Organic light-emitting device and display apparatus

1. An organic light-emitting device comprising:

a plurality of light emitters arranged in two dimensions along a surface of a substrate, each light emitter of the plurality of light emitters comprising:

a first electrode disposed above the substrate;

a first charge injection/transport layer disposed above the first electrode;

an organic light-emitting layer disposed above the first charge injection/transport layer;

an intermediate layer disposed above the organic light-emitting layer;

a second charge injection/transport layer disposed on the intermediate layer; and

a second electrode disposed above the second charge injection/transport layer,

wherein

the intermediate layer includes a fluoride of an alkali metal or a fluoride of an alkaline earth metal,

the second charge injection/transport layer includes an alkali metal or an alkaline earth metal,

of the first electrode and the second electrode, one electrode is light reflective and an other electrode is light transmissive,

the plurality of light emitters include a first light emitter and a second light emitter that emits a different color of light than the first light emitter,

of the first charge injection/transport layer and the second charge injection/transport layer, one charge injection/transport layer is disposed between the organic light-emitting layer and the one electrode, and thickness of the one charge injection/transport layer in the first light emitter is different from thickness of the one charge injection/transport layer in the second light emitter,

the alkali metal or alkaline earth metal of the fluoride included in the intermediate layer is a first metal and the alkali metal or alkaline earth metal included in the second charge injection/transport layer is a second metal, and

the second metal has a property of cleaving a bond between the first metal and fluorine in the fluoride of the first metal.

2. The organic light-emitting device of claim 1 , wherein

the second charge injection/transport layer is formed from an organic material doped with the second metal.

3. The organic light-emitting device of claim 1 , wherein

the second charge injection/transport layer is formed from a first layer made from the second metal and a second layer that includes an organic material, and

the first layer is disposed in contact with the intermediate layer.

4. The organic light-emitting device of claim 3 , wherein

the second layer is formed from the organic material doped with an alkali metal or alkaline earth metal.

5. The organic light-emitting device of claim 4 , wherein

the alkali metal or alkaline earth metal used to dope the organic material in the second layer is the second metal.

6. The organic light-emitting device of claim 3 , wherein

the organic material in the second layer does not include a metal dopant.

7. An organic light-emitting device comprising:

a plurality of light emitters arranged in two dimensions along a surface of a substrate, each light emitter of the plurality of light emitters comprising:

a first electrode disposed above the substrate;

a first charge injection/transport layer disposed above the first electrode;

an organic light-emitting layer disposed above the first charge injection/transport layer;

an intermediate layer disposed above the organic light-emitting layer;

a second charge injection/transport layer disposed on the intermediate layer; and

a second electrode disposed above the second charge injection/transport layer,

wherein

the intermediate layer includes a fluoride of an alkali metal or a fluoride of an alkaline earth metal,

the second charge injection/transport layer includes an alkali metal or an alkaline earth metal,

of the first electrode and the second electrode, one electrode is light reflective and an other electrode is light transmissive,

the plurality of light emitters include a first light emitter and a second light emitter that emits a different color of light than the first light emitter,

of the first charge injection/transport layer and the second charge injection/transport layer, one charge injection/transport layer is disposed between the organic light-emitting layer and the one electrode, and thickness of the one charge injection/transport layer in the first light emitter is different from thickness of the one charge injection/transport layer in the second light emitter,

the first electrode is an anode,

the second electrode is a cathode,

the first charge injection/transport layer is a hole injection layer, and

the second charge injection/transport layer is an electron transport layer.

8. The organic light-emitting device of claim 7 , wherein

the first electrode is light reflective, and

the first charge injection/transport layer is formed from an electrically-conductive organic material, and thickness of the first charge injection/transport layer in the first light emitter is different from thickness of the first charge injection/transport layer in the second light emitter.

9. An organic light-emitting device comprising:

a plurality of light emitters arranged in two dimensions along a surface of a substrate, each light emitter of the plurality of light emitters comprising:

a first electrode disposed above the substrate;

a first charge injection/transport layer disposed above the first electrode;

an organic light-emitting layer disposed above the first charge injection/transport layer;

an intermediate layer disposed above the organic light-emitting layer;

a second charge injection/transport layer disposed on the intermediate layer; and

a second electrode disposed above the second charge injection/transport layer,

wherein

the intermediate layer includes a fluoride of an alkali metal or a fluoride of an alkaline earth metal,

the second charge injection/transport layer includes an alkali metal or an alkaline earth metal,

of the first electrode and the second electrode, one electrode is light reflective and an other electrode is light transmissive,

the plurality of light emitters include a first light emitter and a second light emitter that emits a different color of light than the first light emitter,

of the first charge injection/transport layer and the second charge injection/transport layer, one charge injection/transport layer is disposed between the organic light-emitting layer and the one electrode, and thickness of the one charge injection/transport layer in the first light emitter is different from thickness of the one charge injection/transport layer in the second light emitter,

the first electrode is a cathode,

the second electrode is an anode,

the first charge injection/transport layer is an electron transport layer, and

the second charge injection/transport layer is a hole injection layer.

10. The organic light-emitting device of claim 9 , wherein

the first electrode is light reflective, and

the first charge injection/transport layer is formed from a π-electron system organic material including an alkali metal or an alkaline earth metal.

11. The organic light-emitting device of claim 9 , wherein

the second electrode is light reflective, and

the second charge injection/transport layer is formed from an electrically-conductive organic material.