Display panel and display device

Abstract

The invention provides a display panel and a display device, the display panel comprises a substrate, a pixel definition layer, an isolation structure, a plurality of light-emitting units and a touch layer, the pixel definition layer is provided with a plurality of pixel openings, and at least parts of the light-emitting units are located in the pixel openings; the touch layer comprises a plurality of touch electrodes, each touch electrode comprises a first conducting layer, the first conducting layer is provided with a plurality of grid openings, and on the section of the first direction, the distance between the orthographic projection of points on the edges of the grid openings on the substrate and the orthographic projection of corresponding points on the edges of the corresponding pixel openings on the substrate is a first distance; on the cross section in the second direction, the distance between the orthographic projection of the point on the edge of the grid opening on the substrate and the orthographic projection of the corresponding point on the edge of the corresponding pixel opening on the substrate is a second distance, and the first distance is equal to the second distance. According to the technical scheme, the touch performance can be improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is considered the most promising new display technology for the next generation. Compared with liquid crystal display technology, OLED display technology has advantages such as low energy consumption, low cost, self-luminescence, wide viewing angle, and fast response speed.

[0003] Traditionally, pixel patterning is achieved using a fine metal mask (FMM) during the production of OLED display panels. FMM technology is mature and boasts extensive mass production experience. However, it also suffers from limitations such as limited precision and high cost. FMM-free technology eliminates the limitations of traditional OLED processes on display size, resolution, and other performance characteristics, offering the advantages of high performance, full-scale scalability, and agile delivery. Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A describe FMM-free technology for reference.

[0004] However, the touch function of current display panels needs to be improved. Summary of the Invention

[0005] In order to overcome the technical problems mentioned in the above background technology, embodiments of the present application provide a display panel and a display device.

[0006] In a first aspect, an embodiment of the present application provides a display panel, comprising: a substrate; a pixel definition layer located on one side of the substrate, the pixel definition layer being provided with a plurality of pixel openings; an isolation structure located on a side of the pixel definition layer facing away from the substrate, the isolation structure enclosing a plurality of isolation openings, the orthographic projections of the pixel openings on the substrate being located within the orthographic projections of the isolation openings on the substrate; a plurality of light-emitting units, at least portions of the light-emitting units being located within the pixel openings; a touch layer located on a side of the isolation structure facing away from the substrate, the touch layer comprising a plurality of touch electrodes, the touch electrodes comprising a first conductive layer, the first conductive layer being provided with a plurality of grid openings, the grid openings corresponding to the pixel openings, the orthographic projections of the pixel openings on the substrate being located within the orthographic projections of the grid openings on the substrate, points on edges of the pixel openings corresponding to points on edges of the grid openings, and in a cross section in a first direction, a first distance is a distance between the orthographic projections of points on the edges of the corresponding pixel openings on the substrate and the orthographic projections of corresponding points on the edges of the corresponding pixel openings on the substrate, and a second distance is a distance between the orthographic projections of points on the edges of the grid openings on the substrate and the orthographic projections of corresponding points on the edges of the corresponding pixel openings on the substrate, the first distance is equal to the second distance, and the first direction and the second direction intersect.

[0007] In combination with the first aspect, the shape of the orthographic projection of the grid opening on the substrate matches the shape of the orthographic projection of the pixel opening on the substrate.

[0008] In combination with the first aspect, the orthographic projection of at least part of the edge of the pixel opening on the substrate includes a straight edge and / or a right angle, the orthographic projection of at least part of the edge corresponding to the grid opening on the substrate includes a straight edge and / or a right angle, and in any corresponding grid opening and pixel opening, the straight edge of the orthographic projection of the pixel opening on the substrate is set correspondingly to the straight edge of the orthographic projection of the grid opening on the substrate; or, the orthographic projection of part of the edge of the pixel opening on the substrate includes an arc edge and / or an arc angle, the orthographic projection of part of the edge corresponding to the grid opening on the substrate includes an arc edge and / or an arc angle, and in any corresponding grid opening and pixel opening, the arc edge of the orthographic projection of the pixel opening on the substrate is set correspondingly to the arc edge of the orthographic projection of the grid opening on the substrate.

[0009] In combination with the first aspect, in the corresponding grid openings and pixel openings, on any cross-section perpendicular to the extension direction of the pixel opening edge, the distance between the orthographic projection of a point on the edge of the grid opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening on the substrate is equal.

[0010] In combination with the first aspect, the light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit, the pixel opening includes a first pixel opening, a second pixel opening and a third pixel opening, at least a portion of the first light-emitting unit is located within the first pixel opening, at least a portion of the second light-emitting unit is located within the second pixel opening, and at least a portion of the third light-emitting unit is located within the third pixel opening; the distance between the orthographic projection of a point on the edge of at least a portion of the first pixel opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding grid opening on the substrate is equal to the distance between the orthographic projection of a point on the edge of at least a portion of the second pixel opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding grid opening on the substrate; the distance between the orthographic projection of a point on the edge of at least a portion of the second pixel opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding grid opening on the substrate is equal to the distance between the orthographic projection of a point on the edge of the third pixel opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding grid opening on the substrate.

[0011] In combination with the first aspect, points on the edge of the isolation opening correspond to points on the edge of the grid opening, the isolation opening includes a first isolation opening, a second isolation opening, and a third isolation opening, the pixel opening includes a first pixel opening, a second pixel opening, and a third pixel opening, the light-emitting unit includes a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit, at least a portion of the first light-emitting unit is located within the first pixel opening, at least a portion of the second light-emitting unit is located within the second pixel opening, and at least a portion of the third light-emitting unit is located within the third pixel opening, the first isolation opening corresponds to the first pixel opening, the second isolation opening corresponds to the second pixel opening, and the third isolation opening corresponds to the third pixel opening; the distance between the orthographic projection of a point on the edge of at least part of the first isolation opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding grid opening on the substrate is equal to the distance between the orthographic projection of a point on the edge of at least part of the second isolation opening on the substrate and the orthographic projection of the corresponding point on the edge of the corresponding grid opening on the substrate; the distance between the orthographic projection of a point on the edge of at least part of the second isolation opening on the substrate and the orthographic projection of the corresponding point on the edge of the corresponding grid opening on the substrate is equal to the distance between the orthographic projection of a point on the edge of the third isolation opening on the substrate and the orthographic projection of the corresponding point on the edge of the corresponding grid opening on the substrate.

[0012] In combination with the first aspect, the first conductive layer includes a plurality of first grid lines, and a width of the first grid lines along the first direction is not equal to a width of the first grid lines along the second direction.

[0013] In combination with the first aspect, the light-emitting unit includes a first light-emitting unit, a second light-emitting unit and a third light-emitting unit; the number of the third light-emitting units is twice the number of the first light-emitting units or the second light-emitting units, the first light-emitting units and the second light-emitting units are arranged alternately in sequence along the first direction and alternately in sequence along the second direction, the third light-emitting units are arranged along the first direction and arranged along the second direction, a row of first light-emitting units and second light-emitting units is arranged between two adjacent rows of third light-emitting units, and a column of first light-emitting units and second light-emitting units is arranged between two adjacent columns of third light-emitting units; along the first direction, the width of the first grid line between two adjacent third light-emitting units is greater than the width of the first grid line between adjacent first light-emitting units and second light-emitting units; along the second direction, the width of the first grid line between two adjacent third light-emitting units is greater than the width of the first grid line between adjacent first light-emitting units and second light-emitting units.

[0014] In combination with the first aspect, the touch electrode further includes a second conductive layer, which is located on a side of the first conductive layer close to or away from the substrate, and the orthographic projection of the first conductive layer on the substrate is located within the orthographic projection of the second conductive layer on the substrate.

[0015] In combination with the first aspect, the first conductive layer includes multiple first grid lines, the second conductive layer includes multiple second grid lines, the width of the second grid lines along the first direction is greater than the width of the first grid lines along the first direction, and the width of the second grid lines along the second direction is greater than the width of the first grid lines along the second direction.

[0016] In combination with the first aspect, the first conductive layer includes multiple first grid lines, and the second conductive layer includes conductive blocks, and the orthographic projections of the conductive blocks on the substrate cover the orthographic projections of the first grid lines and the pixel openings on the substrate.

[0017] In combination with the first aspect, the material of the first conductive layer includes a metal material, and the material of the second conductive layer includes a transparent conductive oxide material.

[0018] In combination with the first aspect, the first distance and / or the second distance is greater than or equal to 1 um.

[0019] In a second aspect, an embodiment of the present application further provides a display panel, comprising: a substrate; a pixel definition layer located on one side of the substrate, the pixel definition layer being provided with a plurality of pixel openings; an isolation structure located on a side of the pixel definition layer facing away from the substrate, the isolation structure enclosing a plurality of isolation openings, the orthographic projections of the pixel openings on the substrate being located within the orthographic projections of the isolation openings on the substrate; a plurality of light-emitting units, at least part of the light-emitting units being located within the pixel openings; a touch layer located on a side of the isolation structure facing away from the substrate, the touch layer comprising a plurality of touch electrodes, the touch electrodes comprising a first conductive layer, the first conductive layer being provided with a plurality of grid openings, the grid openings corresponding to the pixel openings, the orthographic projections of the pixel openings on the substrate being located within the orthographic projections of the grid openings on the substrate, and the shape of the orthographic projections of the grid openings on the substrate being adapted to the shape of the orthographic projections of the pixel openings on the substrate.

[0020] In combination with the second aspect, the orthographic projection of at least part of the edge of the pixel opening on the substrate includes a straight edge and / or a right angle, the orthographic projection of at least part of the edge corresponding to the grid opening on the substrate includes a straight edge and / or a right angle, and in any corresponding grid opening and pixel opening, the straight edge of the orthographic projection of the pixel opening on the substrate is set correspondingly to the straight edge of the orthographic projection of the grid opening on the substrate; or, the orthographic projection of part of the edge of the pixel opening on the substrate includes an arc edge and / or an arc angle, the orthographic projection of part of the edge corresponding to the grid opening on the substrate includes an arc edge and / or an arc angle, and in any corresponding grid opening and pixel opening, the arc edge of the orthographic projection of the pixel opening on the substrate is set correspondingly to the arc edge of the orthographic projection of the grid opening on the substrate.

[0021] In combination with the second aspect, the points on the edge of the pixel opening correspond to the points on the edge of the grid opening. In the corresponding grid openings and pixel openings, on any cross-section perpendicular to the extension direction of the edge of the pixel opening, the distance between the orthographic projection of the point on the edge of the grid opening on the substrate and the orthographic projection of the corresponding point on the edge of the corresponding pixel opening on the substrate is equal.

[0022] In a third aspect, an embodiment of the present application further provides a display panel, comprising: a substrate; a pixel definition layer located on one side of the substrate, the pixel definition layer being provided with a plurality of pixel openings; an isolation structure located on the side of the pixel definition layer facing away from the substrate, the isolation structure enclosing a plurality of isolation openings, the orthographic projections of the pixel openings on the substrate being located within the orthographic projections of the isolation openings on the substrate; a plurality of light-emitting units, at least part of the light-emitting units being located within the pixel openings; a touch layer located on the side of the isolation structure facing away from the substrate, the touch layer comprising a plurality of touch electrodes, the touch electrodes comprising a first conductive layer and a second conductive layer, the second conductive layer being located on the side of the first conductive layer close to or away from the substrate, the orthographic projection of the first conductive layer on the substrate being located within the orthographic projection of the second conductive layer on the substrate.

[0023] In combination with the third aspect, the first conductive layer includes multiple first grid lines, the second conductive layer includes multiple second grid lines, the width of the second grid lines along the first direction is greater than the width of the first grid lines along the first direction, and the width of the second grid lines along the second direction is greater than the width of the first grid lines along the second direction; or, the first conductive layer includes multiple first grid lines, and the second conductive layer includes a conductive block, and the orthographic projection of the conductive block on the substrate covers the orthographic projection of the first grid lines on the substrate and the orthographic projection of the pixel opening on the substrate.

[0024] In combination with the third aspect, the first conductive layer is provided with a plurality of grid openings, the grid openings correspond to the pixel openings, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the grid opening on the substrate, and the shape of the orthographic projection of the grid opening on the substrate is adapted to the shape of the orthographic projection of the pixel opening on the substrate.

[0025] In a fourth aspect, an embodiment of the present application further provides a display device comprising the above-mentioned display panel.

[0026] Through the above technical solution, on a cross section in the first direction, the distance between the orthographic projection of a point on the edge of the grid opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening on the substrate is a first distance, and on a cross section in the second direction, the distance between the orthographic projection of a point on the edge of the grid opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening on the substrate is a second distance. The first distance is equal to the second distance. By designing the first distance and the second distance to be equal, the line width of the first conductive layer can be increased, the impedance of the touch electrode can be reduced, the touch sensitivity and touch accuracy can be improved, and thus the touch performance can be improved without affecting the light output of the pixel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 2 is a schematic structural diagram of a display panel provided in one embodiment of the present application.

[0029] Figure 2 3 is a schematic diagram of a top view of a display panel provided in one embodiment of the present application.

[0030] Figure 3a This is one of the partial structural diagrams of the touch electrode of the display panel provided by one embodiment of the present application.

[0031] Figure 3bThis is the second partial structural diagram of the touch electrode of the display panel provided in one embodiment of the present application.

[0032] Figure 4 2 is a schematic diagram of the cross-sectional structure of a display panel provided in one embodiment of the present application.

[0033] Figure 5 2 is a schematic structural diagram of a substrate of a display panel provided in one embodiment of the present application.

[0034] Figure 6 This is a pixel circuit diagram of a display panel provided in one embodiment of the present application.

[0035] Figure 7 3 is a schematic diagram of a top view of a display panel provided in another embodiment of the present application.

[0036] Figure 8 This is one of the schematic cross-sectional structural diagrams of a display panel provided in yet another embodiment of the present application.

[0037] Figure 9 This is the second schematic cross-sectional structure diagram of a display panel provided in yet another embodiment of the present application.

[0038] Figure 10 This is the third schematic diagram of the cross-sectional structure of a display panel provided in yet another embodiment of the present application.

[0039] Figure 11 This is the fourth schematic diagram of the cross-sectional structure of a display panel provided in yet another embodiment of the present application.

[0040] Figure 12 1 is a flow chart of a method for manufacturing a display panel provided in one embodiment of the present application.

[0041] Figure 13 2 is a schematic structural diagram of a display device provided in one embodiment of the present application.

[0042] Description of reference numerals: 100, display panel; 10, substrate; 101, transistor; 102, planarization layer; 20, pixel definition layer; 201, pixel opening; 2011, first pixel opening; 2012, second pixel opening; 2013, third pixel opening; 30, light-emitting unit; 31, first light-emitting unit; 32, second light-emitting unit; 33, third light-emitting unit; 310, first electrode; 320, light-emitting functional layer; 330, second electrode; 40, isolation structure; 401, isolation opening; 4011, first isolation opening; 4012, second isolation opening; 4013, third isolation opening; 410, first part; 420, second part; 50, touch layer; 510, touch electrode; 511, first conductive layer; 5111, first grid routing; 5112, grid opening; 512, second conductive layer; 5121, second grid routing; 5122, conductive block; 5101, first touch electrode; 5102, second touch electrode; 610, first packaging layer; 611, packaging unit; 620, second packaging layer; 630, third packaging layer. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0045] It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. It should be noted that different features in the embodiments of the present application can be combined with each other without conflict.

[0046] For ease of understanding, the drawings show mutually orthogonal X-axis, Y-axis, and Z-axis. The direction along the X-axis is referred to as the X-direction, the direction along the Y-axis is referred to as the Y-direction, and the direction along the Z-axis is referred to as the Z-direction. The Z-direction is the normal direction relative to the plane containing the X-direction and the Y-direction. In addition, the situation where various elements are viewed parallel to the plane containing the X-direction and the Y-direction is referred to as a top view. Alternatively, the planes in the X-direction and the Y-direction are parallel to the display surface of the display panel, and the Z-direction is parallel to the thickness direction of the display panel.

[0047] For certain elements, terms such as "upper" or "above" are sometimes used to describe the position of the element in the Z direction, while "lower" or "below" is used to describe the position of the element in the opposite direction. In addition, when terms such as "upper," "above," "lower," "below," and "relatively" are used to define the relative position of two elements, they include not only a state in which the two elements are directly connected, but also a state in which the two elements are separated by a gap or other elements. In addition, terms such as "first," "second," and "third" are used only to distinguish and describe, and should not be understood to indicate or imply relative importance.

[0048] In this application, a full-surface evaporation process is used, eliminating the need for a mask. Different colored light-emitting units are individually evaporated and packaged, eliminating the need to consider alignment accuracy during evaporation. Consequently, the spacing between light-emitting units can be designed to be smaller, thereby improving the pixel aperture ratio and resolution. However, due to the reduced spacing between light-emitting units, the width of the touch electrodes located between them is limited. Furthermore, in existing solutions, the touch lines are not designed with the maximum width, which increases the resistance of the touch electrodes and affects touch performance.

[0049] Based on the above problems, an embodiment of the present application provides a display panel, which includes a substrate, a pixel definition layer, an isolation structure, a plurality of light-emitting units and a touch layer, wherein the pixel definition layer is located on one side of the substrate and is provided with a plurality of pixel openings; the isolation structure is located on the side of the pixel definition layer away from the substrate, the isolation structure encloses a plurality of isolation openings, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate; at least a portion of the light-emitting unit is located within the pixel opening; the touch layer is located on the side of the isolation structure away from the substrate, the touch layer includes a plurality of touch electrodes, the touch electrodes include a first conductive layer, the first conductive layer is provided with a plurality of grid openings, and the grid The grid opening corresponds to the pixel opening, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the grid opening on the substrate, and points on the edge of the pixel opening correspond to points on the edge of the grid opening. In a cross section in a first direction, the distance between the orthographic projection of the point on the edge of the grid opening on the substrate and the orthographic projection of the corresponding point on the edge of the corresponding pixel opening on the substrate is a first distance. In a cross section in a second direction, the distance between the orthographic projection of the point on the edge of the grid opening on the substrate and the orthographic projection of the corresponding point on the edge of the corresponding pixel opening on the substrate is a second distance. The first distance and the second distance are equal, and the first direction and the second direction intersect. In the embodiment of the present application, the first distance and the second distance are designed to be equal. This allows the line width of the first conductive layer to be increased, the impedance of the touch electrode to be reduced, and the touch sensitivity and touch accuracy to be improved without affecting the light emission of the pixel.

[0050] The present application is described below through a number of specific embodiments. It should be understood that the following embodiments are merely illustrative and do not limit the scope of protection of the present application.

[0051] Figure 1 This is a schematic diagram of the structure of a display panel provided in one embodiment of the present application. Display panel 100 may be an organic light-emitting diode (OLED) display panel or a quantum dot light-emitting diode (QLED) display panel. Display panel 100 includes a display area AA having a display function and a non-display area NA.

[0052] The display area AA of the display panel 100 may be in a rectangular shape, or in other shapes such as a square, a circle, or an ellipse.

[0053] The display area AA includes a plurality of pixels PX arranged in the X and Y directions. The pixels PX include a plurality of sub-pixels SPX that display different colors. In some embodiments, the pixels PX include a first sub-pixel SPX1, a second sub-pixel SPX2, and a third sub-pixel SPX3. For example, the first sub-pixel SPX1 is a blue sub-pixel, the second sub-pixel SPX2 is a green sub-pixel, and the third sub-pixel SPX3 is a red sub-pixel. In some embodiments, in addition to the sub-pixels SPX1, SPX2, and SPX3, the pixels PX also include sub-pixels SPX that emit white light or other colors. The arrangement order of the plurality of sub-pixels SPX is merely an example and is not limited thereto.

[0054] Subpixels SPX include pixel circuits and light-emitting units driven by the pixel circuits to emit light of corresponding colors. The first subpixel SPX1 includes a first light-emitting unit, the second subpixel SPX2 includes a second light-emitting unit, and the third subpixel SPX3 includes a third light-emitting unit. Each pixel circuit drives at least one light-emitting unit to emit light. For example, the display area AA includes a normal display area and a light-transmitting display area. The light-transmitting display area is the display area corresponding to the sensor and has light-transmitting properties, while the normal display area is the display area not corresponding to the sensor. In the normal display area, one pixel circuit drives one light-emitting unit to emit light, while in the light-transmitting display area, one pixel circuit drives one or more light-emitting units to emit light.

[0055] Figure 2 3 is a schematic diagram of a top view of a display panel provided in one embodiment of the present application. Figure 3a This is one of the partial structural diagrams of the touch electrode of the display panel provided by one embodiment of the present application. Figure 3b This is the second schematic diagram of the partial structure of the touch electrode of the display panel provided by an embodiment of the present application. Specifically, Figure 3a and Figure 3b yes Figure 2 An enlarged view of the region M in FIG. That is, Figure 3a and Figure 3b Only a partial structure of a touch electrode is shown. Figure 4 2 is a schematic diagram of the cross-sectional structure of a display panel provided in one embodiment of the present application.

[0056] like Figure 4 As shown, the display panel 100 includes a substrate 10 , a pixel definition layer 20 , a plurality of light-emitting units 30 , an isolation structure 40 and a touch layer 50 .

[0057] In the embodiments of this application, Figure 5 As shown, the substrate 10 includes a pixel circuit layer and a planarization layer 102. The pixel circuit layer includes a pixel circuit for driving the light-emitting unit 30 to emit light. Figure 5The transistor 101 in the pixel circuit is shown. A via is provided in the planarization layer 102, and the first electrode 310 is electrically connected to the transistor 101 in the pixel circuit layer through the via. In addition, the pixel circuit layer also includes at least one insulating layer, which can include at least one of an inorganic layer and an organic layer. In addition, the substrate 10 also includes a scan line that provides a scan signal Scan to the pixel circuit and a data line that provides a data signal Data.

[0058] refer to Figure 6 The pixel circuit includes a driving transistor T1 and a data transistor T2, the source of the data transistor T2 is connected to a data line providing a data signal Data, the gate of the data transistor T2 is connected to a scan line providing a scan signal Scan, the drain of the data transistor T2 is connected to the gate of the driving transistor T1, the two ends of the storage capacitor C1 are respectively connected to the gate and source of the driving transistor T1, and the drain of the driving transistor T1 is connected to the light-emitting unit. Figure 6 This is an embodiment of the pixel circuit. The pixel circuit of this application is not limited to Figure 6 The 2T1C pixel circuit shown may also be other pixel circuits, such as 5T1C, 6T1C, 7T1C, 8T1C pixel circuits, etc.

[0059] In the embodiment of the present application, the substrate 10 further includes a substrate, which can be a rigid substrate such as glass, polymethyl methacrylate (PMMA), a silicon substrate, etc., or a flexible substrate such as polyethylene terephthalate (PET), polyimide (PI), polyethylene naphthalate (PEN), etc.

[0060] Continue to refer Figure 4 The pixel definition layer 20 is located on one side of the substrate 10 and is provided with a plurality of pixel openings 201. In the embodiment of the present application, the pixel definition layer 20 comprises an organic material or an inorganic material, which is not limited in this application. Optionally, the pixel definition layer 20 is made of an inorganic material, for example, the pixel definition layer 20 is made of at least one inorganic insulating material selected from silicon nitride (SiNx), silicon oxide (SiOx), and silicon oxynitride (SiON).

[0061] At least a portion of the light-emitting unit 30 is located within the pixel opening 201. The light-emitting unit 30 includes a first electrode 310, a light-emitting functional layer 320, and a second electrode 330, which are stacked in a sequence away from the substrate 10. In the embodiment of the present application, the first electrode 310 comprises an anode, and the second electrode 330 comprises a cathode; alternatively, the first electrode 310 comprises a cathode, and the second electrode 330 comprises an anode. The first electrode 310 is located between the substrate 10 and the pixel definition layer 20, with the pixel opening 201 exposing at least a portion of the first electrode 310. The first electrode 310 may comprise a multilayer structure, for example, comprising a reflective layer and a pair of conductive oxide layers covering the upper and lower surfaces of the reflective layer, respectively. The reflective layer can be formed, for example, from a metal material such as silver, which has excellent light reflectivity. Each conductive oxide layer can be formed from a transparent conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), or indium gallium zinc oxide (IGZO). The second electrode 330 is formed of a metal material such as an alloy of magnesium and silver (MgAg), for example.

[0062] In the embodiment of the present application, the light-emitting functional layer 320 includes multiple film layers stacked together. Optionally, the light-emitting functional layer 320 includes at least one of a hole injection layer, a hole transport layer, an electron blocking layer, a light-emitting layer, a hole blocking layer, an electron transport layer, and an electron injection layer. Optionally, the light-emitting functional layer 320 may include a single light-emitting layer or a stack of multiple light-emitting layers.

[0063] To enable the light-emitting functional layer 320 to emit light, a pixel voltage is applied to the first electrode 310 and a common voltage is applied to the second electrode 330, respectively. This creates a potential difference between the first electrode 310 and the second electrode 330, causing the light-emitting functional layer 320 disposed therebetween to emit light. For example, if a potential difference is formed between the first electrode 310 and the second electrode 330 of a blue light-emitting unit (i.e., the first light-emitting unit 31), the light-emitting functional layer 320 emits blue light; if a potential difference is formed between the first electrode 310 and the second electrode 330 of a green light-emitting unit (i.e., the third light-emitting unit 33), the light-emitting functional layer 320 emits green light; and if a potential difference is formed between the first electrode 310 and the second electrode 330 of a red light-emitting unit (i.e., the second light-emitting unit 32), the light-emitting functional layer 320 emits red light. The pixel voltage of the first electrode 310 is provided by the pixel circuit, and the common voltage of the second electrode 330 is provided by the isolation structure 40. Specifically, the second electrode 330 is electrically connected to the isolation structure 40. By providing the common voltage to the isolation structure 40, the common voltage is supplied to the second electrode 330. In other words, the isolation structure 40 has the function of supplying the common voltage to the second electrode 330.

[0064] The isolation structure 40 is located on the side of the pixel definition layer 20 facing away from the substrate 10. The isolation structure 40 encloses a plurality of isolation openings 401. The orthographic projections of the pixel openings 201 on the substrate 10 are located within the orthographic projections of the isolation openings 401 on the substrate 10, i.e., the pixel openings 201 are connected to the isolation openings 401. Optionally, the orthographic projection of the isolation structure 40 on the substrate 10 includes a grid-like structure.

[0065] Alternatively, as Figure 4 As shown, the isolation structure 40 includes a first portion 410 (also referred to as an isolation portion) and a second portion 420 (also referred to as a blocking portion), stacked sequentially in a direction away from the substrate 10. The orthographic projection of the first portion 410 on the substrate 10 is located within the orthographic projection of the second portion 420 on the substrate 10. That is, the two ends of the second portion 420 protrude from the sides of the first portion 410. This isolation structure 40 has a shape known as an overhang. Optionally, the first portion 410 and the second portion 420 are made of different materials, and the etching rate of the first portion 410 is greater than the etching rate of the second portion 420, thereby obtaining an overhang-shaped structure. Optionally, the material of the first portion 410 includes a conductive material, such as aluminum (Al) or an aluminum alloy, wherein the aluminum alloy may include at least one of aluminum-neodymium alloy (AlNd), aluminum-yttrium alloy (AlY), or aluminum-silicon alloy (AlSi). The second portion 420 can have a single-layer structure or a multi-layer structure. If the second portion 420 has a single-layer structure, the material of the second portion 420 includes at least one of titanium, titanium nitride, molybdenum, tungsten, a molybdenum-tungsten alloy, or a molybdenum-niobium alloy. If the second portion 420 has a multi-layer structure, one layer of the second portion 420 can include at least one of titanium, titanium nitride, molybdenum, tungsten, a molybdenum-tungsten alloy, or a molybdenum-niobium alloy, and another layer of the second portion 420 can include a conductive oxide or an inorganic insulating material, such as indium tin oxide (ITO) or indium zinc oxide (IZO). For example, the material of the first portion 410 includes aluminum, and the material of the second portion 420 includes titanium. Optionally, the second electrode 330 is electrically connected to the isolation structure 40. For example, the second electrode 330 can be electrically connected to the first portion 410.

[0066] It should be noted that because the side surfaces of the first portion 410 (e.g., aluminum) are easily oxidized during the manufacturing process, a third portion (e.g., molybdenum) is required. The second electrode 330 is first overlapped with the third portion, and then the overlap between the second electrode 330 and the first portion 410 is achieved through the third portion. Specifically, the isolation structure 40 may further include a third portion (also referred to as a base portion) located on the side of the first portion 410 closer to the substrate 10. The orthographic projection of the first portion 410 on the substrate 10 is located within the orthographic projection of the third portion on the substrate 10. The end of the third portion facing the isolation opening protrudes from the first portion 410. The material of the third portion includes at least one of molybdenum (Mo), titanium (Ti), titanium nitride (TiN), molybdenum-tungsten alloy (MoW), or molybdenum-niobium alloy (MoNb).

[0067] The touch layer 50 is located on the side of the isolation structure 40 facing away from the substrate 10. Figure 2 As shown, the touch layer 50 includes a plurality of touch electrodes 510, and the plurality of touch electrodes 510 include a plurality of first touch electrodes 5101 and a plurality of second touch electrodes 5102. The plurality of first touch electrodes 5101 are arranged along a first direction (ie, Figure 2 The plurality of second touch electrodes 5102 are arranged along the second direction (ie Figure 2 The first direction and the second direction intersect. Optionally, the intersection angle between the first direction and the second direction can be 30°, 45°, 60°, 90°, 120°, etc. Preferably, the first direction and the second direction are perpendicular.

[0068] The touch electrode 510 includes a first conductive layer 511, and the first touch electrode 5101 and the second touch electrode 5102 are located in the first conductive layer 511. Figure 3a and 3b As shown, the first conductive layer 511 is provided with a plurality of grid openings 5112, the grid openings 5112 corresponding to the pixel openings 201, and the orthographic projection of the pixel opening 201 on the substrate 10 is located within the orthographic projection of the grid openings 5112 on the substrate 10. Any first touch electrode 5101 or second touch electrode 5102 in the first conductive layer 511 is as shown. Figure 3a and 3b The rectangular block shown in FIG is not limited to a rectangular block, and may also be a diamond, square, etc. The points on the edge of the pixel opening 201 correspond to the points on the edge of the grid opening 5112. In the first direction (i.e. Figure 3a and Figure 3b In the cross section (in the x direction in the grid), the distance between the orthographic projection of a point on the edge of the grid opening 5112 on the substrate 10 and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening 201 on the substrate 10 is a first distance Lx. Figure 3a and Figure 3bOn a cross section (in the y direction), the distance between the orthographic projection of a point on the edge of the grid opening 5112 on the substrate 10 and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening 201 on the substrate 10 is a second distance Ly, and the first distance Lx is equal to the second distance Ly.

[0069] In the embodiment of the present application, the first distance and the second distance are designed to be equal. Under the premise of not affecting the normal light emission of the light-emitting unit 30, the line width of the first conductive layer 511 can be increased, the impedance of the touch electrode 510 can be reduced, and the touch sensitivity and touch accuracy can be improved, that is, the touch performance can be improved. At the same time, the shading conditions on the sides of the light-emitting unit 30 are ensured to be consistent to avoid color deviation of the visual field.

[0070] Optionally, the material of the first conductive layer 511 includes a metal material, such as at least one of gold, silver, copper, and aluminum. Because metal materials are opaque, the first conductive layer 511 cannot block the pixel opening 201. Furthermore, the edge of the grid opening 5112 needs to be at a certain distance (i.e., a first distance or a second distance) from the edge of the pixel opening 201 to prevent the first conductive layer 511 (i.e., the touch electrode 510) from affecting the normal light output of the display panel 100. Optionally, the first distance and / or the second distance are greater than or equal to 1 μm, such as 1 μm, 1.3 μm, 1.5 μm, 2 μm, 2.5 μm, 3 μm, etc. It should be noted that the first distance and the second distance can be selected based on actual scenarios and are not limited in this embodiment of the present application.

[0071] In the embodiment of the present application, the shape of the orthographic projection of the grid opening 5112 on the substrate 10 matches the shape of the orthographic projection of the pixel opening 201 on the substrate 10. This maximizes the line width of the first conductive layer 511, reduces the impedance of the touch electrode 510, and improves touch sensitivity and accuracy without affecting the normal light emission of the light-emitting unit 30.

[0072] Generally, the shape of the pixel opening 201 can be designed according to actual needs. For example, the orthographic projection of the edge of the pixel opening 201 on the substrate 10 can be a circle, a rectangle, a diamond, an irregular shape, etc. Therefore, the orthographic projection of the edge of the grid opening 5112 on the substrate 10 can be a circle, a rectangle, a diamond, an irregular shape, etc.

[0073] Optionally, the orthographic projection of at least part of the edge of the pixel opening 201 on the substrate 10 includes a straight edge and / or a right angle, then the orthographic projection of at least part of the edge corresponding to the grid opening 5112 on the substrate 10 includes a straight edge and / or a right angle. In any corresponding grid opening 5112 and pixel opening 201, the straight edge of the orthographic projection of the pixel opening 201 on the substrate 10 is corresponding to the straight edge of the orthographic projection of the grid opening 5112 on the substrate 10. The orthographic projection of at least part of the edge of the pixel opening 201 on the substrate 10 includes an arc edge and / or an arc angle, then the orthographic projection of part of the edge corresponding to the grid opening 5112 on the substrate 10 includes an arc edge and / or an arc angle. In any corresponding grid opening 5112 and pixel opening 201, the arc edge of the orthographic projection of the pixel opening 201 on the substrate 10 is corresponding to the arc edge of the orthographic projection of the grid opening 5112 on the substrate 10. For example, Figure 3a As shown, the orthographic projection of the edge of the pixel opening 201 on the substrate 10 is a rectangle surrounded by four straight sides, and the orthographic projection of the edge of the grid opening 5112 on the substrate 10 is also a rectangle surrounded by four straight sides. Figure 3b As shown, the orthographic projection of the edge of the pixel opening 201 on the substrate 10 is a shape surrounded by two straight edges and two arc edges, and the orthographic projection of the edge of the grid opening 5112 on the substrate 10 is also a shape surrounded by two straight edges and two arc edges. It should be noted that, Figure 3a and Figure 3b Only two shapes of the pixel openings 201 are shown. The pixel openings 201 may also be in other shapes, which is not limited in the embodiment of the present application.

[0074] In some embodiments, in the correspondingly arranged grid openings 5112 and pixel openings 201, on any cross section perpendicular to the extension direction of the edge of the pixel opening 201, the distance between the orthographic projection of a point on the edge of the grid opening 5112 on the substrate 10 and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening 201 on the substrate 10 is equal. For example, the shape of the orthographic projection of the pixel opening 201 on the substrate 10 is a first circle, and the shape of the orthographic projection of the grid opening 5112 on the substrate 10 is a second circle. On any cross section perpendicular to the extension direction of the edge of the pixel opening 201, the distance between the orthographic projection of a point on the edge of the grid opening 5112 on the substrate 10 and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening 201 on the substrate 10 is the difference between the radii of the second circle and the first circle. Any cross section perpendicular to the extension direction of the edge of the pixel opening 201 includes the extension direction perpendicular to the straight side of the pixel opening 201 and the connection direction perpendicular to the arc side of the pixel opening 201 and the corresponding circle center. It should be noted that, as Figure 3aAs shown, the orthographic projection of the pixel opening 201 on the substrate 10 is a rectangle, and the orthographic projection of the grid opening 5112 on the substrate 10 is also a rectangle. At the four intersection points, the distance between the orthographic projection of the point on the edge of the grid opening 5112 on the substrate 10 and the orthographic projection of the corresponding point on the edge of the corresponding pixel opening 201 on the substrate 10 is a third distance. At other positions, the distance between the orthographic projection of the point on the edge of the grid opening 5112 on the substrate 10 and the orthographic projection of the corresponding point on the edge of the corresponding pixel opening 201 on the substrate 10 is a fourth distance. The third distance is greater than the fourth distance.

[0075] Optionally, the light-emitting unit 30 includes a first light-emitting unit 31, a second light-emitting unit 32, and a third light-emitting unit 33. Optionally, the pixel opening 201 includes a first pixel opening 2011, a second pixel opening 2012, and a third pixel opening 2013, with different pixel openings 201 being used to accommodate light-emitting units 30 of different colors. Specifically, at least a portion of the first light-emitting unit 31 is located within the first pixel opening 2011, at least a portion of the second light-emitting unit 32 is located within the second pixel opening 2012, and at least a portion of the third light-emitting unit 33 is located within the third pixel opening 2013. Optionally, the first light-emitting unit 31 includes a blue light-emitting unit, the second light-emitting unit 32 includes a red light-emitting unit, and the third light-emitting unit 33 includes a green light-emitting unit.

[0076] like Figure 4 As shown, the distance L1 between the orthographic projections of at least some points on the edge of the first pixel opening 2011 and the orthographic projections of the corresponding points on the edge of the grid opening 5112 on the substrate 10 is equal to the distance L2 between the orthographic projections of at least some points on the edge of the second pixel opening 2012 and the orthographic projections of the corresponding points on the edge of the grid opening 5112 on the substrate 10. The distance L2 between at least some points on the orthographic projections of at least some points on the edge of the second pixel opening 2012 and the orthographic projections of the corresponding points on the edge of the grid opening 5112 on the substrate 10 is equal to the distance L3 between the orthographic projections of at least some points on the edge of the third pixel opening 2013 and the orthographic projections of the corresponding points on the edge of the grid opening 5112 on the substrate 10. In this way, the line width of the first conductive layer 511 can be maximized, the impedance of the touch electrode 510 can be reduced, and touch sensitivity and accuracy can be improved without affecting the normal light emission of the light-emitting unit 30.

[0077] Optionally, points on the edge of the isolation opening 401 correspond to points on the edge of the grid opening 5112, and the isolation opening 401 includes a first isolation opening 4011, a second isolation opening 4012 and a third isolation opening 4013, the first isolation opening 4011 corresponds to the first pixel opening 2011, the second isolation opening 4012 corresponds to the second pixel opening 2012, and the third isolation opening 4013 corresponds to the third pixel opening 2013.

[0078] like Figure 4 As shown, the distance D1 between the orthographic projections of at least some points on the edge of the first isolation opening 4011 and the orthographic projections of corresponding points on the edge of the corresponding grid opening 5112 on the substrate 10 is equal to the distance D2 between the orthographic projections of at least some points on the edge of the second isolation opening 4012 and the orthographic projections of corresponding points on the edge of the corresponding grid opening 5112 on the substrate 10. The distance D2 between at least some points on the orthographic projections of at least some points on the edge of the second isolation opening 4012 and the orthographic projections of corresponding points on the edge of the corresponding grid opening 5112 on the substrate 10 is equal to the distance D3 between the orthographic projections of at least some points on the edge of the third isolation opening 4013 and the orthographic projections of corresponding points on the edge of the corresponding grid opening 5112 on the substrate 10. In this way, the line width of the first conductive layer 511 can be maximized, the impedance of the touch electrode 510 can be reduced, and touch sensitivity and accuracy can be improved without affecting the normal light emission of the light-emitting unit 30.

[0079] Since the spacing between adjacent pixel openings 201 in different directions is different, the line width of the first conductive layer 511 in different directions is different, so as to maximize the line width of the first conductive layer 511. Figure 3a and Figure 3b As shown, the first conductive layer 511 includes a plurality of first grid lines 5111, and the first grid lines 5111 are arranged along a first direction (ie Figure 3a or Figure 3b The width Wx of the first grid line 5111 along the second direction (i.e. Figure 3a or Figure 3b The widths Wy of the first mesh traces 5111 (in the y direction) are not equal. That is, the width of the first mesh traces 5111 is determined by the spacing between the pixel openings 201. Because the spacing between the pixel openings 201 in different directions is different, the widths of the first mesh traces 5111 in different directions are different. This maximizes the line width of the first conductive layer 511, reduces the impedance of the touch electrodes 510, and improves touch sensitivity and accuracy, without affecting the normal light emission of the light-emitting units 30.

[0080] Figure 7 4 is a top view of a display panel provided in another embodiment of the present application. Figure 71 shows a specific embodiment of pixel arrangement, and the pixel arrangement of the display panel 100 is also called diamond arrangement. It is understood that only the pixel arrangement of the display panel 100 is shown here. Figure 7 The embodiment shown is used for illustration, and the technical solution of the present application can also be applied to other pixel arrangements, which will not be described in detail in this application.

[0081] like Figure 7 As shown, the light emitting unit 30 includes a first light emitting unit 31, a second light emitting unit 32 and a third light emitting unit 33. The number of the third light emitting unit 33 is twice the number of the first light emitting unit 31 or the second light emitting unit 32. The first light emitting unit 31 includes a blue light emitting unit, the second light emitting unit 32 includes a red light emitting unit, and the third light emitting unit 33 includes a green light emitting unit. The first light emitting unit 31 and the second light emitting unit 33 are arranged along a first direction (i.e. Figure 7 x direction in the middle) and are arranged alternately along the second direction (i.e. Figure 7 The third light emitting units 33 are arranged alternately along the first direction (i.e. Figure 7 x direction in the middle) and along the second direction (i.e. Figure 7 A row of first light emitting units 31 and a second light emitting unit 32 is provided between two adjacent rows of third light emitting units 33, and a column of first light emitting units 31 and a second light emitting unit 32 is provided between two adjacent columns of third light emitting units 33.

[0082] like Figure 7 As shown, the size of the third light-emitting unit 33 is smaller than that of the second light-emitting unit 32, and the size of the second light-emitting unit 32 is smaller than that of the first light-emitting unit 31. Thus, the distance between two adjacent third light-emitting units 33 is greater than the distance between the first light-emitting unit 31 and the second light-emitting unit 32. Optionally, along the first direction, the width a of the first grid line 5111 between two adjacent third light-emitting units 33 is greater than the width b of the first grid line 5111 between two adjacent first light-emitting units 31 and second light-emitting units 32. Along the second direction, the width d of the first grid line 5111 between two adjacent third light-emitting units 33 is greater than the width c of the first grid line 5111 between two adjacent first light-emitting units 31 and second light-emitting units 32. This means that with this pixel arrangement, the width of the first grid line 5111 can also be maximized, reducing the impedance of the touch electrode 510 and improving touch sensitivity and accuracy.

[0083] Continue to refer Figure 4The display panel 100 further includes a first encapsulation layer 610 located between the light-emitting unit 30 and the touch layer 50. The first encapsulation layer 610 includes a plurality of encapsulation units 611. The encapsulation units 611 are located on a side of the second electrode 330 facing away from the substrate 10 and extend through the sidewall of the isolation structure 40 to a side of the isolation structure 40 facing away from the substrate 10. The encapsulation units 611 correspond to the light-emitting unit 30, and the orthographic projection of the light-emitting unit 30 on the substrate 10 is located within the orthographic projection of the encapsulation units 611 on the substrate 10.

[0084] The display panel 100 also includes a second encapsulation layer 620 and a third encapsulation layer 630, which are stacked sequentially in a direction away from the substrate 10. Optionally, the first encapsulation layer 610 and the third encapsulation layer 630 include inorganic encapsulation layers, and the second encapsulation layer 620 includes an organic encapsulation layer. The material of the first encapsulation layer 610 and the third encapsulation layer 630 includes at least one of silicon nitride (SiN), silicon oxide (SiO), and silicon oxynitride (SiON). The material of the second encapsulation layer 620 includes a resin material such as epoxy resin and acrylic resin. The second encapsulation layer 620 and the third encapsulation layer 630 are continuously arranged at least throughout the display area AA, and a portion of them are also arranged in the frame area NA.

[0085] Optionally, the display panel 100 may further include at least one film layer such as a polarizer, a color filter layer, a cover plate, etc. The film layer may also be bonded to the display panel 100 via an adhesive layer such as an OCA (Optical Clear Adhesive).

[0086] Optionally, in order to further reduce the resistance of the touch electrode 510, the film structure of the touch electrode 510 can be changed. For example, the touch electrode 510 is designed to be a stacked structure of a metal layer and a transparent conductive metal oxide. Figures 8 to 11 shown.

[0087] Figures 8 to 11 The display panel 100 is shown with Figure 4 The difference between the display panel 100 shown is that the touch electrode 510 further includes a second conductive layer 512, the second conductive layer 512 is located on the side of the first conductive layer 511 close to or away from the substrate 10, and the orthographic projection of the first conductive layer 511 on the substrate 10 is located within the orthographic projection of the second conductive layer 512 on the substrate 10. Figure 8 and Figure 10 In the embodiment, the second conductive layer 512 is located on the side of the first conductive layer 511 away from the substrate 10; Figure 9 and Figure 11In the embodiment, the second conductive layer 512 is located on the side of the first conductive layer 511 closer to the substrate 10. Optionally, the material of the first conductive layer 511 includes a metal material, such as at least one of gold, silver, copper, and aluminum. The material of the second conductive layer 512 includes a transparent conductive metal oxide, such as indium tin oxide (ITO), indium zinc oxide (IZO), or indium gallium zinc oxide (IGZO). In the embodiment of the present application, the touch electrode 510 is designed as a two-layer touch electrode, which can further reduce the resistance of the touch electrode 510, thereby improving touch sensitivity and touch accuracy.

[0088] In some embodiments, the orthographic projection of the second conductive layer 512 on the substrate 10 completely overlaps with the orthographic projection of the first conductive layer 511 on the substrate 10. Because the second conductive layer 512 is made of a transparent material, the area of ​​the second conductive layer 512 can be larger than that of the first conductive layer 511 to further reduce the resistance of the touch electrodes.

[0089] Optionally, the orthographic edge of the second conductive layer 512 on the substrate 10 is arranged to overlap with the orthographic edge of the isolation structure 40 on the substrate, or the orthographic edge of the second conductive layer 512 on the substrate 10 protrudes from the orthographic edge of the isolation structure 40 on the substrate, but does not exceed the orthographic edge of the pixel definition layer 20 on the substrate 10.

[0090] like Figure 8 and Figure 9 As shown, the first conductive layer 511 includes a plurality of first grid lines 5111, and the second conductive layer 512 includes a plurality of second grid lines 5121. The width of the second grid lines 5121 along the first direction is greater than the width of the first grid lines 5111 along the first direction, and the width of the second grid lines 5121 along the second direction is greater than the width of the first grid lines 5111 along the second direction. In this embodiment, the second conductive layer 512 is still in a grid shape, and the orthographic projection of the second grid lines 5121 on the substrate 10 is located outside the orthographic projection of the pixel opening 201 on the substrate 10, so as not to block the light emitted by the light-emitting unit 30 at a normal viewing angle.

[0091] like Figure 10 and Figure 11 As shown, the first conductive layer 511 includes a plurality of first grid traces 5111, and the second conductive layer 512 includes conductive blocks 5122. The orthographic projections of the conductive blocks 5122 on the substrate 10 overlap the orthographic projections of the first grid traces 5111 on the substrate 10 and the orthographic projections of the pixel openings 201 on the substrate 10. Because the second conductive layer 512 is made of a transparent material, light can pass through the second conductive layer 512. Therefore, the second conductive layer 512 can be designed as conductive blocks 5122 to further reduce the resistance of the touch electrodes 510, thereby improving touch sensitivity and touch accuracy.

[0092] The embodiment of the present application further provides a display panel 100, such as Figures 1 to 11 As shown, the display panel 100 includes a substrate 10, a pixel definition layer 20, an isolation structure 40, a plurality of light-emitting units 30 and a touch layer 50; wherein the pixel definition layer 20 is located on one side of the substrate 10, and the pixel definition layer 20 is provided with a plurality of pixel openings 201; the isolation structure 40 is located on the side of the pixel definition layer 20 away from the substrate 10, and the isolation structure 40 encloses a plurality of isolation openings 401, and the orthographic projection of the pixel opening 201 on the substrate 10 is located within the orthographic projection of the isolation opening 401 on the substrate 10; at least part of the light-emitting unit 30 is located in the pixel opening 201. 01; the touch layer 50 is located on the side of the isolation structure 40 facing away from the substrate 10. The touch layer 50 includes multiple touch electrodes 510. The touch electrodes 510 include a first conductive layer 511. The first conductive layer 511 is provided with multiple grid openings 5112. The grid openings 5112 correspond to the pixel openings 201. The orthographic projection of the pixel opening 201 on the substrate 10 is located within the orthographic projection of the grid openings 5112 on the substrate 10. The shape of the orthographic projection of the grid openings 5112 on the substrate 10 matches the shape of the orthographic projection of the pixel opening 201 on the substrate 10. In the embodiment of the present application, by matching the shape of the orthographic projection of the grid openings 5112 on the substrate 10 to the shape of the orthographic projection of the pixel opening 201 on the substrate 10, the line width of the first conductive layer 511 can be maximized, the resistance of the touch electrodes 510 can be reduced, and the touch sensitivity and touch accuracy can be improved.

[0093] The embodiments of the present application may be combined with some or all of the features of the above embodiments, which will not be described in detail here.

[0094] The embodiment of the present application further provides a display panel 100, such as Figures 1 to 11 As shown, the display panel 100 includes a substrate 10, a pixel definition layer 20, an isolation structure 40, a plurality of light-emitting units 30 and a touch layer 50, wherein the pixel definition layer 20 is located on one side of the substrate 10 and is provided with a plurality of pixel openings 201; the isolation structure 40 is located on the side of the pixel definition layer 20 away from the substrate 10, the isolation structure 40 encloses a plurality of isolation openings 401, and the orthographic projection of the pixel opening 201 on the substrate 10 is located within the orthographic projection of the isolation opening 401 on the substrate 10; at least a portion of the light-emitting unit 30 is located within the pixel opening 201; the touch layer 50 is located on the side of the isolation structure 40 away from the substrate 10, the touch layer 50 includes a plurality of touch electrodes 510, the touch electrode 510 includes a first conductive layer 511 and a second conductive layer 512, the second conductive layer 512 is located on the side of the first conductive layer 511 close to or away from the substrate 10, and the orthographic projection of the first conductive layer 511 on the substrate 10 is located within the orthographic projection of the second conductive layer 512 on the substrate 10. In the embodiment of the present application, by designing the touch electrode 510 as a two-layer structure, the resistance of the touch electrode 510 can be reduced, and the touch sensitivity and touch accuracy can be improved.

[0095] The embodiments of the present application may be combined with some or all of the features of the above embodiments, which will not be described in detail here.

[0096] The present application also provides a method for preparing a display panel, which is used to prepare the above-mentioned display panel. Figure 12 As shown, the preparation method includes the following steps.

[0097] Step S1201: preparing a first electrode on a substrate.

[0098] Optionally, a conductive material layer is prepared on the substrate, and the conductive material layer is patterned to obtain a plurality of first electrodes arranged at intervals.

[0099] Step S1202 : preparing a pixel definition layer and an isolation structure on a side of the first electrode facing away from the substrate.

[0100] Optionally, the pixel definition layer encloses a plurality of pixel openings, the pixel openings expose at least a portion of the first electrode, the isolation structure encloses a plurality of isolation openings, and the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate, that is, the pixel opening and the isolation opening are connected.

[0101] In an embodiment of the present application, the preparation method includes: preparing a pixel definition material layer on the side of the first electrode facing away from the substrate; preparing an isolation material layer on the side of the pixel definition material layer facing away from the substrate; patterning the isolation material layer to obtain an isolation structure; and patterning the exposed pixel definition material layer to obtain a pixel definition layer.

[0102] Step S1203 , preparing a light-emitting functional layer and a second electrode in the isolation opening.

[0103] Optionally, the preparation method includes sequentially preparing a light-emitting functional layer, a second electrode, and an encapsulation unit within the isolation opening. In an embodiment of the present application, light-emitting units of different colors are prepared in steps. Optionally, a first preparation material layer corresponding to a first color light-emitting unit is prepared, the first preparation material layer of the isolation opening corresponding to the first color light-emitting unit is retained, and a light-emitting functional layer, a second electrode, and an encapsulation unit corresponding to the first color light-emitting unit are formed, and the first preparation material layer of the isolation opening corresponding to the second color light-emitting unit and the third color light-emitting unit is etched; then, a second preparation material layer corresponding to the second color light-emitting unit is prepared, the second preparation material layer of the isolation opening corresponding to the second color light-emitting unit is retained, and a light-emitting functional layer, a second electrode, and an encapsulation unit corresponding to the second color light-emitting unit are formed, and the second preparation material layer of the isolation opening corresponding to the first color light-emitting unit and the third color light-emitting unit is etched; then, a third preparation material layer corresponding to the third color light-emitting unit is prepared, the third preparation material layer of the isolation opening corresponding to the third color light-emitting unit is retained, and a light-emitting functional layer, a second electrode, and an encapsulation unit corresponding to the third color light-emitting unit are formed, and the third preparation material layer of the isolation opening corresponding to the first color light-emitting unit and the second color light-emitting unit is etched. For example, the light-emitting colors of the first color light-emitting unit, the second color light-emitting unit, and the third color light-emitting unit are different.

[0104] Optionally, when preparing a red light-emitting unit (i.e., the second light-emitting unit), a red light-emitting functional layer, a second electrode, and an encapsulation unit are sequentially prepared in the isolation opening corresponding to the red light-emitting unit; when preparing a green light-emitting unit (i.e., the third light-emitting unit), a green light-emitting functional layer, a second electrode, and an encapsulation unit are sequentially prepared in the isolation opening corresponding to the green light-emitting unit; when preparing a blue light-emitting unit (i.e., the first light-emitting unit), a blue light-emitting functional layer, a second electrode, and an encapsulation unit are sequentially prepared in the isolation opening corresponding to the blue light-emitting unit.

[0105] Optionally, the preparation method further comprises: sequentially preparing a second encapsulation layer and a third encapsulation layer on a side of the first encapsulation layer facing away from the substrate.

[0106] Step S1204 , forming a touch layer on the side of the third encapsulation layer facing away from the substrate.

[0107] Optionally, a first conductive material layer is prepared on the side of the third encapsulation layer facing away from the substrate, and the first conductive material layer is patterned to obtain a first conductive layer. The first conductive layer is provided with a plurality of grid openings, the grid openings corresponding to the pixel openings, the orthographic projections of the pixel openings on the substrate being located within the orthographic projections of the grid openings on the substrate, points on the edges of the pixel openings corresponding to points on the edges of the grid openings, and in a cross section in a first direction, the distance between the orthographic projections of the points on the edges of the grid openings on the substrate and the orthographic projections of the corresponding points on the edges of the corresponding pixel openings on the substrate is a first distance, and in a cross section in a second direction, the distance between the orthographic projections of the points on the edges of the grid openings on the substrate and the orthographic projections of the corresponding points on the edges of the corresponding pixel openings on the substrate is a second distance, the first distance and the second distance are equal, and the first direction and the second direction intersect. In this way, the line width of the first conductive layer can be increased, the resistance of the touch electrodes can be reduced, and the touch sensitivity and touch accuracy can be improved.

[0108] An embodiment of the present application provides a display device, which includes the display panel in the above embodiment.

[0109] Figure 13 Schematic diagram of the structure of a display device provided by an embodiment of the present application. Figure 13 As shown, the display device 1300 is a product with an image display function. For example, the display device 1300 can be used to display static images, such as pictures or photos. The display device 1300 can also be used to display dynamic images, such as videos.

[0110] The display device 1300 can be a laptop computer, a mobile phone, a handheld or portable computer, a camera, a video camera, a vehicle-mounted smart central control screen, a calculator, a smart watch, a GPS navigator, an electronic photo, an electronic billboard or sign, a projector, etc.

[0111] The display device 1300 includes a display panel provided by any of the above embodiments, which may be an organic light emitting diode display panel or a quantum dot electroluminescent display panel.

[0112] In addition, the display device 1300 may also have functions such as taking photos, recording videos, fingerprint recognition, and face recognition. Accordingly, the display device 1300 also includes at least one functional module for implementing the above functions, such as an under-screen camera, an under-screen fingerprint recognition sensor, etc.

[0113] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0114] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0115] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0116] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0117] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

[0118] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that: include: substrate; A pixel definition layer is located on one side of the substrate, and the pixel definition layer is provided with a plurality of pixel openings; an isolation structure located on a side of the pixel definition layer facing away from the substrate, the isolation structure enclosing a plurality of isolation openings, wherein the orthographic projections of the pixel openings on the substrate are located within the orthographic projections of the isolation openings on the substrate; a plurality of light-emitting units, at least a portion of the light-emitting units being located within the pixel opening; A touch layer is located on a side of the isolation structure facing away from the substrate, the touch layer includes multiple touch electrodes, the touch electrodes include a first conductive layer, the first conductive layer is provided with multiple grid openings, the grid openings correspond to the pixel openings, the orthographic projections of the pixel openings on the substrate are located within the orthographic projections of the grid openings on the substrate, points on the edges of the pixel openings correspond to points on the edges of the grid openings, in a cross section in a first direction, the distance between the orthographic projections of the points on the edges of the grid openings and the orthographic projections of the corresponding points on the edges of the corresponding pixel openings on the substrate on the substrate is a first distance, in a cross section in a second direction, the distance between the orthographic projections of the points on the edges of the grid openings and the orthographic projections of the corresponding points on the edges of the corresponding pixel openings on the substrate on the substrate is a second distance, the first distance is equal to the second distance, and the first direction and the second direction intersect.

2. The display panel according to claim 1, wherein: The shape of the orthographic projection of the grid opening on the substrate matches the shape of the orthographic projection of the pixel opening on the substrate.

3. The display panel according to claim 2, wherein: The orthographic projection of at least part of the edge of the pixel opening on the substrate includes a straight edge and / or a right angle, and the orthographic projection of at least part of the corresponding edge of the grid opening on the substrate includes a straight edge and / or a right angle. In any corresponding grid opening and pixel opening, the straight edge of the orthographic projection of the pixel opening on the substrate is corresponding to the straight edge of the orthographic projection of the grid opening on the substrate. Alternatively, the orthographic projection of a portion of the edge of the pixel opening on the substrate includes an arc edge and / or an arc angle, and the orthographic projection of a portion of the edge corresponding to the grid opening on the substrate includes an arc edge and / or an arc angle, and in any corresponding grid opening and pixel opening, the arc edge of the orthographic projection of the pixel opening on the substrate is corresponding to the arc edge of the orthographic projection of the grid opening on the substrate.

4. The display panel according to claim 1, wherein: In the corresponding grid openings and the pixel openings, on any cross section perpendicular to the extension direction of the edge of the pixel opening, the distance between the orthographic projection of a point on the edge of the grid opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding pixel opening on the substrate is equal.

5. The display panel according to claim 1, wherein: The light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit, the pixel openings include a first pixel opening, a second pixel opening, and a third pixel opening, at least a portion of the first light-emitting unit is located within the first pixel opening, at least a portion of the second light-emitting unit is located within the second pixel opening, and at least a portion of the third light-emitting unit is located within the third pixel opening; The distance between the orthographic projection of at least part of the point on the edge of the first pixel opening and the orthographic projection of the corresponding point on the edge of the corresponding grid opening on the substrate is equal to the distance between the orthographic projection of at least part of the point on the edge of the second pixel opening and the orthographic projection of the corresponding point on the edge of the corresponding grid opening on the substrate; the distance between the orthographic projection of at least part of the point on the edge of the second pixel opening and the orthographic projection of the corresponding point on the edge of the corresponding grid opening on the substrate is equal to the distance between the orthographic projection of at least part of the point on the edge of the third pixel opening and the orthographic projection of the corresponding point on the edge of the corresponding grid opening on the substrate.

6. The display panel according to claim 1, wherein: Points on the edge of the isolation opening correspond to points on the edge of the grid opening, the isolation openings include a first isolation opening, a second isolation opening, and a third isolation opening, the pixel openings include a first pixel opening, a second pixel opening, and a third pixel opening, the light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit, at least a portion of the first light-emitting unit is located within the first pixel opening, at least a portion of the second light-emitting unit is located within the second pixel opening, and at least a portion of the third light-emitting unit is located within the third pixel opening, the first isolation opening corresponds to the first pixel opening, the second isolation opening corresponds to the second pixel opening, and the third isolation opening corresponds to the third pixel opening; The distance between the orthographic projections of points on the edge of at least some of the first isolation openings and the orthographic projections of corresponding points on the edges of the corresponding grid openings on the substrate is equal to the distance between the orthographic projections of points on the edge of some of the second isolation openings and the orthographic projections of corresponding points on the edges of the corresponding grid openings on the substrate; The distance between the orthographic projection of a point on the edge of at least part of the second isolation opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding grid opening on the substrate is equal to the distance between the orthographic projection of a point on the edge of part of the third isolation opening on the substrate and the orthographic projection of a corresponding point on the edge of the corresponding grid opening on the substrate.

7. The display panel according to claim 1, wherein: The first conductive layer includes a plurality of first grid lines, and a width of the first grid lines along the first direction is not equal to a width of the first grid lines along the second direction.

8. The display panel according to claim 7, wherein: The light-emitting units include a first light-emitting unit, a second light-emitting unit, and a third light-emitting unit; the number of the third light-emitting units is twice the number of the first light-emitting units or the second light-emitting units, the first light-emitting units and the second light-emitting units are alternately arranged in sequence along the first direction and alternately arranged in sequence along the second direction, the third light-emitting units are arranged in the first direction and along the second direction, a row of the first light-emitting units and the second light-emitting units is arranged between two adjacent rows of the third light-emitting units, and a column of the first light-emitting units and the second light-emitting units is arranged between two adjacent columns of the third light-emitting units; Along the first direction, the width of the first grid line between two adjacent third light-emitting units is greater than the width of the first grid line between the adjacent first light-emitting unit and the second light-emitting unit; along the second direction, the width of the first grid line between two adjacent third light-emitting units is greater than the width of the first grid line between the adjacent first light-emitting unit and the second light-emitting unit.

9. The display panel according to claim 1, wherein: The touch electrode further includes a second conductive layer, which is located on a side of the first conductive layer close to or away from the substrate, and an orthographic projection of the first conductive layer on the substrate is located within an orthographic projection of the second conductive layer on the substrate.

10. The display panel according to claim 9, wherein: The first conductive layer includes multiple first grid lines, and the second conductive layer includes multiple second grid lines. The width of the second grid lines along the first direction is greater than the width of the first grid lines along the first direction, and the width of the second grid lines along the second direction is greater than the width of the first grid lines along the second direction.

11. The display panel according to claim 9, wherein The first conductive layer includes a plurality of first grid lines, and the second conductive layer includes a conductive block, wherein the orthographic projection of the conductive block on the substrate covers the orthographic projection of the first grid lines on the substrate and the orthographic projection of the pixel opening on the substrate.

12. The display panel according to claim 9, wherein: The material of the first conductive layer includes a metal material, and the material of the second conductive layer includes a transparent conductive oxide material.

13. The display panel according to claim 1, wherein: The first distance and / or the second distance is greater than or equal to 1 um.

14. A display panel, characterized in that: include: substrate; A pixel definition layer is located on one side of the substrate, and the pixel definition layer is provided with a plurality of pixel openings; an isolation structure located on a side of the pixel definition layer facing away from the substrate, the isolation structure enclosing a plurality of isolation openings, wherein the orthographic projections of the pixel openings on the substrate are located within the orthographic projections of the isolation openings on the substrate; a plurality of light-emitting units, at least a portion of the light-emitting units being located within the pixel opening; A touch layer is located on a side of the isolation structure facing away from the substrate, the touch layer includes multiple touch electrodes, the touch electrodes include a first conductive layer, the first conductive layer is provided with multiple grid openings, the grid openings correspond to the pixel openings, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the grid opening on the substrate, and the shape of the orthographic projection of the grid opening on the substrate is adapted to the shape of the orthographic projection of the pixel opening on the substrate.

15. The display panel according to claim 14, wherein: The orthographic projection of at least part of the edge of the pixel opening on the substrate includes a straight edge and / or a right angle, and the orthographic projection of at least part of the corresponding edge of the grid opening on the substrate includes a straight edge and / or a right angle. In any corresponding grid opening and pixel opening, the straight edge of the orthographic projection of the pixel opening on the substrate is corresponding to the straight edge of the orthographic projection of the grid opening on the substrate. Alternatively, the orthographic projection of a portion of the edge of the pixel opening on the substrate includes an arc edge and / or an arc angle, and the orthographic projection of a portion of the edge corresponding to the grid opening on the substrate includes an arc edge and / or an arc angle, and in any corresponding grid opening and pixel opening, the arc edge of the orthographic projection of the pixel opening on the substrate is corresponding to the arc edge of the orthographic projection of the grid opening on the substrate.

16. The display panel according to claim 14, wherein: The points on the edge of the pixel opening correspond to the points on the edge of the grid opening. In the corresponding grid openings and the pixel openings, on any cross section perpendicular to the extension direction of the edge of the pixel opening, the distances between the orthographic projections of the points on the edge of the grid opening on the substrate and the orthographic projections of the corresponding points on the edge of the corresponding pixel opening on the substrate are equal.

17. A display panel, characterized in that: include: substrate; A pixel definition layer is located on one side of the substrate, and the pixel definition layer is provided with a plurality of pixel openings; an isolation structure located on a side of the pixel definition layer facing away from the substrate, the isolation structure enclosing a plurality of isolation openings, wherein the orthographic projections of the pixel openings on the substrate are located within the orthographic projections of the isolation openings on the substrate; a plurality of light-emitting units, at least a portion of the light-emitting units being located within the pixel opening; A touch layer is located on the side of the isolation structure facing away from the substrate, the touch layer includes multiple touch electrodes, the touch electrodes include a first conductive layer and a second conductive layer, the second conductive layer is located on the side of the first conductive layer close to or away from the substrate, and the orthographic projection of the first conductive layer on the substrate is located within the orthographic projection of the second conductive layer on the substrate.

18. The display panel according to claim 17, wherein: The first conductive layer includes a plurality of first grid lines, the second conductive layer includes a plurality of second grid lines, the width of the second grid lines along the first direction is greater than the width of the first grid lines along the first direction, and the width of the second grid lines along the second direction is greater than the width of the first grid lines along the second direction; or, the first conductive layer includes a plurality of first grid lines, the second conductive layer includes a conductive block, the orthographic projection of the conductive block on the substrate covers the orthographic projection of the first grid lines on the substrate and the orthographic projection of the pixel opening on the substrate.

19. The display panel according to claim 17, wherein: The first conductive layer is provided with a plurality of grid openings, the grid openings corresponding to the pixel openings, the orthographic projections of the pixel openings on the substrate being located within the orthographic projections of the grid openings on the substrate, and the shape of the orthographic projections of the grid openings on the substrate being adapted to the shape of the orthographic projections of the pixel openings on the substrate.

20. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 19.

Images