# US 12,010,899 B1 · Display apparatus having a light-emitting device and an optical lens

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- Number: US 12,010,899 B1
- Document ID: US12010899B1
- Status: Granted
- Kind: B1
- Application number: 18/362,871
- Filed: 2023-07-31
- Published: 2024-06-13
- Granted: 2024-06-11
- Earliest claimed: 2022-12-13
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: Tae Gyu Lee; Jung Eun Lee
- Web page: https://patentgrep.com/patent/US12010899B1

## CPC

- H10K 59/879: {comprising refractive means, e.g. lenses}
- G06F 3/0443: {using a single layer of sensing electrodes}
- G06F 3/0446: {using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes}
- H10K 50/865: {comprising light absorbing layers, e.g. light-blocking layers}
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/873: {Encapsulations}
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- G06F 3/0412: {Digitisers structurally integrated in a display}
- G06F 2203/04111: Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
- G06F 2203/04112: Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
- G06F 2203/04114: Touch screens adapted for alternating or simultaneous interaction with active pens and passive pointing devices like fingers or passive pens
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A display apparatus includes a light-emitting device and an optical lens are stacked on an emission area of a device substrate. A black matrix and a touch electrode may be disposed on a non-emission area of the device substrate. An encapsulation unit covering the light-emitting device and an optical insulating layer covering the black matrix may be disposed on the emission area and the non-emission area of the device substrate. The touch electrode and the optical lens may be disposed on the optical insulating layer. A lens barrier may be disposed on the optical insulating layer. The optical lens may be surrounded by the lens barrier. Thus, in the display apparatus, a deform of the optical lens due to a reflow process may be prevented. Therefore, in the display apparatus, decreasing the quality of the image due to a process of forming the optical lens may be prevented.

## Claims

### Claim 1

A display apparatus comprising:
a bank insulating layer on a device substrate, the bank insulating layer defining an emission area;
a light-emitting device on the emission area of the device substrate;
an encapsulation unit on the bank insulating layer and the light-emitting device;
a black matrix on the encapsulation unit, the black matrix overlapping with the bank insulating layer;
an optical lens on the encapsulation unit, the optical lens overlapping with the emission area;
an optical insulating layer disposed between the encapsulation unit and the optical lens, the black matrix being disposed on the optical insulating layer;
a touch electrode on the optical insulating layer, the touch electrode overlapping with the black matrix; and
a lens barrier on the optical insulating layer, the lens barrier surrounding the optical lens.

### Claim 2 (depends on 1)

The display apparatus according to claim 1, wherein the lens barrier includes an insulating material.

### Claim 3 (depends on 1)

The display apparatus according to claim 1, wherein the lens barrier is in contact with an edge of the optical lens.

### Claim 4 (depends on 3)

The display apparatus according to claim 3, wherein the lens barrier extends along the edge of the optical lens.

### Claim 5 (depends on 1)

The display apparatus according to claim 1, wherein the lens barrier is in contact with an upper surface of the optical insulating layer opposite to the device substrate.

### Claim 6 (depends on 5)

The display apparatus according to claim 5, wherein the lens barrier includes a same material as the optical insulating layer.

### Claim 7 (depends on 1)

The display apparatus according to claim 1, further comprising a bridge electrode between the black matrix and the optical insulating layer, the bridge electrode electrically connected to the touch electrode.

### Claim 8 (depends on 7)

The display apparatus according to claim 7, wherein the bridge electrode is in contact with an upper surface of the black matrix toward the touch electrode.

### Claim 9 (depends on 1)

The display apparatus according to claim 1, wherein an end of the touch electrode is disposed on the lens barrier.

### Claim 10 (depends on 1)

The display apparatus according to claim 1, wherein a thickness of the lens barrier is larger than a thickness of the touch electrode.

### Claim 11

A display apparatus comprising:
a device substrate including emission areas and a non-emission area between the emission areas;
light-emitting devices on the emission areas of the device substrate;
an encapsulation unit on the light-emitting devices, the encapsulating unit extending on the non-emission area of the device substrate;
a black matrix on the encapsulation unit, the black matrix overlapping with the non-emission areas;
an optical insulating layer on the black matrix, the optical insulating layer extending on the emission areas of the device substrate;
touch electrodes on the optical insulating layer, the touch electrodes overlapping with the black matrix;
optical lenses on the optical insulating layer, the optical lenses overlapping with the emission areas; and
lens barriers between the optical lenses on the optical insulating layer.

### Claim 12 (depends on 11)

The display apparatus according to claim 11, wherein each of the optical lenses is surrounded by the lens barriers, wherein a plane of each lens barriers has a shape different from an outline of the corresponding optical lens.

### Claim 13 (depends on 11)

The display apparatus according to claim 11, wherein each of the lens barriers is disposed on an edge of one of the touch electrodes.

### Claim 14 (depends on 13)

The display apparatus according to claim 13, wherein the lens barriers include a same material as the touch electrodes.

### Claim 15 (depends on 13)

The display apparatus according to claim 13, wherein the lens barriers are spaced apart from the optical lenses.

### Claim 16

A display apparatus, comprising:
a substrate having a first emission area and a second emission area;
a first light-emitting device in the first emission area and a second light-emitting device in the second emission area;
an optical insulating layer on the first light-emitting device and the second light-emitting device;
a first optical lens on the optical insulating layer, wherein at least a portion of the first optical lens overlaps with the first light-emitting device;
a second optical lens on the optical insulating layer, wherein at least a portion of the second optical lens overlaps with the second light-emitting device; and
a lens barrier on the optical insulating layer, wherein the lens barrier protrudes above the optical insulating layer in a first direction and is disposed between the first optical lens and the second optical lens.

### Claim 17 (depends on 16)

The display apparatus of claim 16, further comprising at least a part of a touch electrode on the optical insulating layer, the part of the touch electrode disposed between the first optical lens and the second optical lens.

### Claim 18 (depends on 17)

The display apparatus of claim 17, further comprising a second lens barrier on the optical insulating layer adjacent to the second optical lens, and wherein the part of the touch electrode is between the first lens barrier and the second lens barrier.

### Claim 19 (depends on 17)

The display apparatus of claim 17, wherein the first optical lens contacts a side surface of the part of the touch electrode, and the lens barrier is disposed on an upper surface of the part of the touch electrode.

### Claim 20 (depends on 17)

The display apparatus of claim 17, wherein the lens barrier extends from the part of the touch electrode to protrude in the first direction, and the lens barrier is formed of a same material as the part of the touch electrode.
