Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate; the first electrode layer is arranged on the substrate; the pixel definition layer is arranged on the substrate, and the pixel definition layer comprises a pixel definition part and a pixel opening; at least part of the light-emitting unit is located in the pixel opening, and the light-emitting unit comprises a first light-emitting layer, a charge generation layer and a second light-emitting layer which are stacked in the direction away from the substrate; the light filtering layer is arranged on the side, away from the substrate, of the light emitting unit and the pixel defining layer, and the light filtering layer comprises a light shielding part and a light filtering unit; wherein the surface, deviating from the substrate, of the pixel definition layer is provided with a groove, the groove is arranged towards the substrate in a sunken mode, and the groove is arranged around at least part of one pixel opening. The display effect of the display panel can be improved, and then the use performance of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a display panel and a display device. 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, and desktop computers due to their advantages such as high image quality, power saving, thin body, and wide range of applications, becoming the mainstream display device.

[0003] However, the performance of current OLED display products needs to be improved. Summary of the Invention

[0004] Embodiments of the present application provide a display panel and a display device, aiming to improve the performance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate; a first electrode layer disposed on the substrate, the first electrode layer comprising a plurality of first electrodes distributed in an array; a pixel definition layer disposed on the substrate, the pixel definition layer comprising a pixel defining portion and a pixel opening formed by the pixel defining portion, wherein the orthographic projection of each pixel opening on the substrate and the orthographic projection of each first electrode on the substrate at least partially overlap; a light-emitting unit, at least a portion of which is located at the pixel opening, the light-emitting unit comprising a first light-emitting layer, a charge generation layer, and a second light-emitting layer stacked in a direction away from the substrate; a filter layer disposed on a side of the light-emitting unit and the pixel definition layer facing away from the substrate, the filter layer comprising a light-shielding portion and a filter unit, the light-shielding portion surrounding a filter opening, the orthographic projection of each filter opening on the substrate and the orthographic projection of each pixel opening on the substrate at least partially overlap, and at least a portion of the filter unit is located at the filter opening; wherein a groove is provided on a surface of the pixel definition layer facing away from the substrate, the groove is recessed toward the substrate, and the groove surrounds at least a portion of one of the pixel openings.

[0006] According to an embodiment of the first aspect of the present application, the charge generation layer includes a main body portion and a hollow portion passing through the main body portion, and the orthographic projection of the hollow portion on the substrate and the orthographic projection of the groove on the substrate at least partially overlap.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the hollow portion on the substrate is located within the orthographic projection of the groove on the substrate.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel definition layer includes a first sublayer and a second sublayer stacked in a square shape away from the substrate, and the groove is provided in the second sublayer.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the groove is formed by a surface depression of the second sub-layer facing away from the substrate, or the groove is provided through the second sub-layer.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel opening includes a first sub-opening formed by the first sub-layer and a second sub-opening formed by the second sub-layer, and the orthographic projection of the first sub-opening on the substrate is located within the orthographic projection of the second sub-opening on the substrate.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the second sub-opening on the substrate is located within the orthographic projection of the filter opening on the substrate.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the filter opening on the substrate is located within the orthographic projection of the first electrode on the substrate.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the groove is arranged so that the orthographic projection of the groove on the substrate surrounds at least a portion of the orthographic projection of the first electrode on the substrate.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the absorbance of the first sub-layer is greater than the absorbance of the second sub-layer.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel definition layer is a single-layer structure, and the depth H1 of the groove and the thickness H2 of the pixel definition layer satisfy: H1≤3 / 4H2.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the filter opening on the substrate.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the filter opening on the substrate is located within the orthographic projection of the first electrode on the substrate.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the groove on the substrate is located within the orthographic projection of the light-shielding portion on the substrate.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the groove is arranged in a closed ring shape around the pixel opening; or, the groove includes a plurality of sub-segments spaced apart around the periphery of the pixel opening.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the groove includes a plurality of sub-segments spaced apart around the periphery of the pixel opening, and the plurality of sub-segments are symmetrically arranged on the orthographic projection of the substrate about the center of the orthographic projection of the pixel opening on the substrate.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the groove includes a plurality of sub-segments spaced apart around the periphery of the pixel opening, and two adjacent sub-segments are spaced apart around the periphery of the pixel opening to form a clearance space;

[0022] The first electrode includes an electrode block and a connecting block connected to the electrode block. The connecting block is formed by extending from at least one of the clearance spaces in a direction away from the first electrode.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of at least one of the first electrode, the pixel opening and the filter opening on the substrate is circular.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the first electrode on the substrate is circular.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the filter opening on the substrate is circular.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the pixel opening on the substrate is circular.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the groove is provided on the peripheral side of each pixel opening.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, two or more grooves are arranged side by side between two adjacent pixel openings.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the thickness of the pixel definition layer is 0.7 μm to 0.9 μm;

[0030] And / or, the display panel further comprises an encapsulation layer located on a side of the light-emitting unit facing away from the substrate, the encapsulation layer comprising a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked in a direction away from the substrate, the second encapsulation layer comprising an organic material, and having a thickness of 10 μm to 15 μm;

[0031] And / or, the display panel also includes an encapsulation layer and a touch function layer, the encapsulation layer is located on the side of the light-emitting unit away from the substrate, the touch function layer is located on the side of the encapsulation layer away from the substrate, the touch function layer includes a touch conductive layer, and the shading portion and the touch conductive layer are in contact and connected.

[0032] An embodiment of the second aspect of the present application further provides a display device, comprising a display panel according to any one of the above-mentioned embodiments of the first aspect.

[0033] In the display panel provided in the embodiment of the present application, the display panel includes a substrate and a first electrode layer, a display definition layer, a light-emitting unit and a filter unit arranged on the substrate. The pixel definition layer includes a pixel defining portion and a pixel opening, and the orthographic projection of each pixel opening on the substrate and the orthographic projection of each first electrode on the substrate at least partially overlap, so that at least part of the first electrode can be exposed by the pixel opening. At least part of the light-emitting unit is located in the pixel opening, so that the light-emitting unit can be in contact and connected with the first electrode exposed by the pixel opening, and the first electrode can drive the light-emitting unit to emit light. The light-emitting unit includes a first light-emitting layer, a charge generation layer and a second light-emitting layer. The charge generation layer can generate holes and electrons, thereby enabling both the first light-emitting layer and the second light-emitting layer to emit light, thereby improving the light-emitting efficiency and display effect of the display panel. The filter layer includes a light-shielding portion and a filter unit. The filter unit and the pixel opening are correspondingly arranged so that the light emitted by the light-emitting unit in the pixel opening can be emitted through the filter unit, further improving the light-emitting effect. In addition, a groove is provided on the pixel definition layer, and part of the charge generation layer can cover the groove. When holes or electrons are generated in the charge generation layer and the holes or electrons move between two adjacent pixel openings in the charge generation layer, due to the setting of the groove, the movement distance of the holes or electrons can be increased, thereby reducing the crosstalk of light emitted by the light-emitting units in the two adjacent pixel openings, and improving the display effect of the display panel. Therefore, the present application can improve the display effect of the display panel and thereby improve the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Other features, objects and advantages of the present application will become more apparent from 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.

[0035] Figure 1 is a structural diagram of a display panel provided in an embodiment of the present application;

[0036] Figure 2 yes Figure 1 A schematic diagram of a local enlarged structure at P in an example;

[0037] Figure 3 yes Figure 2Partial cross-sectional view at AA in the middle;

[0038] Figure 4 yes Figure 3 Schematic diagram of a local enlarged structure;

[0039] Figure 5 yes Figure 1 A schematic diagram of a local enlarged structure at P in another example;

[0040] Figure 6 yes Figure 1 A schematic diagram of a local enlarged structure at P in another example;

[0041] Figure 7 In another example Figure 2 Partial cross-sectional view at AA in the middle;

[0042] Figure 8 yes Figure 1 A schematic diagram of the locally enlarged structure at P in another example.

[0043] Description of reference numerals:

[0044] 100. Substrate;

[0045] 200, first electrode layer; 210, first electrode; 211, electrode block; 212, connection block;

[0046] 300, pixel definition layer; 300a, first sublayer; 300b, second sublayer; 310, pixel defining portion; 320, pixel opening; 320a, first sub-opening; 320b, second sub-opening; 321, first pixel opening; 322, second pixel opening; 323, third pixel opening; 330, light-emitting unit; 301, first light-emitting layer; 302, charge generation layer; 3021, main body; 3022, hollow portion; 303, second light-emitting layer; 331, first light-emitting unit; 332, second light-emitting unit; 333, third light-emitting unit; 340, groove; 341, subsegment; 342, clearance space;

[0047] 400, second electrode layer; 410, second electrode;

[0048] 500, encapsulation layer; 510, first encapsulation layer; 520, second encapsulation layer; 530, third encapsulation layer;

[0049] 600, filter layer; 610, light shielding portion; 620, light shielding unit; 621, first filter unit; 622, second filter unit; 623, third filter unit; 630, filter opening; 631, first filter opening; 632, second filter opening; 633, third filter opening;

[0050] 700, touch function layer; 710, touch substrate layer; 720, first touch layer; 721, bridge electrode; 730, second touch layer; 731, first touch electrode; 732, second touch electrode; 740, touch optical adhesive layer;

[0051] X, first direction; Y, second direction; Z, thickness direction. DETAILED DESCRIPTION

[0052] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many 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 can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present application; and, for clarity, the sizes 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 this application, it should be noted that, unless otherwise specified, "plurality" means more than two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are merely for the purpose of facilitating the description of this application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

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

[0055] In order to better understand this application, Figures 1 to 8 The display panel and the display device according to the embodiments of the present application are described in detail.

[0056] Please also refer to Figures 1 to 4 , Figure 1 This is a schematic structural diagram of a display panel 10 provided in an embodiment of the present application. Figure 2 yes Figure 1 In one example, a schematic diagram of a partially enlarged structure at P is shown. Figure 3 yes Figure 2 Cross-sectional view at AA in the middle.

[0057] like Figures 1 to 3 As shown, an embodiment of the first aspect of the present application provides a display panel, which includes: a substrate 100; a first electrode layer 200, which is arranged on the substrate 100, and the first electrode layer 200 includes a plurality of first electrodes 210 distributed in an array; a pixel definition layer 300, which is arranged on the substrate 100, and the pixel definition layer 300 includes a pixel defining portion 310 and a pixel opening 320 formed by the pixel defining portion 310, and the orthographic projection of each pixel opening 320 on the substrate 100 and the orthographic projection of each first electrode 210 on the substrate 100 at least partially overlap; a light-emitting unit 330, at least a portion of the light-emitting unit 330 is located in the pixel opening 320, and the light-emitting unit 330 includes a first light-emitting unit stacked in a direction away from the substrate 100. Layer 301, charge generation layer 302 and second light-emitting layer 303; filter layer 600, arranged on the side of the light-emitting unit 330 and the pixel definition layer 300 facing away from the substrate 100, the filter layer 600 includes a light-shielding portion 610 and a filter unit, the light-shielding portion 610 encloses a filter opening 630, the orthographic projection of each filter opening 630 on the substrate 100 and the orthographic projection of each pixel opening 320 on the substrate 100 at least partially overlap, and at least a portion of the filter unit is located in the filter opening 630; wherein, a groove 340 is provided on the surface of the pixel definition layer 300 facing away from the substrate 100, the groove 340 is recessed toward the substrate 100, and the groove 340 surrounds at least a portion of a pixel opening 320.

[0058] In the display panel provided in the embodiments of the present application, the display panel includes a substrate 100, a first electrode layer 200 disposed on the substrate 100, a display definition layer, a light-emitting unit 330, and a filter unit. The first electrode layer 200 includes a plurality of first electrodes 210 arranged in an array. The plurality of first electrodes 210 are spaced apart. By transmitting control signals to different first electrodes 210, the individual sub-pixels of the display panel can be independently controlled.

[0059] The pixel definition layer 300 includes pixel defining portions 310 and pixel openings 320. The orthographic projections of the pixel openings 320 on the substrate 100 and the orthographic projections of the first electrodes 210 on the substrate 100 at least partially overlap, allowing at least a portion of the first electrodes 210 to be exposed through the pixel openings 320. The pixel defining portions 310 can provide positioning for at least a portion of the light-emitting units 330 and alleviate the problem of light interference between the light-emitting units 330 in two adjacent pixel openings 320.

[0060] At least a portion of the light-emitting unit 330 is located within the pixel opening 320, allowing the light-emitting unit 330 to contact and connect with the first electrode 210 exposed by the pixel opening 320. The first electrode 210 can drive the light-emitting unit 330 to emit light. The light-emitting unit 330 includes a first light-emitting layer 301, a charge generation layer 302, and a second light-emitting layer 303. The charge generation layer 302 can generate holes and electrons, thereby enabling both the first light-emitting layer 301 and the second light-emitting layer 303 to emit light, thereby improving the luminous efficiency and display effect of the display panel. In other words, by selecting two light-emitting layers to be stacked, the embodiment of the present application can effectively improve the light extraction effect of the display panel.

[0061] The filter layer 600 includes a light shielding portion 610 and a filter unit. The filter unit and the pixel opening 320 are correspondingly arranged so that the light emitted by the light emitting unit 330 in the pixel opening 320 can be emitted through the filter unit, further improving the light extraction effect.

[0062] In addition, a groove 340 is provided on the pixel definition layer 300, and a portion of the charge generation layer 302 can cover the groove 340. When holes or electrons are generated in the charge generation layer 302 and the holes or electrons move between two adjacent pixel openings 320 in the charge generation layer 302, due to the setting of the groove 340, the moving distance of the holes or electrons between the two adjacent pixel openings 320 can be increased, thereby reducing the crosstalk of the light emitting units 330 in the two adjacent pixel openings 320, and improving the display effect of the display panel. Therefore, the present application can improve the display effect of the display panel, and thereby improve the performance of the display panel.

[0063] There are many ways to set up the substrate 100. The substrate 100 may include a substrate and a first conductive layer, a second conductive layer, and a third conductive layer arranged on one side of the substrate and stacked. An insulating layer is provided between adjacent conductive layers. Optionally, a driver device layer is provided on the substrate, and a pixel driver circuit is provided in the driver device layer. The pixel driver circuit includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source and a drain. The storage capacitor includes a first plate and a second plate. As an example, the gate and the first plate can be located in the first conductive layer, the second plate can be located in the second conductive layer, and the source and drain can be located in the third conductive layer.

[0064] Optionally, the display panel further includes a second electrode layer 400, which includes a second electrode 410 located on the side of the light-emitting unit 330 facing away from the substrate 100, and each second electrode 410 can be interconnected to form a surface electrode. The interaction between the first electrode 210 and the second electrode 410 can drive at least part of the light-emitting unit 330 located in the pixel opening 320 to emit light. One of the first electrode 210 and the second electrode 410 is an anode and the other is a cathode. The embodiment of the present application is illustrated by taking the first electrode 210 as the anode and the second electrode 410 as the cathode. The first electrode 210 is an anode. During the process of light emission from the light-emitting unit 330, the first electrode 210 can provide holes for the first light-emitting layer 301, the charge generation layer 302 can provide electrons for the first light-emitting layer 301, and provide holes for the second light-emitting layer 303, and the second electrode 410 can provide electrons for the second light-emitting layer 303. Optionally, the first electrode 210 is a reflective electrode and the second electrode 410 is a transparent electrode.

[0065] Optional, such as Figure 4 As shown, at least one of a first hole injection layer, a first hole transport layer, and a first electron blocking layer may be provided between the first electrode 210 and the first light-emitting layer 301. Optionally, at least one of a first hole blocking layer, a first electron transport layer, and a first electron injection layer may be provided between the first light-emitting layer 301 and the charge generation layer 302. Optionally, at least one of a second hole injection layer, a second hole transport layer, and a second electron blocking layer may be provided between the charge generation layer 302 and the second light-emitting layer 303. Optionally, at least one of a second hole blocking layer, a second electron transport layer, and a second electron injection layer may be provided between the second light-emitting layer 303 and the second electrode layer 400.

[0066] Optionally, the display panel further includes an encapsulation layer 500, which is disposed on a side of the second electrode layer 400 facing away from the substrate 100. The encapsulation layer 500 is used to encapsulate the light-emitting unit 330 and improve the yield of the light-emitting unit 330 due to water and oxygen intrusion. Optionally, the encapsulation layer 500 includes a first encapsulation layer 510, a second encapsulation layer 520, and a third encapsulation layer 530, which are sequentially disposed in a direction away from the substrate 100. The materials of the first encapsulation layer 510 and the third encapsulation layer 530 may include inorganic materials, and the material of the second encapsulation layer 520 includes organic materials. The first encapsulation layer 510 and the third encapsulation layer 530 can provide relatively airtight protection, and the second encapsulation layer 520 can adjust the flatness of the surface of the encapsulation layer 500 facing away from the substrate 100.

[0067] Optionally, the display panel further includes a touch function layer 700, which is disposed on the side of the encapsulation layer 500 facing away from the substrate 100. Optionally, the touch function layer 700 includes a touch electrode layer and a touch optical adhesive layer 740. The touch optical adhesive layer 740 is disposed on the side of the touch electrode layer facing away from the substrate 100, and the filter layer 600 can be disposed on the side of the touch optical adhesive layer 740 facing away from the substrate 100. The touch electrode layer can include a first touch layer 720 and a second touch layer 730. The first touch layer 720 can be provided with a bridge portion, and the second touch layer 730 can be provided with first touch electrodes 731 and second touch electrodes 732. Adjacent first touch electrodes 731 in the second touch layer 730 can be electrically connected to each other, and adjacent second touch electrodes 732 can be electrically connected to each other via the bridge portion. Optionally, an insulating layer can be disposed between the first touch layer 720 and the second touch layer 730. Optionally, a touch substrate layer 710 may be further provided on the side of the first touch layer 720 facing the substrate 100 , that is, the touch substrate layer 710 is provided between the encapsulation layer 500 and the first touch layer 720 .

[0068] Optionally, there are multiple pixel openings 320, and the multiple pixel openings 320 can be arranged in an array along the first direction X and the second direction Y. Optionally, a groove 340 is provided around at least one pixel opening 320, and the groove 340 is provided around at least a portion of the pixel opening 320. Alternatively, a groove 340 is provided around each pixel opening 320.

[0069] Optionally, the charge generation layer 302 is a common layer, that is, the charge generation layers 302 of a plurality of light-emitting units 330 may be connected to each other.

[0070] In some optional embodiments, such as Figure 2 and Figure 3 As shown, the charge generation layer 302 includes a main body portion 3021 and a hollow portion 3022 passing through the main body portion 3021 , and the orthographic projection of the hollow portion 3022 on the substrate 100 and the orthographic projection of the groove 340 on the substrate 100 at least partially overlap.

[0071] In these optional embodiments, due to the presence of the groove 340, during the preparation process of the charge generation layer 302, the film material used to prepare the charge generation layer 302 may break near the groove 340, thereby forming a hollow portion 3022 located on the charge generation layer 302. Due to the presence of the hollow portion 3022, the charge generation layer 302 is discontinuous at the location of the hollow portion 3022, and holes or electrons cannot move in the area where the hollow portion 3022 is located, which can further reduce the problem of crosstalk between holes and electrons between adjacent light-emitting units 330, thereby better improving the display effect of the display panel.

[0072] Optionally, the orthographic projection of the hollow portion 3022 on the substrate 100 is located within the orthographic projection of the groove 340 on the substrate 100. The hollow portion 3022 is formed due to the presence of the groove 340, so the distribution area of ​​the hollow portion 3022 is usually within the distribution area of ​​the groove 340.

[0073] The groove 340 can be shaped in a variety of ways. In some optional embodiments, the groove 340 has an opening on the side of the pixel definition layer 300 facing away from the substrate 100. The opening is smaller than the maximum cross-sectional dimension of the groove 340 on a reference plane, and the reference plane is perpendicular to the thickness direction Z of the display panel. This allows the opening of the groove 340 to be smaller, while the interior of the groove 340 is larger, forming concave sides within the groove 340. This makes it easier for the charge generation layer 302 to break at the opening edge of the groove 340 during fabrication, thereby improving crosstalk between electrons and holes.

[0074] The longitudinal section of the groove 340 may be in the shape of a semicircle, a portion of an ellipse, a polygon, etc. The longitudinal section of the groove 340 is perpendicular to the thickness direction Z.

[0075] There are many ways to dispose the pixel definition layer 300. The pixel definition layer 300 can be formed by stacking multiple film layers, or the pixel definition layer 300 can be a single-layer structure.

[0076] In some optional embodiments, such as Figure 2 and Figure 3 As shown, the pixel definition layer 300 includes a first sub-layer 300 a and a second sub-layer 300 b stacked in a square shape away from the substrate 100 , and the groove 340 is provided in the second sub-layer 300 b .

[0077] In these alternative embodiments, the pixel definition layer 300 includes two film layers, namely a first sublayer 300a and a second sublayer 300b. The second sublayer 300b is located on the side of the first sublayer 300a facing away from the substrate 100, and the groove 340 is provided in the second sublayer 300b. By providing the pixel definition layer 300 with two film layers, with the groove 340 provided on the film layer facing away from the substrate 100, it is possible to reduce the risk of the groove 340 accidentally penetrating the pixel definition layer 300 during the manufacturing process, thereby affecting the yield of the display panel.

[0078] The groove 340 can be arranged on the second sub-layer 300b in various ways. The groove 340 can penetrate the second sub-layer 300b to increase the depth of the groove 340 and improve the isolation effect of the groove 340 on the charge generation layer 302. Alternatively, the groove 340 can be formed by a depression on the surface of the second sub-layer 300b facing away from the substrate 100, that is, the groove 340 does not penetrate the second sub-layer 300b, so as to reduce the impact of the groove 340 on the first sub-layer 300a.

[0079] In some optional embodiments, the pixel opening 320 includes a first sub-opening 320a formed by the first sub-layer 300a and a second sub-opening 320b formed by the second sub-layer 300b, and the orthographic projection of the first sub-opening 320a on the substrate 100 is located within the orthographic projection of the second sub-opening 320b on the substrate 100.

[0080] In these optional embodiments, the first sub-layer 300a and the second sub-layer 300b respectively enclose a first sub-opening 320a and a second sub-opening 320b, and the orthographic projection of the first sub-opening 320a on the substrate 100 is located within the orthographic projection of the second sub-opening 320b on the substrate 100, that is, the size of the first sub-opening 320a is smaller than or equal to the size of the second sub-opening 320b, so that the first sub-opening 320a can be completely exposed by the second sub-opening 320b, thereby improving the shielding of the first sub-opening 320a by the second sub-layer 300b.

[0081] Optionally, the orthographic projection area of ​​the first sub-opening 320 a on the substrate 100 is smaller than the orthographic projection area of ​​the second sub-opening 320 b on the substrate 100 , so as to further improve the shielding of the first sub-opening 320 a by the second sub-layer 300 b .

[0082] In some optional embodiments, the orthographic projection of the second sub-opening 320 b on the substrate 100 is located within the orthographic projection of the filter opening 630 on the substrate 100 .

[0083] In these optional embodiments, the size of the second sub-opening 320b is smaller than or equal to the size of the filter opening 630 to ensure that the light emitted from the first sub-opening 320a and the second sub-opening 320b can be emitted from the filter opening 630 as much as possible and emitted through the filter unit, thereby improving the display effect of the display panel.

[0084] Optionally, the orthographic projection area of ​​the second sub-opening 320 b on the substrate 100 is smaller than the orthographic projection area of ​​the filter opening 630 on the substrate 100 , so as to further improve the shielding of the light emitting unit 330 by the light shielding portion 610 .

[0085] In some optional embodiments, the orthographic projection of the filter opening 630 on the substrate 100 is located within the orthographic projection of the first electrode 210 on the substrate 100 .

[0086] In these optional embodiments, the size of the filter opening 630 is smaller than or equal to the size of the first electrode 210, and the size of the first electrode 210 is larger to ensure the size of the first electrode 210 exposed by the pixel opening 320 as much as possible, thereby ensuring the light-emitting area.

[0087] Optionally, the orthographic projection area of ​​the filter opening 630 on the substrate 100 is smaller than the orthographic projection area of ​​the first electrode 210 on the substrate 100 , so as to further ensure that the first electrode 210 has a sufficiently large area and the effective light emitting area.

[0088] In some optional embodiments, such as Figures 2 to 6 As shown, the groove 340 is disposed so as to surround at least a portion of the orthographic projection of the first electrode 210 on the substrate 100 .

[0089] In these optional embodiments, the groove 340 is disposed outside the first electrode 210, with its orthographic projection on the substrate 100 surrounding at least a portion of the first electrode 210. Furthermore, the size of the first electrode 210 is greater than or equal to the size of the filter opening 630, allowing the groove 340 to be disposed on the side of the light shielding portion 610 facing the substrate 100. When light is incident on the groove 340 and reflected, most of the light reflected by the groove 340 can be absorbed by the light shielding portion 610, thereby ensuring the display effect of the display panel.

[0090] Optional, such as Figure 7 As shown, there is a minimum distance L between the inner wall surface of the light shielding portion 610 facing the filter opening 630 and the inner wall surface of the pixel defining portion 310 facing the pixel opening 320, and the groove 340 is arranged as far away from L as possible. For example, the orthographic projection of the groove 340 on the substrate 100 is located within the orthographic projection of the light shielding portion 610 on the substrate 100, so that the light shielding portion 610 can cover the groove 340. When light is incident on the groove 340 and reflected, most of the light reflected by the groove 340 can be absorbed by the light shielding portion 610, thereby ensuring the display effect of the display panel.

[0091] In some optional embodiments, the absorbance of the first sub-layer 300a is greater than the absorbance of the second sub-layer 300b.

[0092] In these optional embodiments, the first sublayer 300a mainly serves to isolate adjacent light-emitting units 330 , so the first sublayer 300a has a larger light absorption rate, which can improve the problem of light interference between adjacent light-emitting units 330 .

[0093] Optionally, the material of the first sub-layer 300a may include a black light-absorbing material, such as carbon nanoparticles, etc. Optionally, the material of the second sub-layer 300b may include an organic material, such as an organic optical adhesive material, etc.

[0094] In other optional embodiments, such as Figure 7 and Figure 8As shown, the pixel definition layer 300 may be a single-layer structure, that is, the pixel definition layer 300 is a single-layer structure, and the depth H1 of the groove 340 and the thickness H2 of the pixel definition layer 300 satisfy: H1≤3 / 4H2.

[0095] In these optional embodiments, the pixel definition layer 300 is a single-layer structure, which can simplify the structure of the pixel definition layer 300, simplify the production of the display panel, and improve the production efficiency of the display panel. When the depth H1 of the groove 340 and the thickness H2 of the pixel definition layer 300 meet the above relationship, the problem of the depth H1 of the groove 340 being too deep and thus penetrating the pixel defining portion 310 can be improved.

[0096] Optionally, the depth H1 of the groove 340 and the thickness H2 of the pixel definition layer 300 satisfy the relationship: H1 ≥ 1 / 2H2. When the depth H1 of the groove 340 and the thickness H2 of the pixel definition layer 300 satisfy this relationship, the problem of the depth H1 of the groove 340 being too deep or too small, which would affect its isolation effect on the charge generation layer 302, can be alleviated.

[0097] Optionally, the depth H1 of the groove 340 refers to the maximum extension depth of the groove 340 in the thickness direction Z of the display panel. The thickness H2 of the pixel definition layer 300 refers to the maximum extension thickness of the pixel defining portion 310 in the thickness direction Z.

[0098] In some optional embodiments, the orthographic projection of the pixel opening 320 on the substrate 100 is located within the orthographic projection of the filter opening 630 on the substrate 100 .

[0099] In these optional embodiments, regardless of whether the pixel definition layer 300 is a single-layer or multi-layer structure, the size of the pixel opening 320 is less than or equal to the size of the filter opening 630, so that the outgoing light of the light-emitting unit 330 in the pixel opening 320 can be more emitted through the filter opening 630 and emitted from the filter unit, thereby improving the light emission effect of the display panel.

[0100] Optionally, the orthographic projection area of ​​the pixel opening 320 on the substrate 100 is smaller than the orthographic projection area of ​​the filter opening 630 on the substrate 100, so that the outgoing light of the light-emitting unit 330 in the pixel opening 320 can be more emitted through the filter opening 630 and out of the filter unit, thereby improving the light emission effect of the display panel.

[0101] In some optional embodiments, the orthographic projection of the filter opening 630 on the substrate 100 is located within the orthographic projection of the first electrode 210 on the substrate 100 .

[0102] In these optional embodiments, the size of the filter opening 630 is smaller than or equal to the size of the first electrode 210, and the size of the first electrode 210 is larger to ensure the size of the first electrode 210 exposed by the pixel opening 320 as much as possible, thereby ensuring the light-emitting area.

[0103] Optionally, the orthographic projection area of ​​the filter opening 630 on the substrate 100 is smaller than the orthographic projection area of ​​the first electrode 210 on the substrate 100 , so as to further ensure that the first electrode 210 has a sufficiently large area and the effective light emitting area.

[0104] Optionally, as mentioned above, the orthographic projection of the groove 340 on the substrate 100 is located within the orthographic projection of the light shielding portion 610 on the substrate 100. This allows most of the light reflected from the groove 340 to be absorbed by the light shielding portion 610, thereby improving the display effect of the display panel.

[0105] There are many ways to set the shape of the groove 340, for example, Figure 3 As shown, the groove 340 is arranged in a closed ring around the pixel opening 320. This allows the holes or electrons generated in the charge generation layer 302 to move around the pixel opening 320, thereby increasing the moving distance of different positions around the pixel opening 320, thereby better improving the problem of light interference between different pixel openings 320.

[0106] Alternatively, in other optional embodiments, such as Figure 5 and Figure 6 As shown, the groove 340 includes a plurality of sub-segments 341 spaced apart around the pixel opening 320. In these optional embodiments, the groove 340 includes a plurality of sub-segments 341 spaced apart around the pixel opening 320, and no groove 340 is provided on the pixel defining portion 310 between adjacent sub-segments 341. This can improve the situation where the second electrode 410 is completely divided by the groove 340 and cannot form a front electrode.

[0107] Optionally, when the groove 340 includes a plurality of sub-segments 341 spaced apart around the pixel opening 320, the plurality of sub-segments 341 are symmetrically arranged about the center of the orthographic projection of the pixel opening 320 on the substrate 100. This makes the light emission effect at different positions around the pixel opening 320 more uniform, thereby improving the display effect of the display panel.

[0108] Optionally, the groove 340 includes a plurality of sub-segments 341 spaced apart around the pixel opening 320, and two adjacent sub-segments 341 are spaced apart around the pixel opening 320 to form a clearance space 342; the first electrode 210 includes an electrode block 211 and a connecting block 212 connected to the electrode block 211, and the connecting block 212 is formed by extending from at least one of the clearance spaces 342 in a direction away from the first electrode 210.

[0109] In these optional embodiments, the first electrode 210 includes an electrode block 211 and a connection block 212 connected to the electrode block 211. The electrode block 211 can be arranged corresponding to the pixel opening 320 to drive the light-emitting unit 330 in the pixel opening 320 to emit light, that is, the orthographic projection of the electrode block 211 on the substrate 100 and the orthographic projection of the pixel opening 320 on the substrate 100 at least partially overlap. The connection block 212 can be electrically connected to the circuit on the substrate 100 side, for example, the connection block 212 is connected to the pixel driving circuit via on the substrate 100 side, so that the pixel driving circuit can transmit signals to the pixel block through the connection block 212.

[0110] The location of the connecting block 212 can cause an uneven surface on the pixel defining portion 310. In this embodiment of the present application, the connecting block 212 is formed by extending at least one of the clearance spaces 342 in a direction away from the first electrode 210. That is, when the clearance space 342 is formed between two adjacent sub-segments 341, the orthographic projection of the connecting block 212 on the substrate 100 extends away from the electrode block 211 via the orthographic projection of the clearance space 342 on the substrate 100. The connecting block 212 and the groove 340 are staggered, with the orthographic projection of the connecting block 212 on the substrate 100 and the orthographic projection of the groove 340 on the substrate 100 being completely offset. This allows the groove 340 to be positioned on a flatter surface of the pixel defining portion 310, thereby ensuring a high yield of the groove 340.

[0111] In any of the above embodiments, the shapes of the first electrode 210, the pixel opening 320, and the filter opening 630 are not limited. In some optional embodiments, the orthographic projection of at least one of the first electrode 210, the pixel opening 320, and the filter opening 630 on the substrate 100 is circular. The circular shape has irregular curved edges, which can better improve diffraction problems between adjacent portions.

[0112] Optionally, the orthographic projection of the first electrode 210 on the substrate 100 is circular.

[0113] In these optional embodiments, when light passes between two adjacent first electrodes 210, since the positive projection of the first electrode 210 on the substrate 100 is circular and the gap between the two adjacent first electrodes 210 is irregular, it is difficult for the light to diffract here, which can improve the light extraction effect.

[0114] Optionally, the orthographic projection of the filter opening 630 on the substrate 100 is circular.

[0115] In these optional embodiments, when light is emitted through the filter opening 630 , since the orthographic projection of the filter opening 630 on the substrate 100 is circular, the diffraction intensity in a specific direction can be reduced, thereby improving the display uniformity.

[0116] Optionally, the orthographic projection of the pixel opening 320 on the substrate 100 is circular.

[0117] In these optional embodiments, when light is emitted through the pixel opening 320 , since the orthographic projection of the pixel opening 320 on the substrate 100 is circular, the diffraction intensity in a specific direction can be reduced, thereby improving the display uniformity.

[0118] Optionally, the groove 340 extends along an extension path surrounding the pixel opening 320, and the shape of the extension path is adapted to the shape of the pixel opening 320 on the substrate 100. For example, the orthographic projection of the extension path on the substrate 100 and the edge of the orthographic projection of the pixel opening 320 on the substrate 100 are arranged at equal intervals. When the orthographic projection of the pixel opening 320 on the substrate 100 is circular, the extension path can be a closed circle or an arc, and the center of the circle where the extension path is located overlaps with the center of the orthographic projection of the pixel opening 320 on the substrate 100, so as to better improve the display effect of the display panel.

[0119] For example, when the groove 340 forms a closed ring around the pixel opening 320, the extension path is circular, and the center of the circle where the extension path is located overlaps with the center of the orthographic projection of the pixel opening 320 on the substrate 100, thereby further improving the display effect of the display panel. When the groove 340 includes multiple sub-segments 341 spaced apart around the pixel opening 320, the extension path of the sub-segments 341 is arc-shaped, and the center of the circle where the extension path is located overlaps with the center of the orthographic projection of the pixel opening 320 on the substrate 100, thereby further improving the display effect of the display panel.

[0120] Optionally, there are various corresponding relationships between the grooves 340 and the pixel openings 320 . For example, the groove 340 is provided on the periphery of at least one of the plurality of pixel openings 320 .

[0121] Optionally, the light-emitting unit 330 includes a first light-emitting unit 331, a second light-emitting unit 332, and a third light-emitting unit 333. The first light-emitting unit 331 can be configured to emit red light, the second light-emitting unit 332 can be configured to emit green light, and the third light-emitting unit 333 can be configured to emit blue light. Optionally, the pixel opening 320 includes a first pixel opening 321 for accommodating the first light-emitting unit 331, a second pixel opening 322 for accommodating the second light-emitting unit 332, and a third pixel opening 323 for accommodating the third light-emitting unit 333. Optionally, the filter opening 630 includes a first filter opening 631, a second filter opening 632, and a third filter opening 633. The positions of the first filter opening 631 and the first pixel opening 321 correspond to each other, i.e., the orthographic projection of the first pixel opening 321 on the substrate 100 is within the orthographic projection of the first filter opening 631 on the substrate 100. The positions of the second filter opening 632 and the second pixel opening 322 correspond to each other, and the positions of the third filter opening 633 and the third pixel opening 323 correspond to each other.

[0122] Optionally, a groove 340 is provided around at least one of the first pixel opening 321, the second pixel opening 322, and the third pixel opening 323. For example, the groove 340 is provided around the first pixel opening 321 to reduce the mutual interference between the light emitted by the first light-emitting unit 331 and the other light-emitting units 330. Alternatively, the groove 340 is provided around the second pixel opening 322 to reduce the mutual interference between the light emitted by the second light-emitting unit 332 and the other light-emitting units 330. Alternatively, the groove 340 is provided around the third pixel opening 323 to reduce the mutual interference between the light emitted by the third light-emitting unit 333 and the other light-emitting units 330.

[0123] In some other optional embodiments, the groove 340 is disposed around each pixel opening 320 .

[0124] In these optional embodiments, a groove 340 is provided around each pixel opening 320 , which can improve the light interference problem between any two adjacent light-emitting units 330 and further improve the display effect of the display panel.

[0125] Optionally, two or more grooves 340 are arranged side by side between two adjacent pixel openings 320. When grooves 340 are arranged around the periphery of any pixel opening 320, and each of the two adjacent pixel openings 320 has a groove 340 arranged around its periphery, then two or more grooves 340 are arranged side by side between the two adjacent pixel openings 320, which can further increase the distance that holes or electrons move between the two light-emitting units 330, thereby further improving the display effect of the display panel.

[0126] In any of the above embodiments, the thickness of the pixel definition layer 300 may be 0.7 μm to 0.9 μm. For example, the thickness of the pixel definition layer 300 may be 0.7 μm, 0.72 μm, 0.81 μm, 0.86 μm, 0.9 μm, etc.

[0127] In these optional embodiments, when the thickness of the pixel definition layer 300 is within the aforementioned range, it can alleviate the problem of the pixel definition layer 300 being too thin as a whole, resulting in the groove 340 penetrating the pixel defining portion 310, and can also alleviate the problem of the pixel definition layer 300 being too thick, resulting in an uneven surface of the encapsulation layer 500. Furthermore, when the thickness of the pixel definition layer 300 is within the aforementioned range, the thicker the pixel definition layer 300 is, the more likely it is that the groove 340 penetrates the pixel definition layer 300.

[0128] Optionally, when the pixel definition layer 300 has a multi-layer structure, for example, when the pixel definition layer 300 includes the first sublayer 300a and the second sublayer 300b, the sum of the thicknesses of the first sublayer 300a and the second sublayer 300b is 0.7 μm to 0.9 μm. When the pixel definition layer 300 has a single-layer structure, the thickness of the pixel definition layer 300 itself is 0.7 μm to 0.9 μm.

[0129] Optionally, the thickness of the second encapsulation layer 520 is 10 μm to 15 μm. For example, the thickness of the second encapsulation layer 520 is 10 μm, 12 μm, 13.5 μm, 14.2 μm, 15 μm, etc. For example, the thickness of the second encapsulation layer 520 is 13±0.5 μm.

[0130] In these optional embodiments, when the thickness of the second encapsulation layer 520 is within the aforementioned range, it can improve the problem of the overall thickness of the second encapsulation layer 520 being too small, thereby affecting the flatness of the surface of the encapsulation layer 500; and it can also improve the problem of the overall thickness of the display panel being too thick, thereby improving the flatness of the overall surface of the encapsulation layer 500. In addition, when the thickness of the second encapsulation layer 520 is within the aforementioned range, the thickness of the second encapsulation layer 520 is within a larger thickness range, which can improve the flatness of the overall surface of the encapsulation layer 500.

[0131] Optionally, the thickness of the touch optical adhesive layer 740 is less than 3.5 μm. For example, the thickness of the touch optical adhesive layer 740 is 3.2 μm, 3.0 μm, 2.1 μm, 1.5 μm, 1.2 μm, etc., so as to reduce the thickness of the touch optical adhesive layer 740 and reduce the excessive thickness of the display panel caused by the thickening of the second encapsulation layer 520. In other optional embodiments, the touch function layer 700 may not include the touch optical adhesive layer 740, that is, the light shielding portion 610 directly covers the first touch layer 720 and the second touch layer 730. This achieves the purpose of thinning the touch function layer 700. That is, when the touch function layer 700 includes a touch conductive layer (that is, when the first touch layer 720 or the second touch layer 730), the light shielding portion 610 directly covers the touch conductive layer, and the light shielding portion 610 is in contact with the touch conductive layer to achieve the purpose of thinning the touch function layer 700.

[0132] The second aspect of the present application also provides a display device, comprising a display panel according to any of the first aspect embodiments. Because the display device provided by the second aspect of the present application comprises the display panel according to any of the first aspect embodiments, the display device provided by the second aspect of the present application has the beneficial effects of the display panel according to any of the first aspect embodiments, and thus will not be further elaborated here.

[0133] 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.

[0134] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described 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 encompasses all technical solutions within the scope of the claims.

Claims

1. A display panel, characterized in that: include: substrate; A first electrode layer is provided on the substrate, wherein the first electrode layer comprises a plurality of first electrodes distributed in an array; a pixel definition layer disposed on the substrate, the pixel definition layer comprising a pixel defining portion and a pixel opening enclosed by the pixel defining portion, wherein an orthographic projection of each pixel opening on the substrate at least partially overlaps an orthographic projection of each first electrode on the substrate; a light-emitting unit, at least a portion of which is located in the pixel opening, the light-emitting unit comprising a first light-emitting layer, a charge generation layer, and a second light-emitting layer stacked in a direction away from the substrate; a filter layer disposed on a side of the light-emitting unit and the pixel definition layer facing away from the substrate, the filter layer comprising a light-shielding portion and a filter unit, the light-shielding portion enclosing a filter opening, the orthographic projection of each filter opening on the substrate and the orthographic projection of each pixel opening on the substrate at least partially overlapping, and at least a portion of the filter unit being located within the filter opening; A groove is provided on the surface of the pixel definition layer facing away from the substrate. The groove is recessed toward the substrate and surrounds at least a portion of the pixel opening.

2. The display panel according to claim 1, wherein: The charge generation layer includes a main body portion and a hollow portion penetrating the main body portion, wherein an orthographic projection of the hollow portion on the substrate and an orthographic projection of the groove on the substrate at least partially overlap; Preferably, the orthographic projection of the hollow portion on the substrate is located within the orthographic projection of the groove on the substrate.

3. The display panel according to claim 1, wherein: The pixel definition layer includes a first sublayer and a second sublayer stacked in a square away from the substrate, and the groove is provided in the second sublayer; Preferably, the groove is formed by a depression in the surface of the second sub-layer facing away from the substrate, or the groove is provided through the second sub-layer; Preferably, the pixel opening includes a first sub-opening formed by the first sub-layer and a second sub-opening formed by the second sub-layer, and the orthographic projection of the first sub-opening on the substrate is located within the orthographic projection of the second sub-opening on the substrate; Preferably, the orthographic projection of the second sub-opening on the substrate is located within the orthographic projection of the filter opening on the substrate; Preferably, the orthographic projection of the filter opening on the substrate is located within the orthographic projection of the first electrode on the substrate; Preferably, the groove is arranged so that its orthographic projection on the substrate surrounds at least a portion of the orthographic projection of the first electrode on the substrate; Optionally, the absorbance of the first sub-layer is greater than the absorbance of the second sub-layer.

4. The display panel according to claim 1, wherein: The pixel definition layer is a single-layer structure, and the depth H1 of the groove and the thickness H2 of the pixel definition layer satisfy: H1≤3 / 4H2.

5. The display panel according to claim 1, wherein: The orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the filter opening on the substrate; Preferably, the orthographic projection of the filter opening on the substrate is located within the orthographic projection of the first electrode on the substrate; Preferably, the orthographic projection of the groove on the substrate is located within the orthographic projection of the light-shielding portion on the substrate.

6. The display panel according to claim 1, wherein: The groove is arranged in a closed ring around the pixel opening; or the groove includes a plurality of sub-segments spaced apart around the pixel opening; Preferably, the groove includes a plurality of sub-segments spaced apart around the periphery of the pixel opening, and the orthographic projections of the plurality of sub-segments on the substrate are symmetrically arranged about the center of the orthographic projection of the pixel opening on the substrate; Preferably, the groove includes a plurality of sub-segments spaced apart around the periphery of the pixel opening, and two adjacent sub-segments are spaced apart around the periphery of the pixel opening to form a clearance space; The first electrode includes an electrode block and a connecting block connected to the electrode block. The connecting block is formed by extending from at least one of the clearance spaces in a direction away from the first electrode.

7. The display panel according to claim 1, wherein: The orthographic projection of at least one of the first electrode, the pixel opening, and the filter opening on the substrate is circular; Preferably, the orthographic projection of the first electrode on the substrate is circular; Preferably, the orthographic projection of the filter opening on the substrate is circular; Preferably, the orthographic projection of the pixel opening on the substrate is circular.

8. The display panel according to claim 1, wherein: The groove is provided on the peripheral side of each pixel opening; Preferably, two or more grooves are arranged side by side between two adjacent pixel openings.

9. The display panel according to claim 1, wherein: The thickness of the pixel definition layer is 0.7 μm to 0.9 μm; And / or, the display panel further comprises an encapsulation layer located on a side of the light-emitting unit facing away from the substrate, the encapsulation layer comprising a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked in a direction away from the substrate, the second encapsulation layer comprising an organic material, and having a thickness of 10 μm to 15 μm; And / or, the display panel also includes an encapsulation layer and a touch function layer, the encapsulation layer is located on the side of the light-emitting unit away from the substrate, the touch function layer is located on the side of the encapsulation layer away from the substrate, the touch function layer includes a touch conductive layer, and the shading portion and the touch conductive layer are in contact and connected.

10. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 9.

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