Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2005-08-10
2009-12-22
Menz, Douglas M (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257SE51018, C257SE51026, C428S690000, C252S301330, C313S504000
Reexamination Certificate
active
07635858
ABSTRACT:
An OLED comprises an anode, a hole source, an emissive region, an electron source and a cathode, wherein the materials for the electron source and the hole source are chosen such that the electrical conductivity of these charge carrier sources is greater than the electrical conductivity of the emissive region. In particular, the electrical conductivity of the source layers is between 10−8to 102S/cm. Furthermore, one or both of the hole source and the electron source are made substantially of one or more inorganic materials. The emissive region can have one or more layers of organic material. The materials for the emissive region are insulators. The cathode can be made of a metal such as Mg:Ag and Al, and the anode is made of ITO or the like. The electrical conductivity of the cathode and the anode is significantly higher than 102S/cm.
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AU Optronics Corporation
Menz Douglas M
Such Matthew W
Ware Fressola Van Der Sluys & Adolphson LLP
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