Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2005-08-17
2009-06-16
Roy, Sikha (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S501000, C313S504000, C313S512000, C257S040000, C257S079000, C428S690000, C428S917000
Reexamination Certificate
active
07548020
ABSTRACT:
An organic EL display device having a supporting substrate; and an organic EL element including an organic luminescent medium sandwiched between a lower electrode and an upper electrode thereon. Various relationships are indicted among the refractive indices of the various elements of the organic EL display device. In such arrangement, a large quantity of EL emission can be taken to the outside.
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Eida Mitsuru
Tomoike Kazuhiro
Idemitsu Kosan Co. Ltd.
Roy Sikha
Steptoe & Johnson LLP
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