Electro-optical device, method for manufacturing electro-optical device, and electronic apparatus

• US 10,403,687 B2
• Filed: 11/14/2017
• Issued: 09/03/2019
• Est. Priority Date: 11/15/2016
• Status: Active Grant

• Current Assignee: Lumitek Display Technology Limited
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Akagawa, Suguru, Nozawa, Ryoichi, Kubota, Naotaka, Fukagawa, Takefumi
• Primary Examiner(s): Williams, Joseph L
• Assistant Examiner(s): Stern, Jacob R
• Application Number:
  US15/812,595
• Publication Number:
  US 20180138245A1
• Time in Patent Office: 658 Days
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/3225 using an active matrix
• CPC Class Codes: H10K 2102/351 Thickness
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/8428 Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/852 comprising a resonant cavity structure, e.g. Bragg reflector pair
• CPC Class Codes: H10K 50/856 comprising reflective means
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/352 the areas of the RGB subpixels being different
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass

Abstract

There is provided an electro-optical device including a light-emitting element, a sealing layer that covers the light-emitting element, a color filter layer that is formed on the sealing layer, and a convex portion that is provided between the sealing layer and the color filter layer and has a first surface in contact with the sealing layer and a second surface in contact with the color filter layer, in which the second surface is a curved surface.

Claims

1. An electro-optical device comprising:

a light-emitting element;

a sealing layer that covers the light-emitting element;

a color filter layer that is formed on the sealing layer and partially contacts the sealing layer; and

a convex portion that is provided between the sealing layer and the color filter layer and has a first surface in contact with the sealing layer and a second surface in contact with the color filter layer, wherein the second surface is a curved surface.

2. The electro-optical device according to claim 1, wherein:

the second surface is a continuously curved surface whose top portion farthest from the sealing layer is covered with both a first color filter and a second color filter.

3. An electronic apparatus comprising:

the electro-optical device according to claim 1.

4. The electro-optical device according to claim 1, wherein

a shape of the second surface in a cross section including the color filter layer and the convex portion is a substantially arc shape.

5. An electronic apparatus comprising:

the electro-optical device according to claim 4.

6. The electro-optical device according to claim 1, wherein:

the color filter layer includes a first color filter that transmits light in a first wavelength region and a second color filter that transmits light in a second wavelength region; and

a top portion of the second surface farthest from the sealing layer is covered with the first color filter and the second color filter.

7. An electronic apparatus comprising:

the electro-optical device according to claim 6.

8. The electro-optical device according to claim 1, wherein:

the color filter layer includes a first color filter being in contact with the sealing layer and the convex portion; and

in a cross section including the convex portion and the first color filter, a length of the convex portion that is in contact with the sealing layer is equal to or more than 20% of a length of the first color filter that is in contact with the sealing layer.

9. An electronic apparatus comprising:

the electro-optical device according to claim 8.

10. The electro-optical device according to claim 1, wherein

a thickness of the convex portion is equal to or less than a thickness of the color filter layer.

11. An electronic apparatus comprising:

the electro-optical device according to claim 10.

12. The electro-optical device according to claim 1, wherein:

the convex portion includes a translucent photosensitive resin material; and

the color filter layer includes a coloring material and the photosensitive resin material.

13. An electronic apparatus comprising:

the electro-optical device according to claim 12.

14. A method for manufacturing an electro-optical device, comprising:

forming a convex portion on a sealing layer that covers a light-emitting element so as to include a first surface being in contact with the sealing layer and a second surface being a curved surface that is not in contact with the sealing layer; and

forming a color filter layer on the sealing layer and the second surface, the color filter layer partially contacting the sealing layer.

15. An electronic apparatus comprising:

the electro-optical device according to claim 14.