DISPLAY PANEL AND DISPLAY DEVICE

Abstract

A display panel and a display device are provided. The display panel includes a substrate, a driving layer located on a side of the substrate, light-emitting elements and a light-blocking layer; the driving layer includes thin-film transistors, a first functional layer and a second functional layer, the first functional layer includes a first opening, the second functional layer includes a second opening, the first opening overlaps with the second opening in a first direction, and a size of the first opening is different from a size of the second opening in a second direction. The light-emitting element and the driving layer are located on a same side of the substrate, and the light-emitting element is electrically connected to at least part of the thin-film transistors of the driving layer. The light-blocking layer at least partially overlaps with a sidewall of the first opening in the second direction.

Description

Claims

1. A display panel comprising: a substrate;a driving layer located on a side of the substrate, wherein the driving layer comprises thin-film transistors, and the driving layer comprises a first functional layer and a second functional layer, the first functional layer comprises a first opening, the second functional layer comprises a second opening, wherein the first opening overlaps with the second opening in a first direction; a size of the first opening is different from a size of the second opening in a second direction; the first direction is vertical to a plane where the display panel is located, and the second direction intersects with the first direction;light-emitting elements, wherein the light-emitting elements and the driving layer are located on a same side of the substrate, and the light-emitting elements are electrically connected to at least part of the thin-film transistors in the driving layer; anda light-blocking layer, wherein the light-blocking layer at least partially overlaps with a sidewall of the first opening in the second direction.

2. The display panel according to claim 1, wherein the first functional layer comprises an inorganic material, and a minimum distance a between the sidewall of the first opening and the thin-film transistors in the second direction satisfies: a≥3 µm.

3. The display panel according to claim 1, wherein the light-blocking layer is at least partially arranged on a side of the driving layer facing away from the substrate, and a minimum distance b between a sidewall of the light-blocking layer close to the first functional layer and sidewalls of the thin-film transistors in the second direction satisfies: b≥2 µm.

4. The display panel according to claim 1, wherein the light-blocking layer comprises at least one of a light-absorbing layer and a reflecting layer, the light-absorbing layer comprises a light-absorbing material, and the reflecting layer comprises a light-reflecting material.

5. The display panel according to claim 4, wherein the light-blocking layer comprises the light-absorbing layer and the reflecting layer stacked in the second direction, and the light-absorbing layer is arranged on a side of the reflecting layer facing toward the first functional layer.

6. The display panel according to claim 1, wherein the light-blocking layer at least partially overlaps with a sidewall of the second opening in the second direction.

7. The display panel according to claim 1, wherein a material of the first functional layer comprises an inorganic material, a material of the second functional layer comprises an organic material, the second functional layer is located on a side of the first functional layer facing away from the substrate, and the size of the first opening is greater than the size of the second opening in the second direction.

8. The display panel according to claim 7, wherein the first functional layer comprises a first sub-layer and a second sub-layer, the second sub-layer is located on a side of the first sub-layer facing away from the substrate, the first opening comprises a first sub-opening and a second sub-opening, the first sub-opening is arranged corresponding to the first sub-layer, and the second sub-opening is arranged corresponding to the second sub-layer, and a size of the first sub-opening is less than a size of the second sub-opening in the second direction.

9. The display panel according to claim 7, wherein the driving layer further comprises an organic layer, the organic layer is arranged in the first opening and is in contact with the sidewall of the first opening, a material of the light-blocking layer comprises an organic material, and the light-blocking layer is in contact with a sidewall of the organic layer facing away from the first functional layer.

10. The display panel according to claim 9, wherein a sidewall of the organic layer facing away from the first functional layer is flush with a sidewall of the second opening.

11. The display panel according to claim 9, wherein the organic layer and the second functional layer are made of a same material and are formed integrally.

12. The display panel according to claim 11, wherein the second functional layer comprises a third sub-layer and a fourth sub-layer, the fourth sub-layer is located on a side of the third sub-layer facing away from the substrate, and the organic layer is formed with at least one of the third sub-layer and the fourth sub-layer integrally.

13. The display panel according to claim 7, wherein the light-blocking layer comprises a first sub-portion, a material of the first sub-portion comprises an inorganic material, and at least part of the first sub-portion is connected to the sidewall of the first opening.

14. The display panel according to claim 13, wherein a material of the first sub-portion comprises at least one of chromium oxide and metal.

15. The display panel according to claim 13, wherein the light-blocking layer further comprises a second sub-portion connected to the first sub-portion, a material of the second sub-portion comprises an organic material, and at least part of the second sub-portion is arranged on a side of the second functional layer facing away from the first functional layer.

16. The display panel according to claim 15, wherein the second sub-portion has a third opening, an overlapped portion of the first opening and the second opening overlaps with the third opening in the first direction, and the first sub-portion is connected to a sidewall of the third opening.

17. The display panel according to claim 15, wherein the first functional layer comprises a first sub-layer and a second sub-layer, the second sub-layer is located on a side of the first sub-layer facing away from the substrate, the first opening comprises a first sub-opening and a second sub-opening, the first sub-opening is arranged corresponding to the first sub-layer, and the second sub-opening is arranged corresponding to the second sub-layer; a size of the second sub-opening is greater than a size of the first sub-opening and is greater than the size of the second opening in the second direction; the first sub-portion is connected to a sidewall of the first sub-opening and is connected to a sidewall of the second sub-opening.

18. The display panel according to claim 17, wherein the second sub-portion is further connected to a sidewall of the second opening.

19. The display panel according to claim 1, wherein each thin-film transistor comprises an active layer, and the light-blocking layer overlaps with at least part of the active layer in the second direction.

20. A display device comprising a display panel, wherein the display panel comprises: a substrate;a driving layer located on a side of the substrate, wherein the driving layer comprises thin-film transistors, and the driving layer comprises a first functional layer and a second functional layer, the first functional layer comprises a first opening, the second functional layer comprises a second opening, wherein the first opening overlaps with the second opening in a first direction; a size of the first opening is different from a size of the second opening in a second direction; the first direction is vertical to a plane where the display panel is located, and the second direction intersects with the first direction;light-emitting elements, wherein the light-emitting elements and the driving layer are located on a same side of the substrate, and the light-emitting elements are electrically connected to at least part of the thin-film transistors in the driving layer; anda light-blocking layer, wherein the light-blocking layer at least partially overlaps with a sidewall of the first opening in the second direction.