显示面板及显示装置

Abstract

本实用新型提供了一种显示面板及显示装置，该显示面板包括基底、平坦层、阳极层、像素定义层以及发光层；平坦层设有多个凹槽；阳极层包括多个阳极，每一阳极设置于相邻的两凹槽之间；像素定义层包括多个第一堤坝，每一第一堤坝设于对应的凹槽内，并与凹槽的侧壁之间形成容纳槽；发光层设置于像素定义层上，覆盖至少部分阳极并填充容纳槽；在喷墨沉积发光层的过程中，用于形成发光层的墨水可在容纳槽内局部滞留，从而缓解墨水在像素开口边缘的异常堆积与向外扩散问题，提升发光层的膜厚均匀性，进而改善显示面板的发光一致性和显示效果。

Claims

1. A display panel, characterized in that, include: Base; A flat layer is disposed on the substrate and has multiple grooves; An anode layer is disposed on the flat layer and includes a plurality of anodes, each anode being disposed between two adjacent grooves; A pixel definition layer is disposed on the anode layer and includes a plurality of first dams, each of the first dams being disposed in a corresponding groove, and a receiving groove being provided between the first dam and the sidewall of the corresponding groove. as well as A light-emitting layer is disposed on the pixel definition layer and includes a plurality of light-emitting parts, each of the light-emitting parts being disposed on a corresponding anode, the light-emitting parts covering at least a portion of the anode and filling the receiving groove.

2. The display panel of claim 1, wherein, The width of the groove on the side furthest from the substrate is greater than the width of the groove on the side closest to the substrate.

3. The display panel of claim 2, wherein, The angle between the sidewall of the groove and the bottom surface of the groove is greater than or equal to 110 degrees and less than or equal to 140 degrees.

4. The display panel of claim 2, wherein, The sidewall of the groove has an arc-shaped cross-section along the thickness direction of the display panel and bends away from the center of the groove.

5. The display panel of claim 4, wherein, The ratio of the width of the groove to the depth of the groove is greater than or equal to 12 and less than or equal to 50.

6. The display panel of claim 5, wherein, The width of the groove is greater than or equal to 6 micrometers and less than or equal to 10 micrometers; the depth of the groove is greater than or equal to 0.2 micrometers and less than or equal to 0.5 micrometers.

7. The display panel of claim 1, wherein, The sidewall of the groove includes a first part and a second part connected to each other, wherein the second part is disposed on the side of the first part away from the substrate; The first part is in contact with the first dam, the second part is spaced apart from the first dam, and the receiving trough is located between the first dam and the second part.

8. The display panel of claim 7, wherein, The distance between the anode and the substrate on the side away from the substrate is greater than the distance between the second portion and the substrate on the side away from the substrate.

9. The display panel of claim 7, wherein, The ratio of the width of the receiving groove to the depth of the receiving groove is greater than or equal to 3.33 and less than or equal to 60.

10. The display panel of claim 9, wherein, The width of the receiving groove is greater than or equal to 1 micrometer and less than or equal to 3 micrometers; the depth of the receiving groove is greater than or equal to 0.05 micrometers and less than or equal to 0.3 micrometers.

11. The display panel of claim 1, wherein, In adjacent anodes and grooves, the anode covers the sidewall of the groove, and the first dam covers at least a portion of the anode; Alternatively, in adjacent anodes and grooves, the anode exposes the sidewall of the groove, and the anode is spaced apart from the first dam.

12. A display device comprising: The display device includes a display panel as claimed in any one of claims 1 to 11.

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