A display panel and electronic device

Abstract

This application provides a display panel and an electronic device, relating to the field of display technology. The display panel includes a superimposed structure of a first pixel definition layer, an electrode connection layer, and a second pixel definition layer. Based on this superimposed structure and the first pixel opening, second pixel opening, and third pixel opening formed therein, the light-emitting functional layer can be fabricated without a fine metal mask, thus avoiding the problems associated with the FMM process. Furthermore, the display panel also includes a second inorganic film covering the first inorganic film. Therefore, when a moisture erosion channel appears at the first inorganic film, it can be covered and blocked by the second inorganic film, thereby reducing the risk of moisture erosion to the display panel and improving the packaging reliability of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a display panel and an electronic device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) are self-emissive display devices. Compared to traditional liquid crystal displays (LCDs), OLED technology does not require a backlight and is self-emissive. OLEDs use thin layers of organic material to create the light-emitting device; when current flows through, the organic material emits light. OLED display panels offer advantages such as energy savings, the ability to be made lighter and thinner, and a wider temperature tolerance and viewing angle compared to LCD panels. OLED display panels are currently one of the most discussed technologies in flat panel displays. While OLED display panels offer numerous advantages, current OLED panel packaging reliability has some shortcomings and requires further improvement. Summary of the Invention

[0003] In view of this, this application provides a display panel and electronic device that effectively solves the technical problems existing in the prior art, reduces the risk of the display panel being susceptible to moisture corrosion, and improves the packaging reliability of the display panel.

[0004] To achieve the above objectives, the technical solution provided in this application is as follows:

[0005] A display panel, comprising:

[0006] Substrate;

[0007] An anode layer located on the substrate, the anode layer comprising a plurality of anode blocks;

[0008] A first pixel definition layer is located on the side of the anode layer facing away from the substrate, and the pixel definition layer includes a first pixel opening corresponding to the anode block;

[0009] An electrode connection layer is located on the side of the pixel definition layer opposite to the substrate, and the electrode connection layer includes a second pixel opening corresponding to the first pixel opening;

[0010] The second pixel definition layer is located on the side of the electrode connection layer away from the substrate, and the second pixel definition layer includes a third pixel opening corresponding to the second pixel opening;

[0011] A light-emitting functional layer, the light-emitting functional layer comprising a plurality of first portions and a plurality of second portions, wherein the first portions are at least located in the first pixel opening, and the second portions at least cover the sidewall of the third pixel opening;

[0012] A cathode layer, the cathode layer comprising a first cathode portion and a second cathode portion, the first cathode portion covering the first portion and extending to contact the electrode connection layer;

[0013] A first inorganic film is located on the side of the cathode layer opposite to the substrate;

[0014] A second inorganic film is located on the side of the first inorganic film facing away from the substrate, and the second inorganic film covers the first inorganic film.

[0015] Based on the same inventive concept, this application also provides an electronic device, which includes the above-described display panel.

[0016] Compared with existing technologies, the technical solution provided in this application has at least the following advantages:

[0017] This application provides a display panel and an electronic device. The display panel includes a substrate; an anode layer located on the substrate, the anode layer including a plurality of anode blocks; a first pixel definition layer located on the side of the anode layer facing away from the substrate, the pixel definition layer including a first pixel opening corresponding to the anode blocks; an electrode connection layer located on the side of the pixel definition layer facing away from the substrate, the electrode connection layer including a second pixel opening corresponding to the first pixel opening; and a second pixel definition layer located on the side of the electrode connection layer facing away from the substrate, the second pixel definition layer including... A third pixel opening corresponding to the second pixel opening; a light-emitting functional layer, the light-emitting functional layer including a plurality of first portions and a plurality of second portions, the first portions being at least located in the first pixel opening, and the second portions at least covering the sidewall of the third pixel opening; a cathode layer, the cathode layer including a first cathode portion and a second cathode portion, the first cathode portion covering the first portion and extending to contact the electrode connection layer; a first inorganic film, the first inorganic film being located on the side of the cathode layer away from the substrate; a second inorganic film, the second inorganic film being located on the side of the first inorganic film away from the substrate, and the second inorganic film covering the first inorganic film.

[0018] As described above, the technical solution provided in this application includes a display panel comprising a superimposed structure of a first pixel definition layer, an electrode connection layer, and a second pixel definition layer. Based on this superimposed structure and the first pixel opening, second pixel opening, and third pixel opening formed therein, the light-emitting functional layer can be fabricated without a fine metal mask (FMM), thus avoiding the problems associated with the FMM process. Furthermore, the display panel also includes a second inorganic film covering the first inorganic film. Therefore, when a moisture erosion channel appears at the first inorganic film, it can be covered and blocked by the second inorganic film, thereby reducing the risk of the display panel being susceptible to moisture erosion and improving the packaging reliability of the display panel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0028] Figure 9 This is a schematic diagram of the structure of a light-emitting functional layer provided in an embodiment of this application;

[0029] Figure 10 This is a schematic diagram of another light-emitting functional layer provided in an embodiment of this application;

[0030] Figure 11 This is a schematic diagram of the structure of an OLED provided in an embodiment of this application;

[0031] Figure 12 This is a schematic diagram of another OLED structure provided in an embodiment of this application;

[0032] Figure 13 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0033] Figure 14 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0034] Figure 15 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0035] Figure 16 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0036] Figure 17 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0037] Figure 18 An optical path diagram provided for an embodiment of this application;

[0038] Figure 19 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0039] Figure 20 Another optical path diagram provided for embodiments of this application;

[0040] Figure 21 This is a schematic diagram of the structure of another display panel provided in an embodiment of this application;

[0041] Figure 22 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0042] Figure label:

[0043] 10-Substrate; 11-Barrier; 101-Substrate; 102-Semiconductor layer; 103-Gate insulating layer; 104-Gate metal layer; 105-Capacitor insulating layer; 106-Capacitor metal layer; 107-Interlayer insulating layer; 108-Source / drain metal layer; 109-Planarization layer; 20-Anode layer; 21-Anode block; 31-First pixel definition layer; 32-Electrode connection layer; 33-Second pixel definition layer; 301-First pixel aperture; 302-Second pixel 303 - Third pixel opening; 40 - Light-emitting functional layer; 401 - Hole transport layer; 4011 - First hole transport layer; 4012 - Second hole transport layer; 402 - Light-emitting layer; 4021 - First light-emitting layer; 4022 - Second light-emitting layer; 403 - Hole blocking layer; 4031 - First hole blocking layer; 4032 - Second hole blocking layer; 404 - Electron transport layer; 4041 - First electron transport layer; 4042 - Second electron transport layer Sub-transport layer; 405-Electron injection layer; 406-N-type charge generation layer; 407-P-type charge generation layer; 41-First part; 411-First color light part; 412-Second color light part; 42-Second part; 50-Cathode layer; 51-First cathode part; 52-Second cathode part; 53-Cathode cover film; 61-First inorganic film; 611-Inorganic film block; 62-Second inorganic film; 63-Third inorganic film; 70-Inorganic film; 1 00 - Display panel; 1000 - Electronic device; AA - Display area; NA - Bezel area; 80 - Color resist layer; 81 - Color resist section; 811 - First color light color resist section; 812 - Second color light color resist section; 91 - First refractive layer; 911 - First refractive section; 911a - First color light refractive section; 911b - Second color light refractive section; 92 - Second refractive layer; 1000 - Clock device; AA - Display area; NA - Bezel area; NL - Normal. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] As described in the background section, Organic Light Emitting Diodes (OLEDs) are active-matrix light-emitting devices. Compared to traditional liquid crystal displays (LCDs), OLED technology eliminates the need for backlighting, exhibiting self-emissive characteristics. OLEDs utilize thin layers of organic material to create the light-emitting device; when current flows through, the organic material emits light. OLED displays offer advantages such as energy savings, the ability to be made lighter and thinner, and greater tolerance to temperature variations compared to LCDs, along with wider viewing angles. OLED displays are currently one of the most discussed technologies in flat panel displays. Despite these advantages, the current packaging reliability of OLED displays has some shortcomings and requires further improvement.

[0046] Specifically, in the current OLED display panel manufacturing process, the RGB light-emitting functional layer is generally fabricated using FMM (Film Mesh) evaporation technology. However, due to the limitations of the FMM process (requiring significant shading for RGB light-emitting functional layer deposition), it is difficult to use for ultra-high pixel density (pixel per inch, PPI) products. Furthermore, for large-size panels, evaporation is constrained by uncontrollable factors such as mask sheet sagging deformation, thus preventing the use of FMM for RGB light-emitting functional layer deposition. With the development of display technology, high-end mobile displays require larger sizes, higher resolutions, wider color gamuts, and lower power consumption. Therefore, FMM-free RGB light-emitting functional layer deposition has become an important development direction. However, display panels fabricated using FMM-free evaporation processes suffer from poor encapsulation due to the unique pixel definition structure, resulting in a certain risk of moisture corrosion and reduced encapsulation reliability.

[0047] Based on this, the present application provides a display panel 100 and an electronic device 1000, which effectively solves the technical problems existing in the prior art, reduces the risk of the display panel 100 being susceptible to moisture corrosion, and improves the packaging reliability of the display panel 100.

[0048] To achieve the above objectives, the technical solutions provided in this application are as follows, in specific combination with... Figures 1 to 22 The technical solutions provided in the embodiments of this application will be described in detail.

[0049] refer to Figure 1The diagram shows a schematic representation of a display panel 100 according to an embodiment of this application. The display panel 100 includes: a substrate 10; an anode layer 20 located on the substrate 10, comprising a plurality of anode blocks 21; a first pixel definition layer 31 located on the side of the anode layer 20 facing away from the substrate 10, comprising a first pixel opening 301 corresponding to the anode block 21; an electrode connection layer 32 located on the side of the pixel definition layer 31 facing away from the substrate 10, comprising a second pixel opening 302 corresponding to the first pixel opening 301; and a second pixel definition layer 33 located on the side of the electrode connection layer 32 facing away from the substrate 10, comprising a third pixel opening 303 corresponding to the second pixel opening 302. A light-emitting functional layer 40 includes a plurality of first portions 41 and a plurality of second portions 42. The first portions 41 are located at least in the first pixel opening 301, and the second portions 42 at least cover the sidewall of the third pixel opening 303. A cathode layer 50 includes a first cathode portion 51 and a second cathode portion 52. The first cathode portion 51 covers the first portions 41 and extends to contact the electrode connection layer 32, thereby connecting all the first portions 41 in the display panel 100 through the electrode connection layer 32, which is equivalent to forming a full-area cathode in the display panel 100. A first inorganic film 61 is located on the side of the cathode layer 50 opposite to the substrate 10. A second inorganic film 62 is located on the side of the first inorganic film 61 opposite to the substrate 10, and the second inorganic film 62 covers the first inorganic film 61.

[0050] As can be seen from the above, the technical solution provided in this application embodiment includes a display panel 100 with a superimposed structure of a first pixel definition layer 31, an electrode connection layer 32, and a second pixel definition layer 33. Based on this superimposed structure and the first pixel opening 301, the second pixel opening 302, and the third pixel opening 303 formed by the superimposed structure, the light-emitting functional layer 40 can be fabricated without FMM, thus avoiding the related problems caused by the FMM process. In other words, before fabricating the light-emitting functional layer 40 of the display panel 100, the superimposed structure of the first pixel definition layer 31, the electrode connection layer 32, and the second pixel definition layer 33 is first fabricated. Then, the light-emitting functional layer 40 and the cathode layer 50 are formed based on the Open Mask process and the patterning process. The light-emitting functional layer 40 and the cathode layer 50 prepared by this process include, in addition to the first part located at least at the first pixel opening 301, the second part located at least at the inner wall of the second pixel definition layer 33 at the pixel opening (i.e., the side wall of the third pixel opening 303). It can be seen that this application does not need to use the FMM process to prepare the light-emitting functional layer 40. The process of preparing the light-emitting functional layer 40 using the FMM process is the same as the prior art, so this application will not elaborate further.

[0051] Furthermore, the display panel 100 provided in this application embodiment includes a first inorganic film 61 fabricated after the cathode layer 50. Since the display panel 100 includes a superimposed structure of a first pixel definition layer 31, an electrode connection layer 32, and a second pixel definition layer 33, and corner structures inevitably form between adjacent structural layers in the superimposed structure, the first inorganic film 61 is prone to cracking at these corner structures, resulting in moisture erosion channels at the first inorganic film 61. The display panel 100 provided in this application embodiment also includes a second inorganic film 62 covering the first inorganic film 61. Therefore, when moisture erosion channels appear at the first inorganic film 61, the second inorganic film 62 can cover and block them, thereby reducing the risk of moisture erosion to the display panel 100 and improving the packaging reliability of the display panel 100.

[0052] In some embodiments, during the fabrication of the display panel 100 provided in this application, the patterning etching process of the light-emitting functional layer 40 and the cathode layer 50 is performed after the first inorganic film 61 is fabricated. Since the light-emitting functional layer 40 needs to be etched and divided at the boundary between adjacent pixel units to achieve single-pixel encapsulation, the first inorganic film 61 is also etched and divided into multiple inorganic film blocks 611. (Continue referring to...) Figure 1As shown, the first inorganic film 61 provided in this embodiment includes multiple inorganic film blocks 611. The inorganic film blocks 611 cover the first cathode portion 51 and extend to cover the side of the second cathode portion 52 opposite to the second portion 42. The inorganic modules 611 are prone to cracking not only at the corners of the superimposed structure of the first pixel definition layer 31, electrode connection layer 32, and second pixel definition layer 33, resulting in moisture erosion channels, but also at the second portion 42 and the second cathode portion 52 due to etching. Therefore, the second inorganic film 62 covers and blocks the moisture erosion channels at the inorganic modules 611, reducing the risk of moisture erosion to the display panel 100 and improving the packaging reliability of the display panel 100. In some other embodiments, the first inorganic film 61 provided in this embodiment can also be prepared after the patterning etching process of the light-emitting functional layer 40 and the cathode layer 50 is completed. The first inorganic film 61 can also be a single, continuous film structure; this application does not impose specific limitations on this.

[0053] The substrate 10 provided in this embodiment is composed of multiple metal layers and multiple insulating layers, which are used to fabricate pixel circuits, scan driving circuits, and other circuitry within the substrate 10. The scan driving circuit is electrically connected to the pixel circuit and provides corresponding scan control signals to the pixel circuit. The pixel circuit is electrically connected to the anode block 21 and provides corresponding driving signals to the OLED composed of the anode block 21, the first portion 41, and the first cathode portion 51. Both the scan driving circuit and the pixel circuit are constructed from transistors and capacitors, similar to existing technologies, and therefore will not be described in detail. See reference [link to specific documentation]. Figure 2The diagram shown is a schematic representation of another display panel 100 provided in this application embodiment. The substrate 10 includes a substrate 101; a semiconductor layer 102 located on the substrate 101, the semiconductor layer 102 including an active region forming a transistor TFT; a gate insulating layer 103 located on the side of the semiconductor layer 102 facing away from the substrate 101; a gate metal layer 104 located on the side of the gate insulating layer 103 facing away from the substrate 101, the gate metal layer 104 including a gate for forming a transistor TFT; a capacitor insulating layer 105 located on the side of the gate metal layer 104 facing away from the substrate 101; and a capacitor metal layer 106 located on the side of the capacitor insulating layer 105 facing away from the substrate 101, the capacitor metal layer 106 including one electrode forming a capacitor in the circuit, the other electrode forming the capacitor may be located on the gate metal layer 104, or the other electrode forming the capacitor may be located on the source / drain metal layer. The capacitor metal layer 106 is located on the side of the capacitor metal layer 106 facing away from the substrate 101; the source / drain metal layer 108 is located on the side of the interlayer insulating layer 107 facing away from the substrate 101, the source / drain metal layer 108 includes the source and drain of the transistor TFT, and the source and drain are in contact with the active region through their respective vias; the planarization layer 109 is located on the side of the source / drain metal layer 108 facing away from the substrate 101; the anode layer 20 is located on the side of the planarization layer 109 facing away from the substrate 101, the anode layer 20 includes a plurality of anode blocks 21, the anode blocks 21 are electrically connected to the source or drain of the corresponding transistor TFT in the pixel circuit through vias; and the first pixel definition layer 31 is located on the side of the anode layer 20 facing away from the substrate 101, the first pixel definition layer 31 includes a plurality of first pixel openings 301, the first pixel openings 301 expose the anode blocks 21.

[0054] Figure 2 In the display panel 100 shown, the TFT transistors in the substrate 10 are top-gate transistors, meaning the gate of the TFT is located above the active layer. In some other embodiments, the TFT transistors in the substrate 10 provided in this application can also be bottom-gate transistors, meaning the gate of the TFT is located below the active layer. See details... Figure 3The diagram shown is a structural schematic of another display panel 100 provided in this application embodiment. The substrate 10 includes a substrate 101; a gate metal layer 104 on the substrate 101, the gate metal layer 104 including a gate for forming a transistor TFT; a gate insulating layer 103 on the side of the gate metal layer 104 facing away from the substrate 101; a semiconductor layer 102 on the side of the gate insulating layer 103 facing away from the substrate 101, the semiconductor layer 102 including an active region for forming a transistor TFT; a capacitor insulating layer 105 on the side of the semiconductor layer 102 facing away from the substrate 101; and a capacitor metal layer 106 on the side of the capacitor insulating layer 105 facing away from the substrate 101, the capacitor metal layer 106 including one electrode forming a capacitor in a circuit, the other electrode forming the capacitor may be located on the gate metal layer 104, or the other electrode forming the capacitor may be located on the active region. The system comprises: a drain metal layer 108; an interlayer insulating layer 107 located on the side of the capacitor metal layer 106 facing away from the substrate 101; a source / drain metal layer 108 located on the side of the interlayer insulating layer 107 facing away from the substrate 101, the source / drain metal layer 108 including a source and a drain forming a transistor TFT, and the source and drain contacting the active region through their respective vias; a planarization layer 109 located on the side of the source / drain metal layer 108 facing away from the substrate 101; an anode layer 20 located on the side of the planarization layer 109 facing away from the substrate 101, the anode layer 20 including a plurality of anode blocks 21, the anode blocks 21 being electrically connected to the source or drain of the corresponding transistor TFT in the pixel circuit through vias; and a first pixel definition layer 31 located on the side of the anode layer 20 facing away from the substrate 101, the first pixel definition layer 31 including a plurality of first pixel openings 301, the first pixel openings 301 exposing the anode blocks 21.

[0055] refer to Figure 4The diagram shows a schematic of another display panel 100 provided in this embodiment of the application. The display panel 100 includes: an organic film 70 located on the side of the second inorganic film 62 facing away from the substrate 10, and a third inorganic film 63 located on the side of the organic film 70 facing away from the substrate. The encapsulation structure provided in this embodiment can be a first inorganic film 61, a second inorganic film 62, an organic film 70, and a third inorganic film 63 stacked sequentially. The inorganic films can effectively prevent moisture and other substances from intruding into the panel interior. Inserting the organic film 70 between the inorganic films helps stabilize the non-uniform properties of the inorganic films and improves the stress and flexibility of the encapsulation structure. Therefore, the cooperation between the first inorganic film 61, the second inorganic film 62, the organic film 70, and the third inorganic film 63 can further improve the encapsulation reliability of the display panel 100. Optionally, at least one inorganic film (such as at least one of the first inorganic film 61, the second inorganic film 62, and the third inorganic film 63) in the display panel 100 provided in this application embodiment is a SiOx film, a SiNx film, or a SiOx / SiNx stacked film. Furthermore, this application embodiment does not impose specific limitations on the thickness of the inorganic film; it needs to be adaptively adjusted according to the actual application to coordinate with other film layers and achieve the best light emission effect of the OLED.

[0056] In addition to adding an organic film 70 and a third inorganic film 63 to the second inorganic film 62 to improve the encapsulation reliability of the display panel 100, this application can also optimize the coverage area of ​​the second inorganic film 62 to improve the encapsulation reliability of the display panel 100. In some embodiments, the display panel 100 provided in this application can be a borderless display panel 100, which only includes a display area AA, wherein the scanning driving circuit and the pixel circuit can both be disposed in the display area AA, and the second inorganic film 62 covers the display area AA. Alternatively, the display panel 100 provided in this application can also be a narrow-bezel display panel 100 including a display area AA and a border area NA, wherein the scanning driving circuit can be disposed in the border area NA, and the pixel circuit is disposed in the display area AA, wherein the second inorganic film 62, in addition to covering the display area AA, also extends to cover at least a portion of the border area NA, to further improve the encapsulation reliability of the display panel 100. See details. Figure 5 The diagram shown illustrates the structure of another display panel 100 provided in this application embodiment. The display panel 100 includes a display area AA and a border area NA surrounding at least a portion of the display area AA. A second inorganic film 62 covers the display area AA and extends to cover at least a portion of the border area NA. The second inorganic film 62 not only blocks moisture erosion at the display area AA but also blocks moisture erosion at the border area NA, further improving the packaging reliability of the display panel 100. (Continue to refer to...) Figure 5 As shown, the first inorganic film 61 provided in this application embodiment may only include the inorganic module 611 located in the display area AA and corresponding to the first part 41, while the portion of the first inorganic film 61 in the border area NA is not prepared, or is etched away after preparation.

[0057] Or refer to Figure 6 The diagram shown is a structural schematic of another display panel 100 provided in this application embodiment. In addition to the inorganic module 611 located at the display area AA, the first inorganic film 61 provided in this application embodiment also includes an inorganic film portion 612 covering at least a portion of the border area NA. The first inorganic film 61 and the second inorganic film 62 jointly block moisture erosion at the border area NA, improving the encapsulation reliability of the display panel 100. (Continue to refer to...) Figure 5 and Figure 6 As shown, the encapsulation structure of the display panel 100 provided in this embodiment may include an organic film 70 and a third inorganic film 63. Both the organic film 70 and the third inorganic film 63 can cover the display area AA and extend to cover at least a portion of the border area NA. Furthermore, the first inorganic film 61 and the third inorganic film 63 contact each other at the border area NA to form a sealed cavity, and the organic film 70 is located within this sealed cavity. This prevents the formation of moisture erosion channels at the edges of the organic film 70, thereby ensuring high encapsulation reliability of the display panel 100.

[0058] In some embodiments, the display panel 100 provided in this application has at least one baffle 11 disposed in the bezel area NA along the direction surrounding the display area AA at the bezel area NA. The at least one inorganic film provided in this application also extends to the baffle 11 to improve encapsulation reliability. (See reference...) Figure 7 The diagram shows a structural schematic of another display panel 100 provided in this application embodiment. The bezel area NA provided in this application embodiment includes at least one barrier wall 11 disposed along the direction surrounding the display area AA, and the barrier wall 11 is disposed on the side of the substrate 10 with the OLED. The barrier wall 11 can be formed by stacking at least two of the following structures in the display panel 100: the planarization layer 109, the first pixel definition layer 31, and the second pixel definition layer 32; or, the barrier wall 11 can be made of a single material. The second inorganic film 62 provided in this application embodiment covers the display area AA and extends beyond the at least one barrier wall 11, as shown below. Figure 7 The second inorganic film 62 shown extends beyond all the baffles 11 (e.g., the second inorganic film 62 can extend to the clearance area outside all the baffles 11), thereby not only blocking water vapor erosion through the second inorganic film 62, but also blocking water vapor erosion through the baffles 11, further improving the encapsulation reliability of the display panel 100.

[0059] It should be noted that when the display panel 100 provided in this application embodiment includes a barrier 11, the encapsulation structure is not limited to... Figure 7 The illustrated structure is merely one of all the encapsulation structures applicable to this application. In some other embodiments, the first inorganic film 61 provided in this application may include an inorganic film portion 612 covering at least a portion of the border region NA, and the first inorganic film 61 may also extend beyond at least one barrier 11, such as extending beyond one barrier 11, or extending beyond more or even all barrier 11 (specifically as follows). Figure 8 The first inorganic membrane 61 shown extends beyond all the retaining walls 11, and this application does not impose specific limitations on this. Similarly, the third inorganic membrane 63 provided in the embodiments of this application can also extend beyond at least one retaining wall 11, such as extending beyond one retaining wall 11, or extending beyond more or even all the retaining walls 11, and this application also does not impose specific limitations on this.

[0060] In some embodiments, the electrode connection layer 32 provided in this application exposes the surface of the first pixel definition layer 31 facing away from the substrate 10; and the second pixel definition layer 33 extends beyond the surface of the electrode connection layer 32 facing away from the substrate 10, thereby forming an undercut structure between the second pixel definition layer 33 and the electrode connection layer 32, which not only facilitates single-pixel packaging but also improves color gamut. Figures 1 to 8 As shown, the second pixel definition layer 33 provided in this embodiment extends beyond the surface of the electrode connection layer 32 away from the substrate 10, so that the orthographic projection of the second pixel opening 302 on the substrate 10 completely covers the orthographic projection of the third pixel opening 303 on the substrate 10. This forms an undercut structure between the second pixel definition layer 33 and the electrode connection layer 32, which is beneficial for single-pixel encapsulation and color gamut improvement. In addition, the electrode connection layer 32 provided in this embodiment exposes the surface of the first pixel definition layer 31 away from the substrate 10, so that the orthographic projection of the second pixel opening 302 on the substrate 10 completely covers the orthographic projection of the first pixel opening 301 on the substrate 10. While the light-emitting functional layer 40 can be fabricated using an FMM-free process, the first part 41 can extend to the sidewall of the second pixel opening 302 (i.e., the inner wall of the electrode connection layer 32 of the second pixel opening 302), which is equivalent to increasing the light-emitting area of ​​the first part 41, thereby improving the luminous efficiency and light-emitting area of ​​the OLED.

[0061] In some embodiments, the light-emitting functional layer 40 provided in this application may only include a light-emitting layer. In this case, the luminous efficiency of the OLED can be improved by increasing the light-emitting area of ​​the first portion 41 as described above. Furthermore, in addition to increasing the light-emitting area of ​​the first portion 41, the embodiments of this application can also optimize the stacking structure of the light-emitting functional layer 40 itself to achieve the goal of improving the luminous efficiency of the OLED. See details... Figure 9 The diagram shown is a schematic diagram of the structure of a light-emitting functional layer provided in an embodiment of this application. The light-emitting functional layer 40 includes a hole transport layer 401, a light-emitting layer 402, a hole blocking layer 403, and an electron transport layer 404, which are sequentially stacked on the anode layer 20. It further includes a hole injection layer 408 located between the anode layer 20 and the hole transport layer 401, and an electron injection layer 405 located on the side of the electron transport layer 404 away from the anode layer 20. The cathode layer 50 is located on the side of the electron injection layer 405 away from the anode layer 20. By optimizing the structure of the light-emitting functional layer 40, the luminous efficiency of the OLED can be improved.

[0062] Or refer Figure 10 The diagram shows another light-emitting functional layer provided in this application embodiment. The light-emitting functional layer 40 includes a first hole transport layer 4011, a first light-emitting layer 4021, a first hole blocking layer 4031, a first electron transport layer 4041, an N-type charge generation layer 406, a P-type charge generation layer 407, a second hole transport layer 4012, a second light-emitting layer 4022, a second hole blocking layer 4032, and a second electron transport layer 4042, which are stacked sequentially on the anode layer 20. It further includes a hole injection layer 408 located between the anode layer 20 and the hole transport layer 401, and an electron injection layer 405 located on the side of the second electron transport layer 4042 away from the anode layer 20. The cathode layer 50 is located on the side of the electron injection layer 405 away from the anode layer 20. Understandably, the light-emitting functional layer 40 provided in this application embodiment may include two light-emitting layers and a charge-generating layer located between the light-emitting layers. The two independent light-emitting layers are connected together by the intermediate charge-generating layer. Under the action of an external electric field, the charge-generating layer generates holes and electrons. The holes and electrons are injected into the hole transport layer and electron transport layer of the two adjacent light-emitting layers, respectively, and combine with electrons from the cathode layer 50 and holes from the anode layer 20 in the light-emitting layer, thereby causing the light-emitting layer to emit light. Among them, the N-type charge-generating layer 406 is used to inject electrons into the light-emitting layer connected to it, and the P-type charge-generating layer 407 is used to inject holes into the light-emitting layer connected to it. This ensures that the charge is effectively distributed to the light-emitting layer while improving the current efficiency of each light-emitting layer, thereby achieving the goal of improving the luminous efficiency of the OLED.

[0063] It should be noted that the light-emitting functional layer 40 provided in this application embodiment can be made of, for example, Figure 9 It consists of a light-emitting layer 402 as shown, and can also be composed of, for example, Figure 10 The two light-emitting layers shown are not specifically limited in this application. In some other embodiments, the light-emitting functional layer 40 provided in this application may also be composed of more light-emitting layers stacked together, and may also include more structural layers that optimize light emission, which needs to be specifically designed according to the actual application.

[0064] refer to Figure 11 The diagram shown is a structural schematic of an OLED provided in an embodiment of this application. The OLED provided in this embodiment can be composed of an anode block 21, a first portion 41, and a first cathode portion 51. Figure 11 The first part 41 shown is... Figure 9 Taking the light-emitting functional layer 40 as an example, the OLED provided in this embodiment further includes a cathode capping layer 53 covering the first cathode portion 51. The cathode capping layer 53 is located between the first cathode portion 51 and the inorganic module 611 and is used to form an optical microcavity, thereby improving the light extraction and color purity of the OLED through the microcavity effect. Figure 11 The dashed arrows indicate the light rays. The cathode cover film 53 allows the light emitted from the light-emitting layer 42 to be reflected multiple times between the first cathode portion 51 and the anode block 21, resulting in a strong interference effect. Optionally, the cathode cover film 53 provided in this embodiment can be made of a high refractive index material, and this application does not impose specific limitations on it.

[0065] refer to Figure 12 The diagram shown illustrates another OLED structure provided in this embodiment of the application. The OLED provided in this embodiment may further include a protective layer 54 located on the cathode cover film 53. The protective layer 54 is situated between the cathode cover film 53 and the inorganic film block 611, and at least serves to protect the cathode cover film 53. Optionally, the protective layer 54 may be made of lithium fluoride (LiF).

[0066] In some embodiments, the display panel 100 provided in this application can be fabricated as a CFOT (Color Filter On TFE) type panel, that is, a color filter is fabricated at the encapsulation structure of the display panel 100. See details. Figure 13The diagram shown is a structural schematic of another display panel 100 provided in this application embodiment. The display panel 100 provided in this application embodiment further includes a color resist layer 80. The color resist layer 80 is located on the side of the second inorganic film 62 facing away from the substrate. The color resist layer 80 includes a plurality of color resist portions 81, which are correspondingly disposed with the first portion 41. The color resist portions 81 are used to filter out the corresponding color light from the first portion 41. For example, the first portion 41 provided in this application embodiment includes a red light portion, a green light portion, and a blue light portion. The color resist portion 81 corresponding to the red light portion filters out the other color light through the red light, the color resist portion 81 corresponding to the green light portion filters out the other color light through the green light, and the color resist portion 81 corresponding to the blue light portion filters out the other color light through the blue light. This not only eliminates the need for a polarizer in the display panel 100, but also improves the display effect of the display panel 100 by filtering out stray light other than that emitted from the first portion 41.

[0067] When the display panel 100 provided in this embodiment is further encapsulated by an organic film 70 and a third inorganic film 63, the color resist layer 80 provided in this embodiment can be prepared before the organic film 70. (See reference...) Figure 14 The diagram shows a structural schematic of another display panel 100 provided in this application embodiment. The display panel 100 provided in this application embodiment further includes: an organic film 70 located on the side of the second inorganic film 62 facing away from the substrate 10; and a third inorganic film 63 located on the side of the organic film 70 facing away from the substrate 10. The color resist layer 81 is located between the second inorganic film 62 and the organic film 70. The technical solution provided in this application embodiment integrates the color resist layer 80 into the encapsulation structure and reuses the organic film 70 and the third inorganic film 63 as protective layers to protect the color resist layer 80. This eliminates the need to separately prepare a protective film layer, reducing the manufacturing process steps of the display panel 100 and lowering the manufacturing cost of the display panel 100. Furthermore, the second pixel definition layer 33 provided in this application embodiment is a black matrix, which blocks ambient light to improve the display effect of the display panel 100. In addition, this application embodiment reuses the second pixel definition layer 33 as a black matrix, so there is no need to prepare a black matrix structure separately, which further reduces the manufacturing process steps of the display panel 100 and reduces the manufacturing cost of the display panel 100.

[0068] Alternatively, when the display panel 100 provided in this application embodiment is further encapsulated by an organic film 70 and a third inorganic film 63, the color resist layer 80 provided in this application embodiment can also be prepared after the third inorganic film 63. (See reference) Figure 15The diagram shows a schematic representation of another display panel 100 provided in this application embodiment. The display panel 100 further includes an organic film 70 located on the side of the second inorganic film 62 facing away from the substrate 10; a third inorganic film 63 located on the side of the organic film 70 facing away from the substrate 10; a color resist portion 81 located on the side of the third inorganic film 63 facing away from the substrate 10; and the display panel 100 further includes a black matrix BM located on the side of the third inorganic film 63 facing away from the substrate 10, surrounding the color resist portion 81. The color resist portion 81 not only improves the display effect of the display panel 100 but also eliminates the need for a polarizer in the display panel 100. Furthermore, the black matrix BM blocks ambient light, further improving the display effect of the display panel 100.

[0069] It should be noted that the color resist section 81 provided in the embodiments of this application can be as follows: Figure 12 As shown, the color resist portion 81 is disposed between the second inorganic film 62 and the organic film 70. It can also be disposed on top of the third inorganic film 63, as shown in Figure 13. The fabrication position of the color resist portion 81 can be selected according to the actual application, thereby expanding the applicable types of the display panel 100. Furthermore, the color resist portion 81 provided in this embodiment can be set with different thicknesses according to the light emission wavelength of the first portion 41, thereby balancing the light emission efficiency of pixels of different colors and improving the light emission uniformity of the display panel 100. (Reference) Figure 16 The diagram shows a structural schematic of another display panel 100 provided in this application embodiment. The display panel 100 provided in this application embodiment may include a first part 41 with at least two light-emitting colors. That is, the first part 41 provided in this application embodiment includes at least a first color light part 411 and a second color light part 412. The wavelength of the first color light part 411 is greater than the wavelength of the second color light part 412. The color resist part 81 corresponding to the first color light part 411 is the first color light color resist part 811, and the color resist part 81 corresponding to the second color light part 412 is the second color light color resist part 812. In the direction Y perpendicular to the plane where the display panel 100 is located, the thickness d1 of the first color light color resist part 811 is greater than the thickness d2 of the second color light color resist part 812. Since the light efficiency is positively correlated with the thickness of the color resist film, that is, the thicker the color resist film, the greater the light efficiency, and vice versa, the thinner the color resist film, the color resist parts of different colors are set to different thicknesses, so as to balance the light output efficiency of the pixels corresponding to the first color light part 411 and the pixels corresponding to the second color light part 412, improve the uniformity of light output of the display panel 100 and avoid color deviation, thereby improving the display effect of the display panel 100.

[0070] Optionally, the first part 41 provided in this application embodiment may include a red light part, a green light part, and a blue light part. The red light part corresponds to a red light color resist part 81, the green light part corresponds to a green light color resist part 81, and the blue light part corresponds to a blue light color resist part 81. The wavelength of the red light part is longer than the wavelength of the green light part, and the wavelength of the green light part is longer than the wavelength of the blue light part. Therefore, in order to balance the light extraction efficiency of the pixels corresponding to the red, green, and blue light parts, this application embodiment can set the thickness of the red light color resist part to be greater than the thickness of the blue and green light color resist parts, while the thickness of the green light color resist part can be greater than the thickness of the blue light color resist part, or the thickness of the green light color resist part can be set to be equal to the thickness of the blue light color resist part. This requires specific design based on the actual application.

[0071] In some embodiments, the display panel 100 provided in this application may also have at least two refractive layers with different refractive indices corresponding to the first part 41, thereby improving the light emission effect of the pixels corresponding to the first part 41. See details. Figure 17 The diagram shows a structural schematic of another display panel 100 provided in this application embodiment. The display panel 100 provided in this application embodiment further includes: a first refractive layer 91, which is located on the side of the second inorganic film 62 away from the substrate 10. The first refractive layer 91 includes a plurality of first refractive portions 911, which are correspondingly disposed with the first portion 41. The refractive index of the first refractive layer 91 is different from that of the second inorganic film 62. Thus, by cooperating with the second inorganic film 62 and the first refractive layer 91, the light emission efficiency of the pixel at the first portion 41 can be improved, thereby improving the display effect of the display panel 100.

[0072] Optionally, the refractive index of the first refractive layer 91 provided in this embodiment is greater than the refractive index of the second inorganic film 62. (See reference...) Figure 18 The diagram shown is an optical path diagram provided in an embodiment of this application. Figure 18 The dashed arrows indicate the light rays. The light rays emitted from the first portion 41 are incident at the interface between the second inorganic film 62 and the first refractive portion 911. Since the refractive index of the second inorganic film 62 is lower than that of the first refractive portion 911, total internal reflection is reduced when light travels from a low-refractive-index medium to a high-refractive-index medium. This increases the amount of light emitted from the first refractive portion 911, improving the light extraction efficiency of the pixel at that location and thus enhancing the display effect of the display panel 100. In some embodiments, the refractive index of the second inorganic film 62 provided in this application may be the same as that of the first inorganic film 61.

[0073] refer to Figure 19The diagram shown is a structural schematic of another display panel 100 provided in this application embodiment. The display panel 100 provided in this application embodiment further includes a second refractive layer 92, located on the side of the first refractive layer 91 facing away from the substrate 10. The refractive index of the second refractive layer 92 is less than that of the first refractive layer 91. Therefore, through the cooperation of the second inorganic film 62, the first refractive layer 91, and the second refractive layer 92, the light emission efficiency of the pixels at the first portion 41 can be improved, thereby improving the display effect of the display panel 100. Specifically, as shown... Figure 20 The diagram shown is another optical path diagram provided in an embodiment of this application, wherein, Figure 19 The dashed arrows indicate the light rays. The light rays emitted from the first portion 41 are incident at the interface between the second inorganic film 62 and the first refractive layer 911. Since the refractive index of the second inorganic film 62 is lower than that of the first refractive layer 911, total internal reflection is reduced when light travels from a low-refractive-index medium to a high-refractive-index medium, thus increasing the amount of light rays exiting the first refractive layer 911. Furthermore, because the light is refracted at the interface between the second inorganic film 62 and the first refractive layer 911, the light rays incident at the interface between the first refractive layer 911 and the second refractive layer 92 tend towards the normal at that point. This reduces the amount of light rays with an angle greater than or equal to the critical angle incident at the interface between the first refractive layer 911 and the second refractive layer 92, thereby reducing total internal reflection at the interface and increasing the amount of light rays exiting the second refractive layer 92. This improves the light extraction efficiency of the pixel at that point, thereby enhancing the display effect of the display panel 100.

[0074] The second refractive layer 92 provided in this application embodiment can be reused as an organic film layer in the encapsulation structure of the display panel 100. To avoid the formation of moisture erosion channels at the second refractive layer 92, the display panel 100 provided in this application embodiment may further include a third inorganic film 63 covering the second refractive layer 92. See details. Figure 21 The diagram shown is a structural schematic of another display panel 100 provided in this application embodiment. The display panel 100 provided in this application embodiment further includes a third inorganic film 63, which is located on the side of the second refractive layer 92 opposite to the substrate 10. The refractive index of the third inorganic film 63 is less than the refractive index of the second refractive layer 92. 。 Understandable ，The third inorganic film 63 provided in this embodiment covers the second refractive layer 92, effectively blocking moisture erosion channels formed at the second refractive layer 92 and improving the encapsulation reliability of the display panel 100. Furthermore, the refractive index of the third inorganic film 63 is optimized to be lower than that of the second refractive layer 92, meaning light is essentially incident from a medium with a lower refractive index to a medium with a higher refractive index, thereby reducing total internal reflection at the interface between the third inorganic film 63 and the second refractive layer 92 (see reference...). Figure 18 (The illustration shows the principle of a lower refractive index medium incident on a higher refractive index medium), thereby increasing the amount of light emitted to the third inorganic film 63, improving the light extraction efficiency of the pixel at that location, and thus improving the display effect of the display panel 100. Optionally, the structural layer for improving pixel light efficiency provided in this embodiment can be a two-layer structure of the second inorganic film 62 and the first refractive layer 91; or a three-layer structure of the second inorganic film 62, the first refractive layer 91, and the second refractive layer 92; or a four-layer structure of the second inorganic film 62, the first refractive layer 91, the second refractive layer 92, and the third inorganic film 63; or more refractive layers can be provided to form more structural layers for improving pixel light efficiency. This application does not impose specific limitations on this.

[0075] In some embodiments, the refractive index difference between the first refractive portion 911 and the second refractive layer 92 provided in this application embodiment can be set to different differences according to the wavelength of the first portion 41, thereby balancing the light emission efficiency of pixels of different colors and improving the light emission uniformity of the display panel 100. (Continue to refer to...) Figure 18 As shown, the first part 41 provided in this application embodiment includes at least a first color light part 411 and a second color light part 412. The wavelength of the first color light part 411 is greater than the wavelength of the second color light part 412. The first refractive part 911 corresponding to the first color light part 411 is a first color light refractive part 911a, and the first refractive part 911 corresponding to the second color light part 412 is a second color light refractive part 911b. The difference between the refractive index of the first color light refractive part 911a and the refractive index of the second inorganic film 62 is greater than the difference between the refractive index of the second color light refractive part 911b and the refractive index of the second inorganic film 62. Since the light emission efficiency of a pixel is positively correlated with the difference in refractive index, that is, the greater the difference in refractive index, the greater the light emission efficiency, and vice versa, the smaller the difference in refractive index, the refractive index difference of the different color light refraction parts and the second inorganic film 62 is set to be different, so as to balance the light emission efficiency of the pixels corresponding to the first color light part 411 and the pixels corresponding to the second color light part 412, improve the uniformity of light emission of the display panel 100 and avoid color deviation, thereby improving the display effect of the display panel 100.

[0076] In other words, the wavelength of the first color light portion 411 provided in this application embodiment is greater than the wavelength of the second color light portion 412. In order to improve the light extraction efficiency of the pixel corresponding to the first color light portion 411 and thus balance it with the light extraction efficiency of the pixel corresponding to the second color light portion 412, the difference in refractive index between the first color light refraction portion 911a and the second inorganic film 62 needs to be set to be greater than the difference in refractive index between the second color light refraction portion 911b and the second inorganic film 62. Furthermore, since the refractive index of the first refractive layer 91 is greater than the refractive index of the second inorganic film 62, the larger the refractive index of the first refraction portion 911, the greater the difference in refractive index between the first refraction portion 911 and the second inorganic film 62. Therefore, the refractive index of the first color light refraction portion 911a provided in this application embodiment is greater than the refractive index of the second color light refraction portion 911b, which increases the difference in refractive index between the first color light refraction portion 911a and the second inorganic film 62, thereby improving the light extraction efficiency of the pixel corresponding to the first color light portion 411. Optionally, the first part 41 provided in the embodiments of this application may include a red light part, a green light part, and a blue light part. point, The red light portion corresponds to the first refractive part 911 as a red light refractive part, the green light portion corresponds to the first refractive part 911 as a green light refractive part, and the blue light portion corresponds to the first refractive part 911 as a blue light refractive part. The wavelength of the red light portion is longer than that of the green light portion, and the wavelength of the green light portion is longer than that of the blue light portion. Therefore, to balance the light extraction efficiency of the corresponding pixels in the red, green, and blue light portions, this embodiment can set the refractive index of the red light refractive part to be greater than the refractive indices of the blue and green light refractive parts. The refractive index of the green light refractive part can be greater than that of the blue light refractive part, or the refractive index of the green light refractive part can be set to be equal to that of the blue light refractive part. This requires specific design based on the actual application.

[0077] Based on the same inventive concept, this application also provides an electronic device 1000. (Reference) Figure 22 The diagram shown is a structural schematic of an electronic device 1000 provided in an embodiment of this application. The electronic device 1000 provided in this application includes the display panel 100 provided in any of the above embodiments.

[0078] In some embodiments, the electronic device 1000 provided in this application can be a mobile terminal, a laptop, a tablet computer, a computer, a wearable device, an in-vehicle display device, or other such devices, and this application does not impose any specific limitations on this.

[0079] In summary, embodiments of this application provide a display panel and an electronic device. The display panel includes a substrate; an anode layer located on the substrate, the anode layer including a plurality of anode blocks; a first pixel definition layer located on the side of the anode layer facing away from the substrate, the pixel definition layer including a first pixel opening corresponding to the anode blocks; an electrode connection layer located on the side of the pixel definition layer facing away from the substrate, the electrode connection layer including a second pixel opening corresponding to the first pixel opening; and a second pixel definition layer located on the side of the electrode connection layer facing away from the substrate, the second pixel defining... The layer includes a third pixel opening corresponding to the second pixel opening; a light-emitting functional layer, the light-emitting functional layer including a plurality of first portions and a plurality of second portions, the first portions being at least located in the first pixel opening, and the second portions at least covering the sidewall of the third pixel opening; a cathode layer, the cathode layer including a first cathode portion and a second cathode portion, the first cathode portion covering the first portion and extending to contact the electrode connection layer; a first inorganic film, the first inorganic film being located on the side of the cathode layer opposite to the substrate; and a second inorganic film, the second inorganic film being located on the side of the first inorganic film opposite to the substrate, and the second inorganic film covering the first inorganic film.

[0080] As can be seen from the above, the technical solution provided in this application includes a display panel with a superimposed structure of a first pixel definition layer, an electrode connection layer, and a second pixel definition layer. Based on this superimposed structure and the first pixel opening, second pixel opening, and third pixel opening formed by the superimposed structure, the light-emitting functional layer can be fabricated without a fine metal mask, thus avoiding the problems associated with the FMM process. Furthermore, the display panel also includes a second inorganic film covering the first inorganic film. Therefore, when a water vapor erosion channel appears at the first inorganic film, it can be covered and blocked by the second inorganic film, thereby reducing the risk of the display panel being susceptible to water vapor erosion and improving the packaging reliability of the display panel.

[0081] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to 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 of this application.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] In the embodiments of this application, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0084] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0085] In the embodiments of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A display panel, characterized in that, include: Substrate; An anode layer located on the substrate, the anode layer comprising a plurality of anode blocks; A first pixel definition layer is located on the side of the anode layer facing away from the substrate, and the pixel definition layer includes a first pixel opening corresponding to the anode block; An electrode connection layer is located on the side of the pixel definition layer opposite to the substrate, and the electrode connection layer includes a second pixel opening corresponding to the first pixel opening; The second pixel definition layer is located on the side of the electrode connection layer away from the substrate, and the second pixel definition layer includes a third pixel opening corresponding to the second pixel opening; A light-emitting functional layer, the light-emitting functional layer comprising a plurality of first portions and a plurality of second portions, wherein the first portions are at least located in the first pixel opening, and the second portions at least cover the sidewall of the third pixel opening; A cathode layer, the cathode layer comprising a first cathode portion and a second cathode portion, the first cathode portion covering the first portion and extending to contact the electrode connection layer; A first inorganic film is located on the side of the cathode layer opposite to the substrate; The second inorganic film is located on the side of the first inorganic film away from the substrate, and the second inorganic film covers the first inorganic film. The display panel further includes: a first refractive layer, the first refractive layer being located on the side of the second inorganic film facing away from the substrate, the first refractive layer including a plurality of first refractive portions, the first refractive portions being disposed corresponding to the first portions, wherein the refractive index of the first refractive layer is different from the refractive index of the second inorganic film; The first part includes at least a first color light part and a second color light part, wherein the wavelength of the first color light part is greater than the wavelength of the second color light part; the first refractive part corresponding to the first color light part is a first color light refractive part, and the first refractive part corresponding to the second color light part is a second color light refractive part; the difference between the refractive index of the first color light refractive part and the refractive index of the second inorganic film is greater than the difference between the refractive index of the second color light refractive part and the refractive index of the second inorganic film.

2. The display panel according to claim 1, characterized in that, The display panel includes: An organic film is located on the side of the second inorganic film opposite to the substrate, and a third inorganic film is located on the side of the organic film opposite to the substrate.

3. The display panel according to claim 1, characterized in that, The first inorganic membrane includes a plurality of inorganic membrane blocks, which cover the first cathode portion and extend to cover the second cathode portion on the side opposite to the second portion.

4. The display panel according to claim 1, characterized in that, The display panel includes: The display area and at least a border area surrounding a portion of the display area; The second inorganic film covers the display area and extends to cover the border area.

5. The display panel according to claim 4, characterized in that, The border area includes at least one barrier wall disposed along the direction surrounding the display area; The second inorganic film covers the display area and extends beyond the at least one barrier wall.

6. The display panel according to claim 1, characterized in that, The electrode connection layer exposes the surface of the first pixel definition layer on the side away from the substrate; Additionally, the second pixel definition layer extends from the bottom surface of the substrate side to the surface of the electrode connection layer opposite to the substrate side.

7. The display panel according to claim 1, characterized in that, The display panel also includes: A color resist layer is located on the side of the second inorganic film away from the substrate. The color resist layer includes a plurality of color resist portions, which are disposed corresponding to the first portion.

8. The display panel according to claim 7, characterized in that, The display panel also includes: An organic membrane, wherein the organic membrane is located on the side of the second inorganic membrane opposite to the substrate; A third inorganic film is located on the side of the organic film that is away from the substrate; The color resist portion is located between the second inorganic film and the organic film.

9. The display panel according to claim 8, characterized in that, The second pixel definition layer is a black matrix.

10. The display panel according to claim 7, characterized in that, The display panel also includes: An organic membrane, wherein the organic membrane is located on the side of the second inorganic membrane opposite to the substrate; A third inorganic film is located on the side of the organic film that is away from the substrate; The color resist portion is located on the side of the third inorganic film opposite to the substrate, and the display panel also includes a black matrix located on the side of the third inorganic film opposite to the substrate, the black matrix surrounding the color resist portion.

11. The display panel according to claim 7, characterized in that, The first part includes at least a first color light part and a second color light part, wherein the wavelength of the first color light part is greater than the wavelength of the second color light part; The color resist portion corresponding to the first color light portion is a first color light color resist portion, and the color resist portion corresponding to the second color light portion is a second color light color resist portion; In the direction perpendicular to the plane of the display panel, the thickness of the first color light resist is greater than the thickness of the second color light resist.

12. The display panel according to claim 1, characterized in that, The refractive index of the first refractive layer is greater than the refractive index of the second inorganic film.

13. The display panel according to claim 12, characterized in that, The display panel also includes: A second refractive layer is located on the side of the first refractive layer away from the substrate, wherein the refractive index of the second refractive layer is less than the refractive index of the first refractive layer.

14. The display panel according to claim 13, characterized in that, The display panel also includes: A third inorganic film is located on the side of the second refractive layer opposite to the substrate; The refractive index of the third inorganic film is less than that of the second refractive layer.

15. The display panel according to claim 1, characterized in that, The refractive index of the first refractive layer is greater than the refractive index of the second inorganic film; The refractive index of the first color light refracting part is greater than the refractive index of the second color light refracting part.

16. The display panel according to claim 1, characterized in that, At least one inorganic film in the display panel is a SiOx film, or a SiNx film, or a SiOx / SiNx laminated film.

17. An electronic device, characterized in that, The electronic device includes the display panel as described in any one of claims 1-16.

Images