Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2006-07-11
2006-07-11
Glick, Edward J. (Department: 2882)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S506000, C428S690000, C349S069000
Reexamination Certificate
active
07075227
ABSTRACT:
An organic electroluminescence display device is provided. The OEL device includes a substrate, a first electrode layer, a second electrode layer, an organic functional layer and at least one electrochromic medium layer. The first electrode layer is disposed on the substrate, the second electrode layer is disposed over the first electrode layer, and the organic functional layer and the electrochromic medium layer are disposed between the first electrode layer and the second electrode layer. Accordingly, the electrochromic medium layer is provided as a selective light valve to improve the reflection of the external light, and thus the contrast ratio of the organic electroluminescence display device is enhanced.
REFERENCES:
patent: 5442478 (1995-08-01), Lampert et al.
patent: 5444330 (1995-08-01), Leventis et al.
patent: 6917159 (2005-07-01), Tyan et al.
patent: 7002294 (2006-02-01), Forrest et al.
Chang Yih
Lu Tien-Rong
Glick Edward J.
J.C. Patents
Keaney Elizabeth
RiTdisplay Corporation
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