Display panel, display device and display mother board

Abstract

The embodiment of the invention provides a display panel, a display device and a display mother board. The display panel comprises a display area and a non-display area arranged on at least one side of the display area. The display panel further comprises a substrate, an array function layer and an isolation structure. The array function layer comprises a mark unit located in the non-display area. The isolation structure is arranged on the side, away from the substrate, of the array function layer and comprises a first isolation part located in the non-display area, and a receding opening is defined by the first isolation part; the orthographic projection of the marking unit on the substrate is located in the orthographic projection of the abdicating opening on the substrate, so that the interference of the first isolation part on the marking unit is reduced, and the processing performance of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display equipment, and in particular to a display panel, a display device and a display motherboard. Background Art

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] In the process of preparing traditional display panels, the graphicization of luminous pixels is usually achieved through a fine metal mask (FMM). FMM technology is mature and has rich experience in mass production. However, FMM technology also has problems such as limited accuracy, high development cost, and long development cycle. The fine metal mask-free technology eliminates the limitations of traditional OLED processes on display screen size, resolution, and other screen performance, and has the advantages of high performance, full-domain size, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A record the relevant content of the fine metal mask-free technology for reference.

[0004] However, the process performance of current display products needs to be improved. Summary of the invention

[0005] The embodiments of the present application provide a display panel, a display device and a display motherboard, aiming to improve the process performance of the display panel.

[0006] An embodiment of the first aspect of the present application provides a display panel, comprising: a display area and a non-display area arranged on at least one side of the display area; the display panel also comprises: a substrate, an array functional layer and an isolation structure, the array functional layer is arranged on one side of the substrate and comprises a marking unit located in the non-display area; the isolation structure is arranged on the side of the array functional layer away from the substrate, the isolation structure comprises a first isolation portion located in the non-display area, the first isolation portion encloses a clearance opening; the orthographic projection of the marking unit on the substrate is located within the orthographic projection of the clearance opening on the substrate.

[0007] According to an embodiment of the present application, the first isolation portion further encloses a plurality of first isolation openings, and the projection area of ​​the orthographic projection of the openings on the substrate is greater than or equal to the projection area of ​​the orthographic projection of the first isolation openings on the substrate.

[0008] According to an embodiment of the present application, the projection areas of the orthographic projections of the plurality of first isolation openings on the substrate are all equal.

[0009] According to an embodiment of the present application, a minimum distance between an orthographic projection of the marking unit on the substrate and an orthographic projection of the clearance opening on the substrate is 5 micrometers to 20 micrometers.

[0010] According to an embodiment of the present application, the marking unit includes a first marking unit and a second marking unit, the size of the first marking unit along the first direction is greater than or equal to the size of the second marking unit along the first direction, the clearance opening includes a first clearance opening and a second clearance opening, the orthographic projection of the first marking unit on the substrate is located within the orthographic projection of the first clearance opening on the substrate, the orthographic projection of the second marking unit on the substrate is located within the orthographic projection of the second clearance opening on the substrate, the size of the first clearance opening along the first direction is greater than or equal to the size of the second clearance opening in the first direction, and the first direction is perpendicular to the thickness direction of the display panel.

[0011] According to an embodiment of the present application, a size of the first marking unit along the second direction is greater than or equal to a size of the second marking unit along the second direction, a size of the first clearance opening along the second direction is greater than or equal to a size of the second clearance opening in the second direction, the first direction intersects with the second direction, and the second direction is perpendicular to the thickness direction of the display panel.

[0012] According to an embodiment of the present application, the orthographic projection of the marking unit on the substrate is a rectangle; or, the marking unit includes a first segment and a second segment connected to each other, the first segment is extended along the first direction, and the second segment is extended along the second direction.

[0013] According to an embodiment of the present application, along a thickness direction perpendicular to the display panel, a minimum spacing between the first isolation portion and an outer side wall of the marking unit along the first direction toward the first isolation portion is a first spacing, a minimum spacing between the first isolation portion and an outer side wall of the marking unit along the second direction toward the first isolation portion is a second spacing, and the first spacing is equal to the second spacing.

[0014] According to an embodiment of the present application, the isolation structure includes a first sublayer and a second sublayer, the second sublayer is located on a side of the first sublayer facing away from the substrate, and the orthographic projection of the first sublayer on the substrate is within the orthographic projection of the second sublayer on the substrate.

[0015] According to an embodiment of the present application, the isolation structure further includes a third sublayer, and the third sublayer is arranged on a side of the first sublayer facing the substrate.

[0016] In an embodiment of the present application, the orthographic projection of the first sub-layer on the substrate is located within the orthographic projection of the third sub-layer on the substrate.

[0017] In an embodiment of the present application, the isolation structure further includes a second isolation portion located in the display area. The second isolation portion encloses a second isolation opening, and a light-emitting unit is disposed in the second isolation opening.

[0018] In an embodiment of the present application, a light-emitting material is disposed in the first isolation opening, and the light-emitting material is at least partially the same as the material of the light-emitting unit.

[0019] In an embodiment of the present application, the projected area of the relief opening on the substrate is greater than or equal to the projected area of the second isolation opening on the substrate.

[0020] In an embodiment of the present application, the projected area of the second isolation opening on the substrate is equal to the projected area of the first isolation opening on the substrate.

[0021] In an embodiment of the present application, an insulating layer and a pixel definition layer are sequentially disposed between the marking unit and the isolation structure along the direction away from the substrate. The pixel definition layer includes a pixel defining portion. The pixel defining portion encloses a pixel opening located in the display area. The isolation structure is disposed on the side of the pixel defining portion away from the substrate. The pixel opening is communicated with the second isolation opening, and the light-emitting unit is located in the pixel opening.

[0022] In an embodiment of the present application, the display panel further includes a packaging layer. The packaging layer includes a first packaging portion located in the first isolation opening. The first packaging portion extends from the first isolation opening to the side of the first isolation portion away from the substrate.

[0023] In an embodiment of the present application, the first packaging portion is located on the side of the light-emitting material away from the substrate.

[0024] In an embodiment of the present application, adjacent two first packaging portions are spaced apart.

[0025] In an embodiment of the present application, the packaging layer further includes a second packaging portion located in the second isolation opening. The second packaging portion is located on the side of the light-emitting unit away from the substrate. The second packaging portion extends from the second isolation opening to the side of the second isolation portion away from the substrate.

[0026] In an embodiment of the present application, adjacent two second packaging portions are spaced apart.

[0027] In a second aspect, an embodiment of the present application provides a display device, including the display panel according to any one of the embodiments in the first aspect.

[0028] In the second aspect, an embodiment of the present application proposes a display motherboard, comprising multiple panel areas and non-panel areas arranged around each panel area; the display motherboard also includes: a support plate, a substrate, an array functional layer and an isolation structure, the substrate is arranged on one side of the support plate; the array functional layer is arranged on the side of the substrate away from the support plate and includes a marking unit located in the panel area and / or the non-panel area; the isolation structure is arranged on the side of the array functional layer away from the substrate, the isolation structure includes a first isolation portion, the first isolation portion is located in the panel area and / or the non-panel area, the first isolation portion encloses a clearance opening; the orthographic projection of the marking unit on the substrate is located within the orthographic projection of the clearance opening on the substrate.

[0029] According to an embodiment of the present application, the first isolation portion is located in the non-panel area, and the first isolation portion encloses a first isolation opening, so that the projection area of ​​the orthographic projection of the opening on the substrate is greater than or equal to the projection area of ​​the orthographic projection of the first isolation opening on the substrate.

[0030] According to an embodiment of the present application, the projection areas of the orthographic projections of the plurality of first isolation openings on the substrate are all equal.

[0031] According to an embodiment of the present application, the give-way opening includes a first marking unit and a second marking unit, the size of the first marking unit along the first direction is greater than or equal to the size of the second marking unit along the first direction, the give-way opening includes a first give-way opening and a second give-way opening, the orthographic projection of the first marking unit on the substrate is located within the orthographic projection of the first give-way opening on the substrate, the orthographic projection of the second marking unit on the substrate is located within the orthographic projection of the second give-way opening on the substrate, the size of the first give-way opening along the first direction is greater than or equal to the size of the second give-way opening in the first direction, and the first direction is perpendicular to the thickness direction of the display motherboard.

[0032] According to an embodiment of the present application, the size of the first marking unit along the second direction is greater than or equal to the size of the second marking unit along the second direction, the size of the first clearance opening along the second direction is greater than or equal to the size of the second clearance opening in the second direction, the first direction and the second direction intersect, and the second direction is perpendicular to the thickness direction.

[0033] According to an embodiment of the present application, a minimum distance between an orthographic projection of the marking unit on the substrate and an orthographic projection of the clearance opening on the substrate is 5 micrometers to 20 micrometers.

[0034] According to an embodiment of the present application, the orthographic projection of the marking unit on the substrate is a rectangle; or, the marking unit includes a first segment and a second segment connected to each other, the first segment is extended along the first direction, and the second segment is extended along the second direction.

[0035] According to an embodiment of the present application, along a thickness direction perpendicular to the display motherboard, a minimum spacing between the first isolation portion and an outer side wall of the marking unit along the first direction toward the first isolation portion is a first spacing, a minimum spacing between the first isolation portion and an outer side wall of the marking unit along the second direction toward the first isolation portion is a second spacing, and the first spacing is equal to the second spacing.

[0036] According to an embodiment of the present application, the isolation structure includes a first sublayer and a second sublayer, the second sublayer is located on a side of the first sublayer facing away from the substrate, and the orthographic projection of the first sublayer on the substrate is within the orthographic projection of the second sublayer on the substrate.

[0037] According to an embodiment of the present application, the isolation structure further includes a third sublayer, and the third sublayer is arranged on a side of the first sublayer facing the substrate.

[0038] According to an embodiment of the present application, an orthographic projection of the first sub-layer on the substrate is located within an orthographic projection of the third sub-layer on the substrate.

[0039] According to an embodiment of the present application, the display motherboard further includes an encapsulation layer, the encapsulation layer includes a first encapsulation portion located in the first isolation opening, and the first encapsulation portion extends from the first isolation opening to a side of the first isolation portion facing away from the substrate.

[0040] In an embodiment of the present application, the isolation structure includes a first isolation portion located in the non-display area, the first isolation portion is used to improve the packaging effect of the non-display area of ​​the display panel, and the first isolation portion blocks water, oxygen, etc. in the non-display area, reducing the water, oxygen, etc. entering from the non-display area to reach the display area of ​​the display panel, thereby improving the display quality of the display panel. The orthographic projection of the marking unit on the substrate is located within the orthographic projection of the clearance opening on the substrate, thereby reducing the interference of the first isolation portion on the marking unit and improving the process performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0042] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0043] Figure 2 yes Figure 1 Cross-section at the middle BB;

[0044] Figure 3 is a partial structural schematic diagram of another display panel provided in an embodiment of the present application;

[0045] Figure 4It is a schematic diagram of a partial structure of a display panel provided by an embodiment of the present application;

[0046] Figure 5 It is a schematic diagram of the structure of another display panel provided by an embodiment of the present application;

[0047] Figure 6 It is a schematic diagram of the structure of another display panel provided by an embodiment of the present application;

[0048] Figure 7 It is a schematic diagram of a partial structure of another display panel provided by an embodiment of the present application;

[0049] Figure 8 It is a schematic diagram of the structure of another display panel provided by an embodiment of the present application;

[0050] Figure 9 It is a schematic diagram of the structure of a display mother board provided by an embodiment of the present application.

[0051] Explanation of reference numerals: AA, display area; NA, non-display area; 10, support plate; 11, panel area; 12, non-panel area; 110, substrate; 120, array functional layer; 130, marking unit; 130a, first segment; 130b, second segment; 131, first marking unit; 132, second marking unit; 140, insulating layer; 200, isolation structure; 201, first sub-layer; 202, second sub-layer; 203, third sub-layer; 210, first isolation part; 211, relief opening; 211a, first relief opening; 211b, second relief opening; 212, side wall; 213, first isolation opening; 220, second isolation part; 221, second isolation opening; 400, pixel defining part; 410, pixel opening; 510, light-emitting material; 520, light-emitting unit; 610, first encapsulation part; 620, second encapsulation part; 701, first electrode; 702, second electrode; 703, second electrode material; X, first direction; Y, second direction; Z, thickness direction. Detailed implementation manners

[0052] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application. In the drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessarily obscuring the present application; and, for clarity, the dimensions of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0053] In the description of the present application, it should be noted that unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0054] The orientation words appearing in the following description are all the directions shown in the drawings and do not specifically limit the structure of the embodiments of the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0055] As Figures 1 to 3 shown, a display panel provided in an embodiment of the first aspect of the present application includes: a display area AA and a non-display area NA provided on at least one side of the display area AA; the display panel further includes: a substrate 110 and an array functional layer 120, the array functional layer 120 is disposed on one side of the substrate 110 and includes a marking unit 130 located in the non-display area NA; an isolation structure 200 is disposed on the side of the array functional layer 120 facing away from the substrate 110, the isolation structure 200 includes a first isolation portion 210 located in the non-display area NA, and the first isolation portion 210 encloses a relief opening 211; the orthographic projection of the marking unit 130 on the substrate 110 is located within the orthographic projection of the relief opening 211 on the substrate 110.

[0056] In this embodiment, the isolation structure 200 includes a first isolation portion 210 located in the non-display area NA. The first isolation portion 210 is used to improve the packaging effect of the non-display area NA of the display panel. The first isolation portion 210 blocks water, oxygen, etc. in the non-display area NA, and reduces the water, oxygen, etc. entering from the non-display area NA from reaching the display area AA of the display panel, thereby improving the display quality of the display panel. The orthographic projection of the marking unit 130 on the substrate 110 is located within the orthographic projection of the clearance opening 211 on the substrate 110, thereby reducing the interference of the first isolation portion 210 on the marking unit 130 and improving the process performance of the display panel.

[0057] like Figure 4 As shown, in some optional embodiments, the first isolation portion 210 further encloses a plurality of first isolation openings 213 , so that the projection area of ​​the orthographic projection of the openings 211 on the substrate 110 is equal to the projection area of ​​the orthographic projection of the first isolation openings 213 on the substrate 110 .

[0058] In these optional embodiments, when preparing the light-emitting layer and the electrode layer, the material of the light-emitting layer and the material of the electrode layer have a large drop at the edge of the isolation structure 200, and the material of the light-emitting layer and the material of the electrode layer are difficult to connect at the edge of the isolation structure 200, so they break and fall into the first isolation opening 213, and there is no need to use a precision mask plate, which can reduce the development and use of precision masks and reduce the preparation cost. When preparing the encapsulation layer on the material of the electrode layer, the encapsulation layer can overlap with at least part of the isolation structure 200 to improve the encapsulation effect, and the clearance opening 211 is used to expose at least part of the marking unit 130 away from the substrate 110. The opening area of ​​the clearance opening 211 is equal to the opening area of ​​the first isolation opening 213, so as to simplify the preparation process of the first isolation part 210.

[0059] like Figures 1 to 3 As shown, in some optional embodiments, the projection area of ​​the orthographic projection of the clearance opening 211 on the substrate 110 is larger than the projection area of ​​the orthographic projection of the first isolation opening 213 on the substrate 110 .

[0060] In these optional embodiments, the opening area of ​​the clearance opening 211 is larger than the opening area of ​​the first isolation opening 213. The opening area of ​​the clearance opening 211 is larger, so as to facilitate exposing at least part of the marking unit 130 away from the substrate 110, and reduce the interference of the first isolation part 210 on the identification mark unit 130. The opening area of ​​the first isolation opening 213 is smaller, which is conducive to increasing the number of first isolation openings 213 in the non-display area NA, increasing the contact area between the encapsulation layer and the first isolation part 210, and improving the encapsulation effect of the non-display area NA.

[0061] like Figure 2As shown, in some alternative embodiments, the minimum distance between the orthographic projection of the marking unit 130 on the substrate 110 and the orthographic projection of the relief opening 211 on the substrate 110 is 5 to 20 micrometers.

[0062] In these alternative embodiments, the minimum distance between the orthographic projection of the marking unit 130 on the substrate 110 and the orthographic projection of the relief opening 211 on the substrate 110 is 5 to 20 micrometers. When the minimum distance between the orthographic projection of the marking unit 130 on the substrate 110 and the orthographic projection of the relief opening 211 on the substrate 110 is less than 5 micrometers, the distance between the side wall 212 of the first isolation portion 210 facing the relief opening 211 and the marking unit 130 is relatively small, and the first isolation portion 210 will interfere with the identification of the marking unit 130. When the minimum distance between the orthographic projection of the marking unit 130 on the substrate 110 and the orthographic projection of the relief opening 211 on the substrate 110 is greater than 20 micrometers, the opening area of the relief opening 211 is relatively large, which will affect the number of the first isolation openings 213 and the packaging effect of the non-display area NA. The minimum distance between the orthographic projection of the marking unit 130 on the substrate 110 and the orthographic projection of the relief opening 211 on the substrate 110 can be 5 micrometers, 7 micrometers, 10 micrometers, 12 micrometers, 15 micrometers, 18 micrometers, 20 micrometers, etc.

[0063] As Figure 4 shown, the orthographic projection of the marking unit 130 on the substrate 110 is located within the orthographic projection of the relief opening 211 on the substrate 110. The relief opening 211 can expose the side of the marking unit 130 facing away from the substrate 110, thereby reducing the interference of the first isolation portion 210 on the identification of the marking unit 130. The opening area of the relief opening 211 is designed according to the size of the marking unit 130, and the opening area of the relief opening 211 is equal to the opening area of the first isolation opening 213, thereby facilitating the simplification of the manufacturing processes of the first isolation portion 210, the first isolation opening 213, and the relief opening 211.

[0064] As Figure 1 and Figure 2 shown, the orthographic projection of the marking unit 130 on the substrate 110 is located within the orthographic projection of the relief opening 211 on the substrate 110. The relief opening 211 can expose the side of the marking unit 130 facing away from the substrate 110, thereby reducing the interference of the first isolation portion 210 on the identification of the marking unit 130. The opening area of the relief opening 211 is designed according to the size of the marking unit 130, and the opening area of the first isolation opening 213 is smaller than the opening area of the relief opening 211, thereby increasing the number of the first isolation openings 213 in the non-display area NA, increasing the contact area between the packaging layer and the first isolation portion 210, and improving the packaging effect of the non-display area NA.

[0065] As Figure 5and Figure 6 As shown, in some optional embodiments, the marking unit 130 includes a first marking unit 131 and a second marking unit 132, the size of the first marking unit 131 along the first direction X is greater than or equal to the size of the second marking unit 132 along the first direction X, the clearance opening 211 includes a first clearance opening 211a and a second clearance opening 211b, the orthographic projection of the first marking unit 131 on the substrate 110 is located within the orthographic projection of the first clearance opening 211a on the substrate 110, the orthographic projection of the second marking unit 132 on the substrate 110 is located within the orthographic projection of the second clearance opening 211b on the substrate 110, the size of the first clearance opening 211a along the first direction X is greater than or equal to the size of the second clearance opening 211b in the first direction X, and the first direction X is perpendicular to the thickness direction Z of the display panel.

[0066] In these optional embodiments, the size of the first marking unit 131 along the first direction X is greater than or equal to the size of the second marking unit 132 along the first direction X, the orthographic projection of the first marking unit 131 on the substrate 110 is located within the orthographic projection of the first clearance opening 211a on the substrate 110, and the orthographic projection of the second marking unit 132 on the substrate 110 is located within the orthographic projection of the second clearance opening 211b on the substrate 110. The size of the first clearance opening 211a along the first direction X is set to be greater than or equal to the size of the second clearance opening 211b in the first direction X, so as to facilitate the first isolation portion 210 to expose the side of the first marking unit 131 away from the substrate 110, and the first isolation portion 210 to expose the side of the second marking unit 132 away from the substrate 110, and the first clearance opening 211a is adapted to the size of the first marking unit 131 along the first direction X, and the second clearance opening 211b is adapted to the size of the second marking unit 132 along the first direction X. Reducing the space occupied by the first clearance openings 211 a and the second clearance openings 211 b in the non-display area NA is beneficial to increasing the number of the first isolation openings 213 and improving the packaging effect of the non-display area NA of the display panel.

[0067] Optional, such as Figure 5 and Figure 6As shown, the dimension of the first marking unit 131 along the second direction Y is greater than or equal to the dimension of the second marking unit 132 along the second direction Y. The dimension of the first relief opening 211a along the second direction Y is greater than or equal to the dimension of the second relief opening 211b in the second direction Y. The first direction X and the second direction Y intersect, and the second direction Y is perpendicular to the thickness direction Z. The first relief opening 211a is adapted to the dimension of the first marking unit 131 along the second direction Y, and the second relief opening 211b is adapted to the dimension of the second marking unit 132 along the second direction Y. Reducing the occupation of the space of the non-display area NA by the first relief opening 211a and the second relief opening 211b is beneficial to increasing the number of the first isolation openings 213 and improving the packaging effect of the non-display area NA of the display panel.

[0068] Optionally, as Figure 5 shown, the orthographic projection of the marking unit 130 on the substrate 110 is rectangular.

[0069] Optionally, as Figure 5 shown, the marking unit 130 includes a first segment 130a and a second segment 130b connected to each other. The first segment 130a extends along the first direction X, and the second segment 130b extends along the second direction Y, so as to facilitate the identification of the marking unit 130 and improve the identification efficiency.

[0070] Optionally, as Figure 7 shown. Along the thickness direction Z perpendicular to the display panel, the minimum distance between the first isolation portion 210 and the outer side wall of the marking unit 130 on the side facing the first isolation portion 210 along the first direction X is the first distance, and the minimum distance between the first isolation portion 210 and the outer side wall of the marking unit 130 on the side facing the first isolation portion 210 along the second direction Y is the second distance. The first distance is equal to the second distance, so that the first isolation portion 210 is adapted to the shape of the marking isolation structure 200, thereby increasing the distribution area of the first isolation portion 210 and improving the packaging effect of the display panel.

[0071] Optionally, the first direction X, the second direction Y and the thickness direction Z of the display panel are perpendicular to each other in pairs.

[0072] As Figure 2 shown, in some optional embodiments, the isolation structure 200 includes a first sub-layer 201 and a second sub-layer 202. The second sub-layer 202 is located on the side of the first sub-layer 201 away from the substrate 110, and the orthographic projection of the first sub-layer 201 on the substrate 110 is within the orthographic projection of the second sub-layer 202 on the substrate 110.

[0073] In these alternative embodiments, the first sub-layer 201 and the second sub-layer 202 are stacked to form an isolation structure 200. The orthographic projection of the first sub-layer 201 close to the substrate 110 on the substrate 110 is located within the orthographic projection of the second sub-layer 202 on the substrate 110. The area of the second sub-layer 202 is larger than that of the first sub-layer 201, and the second sub-layer 202 covers the surface of the first sub-layer 201 close to the second sub-layer 202. At this time, the first sub-layer 201 is recessed relative to the second sub-layer 202 in a direction away from the isolation opening. When preparing the light-emitting layer and the electrode layer, there is a large drop in the materials of the light-emitting layer and the electrode layer at the edge of the isolation structure 200, and it is difficult for the materials of the light-emitting layer and the electrode layer to connect at the edge of the isolation structure 200, resulting in breakage. Without using a precision mask plate, the development and use of the precision mask plate can be reduced, and the manufacturing cost can be lowered. When preparing the encapsulation layer on the material of the electrode layer, the encapsulation layer can overlap with at least part of the isolation structure 200 to improve the encapsulation effect. The first isolation portion 210 blocks water, oxygen, etc. in the non-display area NA, reducing the water, oxygen, etc. entering from the non-display area NA from reaching the display area AA of the display panel, thereby improving the quality of the display panel.

[0074] Optionally, as Figure 2 shown, the isolation structure 200 further includes a third sub-layer 203, and the third sub-layer 203 is disposed on the side of the first sub-layer 201 facing the substrate 110. When performing side etching on the first sub-layer 201, the third sub-layer 203 can provide protection for the film layer on the substrate 110 side.

[0075] Optionally, as Figure 2 shown, the orthographic projection of the first sub-layer 201 on the substrate 110 is located within the orthographic projection of the third sub-layer 203 on the substrate 110, thereby enhancing the protection effect of the third sub-layer 203 on the film layer on the substrate 110 side.

[0076] Optionally, as Figure 8 shown, the isolation structure 200 further includes a second isolation portion 220 located in the display area AA. The second isolation portion 220 encloses a second isolation opening 221, and a light-emitting unit 520 is disposed in the second isolation opening 221. When preparing the light-emitting layer, there is a large drop in the material of the light-emitting layer at the edge of the second isolation portion 220 facing the second isolation opening 221, and it is difficult for the material of the light-emitting layer to connect at the edge of the isolation structure 200, resulting in breakage to form the light-emitting unit 520 in each second isolation opening 221.

[0077] Optionally, as Figure 2 shown, a light-emitting material 510 is disposed in the first isolation opening 213. The light-emitting material 510 is at least partially the same as the material of the light-emitting unit 520. The material of the light-emitting layer falls into the first isolation opening 213 to form the light-emitting material 510, and the material of the light-emitting layer falls into the second isolation opening 221 to form the light-emitting unit 520.

[0078] Optional, such as Figure 1 As shown, the projection area of ​​the orthographic projection of the give-way opening 211 on the substrate 110 is greater than the projection area of ​​the orthographic projection of the second isolation opening 221 on the substrate 110. The opening area of ​​the give-way opening 211 is greater than the opening area of ​​the second isolation opening 221. The opening area of ​​the give-way opening 211 is larger, so that it is convenient to expose at least part of the marking unit 130 away from the side of the substrate 110, and reduce the interference of the first isolation part 210 on the identification marking unit 130. The opening area of ​​the second isolation opening 221 is smaller, which is conducive to increasing the number of second isolation openings 221 in the display area AA, increasing the number of second isolation openings 221 and the number of light-emitting units 520 located in the second isolation openings 221, and improving the resolution of the display panel.

[0079] Optionally, the projection area of ​​the orthographic projection of the clearance opening 211 on the substrate 110 is equal to the projection area of ​​the orthographic projection of the second isolation opening 221 on the substrate 110. The opening area of ​​the clearance opening 211 is equal to the opening area of ​​the second isolation opening 221, thereby simplifying the preparation process of the isolation structure 200.

[0080] Optionally, the projection area of ​​the orthographic projection of the second isolation opening 221 on the substrate 110 is equal to the projection area of ​​the orthographic projection of the first isolation opening 213 on the substrate 110 , thereby simplifying the preparation process of the isolation structure 200 .

[0081] like Figure 8 As shown, in some optional embodiments, an insulating layer 140 and a pixel definition layer are arranged in sequence along a direction away from the substrate 110 between the array functional layer 120 and the isolation structure 200, the pixel definition layer includes a pixel defining portion 400, the pixel defining portion 400 encloses a pixel opening 410 located in the display area AA, the isolation structure 200 is arranged on the side of the pixel defining portion 400 away from the substrate 110, the pixel opening 410 is connected to the second isolation opening 221, and the light-emitting unit 520 is located at the pixel opening 410.

[0082] In these optional embodiments, the insulating layer 140 is disposed between the marking unit 130 and the pixel definition layer, and the pixel definition portion 400 of the pixel definition layer encloses a pixel opening 410 to dispose the light-emitting unit 520 and realize normal light emission of the light-emitting unit 520. In addition, the pixel definition portion 400 defines the disposition area of ​​each light-emitting unit 520 to reduce the cross-color defect between each light-emitting unit 520. The pixel opening 410 is connected to the second isolation opening 221, thereby reducing the influence of the second isolation portion 220 on the light emission of the light-emitting unit 520.

[0083] like Figure 2As shown, in some alternative embodiments, the display panel further includes a packaging layer. The packaging layer includes a first packaging portion 610 located in the first isolation opening 213. The first packaging portion 610 extends from the first isolation opening 213 to the side of the first isolation portion 210 facing away from the substrate 110.

[0084] In these alternative embodiments, the first packaging portion 610 overlaps the first isolation portion 210 for packaging the non-display area NA. The first packaging portion 610 extends from the first isolation opening 213 to the side of the first isolation portion 210 facing away from the substrate 110, thereby enhancing the packaging effect of the first packaging portion 610. Optionally, the first packaging portion 610 is located on the side of the light-emitting material 510 facing away from the substrate 110.

[0085] Optionally, as Figure 2 shown, adjacent two first packaging portions 610 are spaced apart, thereby achieving independent packaging, reducing the diffusion effect of water, oxygen, etc. between the first packaging portions 610, and enhancing the packaging ability.

[0086] As Figure 8 shown, in some alternative embodiments, the packaging layer further includes a second packaging portion 620 located in the second isolation opening 221. The second packaging portion 620 is located on the side of the light-emitting unit 520 facing away from the substrate 110. The second packaging portion 620 extends from the second isolation opening 221 to the side of the second isolation portion 220 facing away from the substrate 110.

[0087] In these alternative embodiments, the second packaging portion 620 can reduce the entry of water, oxygen, etc. into the light-emitting unit 520 and cause damage to the light-emitting unit 520, so as to enhance the reliability of the light-emitting unit 520. The second packaging portion 620 extends from the second isolation opening 221 to the side of the second isolation portion 220 facing away from the substrate 110, increasing the distribution area of the packaging portion and enhancing the packaging effect.

[0088] Optionally, as Figure 8 shown, adjacent two second packaging portions 620 are spaced apart, thereby achieving independent packaging, reducing the diffusion effect of water, oxygen, etc. between the second packaging portions 620, and enhancing the packaging ability.

[0089] Optionally, as Figure 8 shown, the display panel includes a first electrode layer. The first electrode layer includes a first electrode 701 located on the side of the light-emitting unit 520 facing the substrate 110. The first electrode 701 is exposed through the pixel opening 410. The first electrode 701 serves as the anode or cathode of the light-emitting unit 520.

[0090] Optionally, as Figure 2 and Figure 8As shown, the display panel includes a second electrode layer, the second electrode 702 layer includes a second electrode material 703 located in the first isolation opening 213, the second electrode material 703 is located between the first packaging portion 610 and the light-emitting material 510, the second electrode material 703 is broken at the edge of the first isolation portion 210 to form the second electrode material 703 located in the first isolation opening 213, and the first packaging portion 610 is formed on the second electrode material 703.

[0091] Optional, such as Figure 8 As shown, the second electrode layer further includes a second electrode 702 located on the side of the light emitting unit 520 away from the substrate 110 , and one of the first electrode 701 and the second electrode 702 serves as an anode of the light emitting unit 520 , and the other serves as a cathode of the light emitting unit 520 .

[0092] The embodiment of the second aspect of the present application also provides a display device, including the display panel of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel of any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel of any of the above-mentioned embodiments of the first aspect, which will not be repeated here.

[0093] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0094] like Figure 9 As shown, an embodiment of the third aspect of the present application also provides a display motherboard, including multiple panel areas 11 and non-panel areas 12 arranged around each panel area 11; the display motherboard also includes: a support plate 10, a substrate 110 and an isolation structure 200; the substrate 110 is arranged on one side of the support plate 10, the array functional layer 120 is arranged on one side of the substrate 110 and includes a marking unit 130 located in the panel area 11 and / or the non-panel area 12; the isolation structure 200 is arranged on the side of the array functional layer 120 away from the substrate 110, the isolation structure 200 includes a first isolation portion 210 located in the panel area 11 and / or the non-panel area 12, and the first isolation portion 210 encloses a clearance opening 211; the orthographic projection of the marking unit 130 on the substrate 110 is located within the orthographic projection of the clearance opening 211 on the substrate 110.

[0095] In this embodiment, the isolation structure 200 includes a first isolation portion 210 located in the panel area 11 and / or the non-panel area 12. The first isolation portion 210 is used to improve the packaging effect of the panel area 11 and the non-panel area 12. The first isolation portion 210 blocks water, oxygen, etc., and reduces water, oxygen, etc. from reaching the display area AA of the display panel, thereby improving the display quality of the display panel. The orthographic projection of the marking unit 130 on the substrate 110 is located within the orthographic projection of the clearance opening 211 on the substrate 110, thereby reducing the interference of the first isolation portion 210 on the marking unit 130 and improving the process performance of the display panel.

[0096] Optionally, the first isolation portion 210 and the marking unit 130 are located in the non-panel area 12, so that the occupation of the marking unit 130 in the panel area 11 can be reduced, and the performance of the display panel in the panel area 11 is improved. The first isolation portion 210 can improve the barrier effect of water and oxygen in the non-panel area 12, and reduce the diffusion of water, oxygen, etc. in the non-panel area 12 to the panel area 11.

[0097] In some optional embodiments, the configuration of technical features such as the packaging portion, the isolation structure 200 , and the marking unit 130 is as described above and will not be repeated here.

[0098] Optionally, the panel area 11 is provided with a display panel in any embodiment of the first aspect mentioned above.

[0099] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that: include: a display area and a non-display area disposed on at least one side of the display area; The display panel further includes: substrate; An array function layer, the array function layer is arranged on one side of the substrate and includes a marking unit located in the non-display area; An isolation structure is arranged on a side of the array functional layer away from the substrate, the isolation structure comprises a first isolation portion located in the non-display area, the first isolation portion encloses a clearance opening; The orthographic projection of the marking unit on the substrate is located within the orthographic projection of the clearance opening on the substrate.

2. The display panel according to claim 1, characterized in that: The first isolation portion further encloses a plurality of first isolation openings, and the projection area of ​​the orthographic projection of the clearance openings on the substrate is greater than or equal to the projection area of ​​the orthographic projection of the first isolation openings on the substrate; Preferably, the projection areas of the orthographic projections of the plurality of first isolation openings on the substrate are all equal.

3. The display panel according to claim 1, characterized in that: A minimum distance between an orthographic projection of the marking unit on the substrate and an orthographic projection of the clearance opening on the substrate is 5 micrometers to 20 micrometers.

4. The display panel according to claim 2, characterized in that: The marking unit includes a first marking unit and a second marking unit, the size of the first marking unit along a first direction is greater than or equal to the size of the second marking unit along the first direction, the clearance opening includes a first clearance opening and a second clearance opening, the orthographic projection of the first marking unit on the substrate is located within the orthographic projection of the first clearance opening on the substrate, the orthographic projection of the second marking unit on the substrate is located within the orthographic projection of the second clearance opening on the substrate, the size of the first clearance opening along the first direction is greater than or equal to the size of the second clearance opening in the first direction, and the first direction is perpendicular to the thickness direction of the display panel; Preferably, the size of the first marking unit along the second direction is greater than or equal to the size of the second marking unit along the second direction, the size of the first clearance opening along the second direction is greater than or equal to the size of the second clearance opening in the second direction, the first direction and the second direction intersect, and the second direction is perpendicular to the thickness direction of the display panel.

5. The display panel according to claim 1, characterized in that: The orthographic projection of the marking unit on the substrate is a rectangle; or, the marking unit includes a first segment and a second segment connected to each other, the first segment is extended along a first direction, and the second segment is extended along a second direction.

6. The display panel according to claim 1, characterized in that: Along the thickness direction perpendicular to the display panel, the minimum spacing between the first isolation portion and the outer wall of the marking unit along the first direction toward the first isolation portion is a first spacing, the minimum spacing between the first isolation portion and the outer wall of the marking unit along the second direction toward the first isolation portion is a second spacing, and the first spacing is equal to the second spacing.

7. The display panel according to claim 1, characterized in that: The isolation structure includes a first sublayer and a second sublayer, the second sublayer is located on a side of the first sublayer away from the substrate, and an orthographic projection of the first sublayer on the substrate is located within an orthographic projection of the second sublayer on the substrate; Preferably, the isolation structure further comprises a third sublayer, and the third sublayer is arranged on a side of the first sublayer facing the substrate; Preferably, the orthographic projection of the first sub-layer on the substrate is located within the orthographic projection of the third sub-layer on the substrate.

8. The display panel according to claim 1, characterized in that: The isolation structure further includes a second isolation portion located in the display area, the second isolation portion encloses a second isolation opening, and the second isolation opening is provided with a light-emitting unit; Preferably, a luminescent material is disposed in the first isolation opening, and the luminescent material is at least partially the same as the material of the luminescent unit; Preferably, the projection area of ​​the orthographic projection of the clearance opening on the substrate is greater than or equal to the projection area of ​​the orthographic projection of the second isolation opening on the substrate; Preferably, a projection area of ​​an orthographic projection of the second isolation opening on the substrate is equal to a projection area of ​​an orthographic projection of the first isolation opening on the substrate.

9. The display panel according to claim 8, characterized in that: An insulating layer and a pixel definition layer are arranged in sequence along a direction away from the substrate between the marking unit and the isolation structure. The pixel definition layer includes a pixel defining portion, which encloses a pixel opening located in the display area. The isolation structure is arranged on a side of the pixel defining portion away from the substrate. The pixel opening is connected to the second isolation opening, and the light-emitting unit is located in the pixel opening.

10. The display panel according to claim 9, characterized in that: The display panel further includes an encapsulation layer, the encapsulation layer includes a first encapsulation portion located in the first isolation opening, the first encapsulation portion extending from the first isolation opening to a side of the first isolation portion away from the substrate; Preferably, the first encapsulation portion is located on a side of the light-emitting material away from the substrate; Preferably, two adjacent first packaging parts are arranged at an interval.

11. The display panel according to claim 10, characterized in that: The encapsulation layer further includes a second encapsulation portion located in the second isolation opening, the second encapsulation portion is located on a side of the light emitting unit away from the substrate, and the second encapsulation portion extends from the second isolation opening to a side of the second isolation portion away from the substrate; Preferably, two adjacent second packaging parts are arranged at an interval.

12. A display device, characterized in that: A display panel comprising any one of claims 1 to 11.

13. A display motherboard, characterized in that: The display motherboard includes a plurality of panel areas and a non-panel area arranged around each of the panel areas; the display motherboard also includes: Support plate; A substrate, disposed on one side of the support plate; An array function layer, the array function layer is arranged on a side of the substrate away from the support plate and includes a marking unit located in the panel area and / or the non-panel area; An isolation structure is arranged on a side of the array functional layer away from the substrate, the isolation structure comprises a first isolation portion, the first isolation portion is located in the panel area and / or the non-panel area, and the first isolation portion encloses a clearance opening; The orthographic projection of the marking unit on the substrate is located within the orthographic projection of the clearance opening on the substrate.

14. The display motherboard according to claim 13, characterized in that: The first isolation portion is located in the non-panel area, the first isolation portion encloses a first isolation opening, and the projection area of ​​the orthographic projection of the clearance opening on the substrate is greater than or equal to the projection area of ​​the orthographic projection of the first isolation opening on the substrate; Preferably, the projection areas of the orthographic projections of the plurality of first isolation openings on the substrate are all equal.

15. The display motherboard according to claim 14, characterized in that: The clearance opening includes a first marking unit and a second marking unit, the size of the first marking unit along the first direction is greater than or equal to the size of the second marking unit along the first direction, the clearance opening includes a first clearance opening and a second clearance opening, the orthographic projection of the first marking unit on the substrate is located within the orthographic projection of the first clearance opening on the substrate, the orthographic projection of the second marking unit on the substrate is located within the orthographic projection of the second clearance opening on the substrate, the size of the first clearance opening along the first direction is greater than or equal to the size of the second clearance opening in the first direction, and the first direction is perpendicular to the thickness direction of the display motherboard; Preferably, the size of the first marking unit along the second direction is greater than or equal to the size of the second marking unit along the second direction, the size of the first clearance opening along the second direction is greater than or equal to the size of the second clearance opening in the second direction, the first direction and the second direction intersect, and the second direction is perpendicular to the thickness direction.

16. The display motherboard according to claim 14, characterized in that: A minimum distance between an orthographic projection of the marking unit on the substrate and an orthographic projection of the clearance opening on the substrate is 5 micrometers to 20 micrometers.

17. The display motherboard according to claim 14, characterized in that: The orthographic projection of the marking unit on the substrate is a rectangle; or, the marking unit includes a first segment and a second segment connected to each other, the first segment is extended along a first direction, and the second segment is extended along a second direction.

18. The display motherboard according to claim 14, characterized in that: Along the thickness direction perpendicular to the display motherboard, the minimum spacing between the first isolation portion and the outer side wall of the marking unit along the first direction toward the first isolation portion is a first spacing, the minimum spacing between the first isolation portion and the outer side wall of the marking unit along the second direction toward the first isolation portion is a second spacing, and the first spacing is equal to the second spacing.

19. The display motherboard according to claim 14, characterized in that: The isolation structure includes a first sublayer and a second sublayer, the second sublayer is located on a side of the first sublayer away from the substrate, and an orthographic projection of the first sublayer on the substrate is located within an orthographic projection of the second sublayer on the substrate; Preferably, the isolation structure further comprises a third sublayer, and the third sublayer is arranged on a side of the first sublayer facing the substrate; Preferably, the orthographic projection of the first sub-layer on the substrate is located within the orthographic projection of the third sub-layer on the substrate.

20. The display motherboard according to claim 14, characterized in that: The display motherboard further includes a packaging layer, wherein the packaging layer includes a first packaging portion located in the first isolation opening, and the first packaging portion extends from the first isolation opening to a side of the first isolation portion away from the substrate.

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