# US 2023/0057731 A1 · Lighting device and method for manufacturing lighting device

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- Number: US 2023/0057731 A1
- Document ID: US20230057731A1
- Status: Published application
- Kind: A1
- Application number: 17/976,867
- Filed: 2022-10-30
- Published: 2023-02-23
- Earliest claimed: 2019-02-21
- Assignees: Innolux Corporation
- Applicants: InnoLux Corporation
- Inventors: Jia-Yuan Chen; Tsung-Han Tsai; Kuan-Feng Lee; Yuan-Lin Wu
- Web page: https://patentgrep.com/patent/US20230057731A1

## CPC

- H10H 20/84: Coatings, e.g. passivation layers or antireflective coatings
- H10H 20/855: Optical field-shaping means, e.g. lenses
- H10W 90/00: Package configurations
- H10H 20/018: {Bonding of wafers}
- H10H 20/0363: {of optical field-shaping means}
- H10H 20/8316: {Multi-layer electrodes comprising at least one discontinuous layer}
- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10H 20/882: {Scattering means (H10H20/82 takes precedence)}
- H10H 29/30: Active-matrix LED displays
- H10H 29/842: {Coatings, e.g. passivation layers or antireflective coatings}
- 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

The present disclosure provides a lighting device and a manufacturing method thereof. The lighting device includes a substrate, a light emitting unit, a light adjusting layer and at least one electrode connecting element. The light emitting unit is disposed on the substrate and includes a light output surface and a plurality of top electrodes. The light adjusting layer is disposed on the light emitting unit, and the light adjusting layer includes a first portion and a second portion connected to the first portion. Wherein the top electrodes are electrically connected to each other through the electrode connecting element, the first portion only partially covers the light output surface, and the second portion does not cover the light output surface.

## Claims

### Claim 1

A lighting device comprising:
a substrate;
a light emitting unit disposed on the substrate, the light emitting unit comprising a light output surface and a plurality of top electrodes;
a light adjusting layer disposed on the light emitting unit, the light adjusting layer comprising a first portion and a second portion connected to the first portion; and
at least one electrode connecting element;
wherein the top electrodes are electrically connected to each other through the electrode connecting element, the first portion only partially covers the light output surface, and the second portion does not cover the light output surface.

### Claim 2 (depends on 1)

The lighting device according to claim 1, wherein the electrode connecting element comprises a transparent conductive material.

### Claim 3 (depends on 1)

The lighting device according to claim 1, further comprising an optical layer disposed on the light adjusting layer.

### Claim 4 (depends on 3)

The lighting device according to claim 3, wherein a projected area of the light adjusting layer is less than a projected area of the optical layer.

### Claim 5

A method for manufacturing a lighting device, comprising:
providing a first substrate supporting a light emitting unit and a light adjusting layer disposed on the light emitting unit, wherein the light emitting unit includes a light output surface, and the light adjusting layer comprises a first portion and a second portion connected to the first portion;
providing a second substrate; and
transferring the light emitting unit and the light adjusting layer to the second substrate;
wherein the first portion covers the light output surface, and the second portion does not cover the light output surface.

### Claim 6 (depends on 5)

The method according to claim 5, wherein providing the first substrate supporting the light emitting unit and the light adjusting layer comprises:
forming the light emitting unit on the first substrate;
forming a preliminary light adjusting layer on the light emitting unit; and
patterning the preliminary light adjusting layer to form the light adjusting layer.