Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2004-07-22
2010-10-19
Patel, Nimeshkumar D (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S506000
Reexamination Certificate
active
07816857
ABSTRACT:
An organic light emitting device is disclosed. In one embodiment, the organic light emitting device includes red (R), green (G) and blue (B) lower electrodes formed on a substrate. R, G, B organic thin film layers are formed on the R, G, B lower electrodes, respectively. Additionally, an upper single or multilayer electrode is formed over the substrate. Portions of the upper electrode that correspond to the R, G, B organic thin film layers, respectively, are formed to each have a different thickness. Various methods for forming the upper electrode using a fine metal mask, a halftone mask, and single and multiple photolithography processes are also disclosed.
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Ryu Seoung-Yoon
Song Seung-Yong
H.C. Park & Associates PLC
Patel Nimeshkumar D
Raabe Christopher M
Samsung Mobile Display Co., Ltd.
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