Display panels and display devices

Abstract

To provide a display panel and a display device.SOLUTION: A display panel includes a display area and a non-display area. The display panel includes a substrate, a light-emitting unit, a partition structure, a packaging layer, and a dam structure. The light-emitting unit is provided on a substrate side and positioned in the display area. The partition structure is provided on the substrate side and positioned in the display area. The partition structure is provided with a plurality of partition openings accommodating the light-emitting unit. The packaging layer includes an organic packaging sub-layer covering the light-emitting unit. The dam structure is provided on the substrate side and positioned in the non-display area, and includes a first dam comprising a first metal layer.SELECTED DRAWING: Figure 2

Claims

1. It is a display panel, The display panel comprises a display area and a non-display area, circuit board and A light-emitting unit provided on the substrate side and located in the display area, A partition structure provided on the substrate side and located in the display area, having a plurality of partition openings for housing the light-emitting unit, A packaging layer including an organic packaging sublayer covering the light-emitting unit, The dam structure includes a first dam provided on the substrate side and located in the non-display area, and comprising a first metal layer, The first dam further includes a first insulating layer laminated on the first metal layer, The dam structure further includes a second dam adjacent to the first dam, and an overflow channel is formed between the first dam and the second dam. The second dam includes a second metal layer and a second insulating layer laminated on the second metal layer, The first insulating layer comprises a first organic insulating sublayer and a first inorganic insulating sublayer, and the first metal layer, the first organic insulating sublayer, and the first inorganic insulating sublayer are arranged in a laminated manner. The second insulating layer comprises a second organic insulating sublayer and a second inorganic insulating sublayer, and the second metal layer, the second organic insulating sublayer, and the second inorganic insulating sublayer are arranged in a laminated manner. A display panel characterized by the following features.

2. The display panel includes a drive circuit layer provided on the substrate side, the drive circuit layer includes a first conductive layer, a second conductive layer, a third conductive layer and a fourth conductive layer provided in a stack, and the first metal layer is provided in the same layer as at least one of the first conductive layer, the second conductive layer, the third conductive layer and the fourth conductive layer and is made of the same material. The display panel according to feature 1.

3. The second dam is located on the side of the first dam away from the display area, and the height of the second dam is greater than the height of the first dam. The display panel according to feature 2.

4. The second metal layer is provided in the same layer as at least one of the first conductive layer, the second conductive layer, the third conductive layer and the fourth conductive layer, and is made of the same material. The first metal layer includes a first metal sublayer and a second metal sublayer that are sequentially laminated along the direction away from the substrate, wherein the first metal sublayer is provided in the same layer as the third conductive layer and is made of the same material, and the second metal sublayer is provided in the same layer as the fourth conductive layer and is made of the same material. The second metal layer includes a third metal sublayer and a fourth metal sublayer that are stacked in order along the direction away from the substrate. The display panel according to feature 3.

5. The first metal sublayer and the third metal sublayer are provided in the same layer and are electrically connected to each other. The first metal layer and the second metal layer are provided with a gap between them, or The first metal layer and the second metal layer are electrically conductive to each other. The display panel according to feature 4.

6. The second metal sublayer and the fourth metal sublayer are provided in the same layer and are electrically connected to each other. The display panel according to feature 4.

7. The dam structure further includes a connecting layer, the connecting layer is provided between the first dam and the second dam, and the first metal layer and the second metal layer are electrically connected. The connecting layer includes a conductive region and a via hole region, the conductive region provides electrical conductivity between the first metal layer and the second metal layer, via holes are formed in the via hole region along a direction perpendicular to the substrate, and the overflow groove includes the via holes. The display panel according to feature 4.

8. The display panel includes a first planarization layer located in the display area, and the first planarization layer, the first organic insulating sublayer, and at least a portion of the second organic insulating sublayer are provided in the same layer and are made of the same material. The display panel further includes a second planarization layer located in the display area, the second organic insulating sublayer includes a first sublayer and a second sublayer, the first sublayer and the first planarization layer are provided in the same layer and made of the same material, and the second sublayer and the second planarization layer are provided in the same layer and made of the same material. The display panel according to feature 7.

9. The second sublayer extends from one end of the third metal sublayer until it covers a portion of the third metal sublayer, the fourth metal sublayer covers the remaining portion of the third metal sublayer, and the first sublayer covers the second sublayer and the second metal layer. The first organic insulating sublayer covers the first metal layer. The display panel according to feature 8.

10. The display panel further includes a pixel definition layer located in the display area, the pixel definition layer includes a pixel limiting portion and a pixel aperture surrounded by the pixel limiting portion, the pixel aperture is used for installing the light-emitting unit, the partition structure is provided on the side of the pixel limiting portion away from the substrate, the first inorganic insulating sublayer, the second inorganic insulating sublayer and the pixel definition layer are provided in the same layer and are made of the same material. The display panel according to feature 7.

11. The display panel further includes a third inorganic insulating sublayer provided between the first dam and the second dam, the third inorganic insulating sublayer, the first inorganic insulating sublayer, the second inorganic insulating sublayer, and the pixel definition layer are provided in the same layer and made of the same material, and the overflow groove is located on the side of the third inorganic insulating sublayer away from the substrate. The display panel according to feature 10.

12. The display panel further includes a third insulating layer, the third insulating layer being located between the dam structure and the substrate in a direction perpendicular to the substrate, the third inorganic insulating sublayer being attached to the side of the third insulating layer away from the substrate when the first metal layer and the second metal layer are spaced apart, and the third inorganic insulating sublayer being attached to the side of the connection layer away from the substrate when the connection layer provides electrical conductivity between the first metal layer and the second metal layer. The display panel according to feature 11.

13. The orthographic projection of the first metal layer on the substrate and the orthographic projection of the first organic insulating sublayer on the substrate are both located within the orthographic projection of the first inorganic insulating sublayer on the substrate, and the orthographic projection of the second metal layer on the substrate and the orthographic projection of the second organic insulating sublayer on the substrate are both located within the orthographic projection of the second inorganic insulating sublayer on the substrate. The display panel according to feature 7.

14. The packaging layer further includes a second inorganic packaging sublayer covering the organic packaging sublayer, the second inorganic packaging sublayer extending to the non-display region and covering the dam structure, and the orthographic projection of a portion of the second inorganic packaging sublayer located in the non-display region on the substrate overlaps with the orthographic projection of the first inorganic insulating sublayer on the substrate and the orthographic projection of the second inorganic insulating sublayer on the substrate. The display panel according to feature 7.

15. It is a display panel, The display panel comprises a display area and a non-display area, circuit board and A light-emitting unit provided on the substrate side and located in the display area, A packaging layer including an organic packaging sublayer covering the light-emitting unit, The dam structure includes a first dam provided on the substrate side and located in the non-display area, comprising a first metal layer and a first insulating layer arranged in a stack, The dam structure further includes a second dam adjacent to the first dam, and an overflow channel is formed between the first dam and the second dam. The second dam is located on the side of the first dam away from the display area, and the height of the second dam is greater than the height of the first dam. The second dam includes a second metal layer and a second insulating layer, which are stacked together, wherein the thickness of the first metal layer is equal to the thickness of the second metal layer, and the thickness of the second insulating layer is greater than the thickness of the first insulating layer. A display panel characterized by the following features.

16. The display panel further includes a third insulating layer, the third insulating layer is located between the dam structure and the substrate in a direction perpendicular to the substrate, a groove is formed on the side of the third insulating layer away from the substrate, and the overflow groove includes the groove. The display panel according to feature 15.

17. The first insulating layer comprises a first organic insulating sublayer and a first inorganic insulating sublayer, the second insulating layer comprises a second organic insulating sublayer and a second inorganic insulating sublayer, the first metal layer and the first organic insulating sublayer and the first inorganic insulating sublayer are provided in a laminated manner, and the second metal layer and the second organic insulating sublayer and the second inorganic insulating sublayer are provided in a laminated manner. The thickness of the second organic insulating sublayer in the direction perpendicular to the substrate is greater than the thickness of the first organic insulating sublayer in the direction perpendicular to the substrate. The display panel according to feature 15.

18. Includes a display panel according to any one of claims 1 to 17, A display device characterized by the following features.

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