Display panel and electronic device

Abstract

The present application provides a display panel and an electronic device, wherein the display panel includes a substrate, a light-emitting device and a pixel definition layer disposed on the substrate, and an encapsulation layer disposed on the side of the light-emitting device away from the substrate; the pixel definition layer has a plurality of opening areas distributed at intervals and a non-opening area disposed between adjacent opening areas; the opening area is configured to limit the light-emitting device; the encapsulation layer has a filter portion disposed opposite to the light-emitting device, and the filter portion is configured to transmit light waves of a preset wavelength band. The display panel provided by the present application can reduce the reflected light emitted by the light-emitting device by providing a shading portion in the encapsulation layer, and the shading portion allows light waves of a preset wavelength band to pass through, thereby reducing the overall reflectivity of the display panel, which can not only improve the display effect of the display panel, but also ensure the integrated black effect of the display panel when the screen is off.

Description

Technical Field

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

[0002] Organic Light-Emitting Diode (OLED) display panels have many advantages such as light weight, active light emission, fast response speed, large viewing angle, wide color gamut, high brightness and low power consumption. They have gradually become the third generation display technology after liquid crystal displays.

[0003] However, how to reduce the emission of reflected light from the electrode surface of the light-emitting device inside the display panel to reduce the overall reflectivity of the display panel has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] On the one hand, an embodiment of the present application provides a display panel, including a substrate, a light-emitting device and a pixel definition layer arranged on the substrate, and an encapsulation layer arranged on the side of the light-emitting device away from the substrate; the pixel definition layer has a plurality of spaced opening areas and a non-opening area arranged between adjacent opening areas; the opening area is configured to limit the light-emitting device; wherein the encapsulation layer has a filter portion arranged opposite to the light-emitting device, and the filter portion is configured to transmit light waves of a preset band.

[0005] On the other hand, an embodiment of the present application further provides an electronic device, which includes a housing assembly and a display panel connected to one side of the housing assembly; wherein the display panel is the display panel described in the aforementioned embodiment.

[0006] The display panel and electronic device provided in the embodiments of the present application, by setting a shading portion in the packaging layer, the shading portion allows light waves of a preset band to pass through, thereby reducing the reflected light emitted by the light-emitting device, thereby reducing the overall reflectivity of the display panel, which can not only improve the display effect of the display panel, but also ensure the integrated black effect of the display panel when the screen is off. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0008] Figure 1 is a schematic diagram of the structure of an electronic device in some embodiments of the present application;

[0009] Figure 2 yes Figure 1 A schematic diagram of the structural disassembly of the electronic device in the embodiment;

[0010] Figure 3 is a schematic diagram of the front structure of a display panel in some embodiments of the present application;

[0011] Figure 4 yes Figure 3 A schematic diagram of a cross-sectional structure of a display panel along the AA direction in the embodiment;

[0012] Figure 5 is a schematic diagram of a cross-sectional structure of a display panel in some other embodiments of the present application;

[0013] Figure 6 yes Figure 4 A schematic diagram of light emission of a display panel in an embodiment;

[0014] Figure 7 yes Figure 5 A schematic diagram of light emission of a display panel in an embodiment;

[0015] Figure 8 is a partial structural schematic diagram of a display panel in some other embodiments of the present application;

[0016] Fig. 9 It is a schematic diagram of the structural composition of mobile terminal devices in other embodiments of the present application. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0018] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] As used herein, "electronic devices" (or simply "terminals") include, but are not limited to, devices configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), a digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). Communication terminals configured to communicate via a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0020] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the structure of an electronic device 100 in some embodiments of the present application, Figure 2 yes Figure 1 Schematic diagram of the structural disassembly of the electronic device 100 in the embodiment.

[0021] The electronic device 100 provided in the embodiment of the present application may specifically be a mobile phone, a tablet computer, a laptop computer, and the like. The following description is given below with the electronic device 100 being a mobile phone. The electronic device 100 may include a housing assembly 10 and a display panel 20 connected to one side of the housing assembly 10. The housing assembly 10 is connected to the display panel 20, and together they enclose a housing space for the electronic device 100. The housing space of the electronic device 100 may be used to install electronic devices required by the electronic device 100, such as a battery, a photosensitive device, a circuit board, and a camera.

[0022] Specifically, the housing assembly 10 may include a middle frame 110 and a cover plate 120. The display panel 20 may be connected to one side of the middle frame 110, and the cover plate 120 may be connected to the other opposite side of the middle frame 110, that is, the display panel 20 and the cover plate 120 may be respectively disposed on opposite sides of the middle frame 110, thereby forming a housing space for the electronic device 100 together with the middle frame 110.

[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] like Figure 2 As shown, the middle frame 110 may include a middle plate 111 of an integral structure and a frame 112 surrounding at least part of the outer periphery of the middle plate 111, and the two may be integrally formed by injection molding, stamping molding, heat absorption molding and other processes. Among them, the frame 112 may be formed by the side wall of the middle plate 111 extending in the thickness direction of the middle plate 111, so that the two sides of the middle frame 110 that are relatively arranged can form corresponding open structures. The display panel 20 and the cover plate 120 may be respectively covered on the open structures on the opposite sides of the middle frame 110, thereby forming a housing space for the electronic device 100 together with the middle frame 110. In some embodiments, the middle plate 111 and the frame 112 may also be two independent structural members, and the two may be connected by one of the assembly methods such as snap-on, bonding and welding and a combination thereof. Alternatively, the middle frame 110 may also include only the frame 112.

[0025] In addition, the material of the middle frame 110 can be glass, metal, hard plastic, etc., so that the middle frame 110 has a certain structural strength. Among them, since the middle frame 110 is generally directly exposed to the external environment, the middle frame 110 can also have certain wear-resistant, corrosion-resistant and scratch-resistant properties, or a layer of functional materials for wear-resistant, corrosion-resistant and scratch-resistant is coated on the outer surface of the middle frame 110 (that is, the outer surface of the electronic device 100). In addition, in some embodiments, a corresponding brand logo (LOGO) can also be provided on the middle frame 110 to beautify the appearance of the electronic device 100 and improve brand recognition. Further, the middle frame 110 is arranged between the display panel 20 and the cover plate 120, and is respectively connected to the display panel 20 and the cover plate 120 to form the overall structural frame of the electronic device 100. In the structural application of the electronic device 100, the middle frame 110 is generally used to carry or fix the internal components such as the circuit board, battery, camera or photosensitive device of the electronic device 100.

[0026] See also Figure 3 and Figure 4 , Figure 3 is a schematic diagram of the front structure of the display panel 20 in some embodiments of the present application, Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the display panel 20 along the AA direction in the embodiment. The display panel 20 can be used to provide an image display function for the electronic device 100, and the display panel 20 can be covered on one side of the middle frame 110, and the two can be bonded and fixed by adhesive.

[0027] Specifically, the display panel 20 may include a substrate 210, a flat layer 220 disposed on the substrate 210, a light-emitting device 230 and a pixel definition layer 240 disposed on the flat layer 220, an encapsulation layer 250 disposed on the light-emitting device 230 and the pixel definition layer 240, a touch layer 260 disposed on the encapsulation layer 250, and a filter 270 disposed on the touch layer 260.

[0028] Among them, the substrate 210 can be configured as a driving circuit for integrating and driving the light-emitting device 230 to emit light, that is, the driving circuit can include a TFT (Thin Film Transistor) circuit. It can be understood that the TFT circuit is electrically connected to the light-emitting device 230, thereby driving the light-emitting device 230 to emit light. The source of the thin film field effect transistor is connected and conducted with the corresponding electrode of the light-emitting device 230. In other words, the source of the thin film field effect transistor and the corresponding electrode of the light-emitting device 230 are conducted through the flat layer 220. The flat layer 220 can be a single-layer structure or a multi-layer structure. The flat layer 220 can be made of organic materials, such as: photoresist, acrylic polymer, silicon-based polymer and other materials. Among them, the light-emitting device 230 can be conducted with the substrate 210 by opening a via (such as a metal via) on the flat layer 220.

[0029] It can be understood that the substrate 210 may include a base, a buffer layer disposed on the base, an active layer disposed on the buffer layer, a first gate insulating layer covering the active layer, a first gate disposed on the first gate insulating layer, a second gate insulating layer covering the first gate, a second gate disposed on the second gate insulating layer, an interlayer insulating layer covering the second gate, and a source and drain disposed on the interlayer insulating layer (not shown in the figure). Among them, the flat layer 220 is disposed on the interlayer insulating layer and covers the source and drain. It should be noted that the above-mentioned technical features of the substrate 210 are within the scope of understanding of those skilled in the art, so this application will not be repeated. In some embodiments, the first gate insulating layer and the second gate insulating layer can be combined into one gate insulating layer, in which case the first gate and the second gate can be combined into one gate. In other words, in some embodiments, the substrate 210 may include a first gate insulating layer and a first gate disposed on the first gate insulating layer; or, the substrate may include a second gate insulating layer and a second gate disposed on the second gate insulating layer. It should be noted that the terms "first", "second", and "third" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] The light emitting device 230 may include an anode 231 disposed on the flat layer 220, a cathode 232 spaced apart from the anode 231, and a light emitting layer 233 disposed between the anode 231 and the cathode 232. The anode 231 of the light emitting device 230 may be electrically connected to the substrate 210 through a metal via. The anode 231 may be made of materials such as indium tin oxide, indium zinc oxide, or zinc oxide. The anode 231 may be electrically connected to the source and drain of the substrate 210 through a metal via.

[0031] The pixel definition layer 240 may cover the flat layer 220, and may have an opening area 2401 exposing at least part of the anode 231, and the light-emitting layer 233 is at least partially located in the opening area 2401 of the pixel definition layer 240 and formed on the anode 231. The light-emitting layer 233 may include a small molecule organic material or a polymer molecule organic material, and may be a fluorescent light-emitting material or a phosphorescent light-emitting material, and may emit red light, green light, blue light, or white light, etc.; and according to different actual needs, in different examples, the light-emitting layer 233 may further include an electron injection layer, an electron transport layer, a hole injection layer, a hole transport layer and other functional layers. The cathode 232 covers the light-emitting layer 233, and the material of the cathode 232 includes but is not limited to one of Mg / Ag, Ca / Al, Mg / MgAg, Gd / Al, Al / Li, Sn / Al and Ag / Al alloys. Among them, the pixel definition layer 240 may be made of organic materials such as photoresist. Of course, in some embodiments, the material of the pixel definition layer 240 may include silicon nitride, silicon oxide or silicon oxynitride. It is understandable that the display panel 20 may include a plurality of light emitting devices 230 distributed in an array. The anodes 231 of each light emitting device 230 are independent of each other, and the cathodes 232 of each light emitting device 230 may be connected over the entire surface to serve as a common electrode of the plurality of light emitting devices 230.

[0032] Further, the pixel definition layer 240 may include a plurality of opening regions 2401 distributed in an array, and a non-opening region 2402 located between adjacent opening regions 2401. The anode 231 is disposed on the planar layer 220 and is at least partially exposed in the opening region 2401 of the pixel definition layer 240. The cathode 232 may cover the opening region 2401 and the non-opening region 2402 of the pixel definition layer 240. Optionally, there may be a plurality of opening regions 2401, and the plurality of opening regions 2401 are distributed at intervals, and the non-opening region 2402 is disposed between adjacent opening regions 2401.

[0033] The encapsulation layer 250 may be disposed on the side of the light emitting device 230 away from the substrate 210, that is, the encapsulation layer 250 may be disposed on the cathode 232 of the light emitting device 230. The encapsulation layer 250 may be a thin film encapsulation (TFE) layer structure, including a first inorganic layer 251 and a second inorganic layer 252 alternately stacked, and a buffer layer 253 disposed between the first inorganic layer 251 and the second inorganic layer 252. The first inorganic layer 251 and the second inorganic layer 252 may be a stacked combination of one or more of a silicon oxide (SiOx) layer, a silicon nitride (SiNx) layer, and a silicon oxynitride (SiON) layer. The buffer layer 253 may be formed by inkjet printing, and its material includes at least one of acrylic acid, hexamethyldisiloxane, acrylates, polycarbonates, and polystyrene.

[0034] It is understood that the stacked structure of the encapsulation layer 250 is not limited to the above embodiment. For example, in other embodiments, the first inorganic layer 251 or the second inorganic layer 252 may be provided with one or more layers respectively; the buffer layer 253 is provided between two adjacent first inorganic layers 251, or the buffer layer 253 is provided between two adjacent second inorganic layers 252, or the buffer layer 253 is provided between the adjacent first inorganic layer 251 and the second inorganic layer 252.

[0035] Optionally, the first inorganic layer 251 is disposed on the cathode 232 of the light emitting device 230 , and the second inorganic layer 252 is disposed on a side of the first inorganic layer 251 facing away from the cathode 232 .

[0036] The touch layer 260 is disposed on the side of the encapsulation layer 250 away from the substrate 210, and is used to respond to the user's touch operation and convert the corresponding touch operation into an electrical signal and transmit it to the processor of the electronic device 100, so that the electronic device 100 can respond to the user's touch operation. The touch layer 260 can be electrically connected to the substrate 210, so that the touch layer 260 can respond to the user's touch operation and convert the corresponding touch operation into an electrical signal and transmit it to the processor of the electronic device 100, so that the electronic device 100 can respond to the user's touch operation.

[0037] The filter 270 may be disposed on the touch layer 260, that is, on the side of the touch layer 260 facing away from the substrate 210. Of course, in other embodiments, when the display panel 20 removes the structural setting of the touch layer 260, the filter 270 may be disposed on the side of the encapsulation layer 250 facing away from the substrate 210.

[0038] Furthermore, the optical filter 270 may include a filter layer 271, a protective layer 272, and a cover layer 273 which are stacked in sequence. The filter layer 271 is configured to select the wavelength band light waves to be passed through, and block and filter other wavelength bands that are not desired to pass through. The protective layer 272 is arranged on the side of the filter layer 271 away from the substrate 210 to improve the flatness and light transmittance of the surface of the filter 270, and is required to have good heat resistance and strength to protect the filter film from damage. The cover layer 273 is arranged on the side of the protective layer 272 away from the filter layer 271 to improve the flatness and light transmittance of the surface of the filter 270, and at the same time ensure the heat resistance and strength of the filter 270.

[0039] The material of the cover layer 273 may be glass (such as ultra-thin glass UTG), polyethylene glycol terephthalate (PET), or polyimide (PI), etc. Optionally, the cover layer 273 may include a stacked UTG film and a PET film to improve the comprehensive performance of the cover layer 273.

[0040] The protective layer 272 is generally formed by coating a resin material on the filter layer 271. The material of the protective layer 272 can be photoresist, acrylic polymer, or silicon polymer.

[0041] The filter layer 271 may include a plurality of filter sections 2711 distributed in an array and a light shielding section 2712 disposed between adjacent filter sections 2711. One filter section 2711 is disposed corresponding to one light emitting device 230. Further, the plurality of filter sections 2711 may include a red filter section (R), a green filter section (G), and a blue filter section (B). Of course, in other embodiments, the plurality of filter sections 2711 may also include a white filter section. Different color filter sections 2711 allow visible light of the same color to pass through, while blocking other light from passing through.

[0042] In other words, the filter portion 2711 is disposed opposite to the opening area 2401 of the pixel definition layer 240, so that the light emitted by the light emitting layer 233 can be emitted through the filter portion 2711. The light shielding portion 2712 is disposed opposite to the non-opening area 2402 of the pixel definition layer 240 to block the light from passing through. The material of the light shielding portion 2712 can be made of an organic opaque material or an inorganic opaque material.

[0043] The opening area 2401 of the pixel definition layer 240 is used to limit the layout area of ​​the light emitting device 230. Based on the light emitting devices 230 distributed in an array, the non-opening area 2402 of the pixel definition layer 240 can be made of the same material as the light shielding portion 2712 to block the passage of light. Furthermore, the non-opening area 2402 of the pixel definition layer 240 can also prevent the light emitted by adjacent light emitting devices 230 from crosstalk, thereby eliminating the color mixing problem, improving the display contrast, and increasing the display color purity.

[0044] See also Figure 5 , Figure 5 3 is a schematic diagram of a cross-sectional structure of a display panel 30 in some other embodiments of the present application. The display panel 30 may include a substrate, a flat layer disposed on the substrate, a light emitting device 330 disposed on the flat layer, and a pixel definition layer 340. Among them, Figure 5 The substrate and the flat layer are not shown in the figure, and the relevant technical features of the substrate and the flat layer can refer to the above embodiments. Of course, in some other embodiments, in order to simplify the description, the substrate and the flat layer can be collectively referred to as the substrate, that is, the display panel 30 may include a substrate, a light-emitting device 330 and a pixel definition layer 340 disposed on the substrate, and an encapsulation layer 350 disposed on the side of the light-emitting device 330 away from the substrate.

[0045] Specifically, the pixel definition layer 340 may have a plurality of opening regions 3401 that are spaced apart and a non-opening region 3402 that is disposed between adjacent opening regions 3401. The relevant technical features of the opening regions 3401 and the non-opening regions 3402 may refer to the opening regions 2401 and the non-opening regions 2402 in the aforementioned embodiment, and thus will not be described in detail herein.

[0046] The light-emitting device 330 may include an anode 331 disposed on a substrate, a cathode 332 spaced apart from the anode 331, and a light-emitting layer 333 disposed between the anode 331 and the cathode 332. The anode 331 of the light-emitting device 330 may be electrically connected to the substrate through a metal via. The anode 331 may be made of materials such as indium tin oxide, indium zinc oxide, or zinc oxide. Among them, the anode 331 may be electrically connected to the source and drain of the substrate through a metal via. Among them, the anode 331 is at least partially disposed in the opening area 3401 of the pixel definition layer 340, that is, the opening area 3401 of the pixel definition layer 340 is configured to limit the light-emitting device 330. The light-emitting layer 333 is partially located in the opening area 3401 of the pixel definition layer 340, and the other part extends to the non-opening area 3402 to increase the light-emitting area of ​​the light-emitting layer 333. The cathode 332 may cover the opening area 3401 and part of the non-opening area 3402 of the pixel definition layer 340 , that is, part of the cathode 332 may cover the opening area 3401 , and another part extends to the non-opening area 3402 and covers the light-emitting layer 333 .

[0047] The encapsulation layer 350 may be disposed on the side of the light emitting device 330 away from the substrate, that is, the encapsulation layer 350 may be disposed on the cathode 332 of the light emitting device 330. The encapsulation layer 350 may have a filter portion 3501 disposed opposite to the light emitting device 330, and the filter portion 3501 covers the light emitting layer 333, so that the light emitted by the light emitting layer 333 can be emitted through the filter portion 3501. Different filter portions 3501 may allow light waves of different wavelengths to pass through, while blocking light waves of other wavelengths from passing through, so that the display panel 30 can display a colorful picture. That is, the filter portion 3501 is configured to pass through light waves of a preset wavelength band. For example, the filter portion 3501 may include a first filter portion that allows red light to pass through, a second filter portion that allows blue light to pass through, and a third filter portion that allows green light to pass through. Of course, in other embodiments, the filter portion 3501 may also include other filter portions that allow light waves of other colors to pass through, and there is no specific limitation on this.

[0048] Optionally, the projection of the filter 3501 on the pixel definition layer 340 covers the projection of the light emitting layer 333 on the pixel definition layer 340, so that as much light as possible emitted by the light emitting layer 333 can be emitted through the filter 3501. When the light emitted by a light emitting device 330 is red light, the filter 3501 arranged opposite to the light emitting device allows red light to pass through; when the light emitted by a light emitting device 330 is blue light, the filter 3501 arranged opposite to the light emitting device allows blue light to pass through; when the light emitted by a light emitting device 330 is green light, the filter 3501 arranged opposite to the light emitting device allows green light to pass through.

[0049] It can be understood that the filter part 3501 can reduce the reflected light emitted from the surface of the cathode 332 and the anode 331, thereby reducing the overall reflectivity of the display panel 30, which can not only improve the display effect of the display panel 30, but also maintain the integrated black effect of the display panel 30 when the screen is off. Among them, the specific functions and materials of the filter part 3501 and the filter part 2711 are basically the same, that is, it can be understood that Figure 4 The filter section 2711 in the embodiment is moved to the encapsulation layer 350 to form the filter section 3501. Compared with the technical solution of setting the filter section 2711 in the filter 270, the filter section 3501 is set in the encapsulation layer 350 in this embodiment, so that the distance between the filter section 3501 and the anode 331 and the cathode 332 in the light emitting direction of the display panel 30 is reduced, so as to reduce the emission of reflected light from the surfaces of the cathode 332 and the anode 331, and thus the overall reflectivity of the display panel 30 can be reduced.

[0050] In one embodiment, the encapsulation layer 350 may further include a first inorganic layer 351 and a second inorganic layer 352 which are stacked, and the filter unit 3501 is disposed between the first inorganic layer 351 and the second inorganic layer 352. The first inorganic layer 351 is disposed on a side of the second inorganic layer 352 close to the light emitting device 230. Optionally, the filter unit 3501 may be disposed on a side of the first inorganic layer 351 close to the light emitting device 330, or may be embedded in the first inorganic layer 351, or may also be disposed on a side of the first inorganic layer 351 away from the light emitting device 330. Of course, in other embodiments, the filter unit 3501 may also be disposed on other film layers of the encapsulation layer 350.

[0051] Combined with reference Figure 6 and Figure 7 , Figure 6 yes Figure 4 A schematic diagram of light emission of the display panel 20 in the embodiment, Figure 7 yes Figure 5 A schematic diagram of light emission of the display panel 30 in the embodiment.

[0052] like Figure 6 As shown, the light emitted by the light emitting device 230 includes a first light ray X1 and a second light ray X2, the first light ray X1 has a first angle θ1 with the light emitting direction X0 of the display panel 20, and the second light ray X2 has a second angle θ2 with the light emitting direction X0 of the display panel 20. The light emitting direction X0 of the display panel 20 may be a direction perpendicular to the display surface of the display panel 20.

[0053] Further, the first light X1 can be emitted through the filter portion 2711, and the second light X2 can reach the shading portion 2712 but cannot be emitted or will be greatly attenuated. Among them, the first angle θ1 is smaller than the second angle θ2. It can be understood that the range of the first angle θ1 can limit the field of view of the display panel 20, that is, the larger the range of the first angle θ1, the wider the field of view of the display panel 20. However, based on the existence of the shading portion 2712, when the first angle θ1 exceeds a certain range, the light emitted by the light-emitting device 230 reaches the shading portion 2712 and is blocked or greatly attenuated, so that there is a color deviation between the small-angle light and the large-angle light emitted by the light-emitting device 230, which makes it difficult for the display panel 20 to balance the color deviation problem of the viewing angle.

[0054] Optionally, the first angle θ1 may be 15°-45°, and the second angle θ2 may be 45°-90°. That is, when the light emitting angle of the light emitting device 230 is greater than 45°, the light with the light emitting angle greater than 45° will irradiate the light shielding portion 2712 and cannot be emitted or will be greatly attenuated.

[0055] like Figure 7 As shown, Figure 4The filter unit 2711 in the embodiment is moved to Figure 5 The encapsulation layer 350 in the embodiment is used to form the filter part 3501, that is, the filter part 3501 replaces the buffer layer 253 in the encapsulation layer 250 to form the encapsulation layer 350. Among them, the buffer layer 253 can be formed by inkjet printing, and its material includes at least one of acrylic acid, hexamethyldisiloxane, acrylates, polycarbonates and polystyrene. Among them, the buffer layer 253 is usually formed by inkjet printing, and its thickness is usually more than 10 microns. The filter part 3501 can be formed by developing, exposing and coating, so that the thickness of the filter part 3501 can be 0.5-8 microns. For example, the thickness of the filter part 3501 can be 1 micron, 2 microns, 3 microns, 4 microns, 5 microns, 6 microns, or 7 microns. In summary, the filter part 3501 is thinner than the buffer layer 253, thereby shortening the distance between the shading part 2712 and the light-emitting device 330, and then effectively improving the problem of brightness attenuation at a large viewing angle to balance the color deviation of the viewing angle.

[0056] Specifically, the light emitted by the light emitting device 330 includes a first light X1, a second light X2, and a third light X3. The first light X1 has a first angle θ1 with the light emitting direction X0 of the display panel 30, the second light X2 has a second angle θ2 with the light emitting direction X0 of the display panel 30, and the third light X3 has a third angle θ3 with the light emitting direction X0 of the display panel 30. The light emitting direction X0 of the display panel 30 may be a direction perpendicular to the display surface of the display panel 30. Figure 6 As shown, the second light X2 cannot be emitted or will be greatly attenuated due to being blocked by the light shielding portion 2712. The second angle θ2 can be 45°-90°, that is, when the light emitting angle of the light emitting device 230 is greater than 45°, the light with a light emitting angle greater than 45° will be irradiated to the light shielding portion 2712 and cannot be emitted or will be greatly attenuated.

[0057] like Figure 7 As shown, the third light X3 cannot be emitted or will be greatly attenuated due to being blocked by the light shielding portion 2712. The third angle θ3 can be 70°-90°, that is, when the light output angle of the light emitting device 330 is greater than 70°, the light with a light output angle greater than 70° will be irradiated to the light shielding portion 2712 and cannot be emitted or will be greatly attenuated.

[0058] In summary, by replacing the buffer layer 253 in the encapsulation layer 250 with the filter portion 2711 in the filter 270 to form the encapsulation layer 350, the angle range where light cannot be emitted can be reduced, thereby reducing the brightness attenuation of light with a large viewing angle. It can be understood that Figure 6 and Figure 7The angle range of the light that cannot be emitted or blocked is only exemplified, but other ranges are not limited. For example, in other embodiments, the second angle θ2 may be 60°-90°, and the third angle θ3 may be 80°-90°. Figure 7 , the range of the first angle θ1 and the partial range of the second angle θ2 can jointly define the viewing angle of the display panel 30. Figure 6 Example, Figure 7 The color shift phenomenon between the small-angle light and the large-angle light emitted by the light emitting device 330 in the embodiment is improved to balance the color shift of the viewing angle.

[0059] In one embodiment, the shading portion 2712 may be made of a black metal material to block light from passing through. Compared with organic opaque materials, the shading portion 2712 made of a black metal material has a thinner thickness while having the same shading effect. For example, the shading portion 2712 made of a conventional organic opaque material generally has a thickness of 1.5 microns to 2.5 microns to achieve a better shading and light blocking effect; while the shading portion 2712 made of a black metal material can achieve a better shading and light blocking effect when its thickness does not exceed 1 micron. Optionally, the thickness of the shading portion 2712 may be 300 nanometers, 400 nanometers, 500 nanometers, 600 nanometers, or 700 nanometers, etc.

[0060] It is understandable that the brightness attenuation defect of large-angle light can be further improved by reducing the thickness of the light shielding portion 2712. In addition, in order to reduce the reflectivity of the black metal surface, the black metal surface can be ashed to meet the reflectivity requirements.

[0061] The display panel 30 provided in this embodiment can reduce the angle range where light cannot be emitted to reduce the brightness attenuation of light with a large viewing angle by disassembling the filter layer 271 of the filter 270 into the filter portion 3501 disposed in the encapsulation layer 350 and the light shielding portion 2712 disposed on the encapsulation layer 350. At the same time, by moving the filter portion 3501 in the filter 270 to the encapsulation layer 350, the distance between the filter portion 3501 and the light emitting device 330 in the light emitting direction of the display panel 30 is reduced, thereby reducing the emission of reflected light on the surface of the light emitting device 330, thereby reducing the overall reflectivity of the display panel 30.

[0062] In one embodiment, the display panel 30 may further include a protective layer 370, which is disposed on the side of the encapsulation layer 350 away from the light emitting device 330 and covers the light shielding portion 3712, so as to improve the flatness and light transmittance of the surface of the display panel 30, and is required to have good heat resistance and strength to protect the display panel 30 from damage. Among them, the technical features of the protective layer 370 that are not fully described in detail can refer to the protective layer 272 in the aforementioned embodiment.

[0063] At present, the light-emitting device 230 of the display panel 20 mainly uses a fine metal mask (FMM) to evaporate the organic light-emitting material onto the substrate through multiple openings of the fine metal mask. In order to ensure the yield of the product, most manufacturers will set the size of the opening of the fine metal mask to be larger than the size of the pixel opening, which will limit the improvement of the aperture ratio of the display panel 20.

[0064] Based on this, the present application also provides a display panel to solve the above technical problems.

[0065] See also Figure 8 , Figure 8 3 is a partial structural diagram of a display panel 30 in some other embodiments of the present application. The display panel 30 may include a substrate, a flat layer disposed on the substrate, a light emitting device 330 and a pixel definition layer 340 disposed on the flat layer, and an encapsulation layer 350 disposed on the side of the light emitting device 330 away from the substrate. Figure 8 The relevant technical features of the display panel 30 not shown in the figure can refer to the display panel in the aforementioned embodiment, so they will not be described in detail.

[0066] The pixel definition layer 340 may have a plurality of opening regions 3401 that are spaced apart and a non-opening region 3402 that is disposed between adjacent opening regions 3401. The relevant technical features of the opening regions 3401 and the non-opening regions 3402 may refer to the opening regions 2401 and the non-opening regions 2402 in the aforementioned embodiment, and thus will not be described in detail herein. The non-opening regions 3402 may be provided with an isolation portion 301 that surrounds the periphery of the opening regions 3401.

[0067] Specifically, the isolation portion 301 may be an annular structure and is disposed around the periphery of the opening region 3401. The light emitting device 330 is located in the annular hollow region of the isolation portion 301, that is, the isolation portion 301 is disposed around the periphery of the light emitting device 330 to separate two adjacent light emitting devices 330, so that each light emitting device 330 can be formed separately on the opening region 3401 of the pixel definition layer 340.

[0068] There may be a plurality of light emitting devices 330, and the plurality of light emitting devices 330 are spaced apart and distributed on a plurality of opening regions 3401. That is, each light emitting device 330 may constitute each sub-pixel of the pixel panel 30, and the plurality of light emitting devices 330 form a plurality of spaced apart sub-pixels.

[0069] It can be understood that the isolation portion 301 can separate several light-emitting devices 330 from each other, so that each light-emitting device 330 can be formed separately, thereby flexibly controlling the opening area 3401 corresponding to different sub-pixels, and further controlling the pixel aperture ratio to improve the pixel density.

[0070] As mentioned above, when a metal mask is used to make the sub-pixels of a display panel, the opening size of the mask is usually larger than the pixel opening size, which restricts the further improvement of the pixel opening rate. At the same time, the metal mask process has been difficult to meet the demand when the pixel density is getting higher and higher. This is because as the pixel density increases, the distance between the pixel light-emitting areas becomes smaller and smaller, and the screen color mixing produced by evaporation will become more and more serious. In particular, for the three sub-pixels of red (R), green (G), and blue (B) arranged in a traditional strip, the length of the opening area of ​​the metal mask corresponding to each sub-pixel is relatively long, and the linearity control is difficult, which is prone to color mixing. In the traditional dot-shaped (Slot) RGB arrangement, during the production process of the opening area of ​​the metal mask, a certain amount of metal raw material must be left between the opening areas of each Slot as a connecting bridge, which leads to a reduction in the area of ​​the sub-pixel opening area, thereby affecting the opening rate of the display panel.

[0071] The present application sets an isolation portion on the pixel definition layer so that when sub-pixels are formed by vapor deposition, the opening size of the mask and the pixel opening size can remain basically consistent. The isolation portion is used to isolate two adjacent sub-pixels, thereby avoiding color mixing and improving the pixel opening ratio.

[0072] In one embodiment, the isolating portion 301 may be a conductor, and the cathode 332 of the light emitting device 330 may be overlapped on the isolating portion 301 to achieve electrical connection with the isolating portion 301. Specifically, the isolating portion 301 may be an annular structure, and the edge of the cathode 332 may be overlapped on the inner annular surface of the isolating portion 301. It is understandable that Figure 4 In the display panel 20 shown, the anode 231 is arranged separately, and the RGB sub-pixels are evaporated separately using a fine metal mask, and then the cathode 232 is evaporated on the entire surface. In this way, since the cathode is laid on the entire surface, for a larger size panel, the voltage drop between the edge and the center of the screen is larger. If the negative voltage signal is introduced from the edge to the cathode 232, the signal strength distribution is uneven, which will cause different display effects at the edge and the middle of the screen.

[0073] The present application sets an isolation part 301 so that each light emitting device 330 is formed separately in the annular hollow area of ​​the isolation part 301, that is, the cathode 332 of each light emitting device 330 is isolated from each other. Further, the cathode 332 is electrically connected to the isolation part 301, and the isolation part 301 is electrically connected to the substrate through a metal via, so that the negative voltage signal can be introduced into the cathode 332 of different light emitting devices 330 respectively, thereby improving the uniformity of the signal strength and ensuring the consistency of the display effect at the edge and the middle of the display panel 30.

[0074] Furthermore, based on the independence of the cathodes 332 of different light-emitting devices 330, when evaporating the cathodes of different sub-pixels, the thickness of each cathode 332 can be adjusted to improve the light-emitting efficiency. Optionally, based on the fact that the light-emitting device 330 can emit light of different colors (such as RGB primary colors), the thickness of the cathode 332 of the light-emitting device 330 of different colors can be different.

[0075] Optionally, the light emitting device 330 may include a first sub-pixel 330a, a second sub-pixel 330b, and a third sub-pixel 330c that are spaced apart. The first sub-pixel 330a is used to emit blue light, the second sub-pixel 330b is used to emit green light, and the third sub-pixel 330c is used to emit red light. The light emitting area of ​​the first sub-pixel 330a is larger than the light emitting area of ​​the second sub-pixel 330b, and the light emitting area of ​​the second sub-pixel 330b is larger than the light emitting area of ​​the third sub-pixel 330c.

[0076] Correspondingly, the opening areas of the opening region 3401 on the pixel definition layer 340 may be different. That is, the opening region 3401 of the pixel definition layer 340 may include a first opening 3401a for limiting the first sub-pixel 330a, a second opening 3401b for limiting the second sub-pixel 330b, and a third opening 3401c for limiting the third sub-pixel 330c. The opening area of ​​the first opening 3401a is larger than the opening area of ​​the second opening 3401b, and the opening area of ​​the second opening 3401b is larger than the opening area of ​​the third opening 3401c.

[0077] Further, the first sub-pixel 330a has a first cathode 332a covering the first opening 3401a, the second sub-pixel 330b has a second cathode 332b covering the second opening 3401b, and the third sub-pixel 330c has a third cathode 332c covering the third opening 3401c. In the light emitting direction of the display panel 30, the thickness of the first cathode 332a is less than the thickness of the second cathode 332b, and the thickness of the second cathode 332b is less than the thickness of the third cathode 332c.

[0078] It is understandable that when the thickness of the cathode is too large, its transmittance will be affected, and thus the luminous efficiency of the display panel will be affected. Therefore, it is necessary to make the cathode have a smooth and flat surface at a thinner thickness to improve the transmittance of the cathode, and thus improve the luminous efficiency of the display panel. However, the light emitted by sub-pixels of different colors will have different light-emitting effects when passing through cathodes of the same thickness. Figure 4 In the embodiment shown, the cathode 232 is vapor-deposited on the entire surface, and its thickness is generally about 15 nanometers. The thickness of the cathode 232 in different areas cannot be independently designed according to different sub-pixels. Figure 8 In the illustrated embodiment, the isolating portion 301 separates the light emitting device 330 into a plurality of independent sub-pixels arranged at intervals, and the thickness of the cathode 332 of each sub-pixel can be independently set. For example, the thickness of the first cathode 332a can be 10 nanometers, the thickness of the second cathode 332b can be 12 nanometers, and the thickness of the third cathode 332c can be 14 nanometers. Of course, in other embodiments, the thickness of the first cathode 332a can be no more than 10 nanometers, the thickness of the second cathode 332b can be no more than 12 nanometers, and the thickness of the third cathode 332c can be no more than 14 nanometers. In this embodiment, the light emitting device 330 is separated into a plurality of sub-pixels arranged at intervals by the isolating portion 301, so that the cathode thickness of each sub-pixel can be set differently, thereby improving the consistency of the brightness of the display panel.

[0079] See again Figure 8 , there is a first distance between the end surface of the isolation part 301 away from the pixel definition layer 340 and the pixel definition layer 340, and there is a second distance between the surface of the encapsulation layer 350 away from the pixel definition layer 340 and the pixel definition layer 340, wherein the first distance is not less than the second distance. It can be understood that by setting the height of the isolation part 301 protruding from the pixel definition layer 340 to be not less than the height of the encapsulation layer 350 protruding from the pixel definition layer 340, the isolation part 301 can completely isolate the adjacent encapsulation layer 350 and the light-emitting device 330.

[0080] In one embodiment, the display panel 30 may further include a metal portion 370 disposed on the end of the isolation portion 301 away from the pixel definition layer 340, and the end surface area of ​​the metal portion 370 close to the isolation portion 301 is larger than the end surface area of ​​the isolation portion 301 close to the metal portion 370. In this way, the metal portion 370 has an eaves-like edge protruding from the isolation portion 301, and the eaves-like edge can completely isolate adjacent light-emitting devices and adjacent encapsulation layers when manufacturing light-emitting devices and encapsulation layers.

[0081] Specifically, the anode layer can be formed on the flat layer by a graphic process such as etching. The material of the light-emitting layer can be vertically evaporated using a mask, and the evaporation source uses a surface evaporation source, the purpose of which is to improve material utilization, reduce material costs, and achieve better film uniformity. Among them, the distance between the evaporation source and the mask in the evaporation process generally does not exceed 300mm to ensure the yield. The cathode is prepared by line source evaporation, and there is a certain angle between the nozzle and the mask in the line source, which can be 2 to 15°. This method can increase the shadow effect of the cathode, so that the cathode and the inner annular surface of the isolation part can be effectively overlapped and the cathodes of adjacent pixels can be disconnected.

[0082] The cross-sectional shape of the isolation portion may be a trapezoid, that is, the end surface area of ​​the isolation portion away from the pixel definition layer is smaller than the end surface area of ​​the isolation portion close to the pixel definition layer, so that the inner annular surface of the isolation portion is inclined, which is conducive to the overlap of the cathode material.

[0083] In one embodiment, the metal part can be reused as the touch layer in the above embodiment, wherein the metal part can constitute the touch electrode of the touch layer and be distributed in a plurality of metal grids to avoid the opening area on the pixel definition layer, so that the light emitted by the light emitting layer can pass through the touch layer.

[0084] In one embodiment, the metal part and the isolation part may be made of different materials and both are conductors. The different etching rates of different metal materials may be used to form metal parts and isolation parts with different radial distances. The etching rate of the isolation part material is greater than the etching plastic of the metal part material, so that the metal part after etching has an eaves-like structure protruding from the isolation part.

[0085] See again Figure 8 , the light shielding portion 2712 is disposed on the end face of the metal portion 360 away from the isolation portion 301. The relevant technical features of the light shielding portion 2712 can refer to the aforementioned embodiment. That is, the display panel 30 provided in this embodiment can reduce the angle range where light cannot be emitted to reduce the brightness attenuation of light with a large viewing angle by disassembling the filter layer 271 of the filter 270 into the filter portion 3501 disposed in the encapsulation layer 350 and the light shielding portion 2712 disposed on the isolation portion 301 / metal portion 360.

[0086] Furthermore, the shading portion 2712 can be made of a ferrous metal material to block light from passing through. Compared with organic opaque materials, the shading portion 2712 made of a ferrous metal material has a thinner thickness while having the same light-blocking effect. For example, the shading portion 2712 made of a conventional organic opaque material generally has a thickness of 1.5 microns to 2.5 microns to achieve a better light-blocking effect; while the shading portion 2712 made of a ferrous metal material can achieve a better light-blocking effect when its thickness does not exceed 1 micron. Optionally, the thickness of the shading portion 2712 can be 300 nanometers, 400 nanometers, 500 nanometers, 600 nanometers or 700 nanometers, etc.

[0087] It is understandable that the brightness attenuation defect of large-angle light can be further improved by reducing the thickness of the light shielding portion 2712. In addition, in order to reduce the reflectivity of the black metal surface, the black metal surface can be ashed to meet the reflectivity requirements.

[0088] As mentioned above, the protective layer 370 is disposed on the side of the encapsulation layer 350 away from the light emitting device 330, and covers the surface of the light shielding portion 3712 away from the pixel definition layer 340, so as to improve the flatness and light transmittance of the surface of the display panel 30, and is required to have good heat resistance and strength to protect the display panel 30 from damage. In other words, the protective layer 370 is disposed on the surface of the light shielding portion 2712 away from the pixel definition layer 340, and is filled in the metal grid formed by the metal portion to cover the surface of the encapsulation layer 350 away from the pixel definition layer 340.

[0089] The display panel and electronic device provided by the embodiments of the present application can reduce the reflected light emitted by the light-emitting device by setting a shading portion in the encapsulation layer, and the shading portion allows light waves of a preset wavelength to pass through, thereby reducing the overall reflectivity of the display panel, which can not only improve the display effect of the display panel, but also ensure the integrated black effect of the display panel when the screen is off. At the same time, the shading portion formed by coating has a thinner thickness than the buffer layer formed by inkjet printing, which can reduce the angle range of the light emitted by the light-emitting device being blocked, and further reduce the brightness attenuation of the light of the display panel at a large viewing angle, thereby improving the color deviation phenomenon between the small angle relationship and the large angle light emitted by the light-emitting device.

[0090] In addition, the display panel and electronic device provided in the embodiment of the present application, by setting an isolation portion on the pixel definition layer, each light-emitting device can be independently packaged, which can not only improve the pixel aperture ratio and pixel density, but also ensure the uniformity of the cathode signal intensity, thereby ensuring the consistency of the display effect of the display panel. In addition, by setting an isolation portion on the pixel definition layer, each light-emitting device can be independently packaged, so that the cathode thickness in different sub-pixels can be set differently, thereby improving the consistency of the brightness of the display panel.

[0091] Furthermore, in some other embodiments of the present application, a mobile terminal device 900 is provided. Fig. 9 , Fig. 9 It is a schematic diagram of the structure of a mobile terminal device in other embodiments of the present application. The mobile terminal device can be a mobile phone, a tablet computer, a laptop computer, a wearable device, etc. The mobile phone is used as an example in the diagram of this embodiment. The structure of the terminal device 900 may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the display panel 20 in the above embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980, and a power supply 990. Among them, the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected to the processor 980; the power supply 990 is used to provide power to the entire terminal device 900.

[0092] Specifically, the RF circuit 910 is used to receive and send signals; the memory 920 is used to store data instruction information; the input unit 930 is used to input information, which may specifically include a touch panel 931 and other input devices 932 such as operation buttons; the display unit 940 may include a display panel 941 (i.e., the display panel 20 in the above embodiment); the sensor 950 includes an infrared sensor, a laser sensor, etc., for detecting user approach signals, distance signals, etc.; the speaker 961 and the microphone (or microphone) 962 are connected to the processor 980 through the audio circuit 960 for receiving and sending sound signals; the wifi module 970 is used to receive and transmit wifi signals, and the processor 980 is used to process data information of the mobile terminal device. For the relevant technical features of the display module, please refer to the relevant description of the above display module embodiment, which will not be described in detail here.

[0093] It should be noted that the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0094] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: A substrate, a light emitting device and a pixel definition layer disposed on the substrate, and an encapsulation layer disposed on a side of the light emitting device away from the substrate; the pixel definition layer has a plurality of opening areas distributed at intervals and a non-opening area disposed between adjacent opening areas; the opening area is configured to limit the light emitting device; Wherein, the encapsulation layer has a filter portion arranged opposite to the light-emitting device, and the filter portion is configured to transmit light waves in a preset wavelength band.

2. The display panel according to claim 1, characterized in that: The encapsulation layer further includes a first inorganic layer and a second inorganic layer which are stacked; wherein the filter portion is disposed between the first inorganic layer and the second inorganic layer.

3. The display panel according to claim 1, characterized in that: The thickness of the filter part is 0.5-8 microns.

4. The display panel according to claim 1, characterized in that: The light-emitting device includes an anode, a light-emitting layer and a cathode, wherein the light-emitting layer is arranged between the anode and the cathode; the anode is at least partially arranged in the opening area; wherein the projection of the filter portion projected on the pixel definition layer covers the projection of the light-emitting layer projected on the pixel definition layer.

5. The display panel according to claim 4, characterized in that: An isolation portion is disposed on the non-opening area, and the isolation portion is disposed around the periphery of the light-emitting device to separate two adjacent light-emitting devices; wherein the isolation portion is disposed around the periphery of the encapsulation layer.

6. The display panel according to claim 5, characterized in that: The isolation part is a conductor, and the cathode is overlapped on the isolation part to achieve electrical connection with the isolation part.

7. The display panel according to claim 6, characterized in that: The light emitting device comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which are arranged at intervals, the light emitting area of ​​the first sub-pixel is larger than the light emitting area of ​​the second sub-pixel, and the light emitting area of ​​the second sub-pixel is larger than the light emitting area of ​​the third sub-pixel; The first sub-pixel has a first cathode, the second sub-pixel has a second cathode, and the third sub-pixel has a third cathode; wherein, in the light emitting direction of the display panel, the thickness of the first cathode is smaller than the thickness of the second cathode, and the thickness of the second cathode is smaller than the thickness of the third cathode.

8. The display panel according to claim 5, characterized in that: There is a first distance between the end surface of the isolation portion away from the pixel definition layer and the pixel definition layer, and there is a second distance between the surface of the encapsulation layer away from the pixel definition layer and the pixel definition layer; wherein the first distance is not less than the second distance.

9. The display panel according to claim 8, characterized in that: The display panel further includes a metal portion disposed on an end of the isolation portion away from the pixel definition layer, and an end surface area of ​​the metal portion close to the isolation portion is larger than an end surface area of ​​the isolation portion close to the metal portion.

10. The display panel according to claim 9, characterized in that: The display panel further includes a light shielding portion, which is disposed on an end surface of the metal portion away from the isolation portion.

11. The display panel according to claim 10, characterized in that: The material of the shading portion is a ferrous metal material; and the thickness of the shading portion does not exceed 1 micrometer.

12. The display panel according to claim 10, characterized in that the display panel further comprises a protective layer arranged on a side of the encapsulation layer away from the light-emitting device, and the protective layer covers a surface of the light-shielding portion away from the pixel definition layer.

13. An electronic device, characterized in that: It comprises a shell component and a display panel connected to one side of the shell component; wherein the display panel is the display panel according to any one of claims 1-12.

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