ORGANIC COMPOUND FOR LIGHT-EMITTING DEVICE, LIGHT-EMITTING DEVICE, AND IMAGE DISPLAY APPARATUS

Abstract

A light-emitting device is provided which uses an organic compound to emit light with high luminance and extremely high efficiency. The organic compound is composed of a metal complex having monovalent bidentate ligands. The light-emitting device includes a pair of electrodes which are an anode and a cathode, and plural organic compound layers interposed between the electrodes, in which at least one layer of the organic compound layers contains a metal complex represented by the following structural formula. The light-emitting device is an organic electroluminescent device using the light-emitting device in which the layer including the organic compound is a light-emitting layer.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an example of the organic EL device of the present invention.

FIG. 2 shows another example of the organic EL device of the present invention.

FIG. 3 shows another example of the organic EL device of the present invention.

FIG. 4 is a schematical view of a passive type of organic EL device.

FIG. 5 shows a pixel circuit of a panel.

FIG. 6 is a schematic view illustrating an example of a TFT substrate to be used in the present invention.

FIG. 7 shows another example of the organic EL device of the present invention.

Claims

1. An organic compound for a light-emitting device, comprising a metal complex having monovalent ligands each having a partial structure which is represented by the following general formula (1):

2. An organic compound for a light-emitting device according to claim 1, wherein the metal complex comprises in its molecule a central metal of Ir and a skeleton represented by the general formula (1) in claim 1.

3. An organic compound for a light-emitting device, comprising a metal complex represented by the general formula (2): MLmL′n   (2)

4. A light-emitting device, comprising: a pair of electrodes, and a plurality of organic compound layers which are interposed between the electrodes,wherein at least one layer of the organic compound layers contains at least one organic compound according to claim 1.

5. A light-emitting device, comprising: a pair of electrodes, anda plurality of organic compound layers which are interposed between the electrodes,wherein at least one layer of the organic compound layers contains at least one organic compound according to claim 2.

6. A light-emitting device according to claim 4, wherein at least one of the organic compound layers is a light-emitting layer.

7. A light-emitting device according to claim 5, wherein at least one of the organic compound layers is a light-emitting layer.