Method for manufacturing luminous particle, method for manufacturing material liquid for formation of luminous element, method for manufacturing organic el display device, luminous particle, material liquid, organic el display device, and method for manufacturing organic compound particle formation of charge transfer element, method for manufacturing material liquid for formation of charge transfer element, and organic compound particle

• US 20090102365A1
• Filed: 09/02/2008
• Published: 04/23/2009
• Est. Priority Date: 08/30/2007
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Takemoto, Kiyohiko, Kanaya, Miharu
• Application Number:
  US12/231,345
• Publication Number:
  US 20090102365A1
• Time in Patent Office: Days
• US Class Current: 313/504
• CPC Class Codes: B82Y 20/00 Nanooptics, e.g. quantum optics or photonic crystals
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: H05B 33/10 Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 2102/331 Nanoparticles used in non-emissive layers, e.g. in packaging layer
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/865 comprising light absorbing layers, e.g. light-blocking layers
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 59/8792 comprising light absorbing layers, e.g. black layers
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/135 using ink-jet printing
• CPC Class Codes: H10K 71/15 characterised by the solvent used
• CPC Class Codes: H10K 71/40 Thermal treatment, e.g. annealing in the presence of a solvent vapour

Abstract

A method for manufacturing luminous element particles, comprising: forming a luminous element layer, containing a release layer and luminous organic compound layer, on at least one side of a base material; and micro-fragmenting the luminous element layer after separating the same from the one side of the base material.

Claims

1. A method for manufacturing luminous element particles, comprising:

forming a luminous element layer, containing a release layer and luminous organic compound layer, on at least one side of a base material; and

micro-fragmenting the luminous element layer after separating the same from the one side of the base material.

2. The method for manufacturing luminous element particles according to claim 1, wherein the release layer is a wax layer.

3. The method for manufacturing luminous element particles according to claim 1, wherein, the separation and the micro-fragmentation are carried out by applying ultrasonic waves to the luminous element layer by.

11. A method for manufacturing an organic EL display device, comprising:

forming a luminous layer using luminous element particles formed according to the method for manufacturing luminous element particles according to claim 1.

4. A method for manufacturing a material liquid for forming a luminous element, comprising:

forming a luminous element layer, containing a release layer and a luminous organic compound layer, on at least one side of a base material;

forming luminous element particles by micro-fragmenting the luminous element layer after separating the same from the one side of the base material; and

preparing a material liquid for forming a luminous element by adding a second organic solvent to the luminous element particles.

5. The method for manufacturing a material liquid for forming a luminous element according to claim 4, wherein the release layer is a wax layer.

6. A method for manufacturing an organic EL display device, comprising:

forming a luminous element layer, containing a release layer and a luminous organic compound layer, on at least one side of a base material;

forming luminous element particles by micro-fragmenting the luminous element layer after separating the same from the one side of the base material;

preparing a material liquid by adding a second organic solvent to the luminous element particles; and

forming a luminous layer by dropping the material liquid onto a substrate and solidifying thereon.

7. The method for manufacturing an organic EL display device according to claim 6, wherein, the micro-fragmentation is carried out while stripping off the luminous element layer.

9. The method for manufacturing an organic EL display device according to claim 6, wherein, the formation of the luminous layer is carried out by discharging the material liquid onto a desired region on the substrate by a liquid droplet jetting method, followed by solidifying the material liquid on the substrate.

10. The method for manufacturing an organic EL display device according to claim 6, wherein the release layer is a wax layer.

8. A method for manufacturing an organic EL display device, comprising:

forming a luminous element layer, containing a release layer and a luminous organic compound layer, on at least one side of a sheet-like base material;

forming luminous element particles by immersing the sheet-like base material in a first organic solvent and occasionally separating a portion of the luminous organic compound layer from the release layer and micro-fragmenting the same;

preparing a material liquid using the first organic solvent containing the luminous element particles; and

forming a luminous layer by dropping the material liquid onto a substrate and solidifying thereon.

12. Luminous element particles formed by micro-fragmenting a Luminous element layer, containing a release layer and a luminous organic compound layer, after separating the same from a base material on which the luminous element layer is formed, wherein

each of the particles is in the form of leaves.

13. The luminous element particles according to claim 12, wherein the release layer is a wax layer.

14. A material liquid containing the luminous element particles according to claim 12.

15. An organic EL display device having a luminous layer formed by solidifying the material liquid according to claim 14.

16. The organic EL display device according to claim 15, wherein the molecular weight of the luminous organic compound in the luminous layer is 1,000 or less.

17. A method for manufacturing organic compound particles for forming a charge transfer element, comprising:

forming a laminate layer, containing a release layer and an organic compound layer having charge transferability, on at least one side of a base material; and

micro-fragmenting the laminate layer after separating the same from the one side of the base material.

18. The method for manufacturing organic compound particles for forming a charge transfer element according to claim 17, wherein the micro fragmentation is carried out by applying ultrasonic waves to the laminate layer.

19. The method for manufacturing organic compound particles for forming a charge transfer element according to claim 17, wherein the release layer is a wax layer.

20. A method for manufacturing a material liquid for forming a charge transfer element, comprising:

forming a laminate layer, containing a release layer and an organic compound layer having charge transferability, on at least one side of a base material;

forming organic compound particles by micro-fragmenting the laminate layer after separating the same from the one side of the base material; and

preparing a material liquid for forming a charge transfer element by adding a second solvent to the organic compound particles.

21. The method for manufacturing a material liquid for forming a charge transfer element according to claim 20, wherein the micro-fragmentation is carried out while stripping off the laminate layer.

22. The method for manufacturing a material liquid for forming a charge transfer element according to claim 20, wherein the release layer is a wax layer.

27. A method for manufacturing an organic EL display device, comprising:

forming a charge transfer layer using a material liquid formed according to the method for manufacturing a material liquid for forming a charge transfer element according to claim 20.

23. A method for manufacturing an organic EL display device, comprising:

forming a laminate layer, containing a release layer and an organic compound layer having charge transferability, on at least one side of a base material;

forming organic compound particles by micro-fragmenting the laminate layer after separating the same from the one side of the base material;

preparing a material liquid by adding a second organic solvent to the organic compound particles; and

forming a charge transfer layer by dropping the material liquid onto a substrate and solidifying thereon.

25. The method for manufacturing an organic EL display device according to claim 23, wherein the formation of the charge transfer layer is carried out by discharging the material liquid onto a desired region on the substrate by a liquid droplet jetting method, followed by solidifying the material liquid on the substrate.

26. The method for manufacturing an organic EL display device according to claim 23, wherein the release layer is a wax layer.

24. A method for manufacturing an organic EL display device, comprising:

forming a laminate layer, containing a release layer and an organic compound layer having charge transferability, on at least one side of a sheet-like base material;

forming organic compound particles by immersing the sheet-like base material in a first organic solvent and occasionally separating a portion of the organic compound layer from the release layer and micro-fragmenting the same;

preparing a material liquid using the first organic solvent containing the organic compound particles; and

forming a charge transfer layer by dropping the material liquid onto a substrate and solidifying thereon.

28. Organic compound particles formed by micro-fragmenting a Laminate layer, containing a release layer and an organic compound layer having charge transferability, after separating the same from a base material on which the laminate layer is formed, wherein

each of the particles is in the form of leaves.

29. The organic compound particles according to claim 28, wherein the release layer is a wax layer.

30. A material liquid containing the organic compound particles according to claim 28.

31. An organic EL display device having a charge transfer layer formed by solidifying the material liquid according to claim 30.

32. The organic EL display device according to claim 31, wherein the molecular weight of the organic compound in the charge transfer layer is 1,000 or less.