layer
['1. An organic light-emitting device, comprising a first electrode, an organic functional layer and a second electrode sequentially laminated on a substrate,  characterized in that  the first electrode has a first side and a second side opposite to the first side, and comprises: a first conductive layer; and a second conductive layer, laminated at the first side of the first conductive layer, the second conductive layer being a transparent conductive layer.', '2. The organic light-emitting device according to claim 1,  characterized in that  the first electrode further comprises a third conductive layer laminated at the second side of the first conductive layer; and the third conductive layer is a transparent conductive layer.']