| 摘要 |
<p>OLED devices, suitable for top and bottom emitters is disclosed. For the top emitting OLED it includes a transparent substrate; a reflective, weakly absorbing, and conductive anode layer including a metal or metal alloy or both formed over the substrate; a hole-injection layer; a plurality of organic layers formed over the hole-injection layer and including an emissive layer having electroluminescent material and an electron transport layer disposed over the emissive layer; a reflective and conductive cathode including a metal or metal alloy or both provided over the electron transport layer; and the transparency and reflectivity of the anode structure, reflectivity of cathode structure, and the thickness of the organic layers between the electrodes being selected to change the internal reflection of light to thereby improve the emission and obtain luminance through-substrate exceeding that of an optimized control device not having the reflective, weakly absorbing, and conductive anode. <IMAGE></p> |
