Display panel, display device and display motherboard

Abstract

Embodiments of the present application provide a display panel, a display device and a display motherboard. 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 and an isolation structure arranged on one side of the substrate. The isolation structure comprises a first isolation part and a functional isolation structure arranged in the non-display area. The first isolation part and the functional isolation structure are arranged in a spaced manner. The functional isolation structure is multiplexed as at least one of a detection unit and a marking unit. The isolation structure comprises the first isolation part arranged in the non-display area. The first isolation part is used to improve the packaging effect of the non-display area of the display panel. The isolation structure comprises the functional isolation structure arranged in the non-display area. The functional isolation structure is multiplexed as at least one of the detection unit and the marking unit. The first isolation part and the functional isolation structure are arranged in a spaced manner. Thus, the interference of the first isolation part on the functional isolation structure is reduced, and the process performance of the display panel is improved.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display devices.

[0003] In traditional display panel manufacturing, a fine metal mask (FMM) is typically used to pattern the light-emitting pixels. FMM technology is mature and has extensive mass production experience. However, FMM technology also suffers from limitations in precision, high development costs, and long development cycles. Fine metal mask-less technology eliminates the limitations of traditional OLED processes on display size, resolution, and other screen performance characteristics, offering advantages such as high performance, full-size display, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A describe relevant content regarding fine metal mask-less technology and are provided for reference.

[0004] However, the current display products' manufacturing processes need improvement. Summary of the Invention

[0005] This application provides 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 this application provides a display panel, including: a display area and a non-display area disposed on at least one side of the display area; the display panel further includes a substrate and an isolation structure, the isolation structure being disposed on one side of the substrate, the isolation structure including a first isolation portion located in the non-display area and a functional isolation structure, the first isolation portion and the functional isolation structure being spaced apart; wherein, the functional isolation structure is reused as at least one of a detection unit and a marking unit.

[0007] According to embodiments of this application, the functional isolation structure includes a marker isolation structure, which is reused as a marker unit.

[0008] According to embodiments of this application, the minimum distance between the marker isolation structure and the first isolation portion is 5 micrometers to 20 micrometers.

[0009] According to the embodiments of this application, the orthographic projection of the marking isolation structure on the substrate is rectangular; or, the marking isolation structure includes a first segment and a second segment connected to each other, the first segment extending along a first direction and the second segment extending along a second direction.

[0010] According to the embodiments of this application, along the thickness direction perpendicular to the display panel, the minimum distance between the first isolation portion and the outer wall of the first segment facing the first isolation portion along the first direction and / or the second direction is the first distance, and the minimum distance between the first isolation portion and the outer wall of the second segment facing the first isolation portion along the first direction and / or the second direction is the second distance, and the first distance is equal to the second distance.

[0011] According to an embodiment of this application, the substrate includes a substrate and a driving circuit layer disposed between the isolation structure and the substrate. The driving circuit layer includes metal traces, and the orthographic projection of the metal traces on the substrate is spaced apart from the orthographic projection of the marking isolation structure on the substrate.

[0012] According to an embodiment of this application, the first isolation portion encloses and forms a clearance opening, the marked isolation structure is located inside the clearance opening, and the orthogonal projection of the metal trace on the substrate is located outside the orthogonal projection of the clearance opening on the substrate.

[0013] According to the embodiments of this application, the functional isolation structure includes a detection isolation structure, which is multiplexed as a detection unit; the substrate includes a substrate and a driving circuit layer disposed between the isolation structure and the substrate, the driving circuit layer includes a detection signal line, and the detection signal line is electrically connected to the detection isolation structure.

[0014] According to an embodiment of this application, the driving circuit layer further includes an insulating layer disposed between the detection signal line and the detection isolation structure, the insulating layer having a first via, and the detection signal line passing through the first via and the detection isolation structure.

[0015] According to an embodiment of this application, a pixel definition layer is provided between the insulating layer and the detection isolation structure. The pixel definition layer includes a pixel defining portion. The detection isolation structure is provided on the side of the pixel defining portion away from the substrate. The pixel defining portion is provided with a second via. The first via is connected to the second via. The detection signal line is connected to the detection isolation structure through the first via and the second via.

[0016] According to embodiments of this application, the isolation structure includes multiple sublayers, at least one of which includes a metallic material.

[0017] According to an embodiment of this application, a first isolation portion is formed to enclose a first isolation opening. The isolation structure includes a first sub-layer and a second sub-layer. The second sub-layer is located on the side of the first sub-layer facing away from the substrate, and the orthographic projection of the first sub-layer on the substrate is located within the orthographic projection of the second sub-layer on the substrate.

[0018] According to embodiments of this application, the isolation structure further includes a third sublayer disposed on the side of the first sublayer facing the substrate.

[0019] According to an embodiment of this application, the orthographic projection of the first sublayer on the substrate lies within the orthographic projection of the third sublayer on the substrate.

[0020] According to an embodiment of this application, the first isolation portion encloses and forms a clearance opening and a first isolation opening, and the functional isolation structure is located within the clearance opening.

[0021] According to an embodiment of this application, the isolation structure further includes a second isolation portion located in the display area, the second isolation portion forming a second isolation opening, the second isolation opening being used to accommodate the light-emitting unit.

[0022] According to an embodiment of this application, the functional isolation structure includes a marker isolation structure, the marker isolation structure is reused as a marker unit, and the minimum distance between the marker isolation structure and the second isolation part is greater than or equal to 5 micrometers.

[0023] According to embodiments of this application, the opening area of ​​the clearance opening is greater than the opening area of ​​the first isolation opening and / or the opening area of ​​the second isolation opening.

[0024] According to an embodiment of this application, the display panel further includes a pixel definition layer, the pixel definition layer includes a pixel limiting portion, an isolation structure is disposed on the side of the pixel limiting portion away from the substrate, the pixel limiting portion surrounds to form a pixel opening located in the display area, and the pixel opening is connected to a second isolation opening.

[0025] According to embodiments of this application, the display panel further includes a light-emitting layer, which includes light-emitting units located in pixel openings.

[0026] According to an embodiment of this application, the display panel further includes an encapsulation layer, the encapsulation layer including a first encapsulation portion located in a first isolation opening, the first encapsulation portion extending from the first isolation opening to the side of the first isolation portion away from the substrate.

[0027] According to an embodiment of this application, the light-emitting layer further includes a light-emitting material located in the first isolation opening, and the first encapsulation portion is located on the side of the light-emitting material away from the substrate.

[0028] According to embodiments of this application, the luminescent material is at least partially the same as the material of the luminescent unit.

[0029] According to the embodiments of this application, two adjacent first packaging portions are spaced apart.

[0030] According to an embodiment of this application, the display panel further includes an encapsulation layer, the encapsulation layer including a second encapsulation portion located in a second isolation opening, the second encapsulation portion being located on the side of the light-emitting unit away from the substrate, and the second encapsulation portion extending from the second isolation opening to the side of the second isolation portion away from the substrate.

[0031] According to the embodiments of this application, two adjacent second packaging portions are spaced apart.

[0032] According to an embodiment of this application, the display panel includes a first electrode layer, the first electrode layer including a first electrode located on the side of the light-emitting unit facing the substrate, the first electrode being exposed through a pixel opening.

[0033] According to an embodiment of this application, the display panel includes a second electrode layer, the second electrode layer including a second electrode material located in a first isolation opening, the second electrode material being located between a first encapsulation portion and a light-emitting material.

[0034] According to embodiments of this application, the second electrode layer further includes a second electrode located on the side of the light-emitting unit away from the substrate.

[0035] Secondly, embodiments of this application provide a display device including the display panel in any of the embodiments of the first aspect described above.

[0036] Thirdly, embodiments of this application propose a display motherboard, including multiple panel areas and non-panel areas surrounding each panel area; the display motherboard further includes: a support plate; an isolation structure disposed on one side of the support plate, the isolation structure including a first isolation part and a functional isolation structure, the first isolation part being located in the panel area and / or the non-panel area, the functional isolation structure being located in the panel area and / or the non-panel area, the first isolation part and the functional isolation structure being spaced apart, wherein the functional isolation structure is reused as at least one of a detection unit and a marking unit.

[0037] According to the embodiments of this application, the first isolation part and the functional isolation structure are located in the non-panel area, and the functional isolation structure includes a marker isolation structure, which is reused as a marker unit.

[0038] According to embodiments of this application, the minimum distance between the marker isolation structure and the first isolation portion is 5 micrometers to 20 micrometers.

[0039] According to the embodiments of this application, the orthographic projection of the marking isolation structure on the support plate is a rectangle; or, the marking isolation structure includes a first segment and a second segment connected to each other, the first segment extending along a first direction and the second segment extending along a second direction.

[0040] According to the embodiments of this application, along the thickness direction perpendicular to the display motherboard, the minimum distance between the first isolation portion and the outer wall of the first segment facing the first isolation portion along the first direction and / or the second direction is the first distance, and the minimum distance between the first isolation portion and the outer wall of the second segment facing the first isolation portion along the first direction and / or the second direction is the second distance, and the first distance is equal to the second distance.

[0041] According to an embodiment of this application, a metal trace is provided between the support plate and the isolation structure, and the orthographic projection of the metal trace on the support plate and the orthographic projection of the isolation structure on the support plate are spaced apart.

[0042] According to an embodiment of this application, the first isolation portion encloses and forms a clearance opening, the marked isolation structure is located inside the clearance opening, and the orthographic projection of the metal trace on the support plate is located outside the orthographic projection of the clearance opening on the support plate.

[0043] According to the embodiments of this application, the first isolation part and the functional isolation structure are located in the non-panel area. The functional isolation structure includes a detection isolation structure, which is reused as a detection unit. The display motherboard also includes a driving circuit layer disposed between the support plate and the isolation structure. The driving circuit layer includes a detection signal line, which is electrically connected to the detection isolation structure.

[0044] According to an embodiment of this application, the driving circuit layer further includes an insulating layer disposed between the detection signal line and the detection isolation structure, the insulating layer having a first via, and the detection signal line passing through the first via and the detection isolation structure.

[0045] According to an embodiment of this application, a pixel definition layer is provided between the insulating layer and the detection isolation structure. The pixel definition layer includes a pixel limiting portion. The detection isolation structure is provided on the side of the pixel limiting portion away from the support plate. The pixel limiting portion is provided with a second via. The first via and the second via are connected. The detection signal line is connected to the detection isolation structure through the first via and the second via.

[0046] According to embodiments of this application, the isolation structure includes multiple sublayers, at least one of which includes a metallic material.

[0047] According to an embodiment of this application, the first isolation portion is located in the non-panel area and encloses to form a first isolation opening. The isolation structure includes a first sub-layer and a second sub-layer. The second sub-layer is located on the side of the first sub-layer away from the support plate. The orthographic projection of the first sub-layer on the support plate is located within the orthographic projection of the second sub-layer on the support plate.

[0048] According to an embodiment of this application, the isolation structure further includes a third sub-layer disposed on the side of the first sub-layer facing the support plate.

[0049] According to an embodiment of this application, the orthographic projection of the first sublayer on the support plate lies within the orthographic projection of the third sublayer on the support plate.

[0050] According to an embodiment of this application, the display motherboard further includes an encapsulation layer, the encapsulation layer including a first encapsulation portion located in a first isolation opening, the first encapsulation portion extending from the first isolation opening to the side of the first isolation portion away from the support plate.

[0051] According to the embodiments of this application, two adjacent first packaging portions are spaced apart.

[0052] In the embodiments of this application, the isolation structure includes a first isolation portion located in the non-display area. The first isolation portion is used to improve the encapsulation effect of the non-display area of ​​the display panel. The isolation structure also includes a functional isolation structure located in the non-display area. The functional isolation structure is reused as at least one of a detection unit and a marking unit. The first isolation portion and the functional isolation structure are spaced apart, thereby reducing the interference of the first isolation portion on the functional isolation structure and improving the process performance of the display panel. Attached Figure Description

[0053] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0054] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0055] Figure 2 yes Figure 1 Cross-sectional view at point BB;

[0056] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0057] Figure 4 This is a schematic diagram of the structure of another display panel provided in the embodiments of this application;

[0058] Figure 5 This is a schematic diagram of the structure of another display panel provided in the embodiments of this application;

[0059] Figure 6 This is a schematic diagram of the structure of a display motherboard provided in an embodiment of this application;

[0060] Figure 7 This is a schematic diagram of another display motherboard provided in an embodiment of this application.

[0061] Explanation of reference numerals in the attached figures: AA, display area; NA, non-display area; 10, support plate; 11, panel area; 12, non-panel area; 100, substrate; 110, substrate; 120, driving circuit layer; 121, metal trace; 122, detection signal line; 123, insulating layer; 124, first via; 200, isolation structure; 201, first sub-layer; 202, second sub-layer; 203, third sub-layer; 210, first isolation section; 211, clearance opening; 212, sidewall; 213, first isolation opening; 220, function. 221. Isolation structure; 221a. Marking isolation structure; 221b. Second segment; 222. Detection isolation structure; 230. Second isolation part; 231. Second isolation opening; 400. Pixel limiting part; 401. Second via; 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

[0062] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0063] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] like Figure 1 and Figure 2 As shown, a display panel provided in the first aspect of this application includes: a display area AA and a non-display area NA disposed on at least one side of the display area AA; the display panel further includes a substrate 100 and an isolation structure 200, the isolation structure 200 is disposed on one side of the substrate 100, the isolation structure 200 includes a first isolation portion 210 located in the non-display area NA and a functional isolation structure 220, the first isolation portion 210 and the functional isolation structure 220 being spaced apart; wherein, the functional isolation structure 220 is multiplexed as at least one of a detection unit and a marking unit.

[0066] 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 encapsulation effect of the non-display area NA of the display panel. When the light-emitting layer and the electrode layer are fabricated, the materials of the light-emitting layer and the electrode layer have a large drop at the edge of the isolation structure 200, making it difficult for the materials of the light-emitting layer and the electrode layer to connect at the edge of the isolation structure 200, thus causing breakage. This eliminates the need for a precision mask, reducing the development and use of precision masks and lowering manufacturing costs. When an encapsulation layer is fabricated on the electrode layer material, 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., from entering the non-display area NA, reducing the amount of water, oxygen, etc., entering from the non-display area NA and reaching the display area AA of the display panel, thereby improving the display quality of the display panel. The isolation structure 200 includes a functional isolation structure 220 located in the non-display area NA. The functional isolation structure 220 is reused as at least one of a detection unit and a marking unit. The first isolation part 210 and the functional isolation structure 220 are spaced apart, thereby reducing the interference of the first isolation part 210 on the functional isolation structure 220 and improving the process performance of the display panel.

[0067] In some implementations, when a detection unit or a marking unit is set in a non-display area NA, the isolation structure 200 covering the detection unit or marking unit may affect the function of the detection unit or marking unit. In the embodiments of this application, by reusing the functional isolation structure 220 as at least one of the detection unit and the marking unit, the effectiveness of the detection unit and the marking unit can be improved.

[0068] like Figure 1 and Figure 2 As shown, in some optional embodiments, the functional isolation structure 220 includes a marker isolation structure 221, which is reused as a marker unit.

[0069] In these optional embodiments, the marker isolation structure 221 is reused as a marker unit. The marker isolation structure 221 can be used to perform functions such as alignment. Optionally, the minimum distance between the marker isolation structure 221 and the first isolation portion 210 is 5 micrometers to 20 micrometers, thereby reducing the interference caused by the first isolation portion 210 to the identification of the marker isolation structure 221 and improving the accuracy of the identification of the marker isolation structure 221. The minimum distance between the marker isolation structure 221 and the first isolation portion 210 can be 5 micrometers, 8 micrometers, 10 micrometers, 15 micrometers, 20 micrometers, etc.

[0070] Optionally, the orthographic projection of the marked isolation structure 221 onto the substrate 100 is rectangular.

[0071] Optional, such as Figure 1 As shown, the marking isolation structure 221 includes a first segment 221a and a second segment 221b connected to each other. The first segment 221a extends along a first direction X, and the second segment 221b extends along a second direction Y. Optionally, the first segment 221a at the middle of the first direction X and the second segment 221b at the middle of the second direction Y are integrally formed to facilitate the distinction between the marking isolation structure 221 and the first isolation portion 210, thereby improving recognition efficiency.

[0072] Optionally, the first direction X, the second direction Y, and the thickness direction Z of the display panel are all perpendicular to each other.

[0073] Optional, such as Figure 3As shown, along the thickness direction Z perpendicular to the display panel, the minimum distance between the first isolation portion 210 and the outer wall 212 of the first segment 221a facing the first isolation portion 210 along the first direction X and / or the second direction Y is the first distance, and the minimum distance between the first isolation portion 210 and the outer wall 212 of the second segment 221b facing the first isolation portion 210 along the first direction X and / or the second direction Y is the second distance. The first distance is equal to the second distance, thereby making the shape of the first isolation portion 210 conform to the shape of the marking isolation structure 221. Optionally, the distance between the first isolation portion 210 and the first segment 221a facing the first direction X is the second distance. The minimum spacing between the ends of the first isolation portion 210 is the first spacing. The minimum spacing between the first isolation portion 210 and the side of the first segment 221a facing the first isolation portion 210 along the second direction Y is the first spacing. The minimum spacing between the ends of the first isolation portion 210 and the second segment 221b facing the first isolation portion 210 along the second direction Y is the second spacing. The minimum spacing between the side of the first isolation portion 210 and the second segment 221b facing the first isolation portion 210 along the first direction X is the second spacing. This increases the distribution area of ​​the first isolation portion 210 and improves the encapsulation effect of the display panel.

[0074] like Figure 2 As shown, in some optional embodiments, the substrate 100 includes a substrate 110 and a driving circuit layer 120 disposed between the isolation structure 200 and the substrate 110. The driving circuit layer 120 includes metal traces 121, and the orthographic projection of the metal traces 121 on the substrate 110 is spaced apart from the orthographic projection of the marked isolation structure 221 on the substrate 110.

[0075] In these optional embodiments, the driving circuit layer 120 is used to drive the light-emitting unit 520. The driving circuit layer 120 is provided with metal traces 121. The metal traces 121 interfere with the identification of the marker isolation structure 221. The orthographic projection of the metal traces 121 on the substrate 110 and the orthographic projection of the marker isolation structure 221 on the substrate 110 are spaced apart to improve the accuracy of the identification of the marker isolation structure 221.

[0076] Optional, such as Figure 2 As shown, the first isolation portion 210 encloses and forms a clearance opening 211. The marking isolation structure 221 is located inside the clearance opening 211. The orthographic projection of the metal trace 121 on the substrate 110 is outside the orthographic projection of the clearance opening 211 on the substrate 110. The metal trace 121 and the marking isolation structure 221 have a certain distance along the direction Z perpendicular to the thickness of the display panel, thereby further reducing the interference of the metal trace 121 on the identification of the marking isolation structure 221 and improving the accuracy of the identification of the marking isolation structure 221.

[0077] like Figure 1and Figure 4 As shown, in some optional embodiments, the functional isolation structure 220 includes a detection isolation structure 222, which is multiplexed as a detection unit; the substrate 100 includes a substrate 110 and a driving circuit layer 120 disposed between the isolation structure 200 and the substrate 110, the driving circuit layer 120 includes a detection signal line 122, which is electrically connected to the detection isolation structure 222.

[0078] In these optional embodiments, the detection isolation structure 222 is multiplexed as a detection unit for signal detection of the drive circuit layer 120. The drive circuit layer 120 includes a detection signal line 122, which is electrically connected to the detection isolation structure 222 so that the electrical signal can be transmitted to the detection signal line 122 through the detection isolation structure 222, thereby improving the shielding effect of the isolation structure 200 on the pins of the detection signal line 122.

[0079] Optional, such as Figure 4 As shown, an insulating layer 123 is provided between the detection signal line 122 and the detection isolation structure 222. The insulating layer 123 is provided with a first via 124. The detection signal line 122 passes through the first via 124 and is connected to the detection isolation structure 222. The insulating layer 123 is used to insulate between the isolation structure 200 and the detection signal line 122. The detection signal line 122 passes through the first via 124 and is connected to the detection isolation structure 222. Part of the material of the detection isolation structure 222 is filled into the first via 124 to connect the detection signal line 122.

[0080] Optional, such as Figure 4 As shown, a pixel definition layer is provided between the insulating layer 123 and the detection isolation structure 222. The pixel definition layer includes a pixel defining portion 400. The detection isolation structure 222 is disposed on the side of the pixel defining portion 400 away from the substrate 110. The pixel defining portion 400 is provided with a second via 401. The first via 124 is connected to the second via 401. The detection signal line 122 is connected to the detection isolation structure 222 through the first via 124 and the second via 401. The pixel defining portion 400 also encloses and forms a pixel opening 410 located in the display area AA. The pixel opening 410 is used to set the light-emitting unit 520.

[0081] like Figure 2 and Figure 4 As shown, in some alternative embodiments, the isolation structure 200 includes a plurality of sublayers, at least one of which includes a metallic material.

[0082] In these alternative embodiments, at least one of the multiple sublayers includes a metallic material so that the detection isolation structure 222 in the isolation structure 200 can be electrically connected to the detection signal line 122, and so that the marking isolation structure 221 in the isolation structure 200 can be identified and grasped by the identification device.

[0083] Optional, such as Figure 2 and Figure 4 As shown, the first isolation portion 210 encloses to form a first isolation opening 213. 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 100. The orthographic projection of the first sub-layer 201 on the substrate 100 is within the orthographic projection of the second sub-layer 202 on the substrate 100. The first sub-layer 201 and the second sub-layer 202 are disposed to form the isolation structure 200. The orthographic projection of the first sub-layer 201 disposed near the substrate 100 on the substrate 100 is within the orthographic projection of the second sub-layer 202 on the substrate 100. The area of ​​the second sub-layer 202 is larger than the area of ​​the first sub-layer 201. The second sub-layer 202 covers the surface of the first sub-layer 201 near 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 fabricating the light-emitting layer and the electrode layer, a significant drop occurs between the materials of the light-emitting layer and the electrode layer at the edge of the isolation structure 200. This makes it difficult for the materials of the light-emitting layer and the electrode layer to connect at the edge of the isolation structure 200, leading to breakage. Eliminating the need for a precision mask reduces the development and use of precision masks, lowering manufacturing costs. When fabricating the encapsulation layer on the electrode layer material, the encapsulation layer can overlap with at least a portion of the isolation structure 200, improving the encapsulation effect. The first isolation portion 210 blocks water, oxygen, and other substances from the non-display area NA, reducing the amount of water, oxygen, and other substances entering from the non-display area NA reaching the display area AA of the display panel, thereby improving the quality of the display panel.

[0084] like Figure 2 and Figure 4 As shown, in some optional embodiments, the isolation structure 200 further includes a third sublayer 203 disposed on the side of the first sublayer 201 facing the substrate 100.

[0085] In these alternative embodiments, when the first sublayer 201 is side-etched, the third sublayer 203 can provide protection to the film layer on the substrate 100 side.

[0086] Optional, such as Figure 2 and Figure 4 As shown, the orthographic projection of the first sublayer 201 on the substrate 100 is located within the orthographic projection of the third sublayer 203 on the substrate 100, thereby enhancing the protective effect of the third sublayer 203 on the film layer on the substrate 100 side.

[0087] like Figures 1 to 4 As shown, in some optional embodiments, the first isolation portion 210 encloses to form a clearance opening 211, and the functional isolation structure 220 is located within the clearance opening 211.

[0088] In these alternative embodiments, the functional isolation structure 220 is located within the clearance opening 211, reducing the impact of the first isolation portion 210 on the functional isolation structure 220.

[0089] Optional, such as Figure 5 As shown, the isolation structure 200 also includes a second isolation portion 230 located in the display area AA. The second isolation portion 230 encloses and forms a second isolation opening 231. The second isolation opening 231 is used to accommodate the light-emitting unit 520. When the light-emitting layer is prepared, the material of the light-emitting layer has a large drop at the edge of the isolation structure 200. The material of the light-emitting layer is difficult to connect at the edge of the isolation structure 200, thus causing breakage to form the light-emitting unit 520 in each of the second isolation openings 231.

[0090] Optionally, the minimum distance between the marker isolation structure 221 and the second isolation part 230 is greater than or equal to 5 micrometers, thereby reducing the interference of the second isolation part 230 on the marker isolation structure 221.

[0091] Optional, such as Figure 2 As shown, the first isolation portion 210 encloses to form a first isolation opening 213. 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 231 to form the light-emitting unit 520.

[0092] Optional, such as Figure 1 As shown, the opening area of ​​the clearance opening 211 is larger than the opening area of ​​the first isolation opening 213 and / or the opening area of ​​the second isolation opening 231, while the opening areas of the first isolation opening 213 and the second isolation opening 231 are smaller. This increases the number of second isolation openings 231 in the display area AA, increases the number of light-emitting units 520, and improves the resolution. It also increases the number of first isolation openings 213 in the non-display area NA, improving the packaging performance of the non-display area NA. The larger opening area of ​​the clearance opening 211 increases the arrangement area of ​​the functional isolation structure 220, improving the usability of the functional isolation structure 220.

[0093] like Figure 5 As shown, in some optional embodiments, the display panel further includes a pixel definition layer, which includes a pixel limiting portion 400. An isolation structure 200 is disposed on the side of the pixel limiting portion 400 away from the substrate 100. The pixel limiting portion 400 surrounds and forms a pixel opening 410 located in the display area AA. The pixel opening 410 is connected to the second isolation opening 231.

[0094] In these optional embodiments, the pixel defining portion 400 of the pixel definition layer encloses a pixel opening 410 to accommodate the light-emitting unit 520, enabling the light-emitting unit 520 to emit light normally. Furthermore, the pixel defining portion 400 defines the placement area of ​​each light-emitting unit 520, reducing color crosstalk between the light-emitting units 520. The pixel opening 410 is connected to the second isolation opening 231, thereby reducing the influence of the second isolation portion 230 on the light emission of the light-emitting unit 520.

[0095] Optional, such as Figure 2 and Figure 5 As shown, the display panel also includes a light-emitting layer, which includes light-emitting units 520 located in the pixel opening 410. Material of the light-emitting layer falls into the second isolation opening 231 and the pixel opening 410 to form the light-emitting units 520.

[0096] Optionally, the light-emitting layer also includes a light-emitting material 510 located in the first isolation opening 213. The material of the light-emitting layer falls into the first isolation opening 213 to form the light-emitting material 510.

[0097] like Figure 2 As shown, in some optional embodiments, the display panel further includes an encapsulation layer, which includes a first encapsulation portion 610 located in a first isolation opening 213, the first encapsulation portion 610 extending from the first isolation opening 213 to the side of the first isolation portion 210 opposite to the substrate 100.

[0098] In these optional embodiments, the first encapsulation portion 610 overlaps with the first isolation portion 210 for encapsulating the non-display area NA. Optionally, the first encapsulation portion 610 is located on the side of the light-emitting material 510 away from the substrate 100. The first encapsulation portion 610 extends from the first isolation opening 213 to the side of the first isolation portion 210 away from the substrate 100, thereby improving the encapsulation effect of the first encapsulation portion 610.

[0099] Optional, such as Figure 2 As shown, two adjacent first packaging sections 610 are spaced apart to achieve independent packaging, thereby reducing the diffusion effect of water, oxygen, etc. between each first packaging section 610 and improving the packaging capability.

[0100] like Figure 5 As shown, in some optional embodiments, the encapsulation layer further includes a second encapsulation portion 620 located in the second isolation opening 231. The second encapsulation portion 620 is located on the side of the light-emitting unit 520 away from the substrate 100, and the second encapsulation portion 620 extends from the second isolation opening 231 to the side of the second isolation portion 230 away from the substrate 100.

[0101] In these optional embodiments, the second encapsulation portion 620 can reduce the damage caused by water, oxygen, etc. entering the light-emitting unit 520, thereby improving the reliability of the light-emitting unit 520. The second encapsulation portion 620 extends from the second isolation opening 231 to the side of the second isolation portion 230 away from the substrate 100, increasing the distribution area of ​​the encapsulation portion and improving the encapsulation effect.

[0102] Optional, such as Figure 5 As shown, two adjacent second packaging sections 620 are spaced apart to achieve independent packaging, reduce the diffusion effect of water, oxygen, etc. between each second packaging section 620, and improve the packaging capability.

[0103] Optional, such as Figure 5 As shown, the display panel includes a first electrode 701 layer, which includes a first electrode 701 located on the side of the light-emitting unit 520 facing the substrate 100. The first electrode 701 is exposed through the pixel opening 410 and serves as the anode or cathode of the light-emitting unit 520.

[0104] Optional, such as Figure 2 As shown, the display panel includes a second electrode 702 layer, which includes a second electrode material 703 located in a first isolation opening 213. The second electrode material 703 is located between the first encapsulation 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. The first encapsulation portion 610 is formed on the second electrode material 703.

[0105] Optional, such as Figure 5 As shown, the second electrode 702 layer also includes a second electrode 702 located on the side of the light-emitting unit 520 away from the substrate 100. One of the first electrode 701 and the second electrode 702 serves as the anode of the light-emitting unit 520, and the other serves as the cathode of the light-emitting unit 520.

[0106] The second aspect of this application also provides a display device, including the display panel of any of the first aspect embodiments described above. Since the display device provided in the second aspect of this application includes the display panel of any of the first aspect embodiments described above, it has the beneficial effects of the display panel of any of the first aspect embodiments described above, which will not be elaborated further here.

[0107] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0108] Thirdly, such as Figures 1 to 7 As shown, this application proposes a display motherboard, including a plurality of panel areas 11 and non-panel areas 12 arranged around each panel area 11; the display motherboard further includes: a support plate 10 and an isolation structure 200, the isolation structure 200 is disposed on one side of the support plate 10, the isolation structure 200 includes a first isolation part 210 and a functional isolation structure 220, the first isolation part 210 is located in the panel area 11 and / or the non-panel area 12, the functional isolation structure 220 is located in the panel area 11 and / or the non-panel area 12, the first isolation part 210 and the functional isolation structure 220 are arranged at intervals, wherein the functional isolation structure 220 is reused as at least one of a detection unit and a marking unit.

[0109] 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 encapsulation effect of the panel area 11 and the non-panel area 12. When the light-emitting layer and the electrode layer are prepared, the materials of the light-emitting layer and the electrode layer have a large drop at the edge of the isolation structure 200. The materials of the light-emitting layer and the electrode layer are difficult to connect at the edge of the isolation structure 200, resulting in breakage. When the encapsulation layer is prepared 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., reducing the amount of water, oxygen, etc. reaching the display area AA of the display panel, thereby improving the display quality of the display panel. The isolation structure 200 includes a functional isolation structure 220 located in the panel area 11 and / or the non-panel area 12. The functional isolation structure 220 is reused as at least one of a detection unit and a marking unit. The first isolation part 210 and the functional isolation structure 220 are spaced apart, thereby reducing the interference of the first isolation part 210 on the functional isolation structure 220 and improving the process performance of the display panel.

[0110] Optionally, the first isolation section 210 and the functional isolation structure 220 are located in the non-panel area 12. The first isolation section 210 blocks water, oxygen, etc., reducing the diffusion of water, oxygen, etc. from the non-panel area 12 to the display area AA of the display panel, thereby improving the display quality of the display panel. The functional isolation structure 220 located in the non-panel area 12 can reduce the occupation of the panel area 11 and improve the performance of the panel area 11.

[0111] In some optional embodiments, the technical features such as the encapsulation part and the isolation structure 200 are configured as described above, and will not be repeated here.

[0112] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This 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 also includes: substrate; An isolation structure is disposed on one side of the substrate. The isolation structure includes a first isolation portion located in the non-display area and a functional isolation structure, wherein the first isolation portion and the functional isolation structure are disposed at intervals. The functional isolation structure is reused as at least one of a detection unit and a marking unit.

2. The display panel according to claim 1, characterized in that, The functional isolation structure includes a marker isolation structure, which is reused as the marker unit; Preferably, the minimum distance between the marking isolation structure and the first isolation part is 5 micrometers to 20 micrometers; Preferably, the orthographic projection of the marking isolation structure on the substrate is rectangular; or, the marking isolation structure includes a first segment and a second segment connected to each other, the first segment extending along a first direction and the second segment extending along a second direction. Preferably, along the thickness direction perpendicular to the display panel, the minimum distance between the first isolation portion and the outer wall of the first segment facing the first isolation portion along the first direction and / or the second direction is the first distance, and the minimum distance between the first isolation portion and the outer wall of the second segment facing the first isolation portion along the first direction and / or the second direction is the second distance, and the first distance is equal to the second distance.

3. The display panel according to claim 2, characterized in that, The substrate includes a substrate and a driving circuit layer disposed between the isolation structure and the substrate. The driving circuit layer includes metal traces, and the orthographic projection of the metal traces on the substrate is spaced apart from the orthographic projection of the marking isolation structure on the substrate. Preferably, the first isolation portion encloses and forms a clearance opening, the marking isolation structure is located within the clearance opening, and the orthographic projection of the metal trace on the substrate is located outside the orthographic projection of the clearance opening on the substrate.

4. The display panel according to claim 1, characterized in that, The functional isolation structure includes a detection isolation structure, which is reused as the detection unit. The substrate includes a substrate and a driving circuit layer disposed between the isolation structure and the substrate. The driving circuit layer includes a detection signal line, which is electrically connected to the detection isolation structure. Preferably, the driving circuit layer further includes an insulating layer disposed between the detection signal line and the detection isolation structure, the insulating layer having a first via, and the detection signal line passing through the first via to the detection isolation structure; Preferably, a pixel definition layer is provided between the insulating layer and the detection isolation structure. The pixel definition layer includes a pixel defining portion. The detection isolation structure is disposed on the side of the pixel defining portion away from the substrate. The pixel defining portion is provided with a second via. The first via is connected to the second via. The detection signal line is connected to the detection isolation structure through the first via and the second via.

5. The display panel according to claim 1, characterized in that, The isolation structure includes multiple sub-layers, and at least one of the multiple sub-layers includes a metallic material; Preferably, the first isolation portion encloses to form a first isolation opening, and the isolation structure includes a first sub-layer and a second sub-layer, the second sub-layer being located on the side of the first sub-layer facing away from the substrate, and the orthographic projection of the first sub-layer on the substrate being located within the orthographic projection of the second sub-layer on the substrate.

6. The display panel according to claim 5, characterized in that, The isolation structure further includes a third sub-layer, which is disposed on the side of the first sub-layer facing the substrate; Preferably, the orthographic projection of the first sublayer on the substrate lies within the orthographic projection of the third sublayer on the substrate.

7. The display panel according to claim 1, characterized in that, The first isolation portion encloses and forms a clearance opening and a first isolation opening, and the functional isolation structure is located within the clearance opening; Preferably, the isolation structure further includes a second isolation portion located in the display area, the second isolation portion forming a second isolation opening, the second isolation opening being used to accommodate the light-emitting unit; Preferably, the functional isolation structure includes a marker isolation structure, the marker isolation structure is reused as the marker unit, and the minimum distance between the marker isolation structure and the second isolation part is greater than or equal to 5 micrometers; Preferably, the opening area of ​​the clearance opening is greater than the opening area of ​​the first isolation opening and / or the opening area of ​​the second isolation opening.

8. The display panel according to claim 7, characterized in that, The display panel further includes a pixel definition layer, the pixel definition layer includes a pixel limiting portion, the isolation structure is disposed on the side of the pixel limiting portion away from the substrate, the pixel limiting portion surrounds to form a pixel opening located in the display area, and the pixel opening is connected to the second isolation opening; Preferably, the display panel further includes a light-emitting layer, which includes light-emitting units located in the pixel openings.

9. The display panel according to claim 8, characterized in that, The display panel further includes an encapsulation layer, the encapsulation layer including a first encapsulation portion located in the first isolation opening, the first encapsulation portion extending from the first isolation opening to the side of the first isolation portion away from the substrate; Preferably, the light-emitting layer further includes a light-emitting material located in the first isolation opening, and the first encapsulation portion is located on the side of the light-emitting material facing away from the substrate; Preferably, the luminescent material is at least partially the same as the material of the luminescent unit; Preferably, two adjacent first packaging portions are spaced apart.

10. The display panel according to claim 8, characterized in that, The display panel further includes an encapsulation layer, the encapsulation layer including a second encapsulation portion located in the second isolation opening, the second encapsulation portion being located on the side of the light-emitting unit away from the substrate, and the second encapsulation portion extending from the second isolation opening to the side of the second isolation portion away from the substrate; Preferably, two adjacent second packaging portions are spaced apart.

11. The display panel according to claim 8, characterized in that, The display panel includes a first electrode layer, which includes a first electrode located on the side of the light-emitting unit facing the substrate, and the first electrode is exposed through the pixel opening.

12. The display panel according to claim 9, characterized in that, The display panel includes a second electrode layer, the second electrode layer includes a second electrode material located in the first isolation opening, and the second electrode material is located between the first encapsulation portion and the light-emitting material; Preferably, the second electrode layer further includes a second electrode located on the side of the light-emitting unit opposite to the substrate.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1-12.

14. A display motherboard, characterized in that, The display motherboard includes multiple panel areas and non-panel areas surrounding each of the panel areas; the motherboard also includes: Support plate; An isolation structure is disposed on one side of the support plate. The isolation structure includes a first isolation part and a functional isolation structure. The first isolation part is located in the panel area and / or the non-panel area, and the functional isolation structure is located in the panel area and / or the non-panel area. The first isolation part and the functional isolation structure are disposed at intervals. The functional isolation structure is reused as at least one of a detection unit and a marking unit.

15. The display motherboard according to claim 14, characterized in that, The first isolation section and the functional isolation structure are located in the non-panel area, and the functional isolation structure includes a marker isolation structure, which is reused as the marker unit. Preferably, the minimum distance between the marking isolation structure and the first isolation part is 5 micrometers to 20 micrometers; Preferably, the orthographic projection of the marking isolation structure on the support plate is rectangular; or, the marking isolation structure includes a first segment and a second segment connected to each other, the first segment extending along a first direction and the second segment extending along a second direction. Preferably, along the thickness direction perpendicular to the display motherboard, the minimum distance between the first isolation portion and the outer wall of the first segment facing the first isolation portion along the first direction and / or the second direction is the first distance, and the minimum distance between the first isolation portion and the outer wall of the second segment facing the first isolation portion along the first direction and / or the second direction is the second distance, and the first distance is equal to the second distance.

16. The display motherboard according to claim 15, characterized in that, A metal trace is provided between the support plate and the isolation structure, and the orthographic projection of the metal trace on the support plate and the orthographic projection of the marking isolation structure on the support plate are spaced apart. Preferably, the first isolation portion encloses and forms a clearance opening, the marking isolation structure is located within the clearance opening, and the orthographic projection of the metal trace on the support plate is located outside the orthographic projection of the clearance opening on the support plate.

17. The display motherboard according to claim 14, characterized in that, The first isolation section and the functional isolation structure are located in the non-panel area, and the functional isolation structure includes a detection isolation structure, which is reused as the detection unit. The display motherboard further includes a driving circuit layer disposed between the support plate and the isolation structure, the driving circuit layer including a detection signal line, the detection signal line being electrically connected to the detection isolation structure; Preferably, the driving circuit layer further includes an insulating layer disposed between the detection signal line and the detection isolation structure, the insulating layer having a first via, and the detection signal line passing through the first via to the detection isolation structure; Preferably, a pixel definition layer is provided between the insulating layer and the detection isolation structure. The pixel definition layer includes a pixel defining portion. The detection isolation structure is disposed on the side of the pixel defining portion away from the support plate. The pixel defining portion is provided with a second via. The first via is connected to the second via. The detection signal line is connected to the detection isolation structure through the first via and the second via.

18. The display motherboard according to claim 14, characterized in that, The isolation structure includes multiple sub-layers, and at least one of the multiple sub-layers includes a metallic material; Preferably, the first isolation portion is located in the non-panel area and encloses to form a first isolation opening. The isolation structure includes a first sub-layer and a second sub-layer. The second sub-layer is located on the side of the first sub-layer away from the support plate. The orthographic projection of the first sub-layer on the support plate is located within the orthographic projection of the second sub-layer on the support plate.

19. The display motherboard according to claim 18, characterized in that, The isolation structure further includes a third sub-layer, which is disposed on the side of the first sub-layer facing the support plate; Preferably, the orthographic projection of the first sub-layer on the support plate is located within the orthographic projection of the third sub-layer on the support plate.

20. The display motherboard according to claim 18, characterized in that, The display motherboard further includes an encapsulation layer, the encapsulation layer including a first encapsulation portion located in the first isolation opening, the first encapsulation portion extending from the first isolation opening to the side of the first isolation portion away from the support plate; Preferably, two adjacent first packaging portions are spaced apart.

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