OLED display panels and electronic devices

Abstract

This application discloses an OLED display panel and an electronic device. The OLED display panel includes a display body and a package structure, the display body has a display area and a non-display area disposed around the display area, the package structure is disposed on one side of the display body, the package structure extends from the display area to the non-display area, and the package structure includes a first organic layer, a first inorganic layer and a second organic layer disposed in sequence, the second organic layer covers a side surface of the first organic layer.

Description

[Technical Field]

[0001] This application relates to the field of display technology, and in particular to OLED display panels and electronic devices. [Background technology]

[0002] Organic Light Emitting Diode (OLED) displays are current-type organic light-emitting devices, and have been widely used in the flexible display industry due to their advantages of simple structure, self-luminescence, fast response, ultra-lightweight and thin design, and low power consumption. The risk of OLED device failure can increase due to the intrusion of external water vapor, so after the manufacturing process of the panel in an OLED device, packaging is usually performed to reduce the risk of OLED device failure. Summary of the Invention [Problem to be solved by the invention]

[0003] The current mainstream flexible packaging technology uses thin film encapsulation (TFE), a laminated structure of inorganic and organic films, with the inorganic film covering the organic film. The inorganic film is the main water vapor barrier layer and is typically fabricated using chemical vapor deposition (CVD). The organic film, on the other hand, extends the water vapor permeation path and relieves stress in the inorganic film. It is typically applied using inkjet printing equipment after leveling and curing. Under normal circumstances, external water vapor can enter the panel interior in two ways: from the front of the panel or from the side of the panel. As product bezels become narrower, the distance between the organic film boundary and the inorganic film boundary becomes increasingly closer. This can lead to a reduction in the water barrier properties of the inorganic film at the panel edge or cracks, allowing external water vapor to directly penetrate the display area along the organic film, resulting in package failure at the panel edge. [Means for solving the problem]

[0004] The present embodiment provides an OLED display panel and an electronic device to improve the packaging effect of the edge of the OLED display panel.

[0005] An embodiment of the present invention provides an OLED display panel, including a display body and a package structure; the display body has a display area and a non-display area disposed around the display area, The package structure is disposed on one side of the display body, and extends from the display area to the non-display area. The package structure includes a first organic layer, a first inorganic layer, and a second organic layer disposed in that order, and the second organic layer covers a side surface of the first organic layer.

[0006] Optionally, in some embodiments of the present application, the package structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer being located on one side of the first organic layer closer to the display body, and the third inorganic layer being located on one side of the second organic layer away from the first inorganic layer.

[0007] Optionally, in some embodiments of the present application, the display body includes a driving substrate, a light-emitting layer, and a first electrode, the light-emitting layer is disposed on the driving substrate and located in the display area, the first electrode is coated on one side of the light-emitting layer away from the driving substrate, and extends from the display area to the non-display area; The orthogonal projection of the first organic layer onto the plane where the driving substrate is located is located within the orthogonal projection of the first electrode onto the plane where the driving substrate is located.

[0008] Optionally, in some embodiments of the present application, the OLED display panel further includes a dam, the dam being surrounded by the first organic layer and located on one side of the first electrode away from the driving substrate.

[0009] Optionally, in some embodiments herein, the second organic layer covers a side surface of the first electrode; The OLED display panel further includes a blocking wall disposed on the driving substrate and positioned on one side of the second organic layer away from the display area, and the first inorganic layer, the second inorganic layer, and the third inorganic layer all cover the blocking wall.

[0010] Optionally, in some embodiments herein, the second organic layer covers a side surface of the first electrode; The OLED display panel further includes a blocking wall, the blocking wall being disposed on the driving substrate and located on one side of the second organic layer away from the display area, the second inorganic layer being located on one side of the dam closer to the display area, the first organic layer covering a side surface of the second inorganic layer, and the first inorganic layer and the third inorganic layer both covering the blocking wall.

[0011] Optionally, in some embodiments herein, the second organic layer covers a side surface of the first electrode; The OLED display panel further includes a blocking wall, the blocking wall being disposed on the driving substrate and located on one side of the second organic layer away from the display area, the second inorganic layer being located on one side of the dam closer to the display area, the first organic layer covering a side surface of the second inorganic layer, the first inorganic layer being located on one side of the blocking wall closer to the display area, the second organic layer covering a side surface of the first inorganic layer, and the third inorganic layer covering the blocking wall.

[0012] Optionally, in some embodiments of the present application, the display area includes an effective display area and an ineffective display area, the ineffective display area is located between the effective display area and the non-display area, and the first organic layer extends from the effective display area to the non-display area.

[0013] Optionally, in some embodiments of the present application, the display body includes a driving substrate, a light-emitting layer, and a first electrode, the light-emitting layer is disposed on the driving substrate and located in the display area, the first electrode is coated on one side of the light-emitting layer away from the driving substrate, and extends from the display area to the non-display area; The first organic layer covers a side surface of the first electrode.

[0014] Optionally, in some embodiments of the present application, the OLED display panel further includes a blocking wall, the blocking wall being located on one side of the second organic layer away from the display area, and the first inorganic layer, the second inorganic layer, and the third inorganic layer all covering the blocking wall.

[0015] Optionally, in some embodiments of the present application, the OLED display panel further includes a dam, the dam being located between the blocking wall and the second organic layer, and the height of the dam being less than the height of the blocking wall.

[0016] Optionally, in some embodiments of the present application, the OLED display panel further includes a dam, the dam is located between the blocking wall and the first organic layer, the height of the dam is less than the height of the blocking wall, and the second organic layer covers the dam and extends to the region between the dam and the blocking wall.

[0017] The present embodiment further provides an OLED display panel, which includes a display body and a package structure; the display body has a display area and a non-display area disposed around the display area, the display area including an effective display area and an ineffective display area, and the ineffective display area is located between the effective display area and the non-display area; the package structure is disposed on one side of the display body, and the package structure extends from the display area to the non-display area, and the package structure includes a first organic layer, a first inorganic layer, and a second organic layer, which are disposed in this order, the first organic layer extends from the effective display area to the non-display area, and the second organic layer covers a side surface of the first organic layer; The package structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer being located on one side of the first organic layer closer to the display body, and the third inorganic layer being located on one side of the second organic layer away from the first inorganic layer.

[0018] The present embodiment further provides an electronic device, the electronic device including: a housing; and an OLED display panel installed in the housing, the OLED display panel including a display body and a package structure; the display body has a display area and a non-display area disposed around the display area, The package structure is disposed on one side of the display body, and extends from the display area to the non-display area. The package structure includes a first organic layer, a first inorganic layer, and a second organic layer disposed in that order, and the second organic layer covers a side surface of the first organic layer.

[0019] Optionally, in some embodiments of the present application, the package structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer being located on one side of the first organic layer closer to the display body, and the third inorganic layer being located on one side of the second organic layer away from the first inorganic layer.

[0020] Optionally, in some embodiments of the present application, the display body includes a driving substrate, a light-emitting layer, and a first electrode, the light-emitting layer is disposed on the driving substrate and located in the display area, the first electrode is coated on one side of the light-emitting layer away from the driving substrate, and extends from the display area to the non-display area; The orthogonal projection of the first organic layer onto the plane where the driving substrate is located is located within the orthogonal projection of the first electrode onto the plane where the driving substrate is located.

[0021] Optionally, in some embodiments of the present application, the OLED display panel further includes a dam, the dam being surrounded by the first organic layer and located on one side of the first electrode away from the driving substrate.

[0022] Optionally, in some embodiments herein, the second organic layer covers a side surface of the first electrode; The OLED display panel further includes a blocking wall disposed on the driving substrate and positioned on one side of the second organic layer away from the display area, and the first inorganic layer, the second inorganic layer, and the third inorganic layer all cover the blocking wall.

[0023] Optionally, in some embodiments herein, the second organic layer covers a side surface of the first electrode; The OLED display panel further includes a blocking wall, the blocking wall being disposed on the driving substrate and located on one side of the second organic layer away from the display area, the second inorganic layer being located on one side of the dam closer to the display area, the first organic layer covering a side surface of the second inorganic layer, and the first inorganic layer and the third inorganic layer both covering the blocking wall.

[0024] Optionally, in some embodiments herein, the second organic layer covers a side surface of the first electrode; The OLED display panel further includes a blocking wall, the blocking wall being disposed on the driving substrate and located on one side of the second organic layer away from the display area, the second inorganic layer being located on one side of the dam closer to the display area, the first organic layer covering a side surface of the second inorganic layer, the first inorganic layer being located on one side of the blocking wall closer to the display area, the second organic layer covering a side surface of the first inorganic layer, and the third inorganic layer covering the blocking wall. [Effects of the Invention]

[0025] Compared with OLED display panels in the prior art, the OLED display panel provided by the present application has a first organic layer and a second organic layer in a packaging structure, with the second organic layer covering the side surface of the first organic layer. When external water vapor penetrates into the packaging structure from the panel edge, even if the water barrier property of the inorganic film layer at the panel edge is reduced or cracks occur, the external water vapor will first enter the second organic layer and then the first organic layer. By providing two organic layers, the penetration path of water vapor can be extended and the time it takes for water vapor to penetrate into the display area can be delayed, thereby improving the packaging effect of the OLED display panel edge.

[0026] In order to more clearly explain the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. The drawings in the following description are only some embodiments of the present application, and those skilled in the art can further derive other drawings based on these drawings without requiring any creative work. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a structural schematic diagram of an OLED display panel provided in accordance with a first embodiment of the present application; [Figure 2] FIG. 2 is a structural schematic diagram of an OLED display panel provided in accordance with a second embodiment of the present invention. [Figure 3] FIG. 2 is a structural schematic diagram of an OLED display panel provided in accordance with a third embodiment of the present invention. [Figure 4] FIG. 10 is a structural schematic diagram of an OLED display panel provided in accordance with a fourth embodiment of the present invention. [Figure 5] FIG. 10 is a structural schematic diagram of an OLED display panel provided in accordance with a fifth embodiment of the present invention. [Figure 6] FIG. 10 is a structural schematic diagram of an OLED display panel provided in accordance with a sixth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. It is apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without requiring creative work fall within the scope of protection of the present application. It should be understood that the detailed description of the present application is only used to explain and interpret the present application, and is not used to limit the present application. In this application, unless otherwise specified, the used directions, such as "up" and "down," generally refer to the up and down of the device in its actual use or operation state, specifically the drawing direction in the drawings, while "inside" and "outside" refer to the contour of the device.

[0029] The present invention provides an OLED display panel and an electronic device, which will be described in detail below. However, the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0030] The present application provides an OLED display panel including a display body and a packaging structure. The display body has a display area and a non-display area surrounding the display area. The packaging structure is disposed on one side of the display body. The packaging structure extends from the display area to the non-display area. The packaging structure includes a first organic layer, a first inorganic layer, and a second organic layer, which are disposed in this order. The second organic layer covers a side surface of the first organic layer.

[0031] Therefore, the OLED display panel provided by the present application has a first organic layer and a second organic layer disposed in a packaging structure, with the second organic layer covering the side surface of the first organic layer, and when external water vapor penetrates into the packaging structure from the panel edge and the water barrier property of the inorganic film layer at the panel edge is reduced or cracks occur, the external water vapor first enters the second organic layer and then the first organic layer. By providing two organic layers, the water vapor penetration path can be extended and the time for water vapor to penetrate into the display area can be delayed, thereby improving the packaging effect of the OLED display panel edge.

[0032] Hereinafter, the OLED display panel provided by the present application will be described in detail through specific examples.

[0033] As shown in FIG. 1 , a first embodiment of the present invention provides an OLED display panel 100. The OLED display panel 100 includes a display body 10 and a packaging structure 20. The display body 10 has a display area 101 and a non-display area 102 surrounding the display area 101. The packaging structure 20 is disposed on one side of the display body 10. The packaging structure 20 extends from the display area 101 to the non-display area 102. The packaging structure 20 includes a first organic layer 21, a first inorganic layer 22, and a second organic layer 23, which are disposed in this order. The second organic layer 23 covers a side surface of the first organic layer 21.

[0034] Specifically, the display body 10 includes a driving substrate 11, a light-emitting layer 12, a first electrode 13, and an optical coating layer 14.

[0035] Here, the driving substrate 11 may be a thin film transistor substrate. The thin film transistor substrate includes a base and a metal oxide thin film transistor (not shown) disposed on the base. The related technologies are all conventional technologies, and detailed descriptions thereof are omitted here.

[0036] The light-emitting layer 12 is disposed on the driving substrate 11 and is located in the display area 101. The first electrode 13 is coated on one side of the light-emitting layer 12 away from the driving substrate 11. The first electrode 13 extends from the display area 101 to the non-display area 102. Here, the first electrode 13 may be an anode or a cathode. In this embodiment, the first electrode 13 is a cathode, and in this case, an anode is disposed on one side of the driving substrate 11 closer to the light-emitting layer 12 (not shown). The related technologies are all conventional technologies, and detailed descriptions thereof will be omitted here.

[0037] The optical coating layer 14 is coated on one side of the first electrode 13 away from the light emitting layer 12. Here, the material of the optical coating layer 14 may be an organic material with a high refractive index.

[0038] However, in each drawing of the present application, only the structure of the light-emitting layer 12 is shown, which is used to easily describe each embodiment. The OLED display panel 100 of the present application further includes a plurality of light-emitting devices (not shown) arranged in an array, each of which is composed of an anode, a light-emitting layer 12, and a cathode. The related technologies are all conventional technologies, and detailed descriptions thereof will be omitted here.

[0039] In this embodiment, the display area 101 includes an effective display area 1011 and an ineffective display area 1012. The ineffective display area 1012 is located between the effective display area 1011 and the non-display area 102. Light-emitting pixels (not shown) are provided in the effective display area 1011, and virtual pixels (not shown) are provided in the ineffective display area 1012. The first electrode 13 and the first organic layer 21 both extend from the effective display area 1011 to the non-display area 102. The orthogonal projection of the first organic layer 21 on the plane where the driving substrate 11 is located is located within the orthogonal projection of the first electrode 13 on the plane where the driving substrate 11 is located. That is, the boundary of the first organic layer 21 is located above the first electrode 13.

[0040] An inactive display area 1012 is disposed between the non-display area 102 and the effective display area 1011. Therefore, in this embodiment, the boundary of the first organic layer 21 is positioned above the first electrode 13, so that even if external water vapor penetrates into the first organic layer 21, it will first enter the inactive display area 1012 and will not affect the display in the effective display area 1011, thereby ensuring the packaging effect of the effective display area 1011. In addition, the first organic layer 21 does not occupy any additional space in the non-display area 102. Therefore, the above-described arrangement saves space in the non-display area 102 and further narrows the frame, which is advantageous for realizing a narrow frame design for the OLED display panel 100.

[0041] Furthermore, the package structure 20 further includes a second inorganic layer 24 and a third inorganic layer 25. The second inorganic layer 24 is located on one side of the first organic layer 21 close to the display body 10. The third inorganic layer 25 is located on one side of the second organic layer 23 away from the first inorganic layer 22. Here, the materials of the first inorganic layer 22, the second inorganic layer 24, and the third inorganic layer 25 may all include one or more of silicon oxide, silicon nitride, and silicon oxynitride.

[0042] In the prior art, OLED display panel packaging generally has a three-layer structure consisting of an inorganic film, an organic film, and another inorganic film, with the organic film sandwiched between two inorganic films. However, as panel size increases, the possibility of foreign particles falling during the panel manufacturing process also increases, and the existing three-layer packaging structure cannot ensure the overall packaging effectiveness of the display panel, resulting in reduced manufacturing yield. Therefore, in this embodiment, a five-layer packaging structure 20 including a second inorganic layer 24, a first organic layer 21, a first inorganic layer 22, a second organic layer 23, and a third inorganic layer 25 is provided to further improve the overall packaging effectiveness of the OLED display panel 100 and reduce yield losses caused by foreign particles falling during the panel manufacturing process.

[0043] Also, in contrast to the two-layer package structure containing an organic film and an inorganic film designed in the prior art, in some embodiments, only the first inorganic layer 22 and the third inorganic layer 25 may be provided in the package structure 20, and the second inorganic layer 24 may be omitted, i.e., the first organic layer 21 may be in direct contact with the optical coating layer 14, which will not be described in detail here.

[0044] In this embodiment, the OLED display panel 100 further includes a dam 30. The dam 30 is disposed around the first organic layer 21. The dam 30 is located on one side of the first electrode 13 that is farther from the driving substrate 11. By disposing the dam 30 around the first organic layer 21, it is possible to prevent the first organic layer 21 from overflowing during deposition, which is advantageous for improving the deposition morphology of the first organic layer 21.

[0045] Specifically, the number of dams 30 may be one. In this case, the dam 30 may have a ring-shaped structure, and the first organic layer 21 is located within the storage space formed by the ring-shaped structure. Alternatively, the number of dams 30 may be multiple, and the multiple dams 30 are arranged in sequence and surrounded by the first organic layer 21. Here, the material of the dam 30 may include an organic material such as an epoxy resin or an acrylic resin.

[0046] The second organic layer 23 covers the side surface of the first electrode 13. Since the first electrode 13 is typically made of a metal material, the second organic layer 23 is disposed on the outside of the first electrode 13 in the above-described configuration, which reduces the probability of the first electrode 13 being invaded by external water vapor and further reduces the probability of the first electrode 13 being corroded by oxidation, thereby reducing the probability of device failure and thereby extending the service life of the OLED display panel 100.

[0047] In this embodiment, the OLED display panel 100 further includes a barrier 40. The barrier 40 is disposed on the driving substrate 11. The barrier 40 is located on one side of the second organic layer 23, away from the display area 101. The barrier 40 is used to prevent the organic material used in manufacturing the second organic layer 23 from spilling out. In addition, the first inorganic layer 22, the second inorganic layer 24, and the third inorganic layer 25 all cover the barrier 40, thereby improving the water and oxygen barrier performance of the panel edge.

[0048] Specifically, the blocking wall 40 includes a first layer 41 and a second layer 42. The first layer 41 is located between the second layer 42 and the drive substrate 11. Here, the first layer 41 may be manufactured using the same process as the planarization layer (not shown) of the drive substrate 11, and the second layer 42 may be manufactured using the same process as the pixel definition layer (not shown) of the drive substrate 11. The related technologies are all conventional technologies, and detailed descriptions thereof will be omitted here. However, in some embodiments, the blocking wall 40 may include only one of the first layer 41 and the second layer 42, and the present application does not specifically limit the structure of the blocking wall 40.

[0049] Therefore, in this embodiment, even if the water barrier property of one or more of the first inorganic layer 22, the second inorganic layer 24, and the third inorganic layer 25 is reduced or cracks occur, because the first organic layer 21 and the second organic layer 23 covering the side surface of the first organic layer 21 are provided on one side of the effective display area 1011 near the non-display area 102, when external water vapor penetrates from the non-display area 102, the external water vapor first enters the second organic layer 23 and then the first organic layer 21. Compared with the packaging method using a single organic layer, this embodiment increases the water vapor penetration path at the panel edge and delays the water vapor penetration time, thereby improving the packaging effect of the edges of the OLED display panel 100, extending the service life of the OLED display panel 100, and helping to improve the manufacturing yield of products.

[0050] 2, the second embodiment of the present invention provides an OLED display panel 200. The difference between the OLED display panel 200 provided by the second embodiment of the present invention and the first embodiment is that the second inorganic layer 24 is located on one side of the dam 30 close to the display area 101, and the first organic layer 21 covers the side surface of the second inorganic layer 24.

[0051] The inventors of the present application have found through experimental investigations that when metal oxide thin film transistors such as IGZO thin film transistors are used in large-size display panels, the inorganic layer is usually made of silicon oxide or silicon nitride, which has a relatively low hydrogen content, in consideration of the electrical performance of the panel. The hydrogen content is lower closer to the inorganic layer of the thin film transistor, reducing the probability of hydrogen diffusion into the thin film transistor device and thereby reducing the impact of hydrogen on the electrical performance of the thin film transistor. However, when the hydrogen content in the inorganic layer is relatively low, it can reduce the water vapor barrier effect of the inorganic layer, increasing the risk of the inorganic layer at the panel edge being damaged by water vapor penetration.

[0052] Therefore, in this embodiment, the first organic layer 21 is coated on the side surface of the second inorganic layer 24, i.e., the second inorganic layer 24 is shrunk inward, thereby preventing water vapor from penetrating along the side of the second inorganic layer 24, further reducing the risk of the second inorganic layer 24 being damaged due to water vapor penetration and improving the packaging effect of the panel edge. In addition, this arrangement reduces the space occupied by the second inorganic layer 24 in the non-display area 102, thereby reducing the total thickness of the inorganic film layers in the non-display area 102 and advantageously reducing the stress of the film layers in the non-display area 102, thereby reducing the risk of delamination between the panel edge film layers and thereby improving the bending performance of the OLED display panel 200 in the non-display area 102.

[0053] Furthermore, after the second inorganic layer 24 is shrunk inward, the portion of the first organic layer 21 located outside the second inorganic layer 24 directly contacts the optical coating layer 14. The optical coating layer 14 is an organic film layer, and has excellent bonding strength between the first organic layer 21 and the optical coating layer 14. Therefore, this embodiment can improve the bonding strength between the first organic layer 21 and the display body 10, i.e., the bonding strength between the package structure 20 and the display body 10, which is advantageous in improving the reliability of the panel.

[0054] 3, the third embodiment of the present invention provides an OLED display panel 300. The difference between the OLED display panel 300 provided by the third embodiment and the second embodiment is that the first inorganic layer 22 is located on one side of the blocking wall 40, closer to the display area 101. The boundary of the first inorganic layer 22 is located between the first electrode 13 and the blocking wall 40. The second organic layer 23 covers the side surface of the first inorganic layer 22.

[0055] In this embodiment, the second organic layer 23 is coated on the side surface of the first inorganic layer 22, i.e., the first inorganic layer 22 is shrunk inward, thereby preventing water vapor from penetrating along the side of the first inorganic layer 22, further reducing the risk of the first inorganic layer 22 being damaged due to water vapor penetration and improving the packaging effect of the panel edge. Furthermore, this arrangement reduces the space occupied by the first inorganic layer 22 in the non-display area 102, thereby further reducing the total thickness of the inorganic film layers in the non-display area 102, thereby further reducing the stress on the film layers in the non-display area 102 and reducing the risk of peeling between the panel edge film layers, which is beneficial to improving the bending performance of the OLED display panel 300 in the non-display area 102.

[0056] 4, the fourth embodiment of the present invention provides an OLED display panel 400. The difference between the OLED display panel 400 provided by the fourth embodiment of the present invention and the first embodiment is that the first organic layer 21 covers the side surface of the first electrode 13. The OLED display panel 400 does not have a dam 30.

[0057] In this embodiment, by covering the side surface of the first electrode 13 with the first organic layer 21, the first organic layer 21 and the second organic layer 23 are simultaneously positioned outside the first electrode 13, further extending the water vapor intrusion path outside the first electrode 13. This delays the time it takes for water vapor to enter the first electrode 13, further reducing the probability of external water vapor invading the first electrode 13 and the probability of device failure. In addition, in this embodiment, the installation of the dam 30 is omitted, and the blocking effect of the blocking wall 40 simultaneously prevents organic materials from overflowing during the deposition process of the first organic layer 21 and the second organic layer 23, further contributing to reducing the manufacturing cost of the OLED display panel 400.

[0058] 5, the fifth embodiment of the present invention provides an OLED display panel 500. The difference between the OLED display panel 500 provided by the fifth embodiment of the present invention and the first embodiment is that the first organic layer 21 covers the side surface of the first electrode 13. The dam 30 is located between the blocking wall 40 and the second organic layer 23. The height of the dam 30 is less than the height of the blocking wall 40.

[0059] In this embodiment, by coating the side surface of the first electrode 13 with the first organic layer 21, the first organic layer 21 and the second organic layer 23 are simultaneously positioned outside the first electrode 13, further extending the water vapor penetration path outside the first electrode 13. This delays the time it takes for water vapor to enter the first electrode 13, further reducing the probability of the first electrode 13 being penetrated by external water vapor and further reducing the probability of device failure. In addition, the dual blocking action of the dam 30 and the blocking wall 40 can significantly reduce the probability of the organic material overflowing, which is advantageous for improving the film formation morphology of the first organic layer 21 and the second organic layer 23.

[0060] 6 , a sixth embodiment of the present invention provides an OLED display panel 600. The difference between the OLED display panel 600 provided by the sixth embodiment of the present invention and the fifth embodiment is that the second organic layer 23 covers the dam 30 and extends to the region between the dam 30 and the blocking wall 40.

[0061] In this embodiment, the second organic layer 23 extends to the region between the dam 30 and the blocking wall 40, i.e., the boundary of the second organic layer 23 is located between the dam 30 and the blocking wall 40. This further increases the area occupied by the second organic layer 23 in the non-display region 102, increases the distance from the boundary of the second organic layer 23 to the display region 101, and extends the penetration path of external water vapor through the organic film layers, thereby further improving the packaging effect of the edges of the OLED display panel 600.

[0062] The present application further provides an electronic device, which may be any product or component having a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital frame, a navigator, etc. Here, the electronic device includes a housing and an OLED display panel installed in the housing, which may be the OLED display panel described in any of the above embodiments. The specific structure of the OLED display panel may refer to the description of the above embodiments, and a detailed description thereof will be omitted here.

[0063] The above is a detailed introduction of the OLED display panel and electronic device provided by the present application examples, and the present application will discuss the principles and embodiments using specific examples. The above explanation of the examples is only used to help understand the method and core idea of ​​the present application, and at the same time, those skilled in the art can make changes to both the mode for carrying out the invention and the scope of application according to the idea of ​​the present application. Therefore, the contents of this specification should not be construed as limiting the present application. [Explanation of symbols]

[0064] 10 Display unit 11 Drive board 12. Emitting layer 13 1st electrode 14 Optical coating layer 20 Package Structure 21 1st organic layer 22 1st inorganic layer 23 Second organic layer 24 Second inorganic layer 25 Third inorganic layer 30 Dam 40 Bulkhead 41 1st layer 42 2nd layer 100 OLED display panels 101 Display area 102 Hidden area 200 OLED display panel 300 OLED display panel 400 OLED display panel 500 OLED display panel 600 OLED display panel 1011 Effective display area 1012 Invalid display area

Claims

1. An OLED display panel, comprising: a display body; and a package structure; the display body has a display area and a non-display area disposed around the display area, the package structure is disposed on one side of the display body, the package structure extends from the display area to the non-display area, the package structure includes a first organic layer, a first inorganic layer, and a second organic layer disposed in that order, and at an end of the first organic layer, the first inorganic layer directly and completely covers a side surface of the first organic layer, and the second organic layer directly and completely covers a side surface of the first inorganic layer, so that the second organic layer completely covers the side surface of the first organic layer.

2. 2. The OLED display panel of claim 1, wherein the package structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer being located on one side of the first organic layer closer to the display body, and the third inorganic layer being located on one side of the second organic layer away from the first inorganic layer.

3. 3. The OLED display panel of claim 2, wherein the display body includes a driving substrate, a light-emitting layer, and a first electrode, the light-emitting layer being disposed on the driving substrate and located in the display area, the first electrode being coated on one side of the light-emitting layer away from the driving substrate and extending from the display area to the non-display area, and the orthogonal projection of the first organic layer on a plane in which the driving substrate is located is located within the orthogonal projection of the first electrode on the plane in which the driving substrate is located.

4. 4. The OLED display panel of claim 3, further comprising a dam, the dam being surrounded by the first organic layer and positioned on one side of the first electrode away from the driving substrate.

5. the second organic layer covers a side surface of the first electrode; 5. The OLED display panel of claim 4, further comprising a blocking wall, the blocking wall being disposed on the driving substrate and located on one side of the second organic layer away from the display area, and the first inorganic layer, the second inorganic layer and the third inorganic layer all covering the blocking wall.

6. the second organic layer covers a side surface of the first electrode; 5. The OLED display panel of claim 4, wherein the OLED display panel further includes a blocking wall, the blocking wall being disposed on the driving substrate and located on one side of the second organic layer away from the display area, the second inorganic layer being located on one side of the dam closer to the display area, the first organic layer covering a side surface of the second inorganic layer, and the first inorganic layer and the third inorganic layer both covering the blocking wall.

7. the second organic layer covers a side surface of the first electrode; 5. The OLED display panel of claim 4, wherein the OLED display panel further includes a blocking wall, the blocking wall being disposed on the driving substrate and located on one side of the second organic layer away from the display area, the second inorganic layer being located on one side of the dam closer to the display area, the first organic layer covering a side surface of the second inorganic layer, the first inorganic layer being located on one side of the blocking wall closer to the display area, the second organic layer covering a side surface of the first inorganic layer, and the third inorganic layer covering the blocking wall.

8. 2. The OLED display panel of claim 1, wherein the display area includes an effective display area and an ineffective display area, the ineffective display area is located between the effective display area and the non-display area, and the first organic layer extends from the effective display area to the non-display area.

9. the display body includes a driving substrate, a light-emitting layer, and a first electrode, the light-emitting layer being disposed on the driving substrate and positioned in the display area, the first electrode being coated on one side of the light-emitting layer away from the driving substrate and extending from the display area to the non-display area; 3. The OLED display panel of claim 2, wherein the first organic layer covers a side surface of the first electrode.

10. 10. The OLED display panel of claim 9, further comprising a blocking wall located on one side of the second organic layer away from the display area, and the first inorganic layer, the second inorganic layer, and the third inorganic layer all cover the blocking wall.

11. 11. The OLED display panel of claim 10, further comprising a dam, the dam being located between the blocking wall and the second organic layer, and the height of the dam being less than the height of the blocking wall.

12. 11. The OLED display panel of claim 10, wherein the OLED display panel further includes a dam located between the blocking wall and the first organic layer, the height of the dam is less than the height of the blocking wall, and the second organic layer covers the dam and extends to the region between the dam and the blocking wall.

13. An OLED display panel, comprising: a display body; and a package structure; the display body has a display area and a non-display area disposed around the display area, the display area including an effective display area and an ineffective display area, and the ineffective display area is located between the effective display area and the non-display area; the package structure is disposed on one side of the display body, and the package structure extends from the display area to the non-display area, and the package structure includes a first organic layer, a first inorganic layer, and a second organic layer which are disposed in this order, and the first organic layer extends from the effective display area to the non-display area, and at an end of the first organic layer, the first inorganic layer directly and completely covers a side surface of the first organic layer, and the second organic layer directly and completely covers a side surface of the first inorganic layer, so that the second organic layer completely covers a side surface of the first organic layer; The package structure further includes a second inorganic layer and a third inorganic layer, the second inorganic layer being located on one side of the first organic layer closer to the display body, and the third inorganic layer being located on one side of the second organic layer away from the first inorganic layer, in an OLED display panel.

14. 13. An electronic device, comprising: a housing; and an OLED display panel disposed in the housing, the OLED display panel being an OLED display panel according to any one of claims 1 to 12.

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