# US 12,191,260 B2 · Display panel and display apparatus

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- Number: US 12,191,260 B2
- Document ID: US12191260B2
- Status: Granted
- Kind: B2
- Application number: 17/723,524
- Filed: 2022-04-19
- Published: 2023-07-06
- Granted: 2025-01-07
- Earliest claimed: 2021-12-30
- Assignees: Xiamen Tianma Display Technology Co., Ltd.
- Applicants: Xiamen Tianma Display Technology Co., Ltd.
- Inventors: Yihua Zhu; Qingjun Lai; Jinjin Yang; Jiaxian Liu
- Web page: https://patentgrep.com/patent/US12191260B2

## CPC

- H10W 42/20: protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons
- H10D 86/441: {Interconnections, e.g. scanning lines}
- H10D 86/60: wherein the TFTs are in active matrices
- H10D 86/411: {characterised by materials, geometry or structure of the substrates}
- H10K 59/1213: {the pixel elements being TFTs}
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

The present application discloses a display panel and a display apparatus. The display panel includes a substrate, a first shielding layer and a driving circuit layer. The first shielding layer is located on a side of the substrate, and the first shielding layer includes a plurality of first shielding units located in a first display region and a plurality of second shielding units located in a second display region. At least a portion of adjacent first shielding units are connected through first connecting parts, and a portion of adjacent second shielding units are connected through second connecting parts. The driving circuit layer is located on a side of the first shielding layer away from the substrate, the driving circuit layer includes a plurality of driving circuits, and each driving circuit includes a driving transistor.

## Claims

### Claim 1

A display panel comprising a first display region and a second display region, wherein the display panel comprises:
a substrate;
a first shielding layer located on a side of the substrate, wherein the first shielding layer comprises a plurality of first shielding units located in the first display region and a plurality of second shielding units located in the second display region, at least a portion of adjacent first shielding units are connected through first connecting parts, and a portion of adjacent second shielding units are connected through second connecting parts;
a driving circuit layer located on a side of the first shielding layer away from the substrate, wherein the driving circuit layer comprises a plurality of driving circuits, and each driving circuit comprises a driving transistor;
wherein first shielding units of the plurality of first shielding units and second shielding units of the plurality of second shielding units are in one-to-one correspondence with driving transistors, and orthographic projections of channel regions of active layers of the driving transistors on the first shielding layer are located in the first shielding units and the second shielding units.

### Claim 2 (depends on 1)

The display panel according to claim 1, wherein each of the first shielding units is connected with N first connecting parts, and at least one of the second shielding units is connected with n second connecting parts, wherein n<N.

### Claim 3 (depends on 2)

The display panel according to claim 2, wherein a distribution density of the second connecting parts gradually decreases from a side close to the first display region to a side away from the first display region.

### Claim 4 (depends on 2)

The display panel according to claim 2, wherein the first shielding units are arranged in rows and columns, adjacent first shielding units along a row direction are electrically connected through the first connecting parts, and adjacent first shielding units along a column direction are electrically connected through the first connecting parts; the second shielding units are arranged in rows and columns, a portion of adjacent second shielding units along a row direction are connected through the second connecting parts, and a portion of adjacent second shielding units in a column direction are electrically connected through the second connecting parts.

### Claim 5 (depends on 2)

The display panel according to claim 2, wherein the second shielding units are arranged in rows and columns, and adjacent second shielding units in each row are electrically connected through the second connecting parts, and wherein the second display region comprises a plurality of first preset columns and a plurality of second preset columns, adjacent second shielding units in the first preset columns are electrically connected through the second connecting parts, and adjacent second shielding units in the second preset columns have first preset gaps.

### Claim 6 (depends on 5)

The display panel according to claim 5, wherein the second display region comprises a first preset column group containing at least one of the first preset columns and a second preset column group containing at least one of the second preset columns, and the first preset column group and the second preset column group are alternately arranged.

### Claim 7 (depends on 2)

The display panel according to claim 2, wherein the second shielding units are arranged in rows and columns, the second display region comprises a plurality of first preset rows and a plurality of second preset rows, at least a portion of adjacent second shielding units in the first preset rows have second preset gaps, and adjacent second shielding units in the second preset rows are electrically connected through the second connecting parts; the second display region comprises a plurality of first preset columns and a plurality of second preset columns, adjacent second shielding units in the first preset columns are electrically connected through the second connecting parts, and adjacent second shielding units in the second preset columns have first preset gaps.

### Claim 8 (depends on 7)

The display panel according to claim 7, wherein the second display region comprises a first preset row group containing at least one of the first preset rows and a second preset row group containing at least one of the second preset rows, and the first preset row group and the second preset row group are alternately arranged;
the second display region comprises a first preset column group containing at least one of the first preset columns and a second preset column group containing at least one of the second preset columns, and the first preset column group and the second preset column group are alternately arranged.

### Claim 9 (depends on 6)

The display panel according to claim 6, wherein the second display region further comprises a plurality of third preset columns, a portion of adjacent second shielding units in the third preset columns are electrically connected through the second connecting parts, and a portion of adjacent second shielding units in the third preset columns have first preset gaps;
the second display region further comprises a third preset column group containing at least one of the third preset columns, and the first preset column group, the second preset column group and the third preset column group are arranged in sequence.

### Claim 10 (depends on 1)

The display panel according to claim 1, wherein each of the first shielding units is connected with N first connecting parts, and at least one of the second shielding units is connected with n second connecting parts, wherein n=N.

### Claim 11 (depends on 1)

The display panel according to claim 1, further comprising an insulating layer formed between the first shielding layer and the driving circuit layer.

### Claim 12 (depends on 1)

The display panel according to claim 1, wherein material of the first shielding layer comprises molybdenum, or
material of the first shielding units comprises molybdenum; each of the second shielding units comprises a silicon material layer, a silicon dioxide material layer and a molybdenum metal layer sequentially arranged along a direction away from the substrate.

### Claim 13 (depends on 1)

The display panel according to claim 1, wherein the first shielding units are connected to a first fixed electric potential, and the second shielding units are connected to a second fixed electric potential.

### Claim 14 (depends on 13)

The display panel according to claim 13, wherein the first fixed electric potential and the second fixed electric potential are a same electric potential, and at least a portion of adjacent first shielding units and second shielding units are connected through third connecting parts.

### Claim 15 (depends on 13)

The display panel according to claim 13, wherein each of the first shielding units and each of the second shielding units are insulated from each other, the first fixed electric potential is greater than the second fixed electric potential, and wherein the driving circuit layer further comprises a first power supply line and a reset signal line, the first power supply line provides the first fixed electric potential, and the reset signal line provides the second fixed electric potential.

### Claim 16 (depends on 1)

The display panel according to claim 1, wherein the driving circuit layer comprises scan lines and an active layer and a gate layer of the driving transistors; at least a portion of the scan lines are located in the gate layer, a portion of the first connecting parts comprise first subsections and second subsections located between the first subsections and the first shielding units, and line widths of the first subsections are smaller than line widths of the second subsections.

### Claim 17 (depends on 16)

The display panel according to claim 16, wherein a portion of the second connecting parts comprise third subsections and fourth subsections, line widths of the third subsections are smaller than line widths of the fourth subsections, and the fourth subsections and the second subsections overlap with the scan lines in a direction perpendicular to the substrate.

### Claim 18 (depends on 1)

The display panel according to claim 1, wherein line widths of the first connecting parts are smaller than minimum widths of the first shielding units along a column direction, and line widths of the second connecting parts are smaller than minimum widths of the second shielding units along the column direction.

### Claim 19 (depends on 1)

The display panel according to claim 1, wherein the display panel further comprises fourth connecting parts, the second shielding units are arranged in rows and columns, each of the second connecting parts connects two of the second shielding units along a row direction, and the fourth connecting parts connect the second shielding units and the second connecting parts along a column direction.

### Claim 20

A display apparatus comprising a display panel having a first display region and a second display region, wherein the display panel comprises:
a substrate;
a first shielding layer located on a side of the substrate, wherein the first shielding layer comprises a plurality of first shielding units located in the first display region and a plurality of second shielding units located in the second display region, at least a portion of adjacent first shielding units are connected through first connecting parts, and a portion of adjacent second shielding units are connected through second connecting parts;
a driving circuit layer located on a side of the first shielding layer away from the substrate, wherein the driving circuit layer comprises a plurality of driving circuits, and each driving circuit comprises a driving transistor;
wherein first shielding units of the plurality of first shielding units and second shielding units of the plurality of second shielding units are in one-to-one correspondence with driving transistors, and orthographic projections of channel regions of active layers of the driving transistors on the first shielding layer are located in the first shielding units and the second shielding units.