Organic light emitting diode
AssigneeSamsung Mobile Display Co., Ltd.
InventorsChoong-Youl Im, Kyung-Jin Yoo, Cheol-Ho Yu
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Abstract
Provided is an organic light emitting diode (OLED) including a substrate, a first electrode, a second electrode, and an organic layer disposed between the first and second electrodes. The first electrode includes an aluminum (Al)-based reflective film and a transparent conductive film that contacts the Al-based reflective film. The Al-based reflective film includes aluminum, a first element and nickel (Ni). In this structure, galvanic corrosion, which occurs due to a potential difference between electrodes, may not occur between the Al-based reflective film 5a and the transparent conductive film 5b. Accordingly, deterioration of the quality of OLED is prevented.
Claims14
An organic light emitting diode (OLED) comprising:
- a substrate;
- a first electrode formed on the substrate;
- a second electrode disposed on the first electrode;
- and
- an organic layer interposed between the first electrode and the second electrode, the first electrode comprising:
- an aluminum (Al)-based reflective film comprising a first element and nickel (Ni);
- and
- a transparent conductive film, the Al-based reflective film being disposed to be closer to the substrate than the transparent conductive film, the Al-based reflective film contacting the transparent conductive film, the first element comprising one selected from the group consisting of lanthanum (La), cerium (Ce), praseodymium (Pr), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), lutetium (Lu), and combinations thereof.
Dependencies are inferred from the claim text.