# US 12,193,275 B2 · Display backplane and mobile terminal

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- Number: US 12,193,275 B2
- Document ID: US12193275B2
- Status: Granted
- Kind: B2
- Application number: 17/622,846
- Filed: 2021-12-22
- Published: 2024-02-01
- Granted: 2025-01-07
- Earliest claimed: 2021-12-16
- Assignees: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Applicants: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Inventors: Jia Tang
- Web page: https://patentgrep.com/patent/US12193275B2

## CPC

- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 59/80518: {Reflective anodes, e.g. ITO combined with thick metallic layers}
- H10K 59/878: {comprising reflective means}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

A display backplane and a mobile terminal are provided. The display backplane includes a substrate, a plurality of pixel units disposed on the substrate, and a barrier layer disposed on the substrate. The pixel unit includes a reflection unit, the barrier layer includes a plurality of barriers arranged between two adjacent pixel units, and two adjacent reflection units are separately provided by the barriers.

## Claims

### Claim 1

A display backplane, comprising:
a substrate;
a plurality of pixel units disposed on the substrate, the pixel units comprising reflection units; and
a barrier layer disposed on the substrate, wherein the barrier layer comprises a plurality of barriers disposed between two adjacent pixel units, and two adjacent reflection units are separately disposed by the barriers;
wherein the barrier layer comprises a barrier disposed in an interval between two adjacent pixel units;
wherein the barrier is spaced apart from two adjacent pixel units;
wherein the display backplane further comprises a pixel isolation column disposed between two adjacent pixel units;
wherein the barrier is located in the pixel isolation column.

### Claim 2 (depends on 1)

The display backplane according to claim 1, wherein the pixel unit further comprises an anode unit disposed on the reflection unit.

### Claim 3 (depends on 2)

The display backplane according to claim 2, wherein the barrier is attached to the reflection unit and the anode unit.

### Claim 4 (depends on 3)

The display backplane according to claim 3, wherein the barrier comprises a first barrier part and a second barrier part.

### Claim 5 (depends on 4)

The display backplane according to claim 4, wherein the first barrier part is disposed on opposite sides of two adjacent pixel units.

### Claim 6 (depends on 5)

The display backplane according to claim 5, wherein the second barrier part is disposed on a side surface of the anode unit away from the reflection unit.

### Claim 7 (depends on 1)

A mobile terminal, comprising a terminal main body and the display backplane according to claim 1, wherein the display backplane and the terminal main body are combined into one body.

### Claim 8 (depends on 1)

The display backplane according to claim 1, wherein the pixel unit further comprises an anode unit disposed on the reflection unit.

### Claim 9 (depends on 8)

The display backplane according to claim 8, wherein in a light emitting direction of the display backplane, a height of the barrier is greater than a sum of a height of the reflection unit and a height of the anode unit.

### Claim 10 (depends on 1)

The display backplane according to claim 1, wherein the pixel unit further comprises a light emitting unit disposed on the anode unit.

### Claim 11 (depends on 10)

The display backplane according to claim 10, wherein the pixel unit further comprises a cathode unit disposed on the light emitting unit.

### Claim 12 (depends on 11)

The display backplane according to claim 11, wherein the cathode units of the plurality of pixel units are continuously arranged to form a continuous cathode layer.

### Claim 13 (depends on 12)

The display backplane according to claim 12, wherein the continuous cathode layer covers a plurality of pixel isolation columns.

### Claim 14 (depends on 13)

The display backplane according to claim 13, wherein in a light emitting direction of the display backplane, a height of the pixel isolation column is greater than a sum of heights of the reflection unit, the anode unit, and the light emitting unit.

### Claim 15

A display backplane, comprising:
a substrate;
a plurality of pixel units disposed on the substrate, the pixel units comprising reflection units; and
a barrier layer disposed on the substrate, wherein the barrier layer comprises a plurality of barriers disposed between two adjacent pixel units, and two adjacent reflection units are separately disposed by the barriers;
wherein in a light emitting direction of the display backplane, a thickness of the barrier layer is greater than or equal to a thickness of the reflection unit;
wherein in the light emitting direction of the display backplane, the thickness of the barrier layer is less than or equal to twice the thickness of the reflection unit.