# US 10,312,476 B2 · Display device

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,312,476 B2
- Document ID: US10312476B2
- Status: Granted
- Kind: B2
- Application number: 15/869,185
- Filed: 2018-01-12
- Published: 2018-05-17
- Granted: 2019-06-04
- Earliest claimed: 2016-01-04
- Assignees: Japan Display Inc.
- Applicants: Japan Display Inc.
- Inventors: Takumi Kuji
- Web page: https://patentgrep.com/patent/US10312476B2

## CPC

- H10K 71/50: Forming devices by joining two substrates together, e.g. lamination techniques
- H10K 59/871: {Self-supporting sealing arrangements}
- H10K 71/80: using temporary substrates
- H10K 77/10: Substrates, e.g. flexible substrates
- H10K 59/1201: {Manufacture or treatment}
- H10K 59/80518: {Reflective anodes, e.g. ITO combined with thick metallic layers}
- H10K 71/851: {Division of substrate}
- Y02E 10/549: Organic PV cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A method of manufacturing a display device includes forming a first resin layer on a first substrate; forming a plurality of regions on the first resin layer, the plurality of regions each including a display portion, a terminal portion and a light blocking layer located between the display portion and the terminal portion; forming a second resin layer on a second substrate; bonding the first substrate and the second substrate; directing first laser light along a first line and a second line enclosing the plurality of regions such that the first laser light is transmitted through the second substrate to irradiate the first resin layer and the second resin layer; and directing second laser light along a third line parallel to the light blocking layer such that the second laser light is transmitted through the second substrate to irradiate the light blocking layer and the second resin layer.

## Claims

### Claim 1

A display device, comprising:
a first resin layer including a display region, a terminal portion electrically connected with the display region, and a light blocking layer located between the display region and the terminal portion in a plan view, the display region including a light emitting element including a positive electrode, a light emitting layer and a negative electrode, and the light blocking layer forming the same layer as the positive electrode; and
a second resin layer bonded to the first resin layer so as to face the first resin layer, wherein
the terminal portion includes external terminals,
the first resin layer includes wirings, each of which is connected to each of the external terminals and the display region,
the light blocking layer overlaps the wirings in a plan view, and
an insulation layer is arranged between the light blocking layer and the external terminals so that the light blocking layer is electrically isolated from the external terminals.

### Claim 2 (depends on 1)

The display device according to claim 1, wherein the positive electrode and the light blocking layer have the same layer structure as each other.

### Claim 3 (depends on 1)

The display device according to claim 1, wherein the positive electrode and the light blocking layer are formed of a stacked film including a metal layer and a transparent conductive layer.

### Claim 4 (depends on 3)

The display device according to claim 3, wherein an uppermost layer of the light blocking layer is the transparent conductive layer.

### Claim 5 (depends on 1)

The display device according to claim 1, wherein the light emitting element is covered with a protective layer, and the protective layer is not provided on the terminal portion.

### Claim 6 (depends on 5)

The display device according to claim 5, wherein the light blocking layer is arranged directly below an edge portion of the second resin layer.

### Claim 7 (depends on 5)

The display device according to claim 5, wherein the light blocking layer has a first portion having a first upper surface covered by the protective layer and a second portion having a second upper surface not covered by the protective layer.

### Claim 8 (depends on 5)

The display device according to claim 5, wherein a position of an edge portion of the protective layer substantially coincides with a position of an edge portion of the second resin layer in a cross-sectional view.