Display panel and display device
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorJiajia Sun
Life of this patent
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Abstract
The present application provides a display panel and a display device. The display panel includes a display area, a hole-digging area, and a buffer area between the display area and the hole-digging area, wherein one or more retaining walls on the pixel defining layer in the buffer area, a top surface of the retaining wall is provided with a groove or a protrusion; the encapsulating layer is disposed on the light-emitting functional layer and the retaining wall, such that a contact area between a top surface of the retaining wall and the encapsulation layer is increased, thus avoiding the problem of film peeling between the retaining wall and the encapsulating layer.
Claims10
A display panel, comprising a display area, a hole-digging area, and a buffer area between the display area and the hole-digging area;
- the display panel comprising:
- a substrate;
- a driving circuit layer disposed on the substrate, and not disposed in the buffer area and the hole-digging area;
- a pixel defining layer disposed on the driving circuit layer;
- a light-emitting functional layer disposed on the pixel defining layer;
- a retaining wall disposed in the buffer area and on the pixel defining layer;
- and
- an encapsulation layer disposed on the light-emitting functional layer and the retaining wall, wherein
- a contact area between a top surface of the retaining wall and the encapsulation layer is larger than an orthographically projected area of the top surface of the retaining wall on the substrate;
- and
- the top surface of the retaining wall is formed with at least one of grooves recessing downward perpendicular to the substrate or protrusions protruding upward perpendicular to the substrate;
- the grooves or the protrusions formed on the top surface of the retaining wall are arranged in a plurality of rows;
- and
- the plurality of rows of the grooves or the protrusions formed on the top surface of the retaining wall have an intersection in a top view of the retaining wall.
A display device comprising a display panel, the display panel comprising a display area, a hole-digging area, and a buffer area between the display area and the hole-digging area;
- the display panel comprising:
- a substrate;
- a driving circuit layer disposed on the substrate, and not disposed in the buffer area and the hole-digging area;
- a pixel defining layer disposed on the driving circuit layer;
- a light-emitting functional layer disposed on the pixel defining layer;
- a retaining wall disposed in the buffer area and on the pixel defining layer;
- and
- an encapsulation layer disposed on the light-emitting functional layer and the retaining wall, wherein
- a contact area between a top surface of the retaining wall and the encapsulation layer is larger than an orthographically projected area of the top surface of the retaining wall on the substrate;
- and
- the top surface of the retaining wall is formed with at least one of grooves recessing downward perpendicular to the substrate or protrusions protruding upward perpendicular to the substrate;
- the grooves or the protrusions formed on the top surface of the retaining wall are arranged in a plurality of rows;
- and
- the plurality of rows of the grooves or the protrusions formed on the top surface of the retaining wall have an intersection in a top view of the retaining wall.
Dependencies are inferred from the claim text.