Display panel, manufacturing method of display panel and electronic equipment

Abstract

According to the display panel and the electronic equipment, the light-transmitting opening is formed in the isolation structure, so that the collection effect of an under-screen optical device is guaranteed, and the pixel driving circuit is arranged below the isolation structure and / or the isolation opening and avoids the light-transmitting opening. Thus, the wiring space of the pixel driving circuit is increased, the pixel driving circuit can be arranged near the light-transmitting opening and electrically connected with the adjacent light-emitting device, the number of the light-emitting devices needing to be driven by a single pixel driving circuit at the same time can be reduced, and the load uniformity of the pixel driving circuit at different positions is improved.

Description

Technical Field

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

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

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

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the object of the present application is to provide a display panel, the display panel comprising a first display area and a second display area at least partially surrounding the first display area, the transmittance of the first display area is greater than the transmittance of the second display area, and the display panel comprises:

[0005] A substrate; the substrate comprises an array function layer, and the array function layer comprises a pixel driving circuit;

[0006] An isolation structure located on one side of the array functional layer, the isolation structure enclosing an isolation opening and a light-transmitting opening; the orthographic projection of the isolation structure and / or the isolation opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate at least partially overlap, and the orthographic projection of the light-transmitting opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate are at least partially staggered;

[0007] The light emitting device is at least partially located in the isolation opening.

[0008] In some possible implementations, an orthographic projection of the pixel driving circuit on the substrate is located within an orthographic projection of the isolation structure and / or the isolation opening on the substrate.

[0009] In some possible implementations, the display panel includes a first display area and a second display area at least partially surrounding the first display area; at least part of the light-transmitting openings are located in the first display area, and the isolation openings are located in the first display area and the second display area;

[0010] The pixel driving circuit at least partially located in the first display area is electrically connected to the light emitting device located in the first display area;

[0011] Preferably, at least a portion of the pixel driving circuit located in the second display area is electrically connected to the light emitting device located in the second display area.

[0012] In some possible implementations, at least one pixel driving circuit located in the first display area is electrically connected to at most two light-emitting devices located in the first display area;

[0013] Preferably, the light emitting devices connected to the same pixel driving circuit emit the same light color;

[0014] Preferably, the same pixel driving circuit is connected to at most two of the light emitting devices which emit light of the same color and are most adjacent to each other.

[0015] In some possible implementations, the light emitting devices adjacent to each other arranged along a first direction emit light of the same color, and the light emitting devices adjacent to each other arranged along a second direction emit light of different colors; and the first direction intersects the second direction.

[0016] In some possible implementations, the orthographic projection of the pixel driving circuit located in the first display area on the substrate is located between the orthographic projections of two adjacent columns of the light emitting devices on the substrate; the first direction intersects with the second direction;

[0017] In some possible implementations, the light-emitting device includes a first electrode, a light-emitting unit, and a second electrode stacked in a direction away from the substrate, and the first electrode is electrically connected to the pixel driving circuit.

[0018] In some possible implementations, an orthographic projection of the pixel driving circuit on the substrate is adjacent to or at least partially overlaps with an orthographic projection of a light-emitting device connected to the pixel driving circuit on the substrate.

[0019] Preferably, the first direction is perpendicular to the second direction.

[0020] In some possible implementations, at least a portion of the isolation structure is conductive, and the second electrode is electrically connected to the isolation structure.

[0021] In some possible implementations, the array functional layer includes a first functional area and a second functional area, the first functional area includes the pixel driving circuit, and the second functional area includes a light-transmitting film layer and / or a light-transmitting connecting wiring.

[0022] In some possible implementations, the display panel further includes a packaging unit located on a side of the light-emitting device and the isolation structure away from the substrate, and the packaging unit extends from the pixel opening to a side of the isolation structure away from the substrate;

[0023] Preferably, there is a gap between at least two adjacent packaging units, and the gap is located on a side of the isolation structure away from the substrate.

[0024] In some possible implementations, the display panel further includes a first encapsulation layer and a second encapsulation layer located on a side of the encapsulation unit and the isolation structure away from the substrate;

[0025] Preferably, the material of the encapsulation unit and the second encapsulation layer includes inorganic material; and the material of the first encapsulation layer includes organic material.

[0026] In some possible implementations, the second encapsulation layer fills the light-transmitting opening.

[0027] In some possible implementations, the isolation structure includes a supporting portion and a shielding portion located on a side of the supporting portion away from the substrate; an orthographic projection of an end of the supporting portion close to the isolation opening on the substrate is located within an orthographic projection of an end of the shielding portion close to the isolation opening on the substrate;

[0028] Preferably, the etching resistance of the supporting portion is weaker than that of the shielding portion;

[0029] Preferably, the material of the supporting portion includes aluminum, and / or the material of the shielding portion includes titanium.

[0030] In some possible implementations, a side of the support portion close to the light-transmitting opening is flush with a side of the shielding portion close to the isolation opening.

[0031] In some possible implementations, the isolation structure further includes a receiving portion located between the support portion and the substrate;

[0032] Preferably, the orthographic projection of one end of the receiving portion close to the isolation opening on the substrate is located within the orthographic projection of one end of the shielding portion close to the isolation opening on the substrate;

[0033] Preferably, the material of the receiving portion includes molybdenum.

[0034] In some possible implementations, a side of the receiving portion close to the light-transmitting opening, a side of the supporting portion close to the light-transmitting opening, and a side of the shielding portion close to the isolation opening are flush.

[0035] The present application also provides a method for manufacturing a display panel, the method comprising:

[0036] Providing a substrate; the substrate comprises an array function layer, and the array function layer comprises a pixel driving circuit;

[0037] An isolation structure is provided on one side of the array functional layer, and the isolation structure encloses an isolation opening and a light-transmitting opening; the orthographic projection of the isolation structure and / or the isolation opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate at least partially overlap, and the orthographic projection of the light-transmitting opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate are at least partially staggered;

[0038] A light emitting device is provided, wherein at least a portion of the light emitting device is located in the isolation opening.

[0039] In some possible implementations, the light-transmitting opening is formed on the isolation structure in a manner including:

[0040] The isolation structure is punched to form the light-transmitting opening.

[0041] Another object of the present application is to provide an electronic device, which includes the display panel provided in the present application, or includes a display panel manufactured by the display panel manufacturing method provided in the present application.

[0042] In some possible implementations, the electronic device further includes an under-screen optical device disposed on a side of the display panel away from a light emitting surface thereof and corresponding to a position of the light-transmitting opening.

[0043] Compared with the prior art, this application has the following beneficial effects:

[0044] The present application provides a display panel and an electronic device, which ensures the collection effect of the optical device under the screen by setting a light-transmitting opening on the isolation structure, and sets the pixel driving circuit under the isolation structure and / or the isolation opening and avoids the light-transmitting opening. In this way, the wiring space of the pixel driving circuit is increased, so that the pixel driving circuit can be set near the light-transmitting opening and electrically connected to the adjacent light-emitting device, which can reduce the number of light-emitting devices that need to be driven simultaneously by a single pixel driving circuit, and improve the load uniformity of the pixel driving circuit at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 One of the schematic diagrams of a display panel in the related art;

[0047] Figure 2 The second schematic diagram of a display panel in the related art;

[0048] Figure 3 One of the cross-sectional schematic diagrams of the display panel provided in this embodiment;

[0049] Figure 4 A schematic diagram of a region of a display panel provided in this embodiment;

[0050] Figure 5 A second cross-sectional schematic diagram of a display panel provided in this embodiment;

[0051] Figure 6 One of the schematic diagrams of pixel arrangement and light-transmitting openings of the display panel provided in this embodiment;

[0052] Figure 7 The second schematic diagram of the pixel arrangement and light-transmitting opening of the display panel provided in this embodiment;

[0053] Figure 8 The third cross-sectional schematic diagram of the display panel provided in this embodiment;

[0054] Fig. 9 One of the schematic diagrams of the isolation structure provided in this embodiment;

[0055] Fig.10 A fourth cross-sectional schematic diagram of the display panel provided in this embodiment;

[0056] Fig.11 A second schematic diagram of the isolation structure provided in this embodiment;

[0057] Fig.12 A fifth cross-sectional schematic diagram of the display panel provided in this embodiment;

[0058] Fig.13 A sixth cross-sectional schematic diagram of the display panel provided in this embodiment;

[0059] Fig.14 A schematic flow chart of the steps of the method for manufacturing a display panel provided in this embodiment.

[0060] Icon: 110-substrate; 111-substrate; 112-array functional layer; 120-first electrode; 130-pixel defining layer; 140-isolation structure; 910-isolation opening; 920-light-transmitting opening; 141-supporting portion; 142-shielding portion; 143-receiving portion; 800-light-emitting device; 150-light-emitting unit; 160-second electrode; 801-first light-emitting device; 802-second light-emitting device; 803-third light-emitting device; 2101-pixel driving circuit; 210-first functional area; 220-second functional area; AA1-first display area; AA2-second display area; AA3-transition area. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0062] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0063] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0064] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0065] It should be noted that, in the absence of conflict, different features in the embodiments of the present application may be combined with each other.

[0066] In some OLED display panels, part of the display panel needs to have both display function and light transmittance, so that under-screen optical devices (such as under-screen light sensors, under-screen cameras, under-screen optical fingerprint sensors, etc.) can be set under the display panel. Figure 1 Such a display panel generally includes a first display area AA1 having light transmittance and display function and a second display area AA2 having only display function. In the first display area AA1, a light transmittance gap is required between adjacent light emitting devices, and the array functional film layer under the light emitting device is also required to be light transmittance.

[0067] Since the pixel driving circuit used to drive the light-emitting device in the array functional layer has no light transmittance or has a weak light transmittance, please refer to Figure 2 The pixel driving circuit 2101 for driving the light-emitting device 800 in the first display area AA1 can only be set in the transition area AA3 between the first display area AA1 and the second display area AA2, and is connected to the anode of the light-emitting device 800 in the first display area AA1 through an additional signal line 700 (such as a transparent indium tin oxide line).

[0068] In this case, since the area of ​​the transition area AA3 is limited and it is not possible to accommodate too many pixel driving circuits 2101, one pixel driving circuit 2101 located in the transition area AA3 usually needs to drive three or more light-emitting devices 800 located in the first display area AA1. Since the second display area AA2 does not need to be light-transmissive, the pixel driving circuit 2101 driving the light-emitting device 800 in the second display area AA2 can be arranged under the light-emitting device 800 in the second display area AA2. Therefore, the arrangement space of the pixel driving circuit 2101 located in the second display area AA2 is larger, and usually one pixel driving circuit 2101 located in the first display area AA1 only needs to drive one light-emitting device 800 located in the second display area AA2. This will cause the loads of the pixel driving circuits 2101 in the first display area AA1 and the second display area AA2 to be different, reducing the uniformity of the display effect of the display panel.

[0069] In view of this, the present embodiment provides a solution that can improve the display uniformity of the display panel. The solution provided by the present embodiment is described in detail below.

[0070] See also Figure 3 , Figure 3 This is a schematic diagram of a display panel provided in this embodiment. The display panel may include a substrate 110 , an isolation structure 140 and a light emitting device 800 .

[0071] In this embodiment, the substrate 110 may include an array function layer 112. For example, the substrate 110 includes a substrate 111 and an array function layer 112 located on one side of the substrate 111.

[0072] The material of the substrate 111 may include a rigid material, such as glass; or the material of the substrate 110 may include a flexible material, such as polyimide (Polyimide, Pi).

[0073] The array function layer 112 is located on one side of the substrate 111 , and the array function layer 112 includes a pixel driving circuit 2101 .

[0074] For example, the array function layer 112 may include a plurality of film layer structures stacked in sequence in a direction away from the substrate 111, such as a buffer layer, an active layer, a plurality of conductive layers, a plurality of insulating layers, and a planarization layer, etc. The plurality of film layer structures of the array function layer 112 may form a plurality of thin film transistors (TFTs) at different positions, and the thin film transistors may cooperate with each other to form a plurality of pixel driving circuits 2101.

[0075] Optionally, the array functional layer 112 includes a first functional area 210 and a second functional area 220 , and the first functional area 210 includes a pixel driving circuit 2101 . Due to the presence of opaque or weakly transparent wiring in the pixel driving circuit 2101 , the first functional area 210 as a whole may be opaque or weakly transparent.

[0076] The opaque or weakly light-transmitting wiring that forms the pixel driving circuit 2101 and / or connects the pixel driving circuit 2101 can avoid or bypass some areas to form a second functional area 220, that is, the second functional area 220 includes other light-transmitting film layers (such as insulating layers, planarization layers, etc.) and / or some light-transmitting connecting wiring (such as indium tin oxide wiring).

[0077] It should be noted that Figure 2 The figure only shows a schematic diagram of the pixel driving circuit 2101. According to actual driving requirements, the pixel driving circuit 2101 may also have a capacitor and a plurality of thin film transistors. For example, the display panel provided in this embodiment may adopt a 7T1C, 8T1C or other forms of pixel driving circuit 2101, which is not specifically limited in this embodiment.

[0078] The isolation structure 140 is located on one side of the array functional layer 112, and the isolation structure 140 encloses an isolation opening 910 and a light-transmitting opening 920. Among them, patent applications CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072 record related technical solutions of isolation structures (or partition structures or isolation columns), and their contents are incorporated into this application by reference for reference.

[0079] Optionally, the display panel provided in this embodiment may further include a pixel defining layer 130 located between the isolation structure 140 and the array function layer 112, the pixel defining layer 130 includes a pixel opening, and the orthographic projection of the pixel opening on the substrate 110 is located within the orthographic projection of the isolation opening 910 on the substrate 110. That is, the pixel opening is connected to the isolation opening 910.

[0080] At least part of the light emitting device 800 is located in the isolation opening 910 . That is, the light emitting device 800 is disposed in the isolation opening 910 , and the light emitting device 800 is not disposed in the light-transmitting opening 920 .

[0081] In this embodiment, the orthographic projection of the light-transmitting opening 920 on the substrate 110 is at least partially offset from the orthographic projection on the pixel driving circuit 2101, that is, the orthographic projection of the light-transmitting opening 920 on the substrate 110 is at least partially overlapped with the orthographic projection of the second functional area 220 on the substrate 110, so that external light can pass through the light-transmitting opening 920 and the second functional area 220 to irradiate under the display panel.

[0082] In this embodiment, the orthographic projection of the isolation structure 140 and / or the isolation opening 910 on the substrate 110 at least partially overlaps with the orthographic projection of the pixel driving circuit 2101 on the substrate 110. In this way, the blocking of external light by the opaque or weakly transparent pixel driving circuit 2101 can be reduced.

[0083] Optionally, the orthographic projection of the pixel driving circuit 2101 on the substrate 110 is located within the orthographic projection of the isolation structure 140 and / or the isolation opening 910 on the substrate 110. That is, the orthographic projection of the pixel driving circuit 2101 on the substrate 110 does not exceed the orthographic projection of the isolation structure 140 and / or the isolation opening 910 on the substrate 110.

[0084] Based on the above design, in this embodiment, a light-transmitting opening 920 is provided on the isolation structure 140 to ensure the collection effect of the optical device under the screen, and the pixel driving circuit 2101 is provided under the isolation structure 140 and / or the isolation opening 910 and avoids the light-transmitting opening 920. In this way, the wiring space of the pixel driving circuit 2101 is increased, so that the pixel driving circuit 2101 can be provided near the light-transmitting opening 920 and electrically connected to the adjacent light-emitting device 800, which can reduce the number of light-emitting devices 800 that need to be driven simultaneously by a single pixel driving circuit 2101, and improve the load uniformity of the pixel driving circuit 2101 at different positions.

[0085] For some possible implementations, see Figure 4 The display panel includes a first display area AA1 and a second display area AA2 at least partially surrounding the first display area AA1. At least part of the light-transmitting opening 920 is located in the first display area AA1, and the isolation opening 910 is located in the first display area AA1 and the second display area AA2.

[0086] That is, please see again Figure 3 , the first display area AA1 includes an isolation opening 910 and a light-transmitting opening 920, and the first display area AA1 has a display function and light transmittance; see Figure 5 The second display area AA2 includes an isolation opening 910 , and the second display area AA2 may not be light-transmissive.

[0087] At least part of the pixel driving circuit 2101 located in the first display area AA1 is electrically connected to the light emitting device 800 located in the first display area AA1. That is, in this embodiment, in the array function layer 112, at least part of the pixel driving circuit 2101 used to drive the light emitting device 800 located in the first display area AA1 can be arranged in the first display area AA1.

[0088] At least part of the pixel driving circuit 2101 located in the second display area AA2 is electrically connected to the light emitting device 800 located in the second display area AA2. That is, in this embodiment, in the array functional layer 112, at least part of the pixel driving circuit 2101 used to drive the light emitting device 800 located in the second display area AA2 can be arranged in the second display area AA2.

[0089] For some possible implementations, see Figure 6 and Figure 7 The display panel provided in this embodiment may adopt a Real Stripe pixel arrangement mode. Specifically, the light-emitting colors of adjacent light-emitting devices 800 arranged along the first direction D1 are the same, and the light-emitting colors of adjacent light-emitting devices 800 arranged along the second direction D2 are different.

[0090] For example, the light emitting device 800 includes a first light emitting device 801, a second light emitting device 802, and a third light emitting device 803, which emit light of different colors. The light emitting devices in the same column arranged along the first direction D1 emit the same color, and along the second direction D2, the first light emitting device 801, the second light emitting device 802, and the third light emitting device 803 are arranged in sequence and alternately repeated.

[0091] In this case, the orthographic projection of the pixel driving circuit 2101 located in the first display area AA1 on the substrate 110 is located between the orthographic projections of two adjacent columns of light emitting devices 800 on the substrate 110 .

[0092] For example, the orthographic projection of the light-transmitting opening 920 on the substrate 110 may be located between the orthographic projections of two adjacent light-emitting devices 800 having different luminous colors on the substrate 110. In the first direction D1, the light-transmitting openings 920 may be arranged at intervals, and the orthographic projection of the first functional area 210 on the substrate 110 may be located between the orthographic projections of two adjacent light-transmitting openings 920 on the substrate 110 in the first direction D1.

[0093] In some possible implementations, in the display panel provided in this embodiment, the pixel driving circuit 2101 can be arranged under the isolation structure 140 of the first display area AA1, and the increased space for arranging the pixel driving circuit 2101 can be used to arrange more pixel driving circuits 2101 in the first display area AA1, thereby reducing the number of light-emitting devices 800 that need to be driven by a single pixel driving circuit 2101 for driving the light-emitting device 800 in the first display area AA1. Therefore, at least one pixel driving circuit 2101 located in the first display area AA1 is electrically connected to at most two light-emitting devices 800 located in the first display area AA1.

[0094] That is, a pixel driving circuit 2101 located in the first display area AA1 can only drive one pixel. Figure 6 As shown, in this way, the loads of the pixel driving circuit 2101 in the first display area AA1 and the second display area AA2 can be made substantially consistent, thereby improving the display uniformity of the display panel.

[0095] Alternatively, one pixel driving circuit 2101 located in the first display area AA1 can drive two light emitting devices 800 located in the first display area AA1. Figure 7 In this way, the load difference of the pixel driving circuit 2101 in the first display area AA1 and the second display area AA2 can be reduced, and the display uniformity of the display panel can be improved.

[0096] Optionally, the light emitting devices 800 connected to the same pixel driving circuit 2101 emit light of the same color.

[0097] Optionally, the same pixel driving circuit 2101 is connected to at most two light-emitting devices 800 that emit light of the same color and are most adjacent to each other.

[0098] In some possible implementations, the light emitting device 800 includes a first electrode 120, a light emitting unit 150, and a second electrode 160 stacked in a direction away from the substrate 110. Optionally, the first electrode 120 may be an anode, and the second electrode 160 may be a cathode.

[0099] The first electrode 120 can be directly electrically connected to the pixel driving circuit 2101, that is, the pixel driving circuit 2101 driving the first display area AA1 does not need to use additional indium tin oxide wiring to connect to the light-emitting device 800 of the first display area AA1. In this way, the load uniformity of the pixel driving circuit 2101 in the first display area AA1 and the second display area AA2 can be improved.

[0100] In addition, the second electrode 160 may be connected to a common voltage supply circuit through the isolation structure 140 , and when there is a potential difference between the first electrode 120 and the second electrode 160 , the light emitting unit 150 located between the first electrode 120 and the second electrode 160 is driven to emit light.

[0101] In some possible implementations, the orthographic projection of the pixel driving circuit 2101 on the substrate 110 is adjacent to or at least partially overlaps with the orthographic projection of the light emitting device 800 connected to the pixel driving circuit 2101 on the substrate 110. That is, in the first display area AA1, the pixel driving circuit 2101 drives the light emitting device 800 adjacent to it.

[0102] In some possible implementations, at least a portion of the isolation structure 140 is conductive, and the second electrode 160 is electrically connected to the isolation structure 140 .

[0103] In some possible implementations, the display panel further includes a packaging unit located on a side of the light-emitting device 800 and the isolation structure 140 away from the substrate 110 , and the packaging unit extends from the pixel opening to a side of the isolation structure 140 away from the substrate 110 .

[0104] Optionally, there is a gap between at least two adjacent packaging units, and the gap is located on a side of the isolation structure 140 away from the substrate 110 .

[0105] For some possible implementations, see Figure 8 The display panel further includes a first encapsulation layer and a second encapsulation layer located on a side of the encapsulation unit and the isolation structure 140 away from the substrate 110 .

[0106] Optionally, the materials of the encapsulation unit and the second encapsulation layer include inorganic materials, and the material of the first encapsulation layer includes organic materials.

[0107] For example, the encapsulation unit and the second encapsulation layer may be formed by chemical vapor deposition (CVD), and the third encapsulation layer may be formed by ink-jet printing (IJP).

[0108] In some possible implementations, the second encapsulation layer fills the light-transmitting opening 920, and the second encapsulation layer can be planarized to a certain extent. Optionally, the second encapsulation layer and the third encapsulation layer are light-transmitting.

[0109] For some possible implementations, see Fig. 9 The isolation structure 140 includes a supporting portion 141 and a shielding portion 142 located on the side of the supporting portion 141 away from the substrate 110, and the orthographic projection of one end of the supporting portion 141 close to the isolation opening 910 on the substrate 110 is located within the orthographic projection of one end of the shielding portion 142 close to the isolation opening 910 on the substrate 110.

[0110] Optionally, the etching resistance of the support portion 141 is weaker than the etching resistance of the shielding portion 142 .

[0111] Optionally, the material of the support portion 141 includes aluminum, and / or the material of the shielding portion 142 includes titanium.

[0112] Optionally, see Figure 3 The orthographic projection of one end of the support portion 141 close to the light-transmitting opening 920 on the substrate 110 is located within the orthographic projection of one end of the shielding portion 142 close to the light-transmitting opening 920 on the substrate 110. For example, both the light-transmitting opening 920 and the isolation opening 910 can be formed by etching.

[0113] Alternatively, see Fig.10 , a side of the support portion 141 close to the light-transmitting opening 920 is flush with a side of the shielding portion 142 close to the light-transmitting opening 920. For example, the light-transmitting opening 920 can be formed by punching the isolation structure 140 (eg, laser punching).

[0114] For some possible implementations, see Fig.11 The isolation structure 140 further includes a receiving portion 143 located between the supporting portion 141 and the substrate 110 .

[0115] Optionally, the orthographic projection of one end of the receiving portion 143 close to the isolation opening 910 on the substrate 110 is located within the orthographic projection of one end of the shielding portion 142 close to the isolation opening 910 on the substrate 110 .

[0116] Optionally, the material of the receiving portion 143 includes molybdenum.

[0117] Optionally, see Fig.12 The orthographic projection of one end of the receiving portion 143 close to the light-transmitting opening 920 on the substrate 110 is located within the orthographic projection of one end of the shielding portion 142 close to the light-transmitting opening 920 on the substrate 110. For example, both the light-transmitting opening 920 and the isolation opening 910 can be formed by etching.

[0118] Alternatively, see Fig.13 , the side of the receiving portion 143 close to the light-transmitting opening 920, the side of the supporting portion 141 close to the light-transmitting opening 920 and the side of the shielding portion 142 close to the light-transmitting opening 920 are flush. For example, the light-transmitting opening 920 can be formed by punching the isolation structure 140 (eg, laser punching).

[0119] The present application also provides a method for manufacturing a display panel, which may include the following steps.

[0120] Step S110 , providing a substrate 110 , the substrate 110 includes an array function layer 112 , and the array function layer 112 includes a pixel driving circuit 2101 .

[0121] Step S120, an isolation structure 140 is provided on one side of the array function layer 112, and the isolation structure 140 encloses an isolation opening 910 and a light-transmitting opening 920. The orthographic projection of the isolation structure 140 and / or the isolation opening 420 on the substrate 110 and the orthographic projection of the pixel driving circuit 2101 on the substrate at least partially overlap, and the orthographic projection of the light-transmitting opening 920 on the substrate 110 and the orthographic projection of the pixel driving circuit 2101 on the substrate 110 are at least partially staggered.

[0122] Step S130 , disposing the light emitting device 800 , wherein at least a portion of the light emitting device 800 is located in the isolation opening 910 .

[0123] In some possible implementations, both the isolation opening 910 and the light-transmitting opening 920 may be formed by etching.

[0124] In some other possible implementations, the light-transmitting opening 920 may be formed by punching the isolation opening 140 , for example, by forming the light-transmitting opening 920 by laser punching.

[0125] The present application also provides an electronic device, which includes the display panel provided in the present application, or includes a display panel manufactured by the method for manufacturing a display panel provided in the present application. The electronic device may include a mobile phone, a tablet computer, a smart wearable device, a television, a laptop computer, a monitor, and other devices with a display function.

[0126] In some possible implementations, the electronic device further includes an under-screen optical device disposed on a side of the display panel away from the light emitting surface thereof and corresponding to the position of the light-transmitting opening 920. Optionally, the under-screen optical device may include an under-screen light sensor, an under-screen camera, and an under-screen fingerprint sensor.

[0127] In summary, the display panel and electronic device provided by the present application ensure the collection effect of the optical device under the screen by setting a light-transmitting opening on the isolation structure, and set the pixel driving circuit under the isolation structure and / or the isolation opening and avoid the light-transmitting opening. In this way, the wiring space of the pixel driving circuit is increased, so that the pixel driving circuit can be set near the light-transmitting opening and electrically connected to the adjacent light-emitting device, which can reduce the number of light-emitting devices that need to be driven simultaneously by a single pixel driving circuit, and improve the load uniformity of the pixel driving circuit at different positions.

[0128] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0129] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A display panel, comprising a first display area and a second display area at least partially surrounding the first display area, wherein the transmittance of the first display area is greater than the transmittance of the second display area, characterized in that: The display panel comprises: A substrate; the substrate comprises an array function layer, and the array function layer comprises a pixel driving circuit; An isolation structure located on one side of the array functional layer, the isolation structure enclosing an isolation opening and a light-transmitting opening; the orthographic projection of the isolation structure and / or the isolation opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate at least partially overlap, and the orthographic projection of the light-transmitting opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate are at least partially staggered; The light emitting device is at least partially located in the isolation opening.

2. The display panel according to claim 1, characterized in that: The orthographic projection of the pixel driving circuit on the substrate is located within the orthographic projection of the isolation structure and / or the isolation opening on the substrate.

3. The display panel according to claim 1 or 2, characterized in that: The isolation opening is located in the first display area and the second display area; The pixel driving circuit at least partially located in the first display area is electrically connected to the light emitting device located in the first display area; Preferably, at least a portion of the pixel driving circuit located in the second display area is electrically connected to the light emitting device located in the second display area.

4. The display panel according to claim 3, characterized in that: At least one pixel driving circuit located in the first display area is electrically connected to at most two light emitting devices located in the first display area; Preferably, at least one of the pixel driving circuits located in the first display area is electrically connected to one of the light emitting devices located in the first display area; Preferably, the light emitting devices connected to the same pixel driving circuit emit the same light color; Preferably, the same pixel driving circuit is connected to at most two of the light emitting devices which emit light of the same color and are most adjacent to each other.

5. The display panel according to claim 3, characterized in that: The adjacent light emitting devices arranged along a first direction emit light of the same color, and the adjacent light emitting devices arranged along a second direction emit light of different colors; the first direction intersects the second direction.

6. The display panel according to claim 1, characterized in that: The orthographic projection of the pixel driving circuit located in the first display area on the substrate is located between the orthographic projections of two adjacent columns of the light emitting devices on the substrate; the first direction intersects with the second direction.

7. The display panel according to claim 1, characterized in that: The light emitting device comprises a first electrode, a light emitting unit and a second electrode which are stacked and arranged in a direction away from the substrate, and the first electrode is electrically connected to the pixel driving circuit.

8. The display panel according to claim 1, characterized in that: The orthographic projection of the pixel driving circuit on the substrate is adjacent to or at least partially overlaps with the orthographic projection of the light emitting device connected to the pixel driving circuit on the substrate; Preferably, the first direction is perpendicular to the second direction.

9. The display panel according to claim 6, characterized in that: At least a portion of the isolation structure is conductive, and the second electrode is electrically connected to the isolation structure.

10. The display panel according to claim 1 or 2, characterized in that: The array functional layer includes a first functional area and a second functional area, the first functional area includes the pixel driving circuit, and the second functional area includes a light-transmitting film layer and / or a light-transmitting connecting wiring.

11. The display panel according to claim 1 or 2, characterized in that: The display panel further comprises a packaging unit located on a side of the light emitting device and the isolation structure away from the substrate, wherein the packaging unit extends from the pixel opening to a side of the isolation structure away from the substrate; Preferably, there is a gap between at least two adjacent packaging units, and the gap is located on a side of the isolation structure away from the substrate.

12. The display panel according to claim 11, characterized in that: The display panel further comprises a first encapsulation layer and a second encapsulation layer located on a side of the encapsulation unit and the isolation structure away from the substrate; Preferably, the materials of the encapsulation unit and the second encapsulation layer include inorganic materials; the material of the first encapsulation layer includes organic materials; Preferably, the second encapsulation layer fills the light-transmitting opening.

13. The display panel according to claim 1 or 2, characterized in that: The isolation structure comprises a supporting portion and a shielding portion located on a side of the supporting portion away from the substrate; an orthographic projection of an end of the supporting portion close to the isolation opening on the substrate is located within an orthographic projection of an end of the shielding portion close to the isolation opening on the substrate; Preferably, the etching resistance of the supporting portion is weaker than that of the shielding portion; Preferably, the material of the supporting portion includes aluminum, and / or the material of the shielding portion includes titanium.

14. The display panel according to claim 13, characterized in that: A side of the supporting portion close to the light-transmitting opening is flush with a side of the shielding portion close to the isolation opening.

15. The display panel according to claim 13, characterized in that: The isolation structure further includes a receiving portion located between the support portion and the substrate; Preferably, the orthographic projection of one end of the receiving portion close to the isolation opening on the substrate is located within the orthographic projection of one end of the shielding portion close to the isolation opening on the substrate; Preferably, the material of the receiving portion includes molybdenum.

16. The display panel according to claim 15, characterized in that: A side of the receiving portion close to the light-transmitting opening, a side of the supporting portion close to the light-transmitting opening, and a side of the shielding portion close to the isolation opening are flush.

17. A method for manufacturing a display panel, characterized in that: The method comprises: Providing a substrate; the substrate comprises an array function layer, and the array function layer comprises a pixel driving circuit; An isolation structure is provided on one side of the array functional layer, and the isolation structure encloses an isolation opening and a light-transmitting opening; the orthographic projection of the isolation structure and / or the isolation opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate at least partially overlap, and the orthographic projection of the light-transmitting opening on the substrate and the orthographic projection of the pixel driving circuit on the substrate are at least partially staggered; A light emitting device is provided, wherein at least a portion of the light emitting device is located in the isolation opening.

18. The method according to claim 17, characterized in that The method of forming the light-transmitting opening on the isolation structure includes: The isolation structure is punched to form the light-transmitting opening.

19. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 16, or comprises a display panel manufactured by the display panel manufacturing method according to claim 17 or claim 18.

20. The electronic device according to claim 19, characterized in that: The electronic device further comprises an under-screen optical device which is arranged on a side of the display panel away from the light emitting surface thereof and corresponds to the position of the light-transmitting opening.

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