# US 10,872,946 B2 · Display apparatus, manufacturing method of display apparatus, and electronic device

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

- Number: US 10,872,946 B2
- Document ID: US10872946B2
- Status: Granted
- Kind: B2
- Application number: 16/692,850
- Filed: 2019-11-22
- Published: 2020-03-19
- Granted: 2020-12-22
- Earliest claimed: 2009-02-10
- Assignees: Joled Inc.
- Applicants: Joled Inc.
- Inventors: Shinya Tamonoki; Hiroshi Sagawa
- Web page: https://patentgrep.com/patent/US10872946B2

## CPC

- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10H 20/813: having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 71/70: Testing, e.g. accelerated lifetime tests
- H10D 86/40: characterised by multiple TFTs
- H10D 86/60: wherein the TFTs are in active matrices
- H10K 59/1201: {Manufacture or treatment}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES

## Abstract

A display apparatus including: a display region provided with a plurality of pixel portions; wires installed to the respective pixel portions within the display region from an outside of the display region for transmitting a signal to drive the respective pixel portions; connection pads provided on the outside of the display region and serving as input portions to provide the wires with a signal while electrically conducting with the wires; switch elements provided on the outside of the display region in a middle of the wires; and a light shielding covering portion shielding the switch elements from light and formed to cover the connection pads while electrically conducting with the connection pads.

## Claims

### Claim 1

A display apparatus having, in plan view, a display region including at least one pixel, the display apparatus comprising:
(a) a plurality of switching elements on a substrate;
(b) a planarizing layer on the switching elements;
(c) a shielding layer overlaying the switching elements;
(d) a connection pad outside of the display region;
(e) an anode electrode, a wire, and an insulating layer on the planarizing layer with the insulating layer having a first opening via which the anode electrode is exposed and a second opening via which the wire is exposed, the anode electrode and the shielding layer being made of a same material; and
(f) an organic electroluminescence layer and a cathode electrode on the anode electrode, in this order.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein:
the switching elements are located outside of the display region;
scan lines extend between the switching elements; and
the light shielding layer overlays the switching elements at both end sides of the scan lines outside of the display region.

### Claim 3 (depends on 1)

The display apparatus of claim 1, wherein the switching elements are part of a protection circuit.

### Claim 4 (depends on 1)

The display apparatus of claim 1, wherein the switching elements are part of a test switch circuit.

### Claim 5 (depends on 1)

The display apparatus of claim 1, wherein the same material of the anode electrode overlays the connection pad.

### Claim 6 (depends on 5)

The display apparatus of claim 5, wherein the same material of the anode electrode is connected to the connection pad.

### Claim 7 (depends on 1)

The display apparatus of claim 1, wherein the anode electrode and the wire are on the insulating layer.