Display panel and display panel mother board

Abstract

The display panel comprises a display area and an anti-cracking area, the display area comprises a middle display area and an edge display area arranged around the middle display area, and the anti-cracking area is located on the side, away from the display area, of the edge display area. The display panel further comprises a substrate, a driving array layer, a first light shielding layer, a second light shielding layer and a first organic flat layer. The first shading layer is arranged on one side, far away from the substrate, of the driving array layer; the second light shielding layer is arranged on one side, far away from the substrate, of the first light shielding layer; the first organic flat layer is located between the first light shielding layer and the second light shielding layer; wherein one part of the first organic flat layer covers the edge of the driving array layer, and one part of the first organic flat layer exceeds one edge, far away from the display area, of the anti-cracking area. The display panel has the advantage that the problem that the color brightness of a display picture of a display panel in a conventional scheme is not uniform can be solved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and a display panel motherboard. Background Technology

[0002] To achieve privacy protection for display panels, conventional solutions incorporate at least two light-shielding layers in the encapsulation layer, with openings in these layers corresponding to the light-emitting devices. This provides privacy protection from a wide viewing angle. However, the addition of light-shielding and organic layers increases the topographic differences between the peripheral and display areas of the display panel. During manufacturing, material from the organic layer in the display area tends to flow to the peripheral areas, resulting in uneven film thickness across the display area and causing uneven color and brightness in the displayed image. Summary of the Invention

[0003] Embodiments of this application provide a display panel and a display panel motherboard to improve the problem of uneven color brightness in the display screen of conventional display panels.

[0004] In a first aspect, embodiments of this application provide a display panel including a display area and a crack-resistant area. The display area includes a central display area and an edge display area surrounding the central display area. The crack-resistant area is located on the side of the edge display area away from the display area. The display panel further includes: Substrate; A driving array layer, wherein the driving array layer is disposed on the surface of the substrate; A first light-shielding layer is disposed on the side of the driving array layer away from the substrate; A second light-shielding layer is disposed on the side of the first light-shielding layer away from the substrate; A first organic planarization layer is located between the first light-shielding layer and the first light-shielding layer; Wherein, a portion of the first organic planarization layer covers the edge of the driving array layer, and a portion of the first organic planarization layer extends beyond an edge of the anti-crack zone away from the display area.

[0005] Furthermore, the display panel also includes a second organic planarization layer, which is disposed on a surface of the first organic planarization layer away from the substrate, and a portion of the second organic planarization layer extends beyond an edge of the anti-crack area away from the display area; The second light-shielding layer is disposed on a surface of the second organic planarization layer that is away from the substrate.

[0006] Furthermore, the edge of at least one of the first organic planarization layer and the second organic planarization layer is flush with the edge of the substrate.

[0007] Furthermore, the display panel also includes a third organic planarization layer, which is disposed on a surface of the first light-shielding layer near the substrate, and a portion of the third organic planarization layer extends beyond an edge of the anti-crack area away from the display area; The first light-shielding layer is disposed on a surface of the third organic planarization layer away from the substrate.

[0008] Furthermore, the edge of at least one of the first organic planarization layer and the third organic planarization layer is flush with the edge of the substrate.

[0009] Furthermore, the display panel also includes: A fourth organic planarization layer is disposed on a surface of the first organic planarization layer away from the substrate, wherein the second light-shielding layer is disposed on a surface of the fourth organic planarization layer away from the substrate; The fifth organic planarization layer is disposed on a surface of the first light-shielding layer near the substrate; Wherein, a portion of the fourth organic planarization layer extends beyond one edge of the anti-crack area away from the display area, and a portion of the fifth organic planarization layer extends beyond one edge of the anti-crack area away from the display area.

[0010] Furthermore, the edge of at least one of the first organic planarization layer, the fourth organic planarization layer, and the fifth organic planarization layer is flush with the edge of the substrate.

[0011] Furthermore, the thickness of the fourth organic planarization layer is greater than the thickness of the first organic planarization layer.

[0012] Furthermore, the thickness of a portion of the first organic planarization layer located within the edge display area is less than the thickness of a portion of the first organic planarization layer located within the middle display area.

[0013] Secondly, embodiments of this application provide a display panel motherboard, the display panel motherboard including the display panel, the display panel motherboard including a cutting area surrounding a crack-resistant area of ​​the display panel, and a portion of the first organic planarization layer located within the cutting area.

[0014] The beneficial effects of this application are: This application provides a display panel in which a first organic planarization layer is positioned between a first light-shielding layer and the first light-shielding layer, and a portion of the first organic planarization layer covers the edge of the driving array layer, with a portion of the first organic planarization layer extending beyond the anti-crack zone away from an edge of the display area. This reduces the topographical difference between the display area and the surrounding area of ​​the display panel, increases the difficulty of material flow from the first organic planarization layer located in the edge display area to the surrounding area, reduces the amount of material flowing from the edge display area to the surrounding area during the manufacturing of the display panel, and reduces the difference in film thickness between the edge display area and the display area, thereby improving the problem of uneven color brightness in the displayed image.

[0015] This application provides a display panel motherboard, which includes a cutting area surrounding a crack-resistant area of ​​the display panel. A first organic planarization layer is located between a first light-shielding layer and the first light-shielding layer. A portion of the first organic planarization layer covers the edge of the driving array layer, and a portion of the first organic planarization layer extends beyond the crack-resistant area away from an edge of the display area, with the portion of the first organic planarization layer located within the cutting area. This extends a portion of the first organic planarization layer into the cutting area, reducing the topographical difference between the display area and the surrounding area of ​​the display panel. It increases the difficulty of material flow from the first organic planarization layer located in the edge display area to the surrounding area. During display panel manufacturing, it reduces the amount of material flowing from the edge display area to the surrounding area of ​​the first organic planarization layer, reducing the difference in film thickness between the edge display area and the middle display area, thereby improving the problem of uneven color brightness in the displayed image. Attached Figure Description

[0016] Figure 1 This is a top view of the display panel of this application; Figure 2 yes Figure 1 A schematic diagram of the first structure of the display panel shown; Figure 3 yes Figure 1 A schematic diagram of the second structure of the display panel shown; Figure 4 yes Figure 1 A schematic diagram of the third structure of the display panel shown; Figure 5 This is a schematic diagram of the display panel motherboard of this application.

[0017] Explanation of reference numerals in the attached figures: 10 - Display panel; 100 - Array substrate; 110 - Substrate; 120 - Driving array layer; 200 - First light-shielding layer; 300 - Second light-shielding layer; 400 - First organic planarization layer; 500 - Second organic planarization layer; 600 - Third organic planarization layer; 700 - Fourth organic planarization layer; 800 - Fifth organic planarization layer; 900 - Sixth organic planarization layer; 1000 - Organic light-emitting layer; 1010 - Encapsulation layer; 1020 - Barrier; 20 - Display panel motherboard.

[0018] AA - Display area, AA1 - Center display area, AA2 - Edge display area; NA - Peripheral area, NA1 - Crack prevention area, NA2 - Encapsulation area, NA3 - Cutting area. Detailed Implementation

[0019] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The technical solutions described below are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0020] Furthermore, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words indicate two or more unless otherwise expressly specified.

[0021] The first embodiment of this application provides a first display panel 10, see reference. Figure 1 , Figure 2 The display panel 10 includes a display area AA and a peripheral area NA. The display area AA includes a central display area AA1 and an edge display area AA2 surrounding the central display area AA1. The peripheral area NA includes a crack-resistant area NA1 located on the side of the edge display area AA2 away from the display area AA. The display panel 10 also includes a substrate 110, a driving array layer 120, a first light-shielding layer 200, a second light-shielding layer 300, and a first organic planarization layer 400. The driving array layer 120 is disposed on the surface of the substrate 110. The first light-shielding layer... Layer 200, wherein the first light-shielding layer 200 is disposed on the side of the driving array layer 120 away from the substrate 110; second light-shielding layer 300, wherein the second light-shielding layer 300 is disposed on the side of the first light-shielding layer 200 away from the substrate 110; first organic planarization layer 400, wherein the first organic planarization layer 400 is located between the first light-shielding layer 200 and the first light-shielding layer 200; wherein a portion of the first organic planarization layer 400 covers the edge of the driving array layer 120, and a portion of the first organic planarization layer 400 extends beyond the anti-crack zone NA1 away from an edge of the display area AA.

[0022] Because the display panel has an added light-shielding layer and an organic layer, the terrain differences between the peripheral area and the display area of ​​the display panel increase. During the manufacturing process of the display panel, the material of the organic layer located in the display area of ​​the display panel will flow to the peripheral area of ​​the display panel, resulting in uneven film thickness in different areas of the display area of ​​the display panel, causing uneven color and brightness of the displayed image. Therefore, the technical solution of this application provides a display panel 10, which, by setting a first organic planarization layer 400 between the first light-shielding layer 200 and the first light-shielding layer 200, and setting a portion of the first organic planarization layer 400 to cover the edge of the driving array layer 120, and setting a portion of the first organic planarization layer 400 to extend beyond the anti-crack zone NA1 away from the edge of the display area AA, can reduce the topographic difference between the display area AA and the peripheral area NA of the display panel 10, increase the difficulty of material flow from the first organic planarization layer 400 located in the edge display area AA2 to the peripheral area NA, reduce the material flow from the edge display area AA2 to the peripheral area NA when manufacturing the display panel 10, reduce the difference in film thickness between the edge display area AA2 and the middle display area AA, thereby improving the problem of uneven color brightness of the display screen of the display panel 10.

[0023] In this embodiment, the peripheral area further includes an encapsulation area NA2, which is located between the edge display area and the crack prevention area.

[0024] It is understood that the crack-resistant zone of the display panel is an area used to prevent cracks from extending towards the display area and to avoid moisture intrusion. In this embodiment, the crack-resistant zone is provided with multiple baffles 1020, and the first organic planarization layer covers the baffles 1020.

[0025] In this embodiment, reference Figure 2 The edge L1 of the first organic planarization layer 400 is flush with the edge L0 of the substrate 110.

[0026] It is understandable that when manufacturing the display panel 10, the display panel motherboard 20 is cut to form multiple display panels 10. Therefore, the display panel motherboard 20 has a cutting area NA3. In the finished display panel 10 obtained after cutting, there is no cutting area NA3. At this time, the edge L0 of the substrate 110 is the cutting path of the display panel 10. In this embodiment, by setting the edge L1 of the first organic planarization layer 400 to be flush with the edge L0 of the substrate 110, that is, a portion of the first organic planarization layer 400 is formed within the cutting area NA3, the area of ​​the substrate 110 outside the display area AA covered by the first organic planarization layer 400 is increased. This reduces the topographic difference between the display area AA and the peripheral area NA of the display panel 10, and increases the difficulty of material flow from the first organic planarization layer 400 located in the edge display area AA2 to the peripheral area NA. When manufacturing the display panel 10, this also reduces the amount of material flowing from the edge display area AA2 to the peripheral area NA of the first organic planarization layer 400, and reduces the difference in film thickness between the edge display area AA2 and the middle display area AA, thereby improving the problem of uneven color brightness in the display image of the display panel 10.

[0027] It should be noted that when manufacturing the display panel 10, if it is necessary to make the edge L1 of the first organic planarization layer 400 flush with the edge L0 of the substrate 110, then the first organic planarization layer 400 must at least partially cover a portion of the substrate 110 located within the cutting area NA3, so that during cutting, the edge L1 of the first organic planarization layer 400 can be ensured to be flush with the edge L0 of the substrate 110.

[0028] In this embodiment, the thickness of a portion of the first organic planarization layer 400 located within the edge display area AA2 is less than the thickness of a portion of the first organic planarization layer 400 located within the middle display area AA1.

[0029] In this embodiment, a portion of the first organic planarization layer 400 located within the edge display area AA2, away from the substrate 110, is lower than a portion of the first organic planarization layer 400 located within the display area AA, away from the substrate 110.

[0030] It is understood that, in this embodiment, a surface of a portion of the first organic planarization layer 400 located within the edge display area AA2 that is away from the substrate 110 forms a first angle with an extension surface of a portion of the first organic planarization layer 400 located within the display area AA that is away from the substrate 110.

[0031] In this embodiment, the display panel 10 includes an array substrate 100, which includes the substrate 110 and the driving array layer 120.

[0032] In this embodiment, the display panel 10 further includes an organic light-emitting layer 1000, which is disposed on the array substrate 100.

[0033] In this embodiment, the display panel 10 further includes an encapsulation layer 1010, which covers the organic light-emitting layer 1000, and the first light-shielding layer 200 is disposed on the side of the encapsulation layer 1010 away from the substrate 110.

[0034] In this embodiment, the display panel 10 further includes a sixth organic planarization layer 900, which covers the second light-shielding layer 300.

[0035] The second embodiment of this application provides a second type of display panel 10. The second embodiment is similar to the first embodiment, but differs from the first embodiment in that, in reference to... Figure 1 , Figure 2 The display panel 10 further includes a second organic planarization layer 500, which is disposed on a surface of the first organic planarization layer 400 away from the substrate 110, and a portion of the second organic planarization layer 500 extends beyond an edge of the anti-crack area NA1 away from the display area AA; wherein, the second light-shielding layer 300 is disposed on a surface of the second organic planarization layer 500 away from the substrate 110.

[0036] Because the display panel has an added light-shielding layer and an organic layer, the terrain differences between the peripheral area and the display area of ​​the display panel increase. During the manufacturing process of the display panel, the material of the organic layer located in the display area of ​​the display panel will flow to the peripheral area of ​​the display panel, resulting in uneven film thickness in different areas of the display area of ​​the display panel, causing uneven color and brightness of the displayed image. Therefore, the technical solution of this application provides a display panel 10, which, by disposing the second organic planarization layer 500 on a surface of the first organic planarization layer 400 away from the substrate 110, and a portion of the second organic planarization layer 500 extends beyond the anti-crack area NA1 at an edge away from the display area AA; based on the first embodiment, can further reduce the topographic difference between the display area AA and the peripheral area NA of the display panel 10, increase the difficulty of material flow from the second organic planarization layer 500 located in the edge display area AA2 to the peripheral area NA, reduce the material flow from the edge display area AA2 to the peripheral area NA when manufacturing the display panel 10, reduce the difference in film thickness between the edge display area AA2 and the middle display area AA, thereby more effectively improving the problem of uneven color brightness in the display image of the display panel 10.

[0037] In this embodiment, the edge of at least one of the first organic planarization layer 400 and the second organic planarization layer 500 is flush with the edge L0 of the substrate 110.

[0038] In this embodiment, the edge L1 of the first organic planarization layer 400 is flush with the edge L0 of the substrate 110, and a portion of the first organic planarization layer 400 extends beyond the edge L2 of the second organic planarization layer 500.

[0039] In this embodiment, reference Figure 2 The edges L1 of the first organic planarization layer 400 and L2 of the second organic planarization layer 500 are flush with the edge L0 of the substrate 110.

[0040] It is understandable that during the fabrication of the display panel 10, the display panel motherboard 20 is cut to form multiple display panels 10. Therefore, the display panel motherboard 20 has a cutting area NA3. In the finished display panel 10 obtained after cutting, there is no cutting area NA3, and the edge L0 of the substrate 110 at this time is the cutting path of the display panel 10. In this embodiment, by setting the edge L1 of the first organic planarization layer 400 and the edge L2 of the second organic planarization layer 500 to be flush with the edge L0 of the substrate 110, that is, a part of the first organic planarization layer 400 and a part of the second organic planarization layer 500 are formed within the cutting area NA3, the area of ​​the substrate 110 outside the display area AA covered by the first organic planarization layer 400 and the second organic planarization layer 500 is increased. This can reduce the topographic difference between the display area AA and the peripheral area NA of the display panel 10, and increase the difficulty of the material of the first organic planarization layer 400 and the second organic planarization layer 500 located in the edge display area AA2 flowing to the peripheral area NA.

[0041] In this embodiment, the thickness of a portion of the second organic planarization layer 500 located within the edge display area AA2 is less than the thickness of a portion of the second organic planarization layer 500 located within the middle display area AA1.

[0042] In this embodiment, a portion of the second organic planarization layer 500 located within the edge display area AA2, away from the substrate 110, is lower than a portion of the second organic planarization layer 500 located within the display area AA, away from the substrate 110.

[0043] It is understood that, in this embodiment, a surface of a portion of the second organic planarization layer 500 located within the edge display area AA2 that is away from the substrate 110 forms a second included angle with an extension surface of a portion of the second organic planarization layer 500 located within the display area AA that is away from the substrate 110.

[0044] The third embodiment of this application provides a third type of display panel 10. The third embodiment is similar to the first embodiment, but differs from the first embodiment in that, in reference to... Figure 1 , Figure 3 The display panel 10 further includes a third organic planarization layer 600, which is disposed on a surface of the first light-shielding layer 200 near the substrate 110, and a portion of the third organic planarization layer 600 extends beyond an edge of the anti-crack area NA1 away from the display area AA; wherein the first light-shielding layer 200 is disposed on a surface of the third organic planarization layer 600 away from the substrate 110.

[0045] Because the display panel has an added light-shielding layer and an organic layer, the terrain differences between the peripheral area and the display area of ​​the display panel increase. During the manufacturing process of the display panel, the material of the organic layer located in the display area of ​​the display panel will flow to the peripheral area of ​​the display panel, resulting in uneven film thickness in different areas of the display area of ​​the display panel, causing uneven color and brightness of the displayed image. Therefore, the technical solution of this application provides a display panel 10, which, by disposing the third organic planarization layer 600 on a surface of the first light-shielding layer 200 near the substrate 110, and with a portion of the third organic planarization layer 600 extending beyond the anti-crack area NA1 and away from the edge of the display area AA, can further reduce the topographic difference between the display area AA and the peripheral area NA of the display panel 10, and increase the difficulty of material flow from the third organic planarization layer 600 located in the edge display area AA2 to the peripheral area NA. When manufacturing the display panel 10, the material of the first organic planarization layer 400 and the third organic planarization layer 600 flowing from the edge display area AA2 to the peripheral area NA is reduced, and the difference in film thickness between the edge display area AA2 and the middle display area AA is reduced, thereby more effectively improving the problem of uneven color brightness in the display image of the display panel 10.

[0046] In this embodiment, the crack prevention zone is provided with multiple retaining walls 1020, and a third organic flat layer covers the retaining walls 1020.

[0047] In this embodiment, the edge of at least one of the first organic planarization layer 400 and the third organic planarization layer 600 is flush with the edge L0 of the substrate 110.

[0048] In this embodiment, the edge L3 of the third organic planarization layer 600 is flush with the edge L0 of the substrate 110, and a portion of the third organic planarization layer 600 extends beyond the edge L1 of the first organic planarization layer 400.

[0049] In this embodiment, reference Figure 3The edges L1 of the first organic planarization layer 400 and L3 of the third organic planarization layer 600 are flush with the edge L0 of the substrate 110.

[0050] It is understandable that during the fabrication of the display panel 10, the display panel motherboard 20 is cut to form multiple display panels 10. Therefore, the display panel motherboard 20 has a cutting area NA3. In the finished display panel 10 obtained after cutting, there is no cutting area NA3, and the edge L0 of the substrate 110 at this time is the cutting path of the display panel 10. In this embodiment, by setting the edge L1 of the first organic planarization layer 400 and the edge L3 of the third organic planarization layer 600 to be flush with the edge L0 of the substrate 110, that is, a part of the first organic planarization layer 400 and a part of the third organic planarization layer 600 are formed within the cutting area NA3, the area of ​​the substrate 110 outside the display area AA covered by the first organic planarization layer 400 and the third organic planarization layer 600 is increased. This can reduce the topographic difference between the display area AA and the peripheral area NA of the display panel 10, and increase the difficulty of the material of the first organic planarization layer 400 and the third organic planarization layer 600 located in the edge display area AA2 flowing to the peripheral area NA.

[0051] In this embodiment, the thickness of a portion of the third organic planarization layer 600 located within the edge display area AA2 is less than the thickness of a portion of the third organic planarization layer 600 located within the middle display area AA1.

[0052] In this embodiment, a portion of the third organic planarization layer 600 located within the edge display area AA2, away from the substrate 110, is lower than a portion of the third organic planarization layer 600 located within the display area AA, away from the substrate 110.

[0053] It is understood that, in this embodiment, a portion of the third organic planarization layer 600 located in the edge display area AA2, away from the substrate 110, forms a third angle with the extended surface of a portion of the third organic planarization layer 600 located in the display area AA, away from the substrate 110.

[0054] The fourth embodiment of this application provides a fourth type of display panel 10, see reference. Figure 1 , Figure 4The fourth embodiment is similar to the first embodiment, but differs in that the display panel 10 further includes a fourth organic planarization layer 700 and a fifth organic planarization layer 800. The fourth organic planarization layer 700 is disposed on a surface of the first organic planarization layer 400 away from the substrate 110, wherein the second light-shielding layer 300 is disposed on a surface of the fourth organic planarization layer 700 away from the substrate 110; the fifth organic planarization layer 800 is disposed on a surface of the first light-shielding layer 200 close to the substrate 110; wherein a portion of the fourth organic planarization layer 700 extends beyond an edge of the anti-crack region NA1 away from the display region AA, and a portion of the fifth organic planarization layer 800 extends beyond an edge of the anti-crack region NA1 away from the display region AA.

[0055] Because the display panel incorporates a light-shielding layer and an organic layer, the terrain differences between the peripheral area and the display area increase. During display panel manufacturing, material from the organic layer in the display area tends to flow to the peripheral area, resulting in uneven film thickness across different areas of the display area and causing uneven color and brightness in the displayed image. Therefore, this application provides a display panel 10 that, by placing a fourth organic planarization layer 700 on a surface of the first organic planarization layer 400 away from the substrate 110, and a fifth organic planarization layer 800 on a surface of the first light-shielding layer 200 close to the substrate 110, and by setting a portion of the fourth organic planarization layer 700 extending beyond the edge of the anti-crack zone NA1 away from the display area AA, and a portion of the fifth organic planarization layer 800 extending beyond the edge of the anti-crack zone NA1 away from the display area AA, further reduces the appearance of uneven color and brightness in the display panel compared to the first embodiment. The topographical difference between the display area AA and the peripheral area NA of the display panel 10 increases the difficulty of material flow from the fourth organic planarization layer 700 and the fifth organic planarization layer 800 located in the edge display area AA2 to the peripheral area NA. When manufacturing the display panel 10, the amount of material flowing from the edge display area AA2 to the peripheral area NA in the first organic planarization layer 400, the fourth organic planarization layer 700, and the fifth organic planarization layer 800 is reduced, and the difference in film thickness between the edge display area AA2 and the middle display area AA is reduced, thereby more effectively improving the problem of uneven color brightness in the display image of the display panel 10.

[0056] In this embodiment, the crack prevention zone is provided with multiple retaining walls 1020, and the fifth organic flat layer covers the retaining walls 1020.

[0057] In this embodiment, the edge of at least one of the first organic planarization layer 400, the fourth organic planarization layer 700, and the fifth organic planarization layer 800 is flush with the edge L0 of the substrate 110.

[0058] In this embodiment, the edge L5 of the fifth organic planarization layer 800 is flush with the edge L0 of the substrate 110, and a portion of the fifth organic planarization layer 800 extends beyond the edge L1 of the first organic planarization layer 400 and the edge L4 of the fourth organic planarization layer 700.

[0059] In this embodiment, the edge L5 of the fifth organic planarization layer 800 and the edge L1 of the first organic planarization layer 400 are flush with the edge L0 of the substrate 110, and a portion of the fifth organic planarization layer 800 and the edge L1 of the first organic planarization layer 400 extend beyond the edge L4 of the fourth organic planarization layer 700.

[0060] In this embodiment, reference Figure 4 The edge L5 of the fifth organic planarization layer 800 is flush with the edge L1 of the first organic planarization layer 400 and the edge L4 of the fourth organic planarization layer 700.

[0061] It is understandable that when manufacturing the display panel 10, the display panel motherboard 20 is cut to form multiple display panels 10. Therefore, the display panel motherboard 20 has a cutting area NA3. In the finished display panel 10 obtained after cutting, there is no cutting area NA3. At this time, the edge L0 of the substrate 110 is the cutting path of the display panel 10. In this embodiment, by setting the edges L5 of the fifth organic planarization layer 800, L1 of the first organic planarization layer 400, and L4 of the fourth organic planarization layer 700 to be flush with the edge L0 of the substrate 110, that is, a portion of the fifth organic planarization layer 800, a portion of the first organic planarization layer 400, and a portion of the fourth organic planarization layer 700 are formed within the cutting area NA3, the area of ​​the substrate 110 outside the display area AA covered by the fifth organic planarization layer 800, the first organic planarization layer 400, and the fourth organic planarization layer 700 can be increased. This can reduce the topographic difference between the display area AA and the peripheral area NA of the display panel 10, and increase the difficulty of material flow from the fifth organic planarization layer 800, the first organic planarization layer 400, and the fourth organic planarization layer 700 located in the edge display area AA2 to the peripheral area NA.

[0062] In this embodiment, the thickness of the fourth organic planarization layer 700 is greater than the thickness of the first organic planarization layer 400.

[0063] In this embodiment, the thickness of a portion of the fourth organic planarization layer 700 located within the edge display area AA2 is less than the thickness of a portion of the fourth organic planarization layer 700 located within the middle display area AA1, and the thickness of a portion of the fifth organic planarization layer 800 located within the edge display area AA2 is less than the thickness of a portion of the fifth organic planarization layer 800 located within the middle display area AA1.

[0064] In this embodiment, a portion of the fourth organic planarization layer 700 located within the edge display area AA2, on a surface away from the substrate 110, is lower than a portion of the fourth organic planarization layer 700 located within the display area AA, on a surface away from the substrate 110. Similarly, a portion of the fifth organic planarization layer 800 located within the edge display area AA2, on a surface away from the substrate 110, is lower than a portion of the fifth organic planarization layer 800 located within the display area AA, on a surface away from the substrate 110.

[0065] It is understood that, in this embodiment, a surface of a portion of the fourth organic planarization layer 700 located within the edge display area AA2 that is away from the substrate 110 forms a fourth angle with an extension surface of a portion of the fourth organic planarization layer 700 located within the display area AA that is away from the substrate 110, and a fifth angle is formed with an extension surface of a portion of the fifth organic planarization layer 800 located within the edge display area AA2 that is away from the substrate 110.

[0066] The fifth embodiment of this application provides a display panel motherboard 20, see reference. Figure 2 , Figure 3 , Figure 4 as well as Figure 5 The display panel motherboard 20 includes the display panel 10, and the display panel motherboard 20 includes a cutting area NA3, which surrounds the crack-resistant area NA1 of the display panel 10. A portion of the first organic planarization layer 400 is located within the cutting area NA3.

[0067] Because the display panel has an added light-shielding layer and an organic layer, the terrain differences between the peripheral area and the display area of ​​the display panel increase. During the manufacturing process of the display panel, the material of the organic layer located in the display area of ​​the display panel will flow to the peripheral area of ​​the display panel, resulting in uneven film thickness in different areas of the display area of ​​the display panel, causing uneven color and brightness of the displayed image. By setting the display panel motherboard 20 to include a cutting area NA3, the cutting area NA3 surrounds the anti-crack area NA1 of the display panel 10, a first organic planarization layer 400 is located between the first light-shielding layer 200 and the first light-shielding layer 200, a portion of the first organic planarization layer 400 covers the edge of the driving array layer 120, an edge of the first organic planarization layer 400 extends beyond the anti-crack area NA1 away from the display area AA, and a portion of the first organic planarization layer 400 is located within the cutting area NA3; that is, a portion of the first organic planarization layer 400 extends into the cutting area NA3, reducing the topographic difference between the display area AA and the peripheral area NA of the display panel 10, increasing the difficulty of material flow from the first organic planarization layer 400 located in the edge display area AA2 to the peripheral area NA, reducing the material flow from the edge display area AA2 to the peripheral area NA during the manufacturing of the display panel 10, reducing the difference in film thickness between the edge display area AA2 and the middle display area AA, thereby improving the problem of uneven color brightness in the display image of the display panel 10.

[0068] It should be understood that, unless otherwise specified or there is a logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be referenced by each other, and the technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0069] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display panel, characterized in that, The display panel includes a display area and a crack-resistant area. The display area includes a central display area and an edge display area surrounding the central display area. The crack-resistant area is located on the side of the edge display area away from the display area. The display panel also includes: Substrate; A driving array layer, wherein the driving array layer is disposed on the surface of the substrate; A first light-shielding layer is disposed on the side of the driving array layer away from the substrate; A second light-shielding layer is disposed on the side of the first light-shielding layer away from the substrate; A first organic planarization layer is located between the first light-shielding layer and the first light-shielding layer; Wherein, a portion of the first organic planarization layer covers the edge of the driving array layer, and a portion of the first organic planarization layer extends beyond an edge of the anti-crack zone away from the display area.

2. The display panel according to claim 1, characterized in that, The display panel further includes a second organic planarization layer, which is disposed on a surface of the first organic planarization layer away from the substrate, and a portion of the second organic planarization layer extends beyond an edge of the anti-crack area away from the display area; The second light-shielding layer is disposed on a surface of the second organic planarization layer that is away from the substrate.

3. The display panel according to claim 2, characterized in that, The edge of at least one of the first organic planarization layer and the second organic planarization layer is flush with the edge of the substrate.

4. The display panel according to claim 1, characterized in that, The display panel further includes a third organic planarization layer, which is disposed on a surface of the first light-shielding layer near the substrate, and a portion of the third organic planarization layer extends beyond an edge of the anti-crack area away from the display area; The first light-shielding layer is disposed on a surface of the third organic planarization layer away from the substrate.

5. The display panel according to claim 4, characterized in that, The edge of at least one of the first organic planarization layer and the third organic planarization layer is flush with the edge of the substrate.

6. The display panel according to claim 1, characterized in that, The display panel also includes: A fourth organic planarization layer is disposed on a surface of the first organic planarization layer away from the substrate, wherein the second light-shielding layer is disposed on a surface of the fourth organic planarization layer away from the substrate; The fifth organic planarization layer is disposed on a surface of the first light-shielding layer near the substrate; Wherein, a portion of the fourth organic planarization layer extends beyond one edge of the anti-crack area away from the display area, and a portion of the fifth organic planarization layer extends beyond one edge of the anti-crack area away from the display area.

7. The display panel according to claim 6, characterized in that, The edge of at least one of the first organic planarization layer, the fourth organic planarization layer, and the fifth organic planarization layer is flush with the edge of the substrate.

8. The display panel according to claim 6, characterized in that, The thickness of the fourth organic planarization layer is greater than the thickness of the first organic planarization layer.

9. The display panel according to any one of claims 1 to 8, characterized in that, The thickness of the first organic planarization layer located in the edge display area is less than the thickness of the first organic planarization layer located in the middle display area.

10. A display panel motherboard, characterized in that, The display panel includes any one of claims 1 to 9, wherein the display panel motherboard includes a cutting area surrounding a crack-resistant area of ​​the display panel, and a portion of the first organic planarization layer is located within the cutting area.

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