Electro-optical device, manufacturing method of the same, and electronic apparatus

• US 7,245,797 B2
• Filed: 11/15/2006
• Issued: 07/17/2007
• Est. Priority Date: 09/04/2003
• Status: Active Grant

• Current Assignee: Intellectual Keystone Technology LLC
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Hayashi, Kenji, Nozawa, Ryoichi
• Primary Examiner(s): HEALY, BRIAN
• Application Number:
  US11/599,278
• Publication Number:
  US 20070065072A1
• Time in Patent Office: 244 Days
• Field of Search: 385/14, 385/129, 385/130, 385/131, 385/88, 385/89, 385/49, 385/901, 313/504, 313/306, 438/26, 438/27, 438/28, 438/29, 438/30, 438/31
• US Class Current: 385/14
• 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: H10K 2102/331 Nanoparticles used in non-emissive layers, e.g. in packaging layer
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/12 Active-matrix OLED [AMOLED] displays
• CPC Class Codes: H10K 59/122 Pixel-defining structures or layers, e.g. banks
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: Y10S 385/901 Illuminating or display apparatus

Abstract

To provide an electro-optical device in which the fluidity of a material for forming the underlying layer of a gas barrier layer is controlled, and the volume-change of the underlying layer is suppressed, so that stress-concentration on the gas barrier layer is relaxed, and to provide a method of producing the same and an electronic apparatus. In an electro-optical device having, on a substrate, a plurality of first electrodes, a bank structure having a plurality of openings positioned correspondingly to the formed first electrodes, electro-optical layers arranged in the respective openings, and a second electrode covering the bank structure and the electro-optical layers, the device includes a buffer layer formed so as to cover the second electrode and have a substantially flat upper surface, and a gas barrier layer covering the buffer layer.

Claims

1. An electro-optical device, comprising:

a substrate;

a plurality of first electrodes arranged in a matrix pattern on a pixel electrode region of the substrate;

a partition having a plurality of openings positioned correspondingly to the plurality of first electrodes;

electro-optical layers arranged in the respective openings;

a second electrode covering the partition and the electro-optical layers;

a resin layer covering the second electrode; and

a gas-barrier layer covering the resin layer;

the gas-barrier layer covering the resin layer so that the resin layer is not exposed.

2. The electro-optical device according to claim 1, the resin layer being made of an ultra-violet curable resin.

3. The electro-optical device according to claim 1, further comprising:

an electrode protection layer formed between the second electrode and the resin layer.

4. The electro-optical device according to claim 3, the electrode protection layer being formed with an ultra-violet absorptive material.

5. The electro-optical device according to claim 1, the resin layer containing fine particles.

6. The electro-optical device according to claim 1, the resin layer covering the resin layer so that the partition is not exposed.

7. The electro-optical device according to claim 1, the gas-barrier layer contacting the electrode protection layer in a region between the pixel electrode region and the periphery of the substrate.

8. An electro-optical apparatus including the electro-optical device specified in claim 1.