Display panel, manufacturing method of display panel and electronic equipment

Abstract

The invention provides a display panel, a manufacturing method of the display panel and electronic equipment. The display panel comprises a substrate; the pressure-sensitive touch function layer is positioned on one side of the substrate; the pressure-sensitive touch function layer comprises at least one touch unit; the display function layer is positioned on one side, far away from the substrate, of the pressure-sensitive touch function layer; the display function layer comprises at least one first area and at least one second area, and orthographic projections of the first area and the second area on the substrate are not overlapped; the rigidity of the first area is greater than that of the second area in the direction perpendicular to the substrate; the orthographic projection of the touch unit on the substrate is at least partially overlapped with the orthographic projection of the first area on the substrate. Therefore, when the display function layer is touched and pressed, the first area with relatively high rigidity can better conduct the pressing force to the pressure-sensitive touch function layer below the display function layer, so that the touch detection precision can be effectively improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and more specifically, 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, and desktop computers due to their advantages such as high image quality, power saving, thin body, and wide range of applications, becoming the mainstream display device.

[0003] However, the 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 present application aims to provide a display panel, comprising:

[0005] substrate;

[0006] A pressure-sensitive touch functional layer located on one side of the substrate; the pressure-sensitive touch functional layer includes at least one touch unit;

[0007] A display functional layer is located on a side of the pressure-sensitive touch functional layer away from the substrate; the display functional layer includes at least one first area and at least one second area, and the orthographic projections of the first area and the second area on the substrate do not overlap; in a direction perpendicular to the substrate, the stiffness of the first area is greater than the stiffness of the second area; the orthographic projection of the touch unit on the substrate at least partially overlaps with the orthographic projection of the first area on the substrate.

[0008] In some possible implementations, the touch unit includes a first touch electrode, a second touch electrode, and a flexible insulating layer located between the first touch electrode and the second touch electrode, which are stacked in a direction away from the substrate; an orthographic projection of at least one of the first touch electrode and the second touch electrode on the substrate at least partially overlaps with an orthographic projection of the first region on the substrate;

[0009] Preferably, an orthographic projection of at least one of the first touch electrode and the second touch electrode on the substrate is located within an orthographic projection of the first region on the substrate.

[0010] In some possible implementations, an orthographic projection of the second touch electrode on the substrate at least partially overlaps with an orthographic projection of the first region on the substrate, and at least two adjacent touch units share the first touch electrode.

[0011] In some possible implementations, the display function layer includes an array function layer and a light-emitting function layer located on a side of the array function layer away from the substrate;

[0012] The light-emitting functional layer includes pixel light-emitting areas that are spaced apart; the first region is located in the pixel gaps between adjacent pixel light-emitting areas.

[0013] In some possible implementations, the light-emitting functional layer includes:

[0014] An isolation structure is located on a side of the array functional layer away from the substrate, the isolation structure encloses isolation openings that are spaced apart, and the orthographic projection of the pixel light-emitting area on the substrate at least partially overlaps with the orthographic projection of the isolation opening on the substrate; the isolation structure constitutes the first region.

[0015] In some possible implementations, the light-emitting functional layer further includes:

[0016] A pixel defining layer is located between the array function layer and the isolation structure, wherein the pixel defining layer includes pixel openings arranged at intervals, and the orthographic projections of the pixel openings on the substrate are located within the orthographic projections of the isolation openings on the substrate.

[0017] In some possible implementations, the isolation structure includes a supporting portion and a blocking portion located on a side of the supporting portion away from the substrate, and an orthographic projection of the supporting portion on the substrate is located within an orthographic projection of the blocking portion on the substrate;

[0018] Preferably, the supporting portion comprises a second metal layer, and the blocking portion comprises a third metal layer;

[0019] Preferably, the isolation structure further comprises a bottom portion located on a side of the support portion close to the substrate, an orthographic projection of the support portion on the substrate is located within an orthographic projection of the bottom portion on the substrate, and the bottom portion comprises a first metal layer;

[0020] Preferably, the material of the first metal layer includes molybdenum, and / or the material of the second metal layer includes aluminum, and / or the material of the third metal layer includes titanium.

[0021] In some possible implementations, the isolation structure is conductive;

[0022] The light-emitting functional layer further includes a first pixel electrode, a light-emitting material layer, and a second pixel electrode at least partially located in the isolation opening and stacked in a direction away from the substrate;

[0023] Preferably, the second pixel electrode is in electrical contact with the isolation structure.

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

[0025] Preferably, at least a portion of the first encapsulation layer extends from within the isolation opening to a side of the isolation structure away from the substrate;

[0026] Preferably, the first encapsulation layers corresponding to adjacent isolation openings are spaced apart, and the fracture of the spacers is located on a side of the isolation structure away from the substrate;

[0027] Preferably, the display panel further comprises a second encapsulation layer and a third encapsulation layer located on a side of the first encapsulation layer away from the substrate and stacked in a direction away from the substrate;

[0028] Preferably, the materials of the first encapsulation layer and the third encapsulation layer include inorganic materials; and the material of the second encapsulation layer includes organic materials.

[0029] In some possible implementations, the isolation structure includes multiple isolation units arranged in the same layer, and there is a first gap between adjacent isolation units; there is a second gap between adjacent touch units, and the orthographic projection of the first gap on the substrate is located within the orthographic projection of the second gap on the substrate.

[0030] In some possible implementations, the substrate includes a first flexible substrate and a second flexible substrate, and the pressure-sensitive touch functional layer reuses the second flexible substrate as the flexible insulating layer.

[0031] In some possible implementations, the display panel further includes a shielding layer located between the pressure-sensitive touch functional layer and the display functional layer;

[0032] Preferably, the orthographic projection of the touch unit on the substrate is located within the orthographic projection of the shielding layer on the substrate;

[0033] Preferably, the shielding layer is provided as a whole layer.

[0034] Another object of the present application is to provide a display panel, comprising:

[0035] substrate;

[0036] A pressure-sensitive touch functional layer located on one side of the substrate; the pressure-sensitive touch functional layer includes at least one touch unit;

[0037] an array functional layer located on a side of the pressure-sensitive touch functional layer away from the substrate;

[0038] An isolation structure is located on a side of the array functional layer away from the substrate, the isolation structure enclosing isolation openings that are spaced apart; the orthographic projection of the touch unit on the substrate at least partially overlaps with the orthographic projection of the isolation structure on the substrate.

[0039] The present application also provides a method for manufacturing a display panel, the method comprising:

[0040] providing a substrate;

[0041] forming a pressure-sensitive touch functional layer on one side of the substrate, wherein the pressure-sensitive touch functional layer includes at least one touch unit;

[0042] A display function layer is formed on a side of the pressure-sensitive touch function layer away from the substrate; the display function layer includes at least one first area and at least one second area, and the orthographic projections of the first area and the second area on the substrate do not overlap; in a direction perpendicular to the substrate, the stiffness of the first area is greater than the stiffness of the second area; the orthographic projection of the touch unit on the substrate at least partially overlaps with the orthographic projection of the first area on the substrate.

[0043] The present application also provides an electronic device, which includes the display panel provided in the present application.

[0044] Compared with the prior art, this application has the following beneficial effects:

[0045] The present application provides a display panel, a method for manufacturing a display panel, and an electronic device. By setting a pressure-sensitive touch functional layer below the display functional layer, and setting the touch unit in the pressure-sensitive touch functional layer to correspond to the position of a first area with greater rigidity in the display functional layer, when the display functional layer is touched and pressed, the first area with greater rigidity can better transmit the pressing force to the pressure-sensitive touch functional layer below the display functional layer, thereby effectively improving the accuracy of touch detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. 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 relevant drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 One of the schematic diagrams of the display panel provided in this embodiment;

[0048] Figure 2 The second schematic diagram of the display panel provided in this embodiment;

[0049] Figure 3 The third schematic diagram of the display panel provided in this embodiment;

[0050] Figure 4 A fourth schematic diagram of a display panel provided in this embodiment;

[0051] Figure 5 The fifth schematic diagram of the display panel provided in this embodiment;

[0052] Figure 6 A schematic diagram of the isolation structure provided in this embodiment;

[0053] Figure 7 The sixth schematic diagram of the display panel provided in this embodiment;

[0054] Figure 8 The seventh schematic diagram of the display panel provided in this embodiment;

[0055] Figure 9 A schematic diagram of an isolation unit provided in this embodiment;

[0056] Figure 10 The eighth schematic diagram of the display panel provided in this embodiment;

[0057] Figure 11 A ninth schematic diagram of a display panel provided in this embodiment;

[0058] Figure 12 This is a tenth schematic diagram of a display panel provided in this embodiment;

[0059] Figure 13 This is a schematic flow chart of the steps of the method for manufacturing a display panel provided in this embodiment.

[0060] Icon: 100-substrate; 200-pressure-sensitive touch functional layer; 300-display functional layer; 301-first area; 302-second area; 201-touch unit; 210-first touch electrode; 230-second touch electrode; 220-flexible insulating layer; 304-pixel light-emitting area; 305-pixel gap; 310-array functional layer; 320-light-emitting functional layer; 322-first pixel electrode; 323-pixel defining layer; 3 24-isolation structure; 325-light-emitting material layer; 326-second pixel electrode; 327-first encapsulation layer; 328-second encapsulation layer; 329-third encapsulation layer; 341-support portion; 342-blocking portion; 343-bottom; 3411-first metal layer; 3412-second metal layer; 3421-third metal layer; 3402-first gap; 202-second gap; 3401-isolation unit; 400-shielding layer. DETAILED DESCRIPTION

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein 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 protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall 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, it does not need to be further defined or explained in subsequent drawings.

[0064] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used solely to distinguish descriptions and should not be construed 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 can be combined with each other.

[0066] This embodiment provides a display panel that can improve touch detection accuracy. The solution provided by this embodiment is described in detail below.

[0067] See Figure 1 , Figure 1 This is a schematic diagram of a display panel provided in this embodiment. The display panel may include a substrate 100 , a pressure-sensitive touch function layer 200 , and a display function layer 300 .

[0068] In this embodiment, the substrate 100 may include a rigid substrate (eg, a glass substrate) or a flexible substrate. Alternatively, the substrate 100 may be a flexible substrate, for example, the material of the substrate 100 may include polyimide (Pi).

[0069] The pressure-sensitive touch function layer 200 is located on one side of the substrate 100, and the pressure-sensitive touch function layer 200 includes at least one touch unit 201. Optionally, the pressure-sensitive touch function layer 200 includes a plurality of touch units 201 disposed in the same layer.

[0070] The display function layer 300 is located on a side of the pressure-sensitive touch function layer 200 away from the substrate 100. The display function layer 300 includes at least one first region 301 and at least one second region 302. The orthographic projections of the first region 301 and the second region 302 on the substrate 100 do not overlap. In a direction perpendicular to the substrate 100, the stiffness of the first region 301 is greater than that of the second region 302. In other words, in a direction perpendicular to the substrate 100, the elastic deformation coefficient of the first region 301 is smaller than that of the second region 302.

[0071] Optionally, in this embodiment, the first region 301 and the second region 302 may have different stiffnesses by adopting different materials and / or providing different film layer structures.

[0072] The orthographic projection of the touch unit 201 on the substrate 100 at least partially overlaps with the orthographic projection of the first region 301 on the substrate 100 . That is, in this embodiment, the touch unit 201 is disposed on a side of the first region 301 close to the substrate 100 .

[0073] Based on the above design, the stiffness of the first region 301 is greater than that of the second region 302 in a direction perpendicular to the substrate 100. When pressed by a touch, the deformation of the first region 301 is smaller than that of the second region 302. Therefore, the first region 301 can better transmit the touch pressure to the pressure-sensitive touch functional layer 200. Therefore, placing the touch unit 201 at a position corresponding to the first region 301 can better generate a touch signal based on touch pressure sensing, thereby improving touch detection accuracy.

[0074] For some possible implementations, see Figure 2 The touch unit 201 can use a pressure-sensitive capacitance detection method. Specifically, the touch unit 201 includes a first touch electrode 210 and a second touch electrode 230 stacked in a direction away from the substrate 100, and a flexible insulating layer 220 located between the first touch electrode 210 and the second touch electrode 230. The orthographic projection of at least one of the first touch electrode 210 and the second touch electrode 230 on the substrate 100 at least partially overlaps with the orthographic projection of the first area 301 on the substrate 100.

[0075] When touch pressure is transmitted to the touch unit 201, the flexible insulating layer 220 between the first touch electrode 210 and the second touch electrode 230 is deformed by the pressure, reducing the distance between the first touch electrode 210 and the second touch electrode 230, thereby changing the capacitance between the first touch electrode 210 and the second touch electrode 230. By detecting the change in capacitance value of the touch unit 201, the touch position can be determined.

[0076] Optionally, in this embodiment, the orthographic projection of at least one of the first touch electrode 210 and the second touch electrode 230 on the substrate 100 is located within the orthographic projection of the first region 301 on the substrate 100. In this way, the touch unit 201 can more accurately sense the touch pressure transmitted through the first region 301.

[0077] For some possible implementations, see Figure 2 Each of the touch control units 201 may have a relatively independent first touch control electrode 210 and second touch control electrode 230. The orthographic projections of the first touch control electrode 210 and the second touch control electrode 230 on the substrate 100 are both located within the orthographic projection of the first area 301 on the substrate 100.

[0078] In some other possible implementations, at least two adjacent touch units 201 may share one first touch electrode 210 or one second touch electrode 230 .

[0079] For example, see Figure 3 At least two adjacent touch units 201 share the first touch electrode 210, and the orthographic projection of the second touch electrode 230 on the substrate 100 at least partially overlaps with the orthographic projection of the first region 301 on the substrate 100. This reduces the difficulty in manufacturing the first touch electrode 210 and improves the manufacturing efficiency of the pressure-sensitive touch functional layer 200.

[0080] Some display panels using flexible substrates typically include two stacked flexible substrates. Based on this, in some possible implementations of this embodiment, the substrate 100 includes a first flexible substrate and a second flexible substrate, and the pressure-sensitive touch functional layer reuses the second flexible substrate as the flexible insulating layer 220. That is, the flexible insulating layer 220 includes the second flexible substrate. In this embodiment, the second flexible substrate of the two flexible substrates is reused as the flexible insulating layer 220 of the pressure-sensitive touch functional layer 200. This reduces the number of film layers in the display panel and simplifies the manufacturing process.

[0081] For some possible implementations, see Figure 4 The display function layer 300 includes an array function layer 310 and a light emitting function layer 320 located on a side of the array function layer 310 away from the substrate 100 .

[0082] In this embodiment, the array function layer 310 may include multiple film layer structures, such as a buffer layer, an active layer, multiple metal layers, multiple insulating layers, and a planarization layer. The multiple film layer structures of the array function layer 310 may form multiple thin film transistors (TFTs) at different locations on the array function layer 310. The TFTs may cooperate with each other to form multiple pixel driving units or driving circuits.

[0083] The light-emitting functional layer 320 includes pixel light-emitting areas 304 arranged at intervals, wherein a light-emitting material may be provided in the pixel light-emitting areas 304 to emit light. The first region 301 is located in a pixel gap 305 between adjacent pixel light-emitting areas 304 .

[0084] In this embodiment, since the area corresponding to the pixel light-emitting area 304 and the area corresponding to the pixel gap 305 have different film layer structures, the first area 301 with relatively large rigidity can be formed in the area corresponding to the pixel gap 305, and the second area 302 with relatively small rigidity can be formed in the area corresponding to the pixel light-emitting area 304.

[0085] Further, in some possible implementations, please refer to Figure 5, the light-emitting functional layer 320 includes an isolation structure 324 .

[0086] The isolation structure 324 is located on a side of the array functional layer 310 away from the substrate 100 , and the isolation structure 324 encloses isolation openings that are spaced apart. The orthographic projection of the pixel light-emitting area 304 on the substrate 100 at least partially overlaps with the orthographic projection of the isolation opening on the substrate 100 .

[0087] Based on the above design, the isolation structure 324 can be made of a material with greater hardness (such as metal). Therefore, at the position corresponding to the isolation structure 324 , the overall stiffness of the display function layer 300 is greater, thereby forming the first area 301 .

[0088] Further, see Figure 6 The light-emitting functional layer 320 includes a pixel defining layer 323, which is located between the array functional layer 310 and the isolation structure 324. The pixel defining layer 323 includes the pixel openings arranged at intervals. The orthographic projections of the pixel openings on the substrate 100 are located within the orthographic projections of the isolation openings on the substrate 100. In other words, the isolation openings are connected to the pixel openings.

[0089] For some possible implementations, see Figure 7 The isolation structure 324 includes a support portion 341 and a blocking portion 342 located on a side of the support portion 341 away from the substrate 100. The orthographic projection of the support portion 341 on the substrate 100 is located within the orthographic projection of the blocking portion 342 on the substrate 100. In other words, the support portion 341 and the blocking portion 342 cooperate to form an undercut structure, thereby better disconnecting the organic film layer during subsequent evaporation deposition, preventing the organic film layers in adjacent pixel openings from connecting with each other.

[0090] Optionally, the supporting portion 341 includes a second metal layer 3412 , and the blocking portion 342 includes a third metal layer 3421 .

[0091] Preferably, the isolation structure 324 further includes a bottom 343 located on the side of the support portion 341 close to the substrate, the orthographic projection of the support portion 341 on the substrate 100 is located within the orthographic projection of the bottom 343 on the substrate 100, and the bottom includes a first metal layer 3411.

[0092] Preferably, the material of the first metal layer 3411 includes molybdenum, and / or the material of the second metal layer 3412 includes aluminum, and / or the material of the third metal layer 3421 includes titanium.

[0093] Optionally, the supporting portion 341 includes a second metal layer 3412 , and the blocking portion 342 includes a third metal layer 3421 .

[0094] Preferably, the material of the second metal layer 3412 includes aluminum, and / or the material of the third metal layer 3421 includes titanium.

[0095] In some possible implementations, Figure 5 Based on the illustrated embodiment, the isolation structure 324 is conductive. The light-emitting functional layer 320 further includes a first pixel electrode 322, a light-emitting material layer 325, and a second pixel electrode 326, which are at least partially located within the isolation opening and stacked in a direction away from the substrate 100. Preferably, a gap exists between the first pixel electrode 322 and the isolation structure 324, and the second pixel electrode 326 extends to electrically contact the isolation structure 324.

[0096] The first pixel electrode 322 can be electrically connected to a pixel driving circuit in the array function layer 310, and the second pixel electrode 326 can be electrically connected to a common voltage supply circuit via the isolation structure 324. When there is a potential difference between the first pixel electrode 322 and the second pixel electrode 326, carriers recombine in the light-emitting material layer 325 to drive the light-emitting material layer 325 to emit light.

[0097] In some possible implementations, Figure 6 Based on the illustrated embodiment, the isolation structure 324 is conductive. The light-emitting functional layer 320 further includes a first pixel electrode 322, a light-emitting material layer 325, and a second pixel electrode 326, which are at least partially located within the pixel opening and stacked in a direction away from the substrate 100. At least a portion of the second pixel electrode 326 extends from within the pixel opening to a side of the pixel defining layer 323 away from the substrate 100 and is in electrical contact with the isolation structure 324.

[0098] The first pixel electrode 322 can be electrically connected to a pixel driving circuit in the array function layer 310, and the second pixel electrode 326 can be electrically connected to a common voltage supply circuit via the isolation structure 324. When there is a potential difference between the first pixel electrode 322 and the second pixel electrode 326, carriers recombine in the light-emitting material layer 325 to drive the light-emitting material layer 325 to emit light.

[0099] For some possible implementations, see Figure 8 The display panel further includes a first encapsulation layer 327 located on a side of the second pixel electrode 326 away from the substrate 100 .

[0100] Optionally, at least a portion of the first encapsulation layer 327 extends from the isolation opening to a side of the isolation structure 324 away from the substrate 100 ;

[0101] Optionally, the first encapsulation layers 327 corresponding to adjacent isolation openings are spaced apart, and the fracture of the separation is located on the side of the isolation structure 324 away from the substrate 100. That is, the first encapsulation layers 327 corresponding to two adjacent pixel openings are disconnected from each other to form a fracture on the side of the isolation structure 324 away from the substrate 100.

[0102] For some possible implementations, see Figure 9 The display panel further includes a second encapsulation layer 328 and a third encapsulation layer 329 located on a side of the first encapsulation layer 327 away from the substrate 100 and stacked in a direction away from the substrate 100.

[0103] Optionally, the first encapsulation layer 327 and the third encapsulation layer 329 may be formed of an inorganic material, and the second encapsulation layer 328 may be formed of an organic material. For example, the first encapsulation layer 327 and the third encapsulation layer 329 may be formed by chemical vapor deposition (CVD), and the second encapsulation layer 328 may be formed by inkjet printing (IJP).

[0104] In this embodiment, the second encapsulation layer 328 can have relatively good planarization performance, and the rigidity of the second encapsulation layer 328 is lower than that of the isolation structure 324. Thus, in the light-emitting functional layer 320, the first region 301 includes the pixel defining layer 323 and the isolation structure 324, which have relatively high rigidity, and the second region 302 mainly includes the organic layer, which has relatively low rigidity. This ensures that the overall rigidity of the display functional layer 300 at the location of the isolation structure 324 is higher than that at the pixel opening.

[0105] For some possible implementations, see Figure 10 The isolation structure 324 includes a plurality of isolation units 3401 arranged in the same layer, and a first gap 3402 is provided between adjacent isolation units 3401; a second gap 202 is provided between adjacent touch units 201, and the orthographic projection of the first gap 3402 on the substrate 100 is located within the orthographic projection of the second gap 202 on the substrate 100.

[0106] It is understandable that the isolation structure 324 may further enclose to form an isolation gap, and the isolation gap is a first gap between adjacent isolation units 3401 .

[0107] Thus, by providing the first gap 3402 between the isolation units 3401 with greater rigidity, the isolation unit 3401 can be prevented from driving other adjacent isolation units 3401 to move and transmit touch pressure when being touched, thereby improving touch detection accuracy.

[0108] Furthermore, in some possible implementations, one isolation unit may include multiple isolation openings. That is, one isolation unit may include isolation openings corresponding to multiple adjacent sub-pixels, for example, one isolation unit may include isolation openings corresponding to multiple sub-pixels of different colors in one pixel.

[0109] In some other possible implementations, one isolation unit may include only one isolation opening.

[0110] Optionally, adjacent isolation structures 324 are connected to each other via connecting wires, and the connecting wires are provided on the same layer as the isolation structures 324 , or the connecting wires are located in the array functional layer 310 .

[0111] For some possible implementations, see Figure 11 and Figure 12 The display panel further includes a shielding layer 400 located between the pressure-sensitive touch function layer 200 and the display function layer 300. The shielding layer 400 can shield the touch signal of the pressure-sensitive touch function layer 200 from the mutual influence of the display drive signal of the display function layer 300.

[0112] In some possible implementations, the orthographic projection of the touch unit 201 on the substrate 100 is located within the orthographic projection of the shielding layer 400 on the substrate 100 .

[0113] Furthermore, in some possible implementations, the shielding layer 400 may only cover the touch unit 201. In other possible implementations, the shielding layer 400 may be provided as an entire layer.

[0114] Furthermore, the shielding layer 400 may include a bottom shield metal (BSM). That is, the bottom shield metal layer may be reused as the shielding layer 400 to shield the touch signal of the pressure-sensitive touch function layer 200 from the mutual influence of the display drive signal of the display function layer 300 while reducing the influence of external light on the semiconductor active layer in the display function layer 300.

[0115] In some possible implementations, the display panel provided in this embodiment may further include an optical film (e.g., a polarizer), a transparent adhesive layer (e.g., an optical adhesive layer), a cover plate, and other film layer structures located on the side of the second encapsulation layer 329 away from the substrate 100.

[0116] That is, in this embodiment, the pressure-sensitive touch function layer 200 is disposed below the display function layer 300, so there is no need to dispose another pressure-sensitive touch function layer above the display function layer 300. This prevents the pressure-sensitive touch function layer from affecting the display function layer 300, thereby improving the display quality of the display panel.

[0117] This application also provides a display panel, see Figure 5 or Figure 6 The display panel may include a substrate 100 , a pressure-sensitive touch function layer 200 , an array function layer 310 and an isolation structure 324 .

[0118] The pressure-sensitive touch function layer 200 is located on one side of the substrate 100, and the pressure-sensitive touch function layer 200 includes at least one touch unit 201. Optionally, the pressure-sensitive touch function layer 200 includes a plurality of touch units 201 disposed in the same layer.

[0119] The array functional layer 310 is located on a side of the pressure-sensitive touch functional layer 200 away from the substrate 100 .

[0120] The isolation structure 324 is located on a side of the array functional layer 310 away from the substrate 100 and encloses spaced isolation openings. The orthographic projection of the touch unit 201 on the substrate 100 at least partially overlaps with the orthographic projection of the isolation structure 324 on the substrate 100.

[0121] Based on the above design, the isolation structure 324 can be made of a relatively hard material (e.g., metal). At the location corresponding to the isolation structure 324, the overall rigidity of the display function layer 300 is relatively high. When the display function layer is touched and pressed, the relatively rigid isolation structure 324 can better transmit the pressing force to the touch unit 201 below the display function layer, thereby effectively improving the accuracy of touch detection.

[0122] See Figure 13 This embodiment also provides a method for manufacturing a display panel, which may include the following steps.

[0123] In step S110 , a substrate 100 is provided.

[0124] In step S120 , a pressure-sensitive touch functional layer 200 is formed on one side of the substrate 100 . The pressure-sensitive touch functional layer 200 includes at least one touch unit 201 .

[0125] In step S130 , a display function layer 300 is formed on a side of the pressure-sensitive touch function layer 200 away from the substrate 100 ; the display function layer 300 includes at least one first area 301 and at least one second area 302 , and the orthographic projections of the first area 301 and the second area 302 on the substrate 100 do not overlap.

[0126] In a direction perpendicular to the substrate 100 , the stiffness of the first region 301 is greater than that of the second region 302 ; the orthographic projection of the touch unit 201 on the substrate 100 at least partially overlaps with the orthographic projection of the first region 301 on the substrate 100 .

[0127] Among them, patent applications PCT / CN2023 / 134518, 202310759370.2, 202310740412.8, 202310707209.0, and 202311346196.5 record the relevant technical solutions of the isolation structure, and their contents are incorporated into this application by reference for reference.

[0128] The present application also provides an electronic device, which includes the display panel provided by 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 display functions.

[0129] In summary, the present application provides a display panel, a method for manufacturing a display panel, and an electronic device, by setting a pressure-sensitive touch function layer below the display function layer, and setting the touch unit in the pressure-sensitive touch function layer to correspond to the position of the first area with greater rigidity in the display function layer. In this way, when the display function layer is touch-pressed, the first area with greater rigidity can better transmit the pressing force to the pressure-sensitive touch function layer below the display function layer, thereby effectively improving the accuracy of touch detection.

[0130] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0131] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A display panel, characterized in that: The display panel includes: substrate; A pressure-sensitive touch functional layer located on one side of the substrate; the pressure-sensitive touch functional layer includes at least one touch unit; A display functional layer is located on a side of the pressure-sensitive touch functional layer away from the substrate; the display functional layer includes at least one first area and at least one second area, and the orthographic projections of the first area and the second area on the substrate do not overlap; in a direction perpendicular to the substrate, the stiffness of the first area is greater than the stiffness of the second area; the orthographic projection of the touch unit on the substrate at least partially overlaps with the orthographic projection of the first area on the substrate.

2. The display panel according to claim 1, wherein: The touch unit includes a first touch electrode and a second touch electrode stacked in a direction away from the substrate, and a flexible insulating layer located between the first touch electrode and the second touch electrode; an orthographic projection of at least one of the first touch electrode and the second touch electrode on the substrate at least partially overlaps with an orthographic projection of the first region on the substrate; Preferably, an orthographic projection of at least one of the first touch electrode and the second touch electrode on the substrate is located within an orthographic projection of the first region on the substrate.

3. The display panel according to claim 2, wherein: The orthographic projection of the second touch electrode on the substrate at least partially overlaps with the orthographic projection of the first region on the substrate, and at least two adjacent touch units share the first touch electrode.

4. The display panel according to claim 2, wherein: The display function layer includes an array function layer and a light emitting function layer located on a side of the array function layer away from the substrate; The light-emitting functional layer includes pixel light-emitting areas that are spaced apart; the first region is located in the pixel gaps between adjacent pixel light-emitting areas.

5. The display panel according to claim 4, wherein: The light-emitting functional layer includes: An isolation structure is located on a side of the array functional layer away from the substrate, the isolation structure encloses isolation openings that are spaced apart, and the orthographic projection of the pixel light-emitting area on the substrate at least partially overlaps with the orthographic projection of the isolation opening on the substrate; the isolation structure constitutes the first region.

6. The display panel according to claim 5, wherein: The light-emitting functional layer further comprises: A pixel defining layer is located between the array function layer and the isolation structure, wherein the pixel defining layer includes pixel openings arranged at intervals, and the orthographic projections of the pixel openings on the substrate are located within the orthographic projections of the isolation openings on the substrate.

7. The display panel according to claim 5, wherein: The isolation structure includes a supporting portion and a blocking portion located on a side of the supporting portion away from the substrate, wherein an orthographic projection of the supporting portion on the substrate is located within an orthographic projection of the blocking portion on the substrate; Preferably, the supporting portion comprises a second metal layer, and the blocking portion comprises a third metal layer; Preferably, the isolation structure further comprises a bottom portion located on a side of the support portion close to the substrate, an orthographic projection of the support portion on the substrate is located within an orthographic projection of the bottom portion on the substrate, and the bottom portion comprises a first metal layer; Preferably, the material of the first metal layer includes molybdenum, and / or the material of the second metal layer includes aluminum, and / or the material of the third metal layer includes titanium.

8. The display panel according to claim 5, wherein: The isolation structure is conductive; The light-emitting functional layer further includes a first pixel electrode, a light-emitting material layer, and a second pixel electrode at least partially located in the isolation opening and stacked in a direction away from the substrate; Preferably, the second pixel electrode is in electrical contact with the isolation structure.

9. The display panel according to claim 8, wherein: The display panel further includes a first encapsulation layer located on a side of the second pixel electrode away from the substrate; Preferably, at least a portion of the first encapsulation layer extends from within the isolation opening to a side of the isolation structure away from the substrate; Preferably, the first encapsulation layers corresponding to adjacent isolation openings are spaced apart, and the fracture of the spacers is located on a side of the isolation structure away from the substrate; Preferably, the display panel further comprises a second encapsulation layer and a third encapsulation layer located on a side of the first encapsulation layer away from the substrate and stacked in a direction away from the substrate; Preferably, the materials of the first encapsulation layer and the third encapsulation layer include inorganic materials; and the material of the second encapsulation layer includes organic materials.

10. The display panel according to claim 5, wherein: The isolation structure includes a plurality of isolation units arranged in the same layer, with a first gap between adjacent isolation units; a second gap between adjacent touch units, and an orthographic projection of the first gap on the substrate being within an orthographic projection of the second gap on the substrate.

11. The display panel according to claim 2, wherein: The substrate includes a first flexible substrate and a second flexible substrate, and the pressure-sensitive touch functional layer reuses the second flexible substrate as the flexible insulating layer.

12. The display panel according to claim 1, wherein The display panel further includes a shielding layer located between the pressure-sensitive touch functional layer and the display functional layer; Preferably, the orthographic projection of the touch unit on the substrate is located within the orthographic projection of the shielding layer on the substrate; Preferably, the shielding layer is provided as a whole layer.

13. A display panel, characterized in that: The display panel includes: substrate; A pressure-sensitive touch functional layer located on one side of the substrate; the pressure-sensitive touch functional layer includes at least one touch unit; an array functional layer located on a side of the pressure-sensitive touch functional layer away from the substrate; An isolation structure is located on a side of the array functional layer away from the substrate, the isolation structure enclosing isolation openings that are spaced apart; the orthographic projection of the touch unit on the substrate at least partially overlaps with the orthographic projection of the isolation structure on the substrate.

14. A method for manufacturing a display panel, characterized in that: The method comprises: providing a substrate; forming a pressure-sensitive touch functional layer on one side of the substrate, wherein the pressure-sensitive touch functional layer includes at least one touch unit; A display function layer is formed on a side of the pressure-sensitive touch function layer away from the substrate; the display function layer includes at least one first area and at least one second area, and the orthographic projections of the first area and the second area on the substrate do not overlap; in a direction perpendicular to the substrate, the stiffness of the first area is greater than the stiffness of the second area; the orthographic projection of the touch unit on the substrate at least partially overlaps with the orthographic projection of the first area on the substrate.

15. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 14.

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