Display panel and display device

Abstract

The utility model provides a display panel and a display device. The display panel includes: a substrate; the touch electrode is positioned on one side of the substrate; the electric shielding layer is located on the side, close to the substrate, of the touch electrode, and the orthographic projection of the touch electrode on the substrate is located in the orthographic projection of the electric shielding layer on the substrate; at least part of the insulating layer is located between the electric shielding layer and the touch electrode, and the orthographic projection of the touch electrode on the substrate is located in the orthographic projection of the insulating layer on the substrate.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide range of applications, becoming the mainstream of display devices.

[0003] However, the structure of current OLED display products needs to be optimized. Utility Model Content

[0004] In view of this, embodiments of this application provide a new display panel to at least partially solve the above-mentioned problems.

[0005] According to a first aspect of the present application, a display panel is provided, comprising: a substrate; a touch electrode auxiliary electrode layer located on one side of the substrate; the auxiliary electrode layer including an auxiliary cathode and a touch electrode, the auxiliary cathode and the touch electrode being disposed in the same layer; an electrical shielding layer located on the side of the touch electrode auxiliary electrode layer near the substrate, wherein the orthographic projection of the touch electrode on the substrate is located within the orthographic projection of the electrical shielding layer on the substrate; and an insulating layer at least partially located between the electrical shielding layer and the touch electrode auxiliary electrode layer, wherein the orthographic projection of the touch electrode on the substrate is located within the orthographic projection of the insulating layer on the substrate.

[0006] In some alternative embodiments, the display panel further includes an isolation structure located on the side of the electrical shielding layer away from the substrate; preferably, the touch electrode and the isolation structure are disposed in the same layer.

[0007] In some alternative embodiments, the touch electrode and the isolation structure are insulated from each other; preferably, the display panel includes a plurality of isolation structures, which are electrically connected to each other; preferably, an isolation space is provided between the touch electrode and the isolation structure; preferably, the display panel further includes an encapsulation layer, at least a portion of which is located on the side of the touch electrode away from the substrate; preferably, the encapsulation layer partially fills the isolation space.

[0008] In some optional embodiments, the display panel further includes a display functional layer, which includes a pixel definition layer and a light-emitting device located on the substrate. The pixel definition layer has a pixel opening, and at least a portion of the light-emitting device is located in the pixel opening. Preferably, the light-emitting device includes a first electrode, a light-emitting functional layer, and a second electrode arranged sequentially in a direction away from the substrate. At least a portion of the first electrode is exposed through the pixel opening, and the light-emitting functional layer is located within the pixel opening. Preferably, the insulating layer is the pixel definition layer. Preferably, the orthographic projection of the electrical shielding layer on the substrate does not overlap with the orthographic projection of the pixel opening on the substrate.

[0009] In some alternative embodiments, the pixel definition layer includes a first pixel definition layer and a second pixel definition layer, the second pixel definition layer being located on the side of the touch electrode closer to the substrate, and the first pixel definition layer being located between the second pixel definition layer and the substrate; the electrical shielding layer is located between the first pixel definition layer and the second pixel definition layer; preferably, the pixel opening includes a first pixel opening formed in the first pixel definition layer and a second pixel opening formed in the second pixel definition layer, and the orthographic projection of the first pixel opening on the substrate coincides with the orthographic projection of the second pixel opening on the substrate.

[0010] In some alternative embodiments, the display panel includes an isolation structure comprising a first end and a second end opposite to each other in the thickness direction of the substrate. The first end is located on the side of the isolation structure closer to the substrate, and the second end is located on the side of the isolation structure farther from the substrate. The orthographic projection of the first end on the substrate is within the orthographic projection of the second end on the substrate. Furthermore, the isolation structure defines a plurality of isolation openings, and the orthographic projection of the pixel openings on the substrate is within the orthographic projection of the isolation openings on the substrate.

[0011] In some alternative embodiments, the isolation structure includes a first isolation portion and a second isolation portion, the first isolation portion constituting the first end portion and the second isolation portion constituting the second end portion; preferably, the touch electrode is disposed in the same layer as at least one of the first isolation portion and the second isolation portion; preferably, the touch electrode includes a first portion and a second portion, the first portion being located on the side of the touch electrode closer to the substrate, the second portion being located on the side of the touch electrode away from the substrate, the first portion of the touch electrode being disposed in the same layer as the first isolation portion, and the second portion of the touch electrode being disposed in the same layer as the second isolation portion.

[0012] In some optional embodiments, the isolation structure includes a first isolation portion, a second isolation portion, and a third isolation portion, wherein the first isolation portion constitutes the first end portion, the second isolation portion constitutes the second end portion, and the third isolation portion is located between the first isolation portion and the second isolation portion, and the orthographic projection of the third isolation portion on the substrate is located within the orthographic projection of the first isolation portion on the substrate; preferably, the touch electrode is disposed in the same layer as at least one of the first isolation portion, the second isolation portion, and the third isolation portion; preferably, the touch electrode includes a first portion, a second portion, and a third portion, wherein the first portion is located on the side of the touch electrode closer to the substrate, the second portion is located on the side of the touch electrode away from the substrate, and the third portion is located between the first portion and the second portion, wherein the first portion of the touch electrode is disposed in the same layer as the first isolation portion, the second portion of the touch electrode is disposed in the same layer as the second isolation portion, and the third portion is disposed in the same layer as the third isolation portion.

[0013] In some alternative embodiments, the first isolation portion is made of titanium, the second isolation portion is made of aluminum, and the third isolation portion is made of molybdenum.

[0014] In some alternative embodiments, the electrical shielding layer is connected to a voltage source; preferably, the material of the electrical shielding layer includes at least one of titanium, aluminum, and molybdenum; preferably, the same-layer arrangement refers to being located in the same layer and / or being made of the same material.

[0015] This application embodiment also provides another display panel, including: a substrate; a touch electrode located on one side of the substrate; an electrical shielding layer located on the side of the touch electrode near the substrate, wherein the orthographic projection of the touch electrode on the substrate lies within the orthographic projection of the electrical shielding layer on the substrate; an insulating layer located at least partially between the electrical shielding layer and the touch electrode, wherein the orthographic projection of the touch electrode on the substrate lies within the orthographic projection of the insulating layer on the substrate; an isolation structure located on the side of the electrical shielding layer away from the substrate, wherein the isolation structure defines a plurality of isolation openings; and a display functional layer disposed on one side of the substrate and including a plurality of light-emitting devices partially located within corresponding isolation openings.

[0016] This application also provides a display device, including the display panel described in any of the above embodiments.

[0017] In this embodiment, the display panel may include a substrate, touch electrodes, an electrical shielding layer, and an insulating layer. The touch electrodes are located on one side of the substrate; the electrical shielding layer is located on the side of the touch electrodes closest to the substrate, with the orthographic projection of the touch electrodes onto the substrate falling within the orthographic projection of the electrical shielding layer onto the substrate. This reduces electric field coupling or induction between the touch electrodes and circuit elements on the substrate, preventing crosstalk between the electrical signals of the touch electrodes and the electrical signals within the circuit elements on the substrate. The insulating layer is at least partially located between the electrical shielding layer and the touch electrodes, and the orthographic projection of the touch electrodes onto the substrate falls within the orthographic projection of the insulating layer onto the substrate. This prevents electrical connection between the touch electrodes and the electrical shielding layer, ensuring the effectiveness of the electrical shielding layer in reducing electric field coupling. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is an exemplary structural diagram of a display device according to an embodiment of this application;

[0020] Figure 2 This is an exemplary structural diagram of a display panel according to an embodiment of this application;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 Along some embodiments provided Figure 3 A sectional view taken along line C1-C2 in the diagram;

[0023] Figure 5 Along some embodiments provided Figure 3 A sectional view taken by lines D1-D2 in the diagram;

[0024] Figure 6 For other embodiments provided along Figure 3 A sectional view taken along line C1-C2 in the diagram;

[0025] Figure 7 For some other embodiments provided along Figure 3 The sectional view taken from line C1-C2 in the figure.

[0026] Figure label:

[0027] 1. Display device; 10. Display panel; 100. Substrate; 210. Touch electrode; 220. Isolation structure; 221. First end; 222. Second end; 223. Isolation opening; 224. First isolation portion; 225. Second isolation portion; 226. Third isolation portion; 230. Isolation space; 300. Electrical shielding layer; 400. Insulating layer; 500. Display function layer; 510. Pixel definition layer; 511. Pixel opening; 512. First pixel definition layer; 513. Second pixel definition layer; 520. Light-emitting device; 521. First electrode; 522. Light-emitting function layer; 523. Second electrode; AA. Display area; SA. Non-display area. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art should fall within the protection scope of the embodiments of this application.

[0029] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in the embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0030] It should be understood that in the description of the embodiments of this application, the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the scheme of the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0031] Furthermore, when an element or layer is referred to as being "on" another element or layer, "connected to," or "bonded to" another element or layer, the element or layer may be directly on the other element or layer, directly connected to, or directly bonded to the other element or layer, or there may be intermediate elements or layers. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to," or "directly bonded to" another element or layer, there are no intermediate elements or layers.

[0032] The terms First, Second, etc., are used to describe various elements, components, regions, layers, and / or parts, but these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, and / or part from another element, component, region, layer, and / or part.

[0033] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] The specific implementation of the embodiments of this application will be further described below with reference to the accompanying drawings.

[0035] The relevant structural parts mentioned below, such as the content of the isolation structure, are found in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072. Further descriptions are provided in CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0036] The figure is a schematic diagram of an exemplary structure of a display device 1 according to an embodiment of this application.

[0037] See Figure 1This application provides a display device 1. The display device 1 is an electronic device with image (including static images or dynamic images, wherein the dynamic image may be video) display function. For example, the display device 1 may be any one of the following: monitor, television, billboard, digital photo frame, laser printer with display function, telephone, mobile phone, personal digital assistant (PDA), digital camera, portable camcorder, viewfinder, navigator, large-area wall, home appliance, information query device (such as business query device for e-government, bank, hospital, power and other departments), monitor, electronic display screen, virtual reality (VR) display device, augmented reality (AR) display device, and vehicle display, but is not limited thereto.

[0038] In some embodiments, see continue to see Figure 1 The display device 1 may include a display panel 10. Exemplarily, the display panel 10 may be a self-emissive display panel 10, such as an organic light-emitting diode (OLED) display panel 10, a quantum dot light-emitting diode (QLED) display panel 10, or a mini LED (or micro LED) display panel 10. In optional embodiments of this application, the display panel 10 included in the display device 1 may be the display panel 10 described in any of the following embodiments.

[0039] For ease of description below, an XYZ coordinate system is established. The first direction X and the second direction Y are both parallel to the plane containing the display side of the display panel 10, and they intersect. For example, the first direction X and the second direction Y are perpendicular to each other. The third direction Z is perpendicular to the plane containing the display side of the display panel 10.

[0040] See Figure 2 The display panel 10 has a display area AA and a non-display area SA, wherein the display area AA is the area on the display panel 10 used to display the image, and the non-display area SA is the area on the display panel 10 other than the display area AA. The non-display area SA may be located on at least one side of the display area AA (e.g., one side, or multiple sides), for example, the non-display area SA may be arranged around the display area AA.

[0041] The display area AA contains multiple pixels. Multiple pixel arrays are arranged within the display area AA, and each pixel includes multiple sub-pixels. Each sub-pixel can display a single color. For example, the pixels in the display area AA may include a first sub-pixel, a second sub-pixel, and a third sub-pixel, used to display red, green, or blue, respectively. In this case, the first sub-pixel is the red sub-pixel R, the second sub-pixel is the green sub-pixel G, and the third sub-pixel is the blue sub-pixel B. The multiple sub-pixels can be arranged in the display area AA according to a specified rule. For example, the multiple sub-pixels are arranged in multiple rows and columns. Since each sub-pixel corresponds to a pixel driving circuit, the pixel driving circuits are also arranged in multiple rows and columns.

[0042] It should be noted that a subpixel is the smallest unit for displaying images within the display panel 10. Figure 3 for Figure 2 A magnified view of a portion of point A, where each subpixel can include... Figure 3 The diagram shows a light-emitting device 520 (described in detail below) and a pixel driving circuit that controls the light emission of the light-emitting device 520. That is, one sub-pixel corresponds to one pixel driving circuit. The pixel driving circuit can be configured to write a data signal in response to a received scan signal and drive the light-emitting device 520 to emit light through this electrical signal. The brightness of the light-emitting device 520 can be positively correlated with the voltage value of the data signal line. By adjusting the brightness of different sub-pixels, color superposition can achieve the display of multiple colors.

[0043] The display panel 10 provided in the embodiments of this application will now be described in detail.

[0044] like Figure 3 and Figure 4 As shown, the display panel 10 includes: a substrate 100, a touch electrode 210, an electrical shielding layer 300, and an insulating layer 400.

[0045] For example, the substrate 100 can be a rigid substrate 100. The material of the rigid substrate 100 can be glass or polymethyl methacrylate (PMMA), etc. The substrate 100 can also be a flexible substrate 100. The material of the flexible substrate 100 can be polyethylene terephthalate (PET), polyethylene naphthalate (PEN), ultrathin glass, or polyimide (PI), etc.

[0046] Touch electrode 210 is located on one side of substrate 100. As a possible implementation, touch electrode 210 may include a driving electrode and a sensing electrode. Both the driving electrode and the sensing electrode are connected to the touch chip. During operation, the touch chip can input a pulse voltage to the driving electrode, causing the driving electrode to generate an electric field and a corresponding capacitance between the driving electrode and the sensing electrode. By detecting the current or voltage signal of the sensing electrode, the touch chip can detect the capacitance between the driving electrode and the segment on the sensing electrode that intersects with the orthographic projection of the driving electrode onto it. When a finger touches the touch screen, it blocks the electric field lines between the driving electrode and the sensing electrode, reducing the capacitance between the segment on the sensing electrode at the finger's touch location and the driving electrode. Based on the detected location of the segment with reduced capacitance, the touch chip can determine the finger's touch position and thus perform corresponding control operations based on the finger's touch position.

[0047] The touch electrode 210 is made of a conductive material. This conductive material may include metals or metal oxides, such as metals including titanium (Ti) or silver (Ag), or alloys formed from various metals including titanium (Ti) and silver (Ag), or materials with high work functions including indium tin oxide (ITO) or indium zinc oxide (IZO), or composite materials of the above conductive materials.

[0048] The driving electrode and the sensing electrode can be arranged in the same layer. Within the touch electrode 210, the driving electrode and the sensing electrode can be arranged in parallel, cross-shaped, or combined in other suitable ways, all of which are within the protection scope of the embodiments of this application. Specific arrangements of the driving electrode and the sensing electrode can be found in related technologies, and will not be elaborated here.

[0049] The electrical shielding layer 300 is located on the side of the touch electrode 210 closest to the substrate 100, specifically between the touch electrode 210 and the substrate 100, thereby shielding the electrical signals of the touch electrode 210 from interference to the circuit elements disposed on the substrate 100. The orthographic projection of the touch electrode 210 on the substrate 100 lies within the orthographic projection of the electrical shielding layer 300 on the substrate 100, ensuring that the touch electrode 210 can transmit signals within the shielding range of the electrical shielding layer 300.

[0050] The material of the electrical shielding layer 300 can be a conductive material. In some optional embodiments, the material of the electrical shielding layer 300 can include at least one of titanium (Ti), aluminum (Al) and molybdenum (Mo), so that the electrical shielding layer 300 is conductive to ensure the electrical shielding performance of the electrical shielding layer 300.

[0051] In some optional embodiments, the electrical shielding layer 300 is connected to a voltage source to provide voltage to the electrical shielding layer 300, thereby maintaining the potential of the electrical shielding layer 300 and improving the shielding effect of the electrical shielding layer 300 on the electric field influence of the touch electrode 210. For example, the voltage source can be a voltage source that provides ground voltage, or a voltage source that provides cathode voltage, etc.

[0052] Of course, the electrical shielding layer 300 may not be connected to the voltage source, thereby reducing the complexity of the circuitry in the display panel 10.

[0053] The insulating layer 400 is at least partially located between the electrical shielding layer 300 and the touch electrode 210, and the orthographic projection of the touch electrode 210 on the substrate 100 lies within the orthographic projection of the insulating layer 400 on the substrate 100. This allows the insulating layer 400 to cover the side of the touch electrode 210 facing the electrical shielding layer 300, ensuring that the touch electrode 210 is insulated from the electrical shielding layer 300. The material of the insulating layer 400 may include insulating materials such as silicon dioxide (SiO2) and silicon nitride (Si3N4), thereby isolating the electrical shielding layer 300 and the touch electrode 210 and preventing electrical connection between them.

[0054] In this embodiment, the display panel 10 may include a substrate 100, a touch electrode 210, an electrical shielding layer 300, and an insulating layer 400. The touch electrode 210 is located on one side of the substrate 100; the electrical shielding layer 300 is located on the side of the touch electrode 210 closest to the substrate 100, and the orthographic projection of the touch electrode 210 onto the substrate 100 lies within the orthographic projection of the electrical shielding layer 300 onto the substrate 100. This reduces electric field coupling or electric field induction between the touch electrode 210 and the circuit elements on the substrate 100, preventing crosstalk between the electrical signals of the touch electrode 210 and the electrical signals within the circuit elements on the substrate 100. The insulating layer 400 is at least partially located between the electrical shielding layer 300 and the touch electrode 210, and the orthographic projection of the touch electrode 210 onto the substrate 100 lies within the orthographic projection of the insulating layer 400 onto the substrate 100. This prevents electrical connection between the touch electrode 210 and the electrical shielding layer 300, ensuring the effect of the electrical shielding layer 300 in reducing electric field coupling.

[0055] like Figures 3-7 As shown, in some optional embodiments, the display panel 10 further includes an isolation structure 220 located on the side of the electrical shielding layer 300 away from the substrate 100. The isolation structure 220 can be used to provide a cathode voltage to the light-emitting device 520 of the display panel 10. Both the isolation structure 220 and the touch electrode 210 can be made of conductive materials, such as Ti, Al, Mo, Cu, Ti, ITO, etc., and the isolation structure 220 and the touch electrode 210 can use the same structure and materials.

[0056] Optionally, the touch electrode 210 and the isolation structure 220 can be disposed in the same layer. In some optional embodiments, being disposed in the same layer means being located in the same layer and / or using the same material. For example, the touch electrode 210 and the isolation structure 220 being disposed in the same layer means that the touch electrode 210 and the isolation structure 220 are located in the same layer and / or using the same material.

[0057] The touch electrode 210 and the isolation structure 220 are disposed in the same layer, which facilitates the simultaneous fabrication of the film layer for forming the isolation structure 220 and the touch electrode 210 during the fabrication of the display panel 10. Subsequently, only the shape of the film layer needs to be patterned according to the shapes of the isolation structure 220 and the touch electrode 210 to fabricate the isolation structure 220 and the touch electrode 210, thus improving the fabrication efficiency of the display panel 10. The orthographic projection of the isolation structure 220 on the substrate 100 and the orthographic projection of the shielding layer on the substrate 100 may or may not intersect.

[0058] In some alternative embodiments, the touch electrode 210 and the isolation structure 220 are insulated from each other to prevent interference between the electrical signals in the touch electrode 210 and the electrical signals in the isolation structure 220.

[0059] Optionally, the display panel 10 includes a plurality of isolation structures 220, which are electrically connected to each other to facilitate maintaining the same voltage level among the multiple isolation structures 220.

[0060] Optionally, an isolation space 230 is provided between the touch electrode 210 and the isolation structure 220. For example, as shown... Figure 3 and Figure 4 As shown, an isolation space 230 can be provided around the touch electrode 210 to isolate the touch electrode 210 from the isolation structure 220, so as to avoid forming an electrical connection between the touch electrode 210 and the isolation structure 220.

[0061] Optionally, the display panel 10 further includes an encapsulation layer, at least a portion of which is located on the side of the touch electrode 210 away from the substrate 100. The encapsulation layer can encapsulate the touch electrode 210, the substrate 100, the electrical shielding layer 300, and the insulating layer 400 together.

[0062] Optionally, the encapsulation layer partially fills the isolation space 230. It should be understood that the encapsulation layer can be made of insulating materials such as silicon dioxide (SiO2) and silicon nitride (Si3N4) to ensure that the touch electrode 210 and the isolation structure 220 are insulated from each other.

[0063] like Figure 5As shown, in some optional embodiments, the display panel 10 further includes a display function layer 500, which includes a pixel definition layer 510 and a light-emitting device 520 located on the substrate 100. The pixel definition layer 510 has a pixel opening 511, and at least a portion of the light-emitting device 520 is located in the pixel opening 511, so that at least a portion of the light-emitting device 520 can be accommodated by the pixel opening 511.

[0064] Optionally, the light-emitting device 520 includes a first electrode 521, a light-emitting functional layer 522, and a second electrode 523 arranged sequentially in a direction away from the substrate 100; at least a portion of the first electrode 521 is exposed through a pixel opening 511, and the light-emitting functional layer 522 is located within the pixel opening 511. Optionally, the insulating layer 400 is a pixel definition layer 510.

[0065] The pixel definition layer 510 can be located between the touch electrode 210 and the electrical shielding layer 300, thereby isolating the touch electrode 210 and the electrical shielding layer 300. The light-emitting functional layer 522 can cover the pixel opening 511 to form a light-emitting device 520. The pixel definition layer 510 can also cover the gap between two adjacent first electrodes 521, thereby isolating the two adjacent first electrodes 521. The pixel definition layer 510 is made of an insulating material, such as silicon oxide, silicon nitride, or a multilayer composite material. The orthographic projection of the isolation structure 220 on the substrate 100 and the orthographic projection of the first electrode 521 on the substrate 100 may or may not intersect.

[0066] For example, the first electrode 521 is the anode, and the second electrode 523 is the cathode. The light-emitting functional layer 522 may include a first functional layer, a light-emitting layer, and a second functional layer, which are sequentially stacked on the first electrode 521. The first functional layer may include a hole injection layer, a hole transport layer, an electron blocking layer, etc. The second functional layer may include an electron injection layer, an electron transport layer, a hole blocking layer, etc. Thus, the first electrode 521 and the second electrode 523 supply power to the light-emitting functional layer 522, enabling the light-emitting functional layer 522 to emit light based on the first functional layer, the light-emitting layer, and the second functional layer. In some alternative embodiments, the first electrode 521 may be the cathode, and the second electrode 523 may be the anode.

[0067] Optionally, the orthographic projection of the electrical shielding layer 300 on the substrate 100 does not overlap with the orthographic projection of the pixel opening 511 on the substrate 100, thereby preventing the electrical shielding layer 300 from blocking the pixel opening 511.

[0068] In this embodiment, the display panel 10 further includes a display functional layer 500, which includes a pixel definition layer 510 and light-emitting devices 520 located on the substrate 100. The pixel definition layer 510 has a pixel opening 511, and at least a portion of the light-emitting device 520 is located in the pixel opening 511, which can accommodate at least a portion of the light-emitting device 520. The light-emitting device 520 may include a first electrode 521, a light-emitting functional layer 522, and a second electrode 523 arranged sequentially in a direction away from the substrate 100. At least a portion of the first electrode 521 can be exposed through the pixel opening 511, and the light-emitting functional layer 522 is located within the pixel opening 511. Thus, the pixel definition layer 510 restricts the shape, size, and boundaries between the light-emitting devices 520, ensuring that each light-emitting device 520 can operate independently and precisely. Furthermore, the pixel definition layer 510 can be used as an insulating layer 400, eliminating the need to fabricate a separate insulating layer 400, thereby making full use of the pixel definition layer 510.

[0069] The anode of each light-emitting device 520 can be connected to a pixel driving circuit disposed on the substrate 100. The pixel driving circuit may include a TFT (Thin Film Transistor) and use the TFT as a switch for the light-emitting device 520 to control its operation. In this embodiment, the insulating layer 400 can be disposed between the touch electrode 210 and the pixel driving circuit to reduce electric field coupling or electric field induction between the touch electrode 210 and the pixel driving circuit, and prevent crosstalk between the electrical signals of the touch electrode 210 and the electrical signals in the pixel driving circuit.

[0070] like Figure 6 As shown, in some optional embodiments, the pixel definition layer 510 includes a first pixel definition layer 512 and a second pixel definition layer 513. The second pixel definition layer 513 is located on the side of the touch electrode 210 near the substrate 100, and the first pixel definition layer 512 is located between the second pixel definition layer 513 and the substrate 100. The electrical shielding layer 300 is located between the first pixel definition layer 512 and the second pixel definition layer 513.

[0071] In this embodiment, the pixel definition layer 510 may include a first pixel definition layer 512 and a second pixel definition layer 513. The electrical shielding layer 300 is disposed between the first pixel definition layer 512 and the second pixel definition layer 513. Compared to the side of the entire pixel definition layer 510 closest to the substrate 100, the electrical shielding layer 300 can reduce the distance between the electrical shielding layer 300 and the touch electrode 210, thereby enabling the electrical shielding layer 300 to more effectively reduce the impact of the electrical signal in the touch electrode 210 on the circuit elements on the substrate 100.

[0072] Optionally, the pixel opening 511 includes a first pixel opening 511 formed in the first pixel definition layer 512 and a second pixel opening 511 formed in the second pixel definition layer 513. The orthographic projection of the first pixel opening 511 on the substrate 100 coincides with the orthographic projection of the second pixel opening 511 on the substrate 100, so that the first pixel opening 511 and the second pixel opening 511 can be formed at the same time, thereby improving the manufacturing efficiency of the display panel 10.

[0073] like Figure 5 As shown, in some optional embodiments, the isolation structure 220 includes a first end 221 and a second end 222 opposite to each other in the thickness direction of the substrate 100. The first end 221 is located on the side of the isolation structure 220 close to the substrate 100, and the second end 222 is located on the side of the isolation structure 220 away from the substrate 100. The orthographic projection of the first end 221 on the substrate 100 is located within the orthographic projection of the second end 222 on the substrate 100.

[0074] The isolation structure 220 defines a plurality of isolation openings 223, which can correspond one-to-one with the pixel openings 511. The isolation openings 223 and the corresponding pixel openings 511 are connected to each other, and the orthographic projection of the pixel openings 511 on the substrate 100 can be located within the orthographic projection of the corresponding isolation openings 223 on the substrate 101.

[0075] Multiple isolation openings 223 are defined by the isolation structure 220, allowing at least a portion of the light-emitting device 520 to be disposed within the isolation openings 223. The orthographic projection of the first end 221 of the isolation structure 220 facing the substrate 100 onto the substrate 100 lies within the orthographic projection of the second end 222 of the isolation structure 220 facing away from the substrate 100 onto the substrate 100. This allows the isolation structure 220 to be wider at the top and narrower at the bottom, thus enabling the isolation structure 220 to separate the functional film layers of adjacent light-emitting devices 520. Therefore, in the vapor deposition process of multiple functional film layers, only the entire surface of the display panel 10 needs to be vapor-deposited, without the need to use a mask to vapor-deposit the area where the light-emitting device 520 is located to form the functional film layer. Consequently, the vapor deposition process using the isolation structure 220 does not require consideration of alignment accuracy during vapor deposition, allowing for a smaller gap design between the light-emitting devices 520 to increase pixel density.

[0076] like Figure 5 As shown, in some optional embodiments, the isolation structure 220 includes a first isolation portion 224 and a second isolation portion 225, the first isolation portion 224 forming a first end portion 221 and the second isolation portion 225 forming a second end portion 222.

[0077] Optionally, the portion of the first isolation section 224 located between two adjacent isolation openings 223 may have a trapezoidal profile when its cross-section is cut by a plane intersecting the two adjacent isolation openings 223 and perpendicular to the surface of the substrate 100. The second isolation section 225 is located at the top edge of the first isolation section 224 away from the substrate 100. In this case, the edge of the surface of the first isolation section 224 facing the substrate 100 is the edge of the first end portion 221, which facilitates the deposition of the vapor deposition material of the second electrode 523 on the sidewall of the first isolation section 224, thereby improving the overlap yield between the second electrode 523 and the first isolation section 224. Furthermore, the portion of the second isolation section 225 located between two adjacent isolation openings 223 may have a trapezoidal profile when its cross-section is cut by a plane intersecting the two adjacent isolation openings 223 and perpendicular to the surface of the substrate 100. The edge of the surface of the second isolation section 225 facing the first isolation section 224 is the edge of the second end portion 222.

[0078] It should be understood that the regular and inverted trapezoids mentioned in the embodiments of this application can be strictly regular and inverted trapezoids; or, they can be generally presented shapes, for example, whose top and bottom are parallel or conformal (one side surface rises and falls approximately simultaneously with the other side surface), and the size of the bottom is larger than the size of the top, and the shape of the edges on both sides is approximately axially symmetrical; and the shape of its top, bottom and sides is not limited to being planar.

[0079] Optionally, the touch electrode 210 is disposed in the same layer as at least one of the first isolation portion 224 and the second isolation portion 225, so that the touch electrode 210 can be fabricated together with at least one of the first isolation portion 224 and the second isolation portion 225.

[0080] Optionally, the touch electrode 210 includes a first part and a second part. The first part is located on the side of the touch electrode 210 close to the substrate 100, and the second part is located on the side of the touch electrode 210 away from the substrate 100. The first part of the touch electrode 210 is disposed in the same layer as the first isolation portion 224, and the second part of the touch electrode 210 is disposed in the same layer as the second isolation portion 225, so that the first part and the second part of the touch electrode 210 can be fabricated together with the first isolation portion 224 and the second isolation portion 225, thereby maximizing the fabrication efficiency of the display panel 10.

[0081] like Figure 7 As shown, in some optional embodiments, the isolation structure 220 includes a first isolation portion 224, a second isolation portion 225 and a third isolation portion 226. The first isolation portion 224 forms a first end portion 221, the second isolation portion 225 forms a second end portion 222, and the third isolation portion 226 is located between the first isolation portion 224 and the second isolation portion 225. The orthographic projection of the third isolation portion 226 on the substrate 100 is located within the orthographic projection of the first isolation portion 224 on the substrate 100.

[0082] Along the direction away from the substrate 100, a first isolation portion 224, a third isolation portion 226, and a second isolation portion 225 are sequentially stacked. The side of the first isolation portion 224 closest to the substrate 100 forms a first end portion 221, and the side of the second isolation portion 225 furthest from the substrate 100 forms a second end portion 222. The first isolation portion 224, the second isolation portion 225, and the third isolation portion 226 may include conductive materials, such as silver, copper, and aluminum, to facilitate the isolation structure 220 in providing a cathode voltage to the light-emitting device 520.

[0083] The width of the third isolation portion 226 in the first direction X can be smaller than the width of the first isolation portion 224 in the first direction X, so that the orthographic projection of the third isolation portion 226 on the substrate 100 is located within the orthographic projection of the first isolation portion 224 on the substrate 100, thereby making it easier for the second electrode 523 to be connected to the isolation structure 220 when the light-emitting device 520 is formed by vapor deposition.

[0084] Optionally, the touch electrode 210 is disposed in the same layer as at least one of the first isolation portion 224, the second isolation portion 225 and the third isolation portion 226, so that the touch electrode 210 can be fabricated together with at least one of the first isolation portion 224, the second isolation portion 225 and the third isolation portion 226.

[0085] Optionally, the touch electrode 210 includes a first part, a second part, and a third part. The first part is located on the side of the touch electrode 210 close to the substrate 100, the second part is located on the side of the touch electrode 210 away from the substrate 100, and the third part is located between the first part and the second part. The first part of the touch electrode 210 is disposed in the same layer as the first isolation portion 224, the second part of the touch electrode 210 is disposed in the same layer as the second isolation portion 225, and the third part is disposed in the same layer as the third isolation portion 226. This allows the first part, the second part, and the third part of the touch electrode 210 to be fabricated together with the first isolation portion 224, the second isolation portion 225, and the third isolation portion 226, respectively, thereby maximizing the fabrication efficiency of the display panel 10.

[0086] In some alternative embodiments, the first isolation portion 224 is made of titanium, the second isolation portion 225 is made of aluminum, and the third isolation portion 226 is made of molybdenum, so as to achieve conductivity of the first isolation portion 224, the second isolation portion 225, and the third isolation portion 226 in the isolation structure 220.

[0087] This application embodiment also provides another display panel 10, such as Figures 3-7 As shown, the display panel 10 includes a substrate 100, a touch electrode 210, an electrical shielding layer 300, an insulating layer 400, an isolation structure 220, and a display function layer 500.

[0088] Touch electrode 210 is located on one side of substrate 100. Electrical shielding layer 300 is located on the side of touch electrode 210 near substrate 100, and the orthographic projection of touch electrode 210 on substrate 100 lies within the orthographic projection of electrical shielding layer 300 on substrate 100. Insulating layer 400 is at least partially located between electrical shielding layer 300 and touch electrode 210, and the orthographic projection of touch electrode 210 on substrate 100 lies within the orthographic projection of insulating layer 400 on substrate 100. Isolation structure 220 is located on the side of electrical shielding layer 300 away from substrate 100, and isolation structure 220 defines a plurality of isolation openings 223. Display functional layer 500 is disposed on one side of substrate 100 and includes a plurality of light-emitting devices 520 partially located within corresponding isolation openings 223.

[0089] It should be understood that the display panel provided in this application embodiment is based on the same inventive concept as the display panel in the foregoing embodiment and can achieve the same effect. The structure and materials involved in the display panel in this application embodiment can be found in the description in the foregoing display panel embodiment, and will not be repeated here.

[0090] It should be noted that, depending on the implementation needs, the various components / steps described in the embodiments of this application can be broken down into more components / steps, or two or more components / steps or parts of the operation of components / steps can be combined into new components / steps to achieve the purpose of the embodiments of this application.

[0091] The methods described in the embodiments of this application can be implemented in hardware, firmware, or as software or computer code that can be stored in a recording medium (such as a CD-ROM, RAM, floppy disk, hard disk, or magneto-optical disk), or as computer code downloaded over a network that is originally stored in a remote recording medium or a non-transitory machine-readable medium and will be stored in a local recording medium. Thus, the methods described herein can be stored on a recording medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware (such as an Application Specific Integrated Circuit (ASIC) or a Field Programmable Gate Array (FPGA)). It is understood that the computer, processor, microprocessor controller, or programmable hardware includes storage components (e.g., Random Access Memory (RAM), Read-Only Memory (ROM), Flash Memory, etc.) capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the methods described herein are implemented. Furthermore, when a general-purpose computer accesses the code used to implement the methods shown herein, the execution of the code transforms the general-purpose computer into a dedicated computer for executing the methods shown herein.

[0092] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this application.

[0093] The above embodiments are only used to illustrate the embodiments of this application, and are not intended to limit the embodiments of this application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of this application. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of this application, and the patent protection scope of the embodiments of this application should be defined by the claims.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a touch electrode located on one side of the substrate; an electric shielding layer located on the side of the touch electrode away from the substrate, a projection of the touch electrode on the substrate being located within a projection of the electric shielding layer on the substrate; an insulating layer at least partially located between the electric shielding layer and the touch electrode, and a projection of the touch electrode on the substrate being located within a projection of the insulating layer on the substrate.

2. The display panel of claim 1, wherein, The display panel further comprises an isolation structure located on the side of the electric shielding layer away from the substrate.

3. The display panel of claim 2, wherein, The touch electrode and the isolation structure are located in the same layer.

4. The display panel of claim 2, wherein, The touch electrode and the isolation structure are electrically insulated.

5. The display panel of claim 4, wherein, The display panel comprises a plurality of isolation structures, and the plurality of isolation structures are electrically connected.

6. The display panel of claim 4, wherein, An isolation space is provided between the touch electrode and the isolation structure.

7. The display panel of claim 6, wherein, The display panel further comprises an encapsulation layer, at least a portion of the encapsulation layer being located on the side of the touch electrode away from the substrate.

8. The display panel of claim 7, wherein, The encapsulation layer partially fills the isolation space.

9. The display panel of claim 1, wherein, The display panel further comprises a display functional layer, the display functional layer comprising a pixel definition layer and a light-emitting device located on the substrate, the pixel definition layer being provided with a pixel opening, and at least a portion of the light-emitting device being located in the pixel opening.

10. The display panel of claim 9, wherein, The light-emitting device comprises, in sequence in a direction away from the substrate, a first electrode, a light-emitting functional layer, and a second electrode; at least a portion of the first electrode is exposed through the pixel opening, and the light-emitting functional layer is located in the pixel opening.

11. The display panel of claim 9, wherein, The insulating layer is the pixel definition layer.

12. The display panel of claim 9, wherein, A projection of the electric shielding layer on the substrate does not overlap with a projection of the pixel opening on the substrate.

13. The display panel of any of claims 9-12, wherein, The pixel definition layer comprises a first pixel definition layer and a second pixel definition layer, the second pixel definition layer being located on the side of the touch electrode close to the substrate, and the first pixel definition layer being located between the second pixel definition layer and the substrate; the electric shielding layer is located between the first pixel definition layer and the second pixel definition layer.

14. The display panel of claim 13, wherein, The pixel opening comprises a first pixel opening provided in the first pixel definition layer and a second pixel opening provided in the second pixel definition layer, and a projection of the first pixel opening on the substrate coincides with a projection of the second pixel opening on the substrate.

15. The display panel of any one of claims 9-12, wherein, The display panel further comprises an isolation structure, the isolation structure comprising a first end portion and a second end portion opposite to each other in a thickness direction of the substrate, the first end portion being located on the side of the isolation structure close to the substrate, the second end portion being located on the side of the isolation structure away from the substrate, and a projection of the first end portion on the substrate being located within a projection of the second end portion on the substrate. The isolation structure defines a plurality of isolation openings, and a projection of the pixel opening on the substrate is located within a projection of the isolation opening on the substrate.

16. The display panel of claim 15, wherein, The isolation structure comprises a first isolation portion and a second isolation portion, the first isolation portion constituting the first end portion, and the second isolation portion constituting the second end portion.

17. The display panel of claim 16, wherein, The touch electrode is arranged in the same layer as one of the first isolation portion and the second isolation portion.

18. The display panel of claim 16, wherein, The touch electrode includes a first portion and a second portion, the first portion is located on a side of the touch electrode close to the substrate, and the second portion is located on a side of the touch electrode away from the substrate, the first portion of the touch electrode is arranged in the same layer as the first isolation portion, and the second portion of the touch electrode is arranged in the same layer as the second isolation portion.

19. The display panel of claim 15, wherein, The isolation structure includes a first isolation portion, a second isolation portion, and a third isolation portion, the first isolation portion constitutes the first end portion, the second isolation portion constitutes the second end portion, and the third isolation portion is located between the first isolation portion and the second isolation portion, and a projection of the third isolation portion on the substrate is located within a projection of the first isolation portion on the substrate.

20. The display panel of claim 19, wherein, The touch electrode is arranged in the same layer as one of the first isolation portion, the second isolation portion, and the third isolation portion.

21. The display panel of claim 19, wherein, The touch electrode includes a first portion, a second portion, and a third portion, the first portion is located on a side of the touch electrode close to the substrate, the second portion is located on a side of the touch electrode away from the substrate, and the third portion is located between the first portion and the second portion, the first portion of the touch electrode is arranged in the same layer as the first isolation portion, the second portion of the touch electrode is arranged in the same layer as the second isolation portion, and the third portion is arranged in the same layer as the third isolation portion.

22. The display panel of claim 19, wherein, The material of the first isolation portion includes titanium, the material of the second isolation portion includes aluminum, and the material of the third isolation portion includes molybdenum.

23. The display panel of any one of claims 2-8 and 16-22, wherein, The electric shielding layer is connected with a voltage source.

24. The display panel of claim 23, wherein, The material of the electric shielding layer includes at least one of titanium, aluminum, and molybdenum.

25. The display panel of any one of claims 3, 17, 18, 20, and 21, wherein, The electric shielding layer is connected with a voltage source, and the same layer arrangement refers to being located in the same layer and / or having the same material.

26. A display panel comprising: Comprising: a substrate; a touch electrode located on a side of the substrate; an electric shielding layer located on a side of the touch electrode close to the substrate, a projection of the touch electrode on the substrate is located within a projection of the electric shielding layer on the substrate; an insulating layer at least partially located between the electric shielding layer and the touch electrode, and a projection of the touch electrode on the substrate is located within a projection of the insulating layer on the substrate; an isolation structure located on a side of the electric shielding layer away from the substrate, the isolation structure defines a plurality of isolation openings; a display functional layer arranged on a side of the substrate and including a plurality of light emitting devices located in the corresponding isolation openings.

27. A display device comprising: Comprising: the display panel according to any one of claims 1 to 26.

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