# US 12,120,922 B2 · Display with light absorber round optical element

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- Number: US 12,120,922 B2
- Document ID: US12120922B2
- Status: Granted
- Kind: B2
- Application number: 17/122,586
- Filed: 2020-12-15
- Published: 2021-07-01
- Granted: 2024-10-15
- Earliest claimed: 2019-12-31
- Assignees: LG Display Co., Ltd.
- Applicants: LG Display Co., Ltd.
- Inventors: Choonghyo Kim
- Web page: https://patentgrep.com/patent/US12120922B2

## CPC

- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K 59/65: OLEDs integrated with inorganic image sensors
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 59/878: {comprising reflective means}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display apparatus is disclosed, which includes a display panel having a first area and a second area, a main body supporting the display panel, an auxiliary member arranged in the main body and overlapped with the first area of the display panel, and a light absorption portion arranged in the second area of the display panel to surround the first area of the display panel. Therefore, external light reflected from the auxiliary member is prevented from being re-reflected in the auxiliary member, whereby image overlap or noise may be prevented from occurring.

## Claims

### Claim 1

A display apparatus, comprising:
a display panel having a first area and a second area surrounding the first area;
a main body supporting the display panel;
an auxiliary member arranged in the main body and overlapped with the first area of the display panel; and
a light absorption portion arranged in the second area of the display panel,
wherein both the first area and the second area of the display panel are configured to emit light,
wherein the first area includes a first pixel, the second area includes a second pixel,
wherein each of the first pixel and the second pixel respectively includes a substrate, a circuit element layer provided on the substrate, a first electrode provided on the circuit element layer, and a bank provided to cover edges of the first electrode,
wherein the substrate of the second pixel is on the lower surface of the circuit element layer,
wherein a lower surface of the light absorption portion is disposed closer to the substrate of the second pixel than a lower surface of the bank of the second pixel in a direction from the light absorption portion toward the substrate of the second pixel,
wherein the light absorption portion is arranged on an upper surface of the circuit element layer of the second pixel, and
wherein each of the first pixel and the second pixel includes an insulating layer arranged on the upper surface of the circuit element layer, and the light absorption portion has a thickness equal to or thicker than that of the insulating layer.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein the first area is a transparent area, and the second area is an opaque area.

### Claim 3 (depends on 2)

The display apparatus of claim 2, wherein a direct external light directly entering toward the auxiliary member from outside through the first area reaches the auxiliary member, and a re-reflective external light re-reflected from inside of the main body is absorbed by the light absorption portion.

### Claim 4 (depends on 1)

The display apparatus of claim 1, wherein the bank is provided as a transparent bank or a black bank.

### Claim 5 (depends on 4)

The display apparatus of claim 4, wherein the light absorption portion has a width equal to or narrower than that of a bank.

### Claim 6 (depends on 4)

The display apparatus of claim 4, wherein if the light absorption portion is overlapped with the transparent bank, the light absorption portion is partially inserted into the transparent bank.

### Claim 7 (depends on 6)

The display apparatus of claim 6, wherein the portion of the light absorption portion inserted into the transparent bank has a thickness equal to or smaller than that of the transparent bank.

### Claim 8 (depends on 4)

The display apparatus of claim 4, wherein if the light absorption portion is partially overlapped with the transparent bank, the light absorption portion is not inserted into the transparent bank.

### Claim 9 (depends on 4)

The display apparatus of claim 4, wherein each of the first pixel and the second pixel respectively further includes an organic light emitting layer arranged on the first electrode and a second electrode arranged on the organic light emitting layer and the bank, and the second electrode arranged in the first pixel and the second electrode arranged in the second pixel are provided at the same height.

### Claim 10 (depends on 4)

The display apparatus of claim 4, wherein if the light absorption portion is overlapped with the black bank, the light absorption portion is connected with the black bank.

### Claim 11 (depends on 4)

The display apparatus of claim 4, wherein if the light absorption portion is partially overlapped with the black bank, the light absorption portion is not inserted into the black bank.

### Claim 12 (depends on 4)

The display apparatus of claim 4, wherein the first electrode of the second pixel is a reflective electrode, and the first electrode of the first pixel is a transparent electrode.

### Claim 13 (depends on 1)

The display apparatus of claim 1, wherein the auxiliary member is provided as a camera or a sensor.

### Claim 14 (depends on 1)

The display apparatus of claim 1, wherein the auxiliary member is arranged to be spaced apart from the substrate of the first pixel toward inside of the main body at a predetermined distance, and
wherein the auxiliary member is a camera, and the predetermined distance between the auxiliary member and the substrate of the first pixel is calculated by subtracting a thickness of the circuit element layer, a thickness of the display panel, and a thickness of the camera lens from a distance between a lower surface of the camera lens and a lower surface of the light absorption portion.

### Claim 15 (depends on 2)

The display apparatus of claim 2, wherein the width of the first area is equal to or greater than the width of the auxiliary member.

### Claim 16 (depends on 1)

The display apparatus of claim 1, further comprising:
a support member configured to support the auxiliary member, and a width of the support member is provided to be greater than a width of the auxiliary member to support the display panel arranged in the second area; and
an insertion member arranged between the display panel and the support member in the second area and is provided to be thicker than the auxiliary member to make sure of a space for arranging the auxiliary member.

### Claim 17 (depends on 1)

The display apparatus of claim 1, wherein the first pixel and the second pixel are provided at different sizes.
