MANUFACTURING METHOD OF DISPLAY DEVICE

Abstract

A highly functional and reliable display device with lower power consumption and higher light-emitting efficiency is provided. A light-emitting material is irradiated with light; the light-emitting material irradiated with light is dispersed in a solution containing a binder, and a solution containing the light-emitting material irradiated with light and the binder is formed; a first electrode layer is formed; the solution is applied on the first electrode layer, and a light-emitting layer containing the light-emitting material irradiated with light and the binder is formed; and a second electrode layer is formed over the light-emitting layer, and a light-emitting element is manufactured. An insulating layer may be provided between the first electrode layer and the light-emitting layer or between the second electrode layer and the light-emitting layer.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings:

FIGS. 1A to 1D are views each explaining a manufacturing method of a light-emitting element of the present invention;

FIGS. 2A to 2C are views each explaining a light-emitting element of the present invention;

FIGS. 3A and 3B are views each explaining a light-emitting element of the present invention;

FIGS. 4A to 4C are views each explaining a display device of the present invention;

FIGS. 5A and 5B are views each explaining a display device of the present invention;

FIGS. 6A and 6B are views each explaining a display device of the present invention;

FIGS. 7A and 7B are views each explaining a display device of the present invention;

FIG. 8 is a view explaining a display device of the present invention;

FIG. 9 is a view explaining a display device of the present invention;

FIG. 10 is a view explaining a display device of the present invention;

FIG. 11 is a view explaining a display device of the present invention;

FIGS. 12A and 12B are views each showing an electronic device to which the present invention is applied;

FIGS. 13A and 13B are a view and a diagram each showing an electronic device to which the present invention is applied;

FIG. 14 is a view showing an electronic device to which the present invention is applied;

FIGS. 15A to 15E are views each showing an electronic device to which the present invention is applied;

FIGS. 16A to 16C are top views of a display device of the present invention;

FIGS. 17A and 17B are top views of a display device of the present invention;

FIG. 18 is a diagram explaining an electronic device to which the present invention is applied; and

FIG. 19 is a view explaining a display device of the present invention.

Claims

1. A method for manufacturing a light emitting device, comprising the steps of: irradiating a light-emitting material with light;dispersing the light-emitting material irradiated with light in a solution containing a binder;disposing the solution containing the light-emitting material irradiated with light and the binder on a first electrode layer and forming a light-emitting layer containing the light-emitting material irradiated with light and the binder; andforming a second electrode layer over the light-emitting layer.

2. The method for manufacturing a light emitting device according to claim 1, wherein an insulating layer is formed between the first electrode layer and the light-emitting layer.

3. The method for manufacturing a light emitting device according to claim 1, wherein the solution is applied on the first electrode layer by a printing method.

4. The method for manufacturing a light emitting device according to claim 1, wherein the light-emitting material contains a host material and an impurity element.

5. The method for manufacturing a light emitting device according to claim 1, wherein the binder is formed by using an organic resin.

6. A method for manufacturing a light emitting device, comprising the steps of: irradiating a light-emitting material in a particle state with a laser beam;dispersing the light-emitting material in a particle state irradiated with the laser beam in a solution containing a binder;disposing the solution containing the light-emitting material in a particle state irradiated with the laser beam and the binder on a first electrode layer and forming a light-emitting layer containing the light-emitting material in a particle state irradiated with the laser beam and the binder; andforming a second electrode layer over the light-emitting layer.

7. The method for manufacturing a light emitting device according to claim 6, wherein an insulating layer is formed between the first electrode layer and the light-emitting layer.

8. The method for manufacturing a light emitting device according to claim 6, wherein the solution is applied on the first electrode layer by a printing method.

9. The method for manufacturing a light emitting device according to claim 6, wherein the light-emitting material contains a host material and an impurity element.

10. The method for manufacturing a light emitting device according to claim 6, wherein the binder is formed by using an organic resin.

11. A method for manufacturing a light emitting device, comprising the steps of: irradiating a light-emitting material with a laser beam;dispersing the light-emitting material irradiated with the laser beam in a solution containing a binder;disposing the solution containing the light-emitting material irradiated with the laser beam and the binder on a first electrode layer, performing baking, and forming a light-emitting layer containing the light-emitting material irradiated with the laser beam and the binder; andforming a second electrode layer over the light-emitting layer.

12. The method for manufacturing a light emitting device according to claim 11, wherein an insulating layer is formed between the first electrode layer and the light-emitting layer.

13. The method for manufacturing a light emitting device according to claim 11, wherein the solution is applied on the first electrode layer by a printing method.

14. The method for manufacturing a light emitting device according to claim 11, wherein the light-emitting material contains a host material and an impurity element.

15. The method for manufacturing a light emitting device according to claim 11, wherein the binder is formed by using an organic resin.

16. A method for manufacturing a light emitting device, comprising the steps of: irradiating a light-emitting material in a particle state with a laser beam;dispersing the light-emitting material in a particle state irradiated with the laser beam in a solution containing a binder;disposing the solution containing the light-emitting material in a particle state irradiated with the laser beam and the binder on a first electrode layer, performing baking, and forming a light-emitting layer containing the light-emitting material in a particle state irradiated with the laser beam and the binder; andforming a second electrode layer over the light-emitting layer.

17. The method for manufacturing a light emitting device according to claim 16, wherein an insulating layer is formed between the first electrode layer and the light-emitting layer.

18. The method for manufacturing a light emitting device according to claim 16, wherein the solution is applied on the first electrode layer by a printing method.

19. The method for manufacturing a light emitting device according to claim 16, wherein the light-emitting material contains a host material and an impurity element.

20. The method for manufacturing a light emitting device according to claim 16, wherein the binder is formed by using an organic resin.