Display panel and display device

Abstract

The invention relates to the technical field of display, and particularly provides a display panel and a display device. The display panel is provided with a display area. The display panel comprises a substrate, a display structure layer located on one side of the substrate and at least one pressure touch electrode set. Wherein the display structure layer is located in the display area. The pressure touch electrode sets are located in the display area, each pressure touch electrode set comprises at least two pressure touch electrodes, and the pressure touch electrodes and part of film layers in the display structure layer are arranged on the same layer. The pressure touch electrodes in the same pressure touch electrode group form a Wheatstone bridge and then are electrically connected with a pressure detection circuit; the pressure detection circuit is used for detecting the pressure borne by the display panel. According to the embodiment of the invention, the pressure touch electrode and part of the film layer in the display structure layer are arranged on the same layer, so that the preparation process of the display panel can be simplified, the thickness of the display panel is reduced, and the preparation cost is reduced.

Description

Technical Field

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

[0002] With the rapid development of electronic technology, electronic display devices are being used more and more widely. Among them, touch display devices, as a new type of display device, have been widely used in various fields of life and production due to their advantages such as more user-friendly operation, better response, and more stylish design. Summary of the Invention

[0003] This disclosure aims to solve at least one of the technical problems existing in the prior art, and proposes a display panel and display device.

[0004] To achieve the above objectives, this disclosure provides a display panel having a display area; the display panel includes:

[0005] Substrate;

[0006] A display structure layer located on one side of the substrate; the display structure layer is located in the display area;

[0007] At least one pressure touch electrode group located in the display area, the pressure touch electrode group including at least two pressure touch electrodes, the pressure touch electrodes being disposed in the same layer as a portion of the film layer in the display structure layer;

[0008] The pressure touch electrodes in the same pressure touch electrode group form a Wheatstone bridge.

[0009] In some embodiments, the display structure layer includes a driving circuit layer and a light-emitting device located on the side of the driving circuit layer away from the substrate; the light-emitting device includes a first electrode and a second electrode, the second electrode being electrically connected to the driving circuit layer, and the first electrode being located on the side of the second electrode away from the substrate.

[0010] The pressure touch electrode is disposed in the same layer as the first electrode, or the pressure touch electrode is disposed in the same layer as the second electrode and is insulated from it.

[0011] In some embodiments, the pressure touch electrode is disposed on the same layer as the first electrode; the orthographic projections of the pressure touch electrode and the first electrode on the substrate do not overlap.

[0012] In some embodiments, the pressure touch electrode is disposed in the same layer as the first electrode; the pressure touch electrode and the first electrode are an integral structure, and the integral structure is used to receive display driving signals during the display phase and touch driving signals during the touch phase.

[0013] In some embodiments, the pressure touch electrode extends along a first direction; a plurality of pressure touch electrodes in the same pressure touch electrode group are arranged along a second direction; the second direction intersects the first direction.

[0014] In some embodiments, the pressure touch electrode includes a plurality of pressure touch units arranged along the first direction and electrically connected in sequence; the pressure touch unit is zigzag-shaped.

[0015] In some embodiments, the display area includes a plurality of pixel areas; the plurality of pixel areas are arranged in multiple rows and columns; the pixel areas do not overlap with the orthographic projection of the pressure touch electrode on the substrate.

[0016] The pressure touch unit includes multiple first wires extending in the row direction along the pixel area and multiple second wires extending in the column direction along the pixel area, with the multiple second wires arranged in the row direction; or, the pressure touch unit includes multiple first wires extending in the column direction along the pixel area and multiple second wires extending in the row direction along the pixel area, with the multiple second wires arranged in the column direction.

[0017] Two adjacent second wires are connected through the first wire, and two adjacent second wires are respectively connected to the two ends of the same first wire.

[0018] In some embodiments, at least one of the pixel regions has an orthogonal projection on the substrate between the orthogonal projections of two adjacent second conductors on the substrate.

[0019] In some embodiments, the pressure detection circuit includes a signal acquisition unit and a power supply; the pressure touch electrode group includes two pressure touch electrodes, and the two pressure touch electrodes in the same pressure touch electrode group are a first pressure touch electrode and a second pressure touch electrode;

[0020] The first end of the first pressure touch electrode is electrically connected to the first end of the signal acquisition device and the first end of the power supply, respectively.

[0021] The first end of the second pressure touch electrode is electrically connected to the second end of the signal acquisition device and the second end of the power supply, respectively;

[0022] The second end of the first pressure touch electrode is electrically connected to the first end of the second pressure touch electrode through a first resistor;

[0023] The second end of the second pressure touch electrode is electrically connected to the first end of the first pressure touch electrode through a second resistor.

[0024] This disclosure also provides a display device, including a display panel as described in any of the above-described embodiments. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 These are cross-sectional structural diagrams of the display panel in some embodiments;

[0027] Figure 2 This is a schematic cross-sectional view of the display panel in some embodiments of this disclosure;

[0028] Figure 3A This is a schematic diagram of the planar structure of the display panel in some embodiments of this disclosure;

[0029] Figure 3B yes Figure 3A A schematic diagram of the planar structure of the pressure touch electrode in the illustrated embodiment;

[0030] Figure 3C yes Figure 3A A schematic diagram of the planar structure of the first electrode in the illustrated embodiment;

[0031] Figure 4 This is a schematic diagram of the planar structure of the display panel in some other embodiments of this disclosure;

[0032] Figure 5 This is a circuit connection diagram of the two pressure touch electrodes and the pressure detection circuit constituting the Wheatstone bridge in some embodiments of this disclosure;

[0033] Figure 6A This is a schematic cross-sectional view of the display area of ​​the display panel in some embodiments of this disclosure;

[0034] Figure 6B This is a cross-sectional structural schematic diagram of the display area of ​​the display panel in some other embodiments of this disclosure;

[0035] Figure 6C This is a cross-sectional structural schematic diagram of the display area of ​​the display panel in some embodiments of this disclosure;

[0036] Figure 7 This is a schematic diagram of the structure of the pressure touch electrode in some embodiments of this disclosure;

[0037] Figure 8 This is a schematic diagram of the structure of the pressure touch electrode in some other embodiments of this disclosure;

[0038] Figure 9This is a partial planar schematic diagram of the display panel in the display area in some embodiments of this disclosure;

[0039] Figure 10 This is a partial planar schematic diagram of the display panel in the display area in some other embodiments of this disclosure;

[0040] Figure 11 This is a partial planar schematic diagram of the display panel in the display area in some embodiments of this disclosure;

[0041] Figure 12 This is a partial planar schematic diagram of the display panel in the display area in some embodiments of this disclosure. Detailed Implementation

[0042] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0044] Unless otherwise defined, the technical or scientific terms used in the embodiments of this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] As used herein, “parallel” and “perpendicular” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°.

[0046] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0047] This document describes exemplary embodiments with reference to sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Therefore, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0048] Touchscreen displays, with their simple and direct operation, have become the mainstream information interaction devices in electronic devices. Touchscreen displays can be categorized based on their pressure sensing principles, including resistive, capacitive, infrared, and ultrasonic types. Among these, capacitive touchscreen displays offer advantages such as dust resistance, scratch resistance, and high resolution, and have gradually permeated all aspects of people's lives. Furthermore, with the continuous progress of society and technology, users' demands for touchscreen displays are constantly increasing.

[0049] Figure 1 These are schematic cross-sectional views of the display panel in some embodiments. In related technologies, in some embodiments, such as... Figure 1 As shown, the display panel includes a substrate 1, a display structure layer 2 located on one side of the substrate 1, an encapsulation layer 3 located on the side of the display structure layer 2 away from the substrate 1, and a touch structure layer 4 located on the side of the encapsulation layer 3 away from the substrate 1. Optionally, the display panel further includes an insulating layer 5, a polarizing layer 6, an optically clear adhesive (OCA) 7, and a cover plate layer 8, sequentially disposed along the side of the touch structure layer 4 away from the substrate 1. Clearly, by... Figure 1It is known that the touch structure layer 4 is a separately designed film layer, and it is located on both sides of the encapsulation layer 3, respectively, along with the display structure layer 2. In other embodiments, the touch structure layer 4 includes a capacitive touch film layer and a pressure touch layer, and both the capacitive touch film layer and the pressure touch layer are separately designed structures, located on different film layers. For example, the capacitive touch film layer is located on the side of the encapsulation layer 3 away from the substrate 1, and is used to detect the touch position of the display panel. The pressure touch layer is located between the encapsulation layer 3 and the substrate 1, and is used to detect the magnitude of the touch pressure applied to the display panel. Therefore, the overall thickness of the display panel with touch functionality is relatively thick, the manufacturing process is more complex, and the cost is higher. In addition, the conductive layers in the display structure layer 2, such as the first electrode and the second electrode of the light-emitting device, can also interfere with the signal of the capacitive touch film layer, leading to problems such as inaccurate touch detection.

[0050] In order to at least alleviate or solve one of the aforementioned technical problems, this disclosure provides a display panel and a display device.

[0051] Figure 2 This is a cross-sectional structural diagram of the display panel 100 in some embodiments of this disclosure. Figure 3A This is a schematic diagram of the planar structure of the display panel 100 in some embodiments of this disclosure. Figure 3B yes Figure 3A A schematic diagram of the planar structure of the pressure touch electrode 20 in the embodiment shown. Figure 3C yes Figure 3A A schematic diagram of the planar structure of the first electrode 223 in the embodiment shown. Figure 4 This is a schematic diagram of the planar structure of the display panel 100 in some other embodiments of this disclosure.

[0052] In some embodiments, such as Figure 2 , Figure 3A , Figure 3B and Figure 4 As shown, a display panel 100 provided in this disclosure has a display area AA and a non-display area NA located on at least one side of the display area AA. For example, in... Figure 2 , Figure 3A , Figure 3B and Figure 4 In the embodiment shown, the non-display area NA surrounds the display area AA.

[0053] The display panel 100 in this embodiment includes: a substrate 1, a display structure layer 2, and at least one pressure touch electrode group 10. The display structure layer 2 is located on one side of the substrate 1 and is situated in the display area AA. The pressure touch electrode groups 10 are located in the display area AA, and each pressure touch electrode group 10 includes at least two pressure touch electrodes 20, for example, in... Figure 3A , Figure 3Band Figure 4 In the illustrated embodiment, each pressure touch electrode group 10 includes two pressure touch electrodes 20. The pressure touch electrodes 20 are co-layered with a portion of the film layer in the display structure layer 2. In this embodiment, "co-layered" means that multiple structures are formed from the same material layer through the same patterning process; that is, in this embodiment, the pressure touch electrodes 20 and a certain film layer structure in the display structure layer 2 are formed from the same material layer through the same patterning process.

[0054] Optionally, the number of pressure touch electrode groups 10 can be set according to actual application needs, and this embodiment does not limit this.

[0055] Optionally, the length, shape, and other parameters of each pressure touch electrode 20 can be set according to actual application needs, and this embodiment does not limit this.

[0056] Each pressure touch electrode 20 in the same pressure touch electrode group 10 forms a Wheatstone bridge and is then electrically connected to the pressure detection circuit. The pressure detection circuit is used to detect the pressure applied to the display panel 100. For example, two pressure touch electrodes 20 in the same pressure touch electrode group 10 form a Wheatstone bridge and are then electrically connected to the pressure detection circuit. Optionally, the two pressure touch electrodes 20 in the same pressure touch electrode group 10 forming a Wheatstone bridge can be electrically connected to the pressure detection circuit through a through-line on a different layer from the pressure touch electrodes 20.

[0057] In this embodiment, the pressure touch electrode 20 is disposed in the same layer as a portion of the film layer in the display structure layer 2. This means the pressure touch electrode 20 no longer occupies a separate film layer. Therefore, the display panel 100 in this embodiment has a simpler structure and can effectively reduce its thickness. Furthermore, the manufacturing process of the display panel 100 can be simplified by eliminating one manufacturing step, thus reducing costs. Moreover, the co-location of the pressure touch electrode 20 with a portion of the film layer in the display structure layer 2 also reduces interference with the signal of the pressure touch electrode 20 caused by capacitance or other factors between the conductive layer in the display structure layer 2 and the pressure touch electrode 20.

[0058] Meanwhile, in this embodiment of the present disclosure, the pressure touch electrodes 20 in the same pressure touch electrode group 10 are connected to the pressure detection circuit after forming a Wheatstone bridge. At this time, the pressure detection circuit can detect the magnitude and location of the external force acting on the display panel through the Wheatstone bridge, thereby realizing the detection of the pressure on the display panel.

[0059] Optionally, the substrate 1 can be a flexible substrate or a rigid substrate. In one example, the substrate 1 is a flexible substrate, which may include a first flexible material layer, a first inorganic material layer, a semiconductor layer, a second flexible material layer, and a second inorganic material layer stacked sequentially. The materials of the first and second flexible material layers may each include one or more of polyimide (PI), polyethylene terephthalate (PET), and surface-treated polymer films. The materials of the first and second inorganic material layers may each include one or more of silicon nitride (SiNx) and silicon oxide (SiOx) to improve the substrate's resistance to water and oxygen. The material of the semiconductor layer may include amorphous silicon (a-Si).

[0060] Figure 5 This is a circuit connection diagram of the two pressure touch electrodes 20 constituting the Wheatstone bridge and the pressure detection circuit in some embodiments of this disclosure.

[0061] In some embodiments, such as Figure 5 As shown, the pressure detection circuit includes a signal acquisition unit 51 and a power supply 52. ​​The signal acquisition unit 51 measures the signal indicating a change in voltage across the Wheatstone bridge, thereby enabling touch detection.

[0062] The two pressure touch electrodes 20 that constitute the Wheatstone bridge belong to the same pressure touch electrode group 10. Specifically, as shown in... Figure 2 and Figure 5 As shown, the two pressure touch electrodes 20 in the same pressure touch electrode group 10 are the first pressure touch electrode 201 and the second pressure touch electrode 202.

[0063] The first end A of the first pressure touch electrode 201 is electrically connected to the first end of the signal acquisition unit 51 and the first end of the power supply 52, respectively.

[0064] The first end C of the second pressure touch electrode 202 is electrically connected to the second end of the signal acquisition unit 51 and the second end of the power supply 52, respectively.

[0065] The second terminal D of the first pressure touch electrode 201 and the first terminal C of the second pressure touch electrode 202 are electrically connected through a first resistor R1. The first resistor R1 is a resistor with a fixed resistance value.

[0066] The second terminal B of the second pressure touch electrode 202 is electrically connected to the first terminal A of the first pressure touch electrode 201 through a second resistor R2. The second resistor R2 is a resistor with a fixed resistance value.

[0067] Optionally, one of the first and second terminals of the power supply 52 is positive, and the other is negative. For example, in... Figure 5In the illustrated embodiment, the first terminal of the power supply 52 is positive, and the second terminal is negative. As another example, in another instance, the first terminal of the power supply 52 is negative, and the second terminal is positive.

[0068] Similarly, one of the first and second terminals of the signal acquisition device 51 is positive, and the other is negative. Furthermore, the first terminal of the signal acquisition device 51 and the first terminal of the power supply 52 have the same positive and negative polarity.

[0069] In addition, the pressure-sensitive electrode 20 itself has a corresponding resistance value. For example, in... Figure 5 In the embodiment shown, the resistance corresponding to the first pressure touch electrode 201 is equivalent to R3, and the resistance corresponding to the second pressure touch electrode 202 is equivalent to Rx.

[0070] In this embodiment of the present disclosure, after the first end of the power supply 52 is electrically connected to the first end of the signal acquisition device 51 and the second end of the power supply 52 is electrically connected to the second end of the signal acquisition device 51, on the one hand, the power supply 52 can ensure the normal operation of the signal acquisition device 51, and on the other hand, the power supply 52 can also provide electrical signals to the first pressure touch electrode 201 and the second pressure touch electrode 202, thereby ensuring the signal acquisition device 51 detects the pressure of the touch on the display panel.

[0071] Optionally, the power supply 52 is a constant potential power supply, that is, capable of providing a constant potential to the Wheatstone bridge. The magnitude of the constant potential can be set according to the actual application and is not limited here. In this embodiment, the use of constant voltage drive can reduce signal interference between the pressure touch electrode 20 and the conductive layer in the display structure layer 4.

[0072] Optionally, the power supply 52 can provide a constant current to the Wheatstone bridge. The magnitude of the constant current can be set according to the actual application and is not limited here. That is, the pressure touch electrode in this embodiment adopts constant current driving. The use of constant current driving in this embodiment can reduce signal interference between the pressure touch electrode 20 and the conductive layer in the display structure layer 4.

[0073] Figure 6A This is a schematic cross-sectional view of the display panel 100 in the display area in some embodiments of this disclosure. Figure 6B This is a cross-sectional structural diagram of the display panel 100 in the display area in some other embodiments of this disclosure. Figure 6C This is a cross-sectional structural diagram of the display panel 100 in the display area in some embodiments of this disclosure. The display area AA includes pixel areas A1 and interval areas A2 located between pixel areas A1.

[0074] In some embodiments, such as Figure 6A and Figure 6BAs shown, the display structure layer 2 includes a driving circuit layer 21 and a light-emitting device 22 located on the side of the driving circuit layer 21 away from the substrate 1. The light-emitting device 22 includes a first electrode 223 and a second electrode 221, and a light-emitting layer 222 located between the first electrode 223 and the second electrode 221. The second electrode 221 is electrically connected to the driving circuit layer 21, and the first electrode 223 is located on the side of the second electrode 221 away from the substrate 1. The pressure touch electrode 20 is disposed in the same layer as the first electrode 223. That is, in this embodiment of the present disclosure, the pressure touch electrode 20 and the first electrode 221 are formed from the same material layer through the same patterning process, thereby simplifying the fabrication process.

[0075] In other embodiments, such as Figure 6C As shown, the pressure touch electrode 20 and the second electrode 221 are disposed in the same layer. That is, in this embodiment of the present disclosure, the pressure touch electrode 20 and the second electrode 221 are formed from the same material layer through the same patterning process, thereby simplifying the manufacturing process.

[0076] In this embodiment, the pressure touch electrode 20 is disposed in the same layer as the first electrode 223 or the second electrode 221. That is, the pressure touch electrode 20 no longer occupies a separate film layer. Therefore, this embodiment simplifies the film layer structure of the display panel 100 and effectively reduces its thickness. Furthermore, the manufacturing process of the display panel 100 can be simplified by eliminating one manufacturing step, thus reducing costs. Moreover, this embodiment reduces or avoids signal interference problems caused by capacitance and other issues between the pressure touch electrode 20 and the first electrode 223 and second electrode 221 when the pressure touch electrode 20 is a separate film layer.

[0077] Optionally, the light-emitting device 22 can be an organic light-emitting diode (OLED). The OLED can emit, for example, red, green, blue, or white light. The driving circuit layer 21 is electrically connected to the light-emitting device 22 and is used to provide driving signals to the light-emitting device 22.

[0078] Optionally, the second electrode 221 can be a single-layer structure or a multi-layer structure stacked along the thickness direction of the display panel. Each layer can be made of materials such as metal, metal alloy, metal nitride, conductive metal oxide, transparent conductive material, etc.

[0079] Optionally, the light-emitting layer 222 may include small molecule organic materials or polymer molecule organic materials, and may be fluorescent light-emitting materials or phosphorescent light-emitting materials, and may emit red light, green light, blue light, or white light.

[0080] For example, the light-emitting device 22 in the display structure layer 2 may also include other film layers. For example, the light-emitting device 22 may also include: a hole injection layer and a hole transport layer located between the second electrode 221 and the light-emitting layer 222, and an electron transport layer and an electron injection layer located between the light-emitting layer 222 and the first electrode 223. The hole injection layer, hole transport layer, electron transport layer, and electron injection layer may all be single-layer structures or multi-layer structures stacked along the thickness direction of the display panel.

[0081] Optionally, the first electrode 223 may be made of metal, metal alloy, metal nitride, conductive metal oxide, transparent conductive material, etc.

[0082] Optionally, the light-emitting device 22 can adopt a top-emitting structure or a bottom-emitting structure. When a top-emitting structure is adopted, the second electrode 221 includes a conductive material with light-reflective properties or includes a light-reflective film, and the first electrode 223 includes a transparent or translucent conductive material. When a bottom-emitting structure is adopted, the first electrode 223 is made of a conductive material with light-reflective properties or includes a light-reflective film, and the second electrode 221 includes a transparent or translucent conductive material.

[0083] Optionally, the display structure layer 2 includes multiple light-emitting devices 22. The first electrodes 223 of each light-emitting device 22 can be connected as a single unit to form a first electrode layer. Connecting the first electrodes 223 of each light-emitting device 22 as a single unit simplifies the manufacturing process.

[0084] Optionally, such as Figure 6A , Figure 6B and Figure 6C As shown, the driving circuit layer 21 includes a pixel circuit, which may include a plurality of thin-film transistors and at least one storage capacitor. Figure 6A and Figure 6B The embodiment shown illustrates only one thin-film transistor 211 and one storage capacitor 215.

[0085] like Figure 6A , Figure 6B and Figure 6C As shown, the thin-film transistor 211 includes an active layer 230, a gate 220, and source / drain electrode layers, wherein the source / drain electrode layers include a drain 210 and a source 240. The gate 220 is located between the source / drain electrode layers and the active layer 212. In practice, the positional relationship of the active layer 230, gate 220, drain 210, and source 240 can be configured according to actual conditions, and this embodiment does not limit this. The second electrode 221 is electrically connected to one of the drain 210 and the source 240. For example, in... Figure 6A and Figure 6B In the embodiment shown, the second electrode 221 is electrically connected to the drain electrode 210.

[0086] like Figure 6A , Figure 6B and Figure 6C As shown, the storage capacitor 215 includes a first electrode 260 and a second electrode 250 located on the side of the first electrode 260 away from the substrate 1. Optionally, the first electrode 260 may be disposed in the same layer as the gate 220 of the thin film transistor 211, and the second electrode 250 may be disposed in the same layer as the source and drain electrode layers of the thin film transistor 211.

[0087] Optionally, the active layer 31 includes a channel portion and source and drain connection portions located on both sides of the channel portion. The drain connection portion is connected to the drain 210 of the thin-film transistor 211, and the source connection portion is connected to the source 240 of the thin-film transistor 211. Both the source and drain connection portions may be doped with impurities (e.g., N-type or P-type impurities) with a higher impurity concentration than that of the channel portion. The channel portion is directly opposite the gate 220 of the thin-film transistor 211. When the voltage signal applied to the gate 220 reaches a certain value, a carrier path is formed in the channel portion, thereby turning on the drain 210 and source 240 of the thin-film transistor 211.

[0088] Optionally, such as Figure 6A , Figure 6B and Figure 6C As shown, the driving circuit layer 21 further includes a gate insulating layer 212 located between the gate 220 and the active layer 230, an interlayer dielectric layer 213 located between the source / drain electrode layers and the gate 220, and a passivation layer 214 and a planarization layer 216 located between the second electrode 221 and the source / drain electrode layers. The passivation layer 214 is located between the planarization layer 216 and the source / drain electrode layers. The second electrode 221 is electrically connected to the drain 210 through a via penetrating the passivation layer 214 and the planarization layer 216. The drain 210 and the source 240 are electrically connected to the active layer 230 through vias penetrating the interlayer dielectric layer 213.

[0089] Optionally, the gate 220, drain 210, and source 240 may all comprise metallic materials, such as any one or more of silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo). Furthermore, the gate 220, drain 210, and source 240 may be a single-layer structure or a multi-layer structure stacked along the thickness direction of the display panel, wherein each layer may comprise one or more of the aforementioned metals. Optionally, when the gate 220, drain 210, or source 240 comprises multiple metals, they may be alloy materials, such as aluminum-neodymium alloy (AlNd) or molybdenum-niobium alloy (MoNb), or multi-layer stacked structures, such as Ti / Al / Ti.

[0090] Optionally, the active layer 230 may be one or more of the following materials: amorphous indium gallium zinc oxide (a-IGZO), zinc oxynitride (ZnON), indium zinc tin oxide (IZTO), amorphous silicon (a-Si), polycrystalline silicon (p-Si), hexathiophene, and polythiophene.

[0091] Optionally, both the gate insulating layer 212 and the interlayer dielectric layer 213 can be single-layer structures or multi-layer structures stacked along the thickness direction of the display panel. Each layer can be prepared by any one or more combinations of silicon oxide (SiOx), silicon nitride (SiNx), and silicon oxynitride (SiON).

[0092] Optionally, the material of the passivation layer 214 may include a silicon compound, for example, at least one of silicon oxide, silicon nitride, or silicon oxynitride.

[0093] Optionally, the planarization layer 216 is made of an organic insulating material. For example, the organic insulating material may include one or more resin-based materials such as polyimide, epoxy resin, acrylic, polyester, photoresist, polyacrylate, polyamide, and siloxane. The organic insulating material may also be elastic; for example, it may include one or more elastic materials such as urethane and thermoplastic polyurethane (TPU).

[0094] Optionally, such as Figure 6A , Figure 6B and Figure 6C As shown, the display structure layer 2 further includes a pixel defining layer 23 located on the side of the driving circuit layer 21 away from the substrate 1. The pixel defining layer 23 defines a pixel opening. At least a portion of the light-emitting device 22 is located within the pixel opening. For example, in... Figure 6A and Figure 6B In the embodiment shown, the second electrode 221 is located inside the pixel opening, the light-emitting layer 222 is located inside the pixel opening, a portion of the first electrode 223 is located inside the pixel opening, and another portion of the first electrode 223 is located on the side of the pixel limiting layer 23 away from the substrate 1.

[0095] Optionally, the material of the pixel defining layer 23 may include one or more organic insulating materials such as polyimide, polyphthalamide, polyphthalamide, acrylic resin, benzocyclobutene, or phenolic resin.

[0096] In this embodiment, the pressure touch electrode 20 and the first electrode 223 are disposed in the same layer, allowing the pressure touch electrode 20 to be fabricated simultaneously with the first electrode 223 of the light-emitting device 22. Therefore, this embodiment simplifies the fabrication process and reduces fabrication costs. Furthermore, the constant current drive used in the pressure detection circuit in this embodiment ensures the stability of the pressure detection circuit signal and reduces signal interference between the first electrode 223 and the pressure touch electrode 20.

[0097] In some embodiments, such as Figure 6A As shown, the pressure touch electrode 20 and the first electrode 223 are disposed on the same layer, and the orthographic projections of the pressure touch electrode 20 and the first electrode 223 on the substrate 1 do not overlap. That is, the pressure touch electrode 20 and the first electrode 223 are electrically insulated. In this case, the first electrode 223 is not a continuous planar structure of the entire layer, but a patterned structure. Specifically, the pressure touch electrode 20 is located in the spacing region A2 and on the side of the pixel defining layer 23 away from the substrate 1, the first electrode 223 is located in the pixel region A1, and at least a portion of the first electrode 223 is located in the pixel opening.

[0098] In this embodiment of the disclosure, both the pressure touch electrode 20 and the first electrode 223 can operate independently. For example, the pressure touch electrode 20 can operate alone, the first electrode 223 can operate alone, or the pressure touch electrode 20 and the first electrode 223 can operate simultaneously.

[0099] For example, in Figure 3B and Figure 4 In the embodiment, the display area AA contains other free areas besides the pressure touch electrode 20 already shown, and the first electrode 223 is located in these free areas. Of course, those skilled in the art will clearly understand that the first electrode 223 and the pressure touch electrode 20 are fabricated simultaneously, i.e., using the same mask in the same fabrication process.

[0100] In some embodiments, such as Figure 6B As shown, the pressure touch electrode 20 and the first electrode 223 are disposed on the same layer, and the pressure touch electrode 20 and the first electrode 223 are an integral structure. This integral structure is used to receive display driving signals during the display phase and touch driving signals during the touch phase. That is, during the touch phase, the integral structure serves as the pressure touch electrode 20. During the display phase, the integral structure serves as the first electrode 223.

[0101] In this embodiment of the present disclosure, the pressure touch electrode 20 and the first electrode 223 are an integral structure. It can be understood that the pressure touch electrode 20 and the first electrode 223 are the same electrode. In the display stage, the electrode receives the display driving signal to enable the display panel to display the image, and in the touch stage, it receives the touch driving signal to ensure the touch function of the display panel.

[0102] Alternatively, in this embodiment of the present disclosure, the pressure touch electrode 20 and the first electrode 223 are an integral structure. It can also be understood that when the first electrode 223 of the light-emitting device 22 is fabricated, the first electrode 223 is patterned so that the shape of the first electrode 223 meets the shape requirements of the pressure touch electrode 20 in this embodiment of the present disclosure, so that the first electrode 223 can also be used as the pressure touch electrode 20.

[0103] In this embodiment, the integrated structure receives a display driving signal during the display phase, which can be a cathode signal; that is, the display panel 100 has a screen display function at this time. Also, the integrated structure receives a touch driving signal during the touch phase, and the display panel 100 has a touch function at this time. Thus, the touch function and display function of the display substrate 100 in this embodiment are completed independently at different stages. Therefore, this embodiment can further avoid problems such as short circuits that may occur when the pressure touch electrode 20 and the first electrode 223 are two electrically insulated electrodes, as well as signal interference problems that occur when the pressure touch electrode 20 and the first electrode 223 are two electrically insulated electrodes and work simultaneously.

[0104] For example, Figure 3A , Figure 3B and Figure 4 The pressure touch electrode 20 shown is also the first electrode 223, and receives the display drive signal during the display phase and the touch drive signal during the touch phase.

[0105] Specifically, in Figure 3B The blank area shown, excluding the pressure touch electrode 20, is used to prepare the first electrode 223. Figure 3C It shows in Figure 3B A planar structural diagram of the first electrode 223 fabricated in the blank area excluding the pressure touch electrode 20. Figure 3B and Figure 3C Combining is Figure 3A The structure shown is included. Figure 3A The pressure touch electrode 20 and the first electrode 223 can be an integral structure or electrically insulated from each other. They can be selected according to actual needs to meet the needs of different display devices.

[0106] In some embodiments, such as Figure 6CAs shown, the pressure touch electrode 20 and the second electrode 221 are disposed on the same layer, and the orthographic projections of the pressure touch electrode 20 and the second electrode 221 on the substrate 1 do not overlap. That is, the pressure touch electrode 20 and the second electrode 221 are electrically insulated. Further, the pressure touch electrode 20 is located in the spacing region A2, the second electrode 221 is located in the pixel region A1, and the pressure touch electrode 20 is located on the side of the pixel limiting layer 23 near the substrate 1.

[0107] In some embodiments, such as Figure 3A , Figure 3B and Figure 4 As shown, the pressure touch electrode 20 extends along a first direction. Multiple pressure touch electrodes 20 in the pressure touch electrode assembly 10 are arranged along a second direction. The second direction intersects the first direction.

[0108] In fact, in this embodiment, the pressure touch electrode 20 may or may not have an extension direction, and the extension direction of the pressure touch electrode 20 can be arbitrary; different pressure touch electrodes 20 may have the same or different extension directions. Multiple pressure touch electrode groups 10 may or may not have an arrangement direction, and the arrangement direction of multiple pressure touch electrode groups 10 can be arbitrary. Whether the pressure touch electrodes 20 in the same pressure touch electrode group 10 are arranged along a certain direction, and the setting of the arrangement direction, can also be selected according to actual needs. In different pressure touch electrode groups 10, the arrangement direction of the pressure touch electrodes 20 can be the same or different. The length of each pressure touch electrode 20 can be the same or different; this embodiment does not limit this.

[0109] To simplify the manufacturing process and reduce costs, in this embodiment, the pressure touch electrode 20 extends along a first direction, and multiple pressure touch electrodes 20 in the same pressure touch electrode group 10 are arranged along a second direction. The second direction intersects the first direction.

[0110] Optionally, the first direction and the second direction are perpendicular.

[0111] Further optionally, one of the first direction and the second direction can be the extending direction of the display panel 100, and the other is a direction perpendicular to the extending direction of the display panel. For example, in... Figure 3A and Figure 3B In the embodiment shown, the display panel 100 extends along a second direction, where the first direction is perpendicular to the extension direction of the display panel 100.

[0112] In fact, the first direction can be any direction. For example, in... Figure 4 In the embodiment shown, the angle between the first direction and the extending direction of the display panel 100 is an acute angle.

[0113] Figure 7 This is a schematic diagram of the structure of the pressure touch electrode 20 in some embodiments of this disclosure. Figure 8 This is a schematic diagram of the structure of the pressure touch electrode 20 in other embodiments of this disclosure.

[0114] In some embodiments, such as Figure 3A , Figure 3B , Figure 4 , Figure 7 and Figure 8 As shown, the pressure touch electrode 20 includes a plurality of pressure touch units 30 arranged along a first direction and electrically connected in sequence; wherein, the pressure touch unit 30 is zigzag-shaped.

[0115] In this embodiment, the pressure touch unit 30 is configured in a zigzag shape, which can increase the area ratio of the pressure touch unit 30 in the display area AA, thereby ensuring the sensing ability and sensitivity of the pressure touch unit 30 to the pressure at various positions of the display panel 100.

[0116] Optionally, the pressure touch unit 30 has a first connection terminal 31 and a second connection terminal 32.

[0117] Optionally, the first connection terminal 31 and the second connection terminal 32 of the pressure touch unit 30 can be disposed on the same side of the respective pressure touch unit 30. In this case, the structural schematic diagram of each pressure touch unit 30 can be as follows: Figure 7 As shown.

[0118] Optionally, the first connection end 31 and the second connection end 32 of the pressure touch unit 30 can be disposed on different sides of the respective pressure touch unit 30. For example, the first connection end 31 and the second connection end 32 of the pressure touch unit 30 can be located on opposite sides of the pressure touch unit 30. In this case, the structural schematic diagram of the pressure touch unit 30 can be as follows: Figure 8 As shown.

[0119] In this embodiment of the disclosure, the positions of the first connection terminal 31 and the second connection terminal 32 in each pressure touch unit 30 of the same pressure touch electrode 20 can be the same or different. For example, in... Figure 7 In the pressure touch electrode 20 shown, the first connection end 31 and the second connection end 32 of each pressure touch unit 30 are located on the same side of the corresponding pressure touch unit 30. For example, in a certain pressure touch electrode 20, the first connection end 31 and the second connection end 32 of at least one pressure touch unit 30 are located on the same side of the corresponding pressure touch unit 30, and the first connection end 31 and the second connection end 32 of at least one pressure touch unit 30 are located on different sides of the corresponding pressure touch unit 30.

[0120] Figure 9This is a partial planar schematic diagram of the display panel in the display area in some embodiments of this disclosure. Figure 10 This is a partial planar schematic diagram of the display panel in the display area in some other embodiments of this disclosure. Figure 11 This is a partial planar schematic diagram of the display panel in the display area in some embodiments of this disclosure. Figure 12 This is a partial planar schematic diagram of the display panel in the display area in some embodiments of this disclosure.

[0121] In some embodiments, such as Figures 9 to 12 As shown, the display area AA includes multiple pixel areas A1 and spacing areas A2 located between the pixel areas A1. The color of the light emitted from the pixel area A1 can be red, blue, green, or white, etc., and this disclosure does not limit this. The orthographic projection of the pixel area A1 on the substrate 1 covers the orthographic projection of the pixel opening defined by the pixel defining layer 8 on the substrate 1. The multiple pixel areas A1 are arranged in multiple rows and columns. Furthermore, the orthographic projections of the pixel areas A1 and the pressure touch electrode 20 on the substrate 1 do not overlap. It is understood that the orthographic projections of the pixel areas A1 and the pressure touch unit 30 on the substrate 1 do not overlap. The orthographic projection of the spacing area A2 on the substrate 1 covers the orthographic projection of the pressure touch electrode 20 on the substrate 1.

[0122] The embodiments disclosed herein ensure that the orthographic projections of pixel area A1 and pressure touch electrode 20 on substrate 1 do not overlap, thereby guaranteeing the light transmission effect of display area AA.

[0123] In some embodiments, such as Figure 9 and Figure 10 As shown, the pressure touch unit 30 includes multiple first wires 301 extending in the row direction along the pixel area A1 and multiple second wires 302 extending in the column direction along the pixel area A1, wherein the arrangement direction of the multiple second wires 302 is the row direction of the pixel area A1. Two adjacent second wires 302 are connected by first wires 301, and two adjacent first wires 301 are respectively connected to the two ends of the same second wire 302.

[0124] In some embodiments, such as Figure 11 and Figure 12As shown, the pressure touch unit 30 includes multiple first wires 301 extending in the column direction along the pixel area A1 and multiple second wires 302 extending in the row direction along the pixel area A1. The arrangement direction of the multiple second wires 302 is the column direction of the pixel area A1. Adjacent second wires 302 are connected by first wires 301, and adjacent first wires 301 are respectively connected to both ends of the same second wire 302. Furthermore, by arranging the multiple second wires 302 in the column or row direction of the pixel area A1, connecting adjacent second wires 302 by first wires 301, and connecting adjacent first wires 301 to both ends of the same second wire 302, the connection between the first wires 301 and the second wires 302 can further avoid the pixel area A1 during the interconnection process, thereby preventing the pressure touch electrode 20 from affecting the light transmission effect of the display area AA.

[0125] In fact, in any of the embodiments disclosed, the shapes of each pressure touch electrode 20 and each pressure touch unit 30 can be set according to the user's actual needs to adapt to the requirements of different display panels 100. For example, in... Figure 10 In the illustrated embodiment, the pressure touch unit 30 is generally shaped like a comb. The second wire 302, the first wire 301, and the second wire 302 connected in sequence form the teeth of the comb. The arrangement direction of the multiple comb teeth is the same as the arrangement direction of the multiple second wires 302.

[0126] By setting the extension direction of the first wire 301 and the second wire 302, as well as the arrangement direction of the second wire 302, the structure of the pressure touch unit 30 can be simplified, thereby facilitating the arrangement of the pressure touch unit 30 in the display area. Furthermore, the arrangement of the pressure touch electrode 20 can be simplified, thereby reducing the overall manufacturing difficulty and cost.

[0127] In some embodiments, such as Figures 9 to 12 As shown, there is at least one pixel region A1 on the substrate 1 between the orthogonal projections of two adjacent second conductors 302 on the substrate 1.

[0128] In this embodiment of the disclosure, at least one pixel region A1 is projected onto the substrate 1 between the orthogonal projections of two adjacent second conductors 302 onto the substrate 1.

[0129] In some embodiments, such as Figure 2 As shown, the display panel 100 also includes an encapsulation layer 3 located on the side of the display structure layer 2 away from the substrate 1. The encapsulation layer 3 covers the pixel defining layer 23 and the light-emitting device 22, and is used to encapsulate the light-emitting device 22 to prevent moisture and / or oxygen in the external environment from corroding the light-emitting device 22.

[0130] Optionally, the material of the encapsulation layer 3 is an insulating material.

[0131] Optionally, such as Figure 6A and Figure 6B As shown, the encapsulation layer 3 includes a first sub-encapsulation layer 31, a second sub-encapsulation layer 32, and a third sub-encapsulation layer 33, which are located on the side of the light-emitting device 22 away from the substrate 1 and are arranged sequentially in the direction away from the substrate 1.

[0132] In some embodiments, the materials of the first sub-encapsulation layer 31 and the third sub-encapsulation layer 33 may both include inorganic materials, while the material of the second sub-encapsulation layer 32 may include organic materials. Optionally, the first sub-encapsulation layer 31 and the third sub-encapsulation layer 33 may be prepared using at least one of highly dense inorganic materials such as silicon oxynitride (SiON), silicon oxide (SiOx), and silicon nitride (SiNx). The second sub-encapsulation layer 32 may be made using a polymeric material containing a desiccant and / or capable of blocking moisture. For example, a polymeric resin may be used to alleviate the stress on the first sub-encapsulation layer 31 and the third sub-encapsulation layer 33, and it may also include a desiccant or other water-absorbing material to absorb water, oxygen, and other substances that penetrate the interior.

[0133] This disclosure also provides a display device, including a display panel 100 as described in any embodiment of this disclosure.

[0134] The principle by which the display device in this embodiment solves the problem is similar to that of the display panel 100 in any of the foregoing embodiments of this disclosure, and therefore will not be described again. The display device in this embodiment has high integration and is relatively thin and light.

[0135] It should be noted that the display panel and display device in the embodiments of the present invention may also include other structures.

[0136] For example, such as Figure 2 As shown, the side of the encapsulation layer 3 away from the substrate 1 may also be provided with an insulating layer 5, a polarizing layer 6, an optical adhesive 7, and a cover layer 8 in sequence along the direction away from the substrate.

[0137] Other structures similar to those described above can be determined according to actual needs, and will not be described in detail in this disclosure, nor will they be limited herein.

[0138] In some embodiments of this disclosure, two pressure touch electrodes form a Wheatstone bridge. Therefore, touch detection can be achieved by detecting the signal of voltage change across the Wheatstone bridge. The power supply in the Wheatstone bridge can be an adjustable output potential power supply, providing a constant current to the Wheatstone bridge, i.e., the Wheatstone bridge uses constant current drive. Therefore, even when the pressure touch electrode 20 and the first electrode 223 are different electrodes and operate simultaneously, the touch detection process will not be affected by noise in the display structure layer 2. For example, the pressure touch electrode 20 will not be affected by noise interference from the first electrode 223 in the display structure layer 2, thereby ensuring measurement accuracy.

[0139] In other embodiments of this disclosure, the pressure touch electrode 20 and the first electrode 223 are an integral structure, or the pressure touch electrode 20 and the second electrode 221 are an integral structure. In this case, the integral structure receives the touch driving signal during the touch phase and the display driving signal during the display phase. That is to say, the first electrode 223 and the pressure touch electrode 20 will not work at the same time, or the second electrode 221 and the pressure touch electrode 20 will not work at the same time. Therefore, the touch detection process will not generate noise interference to the display structure layer 2. At the same time, the first electrode 221 and the second electrode 223 in the display structure layer 2 will not generate noise interference to the touch detection process when they are working, thereby ensuring the accuracy of the measurement.

[0140] In this embodiment of the disclosure, the display device can be an OLED display device, specifically applicable to display devices such as tablet computers and mobile phones.

[0141] The display device in this disclosure can specifically include any device or product with display functionality. For example, the display device can be a smartphone, mobile phone, e-book reader, desktop computer (PC), laptop PC, netbook PC, personal digital assistant (PDA), portable multimedia player (MP), digital audio player, mobile medical device, camera, wearable device (e.g., head-mounted device, electronic clothing, electronic bracelet, electronic necklace, electronic accessory, electronic tattoo, or smartwatch), television set, etc.

[0142] In some embodiments, this disclosure also provides a method for manufacturing a display panel, comprising the following steps:

[0143] Step S10: Provide substrate 1.

[0144] Step S20: A display structure layer 2 and a pressure touch electrode group 10 located in the display area are formed on one side of the substrate 1. The pressure touch electrode group 10 includes at least two pressure touch electrodes 20, and the two pressure touch electrodes 20 in the same pressure touch electrode group 10 form a Wheatstone bridge. Furthermore, the pressure touch electrodes 20 are formed simultaneously with a portion of the film layer in the display structure layer 2.

[0145] In some embodiments, the step of forming the display structure layer 2 includes:

[0146] Step S21: Form the driving circuit layer 21 in the display structure layer 2.

[0147] Step S22: Form a second electrode 221 for the light-emitting device 22 located on the side of the driving circuit layer 21 away from the substrate 1. The second electrode 221 is electrically connected to the driving circuit layer 21.

[0148] Step S23: Form a first electrode 223 located on the side of the second electrode 221 away from the substrate 1.

[0149] The pressure touch electrode 20 is formed synchronously with the first electrode 223 in step S23, or the pressure touch electrode 20 is formed synchronously with the second electrode 221 in step S22.

[0150] In this embodiment, the pressure touch electrode 20 is formed in the display structure layer 2, and is formed simultaneously with the first electrode 223 or the second electrode 221. Touch detection can be achieved without increasing the thickness of the display panel. At the same time, it can simplify the manufacturing process and reduce the manufacturing cost.

[0151] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A display panel having a display area; characterized in that, The display panel includes: Substrate; A display structure layer located on one side of the substrate; the display structure layer is located in the display area; At least one pressure touch electrode group located in the display area, the pressure touch electrode group including at least two pressure touch electrodes, the pressure touch electrodes being disposed in the same layer as a portion of the film layer in the display structure layer; The pressure touch electrodes in the same pressure touch electrode group form a Wheatstone bridge.

2. The display panel according to claim 1, characterized in that, The display structure layer includes a driving circuit layer and a light-emitting device located on the side of the driving circuit layer away from the substrate; the light-emitting device includes a first electrode and a second electrode, the second electrode being electrically connected to the driving circuit layer, and the first electrode being located on the side of the second electrode away from the substrate. The pressure touch electrode is disposed in the same layer as the first electrode; or, the pressure touch electrode is disposed in the same layer as the second electrode and is insulated from it.

3. The display panel according to claim 2, characterized in that, The pressure-sensitive electrode is disposed on the same layer as the first electrode; the orthographic projections of the pressure-sensitive electrode and the first electrode on the substrate do not overlap.

4. The display panel according to claim 2, characterized in that, The pressure touch electrode is disposed in the same layer as the first electrode; the pressure touch electrode and the first electrode are an integral structure, and the integral structure is used to receive display driving signals during the display stage and touch driving signals during the touch stage.

5. The display panel according to any one of claims 1 to 4, characterized in that, The pressure touch electrode extends along a first direction; multiple pressure touch electrodes in the same pressure touch electrode group are arranged along a second direction; the second direction intersects the first direction.

6. The display panel according to claim 5, characterized in that, The pressure touch electrode includes a plurality of pressure touch units arranged along the first direction and electrically connected in sequence; the pressure touch unit is zigzag-shaped.

7. The display panel according to claim 6, characterized in that, The display area includes multiple pixel areas; the multiple pixel areas are arranged in multiple rows and columns; the pixel areas do not overlap with the orthographic projection of the pressure touch electrode on the substrate. The pressure touch unit includes multiple first wires extending in the row direction along the pixel area and multiple second wires extending in the column direction along the pixel area, with the multiple second wires arranged in the row direction; or, the pressure touch unit includes multiple first wires extending in the column direction along the pixel area and multiple second wires extending in the row direction along the pixel area, with the multiple second wires arranged in the column direction. Two adjacent second wires are connected through the first wire, and two adjacent second wires are respectively connected to the two ends of the same first wire.

8. The display panel according to claim 7, characterized in that, There is at least one orthogonal projection of the pixel region onto the substrate between the orthogonal projections of two adjacent second conductors onto the substrate.

9. The display panel according to any one of claims 1 to 4, characterized in that, The pressure detection circuit includes a signal acquisition unit and a power supply; the pressure touch electrode group includes two pressure touch electrodes, and the two pressure touch electrodes in the same pressure touch electrode group are a first pressure touch electrode and a second pressure touch electrode; The first end of the first pressure touch electrode is electrically connected to the first end of the signal acquisition device and the first end of the power supply, respectively. The first end of the second pressure touch electrode is electrically connected to the second end of the signal acquisition device and the second end of the power supply, respectively; The second end of the first pressure touch electrode is electrically connected to the first end of the second pressure touch electrode through a first resistor; The second end of the second pressure touch electrode is electrically connected to the first end of the first pressure touch electrode through a second resistor.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 9.

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