# US 11,444,228 B2 · Light emitting device and display apparatus

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

- Number: US 11,444,228 B2
- Document ID: US11444228B2
- Status: Granted
- Kind: B2
- Application number: 16/763,217
- Filed: 2018-10-05
- Published: 2020-10-22
- Granted: 2022-09-13
- Earliest claimed: 2017-11-20
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Tatsuo Ohashi; Goshi Biwa; Akira Ohmae; Yusuke Kataoka
- Web page: https://patentgrep.com/patent/US11444228B2

## CPC

- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10H 20/814: having reflecting means, e.g. semiconductor Bragg reflectors
- H10H 20/831: characterised by their shape
- H10H 20/841: Reflective coatings, e.g. dielectric Bragg reflectors
- H10H 20/855: Optical field-shaping means, e.g. lenses
- H10H 20/856: Reflecting means
- H10W 90/00: Package configurations
- H10H 20/0363: {of optical field-shaping means}
- H10H 20/819: characterised by their shape, e.g. curved or truncated substrates
- H10H 20/824: comprising only Group III-V materials, e.g. GaP
- H10H 20/825: containing nitrogen, e.g. GaN
- H10H 20/835: {Reflective materials}
- H10H 20/852: Encapsulations
- H10H 20/853: characterised by their shape
- H10H 20/854: characterised by their material, e.g. epoxy or silicone resins
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

A light emitting device of one embodiment of the present disclosure includes: a substrate; a light emitting element disposed above the substrate, and having electrodes on respective upper surface and lower surface of the light emitting element; and a light shielding layer provided between the substrate and the light emitting element.

## Claims

### Claim 1

A light emitting device, comprising:
a substrate;
a light emitting element above the substrate, wherein the light emitting element comprises a first electrode on an upper surface of the light emitting element and a second electrode on a lower surface of the light emitting element;
a light shielding layer between the substrate and the light emitting element; and
a plurality of terminal electrodes between the light shielding layer and the light emitting element, wherein
each terminal electrode of the plurality of terminal electrodes is electrically coupled to one of the first electrode or the second electrode, and
a first terminal electrode of the plurality of terminal electrodes has an opening positioned on an inner side of a region where the substrate opposes the light emitting element.

### Claim 2 (depends on 1)

The light emitting device according to claim 1, wherein
the light shielding layer has wavelength selectivity, and
the light shielding layer transmits light with a wavelength other than a wavelength of light outputted from the light emitting element.

### Claim 3 (depends on 1)

The light emitting device according to claim 1, wherein the light shielding layer transmits light with a wavelength other than a wavelength of light outputted from the light emitting element and other than a wavelength within a wavelength range ±50 nm from the wavelength of the light outputted from the light emitting element.

### Claim 4 (depends on 1)

The light emitting device according to claim 1, wherein the light shielding layer comprises a light reflective layer in which multiple layers having refractive indexes that are different from each other are alternately laminated.

### Claim 5 (depends on 1)

The light emitting device according to claim 1, wherein the light shielding layer comprises a metal film.

### Claim 6 (depends on 5)

The light emitting device according to claim 5, wherein the metal film has an opening positioned on the inner side of the region where the substrate opposes the light emitting element.

### Claim 7 (depends on 1)

The light emitting device according to claim 1, wherein
a second terminal electrode of the plurality of terminal electrodes is electrically coupled, through a conductive line, to the first electrode on the upper surface of the light emitting element, and
the second terminal electrode is at a position spaced apart from a side surface of the light emitting element.

### Claim 8 (depends on 7)

The light emitting device according to claim 7, wherein
the second terminal electrode of the plurality of terminal electrodes is at a location that is above the substrate and that is positioned on an outer side of the region where the substrate opposes the light emitting element, and
a gap is between the second terminal electrode of the plurality of terminal electrodes and the first terminal electrode of the plurality of terminal electrodes.

### Claim 9 (depends on 8)

The light emitting device according to claim 8, wherein the light shielding layer is in at least a position corresponding to the gap between the first terminal electrode and the second terminal electrode.

### Claim 10 (depends on 1)

The light emitting device according to claim 1, wherein the light emitting element is embedded in an insulator.

### Claim 11 (depends on 10)

The light emitting device according to claim 10, wherein at least one light emitting element is embedded in the insulator together with the light emitting element, the at least one light emitting element outputs light with a mutually-different wavelength.

### Claim 12

A display apparatus, comprising:
a display panel having a plurality of pixels; and
a drive circuit configured to drive the plurality of pixels, wherein
a pixel of the plurality of pixels comprises a light emitting device,
the light emitting device is above a substrate, and
the light emitting device comprises:
a light emitting element above the substrate, wherein the light emitting element comprises a first electrode on an upper surface of the light emitting element and a second electrode on a lower surface of the light emitting element;
a light shielding layer between the substrate and the light emitting element; and
a plurality of terminal electrodes between the light shielding layer and the light emitting element, wherein
each terminal electrode of the plurality of terminal electrodes is electrically coupled to one of the first electrode or the second electrode, and
a terminal electrode of the plurality of terminal electrodes has an opening positioned on an inner side of a region where the substrate opposes the light emitting element.
