# US 2026/0107643 A1 · Display panel, manufacturing method for display panel, and electronic device

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- Number: US 2026/0107643 A1
- Document ID: US20260107643A1
- Status: Published application
- Kind: A1
- Application number: 19/422,314
- Filed: 2025-12-16
- Published: 2026-04-16
- Earliest claimed: 2024-06-24
- Assignees: Hefei Visionox Technology Co., Ltd.
- Applicants: Hefei Visionox Technology Co., Ltd.
- Inventors: Wenyu ZENG; Shundong BAO; Zhiwei ZHOU
- Web page: https://patentgrep.com/patent/US20260107643A1

## CPC

- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K 71/00: Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K 59/10: OLED displays
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/1201: {Manufacture or treatment}
- H10K 59/126: Shielding, e.g. light-blocking means over the TFTs
- H10K 59/80: Constructional details
- H10K 59/873: {Encapsulations}
- H10K 59/8731: {multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers}
- H10K 59/8792: {comprising light absorbing layers, e.g. black layers}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

Disclosed are a display panel and a manufacturing method therefor, and an electronic device. By forming isolation openings and light-transmitting openings separately at different etching processes, consistency of etching environment for a first display region and a second display region during the formation of a first isolation opening and a second isolation opening may be improved, ensuring that undercut lengths corresponding to the first isolation opening and the second isolation opening are the same, Thus, uniformity of lap joint effect between electrodes of light-emitting devices in the first display region and the second display region and an isolation structure may be improved, thereby improving uniformity of display effect in the first display region and the second display region.

## Claims

### Claim 1

A display panel, provided with a first display region and a second display region, comprising:
a substrate; and
an isolation structure, disposed on a side of the substrate and in the first display region and the second display region, wherein the isolation structure comprises a supporting portion and a shielding portion arranged on a side, facing away from the substrate, of the supporting portion; the isolation structure is provided with a plurality of isolation openings and at least one light-transmitting opening, the plurality of isolation openings comprise a first isolation opening arranged in the first display region and a second isolation opening arranged in the second display region, the at least one light-transmitting opening is arranged in the second display region; at the first isolation opening and the second isolation opening, an orthogonal projection of a side, facing the shielding portion, of the supporting portion on the substrate is located within an orthogonal projection of a side, facing the supporting portion, of the shielding portion on the substrate;
wherein a distance between an orthogonal projection of the shielding portion, located in the first display region and at the first isolation opening, on the substrate and an orthogonal projection of the supporting portion, located in the first display region and at the first isolation opening, on the substrate is SA21; a distance between an orthogonal projection of the shielding portion, located in the second display region and at the second isolation opening, on the substrate and an orthogonal projection of the supporting portion, located in the second display region and at the second isolation opening, on the substrate is SA22; and a difference between SA21 and SA22 is less than 0.1 μm.

### Claim 2 (depends on 1)

The display panel according to claim 1, further comprising a plurality of light-emitting devices, wherein the plurality of light-emitting devices comprise a plurality of first light-emitting devices and a plurality of second light-emitting devices, and the plurality of first light-emitting devices and the plurality of second light-emitting devices are configured to emit light of a first color;
the plurality of first light-emitting devices are located in the first display region, and a portion of a first light-emitting device is located within the first isolation opening; a distance between an orthogonal projection of the shielding portion, located in the first display region and at the first isolation opening corresponding to the first light-emitting device, on the substrate and an orthogonal projection of the supporting portion, located in the first display region and at the first isolation opening corresponding to the first light-emitting device, on the substrate is SA21; and
the plurality of second light-emitting devices are located in the second display region, and a portion of a second light-emitting device is located within the second isolation opening;
a distance between an orthogonal projection of the shielding portion, located in the second display region and at the second isolation opening corresponding to the second light-emitting device, on the substrate and an orthogonal projection of the supporting portion located in the second display region and at the second isolation opening corresponding to the second light-emitting device, on the substrate is SA22.

### Claim 3 (depends on 1)

The display panel according to claim 1, wherein
a side, close to the at least one light-transmitting opening, of the shielding portion located in the second display region is flush with a side, close to the at least one light-transmitting opening, of the supporting portion located in the second display region; or
an orthogonal projection of a side, close to the shielding portion, of the supporting portion located in the second display region and close to the at least one light-transmitting opening, on the substrate is located within an orthogonal projection of the shielding portion, located in the second display region and close to the at least one light-transmitting opening, on the substrate.

### Claim 4 (depends on 2)

The display panel according to claim 2, further comprising:
a plurality of encapsulation units, wherein at least part of an encapsulation unit is located within a corresponding isolation opening and extends from the corresponding isolation opening to a side, facing away from the substrate, of the isolation structure; the plurality of encapsulation units comprise a plurality of first encapsulation units located on a side, facing away from the substrate, of the plurality of second light-emitting devices; and
an orthogonal projection of a portion of the first encapsulation unit located on a side, facing away from the substrate, of the isolation structure, on the substrate is located within an orthogonal projection of the shielding portion on the substrate.

### Claim 5 (depends on 4)

The display panel according to claim 4, further comprising a pixel defining layer located in the first display region and the second display region and disposed between the isolation structure and the substrate, wherein the pixel defining layer is provided with a plurality of pixel openings in communication with the plurality of isolation openings correspondingly; and
the at least one light-transmitting opening comprises a plurality of light-transmitting openings, at a same light-transmitting opening:
a side of the pixel defining layer, a side of the shielding portion, a side of the supporting portion, and a side of the first encapsulation unit are flush with each other; or
the side of the shielding portion is flush with the side of the first encapsulation unit, an orthogonal projection of a side, close to the shielding portion, of the supporting portion, on the substrate is located within the orthogonal projection of the shielding portion on the substrate; and a side, close to the supporting portion, of the pixel defining layer is not coplanar with a side, facing the light-transmitting opening, of the supporting portion.

### Claim 6 (depends on 1)

The display panel according to claim 1, wherein the at least one light-transmitting opening comprises a plurality of light-transmitting openings, a light-transmitting opening is arranged between adjacent isolation openings; and a density of the plurality of isolation openings located in the first display region is the same as a density of the plurality of isolation openings located in the second display region.

### Claim 7 (depends on 1)

The display panel according to claim 1, wherein the isolation structure further comprises: a transition portion, disposed between the supporting portion and the substrate, wherein an orthogonal projection of an end, close to an isolation opening, of the transition portion on the substrate is located within the orthogonal projection of the shielding portion on the substrate; and a material of the isolation structure meets at least one of the following requirements: a material of the transition portion comprises at least one of Molybdenum (Mo) and Titanium (Ti), a material of the supporting portion comprises Aluminium (Al), and a material of the shielding portion comprises Ti;
the display panel further comprises a plurality of light-emitting devices at least partially located within the plurality of isolation opening correspondingly, the light-emitting device comprises a first electrode, a light-emitting unit and a second electrode sequentially stacked in a direction away from the substrate; the isolation structure is conductive, and the second electrode extends to be electrically connected to the isolation structure; and an orthogonal projection of the at least one light-transmitting opening on the substrate and an orthogonal projection of the first electrode on the substrate do not completely coincide;
the display panel further comprises a pixel defining layer disposed between the isolation structure and the substrate, the pixel defining layer is provided with a plurality of pixel openings, and an orthogonal projection of a pixel opening on the substrate is located within an orthogonal projection of an isolation opening on the substrate;
the display panel further comprises a plurality of encapsulation units, an encapsulation unit is located on a side, facing away from the substrate, of the second electrode, at least part of the encapsulation unit is located within the isolation opening and extends from the isolation opening to a side, facing away from the substrate, of the isolation structure; and
the display panel further comprises a second encapsulation layer and a third encapsulation layer located on a side, facing away from the substrate, of the plurality of encapsulation units, wherein the second encapsulation layer is located on the side, facing away from the substrate, of the plurality of encapsulation units, and the first isolation opening and the second isolation opening are filled with the second encapsulation layer; a material of the encapsulation unit and the third encapsulation layer comprises an inorganic material, a material of the second encapsulation layer comprises an organic material; and the at least one light-transmitting opening is filled with the second encapsulation layer.

### Claim 8

A display panel, provided with a first display region and a second display region, comprising
a substrate;
an isolation structure disposed on a side of the substrate, wherein the isolation structure comprises a supporting portion and a shielding portion sequentially stacked in a direction away from the substrate, and an orthogonal projection of a side, facing the shielding portion, of the supporting portion, on the substrate is located within an orthogonal projection of the shielding portion on the substrate; the isolation structure is provided with a plurality of isolation openings and at least one light-transmitting opening, the plurality of isolation openings comprise a plurality of first isolation openings and a plurality of second isolation openings, the plurality of first isolation openings are arranged in the first display region, and the plurality of second isolation openings and the at least one light-transmitting opening are arranged in the second display region; and
a plurality of light-emitting devices, wherein the plurality of light-emitting devices comprise a plurality of first light-emitting devices and a plurality of second light-emitting devices emitting light of a first color, the plurality of first light-emitting devices are disposed in the first display region, the plurality of second light-emitting devices are disposed in the second display region, a portion of a first light-emitting device is located within a first isolation opening correspondingly, a portion of a second light-emitting device is located within a second isolation opening correspondingly;
wherein an orthogonal projection of a side, facing the substrate, of the supporting portion, on the substrate is a first orthogonal projection, an orthogonal projection of the shielding portion on the substrate is a second orthogonal projection; along a first direction, a distance between an edge of the first orthogonal projection and an edge of the second orthogonal projection at the first isolation opening corresponding to the first light-emitting device is SA21; a distance between an edge of the first orthogonal projection and an edge of the second orthogonal projection at the second isolation opening corresponding to the second light-emitting device is SA22; and SA21 is greater than SA22.

### Claim 9 (depends on 8)

The display panel according to claim 8, wherein the at least one light-transmitting opening comprises a plurality of light-transmitting openings, along the first direction, a distance between an edge of the first orthogonal projection and an edge of the second orthogonal projection at the light-transmitting opening is SA0, and SA0 is greater than SA21.

### Claim 10 (depends on 9)

The display panel according to claim 9, wherein the plurality of light-emitting devices further comprise a plurality of third light-emitting devices and a plurality of fourth light-emitting devices emitting light of a second color, the second color light is different from the first color light;
the plurality of third light-emitting devices are disposed in the first display region, a portion of a third light-emitting device is located within a first isolation opening correspondingly, and a distance between an edge of the first orthogonal projection and an edge of the second orthogonal projection at the first isolation opening corresponding to the third light-emitting device is SA23; and
the plurality of fourth light-emitting devices are disposed in the second display region, a portion of a fourth light-emitting device is located within a third isolation opening correspondingly, and a distance between an edge of the first orthogonal projection and an edge of the second orthogonal projection at the second isolation opening corresponding to the fourth light-emitting device is SA24; and
SA23 is greater than SA24, SA21 is greater than SA23, SA22 is greater than SA24, a difference between SA0 and SA21 is less than a difference between SA0 and SA23, and a difference between SA0 and SA22 is less than a difference between SA0 and SA24.

### Claim 11 (depends on 10)

The display panel according to claim 10, wherein the plurality of light-emitting devices further comprise a plurality of fifth light-emitting devices and a plurality of sixth light-emitting devices emitting light of a third color, the first color, the second color and the third color are different from each other;
the plurality of fifth light-emitting devices are disposed in the first display region, a portion of a fifth light-emitting device is located within a first isolation opening correspondingly, a distance between an edge of the first orthogonal projection and an edge of the second orthogonal projection at the first isolation opening corresponding to the fifth light-emitting device is SA25;
the plurality of sixth light-emitting devices are disposed in the second display region, a portion of a sixth light-emitting device is located within a second isolation opening correspondingly, a distance between an edge of the first orthogonal projection and an edge of the second orthogonal projection at the second isolation opening corresponding to the sixth light-emitting device is SA26; and
SA25 is greater than SA26, SA23 is greater than SA25, SA24 is greater than SA26, a difference between SA0 and SA23 is less than a difference between SA0 and SA25, and a difference between SA0 and SA24 is less than a difference between SA0 and SA26.

### Claim 12 (depends on 11)

The display panel according to claim 11, wherein SA0>SA21>SA22>SA23>SA24>SA25>SA26.

### Claim 13 (depends on 9)

The display panel according to claim 9, wherein
a difference between SA21 and SA22 is less than or equal to 0.4 μm; or
a difference between SA0 and SA21 ranges from 0.1 μm to 0.4 μm; or
the difference between SA21 and SA22 is less than or equal to 0.4 μm and the difference between SA0 and SA21 ranges from 0.1 μm to 0.4 μm.

### Claim 14 (depends on 8)

The display panel according to claim 8, further comprising
a plurality of encapsulation units, wherein at least part of an encapsulation unit is located within a corresponding isolation opening and extends from the corresponding isolation opening to a side, facing away from the substrate, of the isolation structure, and the plurality of encapsulation units comprise a plurality of first encapsulation units located on a side, facing away from the substrate, of the plurality of second light-emitting devices; and
an orthogonal projection of a portion of the first encapsulation unit located on the side, facing away from the substrate, of the isolation structure, on the substrate is located within the second orthogonal projection.

### Claim 15 (depends on 14)

The display panel according to claim 14, wherein the at least one light-transmitting opening comprises a plurality of light-transmitting openings, at a same light-transmitting opening:
a side of the shielding portion, a side of the supporting portion and a side of a first encapsulation unit are flush with each other; or
the side of the shielding portion is flush with the side of the first encapsulation unit, and an orthogonal projection of a side, facing the shielding portion, of the supporting portion, on the substrate is located within the orthogonal projection of the shielding portion on the substrate.

### Claim 16 (depends on 14)

The display panel according to claim 14, wherein
the display panel further comprises a pixel defining layer located in the first display region and the second display region, and disposed between the isolation structure and the substrate, wherein the pixel defining layer is provided with a plurality of pixel openings in communication with the plurality of isolation openings correspondingly;
the at least one light-transmitting opening comprises a plurality of light-transmitting openings, at the same light-transmitting opening:
a side of the pixel defining layer, a side of the shielding portion, a side of the supporting portion, and a side of the first encapsulation unit are flush with each other; or
a side, close to the supporting portion, of the pixel defining layer is not coplanar with a side, facing the light-transmitting opening, of the supporting portion.

### Claim 17 (depends on 8)

The display panel according to claim 8, wherein the isolation structure further comprises
a transition portion, disposed between the supporting portion and the substrate, wherein an orthogonal projection of an end, facing the supporting portion, of the transition portion, on the substrate is located within the orthogonal projection of the transition portion on the substrate; and
a material of the isolation structure meets at least one of the following requirements: a material of the transition portion comprises at least one of Molybdenum (Mo) and Titanium (Ti), a material of the supporting portion comprises Aluminium (Al), and a material of the shielding portion comprises Ti.

### Claim 18

A manufacturing method for a display panel, wherein the display panel is provided with a first display region and a second display region, and the method comprises:
providing a substrate;
forming an isolation material layer on a side of the substrate, wherein the isolation material layer is located in the first display region and the second display region;
etching the isolation material layer in a first etching step to form a plurality of isolation openings, wherein the plurality of isolation openings comprise a first isolation opening arranged in the first display region and a second isolation opening arranged in the second display region; and covering and protecting the plurality of isolation openings by other film layers in a second etching step and etching the isolation material layer to form at least one light-transmitting opening; or
etching the isolation material layer in a first etching step to form at least one light-transmitting opening, wherein the at least one light-transmitting opening is arranged in the second display region; and covering and protecting the at least one light-transmitting opening by other film layers in a second etching step and etching the isolation material layer to form a plurality of isolation openings.

### Claim 19 (depends on 18)

The method according to claim 18, wherein
the first etching step comprises:
etching the isolation material layer to form the plurality of isolation openings, wherein the plurality of isolation openings comprise the first isolation opening located in the first display region and the second isolation opening located in the second display region;
forming a plurality of light-emitting devices and a plurality of encapsulation units disposed in the plurality of isolation openings, wherein the plurality of encapsulation units are located on a side, facing away from the substrate, of the plurality of light-emitting devices; and
the second etching step comprises:
covering and protecting the plurality of isolation openings by the plurality of encapsulation units, and etching the isolation material layer to form the at least one light-transmitting opening located in the second display region.

### Claim 20 (depends on 18)

The method according to claim 18, wherein
the first etching step comprises:
etching the isolation material layer to form the plurality of isolation openings, wherein the plurality of isolation openings comprise the first isolation opening located in the first display region and the second isolation opening located in the second display region; and
covering the first isolation opening and the second isolation opening with an etching resistant material; and
the second etching step comprises:
covering and protecting the plurality of isolation openings by the etching resistant material, and etching the isolation material layer to form the at least one light-transmitting opening located in the second display region; and
removing the etching resistant material;
wherein after the removing the etching resistant material, the method further comprises:
forming a plurality of light-emitting devices and a plurality of encapsulation units located in the plurality of isolation openings; wherein the plurality of encapsulation units are located on a side, facing away from the substrate, of the plurality of light-emitting devices.