Organic EL device having a convex portion, method of manufacturing organic EL device having a convex portion, and electronic apparatus having an organic EL device having a convex portion

• US 10,098,192 B2
• Filed: 04/19/2017
• Issued: 10/09/2018
• Est. Priority Date: 10/29/2012
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Hanamura, Yuki
• Primary Examiner(s): Green, Tracie Y
• Application Number:
  US15/491,277
• Publication Number:
  US 20170245330A1
• Time in Patent Office: 538 Days
• CPC Class Codes: G02B 5/201 in the form of arrays
• CPC Class Codes: H05B 33/04 Sealing arrangements , e.g. against humidity
• 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: H05B 33/22 characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
• CPC Class Codes: H10K 59/123 Connection of the pixel electrodes to the thin film transistors [TFT]
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]

Abstract

The organic EL device includes a base material as a substrate, a plurality of organic EL elements disposed on the based materials, a seal layer covering the plurality of organic EL elements to seal, color layers of at least red, green, and blue corresponding to a plurality of organic EL elements and formed on the seal layer, and a convex portion which is formed by dividing each of colored layers with different colors on the seal layer, and whose height is lower than the height of a colored layer of at least red, green, blue on the seal layer. The convex portion has a property of optical transparency, and is formed using a photosensitive resin material which is a main material of the colored layers, for example.

Claims

1. An organic EL device comprising:

a substrate;

a plurality of organic EL elements disposed above the substrate;

a seal layer covering and sealing the plurality of organic EL elements;

a color filter formed above the seal layer, the color filter comprising a first colored layer and a second colored layer; and

a convex portion provided on the seal layer between the first colored layer and the second colored layer,

wherein

each of first and second colored layer comprise a coloring material,

the convex portion comprises a same photosensitive resin material as the first colored layer and the second colored layer, and does not include the coloring material of the first colored layer or the second colored layer, and

the convex portion and the color filter are provided in contact with the top surface of the seal layer.

2. The organic EL device according to claim 1,

wherein the convex portion has optical transparency.

3. The organic EL device according to claim 1,

wherein a top portion of the convex portion is overlapped by at least one of the first colored layer or the second colored layer.

4. The organic EL device according to claim 1,

wherein the convex portion is provided in contact with the seal layer.

5. The organic EL device according to claim 1,

wherein an area of a bottom surface of the convex portion in contact with the seal layer is larger than an area of a top portion of the convex portion.

6. The organic EL device according to claim 1,

wherein the organic EL element and the color filter are provided in sub-pixels, and

wherein the convex portion is formed so as to divide the sub-pixels.

7. The organic EL device according to claim 1,

wherein the seal layer comprises, sequentially stacked from the plurality of organic EL element side:

a first seal layer made of inorganic material;

a flattened layer; and

a second seal layer made of inorganic material.

9. An electronic device comprising the organic EL device according to claim 1.

10. An electronic device comprising the organic EL device according to claim 2.

11. An electronic device comprising the organic EL device according to claim 3.

12. An electronic device comprising the organic EL device according to claim 4.

13. An electronic device comprising the organic EL device according to claim 5.

14. An electronic device comprising the organic EL device according to claim 6.

15. An electronic device comprising the organic EL device according to claim 7.

8. An organic EL device comprising:

a substrate;

a plurality of organic EL elements disposed above the substrate;

a seal layer covering and sealing the plurality of organic EL elements;

a color filter formed above the seal layer, the color filter comprising a first colored layer and a second colored layer; and

a convex portion provided on the seal layer between the first colored layer and the second colored layer,

wherein the first colored layer and the second colored layer comprise a coloring material and a photosensitive resin material, the convex portion consists of the same photosensitive resin material as the first colored layer and the second colored layer, and does not include the coloring material of the first colored layer or the second colored layer, and

the convex portion and the color filter are provided in contact with the top surface of the seal layer.

16. An electronic device comprising the organic EL device according to claim 8.

17. An organic EL device comprising:

a substrate;

a plurality of organic EL elements disposed above the substrate;

a seal layer covering and sealing the plurality of organic EL elements;

a color filter formed above the seal layer, the color filter comprising a first colored layer and a second colored layer; and

a convex portion provided on the seal layer between the first colored layer and the second colored layer,

wherein, the convex portion comprises a same photosensitive resin material as the first colored layer and the second colored layer,

wherein a top portion of the convex portion is overlapped by at least one of the first colored layer or the second colored layer, and

wherein the convex portion and the color filter are provided in contact with the top surface of the seal layer.

18. An organic EL device comprising:

a substrate;

a plurality of organic EL elements disposed above the substrate;

a seal layer covering and sealing the plurality of organic EL elements;

a color filter formed above the seal layer, the color filter comprising a first colored layer and a second colored layer; and

a convex portion provided on the sealing layer between the first colored layer and the second colored layer,

wherein the color filter comprises a coloring material and a photosensitive resin material, and the convex portion consists of the same photosensitive resin material as the first colored layer and the second colored layer,

wherein a top portion of the convex portion is overlapped by at least one of the first colored layer or the second colored layer, and

wherein the convex portion and the color filter are provided in contact with the top surface of the seal layer.