OLED display panel, method for manufacturing the same, and OLED display device

Abstract

This disclosure provides an OLED display panel and its manufacturing method, and an OLED display device, in which a non-planar surface is provided on the side of the first encapsulating layer away from the organic light-emitting functional layer in the non-display area. The non-planar surface of the first encapsulating layer can hinder the flow of the second encapsulating layer to a certain extent, reducing its fluidity, reducing the slope distance of the edge of the second encapsulating layer, and increasing the edge stress and inclination angle, thereby realizing a narrow frame design of the product and improving the uniformity of the edge thickness of the second encapsulating layer, avoiding unevenness in the non-display area, and ensuring the sealing effect.

Description

Technical Field

[0001] This application claims the priority of Chinese Patent Application No. 201711240850.9, filed with the China National Intellectual Property Administration on November 30, 2017, and incorporates herein by reference the content disclosed in the application.

[0002] This disclosure relates to the field of display technologies, and more particularly to an OLED display panel, a method for manufacturing the same, and an OLED display device.

Background Art

[0003] OLED (Organic Light Emitting-Diode) devices have already become next-generation display technologies with great competitiveness and development potential due to a series of advantages such as their all-solid structure, high brightness, full viewing angle, fast response speed, wide operating temperature range, and the ability to achieve flexible displays. The organic light-emitting materials and cathode materials used in OLED devices are particularly sensitive to water and oxygen. If the moisture or oxygen content is too high, it will affect the service life of OLED devices. In order to effectively block the influence of water and oxygen on OLED devices, it is necessary to seal them. TFE (Film Encapsulation Technology) has excellent water and oxygen barrier effects and can support flexible encapsulation, and has become the mainstream encapsulation technology for flexible OLED display panels.

Summary of the Invention

Means for Solving the Problems

[0004] This disclosure provides an OLED display panel including a substrate, and a planarization layer, an organic light-emitting functional layer, a first encapsulation layer which is an inorganic layer, and a second encapsulation layer which is an organic layer, sequentially formed on the substrate. In the non-display area of the OLED display panel, the first encapsulation layer has a non-planar surface on the side away from the organic light-emitting functional layer, and the second encapsulation layer covers the first encapsulation layer within the display area of the OLED display panel and covers a part of the non-planar surface adjacent to the display area.

[0005] Alternatively, on the side of the planarization layer away from the substrate, there may be a concavo-convex structure in the non-display area of the OLED display panel, and the concavo-convex structure may correspond to the non-planar surface.

[0006] Furthermore, the OLED display panel further includes a first barrier that is on the side of the non-planar surface away from the display area and is between the organic light-emitting functional layer and the first encapsulation layer.

[0007] Furthermore, the OLED display panel further includes a second barrier that is between the organic light-emitting functional layer and the first encapsulation layer and is on the side of the first barrier away from the display area, and the height of the second barrier is greater than the height of the first barrier.

[0008] Furthermore, the OLED display panel further includes a third encapsulation layer that covers the second encapsulation layer and the first encapsulation layer not covered by the second encapsulation layer.

[0009] Alternatively, the concavo-convex structure may include a plurality of protrusions, and recesses may be formed between adjacent protrusions.

[0010] Alternatively, the shapes of the protrusions may be the same.

[0011] Alternatively, the protrusions may be connected to each other.

[0012] Alternatively, the protrusions may be zigzag-shaped.

[0013] Alternatively, the protrusions may be zigzag-shaped like an isosceles triangle or a right triangle.

[0014] Alternatively, the protrusions may be provided at intervals from each other.

[0015] Alternatively, the protrusions may be rectangular or trapezoidal.

[0016] The present disclosure further provides an OLED display device including the OLED display panel.

[0017] The present disclosure further provides an OLED display panel manufacturing method for manufacturing the OLED display panel.

[0018] Alternatively, the method may include forming a planarization layer on a substrate, forming, by a patterning process, a pattern of a concavo-convex structure in a non-display area of the OLED display panel on a side of the planarization layer away from the substrate, sequentially forming an organic light-emitting functional layer, a first encapsulation layer which is an inorganic layer, and a second encapsulation layer which is an organic layer on the substrate on which the planarization layer is formed, wherein a side of the first encapsulation layer away from the organic light-emitting functional layer and a position corresponding to the concavo-convex structure are non-planar surfaces, and the second encapsulation layer covers the first encapsulation layer in a display area and covers a part of the non-planar surface adjacent to the display area.

[0019] Furthermore, after forming the organic light-emitting functional layer and before forming the first encapsulation layer, the method may further include forming, by a patterning process, a first barrier and a second barrier in the non-display area, wherein the first barrier and the second barrier are on a side of the non-planar surface away from the display area, the first barrier is closer to the display area than the second barrier, and a height of the second barrier is greater than a height of the first barrier.

[0020] Furthermore, after forming the second encapsulation layer, the method may further include forming a third encapsulation layer on the substrate on which the first encapsulation layer and the second encapsulation layer are formed, the third encapsulation layer covering the second encapsulation layer and the first encapsulation layer not covered by the second encapsulation layer.

Brief Description of the Drawings

[0021]

Figure 1a

Figure 1b

Figure 2

Figure 3a

Figure 3b

Figure 3c

Figure 3d

Figure 4

Embodiments for Carrying Out the Invention

[0022] Hereinafter, in combination with the drawings in the present disclosure, the technical solutions in the present disclosure will be clearly and completely described. It is obvious that the described embodiments are only a part, not all, of the embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the claims of the present disclosure.

[0023] In the encapsulation process of an OLED display panel, it is difficult to control the fluidity of the organic second encapsulation layer, the ramp distance at the edge is large, and the thickness uniformity is poor. To at least partially solve these problems, the present disclosure provides an OLED display panel, a manufacturing method thereof, and an OLED display device. As shown in combination with FIG. 2, the present disclosure provides an OLED display panel including a substrate 1, a back plate (BP) 2, a planarization layer (PVD) 3, an organic light-emitting functional layer 4, a first encapsulation layer 51, and a second encapsulation layer 52 that are sequentially formed on the substrate 1. The organic light-emitting functional layer 4 may include an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, and a cathode. The material of the first encapsulation layer 51 is an inorganic material and may be manufactured and formed by a CVD (Chemical Vapor Deposition) method. The material of the second encapsulation layer 52 is an organic material and may be manufactured and formed by an inkjet printing method. In the non-display area of the OLED display panel, the first encapsulation layer 51 has a non-flat surface on the side away from the organic light-emitting functional layer 4. The second encapsulation layer 52 covers the first encapsulation layer within the display area of the OLED display panel and covers a part of the non-flat surface adjacent to the display area. As shown in FIG. 2, the left side of the dotted line is the non-display area of the OLED display panel, and the right side of the dotted line is the display area (i.e., the AA area) of the OLED display panel. In the encapsulation operation of the OLED device, the second encapsulation layer 52 covers the entire display area and flows from the display area to the non-display area. It is blocked by the non-flat surface of the first encapsulation layer 51 in the non-display area. Here, the non-flat surface refers to a surface having an obvious convex and concave structure that can prevent the liquid organic encapsulation layer from passing through the entire non-flat surface. Before the organic encapsulation layer solidifies, it is in a liquid state, has high fluidity, and it is difficult to precisely control its diffusion, making it easy to flow out. As a result, the sealing effect of the OLED display panel deteriorates. For the problems that can occur in the conventional TFE process, in the OLED display panel of the present disclosure, when the organic second encapsulation layer 52 is formed, the non-flat surface of the first encapsulation layer 51 can prevent the flow of the second encapsulation layer 52 to a certain extent and reduce its fluidity. Therefore, the encapsulation operation of the OLED display panel of the present disclosure can be performed more easily.

[0024] Alternatively, on the side of the planarization layer 3 away from the substrate 1, there may be a concavo-convex structure 31 located in the non-display area of the OLED display panel, and this concavo-convex structure 31 may correspond to the non-planar surface. Generally speaking, the planarization layer 3 has a greater thickness than the organic light-emitting functional layer 4 and the first encapsulation layer 51. Therefore, providing a concavo-convex structure on the planarization layer 3 is advantageous for obtaining a non-planar surface with a greater degree of non-planarity. Specifically, the organic light-emitting functional layer 4 is provided on the planarization layer 3, the first encapsulation layer 51 is provided on the organic light-emitting functional layer, the side of the organic light-emitting functional layer 4 away from the planarization layer 3 and corresponding to the concavo-convex structure 31 is a non-planar surface, and also, the side of the first encapsulation layer 51 away from the organic light-emitting functional layer 4 and corresponding to the concavo-convex structure 31 is a non-planar surface. The second encapsulation layer 52 covers the entire display area and also flows from the display area to the non-display area, and is blocked by the non-planar surface of the first encapsulation layer 51 formed by the concavo-convex structure 31 in the non-display area. As shown in FIG. 2, the inclination angle of the edge of the second encapsulation layer 52 is α2, and the inclination angle α2 of the edge of the second encapsulation layer 52 in the present disclosure is greater than the inclination angle α1 of the edge of the second encapsulation layer 52 in the related structure (as shown in FIG. 1b). Correspondingly, the climbing distance L2 of the second encapsulation layer 52 is smaller than the climbing distance L1 of the second encapsulation layer 52 in the related structure shown in FIG. 1b. By providing the concavo-convex structure 31 on the side of the planarization layer 3 away from the substrate 1 within the non-display area, after forming the organic light-emitting functional layer 4 and the inorganic first encapsulation layer 51 on the planarization layer 3, the positions corresponding to the concavo-convex structure 31 of the organic light-emitting functional layer 4 and the first encapsulation layer 51 are non-planar surfaces, that is, concavo-convex structures with the same shape are also formed at the positions corresponding to the concavo-convex structure 31 on the organic light-emitting functional layer 4 and the first encapsulation layer 51. When forming the organic second encapsulation layer 52, the non-planar surface of the first encapsulation layer 51 can prevent the flow of the second encapsulation layer 52 to a certain extent, reduce its fluidity, reduce the climbing distance of the edge of the second encapsulation layer 52, and increase the edge stress and inclination angle. Thereby, the narrow bezel design of the product can be realized, the uniformity of the thickness of the edge of the second encapsulation layer 52 can be improved, the unevenness defect in the non-display area can be avoided, and the encapsulation effect can be guaranteed.

[0025] When the planarization layer 3 is installed flat overall, it will be understood that the side of the organic light-emitting functional layer 4 away from the planarization layer 3 in the non-display area portion may be provided to have a concavo-convex structure (not shown). Alternatively, when the planarization layer 3 in the non-display area portion has a concavo-convex structure, the organic light-emitting functional layer 4 in the portion corresponding to the planarization layer 3 in the non-display area portion may be provided to have a concavo-convex structure (not shown) on the side away from the planarization layer. The shaping of the concavo-convex structure of the organic light-emitting functional layer 4 may be different from the shaping of the concavo-convex structure used in the planarization layer 3, as long as the two can be bonded together. All of the above methods can realize such a non-flat surface, prevent the flow of the second encapsulation layer 52 to a certain extent, and reduce its fluidity.

[0026] Furthermore, as shown in FIG. 2, the OLED display panel further includes a first barrier 61 that is on the side away from the display area of the non-flat surface and between the organic light-emitting functional layer 4 and the first encapsulation layer 51. That is, the non-flat surface is located on the side adjacent to the display area of the first barrier 61. Since the second encapsulation layer 52 covers only a part of the non-flat surface adjacent to the display area, the second encapsulation layer 52 does not flow out from the first barrier 61, thereby ensuring the sealing effect of the OLED display panel.

[0027] Furthermore, in order to further ensure the sealing effect of the OLED display panel, as shown in FIG. 2, the OLED display panel may further include a second barrier 62 that is between the organic light-emitting functional layer 4 and the first encapsulation layer 51 and on the side away from the display area of the first barrier 61. That is, the second barrier 62 is closer to the edge of the OLED display panel than the first barrier 61. The height of the second barrier 62 is greater than the height of the first barrier 61. In this way, even if the second encapsulation layer 52 flows out from the first barrier 61, it will be blocked by the second barrier 62, and the sealing effect is ensured.

[0028] Furthermore, as shown in FIG. 2, the OLED display panel is formed on the first encapsulation layer 51 and the second encapsulation layer 52, and further includes a third encapsulation layer 53 that covers the second encapsulation layer 52 and the first encapsulation layer 51 not covered by the second encapsulation layer 52. That is, in a part of the non-flat surface area adjacent to the display area and within the display area, the third encapsulation layer 53 is directly provided on the second encapsulation layer 52. However, in other non-display areas other than this part of the non-flat surface, since there is no second encapsulation layer 52, the third encapsulation layer 53 is directly provided on the first encapsulation layer 51. In this way, the third encapsulation layer 53, the second encapsulation layer 52, and the first encapsulation layer 51 together realize the encapsulation of the OLED display panel.

[0029] Hereinafter, with reference to FIGS. 3a to 3d, the specific structure of the concavo-convex structure 31 will be described in detail.

[0030] As shown in FIGS. 3a to 3d, the concavo-convex structure 31 includes a plurality of protrusions 311, and recesses 312 are formed between adjacent protrusions 311. The concavo-convex structure 31 may be formed by a lithography process with the help of a mask plate.

[0031] Alternatively, the shapes of the respective protrusions 311 may be the same.

[0032] In the embodiment of the present disclosure, the shapes of the respective protrusions 311 and the respective recesses 312 are the same. The shapes of the respective protrusions 311 and the respective recesses 312 may be different or the same. As long as the surface of the planarization layer 3 away from the substrate 1 is a non-flat surface (concavo-convex structure), and after the manufacturing of the organic light-emitting layer 4 and the first encapsulation layer 51 is completed, it can be ensured that the surface of the first encapsulation layer 51 away from the substrate 1 is still a non-flat surface.

[0033] Referring to FIGS. 3a and 3b, each protrusion 311 may be connected to each other. Alternatively, each protrusion 311 and each recess 312 may be zigzag. As shown in FIG. 3a, each protrusion 311 and each recess 312 may be in the form of an isosceles triangle zigzag. As shown in FIG. 3b, each protrusion 311 and each recess 312 may be in the form of a right triangle zigzag.

[0034] Referring to FIGS. 3c and 3d, each protrusion 311 may be provided at intervals from each other. As shown in FIG. 3c, each protrusion 311 and each recess 312 may be rectangular. As shown in FIG. 3d, each protrusion 311 and each recess 312 may be trapezoidal.

[0035] It should be understood by those skilled in the art that the specific shapes of the protrusions 311 and recesses 312 in the present disclosed embodiments are merely illustrative, and the shapes of the protrusions 311 and recesses 312 are not limited to the above shapes.

[0036] When the second encapsulation layer 52 flows out from the first barrier 61 and the second barrier 62, it is difficult for the third encapsulation layer 53 to effectively wrap the second encapsulation layer 52, and oxygen water in the external environment easily enters the inside of the display device, corroding the organic light-emitting layer 4 and causing display unevenness.

[0037] In the present disclosure, by forming the convex-concave structure 31 on the upper surface of the planarization layer 3 within the non-display area, a corresponding convex-concave structure (i.e., non-planar surface) is formed on both the surface of the organic light-emitting layer 4 and the inorganic first encapsulation layer 51 located on the planarization layer 3. After printing the material of the organic second encapsulation layer 52 on this non-planar surface, this non-planar surface can slow down the flow rate of the material of the second encapsulation layer 52 and prevent it from flowing over the barrier. Thereby, the inclination angle of the edge of the second encapsulation layer 52 can be increased to maintain the thickness uniformity of the second encapsulation layer 52. In this way, it is possible to improve the problem of display unevenness caused by leakage of the second encapsulation layer 52, which is likely to occur in conventional TFE encapsulation, and the unevenness defect problem caused by poor uniformity of the non-display area film layer.

[0038] The present disclosure further provides an OLED display device including the above OLED display panel.

[0039] The OLED display device may be all products or components with a liquid crystal display function, such as electronic paper, mobile phones, tablet computers, televisions, digital photo frames, etc.

[0040] In the OLED display device provided by the present disclosure, in the non-display area, by providing a concavo-convex structure 31 on the side of the planarization layer 3 away from the substrate 1, after forming the organic light-emitting functional layer 4 and the inorganic first encapsulation layer 51 on the planarization layer 3, the positions corresponding to the concavo-convex structure 31 of the organic light-emitting functional layer 4 and the first encapsulation layer 51 are non-planar surfaces, that is, concavo-convex structures with the same shape are also formed at the positions corresponding to the concavo-convex structure 31 on the organic light-emitting functional layer 4 and the first encapsulation layer 51. When the organic second encapsulation layer 52 is formed, the non-planar surface of the first encapsulation layer 51 can prevent the flow of the second encapsulation layer 52 to a certain extent, reduce its fluidity, reduce the uphill distance of the edge of the second encapsulation layer 52, increase the edge stress and the inclination angle, thereby realizing the narrow bezel design of the product, improving the uniformity of the thickness of the edge of the second encapsulation layer 52, avoiding unevenness defects in the non-display area, and ensuring the encapsulation effect.

[0041] The present disclosure further provides a method for manufacturing an OLED display panel for manufacturing the above OLED display panel. Hereinafter, in combination with the figures of FIG. 2, FIGS. 3a to 3d and FIG. 4, embodiments of this method for manufacturing an OLED display panel will be described. The method may include the following steps.

[0042] Step 101: Form a planarization layer 3 on the substrate 1, and form a pattern of the concavo-convex structure 31 on the side of the planarization layer 3 away from the substrate 1 by a patterning process.

[0043] Specifically, the pattern of the concavo-convex structure 31 is located in the non-display area of the OLED display panel, and its specific structure may be the structure shown in FIGS. 3a to 3d, and the description is omitted here.

[0044] Step 102: On the substrate 1 on which the planarization layer 3 is formed, the organic light-emitting functional layer 4, the first encapsulation layer 51, and the second encapsulation layer 52 are sequentially formed.

[0045] Specifically, the first encapsulation layer 51 is an inorganic layer, and the position on the side of the first encapsulation layer 51 away from the organic light-emitting functional layer 4 and corresponding to the uneven structure 31 is a non-planar surface. The second encapsulation layer 52 is an organic layer, covering the first encapsulation layer 51 within the display area and covering a part of the non-planar surface adjacent to the display area.

[0046] After forming the organic light-emitting functional layer 4 and before forming the first encapsulation layer 51, the method may further include:

[0047] In the non-display area, the first barrier 61 and the second barrier 62 are formed by a patterning process. The first barrier 61 and the second barrier 62 are on the side away from the display area of the non-planar surface and are provided between the organic light-emitting functional layer 4 and the first encapsulation layer 51. The first barrier 61 is closer to the display area than the second barrier 62, and the height of the second barrier 62 is greater than the height of the first barrier 61.

[0048] As can be seen from Steps 101 to 102, the manufacturing method of the OLED display panel provided by this embodiment is to provide a concavo-convex structure 31 on the side of the planarization layer 3 away from the substrate 1 in the non-display area. After forming the organic light-emitting functional layer 4 and the inorganic first encapsulation layer 51 on the planarization layer 3, the positions corresponding to the concavo-convex structure 31 of the organic light-emitting functional layer 4 and the first encapsulation layer 51 are non-planar surfaces, that is, the organic light-emitting functional layer 4 and the positions corresponding to the concavo-convex structure 31 on the first encapsulation layer 51 also form concavo-convex structures with the same shape. When forming the organic second encapsulation layer 52, the non-planar surface of the first encapsulation layer 51 hinders the flow of the second encapsulation layer 52 to a certain extent, reduces its fluidity, reduces the uphill distance of the edge of the second encapsulation layer 52, and can increase the edge stress and inclination angle. Thereby, the narrow bezel design of the product can be realized, the uniformity of the thickness of the edge of the second encapsulation layer 52 can be improved, the unevenness defect in the non-display area can be avoided, and the encapsulation effect can be guaranteed. The manufacturing method of this embodiment can improve the conventional mask plate, does not increase the patterning process, and the manufacturing process remains unchanged, and can be easily realized.

[0049] Furthermore, as shown in FIG. 4, after forming the second encapsulation layer 52 (i.e., Step 102), the OLED display panel manufacturing method further includes the following steps.

[0050] Step 103: Form a third encapsulation layer 53 on the substrate 1 on which the first encapsulation layer 51 and the second encapsulation layer 52 are formed.

[0051] Specifically, the third encapsulation layer 53 covers the second encapsulation layer 52 and the first encapsulation layer 51 not covered by the second encapsulation layer 52.

[0052] It should be understood that when the planarization layer 3 is disposed flat as a whole, the side of the organic light-emitting functional layer 4 away from the planarization layer 3 in the non-display area portion may be provided with a concavo-convex structure. Alternatively, when the planarization layer 3 in the non-display area portion has a concavo-convex structure, the organic light-emitting functional layer 4 corresponding to the planarization layer 3 in the non-display area portion may be provided with a concavo-convex structure on the side away from the planarization layer. The shaping of the concavo-convex structure of the organic light-emitting functional layer 4 may be different from the shaping of the concavo-convex structure used in the planarization layer 3, as long as the two can be bonded together. Approximating the concavo-convex structure formed on the planarization layer 3, a concavo-convex structure may be formed on the organic light-emitting functional layer 4 by a patterning process. Such a non-flat surface can also be realized by the above method, which can prevent the flow of the second encapsulation layer 52 to a certain extent and reduce its fluidity.

[0053] It should be understood that the above embodiments are merely exemplary embodiments adopted to explain the principle of the present disclosure, and the present disclosure is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and such modifications and improvements are also regarded as within the scope of the claims of the present disclosure.

Explanation of Reference Numerals

[0054] 1 Substrate 2 Backplate 3 Planarization layer 4 Organic light-emitting functional layer 31 Concavo-convex structure 51 First encapsulation layer 52 Second encapsulation layer 53 Third encapsulation layer 61 First barrier 62 Second barrier 311 Protrusion 312 Recess

Claims

1. An OLED display panel comprising a substrate, and a planarization layer, an organic light-emitting functional layer, a first encapsulation layer which is an inorganic layer, and a second encapsulation layer which is an organic layer, sequentially formed on the substrate, in a non-display area of the OLED display panel, having a non-planar surface on a side of the first encapsulation layer away from the organic light-emitting functional layer, the second encapsulation layer covering the first encapsulation layer within a display area of the OLED display panel and covering a part of the non-planar surface adjacent to the display area, the OLED display panel further comprising a third encapsulation layer, the third encapsulation layer being in direct contact with the second encapsulation layer and a portion of the first encapsulation layer not covered by the second encapsulation layer, the portion of the first encapsulation layer not covered by the second encapsulation layer corresponding to the remaining portion of the non-planar surface not covered by the second encapsulation layer, the OLED display panel further comprising a first barrier on a side of the non-planar surface away from the display area and away from the second encapsulation layer, the remaining portion of the non-planar surface not covered by the second encapsulation layer being between the first barrier and the second encapsulation layer, having a concavo-convex structure in a non-display area of the OLED display panel on a side of the planarization layer away from the substrate, the concavo-convex structure corresponding to the non-planar surface, the concavo-convex structure including a plurality of protrusions, a recess being formed between adjacent protrusions, and portions of the first encapsulation layer and the organic light-emitting functional layer corresponding to the concavo-convex structure forming a concavo-convex shape the same as the shape of the concavo-convex structure, an OLED display panel.

2. The OLED display panel according to Claim 1, wherein the first barrier is between the organic light-emitting functional layer and the first encapsulation layer.

3. Further comprising a second barrier between the organic light-emitting functional layer and the first encapsulation layer and on a side of the first barrier away from the display area, the height of the second barrier being greater than the height of the first barrier, the OLED display panel according to Claim 2.

4. The OLED display panel according to Claim 1, wherein the shapes of the respective protrusions are the same.

5. The OLED display panel according to Claim 1, wherein the respective protrusions are connected to each other.

6. The OLED display panel according to Claim 5, wherein the protrusions are zigzag-shaped.

7. The OLED display panel according to claim 6, wherein the protrusions are in a zigzag shape of an isosceles triangle or a right triangle.

8. The OLED display panel according to claim 1, wherein the protrusions are provided at intervals from each other.

9. The OLED display panel according to claim 8, wherein the protrusions are rectangular or trapezoidal.

10. An OLED display device including the OLED display panel according to any one of claims 1 to 9.

11. An OLED display panel manufacturing method for manufacturing the OLED display panel according to claim 1.

12. Forming a planarization layer on a substrate, and forming, by a patterning process, a pattern of a concavo-convex structure in a non-display area of the OLED display panel on a side of the planarization layer away from the substrate; Sequentially forming an organic light-emitting functional layer, a first encapsulation layer which is an inorganic layer, and a second encapsulation layer which is an organic layer on the substrate on which the planarization layer is formed, wherein a side of the first encapsulation layer away from the organic light-emitting functional layer and a position corresponding to the concavo-convex structure are non-planar surfaces, and the second encapsulation layer covers the first encapsulation layer within a display area and covers a part of the non-planar surface adjacent to the display area. The OLED display panel manufacturing method according to claim 11, including the above.

13. After forming the organic light-emitting functional layer and before forming the first encapsulation layer, In the non-display area, forming a first barrier and a second barrier by a patterning process, wherein the first barrier and the second barrier are on a side of the non-planar surface away from the display area, the first barrier is closer to the display area than the second barrier, and a height of the second barrier is greater than a height of the first barrier. The OLED display panel manufacturing method according to claim 12, further including the above.

14. After forming the second encapsulation layer, Forming a third encapsulation layer on the substrate on which the first encapsulation layer and the second encapsulation layer are formed, the third encapsulation layer covering the second encapsulation layer and the first encapsulation layer not covered by the second encapsulation layer. The OLED display panel manufacturing method according to claim 12, further including the above.

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