Visible image receiving material, conductive pattern material and organic electroluminescence element, using member having surface hydrophilicity

• US 6,878,470 B2
• Filed: 02/07/2003
• Issued: 04/12/2005
• Est. Priority Date: 02/08/2002
• Status: Expired due to Fees

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Nakayama, Takao, Kawamura, Koichi, Kano, Takeyoshi, Takahashi, Miki
• Primary Examiner(s): GARRETT, DAWN L
• Application Number:
  US10/359,741
• Publication Number:
  US 20030230967A1
• Time in Patent Office: 795 Days
• Field of Search: 428/690, 428/32.1, 428/195.1, 428/917, 313/483, 430/315, 430/319, 430/320, 427/466, 347/2, 347/105
• US Class Current: 428/690
• CPC Class Codes: B41M 3/006 Patterns of chemical products used for a specific purpose, e.g. pesticides, perfumes, adhesive patterns; use of microencapsulated material; Printing on smoking articles
• CPC Class Codes: B41M 5/506 Intermediate layers
• CPC Class Codes: B41M 5/52 Macromolecular coatings
• CPC Class Codes: C09D 11/101 Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
• CPC Class Codes: G03F 7/0007 Filters, e.g. additive colour filters; Components for display devices
• CPC Class Codes: H05K 2203/1168 Graft-polymerization
• CPC Class Codes: H05K 3/12 using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
• CPC Class Codes: H05K 3/38 Improvement of the adhesion between the insulating substrate and the metal
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 71/13 using printing techniques, e.g. ink-jet printing or screen printing
• CPC Class Codes: H10K 71/60 Forming conductive regions or layers, e.g. electrodes
• CPC Class Codes: Y10S 428/917 Electroluminescent
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

The invention includes a visible image receiving material, a conductive pattern material and an organic electroluminescence element, to which a member having a hydrophilic graft chain on a surface thereof through attention to the strong hydrophilicity of the graft chain.

Claims

1. An organic electroluminescence element comprising in the following order

a substrate having a first electrode formed thereon,

a hydrophilic surface having a hydrophilic graft chain provided on the substrate,

an organic light emitting layer or plural organic compound layers including an organic light emitting layer locally provided on the hydrophilic surface, and

a second electrode provided on the organic light emitting layer or the plural organic compound layers including an organic light emitting layer.

2. An organic electroluminescence element according to claim 1, wherein the hydrophilic surface comprises the hydrophilic graft chain bonded to a surface of the first electrode or a surface of an intermediate layer provided on the first electrode.

3. An organic electroluminescence element according to claim 1, wherein the hydrophilic graft chain is bonded to a surface of the first electrode or a surface of an intermediate layer provided on the first electrode at an end of the graft chain, and a graft portion exhibiting hydrophilicity is substantially not crosslinked.

4. An organic electroluminescence element according to claim 1, wherein the organic compound layer is formed by discharging a composition in a fluid form for forming the organic compound layer from an ink-jet recording head in a pattern using an ink-jet recording apparatus, to locally apply the composition to the hydrophilic surface.

16. The element of claim 1 wherein the hydrophilic surface is provided in direct physical contact with the substrate and the first electrode.

5. An organic electroluminescence element comprising in the following order

a substrate having a first electrode formed thereon,

at least one organic compound layer including an organic light emitting layer, wherein the at least one organic compound is provided on a hydrophilic region after the hydrophilic region is formed on the first electrode by locally applying energy to a surface which is formed on the substrate and is capable of forming a hydrophilic/hydrophobic region by application of energy, and

a second electrode provided on the organic compound layer.

6. An organic electroluminescence element according to claim 5, wherein the hydrophilic region is formed by application of heat, supply of an acid, or irradiation of a radiation ray on a surface having a polymer compound including a functional group whose hydrophilicity/hydrophobicity is changed by heat, an acid, or a radiation ray.

7. An organic electroluminescence element according to claim 6, wherein the functional group whose hydrophilicity/hydrophobicity is changed is at least one selected from the group consisting of a secondary alkylsulfonate ester group, a tertiary carboxylate ester group and an alkoxyalkyl ester group.

8. An organic electroluminescence element according to claim 5, wherein the hydrophilic region is formed by irradiation of a radiation ray on a surface having been in contact with a hydrophilic compound having a polymerizable group.

9. An organic electroluminescence element according to claim 8, wherein the hydrophilic region is formed on a layer containing a compound exerting a polymerization initiating function which layer is provided on the first electrode.

10. An organic electroluminescence element according to claim 5, wherein the organic compound layer is formed by discharging a composition in a fluid form for forming the organic compound layer from an ink-jet recording head in a pattern using an ink-jet recording apparatus, to locally apply the composition to the hydrophilic region.

17. The element of claim 5 wherein the hydrophilic/hydrophobic region is provided in direct physical contact with the substrate and the first electrode.

11. A method for producing an organic electroluminescence element, the method comprising:

forming a first electrode on a substrate,

forming a hydrophilic surface having a hydrophilic graft chain on the substrate having the first electrode formed thereon,

forming an organic light emitting layer or plural organic compound layers including an organic light emitting layer locally provided on the hydrophilic surface, and

forming a second electrode on the organic light emitting layer or the plural organic compound layers including an organic light emitting layer.

12. The method according to claim 11, wherein the organic compound layer is formed by discharging a composition in a fluid form for forming the organic compound layer from an ink-jet recording head in a pattern using an ink-jet recording apparatus, to locally apply the composition to the hydrophilic surface.

13. A method for producing an organic electroluminescence element, the method comprising:

forming a first electrode on a substrate,

forming a surface having a polymer group having a functional group whose hydrophilicity/hydrophobicity is changed by heat, an acid, or a radiation ray on the substrate having the first electrode formed thereon, and applying heat, an acid or irradiation to the surface to change hydrophilicity and hydrophobicity of the surface, so as to form a hydrophilic region,

forming at least one organic compound layer including an organic light emitting layer on the hydrophilic region, and

forming a second electrode on the organic compound layer.

14. The method according to claim 13, wherein the organic compound layer is formed by discharging a composition in a fluid form for forming the organic compound layer from an ink-jet recording head in a pattern using an ink-jet recording apparatus, to locally apply the composition to the hydrophilic region.

15. A method for producing an organic electroluminescence element, the method comprising:

forming a first electrode on a substrate,

forming a surface in contact with a hydrophilic compound having a polymerizable group on the substrate having the first electrode formed thereon, and irradiating the surface with a radiation ray to form a hydrophilic region on the first electrode,

forming at least one organic compound layer including an organic light emitting layer on the hydrophilic region, and

forming a second electrode on the organic compound layer.