Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2005-12-08
2009-08-25
Williams, Joseph L (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S112000
Reexamination Certificate
active
07579775
ABSTRACT:
An electroluminescence (EL) display device with improved external light coupling efficiency and brightness that can be easily manufactured and a method of manufacturing the EL display device are disclosed. In one embodiment, the EL display device includes a substrate, a first electrode formed above the substrate, a second electrode formed above the first electrode and facing the first electrode, a first intermediate layer including a luminescence layer and disposed between the first and second electrodes, a color converting layer disposed on top of the second electrode and a diffraction grating disposed between the second electrode and the color converting layer.
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Ahn Ji-Hoon
Cho Sang-Hwan
Ha Jae-Heung
Kim Yoon-Chang
Lee Joon-Gu
Knobbe Martens Olson & Bear LLP
Samsung Mobile Display Co., Ltd.
Williams Joseph L
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