CN-122003037-A - Display panel and electronic equipment

CN122003037ACN 122003037 ACN122003037 ACN 122003037ACN-122003037-A

Abstract

The embodiment of the application provides a display panel and electronic equipment, which relate to the technical field of display, wherein the display panel comprises a substrate and a pixel defining layer, the pixel defining layer is positioned on one side of the substrate and is provided with a pixel opening, the side wall of the pixel opening is continuously arranged, the side wall of the pixel opening is sequentially provided with a first chamfer and a second chamfer along the direction far away from the substrate, the first chamfer and the second chamfer are included angles formed by a tangent line of a point on the side wall of the pixel opening and a plane where the substrate is positioned, and the second chamfer is larger than or equal to the first chamfer. According to the application, the second chamfer on the side wall of the pixel opening is set to be larger than or equal to the first chamfer, so that the light-emitting unit is not easy to damage in the process of patterning the light-emitting unit, and the display effect of the display panel can be improved.

Inventors

REN XINGFENG
YAO YUAN
HUANG LIN
CAI RUIYANG
LI ZHONGJUN
QIN PENG

Assignees

维信诺科技股份有限公司
合肥维信诺科技有限公司

Dates

Publication Date: 20260508
Application Date: 20241106

Claims (14)

1. A display panel, the display panel comprising: a substrate; The pixel defining layer is positioned on one side of the substrate and is provided with a pixel opening, the side wall of the pixel opening is continuously arranged, a first chamfer and a second chamfer are sequentially arranged on the side wall of the pixel opening along the direction far away from the substrate, the first chamfer and the second chamfer are included angles formed by the tangent line of the point on the side wall of the pixel opening and the plane of the substrate, and the second chamfer is larger than or equal to the first chamfer; And the isolation structure is positioned on one side of the pixel defining layer away from the substrate, the isolation structure is enclosed to form an isolation opening, and the isolation opening is communicated with the pixel opening.
2. The display panel of claim 1, wherein the pixel defining layer comprises a first pixel defining sub-layer and a second pixel defining sub-layer disposed in a direction away from the substrate, the first pixel defining sub-layer having a first pixel sub-opening disposed thereon, the second pixel defining sub-layer having a second pixel sub-opening disposed thereon, a sidewall of the first pixel sub-opening having a first sub-cut angle, a sidewall of the second pixel sub-opening having a second sub-cut angle, the second sub-cut angle on the second pixel defining sub-layer being greater than or equal to the first sub-cut angle on the first pixel defining sub-layer, the second pixel sub-opening area covering the first pixel sub-opening area in a thickness direction of the substrate.
3. The display panel of claim 2, wherein the pixel defining layer further comprises a third pixel defining sub-layer on a side of the second pixel defining sub-layer remote from the substrate, the third pixel defining sub-layer having a third pixel sub-opening thereon, a sidewall of the third pixel sub-opening having a third sub-cut angle, the third sub-cut angle on the third pixel defining sub-layer being greater than or equal to the second sub-cut angle on the second pixel defining sub-layer, the third pixel sub-opening area covering the second pixel sub-opening area along a thickness direction of the substrate.
4. A display panel according to claim 3, wherein the etch selectivity of the first, second and third pixel-defining sub-layer materials decreases in sequence; Preferably, the densities of the first pixel defining sub-layer, the second pixel defining sub-layer and the third pixel defining sub-layer are sequentially decreased.
5. The display panel of claim 3, wherein the material of the first pixel-defining sub-layer comprises silicon nitride; Preferably, the material of the second pixel defining sub-layer comprises silicon oxynitride; preferably, the material of the third pixel defining sub-layer comprises silicon oxide.
6. A display panel according to claim 3, wherein at least two of the pixel defining layers comprise oxygen elements in a direction from the first pixel defining sub-layer to the third pixel defining sub-layer, and the content is gradually increased; Or gradually decreasing the nitrogen element content in the pixel defining layer along the direction from the first pixel defining sub-layer to the third pixel defining sub-layer.
7. A display panel according to claim 3, wherein the thickness of the pixel defining layer is greater than or equal to the thickness of the substrate And less than or equal to Preferably, the first pixel defining sub-layer has a thickness greater than or equal to the thickness of the substrate And less than or equal to And/or, in the thickness direction of the substrate, the second pixel defining sub-layer has a thickness greater than or equal to And less than or equal to And/or, in the thickness direction of the substrate, the thickness of the third pixel defining sub-layer is greater than or equal to And less than or equal to
8. The display panel according to any one of claims 1 to 7, further comprising: A light emitting unit at least partially located within the isolation opening; The packaging unit is positioned on one side of the light-emitting unit away from the substrate, and at least part of the packaging unit extends from the side surface of the isolation structure, which faces the isolation opening, to one side of the isolation structure away from the substrate; preferably, adjacent packaging units are arranged at intervals or overlapped with each other on one side of the isolation structure away from the substrate; preferably, a gap is formed between the packaging unit on the side of the isolation structure away from the substrate and the side of the isolation structure away from the substrate.
9. The display panel of claim 8, further comprising a second encapsulation layer on a side of the encapsulation unit away from the substrate and a third encapsulation layer on a side of the second encapsulation layer away from the substrate; Preferably, the materials of the encapsulation unit and the third encapsulation layer each comprise an inorganic material; Preferably, the material of the second encapsulation layer includes an organic material; Preferably, the isolation structure comprises a first isolation part and a second isolation part which are sequentially stacked along a direction away from the substrate, wherein the second isolation part is arranged on the first isolation part and extends outwards along the side wall of the first isolation part; preferably, the light emitting unit includes a first electrode, a light emitting portion, and a second electrode, which are sequentially stacked in a direction away from the substrate, and the pixel opening exposes a portion of the first electrode; Preferably, the second electrode is electrically connected with the first isolation part, and/or the isolation structure further comprises a third isolation part positioned at one side of the first isolation part facing the substrate, and the second electrode is electrically connected with the third isolation part; Preferably, the material of the third isolation part comprises molybdenum, and/or the material of the first isolation part comprises aluminum, and/or the material of the second isolation part comprises titanium.
10. A display panel, the display panel comprising: a substrate; The pixel defining layer comprises a plurality of layers of pixel defining sub-layers which are sequentially stacked, wherein the etching selection ratio of the materials of the layers of the pixel defining sub-layers is sequentially decreased along the direction away from the substrate; And the isolation structure is positioned on one side of the pixel defining layer away from the substrate, the isolation structure is enclosed to form an isolation opening, and the isolation opening is communicated with the pixel opening.
11. The display panel of claim 10, wherein the pixel defining layer comprises a first pixel defining sub-layer, a second pixel defining sub-layer, and a third pixel defining sub-layer stacked in sequence in a direction away from the substrate.
12. The display panel of claim 11, wherein the densities of the first, second, and third pixel-defining sublayers decrease sequentially; preferably, the material of the first pixel defining sub-layer comprises silicon nitride; Preferably, the material of the second pixel defining sub-layer comprises silicon oxynitride; preferably, the material of the third pixel defining sub-layer comprises silicon oxide.
13. The display panel according to claim 11, wherein at least two of the pixel defining layers include an oxygen element in a direction from the first pixel defining layer to the third pixel defining layer, and the content is gradually increased; Or along the direction from the first pixel defining sub-layer to the third pixel defining sub-layer, at least two layers of the pixel defining layers comprise nitrogen elements, and the content of the nitrogen elements is gradually decreased.
14. An electronic device, characterized in that the electronic device comprises the display panel of any one of claims 1-13.

Description

Display panel and electronic equipment Technical Field The application relates to the technical field of display, in particular to a display panel and electronic equipment. Background Organic LIGHT EMITTING (OLED) and flat display devices based on light emitting Diode (LIGHT EMITTING) technology have been widely used in various consumer electronic products such as mobile phones, televisions, notebook computers, and desktop computers, as they have advantages of high image quality, power saving, thin body, and wide application range. However, there are still some problems of the display panel that need to be solved. Disclosure of Invention In order to overcome the technical problems mentioned in the background of the application, embodiments of the present application provide a display panel, including: a substrate; The pixel defining layer is positioned on one side of the substrate and is provided with a pixel opening, the side wall of the pixel opening is continuously arranged, a first chamfer and a second chamfer are sequentially arranged on the side wall of the pixel opening along the direction far away from the substrate, the first chamfer and the second chamfer are included angles formed by the tangent line of the point on the side wall of the pixel opening and the plane of the substrate, and the second chamfer is larger than or equal to the first chamfer; And the isolation structure is positioned on one side of the pixel defining layer away from the substrate, the isolation structure is enclosed to form an isolation opening, and the isolation opening is communicated with the pixel opening. In some possible embodiments, the pixel defining layer includes a first pixel defining sub-layer and a second pixel defining sub-layer disposed in a direction away from the substrate, the first pixel defining sub-layer having a first pixel sub-opening disposed thereon, the second pixel defining sub-layer having a second pixel sub-opening disposed thereon, a sidewall of the first pixel sub-opening having a first sub-cut angle, a sidewall of the second pixel sub-opening having a second sub-cut angle, the second sub-cut angle on the second pixel defining sub-layer being greater than or equal to the first sub-cut angle on the first pixel defining sub-layer, and the second pixel sub-opening area covering the first pixel sub-opening area in a thickness direction of the substrate. In some possible embodiments, the pixel defining layer further includes a third pixel defining sub-layer located on a side of the second pixel defining sub-layer away from the substrate, a third pixel sub-opening is provided on the third pixel defining sub-layer, a sidewall of the third pixel sub-opening has a third sub-cut angle, and the third sub-cut angle on the third pixel defining sub-layer is greater than or equal to the second sub-cut angle on the second pixel defining sub-layer, and the third pixel sub-opening area covers the second pixel sub-opening area along a thickness direction of the substrate. In some possible embodiments, the etch selectivity of the first, second, and third pixel-defining sub-layer materials decreases sequentially; Preferably, the densities of the first pixel defining sub-layer, the second pixel defining sub-layer and the third pixel defining sub-layer are sequentially decreased. In some possible embodiments, the material of the first pixel defining sub-layer comprises silicon nitride; Preferably, the material of the second pixel defining sub-layer comprises silicon oxynitride; Preferably, the material of the third pixel defining sub-layer comprises silicon oxide; preferably, at least two of the pixel defining layers comprise oxygen elements in a direction from the first pixel defining sub-layer to the third pixel defining sub-layer, and the content is gradually increased; Or along the direction from the first pixel defining sub-layer to the third pixel defining sub-layer, at least two layers of the pixel defining layers comprise nitrogen elements, and the content of the nitrogen elements is gradually decreased. In some possible embodiments, the thickness of the pixel defining layer is greater than or equal to the thickness of the substrateAnd less than or equal to Preferably, the first pixel defining sub-layer has a thickness greater than or equal to the thickness of the substrateAnd less than or equal to And/or, in the thickness direction of the substrate, the second pixel defining sub-layer has a thickness greater than or equal toAnd less than or equal to And/or, in the thickness direction of the substrate, the thickness of the third pixel defining sub-layer is greater than or equal toAnd less than or equal to In some possible embodiments, the display panel further includes: A light emitting unit at least partially located within the isolation opening; The packaging unit is positioned on one side of the light-emitting unit away from the substrate, and at least part of the packaging unit extends from the side sur