Light-emitting element, display device, and electronic...

Details Light-emitting element, display device, and electronic... Light-emitting element, display device, and electronic...

2007-03-16

2009-12-08

Dang, Trung (Department: 2892)

Active solid-state devices (e.g., transistors, solid-state diode

Semiconductor is an oxide of a metal or copper sulfide

C257SE33019

Reexamination Certificate

active

07629608

ABSTRACT:
An object is to provide an inorganic light-emitting element capable of low-voltage driving. Moreover, another object is to provide a display device and an electronic appliance with low power consumption by using this light-emitting element. The light-emitting element includes a layer containing a light-emitting substance and an electron supplying layer which is in contact with the layer containing a light-emitting substance, between a first electrode and a second electrode. The layer containing a light-emitting substance includes at least an impurity element and a base material which is a sulfide, an oxide, or a nitride. The electron supplying layer includes a substance with a lower work function than that of the base material.

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International Search Report (Application No. PCT/JP2007/055162), dated May 15, 2007, 3 pages.
Written Opinion (Application No. PCT/JP2007/055162), dated May 15, 2007, 4 pages.

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