Display panels, display devices and equipment

Abstract

This application provides a display panel, display device, and apparatus. The display panel includes: a substrate, including a base and a driving unit; a planarization layer, including a first via; a first electrode layer, including a plurality of first electrodes; a pixel definition layer disposed on one side of the substrate, the pixel definition layer including a pixel defining portion and a pixel opening, the orthographic projection of the pixel opening onto the substrate and the orthographic projection of the first electrode onto the substrate at least partially overlapping; an isolation structure disposed on the side of the substrate where the pixel definition layer is located and enclosing a plurality of isolation openings, the isolation openings communicating with the pixel openings; and a light-emitting functional layer, including light-emitting units located in the isolation openings, at least a portion of the light-emitting units located in the pixel openings, wherein the driving unit and the first electrode are electrically connected via the first via to drive the light-emitting units to emit light, and the driving unit connected to at least one first electrode includes two or more driving transistors. This application can improve the performance of the display panel.

Description

Technical Field

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

[0002] Organic light-emitting diode (OLED) display technology is considered the most promising next-generation display technology. Compared with liquid crystal display technology, OLED display technology has advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle, and fast response speed.

[0003] In the traditional OLED display panel manufacturing process, a fine metal mask (FMM) is typically used to pattern the light-emitting pixels. FMM technology is mature and has extensive mass production experience. However, FMM technology also suffers from limitations in precision and high cost. Fine metal mask-less technology eliminates the limitations of traditional OLED processes on display size, resolution, and other screen performance characteristics, offering advantages such as high performance, full-size display, and agile delivery. Patents CN118251982A, CN116648095A, CN117062489A, CN118742138A, CN118678783A, CN118660598A, CN118675450A, CN118824188A, and CN118781966A describe relevant content regarding fine metal mask-less technology and are provided for reference.

[0004] However, the performance of current OLED display products needs improvement. Summary of the Invention

[0005] This application provides a display panel, display device, and equipment, which aim to improve the performance of the display panel.

[0006] An embodiment of the first aspect of this application provides a display panel, comprising: a substrate, including a substrate and a driving unit disposed on one side of the substrate; a planarization layer located on the side of the driving unit away from the substrate and including a first through hole; a first electrode layer disposed on one side of the substrate and including a plurality of first electrodes; a pixel definition layer disposed on one side of the substrate, the pixel definition layer including a pixel defining portion and a pixel opening formed by the pixel defining portion, the orthographic projection of the pixel opening on the substrate and the orthographic projection of the first electrode on the substrate at least partially overlapping; an isolation structure disposed on the side of the substrate where the pixel definition layer is located and forming a plurality of isolation openings, the isolation openings communicating with the pixel openings; and a light-emitting functional layer including a light-emitting unit located in the isolation opening, at least a portion of the light-emitting unit being located in the pixel opening, wherein the driving unit and the first electrode are electrically connected via the first through hole, and at least one driving unit includes two or more driving transistors, the driving transistors being electrically connected to the first electrode and used to transmit driving current to the light-emitting unit to drive the light-emitting unit to emit light.

[0007] The second aspect of this application also provides a display device, including the display panel provided in any of the first aspect embodiments described above.

[0008] An embodiment of the third aspect of this application also provides an apparatus including the display panel provided in any of the first aspect embodiments described above.

[0009] In the display panel provided in this application embodiment, the display panel includes a substrate, a planarization layer, a first electrode layer, a pixel definition layer, an isolation structure, and a light-emitting functional layer. The substrate includes a substrate and a driving unit. The driving unit drives the light-emitting unit of the light-emitting functional layer to emit light. The planarization layer improves the flatness of the film layer, allowing the first electrode to be disposed on a flatter film layer, thus improving the display difference problem caused by the reflection of light from the first electrode. A first connecting hole is provided on the first planarization layer, allowing the first electrode to be electrically connected to the driving unit through the first connecting hole. The projections of the first electrode of the first electrode layer and the pixel opening of the pixel definition layer at least partially overlap, allowing at least a portion of the first electrode to be exposed through the pixel opening and to contact and connect with the light-emitting unit within the pixel opening to drive the light-emitting unit to emit light for display. The pixel definition portion is used to improve the problem of mutual interference between adjacent light-emitting units. The isolation structure encloses and forms an isolation opening. The isolation structure can be used to separate the light-emitting material into mutually independent light-emitting units, simplifying the fabrication of the display panel. At least one driving unit includes two or more driving transistors, which provide driving signals to the same first electrode, facilitating the setting of a larger area for the first electrode and the light-emitting unit, making it more suitable for large-screen display devices. Attached Figure Description

[0010] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0011] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0012] Figure 2 This is a schematic diagram of the structure of a driving unit for a display panel provided in an embodiment of this application;

[0013] Figure 3 yes Figure 1 A partially enlarged structural diagram;

[0014] Figure 4 yes Figure 3 A partial sectional view;

[0015] Figure 5 This is a schematic diagram of the pixel driving circuit of a display panel provided in an embodiment of this application;

[0016] Figure 6 In another example Figure 3 A partial sectional view;

[0017] Figure 7 This is a schematic diagram of the pixel driving circuit of a display panel provided in another embodiment of this application;

[0018] Figure 8 This is a schematic diagram of the pixel driving circuit of a display panel according to another embodiment of this application;

[0019] Figure 9 This is a schematic diagram showing the relative positional relationship between the pixel driving circuit and the first electrode of a display panel according to an embodiment of this application.

[0020] Figure 10 This is a schematic diagram showing the relative positional relationship between the pixel driving circuit and the first electrode of a display panel according to another embodiment of this application;

[0021] Figure 11 This is a schematic diagram showing the relative positional relationship between the pixel driving circuit and the first electrode of a display panel according to another embodiment of this application;

[0022] Figure 12 yes Figure 3 A partially enlarged structural diagram;

[0023] Figure 13 yes Figure 4 A partially enlarged structural diagram;

[0024] Figure 14 In another example Figure 4 A partially enlarged structural diagram;

[0025] Figure 15 In another example Figure 3 A partially enlarged structural diagram;

[0026] Figure 16 In another example Figure 1 A partially enlarged structural diagram;

[0027] Figure 17 This is yet another example Figure 1 A partially enlarged structural diagram;

[0028] Figure 18 yes Figure 2 A partially enlarged structural diagram;

[0029] Figure 19 This is yet another example Figure 4 A partially enlarged structural diagram;

[0030] Figure 20 Is this another example? Figure 4 A partially enlarged structural diagram.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Display panel; 100. Substrate; 100a. Substrate; 110. Driving unit; 110a. First driving unit; 110b. Second driving unit; 111. Pixel driving circuit; T1. Driving transistor; T2. Switching transistor; 120. Planarization layer; 121. First via; 130. First signal line; 140. Second signal line;

[0033] 200, Pixel definition layer; 201, First definition layer; 202, Second definition layer; 210, Pixel limiting part; 220, Pixel opening; 220a, First sub-opening; 221, First pixel opening; 222, Second pixel opening; 223, Third pixel opening; 230, Light-emitting unit; 230a, Sub-light-emitting unit; 231, First light-emitting unit; 232, Second light-emitting unit; 233, Third light-emitting unit; EML, Light-emitting material layer;

[0034] 300, Isolation structure; 301, First sub-layer; 3011, First side surface; 3011a, First sub-surface; 3011b, Second sub-surface; 3012, First bottom surface; 3013, Cover; 302, Second sub-layer; 303, Third sub-layer; 310, Isolation opening; 310a, Second sub-opening; 311, First isolation opening; 312, Second isolation opening; 313, Third isolation opening;

[0035] 400, First electrode layer; 410, First electrode; 411, Sub-electrode;

[0036] 500, Second electrode layer; 510, Second electrode; 511, Main body; 512, Contact portion;

[0037] 600, Encapsulation layer; 610, First encapsulation layer; 611, Encapsulation section; 611a, First segment; 611b, Second segment; 620, Second encapsulation layer; 630, Third encapsulation layer;

[0038] α1, First included angle; α2, Second included angle; α3, Third included angle; L, First distance; h, First height; W1, First width; W2, Second width; W3, Third width;

[0039] AA, display area; NA, non-display area; X, first direction; Y, second direction; Z, thickness direction. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. It should be noted that, unless otherwise specified, different features in the embodiments of this application can be combined with each other.

[0043] For ease of understanding, the accompanying drawings show mutually orthogonal X-axis, Y-axis, and Z-axis. The direction along the X-axis is called the X-direction, the direction along the Y-axis is called the Y-direction, and the direction along the Z-axis is called the Z-direction. The Z-direction is the normal direction relative to the plane containing the X and Y directions. Furthermore, the view of various elements parallel to the plane containing the X and Y directions is called a top view. Alternatively, the plane in the X and Y directions can be a plane parallel to the display surface of the display panel 10, and the Z-direction can be a direction parallel to the thickness direction Z of the display panel 10.

[0044] For certain elements, terms like "above" or "overhead" are sometimes used when describing the position of an element in the Z direction, and "below" or "under" are used when describing the position of an element in the opposite direction. Furthermore, when using terms like "above," "overhead," "below," "under," or "relative" to define the positional relationship between two elements, this includes not only the state where the two elements are directly adjacent, but also the state where the two elements are separated by gaps or other elements. Additionally, terms like "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0045] For large-screen display devices such as televisions, it's rare to directly use true OLED subpixels. Instead, related technologies often employ a single backlight unit and quantum dot materials to alter the emitted light color, thus achieving color display and creating subpixels of different colors. Alternatively, a single-color backlight unit can be used, with filtering and other techniques employed to change the emitted light color and create subpixels of different colors. This significantly increases the display device's power consumption and negatively impacts its display quality.

[0046] Fine-mask-free technology eliminates the limitations of traditional OLED processes on display size, resolution, and other screen performance aspects, offering advantages such as high performance, full-size display, and agile delivery. Combining fine-mask-free technology with OLED subpixels for large-screen displays such as televisions is becoming a trend. However, due to the large display area and low pixel density of large-screen displays like televisions, the subpixel area is typically set to be large. Therefore, the pixel driver circuit needs to provide 2 to 25 times more current than that of smaller screen products like mobile phones. Consequently, the power supply capacity and device stability of the pixel driver circuit face severe challenges. Insufficient power supply to the pixel driver circuit results in low brightness in TV products, preventing the achievement of high brightness, while excessive current causes device characteristic drift, leading to color accuracy changes (color shift) or reduced brightness.

[0047] To address the aforementioned technical problems, this application is proposed. For a better understanding of this application, the appendix is ​​provided below. Figure 19 The display panel 10, display device and equipment provided in this application will be described.

[0048] Figure 1This is a schematic diagram of the structure of a display panel 10 according to one embodiment of this application. The display panel 10 may be an organic light-emitting diode (OLED) display panel or a quantum dot (QLED) display panel. The display panel 10 includes a display area AA with display function and a non-display area NA.

[0049] The shape of the display area AA of the display panel 10 can be rectangular, square, circular, oval, or other shapes.

[0050] The display area AA includes a plurality of pixels PX arranged in the X and Y directions. Each pixel PX includes a plurality of sub-pixels SPX displaying different colors. In some embodiments, a pixel PX includes 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 SPX2, and the third sub-pixel SPX3 is a red sub-pixel SPX3. In some embodiments, in addition to sub-pixels SPX1, SPX2, and SPX3, a pixel PX also includes sub-pixels SPX that emit white or other colors of light.

[0051] Sub-pixels (SPX) include pixel driving circuits and light-emitting devices that emit light of the corresponding color, driven by the pixel driving circuits. First sub-pixel SPX1 includes a first light-emitting device, second sub-pixel SPX2 includes a second light-emitting device, and third sub-pixel SPX3 includes a third light-emitting device. One pixel driving circuit drives at least one light-emitting device to emit light. For example, display area AA includes a normal display area AA and a light-transmitting display area AA. The light-transmitting display area AA is a display area AA that corresponds to a sensor and has light-transmitting properties, while the normal display area AA is a display area AA that does not correspond to a sensor. In the normal display area AA, one pixel driving circuit drives one light-emitting device to emit light, and in the light-transmitting display area AA, one pixel driving circuit drives one or more light-emitting devices to emit light.

[0052] like Figures 2 to 5As shown, an embodiment of the first aspect of this application provides a display panel 10, which includes: a substrate 100, including a substrate 100a and a driving unit 110 disposed on one side of the substrate 100a; a planarization layer 120, located on the side of the driving unit 110 away from the substrate 100a and including a first through hole 121; a first electrode layer 400, disposed on one side of the substrate 100 and including a plurality of first electrodes 410; and a pixel definition layer 200, disposed on one side of the substrate 100, the pixel definition layer 200 including a pixel defining portion 210 and a pixel opening 220 formed by the pixel defining portion 210. The orthographic projection of the aperture 220 on the substrate 100a and the orthographic projection of the first electrode 410 on the substrate 100a overlap at least partially; an isolation structure 300 is disposed on the side of the pixel definition layer 200 of the substrate 100 and surrounds to form a plurality of isolation openings 310, the isolation openings 310 and the pixel openings 220 are connected; a light-emitting functional layer includes a light-emitting unit 230 located in the isolation openings 310, at least a portion of the light-emitting unit 230 is located in the pixel openings 220, wherein the driving unit 110 and the first electrode 410 are electrically connected via a first connecting hole 121, and at least one driving unit 110 includes two or more driving transistors T1, the driving transistors T1 are electrically connected to the first electrode 410 and are used to transmit driving current to the light-emitting unit 230 to drive the light-emitting unit 230 to emit light.

[0053] In the display panel 10 provided in this embodiment, the display panel 10 includes a substrate 100, a planarization layer 120, a first electrode layer 400, a pixel definition layer 200, an isolation structure 300, and a light-emitting functional layer. The substrate 100 includes a substrate 100a and a driving unit 110. The driving unit 110 is used to drive the light-emitting unit 230 of the light-emitting functional layer to emit light. The planarization layer 120 is used to improve the flatness of the film layer, so that the first electrode 410 is disposed on a flatter film layer, thereby improving the display difference problem caused by the reflection of light by the first electrode 410. A first connecting hole 121 is provided on the first planarization layer 120, so that the first electrode 410 can be electrically connected to the driving unit 110 through the first connecting hole 121. The projections of the first electrode 410 of the first electrode layer 400 and the pixel opening 220 of the pixel definition layer 200 at least partially overlap, so that at least part of the first electrode 410 can be exposed through the pixel opening 220 and contact and connect with the light-emitting unit 230 in the pixel opening 220 to drive the light-emitting unit 230 to emit light for display. The pixel limiting portion 210 is used to improve the problem of light interference between two adjacent light-emitting units 230. The isolation structure 300 encloses and forms an isolation opening 310. The isolation structure 300 can be used to separate the light-emitting material into independent light-emitting units 230 to simplify the fabrication of the display panel 10. At least one driving unit 110 includes two or more driving transistors T1, which provide driving signals to the same first electrode 410. This allows for a larger area of ​​the first electrode 410 and the light-emitting unit 230, making it more suitable for large-screen display devices.

[0054] Furthermore, in the display panel 10 provided in the application embodiment, since two or more driving transistors T1 are connected to the same first electrode 410, even when the display panel 10 is used in large-screen display devices such as televisions and the pixel opening 220 area is large, it can still ensure that the light-emitting unit 230 can be driven and displayed well, thus ensuring the display effect of the display panel 10.

[0055] There are multiple, selectable ways to set up the substrate 100, such as... Figure 4 As shown, the substrate 100 includes a substrate 100a and a driving unit 110, which may include a pixel driving circuit 111. For example, the substrate 100 includes a substrate 100a and a driving circuit layer and a planarization layer 120 disposed on the substrate 100a. The pixel driving circuit 111 includes a transistor and a capacitor. The capacitor includes a first electrode and a second electrode. The transistor includes a source, a drain, a gate, and a semiconductor layer. The driving circuit layer also includes multiple signal lines, such as data signal lines, scan signal lines, power signal lines, etc. The driving circuit layer includes multiple conductive layers, including a first conductive layer, a second conductive layer, and a third conductive layer. The gate and the first electrode may be located on the first conductive layer, the second electrode may be located on the second conductive layer, and the source and drain may be located on the third conductive layer.

[0056] Optional, see reference Figure 5 The pixel driving circuit 111 includes a driving transistor T1 and a switching transistor T2. The first terminal of the switching transistor T2 is connected to a data line providing the data signal "Data," and the gate of the switching transistor T2 is connected to a scan line providing the scan signal "Scan." The second terminal of the switching transistor T2 is electrically connected to the driving transistor T1 for transmitting the data signal to the driving transistor T1. One of the first and second terminals of the switching transistor T2 is the source, and the other is the drain. One plate of the storage capacitor C1 is connected to the gate of the driving transistor T1 to maintain the voltage at the gate of the driving transistor T1. The driving transistor T1 is connected between the power supply signal line VDD and the light-emitting device to drive the light-emitting device to emit light. Figure 5 This is one embodiment of the pixel driving circuit 111, but the pixel driving circuit 111 of this application is not limited to... Figure 5 The pixel driving circuit 111 of 2T1C shown can also be other pixel driving circuits 111, such as 7T1C, 8T1C pixel driving circuits 111, etc.

[0057] Optionally, in this embodiment, the driving unit 110 is used to drive the light-emitting unit 230. The driving unit 110 and the light-emitting unit 230 are configured in a one-to-one correspondence. The sub-pixel PX includes the light-emitting unit 230, and the sub-pixel PX and the light-emitting unit 230 are configured in a one-to-one correspondence. Different driving units 110 are connected to different scan signal lines or data signal lines. The driving unit 110 may include one or more pixel driving circuits 111. When the driving unit 110 includes multiple pixel driving circuits 111, the multiple pixel driving circuits 111 of the same driving unit 110 are configured to correspond to the same sub-pixel PX, and the multiple pixel driving circuits 111 of the same driving unit 110 are connected to the same data signal line and the same scan signal line, so that the multiple pixel driving circuits 111 of the same driving unit 110 are driven by the same signal.

[0058] Optionally, each first electrode 410 is disposed corresponding to each pixel opening 220, and the first electrode 410 is used to drive the light-emitting unit 230 to emit light. A portion of the first electrode 410 is exposed through the pixel opening 220, and another portion of the first electrode 410 is located between the pixel defining portion 210 and the substrate 100.

[0059] The first electrode 410 may include a multilayer structure, such as 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, using silver, a metallic material with excellent light reflectivity. Each conductive oxide layer can be formed, for example, from a transparent conductive oxide such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), or IGZO (Indium Gallium Zinc Oxide). The second electrode 510 is formed, for example, from a metallic material such as an alloy of magnesium and silver (MgAg).

[0060] There are various ways to set the material of the pixel definition layer 200. For example, the material of the pixel definition layer 200 is an inorganic material. For example, the pixel definition layer 200 is formed using at least one of silicon nitride (SiNx), silicon oxide (SiOx), and silicon oxynitride (SiON) as an inorganic insulating material.

[0061] In one implementation, such as Figure 6 As shown, the pixel definition layer 200 includes multiple sub-layers. The pixel definition layer 200 includes a first definition layer 201 and a second definition layer 202 that are stacked sequentially along the direction away from the substrate 100. That is, the pixel definition layer 200 can adopt a double-layer design.

[0062] For example, the first defining layer 201 has better film-forming properties than the second defining layer 202. That is, under the same thickness conditions, the first defining layer 201 can better cover the stepped structure formed by the first electrode 410 than the second defining layer 202, without causing cracks. Conversely, to obtain the same stepped coverage effect, the thickness of the first defining layer 201 needs to be thinner than that of the second defining layer 202. That is, the thickness requirement for the first defining layer 201 is relatively low, which is beneficial for product thinning. In addition, better film-forming properties are reflected in the better coverage of the formed film, which is denser and more conducive to the isolation of moisture. That is, the material density of the first defining layer 201 is greater than that of the second defining layer 202.

[0063] For example, the second defining layer 202 has better etching resistance than the first defining layer 201. Since the side of the pixel defining layer 200 facing away from the substrate 100 will be etched during the manufacturing process of the display panel 10, by selecting a material with stronger etching resistance as the second defining layer 202, the etching resistance of the pixel defining layer 200 can be improved, thereby further improving the reliability of the display panel 10.

[0064] For example, the first defining layer 201 and the second defining layer 202 are made of different materials. For instance, the first defining layer 201 is made of silicon nitride, and the second defining layer 202 is made of silicon oxide.

[0065] For example, the thickness of the first defining layer 201 is greater than or equal to 1000 micrometers and less than or equal to 5000 micrometers. For instance, the thickness of the first defining layer 201 is 1000 micrometers, 2000 micrometers, 3000 micrometers, 4000 micrometers, 5000 micrometers, etc.

[0066] For example, the thickness of the second defining layer 202 is greater than or equal to 500 micrometers and less than or equal to 3000 micrometers. For instance, the thickness of the second defining layer 202 is 500 micrometers, 1000 micrometers, 2000 micrometers, 3000 micrometers, etc.

[0067] In some alternative embodiments, the isolation structure 300 includes a first sublayer 301 and a second sublayer 302 stacked in a direction away from the substrate 100, the second sublayer 302 protruding relative to the first sublayer 301 toward the isolation opening 310.

[0068] In these alternative embodiments, the isolation structure 300 includes a first sub-layer 301 and a second sub-layer 302, the second sub-layer 302 protruding relative to the first sub-layer 301 toward the isolation opening 310, such that a recess can be formed beneath the second sub-layer 302. During the fabrication of the light-emitting unit 230, the light-emitting material can be broken into independent light-emitting units 230 at the edge of the second sub-layer 302.

[0069] Optionally, the isolation structure 300 further includes a third sub-layer 303, which is located on the side of the first sub-layer 301 facing the substrate 100, and protrudes from the first sub-layer 301 toward the isolation opening 310. During the fabrication of the isolation structure 300, when the first sub-layer 301 is side-etched, the third sub-layer 303 can provide protection to the film layer on the substrate 100 side.

[0070] Optionally, the materials of the first sub-layer 301 and the second sub-layer 302 are different, and the etching rate of the first sub-layer 301 is lower than that of the second sub-layer 302. The material of the first sub-layer 301 includes conductive materials, specifically including at least one of aluminum (Al), aluminum alloy, and copper. The aluminum alloy may include at least one of aluminum-neodymium alloy (AlNd), aluminum-yttrium alloy (AlY), or aluminum-silicon alloy (AlSi). The second sub-layer 302 can be a single-layer structure or a multi-layer structure. If the second sub-layer 302 is a single-layer structure, the material of the second sub-layer 302 may include at least one of titanium, titanium nitride, molybdenum, tungsten, molybdenum-tungsten alloy, or molybdenum-niobium alloy. If the second sub-layer 302 is a multi-layer structure, one layer of the second sub-layer 302 may be made of at least one of titanium, titanium nitride, molybdenum, tungsten, molybdenum-tungsten alloy, or molybdenum-niobium alloy, and the other layer of the second sub-layer 302 may be made of conductive oxide or inorganic insulating material. The conductive oxide may be, for example, indium tin oxide (ITO) or indium zinc oxide (IZO).

[0071] Optionally, the material of the third sublayer 303 includes a conductive material. For example, the material of the third sublayer 303 may include at least one of molybdenum (Mo), titanium (Ti), titanium nitride (TiN), molybdenum-tungsten alloy (MoW), or molybdenum-niobium alloy (MoNb).

[0072] Optional, such as Figure 3 and Figure 4 As shown, the display panel 10 further includes a second electrode layer 500, which includes a second electrode 510 located on the side of each light-emitting unit 230 facing away from the substrate 100. Optionally, the light-emitting device is composed of the first electrode 410, the light-emitting unit 230, and the second electrode 510 described above. Optionally, the second electrode 510 is located in each isolation opening 310. Optionally, the second electrode 510 is electrically connected to the isolation structure 300. For example, the material of the first sub-layer 301 includes a conductive material, and the second electrode 510 is electrically connected to the first sub-layer 301. Alternatively, the materials of both the first sub-layer 301 and the third sub-layer 303 include conductive materials, and the second electrode 510 is electrically connected to the third sub-layer 303 and the first sub-layer 301.

[0073] Optionally, at least one light-emitting unit 230 includes a hole injection layer HIL, a hole transport layer HTL, an electron blocking layer EBL, a light-emitting material layer EML, a hole blocking layer HBL, an electron transport layer ETL, and an electron injection layer EIL stacked along a direction away from the substrate 100 (thickness direction Z). The light-emitting unit 230 may include a single light-emitting material layer EML, or a stacked light-emitting structure including multiple light-emitting material layers EML.

[0074] During the light emission process of the light-emitting unit 230, the first electrode 410 is used to generate holes, and the second electrode 510 is used to generate electrons. Holes and electrons combine within the light-emitting unit 230, causing the light-emitting unit 230 to emit light. The first electrode 410 is in contact with the light-emitting unit 230, and a portion of the light-emitting unit 230 may overlap with the isolation structure 300. This can cause holes to crosstalk between adjacent light-emitting units 230 through the light-emitting unit 230 and the isolation structure 300. In this embodiment, the pixel limiting portion 210 is provided with a recess, which allows at least a portion of the light-emitting unit 230 to break at the recess, thereby reducing the hole transmission area and improving the problem of lateral crosstalk.

[0075] In order for the light-emitting unit 230 to emit light, a pixel voltage is provided to the first electrode 410 and a common voltage is provided to the second electrode 510, respectively, forming a potential difference between the first electrode 410 and the second electrode 510, so that the light-emitting structure disposed between the first electrode 410 and the second electrode 510 emits light. In one embodiment, if a potential difference is formed between the first electrode 410 and the second electrode 510 of the light-emitting unit 230, the light-emitting material layer EML of the light-emitting unit 230 emits light.

[0076] In this circuit, the pixel voltage of the first electrode 410 is provided by the pixel driving circuit 111, and the common voltage of the second electrode 510 is provided by the isolation structure 300. Specifically, the second electrode 510 is electrically connected to the isolation structure 300, and the common voltage is supplied to the second electrode 510 by providing the isolation structure 300. That is, the isolation structure 300 has the function of supplying a common voltage to the second electrode 510.

[0077] The display panel 10 also includes a first encapsulation layer 610, which includes a plurality of encapsulation portions 611. The encapsulation portions 611 are located on the side of the second electrode 510 away from the substrate 100 and extend through the sidewall of the isolation structure 300 to the side of the isolation structure 300 away from the substrate 100.

[0078] For example, such as Figure 4 As shown, the encapsulation part 611 includes a first segment 611a and a second segment 611b that are connected to each other. The first segment 611a is located inside the isolation opening 310 and is disposed on the side of the light-emitting unit 230 away from the substrate 100. The second segment 611b is located on the side of the isolation structure 300 facing the isolation opening 310. The surface of the first segment 611a away from the substrate 100 and the surface of the second segment 611b away from the isolation structure 300 are at least partially connected to each other to enclose and form a gap space.

[0079] For example, such as Figure 6As shown, the surface of the first segment 611a facing away from the substrate 1 and the surface of the second segment 611b facing away from the isolation structure 300 may not be connected.

[0080] In some alternative embodiments, such as Figures 1 to 7 As shown, the driving unit 110 includes a pixel driving circuit 111, and the pixel driving circuit 111 includes two or more driving transistors T1. The two or more driving transistors T1 of the pixel driving circuit 111 connected to the same first electrode 410 are connected in parallel.

[0081] In these alternative embodiments, the driving capability of the pixel driving circuit 111 is improved by increasing the number of driving transistors T1 in the pixel driving circuit 111, thereby increasing the current of the driving unit 110 and improving the display effect. This does not require increasing the number of pixel driving circuits 111, and the structure of the driving unit 110 of the display panel 10 can be simplified.

[0082] When the pixel driving circuit 111 includes two driving transistors T1, and the two driving transistors T1 are connected to the same first electrode 410, the two or more driving transistors T1 connected to the same first electrode 410 are electrically connected to the first electrode 410 through the same first through hole 121. This reduces the number of openings on the planarization layer 120 and simplifies the fabrication of the planarization layer 120.

[0083] Optional, such as Figure 4 As shown, in the same pixel driving circuit 111, the source or drain of two driving transistors T1 are connected to the first electrode 410 through the same first through hole 121.

[0084] In some other alternative embodiments, such as Figure 2 , Figures 8 to 10 As shown, the driving unit 110 includes two or more pixel driving circuits 111, each pixel driving circuit 111 includes a driving transistor T1, and the driving transistors T1 of the two or more pixel driving circuits 111 are connected to the same first electrode 410.

[0085] In these alternative embodiments, by increasing the number of pixel driving circuits 111 without changing the original structure of the pixel driving circuits 111, the driving effect of the driving unit 110 can be guaranteed.

[0086] When the same driving unit 110 includes two or more pixel driving circuits 111, such as Figure 9 As shown, the driving transistors T1 of two or more pixel driving circuits 111 are connected to the same first electrode 410 via the same first via 121 to simplify the fabrication of the planarization layer 120. Alternatively, as... Figure 10As shown, the first electrode 410 is provided with two or more first connecting holes 121, and the orthographic projections of the two or more first connecting holes 121 corresponding to the same first electrode 410 on the substrate 100a are distributed at intervals around the orthographic projection of the first electrode 410 on the substrate 100a. Two or more pixel driving circuits 111 connected to the same first electrode 410 and the first connecting holes 121 are arranged in a one-to-one correspondence. This allows the first connecting holes 121 to be set at different positions according to the structure of the pixel driving circuit 111, thus shortening the connection path length between the first electrode 410 and the driving transistor T1.

[0087] In some alternative embodiments, such as Figure 11 As shown, the first electrode 410 includes two or more sub-electrodes 411, the driving unit 110 includes two or more pixel driving circuits 111, each pixel driving circuit 111 includes a driving transistor T1, the sub-electrodes 411 and the pixel driving circuits 111 are arranged in a one-to-one correspondence, each sub-electrode 411 is provided with a first connecting hole 121, and the driving transistor T1 of each pixel driving circuit 111 is electrically connected to the sub-electrode 411 through the first connecting hole 121.

[0088] In these optional embodiments, the same first electrode 410 is divided into multiple sub-electrodes 411. Each sub-electrode 411, pixel driving circuit 111, driving transistor T1, and first connecting hole 121 are configured in a one-to-one correspondence. This improves the connection yield between the pixel driving transistor T1 and the sub-electrodes 411, thereby enhancing the display effect. Furthermore, when one of the multiple sub-electrodes 411 in the first electrode 410 experiences a manufacturing defect, the other sub-electrodes 411 are less likely to be affected.

[0089] The first electrode 410 and the light-emitting unit 230 are configured in a one-to-one correspondence, and the sub-pixel PX includes a first electrode 410.

[0090] The number of sub-electrodes 411 included in the first electrode 410 can be set in various ways, such as... Figure 11 As shown, in some optional embodiments, the first electrode 410 includes two sub-electrodes 411, the two sub-electrodes 411 of the same first electrode 410 are spaced apart along the second direction Y, and the two first connecting holes 121 corresponding to the two sub-electrodes 411 of the same first electrode 410 are located on the side opposite to each other in the second direction Y.

[0091] In these optional embodiments, in the same first electrode 410, the first connecting holes 121 corresponding to the two sub-electrodes 411 are located on opposite sides rather than between two adjacent sub-electrodes 411, which makes it easier to reduce the spacing between the two sub-electrodes 411 in the first electrode 410 as needed, thereby improving the light emission effect of the same light-emitting unit 230.

[0092] In some alternative embodiments, such as Figures 2 to 4 , Figure 11 As shown, the substrate 100 also includes a first signal line 130 extending along a first direction X and a second signal line 140 extending along a second direction Y. Multiple pixel driving circuits 111 connected to multiple sub-electrodes 411 of the same first electrode 410 are connected to the same first signal line 130 and the same second signal line 140. The first signal line 130 includes at least one of a scan signal line and a light emission control signal line, and the second signal line 140 includes a data signal line.

[0093] In these alternative embodiments, the multiple pixel driving circuits 111 included in the same driving unit 110 are connected to the same first signal line 130 and second signal line 140, and the multiple pixel driving circuits 111 of the same driving unit 110 are driven by the same signal, which simplifies the circuit structure of the display panel 10.

[0094] Optionally, when the first signal line 130 includes a scan signal line, the scan signal line can be configured in various ways. For example, one scan signal line may correspond to the same driving unit 110, and multiple pixel driving circuits 111 included in the same driving unit 110 may be connected to the same scan signal line. Alternatively, multiple scan signal lines may be configured for the same driving unit 110, such as a first scan signal line and a second scan signal line, and multiple pixel driving circuits 111 of the same driving unit 110 may be connected to the same first scan signal line and the same second scan signal line.

[0095] Optional, such as Figures 11 to 12 As shown, when the first electrode 410 is divided into multiple sub-electrodes 411, the light-emitting unit 230 can be divided into multiple sub-light-emitting units 230a, or the light-emitting unit 230 can be undivided, with the same light-emitting unit 230 corresponding to multiple sub-electrodes 411 of the same first electrode 410. For example, as... Figure 12 As shown, in some optional embodiments, the light-emitting unit 230 includes two or more sub-light-emitting units 230a, and the sub-light-emitting units 230a and sub-electrodes 411 are arranged in a one-to-one correspondence. The pixel opening 220 includes two or more first sub-openings 220a, and at least a portion of the sub-light-emitting units 230a is located in the first sub-openings 220a. The isolation opening 310 includes two or more second sub-openings 310a, and each sub-light-emitting unit 230a is located in each second sub-opening 310a.

[0096] In these optional embodiments, the sub-electrode 411, the sub-light-emitting unit 230a, the first sub-opening 220a and the second sub-opening 310a are arranged in a one-to-one correspondence, so that when one of the sub-light-emitting units 230a malfunctions, it will not cause malfunctions in the other sub-light-emitting units 230a.

[0097] And / or, in some other alternative embodiments, such as Figure 12 As shown, the pixel opening 220 includes two or more first sub-openings 220a, and the first sub-openings 220a and the sub-electrodes 411 are arranged in a one-to-one correspondence. The two or more first sub-openings 220a are arranged in the same isolation opening 310, and at least a portion of the light-emitting unit 230 in the same isolation opening 310 is located in the two or more first sub-openings 220a.

[0098] In these optional embodiments, the sub-electrodes 411 and the first sub-openings 220a are arranged in a one-to-one correspondence, with each sub-electrode 411 exposed through its respective first sub-opening 220a to contact the light-emitting unit 230. However, the light-emitting unit 230 and the isolation opening 310 are not separated, which simplifies the fabrication of the isolation structure 300 and the light-emitting unit 230, simplifies the fabrication process of the isolation structure 300 and the light-emitting unit 230, and improves the fabrication efficiency of the display panel 10.

[0099] Optionally, when the first electrode 410 is not divided into multiple sub-electrodes 411, the light-emitting unit 230, the pixel opening 220, and the isolation opening 310 can be divided to form the aforementioned sub-light-emitting unit 230a, the first sub-opening 220a, and the second sub-opening 310a. Alternatively, the light-emitting unit 230, the pixel opening 220a, and the isolation opening 310 can be configured to correspond one-to-one with the first electrode 410 without being divided. This application does not limit this.

[0100] In some alternative embodiments, please refer to the above, such as Figures 1 to 4 , Figure 13 As shown, the material of the first sublayer 301 includes copper, and the first side surface 3011 is a plane or a smoothly transitioned curved surface. When the material of the first sublayer 301 includes copper, the first sublayer 301 can be formed in the same wet etching process step, so the first side surface 3011 is smoother, and the first side surface 3011 is a plane or a smoothly transitioned curved surface.

[0101] In some other alternative embodiments, such as Figures 1 to 4 , Figure 14 As shown, the material of the first sublayer 301 includes aluminum, and the first side surface 3011 includes a first sub-surface 3011a and a second sub-surface 3011b that are connected to each other in a direction away from the substrate 100, and the first sub-surface 3011a and the second sub-surface 3011b are arranged to intersect.

[0102] In these alternative embodiments, when the material of the first sublayer 301 includes aluminum, aluminum can be dry-etched or wet-etched, and the first sublayer 301 can be formed in two process steps to form the first sub-surface 3011a and the second sub-surface 3011b.

[0103] Optional, such as Figures 1 to 4 , Figure 13 As shown, the first sublayer 301 includes a first bottom surface 3012 facing the substrate 100a. When the material of the first sublayer 301 includes copper, there is a first included angle α1 between the first side surface 3011 and the first bottom surface 3012, which is 40°~85°. Optionally, the first bottom surface 3012 is parallel to the surface of the substrate 100, and the included angle between the extended surface of the first side surface 3011 and the surface of the substrate 100 is 40°~85°. The first included angle α1 is relatively large, which facilitates the formation of a larger space under the second sublayer 302, and is beneficial for the isolation structure to isolate the light-emitting unit.

[0104] In other embodiments, such as Figures 1 to 4 , Figure 14 As shown, when the material of the first sub-layer 301 includes aluminum, and the first side surface 3011 includes a first sub-surface 3011a and a second sub-surface 3011b, there is a second included angle α2 between the first sub-surface 3011a and the first bottom surface 3012, and there is a third included angle α3 between the extended surface of the second sub-surface 3011b and the extended surface of the first bottom surface 3012, wherein the second included angle α2 is smaller than the third included angle α3.

[0105] In these alternative embodiments, when the second included angle α2 is smaller than the third included angle α3, it is convenient to form a recess on the first side surface, and the third included angle α3 between the second sub-surface 3011b adjacent to the second sub-layer 302 and the first bottom surface 3012 is larger, which is convenient to form a larger concave space under the second sub-layer 302.

[0106] Optionally, the difference between the third included angle α3 and the second included angle α2 is 2° to 20°. This is to mitigate the impact of an excessively large or small difference between the third included angle α3 and the second included angle α2 on the forming of the first sub-surface 3011a and the second sub-surface 3011b.

[0107] The second sublayer 302 protrudes a first distance L relative to the first sublayer 301 toward the isolation opening 310. The plurality of light-emitting units 230 include a first light-emitting unit 231 and a second light-emitting unit 232 with different light-emitting colors. The isolation opening 310 includes a first isolation opening 311 for accommodating the first light-emitting unit 231 and a second isolation opening 312 for accommodating the second light-emitting unit 232. Optionally, the first distance L can be the minimum distance between the orthographic projection edge of the first sublayer 301 on the substrate 100 and the orthographic projection edge of the second sublayer 302 on the substrate 100.

[0108] When the material of the first sublayer 301 includes copper, such as Figures 1 to 4 , Figure 13As shown, the first distance L corresponding to the first isolation opening 311 and the first distance L corresponding to the second isolation opening 312 are equal. The first distance L corresponding to the first isolation opening 311 is the distance by which the second sub-layer 302 protrudes relative to the first sub-layer 301 toward the first isolation opening 311. Correspondingly, the first distance L corresponding to the second isolation opening 312 can be the distance by which the second sub-layer 302 protrudes relative to the first sub-layer 301 toward the second isolation opening 312.

[0109] In the process of fabricating the first light-emitting unit 231 using the isolation structure 300, the entire layer of material used to fabricate the first light-emitting unit 231 is first placed within the first isolation opening 311 and the second isolation opening 312, and then the material used to fabricate the first light-emitting unit 231 within the second isolation opening 312 is removed. In these optional embodiments, when the material of the first sub-layer 301 includes copper, due to the inherent properties of copper, the first sub-layer 301 is less affected when the material used to fabricate the first light-emitting unit 231 is removed from the second isolation opening 312. Therefore, the first distance L corresponding to the first isolation opening 311 and the first distance L corresponding to the second isolation opening 312 are equal within the process fabrication error range.

[0110] In some other alternative embodiments, such as Figures 1 to 4 , Figure 14 As shown, when the material of the first sub-layer 301 includes aluminum, the first distance L corresponding to the first isolation opening 311 and the first distance L corresponding to the second isolation opening 312 are different. When the material of the first sub-layer 301 includes aluminum, the first sub-layer 301 may be affected when removing the material used to prepare the first light-emitting unit 231 in the second isolation opening 312, so the first distance L corresponding to the first isolation opening 311 and the first distance L corresponding to the second isolation opening 312 are different.

[0111] When the material of the first sublayer 301 includes copper, such as Figures 1 to 4 , Figure 13 As shown, the first distance L ranges from 0.8 μm to 1.6 μm, for example, the first distance L is 0.8 μm, 0.9 μm, 1.3 μm, 1.5 μm, 1.6 μm, etc.; and / or, the first sublayer 301 has a first height h, and the ratio of the first distance L to the first height h ranges from 0.75 to 2. When the material of the first sublayer 301 includes copper, the first distance L is larger to ensure the segmentation effect of the isolation structure 300 on the light-emitting material.

[0112] Optionally, the material of the first sublayer 301 includes aluminum, such as... Figures 1 to 4 , Figure 14As shown, the first distance L ranges from 0.7 μm to 1.1 μm, for example, the first distance L is 0.7 μm, 0.75 μm, 0.8 μm, 1.0 μm, 1.1 μm, etc.; and / or, the first sublayer 301 has a first height h, and the ratio of the first distance L to the first height h ranges from 0.8 to 1.3. When the material of the first sublayer 301 includes aluminum, the value of the first distance L is slightly smaller, so as to avoid the first distance L being too large when the first sublayer 301 is etched during the subsequent fabrication of the light-emitting unit 230, which would affect the structural stability of the isolation structure 300.

[0113] In some alternative embodiments, such as Figures 1 to 4 , Figure 13 As shown, when the material of the first sublayer 301 includes copper, a plurality of spaced-apart covering portions 3013 are provided on the first side surface 3011 facing at least one isolation opening 310. The material of the covering portions 3013 includes copper oxide. When the material of the first sublayer 301 includes copper, copper oxide black spots will form when the first sublayer 301 is exposed to air, and the plurality of covering portions 3013 are spaced apart rather than distributed across the entire surface. When the second electrode 510 and the first side surface 3011 overlap, current can be transmitted between the second electrode 510 and the first side surface 3011.

[0114] Optionally, when the material of the first sublayer 301 includes copper, the light-emitting unit 230 and the first sublayer 301 are in contact connection. Alternatively, the isolation structure 300 may further include a third sublayer 303 located on the side of the first sublayer 301 facing the substrate 100a. The third sublayer 303 protrudes toward the isolation opening 310, the light-emitting unit 230 and the third sublayer 303 are in contact connection, and the light-emitting unit 230 and the first sublayer 301 are spaced apart.

[0115] In these optional embodiments, when the isolation structure 300 does not include the third sub-layer 303, the edge of the light-emitting unit 230 can contact the first sub-layer 301; when the isolation structure 300 includes the third sub-layer 303, the light-emitting unit 230 can contact the third sub-layer 303, and the light-emitting unit 230 and the first sub-layer 301 are spaced apart.

[0116] In some alternative embodiments, such as Figures 1 to 4 , Figures 13 to 15 As shown, when the display panel 10 includes the third sub-layer 303 and the second electrode 510 as described above, the second electrode 510 includes a main body portion 511 and a contact portion 512 that surrounds the main body portion 511 in a closed ring shape. The contact portion 512 and the third sub-layer 303 are in contact with each other.

[0117] In these optional embodiments, the contact portion 512 is in the shape of a closed ring, and the contact portions 512 located in different directions of the main body portion 511 are all in contact with and connected to the third sub-layer 303. For example, the orthographic projection of the contact portion 512 on the substrate 100 and the orthographic projection of the third sub-layer 303 on the substrate 100 at least partially overlap to form an overlapping area. The overlapping area surrounds the main body portion 511 in a closed ring shape, so that the edges of the second electrode 510 can be in contact with and connected to the third sub-layer 303. This can increase the overlap area between the second electrode 510 and the isolation structure 300, reduce the overlap resistance, and make the display panel 10 more suitable for large-screen display devices such as televisions.

[0118] In some alternative embodiments, such as Figure 3 As shown, along the same direction, the width of the orthographic projection of the pixel opening 220 onto the substrate 100a is the first width W1, and the distance between the orthographic projections of two adjacent isolation openings 310 onto the substrate 100a is the second width W2. The first width W1 is greater than the second width W2 and less than or equal to 124 times the width of the second width W2.

[0119] In these alternative embodiments, the width of the pixel aperture 220 is greater than the spacing between the orthographic projections of two adjacent isolation apertures 310 onto the substrate 100a, which can improve the aperture ratio of the display panel 10, making the display panel 10 suitable for large-screen display devices such as televisions.

[0120] Optionally, the light-emitting unit 230 includes a first light-emitting unit 231, a second light-emitting unit 232 and a third light-emitting unit 233, and the pixel opening 220 includes a first pixel opening 221 for accommodating the first light-emitting unit 231, a second pixel opening 222 for accommodating the second light-emitting unit 232 and a third pixel opening 223 for accommodating the third light-emitting unit 233.

[0121] Optionally, the second width W2 can be the distance between the orthographic projections of any two adjacent isolation openings 310 onto the substrate 100a. As described above, the isolation structure 300 includes a first sub-layer 301 and a second sub-layer 302, and the second width W2 can be the width of the first sub-layer 301 or the width of the second sub-layer 302 between any two adjacent isolation openings 310. When the isolation structure 300 includes the aforementioned third sub-layer 303, the second width W2 can also be the width of the third sub-layer 303 between any two adjacent isolation openings 310. Figure 4 As shown, in this embodiment of the application, the width of the second sub-layer 302 between any two adjacent isolation openings 310 is used as the second width W2. The second sub-layer 302 has a significant impact on the aperture ratio and resolution of the display panel 10. By using the width of the second sub-layer 302 as the second width W2 and reasonably setting the second width W2 and the third width W3, the display panel 10 can be made more suitable for large-size display devices.

[0122] Optionally, the orthographic projection of the pixel opening 220 onto the substrate 100a has a first width W1. The first width W1 can be the distance between the edge of the orthographic projection of the pixel opening 220 onto the substrate and the two intersection points of the straight line passing through the centroid of the orthographic projection of the pixel opening 220 onto the substrate 100a. Optionally, the pixel opening 220 is formed by the pixel defining portion 210 surrounding the side surface of the pixel opening 220, and the size of the pixel opening 220 gradually increases in the direction away from the substrate 100. The pixel defining portion 210 has a bottom surface facing the substrate 100 and a bottom surface facing away from the substrate 100. The orthographic projection of the pixel opening 220 onto the substrate 100a can be formed by the bottom edge of the pixel defining portion 210, or the orthographic projection of the pixel opening 220 onto the substrate 100a can be formed by the top edge of the pixel defining portion 210, or the orthographic projection of the pixel opening 220 onto the substrate 100a can be formed by any position of the pixel defining portion 210 surrounding the side surface of the pixel opening 220. This embodiment of the application uses the example of the orthographic projection of the pixel opening 220 onto the substrate 100a being enclosed by the bottom surface of the pixel limiting portion 210. The area enclosed by the bottom surface constitutes the contact area between the light-emitting unit 230 and the first electrode 410 within the pixel opening 220, i.e., the effective light-emitting area. By having the orthographic projection of the pixel opening 220 onto the substrate 100a enclosed by the bottom surface of the pixel limiting portion 210, the effective light-emitting area of ​​the pixel opening 220 can be better designed.

[0123] Optionally, the orthographic projection of the isolation opening 310 onto the substrate 100a has a third width W3, and the orthographic projection of the isolation opening 310 onto the substrate 100a can be formed by the first sublayer 301 or the second sublayer 302 surrounding the side surface of the isolation opening 310. For example, as Figure 3 As shown, the orthographic projection of the isolation opening 310 onto the substrate 100a is formed by the side surface of the second sublayer 302 facing the isolation opening 310. The third width W3 of the isolation opening 310 can be the width of the orthographic projection of the side surface of the second sublayer 302 facing the isolation opening 310 onto the substrate 100a. Optionally, the third width W3 can be the distance between the edge of the orthographic projection of the isolation opening 310 onto the substrate 100a and the two intersection points of the straight line passing through the centroid of the orthographic projection of the isolation opening 310 onto the substrate 100a.

[0124] The third width W3 is greater than or equal to twice the second width W2 and less than or equal to 125 times the second width W2. The minimum value of the third width W2 is greater than or equal to twice the maximum value of the second width W2, and the maximum value of the third width W2 is less than or equal to 125 times the maximum value of the second width W2.

[0125] Optional, such as Figure 3As shown, multiple first light-emitting units 231 are arranged at intervals along the second direction Y to form a first pixel column, multiple second light-emitting units 232 are arranged at intervals along the second direction Y to form a second pixel column, and multiple third light-emitting units 233 are arranged at intervals along the second direction Y to form a third pixel column. The first pixel column, second pixel column, and third pixel column are arranged alternately along the first direction X. Optionally, the extension dimensions of the first light-emitting unit 231, second light-emitting unit 232, and third light-emitting unit 233 in the first direction X are smaller than their extension dimensions in the second direction Y, and the extension dimension of the light-emitting unit 230 in the first direction X is the width of the first light-emitting unit 231. Correspondingly, the extension dimension of the pixel opening 220 in the first direction X is smaller than its extension dimension in the second direction Y, and the extension dimension of the pixel opening 220 in the first direction X is the width of the pixel opening 220.

[0126] Optionally, along the first direction X, the width of the orthographic projection of the pixel opening 220 onto the substrate 100a is the first width W1 mentioned above, and the distance between the orthographic projections of two adjacent isolation openings 310 onto the substrate 100a is the second width W2 mentioned above.

[0127] Optionally, the second width W2 is 3μm to 6μm, and the first width W1 is greater than 5 times the second width W2 and less than or equal to 124 times the second width W2; or, the second width W2 is 7μm to 10μm, and the first width W1 is greater than 2 times the second width W2 and less than or equal to 68 times the second width W2; or, the second width W2 is 11μm to 16μm, and the first width W1 is greater than the second width W2 and less than or equal to 47 times the second width W2.

[0128] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 5 micrometers, the setting methods for the width of each pixel opening 220 in the first direction X are shown in Table 1 for different display area sizes, different resolutions, and pixel densities.

[0129] Table 1

[0130]

[0131] In Table 1, the display area size is in inches; for example, display size 45 in the table indicates a display size of 45 inches. PPI stands for pixel density. W2 is the distance between the orthographic projections of two adjacent isolation openings 310 on the substrate 100a in the first direction X, in micrometers. W1_R can be the first width W1 of the first pixel opening 221 in the first direction X, W1_G can be the width of the second pixel opening 222 in the first direction X, and W1_B can be the width of the third pixel opening 223 in the first direction X. The first width W1 is also in micrometers.

[0132] As shown in Table 1 above, when the second width W2 is 5μm, the first width W1 is greater than 5 times the second width W2 and less than or equal to 124 times the second width W2. Specifically, the first width W1 of the first pixel opening 221 and the second pixel opening 222 is equal. When the second width W2 is 5μm, the first width W1 corresponding to the first pixel opening 221 and the second pixel opening 222 is greater than 5 times the second width W2 and less than or equal to 62 times the second width W2. The first width W1 of the third pixel opening 223 is relatively large. When the second width W2 is 5μm, the first width W1 corresponding to the third pixel opening 223 is greater than 10 times the second width W2 and less than or equal to 124 times the second width W2.

[0133] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 9 micrometers, the setting methods for the width of each pixel opening 220 in the first direction X are shown in Table 2 for different display area sizes, different resolutions, and pixel densities.

[0134] Table 2

[0135]

[0136] As shown in Table 2 above, when the second width W2 is 9μm, the first width W1 is greater than twice the second width W2 and less than or equal to 68 times the second width W2. Specifically, the first width W1 of the first pixel opening 221 and the second pixel opening 222 is equal. When the second width W2 is 9μm, the first width W1 corresponding to the first pixel opening 221 and the second pixel opening 222 is greater than 2.4 times the second width W2 and less than or equal to 34.2 times the second width W2. The first width W1 of the third pixel opening 223 is relatively large. When the second width W2 is 9μm, the first width W1 corresponding to the third pixel opening 223 is greater than 4.8 times the second width W2 and less than or equal to 68.2 times the second width W2.

[0137] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 13 micrometers, the setting methods for the width of each pixel opening 220 in the first direction X are shown in Table 3 for different display area sizes, different resolutions, and pixel densities.

[0138] Table 3

[0139]

[0140] As shown in Table 3 above, when the second width W2 is 13μm, the first width W1 is greater than the second width W2 but less than or equal to 47 times the second width W2. Specifically, the first width W1 of the first pixel opening 221 and the second pixel opening 222 is equal. When the second width W2 is 13μm, the first width W1 corresponding to the first pixel opening 221 and the second pixel opening 222 is greater than 1.4 times the second width W2 and less than or equal to 23.4 times the second width W2. The first width W1 of the third pixel opening 223 is relatively large. When the second width W2 is 13μm, the first width W1 corresponding to the third pixel opening 223 is greater than 2.9 times the second width W2 and less than or equal to 46.8 times the second width W2.

[0141] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 15 micrometers, the setting methods for the width of each pixel opening 220 in the first direction X are shown in Table 4 for different display area sizes, different resolutions, and pixel densities.

[0142] Table 4

[0143]

[0144] As shown in Table 4 above, when the second width W2 is 15μm, the first width W1 is greater than or equal to the second width W2 and less than or equal to 40 times the second width W2. Specifically, the first width W1 of the first pixel opening 221 and the second pixel opening 222 is equal. When the second width W2 is 15μm, the first width W1 corresponding to the first pixel opening 221 and the second pixel opening 222 is greater than or equal to the second width W2 and less than or equal to 20 times the second width W2. The first width W1 of the third pixel opening 223 is larger. When the second width W2 is 15μm, the first width W1 corresponding to the third pixel opening 223 is greater than twice the second width W2 and less than or equal to 40 times the second width W2. The multiples between the first width W1 and the second width W2 were rounded to the nearest integer.

[0145] In some alternative embodiments, alternatively, such as Figure 16 As shown, multiple first light-emitting units 231 and multiple second light-emitting units 232 are arranged alternately along the second direction Y to form a fourth pixel column, and multiple third light-emitting units 233 are arranged at intervals along the second direction Y to form a fifth pixel column. The fourth and fifth pixel columns are arranged alternately along the first direction X. Optionally, the extension dimension of the third light-emitting unit 233 in the first direction X is smaller than its extension dimension in the second direction Y. Correspondingly, the extension dimension of the third pixel opening 223 in the first direction X is smaller than its extension dimension in the second direction Y, and the width direction of the third pixel opening 223 can be either the first direction X or the second direction Y. For the first light-emitting unit 231 and the second light-emitting unit 232, the extension dimensions of the first light-emitting unit 231 and the second light-emitting unit 232 in the first direction X and their extension dimensions in the second direction Y may be different or the same. For example, the first light-emitting unit 231 and the second light-emitting unit 232 have the same extension size in the first direction X, the extension size of the first light-emitting unit 231 in the second direction Y is smaller than its extension size in the first direction X, and the dimensions of the second light-emitting unit 232 in the first direction X and the second direction Y can be the same, or the extension size of the second light-emitting unit 232 in the second direction Y is larger than its extension size in the first direction X.

[0146] Optionally, the comparison of the second width W2 and the first width W1 can be a comparison of them in the same direction.

[0147] When multiple light-emitting units 230 are Figure 16 When the fourth and fifth pixel columns are arranged as shown, the width of each pixel opening 220 in the first direction X is set for different display area AA sizes, different resolutions and pixel densities as shown in Table 5.

[0148] Table 5

[0149]

[0150] As shown in Table 5 above, when both the first width W1 and the second width W2 are taken from the first direction X, that is, the extension dimension of the orthographic projection of the pixel opening 220 onto the substrate 100a in the first direction X is the first width W1, and the distance between the orthographic projections of two adjacent isolation openings 310 along the first direction X onto the substrate 100a is the second width W2. Firstly, the value of the second width W2 varies for different display sizes and resolutions. When the display area size is 110 inches and the resolution is 2K, the second width is 15 micrometers, and the first width W1 is greater than or equal to 36.3 times the second width W2 and less than or equal to 45 times the second width W2. When the display area size is 45 inches and the resolution is 8K, the pixel density is higher, and the first width W1 is greater than or equal to 7.7 times the second width W2 and less than or equal to 11.3 times the second width W2.

[0151] When multiple light-emitting units 230 are Figure 7 When the fourth and fifth pixel columns are arranged as shown, the width of each pixel opening 220 in the second direction Y is set for different display area AA sizes, different resolutions and pixel densities as shown in Table 6.

[0152] Table 6

[0153]

[0154] As shown in Table 6 above, when both the first width W1 and the second width W2 are taken from the second direction Y, that is, the extension dimension of the orthographic projection of the pixel opening 220 onto the substrate 100a in the second direction Y is the first width W1, and the distance between the orthographic projections of two adjacent isolation openings 310 along the second direction Y onto the substrate 100a is the second width W2. Firstly, the value of the second width W2 varies for different display sizes and resolutions. When the display area size is 110 inches and the resolution is 2K, the second width is 15 micrometers, and the first width W1 is greater than or equal to 34.5 times the second width W2 and less than or equal to 125 times the second width W2. When the display area size is 45 inches and the resolution is 8K, the pixel density is higher, and the first width W1 is greater than or equal to 2.55 times the second width W2 and less than or equal to 11 times the second width W2.

[0155] like Figure 3 and Figure 16 As shown, multiple light-emitting units 230 are arranged in multiple columns along the first direction X and the second direction Y. The second width W2, the first width W1 of the pixel opening 220, and the third width W3 of the isolation opening 310 can take values ​​in the same direction. In some other optional embodiments, when multiple light-emitting units 230 are arranged in... Figure 3 and Figure 16When arranged as shown, the second width W2 of the isolation structure 300, the first width W1 of the pixel opening 220, and the third width W3 of the isolation opening 310 may not take values ​​in the same direction.

[0156] In some alternative embodiments, such as Figure 17 As shown, the first light-emitting unit 231 and the third light-emitting unit 233 are alternately arranged along the first direction X to form a first pixel row, and a plurality of second light-emitting units 232 are sequentially arranged along the first direction X to form a second pixel row, with the second light-emitting units 232 positioned between the first light-emitting unit 231 and the third light-emitting unit 233. The second width W2 can take a value in the first direction X or the second direction Y, or the second width W2 can take a value in any direction intersecting the first direction X. The second width W2 can be the spacing between any two adjacent isolation openings 310. For example, the second width W2 can be the minimum spacing between two adjacent isolation openings 310, or the second width W2 can be the maximum spacing between two adjacent isolation openings 310, or the second width W2 can be any value between the minimum spacing between two adjacent isolation openings 310 and the maximum spacing between two adjacent isolation openings 310.

[0157] Optional, such as Figure 3 , Figure 16 and Figure 17 As shown, this embodiment of the application uses the second width W2 as the maximum spacing between two adjacent isolation openings 310 for illustrative purposes. The maximum spacing between two adjacent isolation openings 310 has a significant impact on the aperture ratio and pixel density of the display panel 10. In this embodiment of the application, the second width W2 of the isolation structure 300 is designed as the maximum spacing between two adjacent isolation openings 310, so that the display panel 10 can be better adapted to large-size display devices.

[0158] Similarly, such as Figure 17 As shown, when the shapes of the isolation opening 310 and the pixel opening 220 are not regular rectangles, optionally, the width of the orthographic projection of the isolation opening 310 onto the substrate 100 in any direction can be used as the third width W3. For example, the minimum width of the orthographic projection of the isolation opening 310 onto the substrate 100 can be used as the third width W3, or the maximum width of the orthographic projection of the isolation opening 310 onto the substrate 100 can be used as the third width W3, or any value between the minimum and maximum width of the orthographic projection of the isolation opening 310 onto the substrate 100 can be used as the third width W3.

[0159] Optional, such as Figure 3 , Figure 16 and Figure 17As shown, this embodiment uses the minimum width of the orthographic projection of the isolation opening 310 onto the substrate 100 as the third width W3 for illustration. The minimum width of the orthographic projection of the isolation opening 310 onto the substrate 100 has a significant impact on the aperture ratio and pixel density of the display panel 10. This embodiment uses the minimum width of the orthographic projection of the isolation opening 310 onto the substrate 100 as the third width W3, enabling the display panel 10 to better adapt to large-size display devices. When the isolation opening 310 includes a first isolation opening 311, a second isolation opening 312, and a third isolation opening 313, the third width W3 can be the minimum width of the orthographic projection of any one of the first isolation opening 311, the second isolation opening 312, and the third isolation opening 313 onto the substrate 100.

[0160] like Figure 8 As shown, the orthographic projection of the pixel opening 220 onto the substrate 100 has a first width W1. Optionally, the width of the orthographic projection of the pixel opening 220 onto the substrate 100 in any direction can be used as the first width W1. For example, the minimum width of the orthographic projection of the pixel opening 220 onto the substrate 100 can be used as the first width W1, or the maximum width of the orthographic projection of the pixel opening 220 onto the substrate 100 can be used as the first width W1, or any value between the minimum and maximum width of the orthographic projection of the pixel opening 220 onto the substrate 100 can be used as the first width W1.

[0161] Optional, such as Figure 3 , Figure 16 and Figure 17 As shown, this embodiment uses the minimum width of the orthographic projection of the pixel opening 220 onto the substrate 100 as the first width W1 for illustration. Using the minimum width of the orthographic projection of the pixel opening 220 onto the substrate 100 as the first width W1 has a significant impact on the aperture ratio and pixel density of the display panel 10. This embodiment uses the minimum width of the orthographic projection of the pixel opening 220 onto the substrate 100 as the first width W1, enabling the display panel 10 to better adapt to large-size display devices. When the multiple pixel openings 220 include a first pixel opening 221, a second pixel opening 222, and a third pixel opening 223, the first width W1 can be the minimum width of any one of the first pixel opening 221, the second pixel opening 222, and the third pixel opening 223 projected onto the substrate 100.

[0162] Optionally, multiple isolation openings 310 are distributed at intervals along a first direction X and a second direction Y. The width 'a' of the isolation opening 310 in the first direction X ranges from 20 μm to 650 μm; and / or, the length 'b' of the isolation opening 310 in the second direction Y ranges from 100 μm to 1300 μm. In these optional embodiments, when the size of the isolation opening 310 is within the above range, the size of the isolation opening 310 is relatively large, making it suitable for large-screen display devices such as televisions.

[0163] Optionally, the width a of the isolation structure 300 in the first direction X can be the third width W3 mentioned above.

[0164] In some alternative embodiments, such as Figure 3 and Figure 16 As shown, along the same direction, the width of the isolation opening 310 projected onto the substrate 100a is the third width W3, and the width of the isolation structure 300 on the substrate 100a is the second width W2. The third width W3 is greater than twice the second width W2 and less than or equal to 125 times the second width W2. The method for setting the third width W3 is described above and will not be repeated here.

[0165] In these alternative embodiments, the width of the isolation opening 310 is greater than the width of the isolation structure 300, which can increase the aperture ratio of the display panel 10, making the display panel 10 suitable for large-screen display devices such as televisions.

[0166] Optional, such as Figure 3 As shown, along the first direction X, the width of the orthogonal projection of the isolation opening 310 onto the substrate 100a is the third width W3 mentioned above, and the width of the orthogonal projection of the isolation structure 300 onto the substrate 100a is the second width W2 mentioned above.

[0167] Optionally, the second width W2 is 3μm to 6μm, and the third width W3 is greater than 6 times the second width W2 and less than or equal to 125 times the second width W2; or, the second width W2 is 7μm to 10μm, and the third width W3 is greater than 3 times the second width W2 and less than or equal to 69 times the second width W2; or, the second width W2 is 11μm to 16μm, and the third width W3 is greater than 2 times the second width W2 and less than or equal to 47 times the second width W2.

[0168] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 5 micrometers, the setting methods of the width of each isolation opening 310 in the first direction X are shown in Table 7 for different display area sizes, different resolutions, and pixel densities:

[0169] Table 7

[0170]

[0171] In Table 7, the display area size is in inches; for example, 45 in the table indicates a 45-inch display area. PPI stands for pixel density. W2 is the second width W2 of the isolation structure 300 in the first direction X, in micrometers. W3_R can be the first width W1 of the first isolation opening 311 in the first direction X, W3_G can be the width of the second isolation opening 312 in the first direction X, and W3_B can be the width of the third isolation opening 313 in the first direction X. The third width W3 is also in micrometers.

[0172] As shown in Table 7 above, when the second width W2 is 5 μm, the third width W3 is greater than 6 times the second width W2 and less than or equal to 125 times the second width W2. Specifically, the third width W3 of the first isolation opening 311 and the second isolation opening 312 is equal. When the second width W2 is 5 μm, the third width W3 corresponding to the first isolation opening 311 and the second isolation opening 312 is greater than 6 times the second width W2 and less than or equal to 57.2 times the second width W2. The third width W3 of the third isolation opening 313 is larger. When the second width W2 is 5 μm, the third width W3 corresponding to the third isolation opening 313 is greater than 11 times the second width W2 and less than or equal to 125 times the second width W2.

[0173] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 9 micrometers, the setting methods for the width of each isolation opening 310 in the first direction X are shown in Table 8 for different display area sizes, different resolutions, and pixel densities.

[0174] Table 8

[0175]

[0176] As shown in Table 8 above, when the second width W2 is 9 μm, the third width W3 is greater than 3 times the second width W2 and less than or equal to 69 times the second width W2. Specifically, the third width W3 of the first isolation opening 311 and the second isolation opening 312 is equal. When the second width W2 is 7 μm, the third width W3 corresponding to the first isolation opening 311 and the second isolation opening 312 is greater than 3 times the second width W2 and less than or equal to 34.6 times the second width W2. The third width W3 of the third isolation opening 313 is relatively large. When the second width W2 is 9 μm, the third width W3 corresponding to the third isolation opening 313 is greater than 5.4 times the second width W2 and less than or equal to 68.7 times the second width W2.

[0177] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 13 micrometers, the settings of the width of each isolation opening 310 in the first direction X are shown in Table 9 for different display area sizes, different resolutions, and pixel densities.

[0178] Table 9

[0179]

[0180] As shown in Table 9 above, when the second width W2 is 13 μm, the third width W3 is greater than twice the second width W2 and less than or equal to 47 times the second width W2. Specifically, the third width W3 of the first isolation opening 311 and the second isolation opening 312 are equal. When the second width W2 is 13 μm, the third width W3 corresponding to the first isolation opening 311 and the second isolation opening 312 is greater than 1.8 times the second width W2 and less than or equal to 23.8 times the second width W2. The third width W3 of the third isolation opening 313 is larger. When the second width W2 is 13 μm, the third width W3 corresponding to the third isolation opening 313 is greater than 3.3 times the second width W2 and less than or equal to 47.2 times the second width W2.

[0181] When the first light-emitting unit 231 is a red light-emitting unit 230, the second light-emitting unit 232 is a green light-emitting unit 230, and the third light-emitting unit 233 is a blue light-emitting unit 230, and multiple light-emitting units 230 are arranged to form the aforementioned first pixel column, second pixel column, and third pixel column, and the second width W2 is 15 micrometers, the setting methods of the width of each isolation opening 310 in the first direction X are shown in Table 10 for different display area sizes, different resolutions, and pixel densities:

[0182] Table 10

[0183]

[0184] As shown in Table 10 above, when the second width W2 is 15 μm, the third width W3 is greater than twice the second width W2 and less than or equal to 41 times the second width W2. Specifically, the third width W3 of the first isolation opening 311 and the second isolation opening 312 are equal. When the second width W2 is 15 μm, the third width W3 corresponding to the first isolation opening 311 and the second isolation opening 312 is greater than twice the second width W2 and less than or equal to 21 times the second width W2. The third width W3 of the third isolation opening 313 is larger. When the second width W2 is 13 μm, the third width W3 corresponding to the third isolation opening 313 is greater than twice the second width W2 and less than or equal to 41 times the second width W2. Note that the multiples between the third width W3 and the second width W2 were rounded to the nearest integer.

[0185] In some alternative embodiments, alternatively, such as Figure 16 As shown, multiple first light-emitting units 231 and multiple second light-emitting units 232 are arranged alternately along the second direction Y to form a fourth pixel column, and multiple third light-emitting units 233 are arranged at intervals along the second direction Y to form a fifth pixel column. The fourth and fifth pixel columns are arranged alternately along the first direction X. Optionally, the extension dimension of the third light-emitting unit 233 in the first direction X is smaller than its extension dimension in the second direction Y. Correspondingly, the extension dimension of the third pixel opening 223 in the first direction X is smaller than its extension dimension in the second direction Y, and the width direction of the third pixel opening 223 can be either the first direction X or the second direction Y. For the first light-emitting unit 231 and the second light-emitting unit 232, the extension dimensions of the first light-emitting unit 231 and the second light-emitting unit 232 in the first direction X and their extension dimensions in the second direction Y may be different or the same. For example, the first light-emitting unit 231 and the second light-emitting unit 232 have the same extension size in the first direction X, the extension size of the first light-emitting unit 231 in the second direction Y is smaller than its extension size in the first direction X, and the dimensions of the second light-emitting unit 232 in the first direction X and the second direction Y can be the same, or the extension size of the second light-emitting unit 232 in the second direction Y is larger than its extension size in the first direction X.

[0186] Optionally, the comparison of the second width W2 and the third width W3 can be a comparison of them in the same direction. When multiple light-emitting units 230 are in... Figure 16 When the fourth and fifth pixel columns are arranged as shown, the width of each pixel opening 220 in the first direction X is set for different display area AA sizes, different resolutions and pixel densities as shown in Table 11:

[0187] Table 11

[0188]

[0189] As shown in Table 11 above, when both the third width W3 and the second width W2 are taken from the first direction X, that is, the extension dimension of the orthographic projection of the isolation opening 310 onto the substrate 100a in the first direction X is the third width W3, and the extension dimension of the orthographic projection of the isolation structure 300 onto the substrate 100a in the first direction X is the second width W2. Firstly, the value of the second width W2 varies for different display sizes and resolutions. When the display area size is 110 inches and the resolution is 2K, the second width is 15 micrometers, and the third width W3 is greater than or equal to 37 times the second width W2 and less than or equal to 45.7 times the second width W2. When the display area size is 45 inches and the resolution is 8K, the pixel density is higher, and the third width W2 is greater than or equal to 9.7 times the second width W2 and less than or equal to 13.3 times the second width W2.

[0190] When multiple light-emitting units 230 are Figure 16 When the fourth and fifth pixel columns are arranged as shown, the width of each pixel opening 220 in the second direction Y is set for different display area AA sizes, different resolutions and pixel densities as shown in Table 12:

[0191] Table 12

[0192]

[0193] As shown in Table 12 above, when both the third width W3 and the second width W2 are taken from the second direction Y, that is, the extension dimension of the orthographic projection of the isolation opening 310 onto the substrate 100a in the second direction Y is the third width W3, and the extension dimension of the orthographic projection of the isolation structure 300 onto the substrate 100a in the second direction Y is the second width W2. Firstly, the value of the second width W2 varies for different display sizes and resolutions. When the display area size is 110 inches and the resolution is 2K, the second width is 15 micrometers, and the third width W3 is greater than or equal to 23.7 times the second width W2 and less than or equal to 84 times the second width W2. When the display area size is 45 inches and the resolution is 8K, the pixel density is higher, and the isolation opening W3 is greater than or equal to 7.1 times the second width W2 and less than or equal to 24 times the second width W2.

[0194] In some alternative embodiments, such as Figures 18 to 20As shown, the light-emitting unit 230 includes a light-emitting material layer EML, and the multiple light-emitting units 230 include a first light-emitting unit 231 and a second light-emitting unit 232 with different light-emitting colors. The number of light-emitting material layers EML in the first light-emitting unit 231 is greater than the number of light-emitting material layers EML in the second light-emitting unit 232. The multiple driving units 110 include a first driving unit 110a for driving the first light-emitting unit 231 and a second driving unit 110b for driving the second light-emitting unit 232. The number of driving transistors T1 in the first driving unit 110a is less than the number of driving transistors T1 in the second driving unit 110b, or the channel width of the driving transistors T1 in the first driving unit 110a is less than the channel width of the driving transistors T1 in the second driving unit 110b.

[0195] In these optional embodiments, the number of light-emitting material layers (EMLs) in the first light-emitting unit 231 is greater than the number of light-emitting material layers (EMLs) in the second light-emitting unit 232, the luminous efficiency of the first light-emitting unit 231 is higher than the luminous efficiency of the second light-emitting unit 232, and the first light-emitting unit 231 requires less driving current at the same brightness. Therefore, the number of driving transistors T1 is less than the number of driving transistors T1 in the second driving unit 110b. Alternatively, the channel width of the driving transistors T1 in the first driving unit 110a is less than the channel width of the driving transistors T1 in the second driving unit 110b, which can reduce the power consumption of the display panel 10.

[0196] like Figure 19 As shown, the number of light-emitting material layers (EMLs) in the first light-emitting unit 231 can be 3, such as... Figure 20 As shown, the second light-emitting unit 232 has two light-emitting material layers (EMLs). When the light-emitting unit 230 includes two or more light-emitting material layers (EMLs), a charge generation layer (CGL) is disposed between the two light-emitting material layers (EMLs). Optionally, in the direction away from the substrate 100, a hole injection layer and a hole transport layer can be disposed between the first light-emitting material layer (EML) and the first electrode 410, and an electron transport layer and an electron injection layer can be disposed between the first light-emitting material layer (EML) and the charge generation layer (CGL). A hole injection layer and a hole transport layer can be disposed between the second light-emitting material layer (EML) and the charge generation layer (CGL), that is, a hole injection layer and a hole transport layer can be disposed between the light-emitting material layer (EML) and the charge generation layer (CGL) or the first electrode 410 located on its side facing the substrate 100. An electron transport layer and an electron injection layer can be disposed between the light-emitting material layer (EML) and the charge generation layer (CGL) or the second electrode 510 located on its side away from the substrate 100.

[0197] like Figure 4As shown, the display panel 10 further includes a second encapsulation layer 620 and a third encapsulation layer 630. The second encapsulation layer 620 covers the isolation structure 300 and the encapsulation portion 611, and the third encapsulation layer 630 covers the second encapsulation layer 620. Both the first encapsulation layer 610 and the third encapsulation layer 630 are inorganic materials, and the materials of the first encapsulation layer 610 and the third encapsulation layer 630 include at least one of silicon nitride (SiN), silicon oxide (SiO), and silicon oxynitride (SiON). The second encapsulation layer 620 is an organic insulating material, such as epoxy resin, acrylic resin, or other resin materials. The second encapsulation layer 620 and the third encapsulation layer 630 are continuously disposed at least on the entire display area AA, with a portion of them also disposed on the non-display area NA.

[0198] The display panel 10 may also include at least one film layer such as a touch layer, a polarizer, a color filter substrate 100, and a protective cover. This film layer may also be bonded to the display panel 10 via an adhesive layer such as OCA (Optical Clear Adhesive).

[0199] In some possible implementations, this application also provides a display device, which includes the display panel 10 described in this application. The display device may include a device with image processing capabilities, such as a mobile phone, desktop computer, laptop computer, tablet computer, in-vehicle display, wearable device, etc. Since this display device includes the display panel 10 described in this application, it possesses the beneficial effects of the aforementioned display panel 10, which will not be elaborated further here.

[0200] In some possible implementations, this application also provides a device including the display panel 10 described in this application. This device may include an image processing device, such as a television, desktop computer, laptop computer, tablet computer, automotive display, wearable device, etc. Since this device includes the display panel 10 described in this application, it possesses the beneficial effects of the aforementioned display panel 10, which will not be elaborated further here. Optionally, the display area size of the device is greater than or equal to 35 inches, and / or the pixel density of the device is less than or equal to 100 pixels per inch, enabling the device to achieve a large-size display.

[0201] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0202] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that, include: A substrate, including a substrate and a driving unit disposed on one side of the substrate; A planarization layer is located on the side of the driving unit opposite to the substrate and includes a first connecting hole; A first electrode layer is disposed on one side of the substrate and includes a plurality of first electrodes; A pixel definition layer is disposed on one side of the substrate. The pixel definition layer includes a pixel defining portion and a pixel opening formed by the pixel defining portion. The orthographic projection of the pixel opening on the substrate and the orthographic projection of the first electrode on the substrate at least partially overlap. An isolation structure is disposed on the side of the substrate where the pixel definition layer is located and encloses a plurality of isolation openings, wherein the isolation openings are connected to the pixel openings; A light-emitting functional layer includes light-emitting units located in the isolation opening, with at least a portion of the light-emitting units located in the pixel opening. The driving unit and the first electrode are electrically connected via the first through hole, and at least one driving unit includes two or more driving transistors. The driving transistors are electrically connected to the first electrode and are used to transmit driving current to the light-emitting unit to drive the light-emitting unit to emit light. The width of the pixel opening projected onto the substrate is a first width, and the distance between the projections of two adjacent isolation openings onto the substrate is a second width. The first width is greater than the second width and less than or equal to 124 times the second width.

2. The display panel according to claim 1, characterized in that, The driving unit includes a pixel driving circuit, and the pixel driving circuit includes two or more driving transistors, with the two or more driving transistors of the pixel driving circuit connected to the same first electrode connected in parallel.

3. The display panel according to claim 2, characterized in that, Two or more driving transistors connected to the same first electrode are electrically connected to the first electrode via the same first through-hole.

4. The display panel according to claim 1, characterized in that, The driving unit includes two or more pixel driving circuits, each pixel driving circuit includes one driving transistor, and the driving transistors of the two or more pixel driving circuits are connected to the same first electrode.

5. The display panel according to claim 4, characterized in that, The driving transistors of two or more pixel driving circuits are connected to the same first electrode via the same first through-hole; Alternatively, the first electrode may be provided with two or more first connecting holes, and the orthographic projections of the two or more first connecting holes corresponding to the same first electrode on the substrate are distributed at intervals around the orthographic projection of the first electrode on the substrate. Two or more pixel driving circuits connected to the same first electrode and the first connecting holes are provided in a one-to-one correspondence.

6. The display panel according to claim 1, characterized in that, The first electrode includes two or more sub-electrodes, the driving unit includes two or more pixel driving circuits, each pixel driving circuit includes one driving transistor, the sub-electrodes and the pixel driving circuits are arranged in a one-to-one correspondence, each sub-electrode is provided with a first connecting hole, and the driving transistor of each pixel driving circuit is electrically connected to the sub-electrode through the first connecting hole.

7. The display panel according to claim 6, characterized in that, The first electrode includes two sub-electrodes, the two sub-electrodes of the same first electrode are spaced apart along a second direction, and the two first connecting holes corresponding to the two sub-electrodes of the same first electrode are located on the side opposite to each other in the second direction.

8. The display panel according to claim 6, characterized in that, The substrate further includes a first signal line extending along a first direction and a second signal line extending along a second direction, and a plurality of pixel driving circuits connected to a plurality of sub-electrodes of the same first electrode are connected to the same first signal line and the same second signal line; The first signal line includes at least one of a scan signal line and a light emission control signal line, and the second signal line includes a data signal line.

9. The display panel according to claim 6, characterized in that, The light-emitting unit includes two or more sub-light-emitting units, and the sub-light-emitting units and the sub-electrodes are arranged in a one-to-one correspondence. The pixel opening includes two or more first sub-openings, and at least a portion of the sub-light-emitting units is located in the first sub-opening. The isolation opening includes two or more second sub-openings, and each sub-light-emitting unit is located in each second sub-opening. Alternatively, the pixel opening may include two or more first sub-openings, with each first sub-opening and the sub-electrode corresponding to one another. The two or more first sub-openings may correspond to the same isolation opening, and at least a portion of the light-emitting unit within the same isolation opening may be located in two or more first sub-openings.

10. The display panel according to claim 1, characterized in that, The isolation structure includes a first sublayer and a second sublayer stacked in a direction away from the substrate, the second sublayer protruding relative to the first sublayer toward the isolation opening, and the first sublayer including a first side surface toward the isolation opening. The material of the first sub-layer includes copper, and the first side surface is a plane or a smoothly transitioned curved surface; Alternatively, the material of the first sublayer includes aluminum, and the first side surface includes a first sub-face and a second sub-face that are interconnected in a direction away from the substrate, the first sub-face and the second sub-face being intersected.

11. The display panel according to claim 10, characterized in that, The first sublayer includes a first bottom surface facing the substrate, the material of the first sublayer includes copper, and there is a first included angle between the first side surface and the first bottom surface, the first included angle being 40° to 85°.

12. The display panel according to claim 10, characterized in that, The material of the first sublayer includes aluminum, the first side surface includes a first sub-face and a second sub-face disposed successively in a direction away from the substrate, the first sublayer includes a first bottom surface facing the substrate, a second included angle is formed between the first sub-face and the first bottom surface, and a third included angle is formed between the extended surface of the second sub-face and the extended surface of the first bottom surface, the second included angle being smaller than the third included angle.

13. The display panel according to claim 12, characterized in that, The difference between the third included angle and the second included angle is 2° to 20°.

14. The display panel according to claim 10, characterized in that, The second sub-layer protrudes a first distance from the first sub-layer toward the isolation opening. The plurality of light-emitting units include first and second light-emitting units with different emitting colors. The isolation opening includes a first isolation opening for accommodating the first light-emitting unit and a second isolation opening for accommodating the second light-emitting unit. The material of the first sublayer includes copper, and the first distance corresponding to the first isolation opening and the first distance L corresponding to the second isolation opening are equal; Alternatively, the material of the first sublayer may include aluminum, and the first distance corresponding to the first isolation opening and the first distance L corresponding to the second isolation opening may be different.

15. The display panel according to claim 14, characterized in that, The material of the first sublayer includes copper, and the value of the first distance L ranges from 0.8 μm to 1.6 μm; and / or, the first sublayer has a first height h, and the ratio of the first distance L to the first height h ranges from 0.75 to 2.

16. The display panel according to claim 15, characterized in that, The material of the first sublayer includes aluminum, and the first distance ranges from 0.7 μm to 1.1 μm; and / or, the first sublayer has a first height h, and the ratio of the first distance L to the first height h ranges from 0.8 to 1.

3.

17. The display panel according to claim 10, characterized in that, The first sublayer is made of copper, and a plurality of spaced-apart covers are provided on the first side surface facing at least one of the isolation openings, the covers being made of copper oxide.

18. The display panel according to claim 10, characterized in that, The material of the first sublayer includes copper. The light-emitting unit and the first sub-layer are in contact connection; Alternatively, the isolation structure may further include a third sublayer located on the side of the first sublayer facing the substrate, the third sublayer protruding toward the isolation opening, the light-emitting unit being in contact with the third sublayer, and the light-emitting unit being spaced apart from the first sublayer.

19. The display panel according to claim 10, characterized in that, The isolation structure further includes a third sub-layer, which is located on the side of the first sub-layer facing the substrate, and the third sub-layer protrudes relative to the first sub-layer facing the substrate. The display panel further includes a second electrode located on the side of the light-emitting unit away from the substrate. The second electrode includes a main body and a contact portion forming a closed ring around the main body. The contact portion and the third sub-layer are in contact with each other.

20. The display panel according to claim 1, characterized in that, The second width is 3μm to 6μm, and the first width is greater than 5 times the second width and less than or equal to 124 times the second width; Alternatively, the second width is 7μm to 12μm, and the first width is greater than twice the second width and less than or equal to 68 times the second width; Alternatively, the second width is 11μm to 15μm, and the first width is greater than the second width and less than or equal to 47 times the second width.

21. The display panel according to claim 1, characterized in that, Along the same direction, the width of the isolation opening projected onto the substrate is a third width, the distance between two adjacent isolation openings projected onto the substrate is a second width, and the third width is greater than twice the second width and less than or equal to 125 times the second width.

22. The display panel according to claim 21, characterized in that, The second width is 3μm to 6μm, and the third width is greater than 6 times the second width and less than or equal to 125 times the second width; Alternatively, the second width is 7μm to 12m, and the third width is greater than 3 times the second width and less than or equal to 69 times the second width; Alternatively, the second width is 11μm to 14μm, and the third width is greater than twice the second width and less than or equal to 47 times the second width; Alternatively, the second width is 14μm to 16μm, and the third width is greater than or equal to twice the second width and less than or equal to 47 times the second width.

23. The display panel according to claim 1, characterized in that, The plurality of isolation openings are distributed at intervals along a first direction and a second direction, the width a of the isolation structure in the first direction is in the range of 20μm to 650μm; and / or the length b of the isolation opening in the second direction is in the range of 100μm to 1300μm.

24. The display panel according to claim 1, characterized in that, The light-emitting unit includes a light-emitting material layer, and the multiple light-emitting units include a first light-emitting unit and a second light-emitting unit with different light-emitting colors. The number of light-emitting material layers in the first light-emitting unit is greater than the number of light-emitting material layers in the second light-emitting unit. The plurality of driving units include a first driving unit for driving the first light-emitting unit and a second driving unit for driving the second light-emitting unit. The number of driving transistors in the first driving unit is less than the number of driving transistors in the second driving unit, or the channel width of the driving transistors in the first driving unit is less than the channel width of the driving transistors in the second driving unit.

25. A display device, characterized in that, Includes the display panel as described in any one of claims 1-24.

26. A device, characterized in that, Includes the display panel as described in any one of claims 1-24.

27. The device according to claim 26, characterized in that, The device has a display area size greater than or equal to 35 inches, and / or the device has a pixel density less than or equal to 100 pixels per inch.

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