Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – Plural light emitting devices
Reexamination Certificate
2008-07-15
2008-07-15
Pert, Evan (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
Plural light emitting devices
C257S088000, C257SE51019, C257SE51022, C438S035000, C313S506000
Reexamination Certificate
active
07399993
ABSTRACT:
A display unit and method of fabricating same are provided. The display unit includes a plurality of organic electroluminescent devices, each including an organic layer portion including at least a hole-transport layer and a luminescent layer which are stacked each other, and two electrodes sandwiching the organic layer portion. The luminescent layers of the individual organic electroluminescent devices have different thicknesses. The luminescent layer in each organic electroluminescent device contains an organic material having substantially the same HOMO level as that of a hole-transporting material constituting the hole-transport layer, the content of the organic material being set according to the thickness of the luminescent layer.
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Bell Boyd & Lloyd LLP
Mandala Jr. Victor A.
Pert Evan
Sony Corporation
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