Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2011-03-15
2011-03-15
Patel, Ashok (Department: 2889)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S506000
Reexamination Certificate
active
07906901
ABSTRACT:
An organic EL device having excellent light-emitting properties, particularly a long lifetime, by controlling a balance between a hole and an electron, which is required for light-emitting in the organic EL device, includes a structure in which an anode, an organic layer including a light-emitting layer, and a cathode are stacked on a substrate in this order, wherein the light-emitting layer includes two or more different light-emitting materials, and a difference in photoluminescence peak wavelength between the two or more different light-emitting materials is about 50 nm or less.
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Fujita Yoshimasa
Saeki Yumiko
Keating & Bennett LLP
Patel Ashok
Sharp Kabushiki Kaisha
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