ELECTRO-OPTICAL DEVICE, METHOD FOR MANUFACTURING ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS

• US 20180138245A1
• Filed: 11/14/2017
• Published: 05/17/2018
• 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
• Granted Patent: US 10,403,687 B2
• Time in Patent Office: 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

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

3. 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

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

4. 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, the ratio of a length of a portion where the convex portion and the sealing layer are in contact with each other is equal to or more than 20% based on a length of a portion where the first color filter and the sealing layer are in contact with each other.

5. 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.

6. 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.

8. An electronic apparatus comprising:

the electro-optical device according to claim 1.

9. An electronic apparatus comprising:

the electro-optical device according to claim 2.

10. An electronic apparatus comprising:

the electro-optical device according to claim 3.

11. An electronic apparatus comprising:

the electro-optical device according to claim 4.

12. An electronic apparatus comprising:

the electro-optical device according to claim 5.

13. An electronic apparatus comprising:

the electro-optical device according to claim 6.

7. 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.

14. An electronic apparatus comprising:

the electro-optical device according to claim 7.