Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate; the array composite layer is located on one side of the substrate, the array composite layer comprises a plurality of driving circuits and a plurality of electrode pairs, each electrode pair comprises a first electrode and a second electrode, and the electrode pairs are electrically connected with the corresponding driving circuits; the light-emitting units are located on the side, away from the substrate, of the array composite layer, and the light-emitting units are electrically connected with the corresponding electrode pairs; the orthographic projection of the electrode pair on the substrate is at least partially overlapped with the orthographic projection of the corresponding light-emitting unit on the substrate; the driving circuit comprises at least one thin film transistor, the thin film transistor comprises an active part, and the orthographic projection of the active part on the substrate and the orthographic projection of the corresponding electrode pair on the substrate are arranged at intervals. The reliability of the display panel can be improved.

Description

Technical Field

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

[0002] With the continuous development of display technology, micro-component display panels, including Mini Light-Emitting Diode (Mini LED) display panels and Micro Light-Emitting Diode (MicroLED) display panels, will be widely used in various fields such as flat panel displays, flexible displays, automotive displays, and solid-state lighting. As display technology advances and application scenarios expand, users and the market have increasingly rich requirements for the functions of display devices.

[0003] However, there are issues with the reliability of related technologies due to manufacturing processes. Summary of the Invention

[0004] Therefore, it is necessary to provide a display panel and display device to solve the problem of decreased reliability caused by manufacturing processes in related technologies.

[0005] In a first aspect, embodiments of this application provide a display panel, including:

[0006] Base;

[0007] An array composite layer is located on one side of the substrate. The array composite layer includes multiple driving circuits and multiple electrode pairs. Each electrode pair includes a first electrode and a second electrode. The electrode pairs are electrically connected to the corresponding driving circuits.

[0008] Multiple light-emitting units are located on the side of the array composite layer away from the substrate, and the light-emitting units are electrically connected to the corresponding electrode pairs;

[0009] Wherein, the orthographic projection of the electrode pair on the substrate at least partially overlaps with the orthographic projection of the corresponding light-emitting unit on the substrate;

[0010] The driving circuit includes at least one thin-film transistor, the thin-film transistor includes an active portion, and the orthographic projection of the active portion on the substrate is spaced apart from the orthographic projection of the corresponding electrode pair on the substrate.

[0011] Secondly, based on the same application concept, embodiments of this application also provide a display device, which includes any of the display panels provided in the first aspect.

[0012] In this embodiment, the display panel includes: a substrate; an array composite layer located on one side of the substrate, the array composite layer including multiple driving circuits and multiple electrode pairs, each electrode pair including a first electrode and a second electrode, the electrode pairs being electrically connected to corresponding driving circuits; multiple light-emitting units located on the side of the array composite layer away from the substrate, the light-emitting units being electrically connected to corresponding electrode pairs; wherein the orthographic projection of the electrode pairs on the substrate at least partially overlaps with the orthographic projection of the corresponding light-emitting units on the substrate; the driving circuit includes at least one thin-film transistor, the thin-film transistor including an active portion, the orthographic projection of the active portion on the substrate being spaced apart from the orthographic projection of the corresponding electrode pairs on the substrate. During the manufacturing process of a display panel, the bonding of the light-emitting unit to the first and second electrodes in the array composite layer requires irradiation with lasers or X-rays to electrically connect the light-emitting unit to the first and second electrodes. Alternatively, X-rays may be generated when some metal films (such as the first and second electrodes) or bonding layers in the array composite layer are prepared by electron beam evaporation. By setting the orthogonal projection of the active part on the substrate and the orthogonal projection of the corresponding electrode pair on the substrate at intervals, lasers or X-rays will not irradiate the active part, thus preventing damage to the Si-O bonds or Si-Si bonds in the active part and avoiding performance degradation of the driving circuit. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the cross-sectional structure of a first type of display panel provided in an embodiment of this application.

[0015] Figure 2 A schematic diagram showing the distribution of the first and second sub-areas of the first type of display panel provided in the embodiments of this application.

[0016] Figure 3 This is a schematic diagram of the electrical connection driving circuit of the light-emitting unit of the first type of display panel provided in the embodiments of this application.

[0017] Figure 4 A schematic diagram of the cross-sectional structure of a second type of display panel provided in an embodiment of this application.

[0018] Figure 5 A schematic diagram showing the distribution of the first and second sub-areas of the second type of display panel provided in the embodiments of this application.

[0019] Figure 6This is a schematic diagram of the electrical connection driving circuit of the light-emitting unit of the second type of display panel provided in the embodiments of this application.

[0020] Figure 7 This is a schematic diagram of the electrical connection driving circuit of another light-emitting unit of a second type of display panel provided in an embodiment of this application.

[0021] Figure 8 This is a schematic diagram of a display device provided in an embodiment of this application.

[0022] Explanation of reference numerals in the drawings: Display device 200; Display panel 100; Substrate 11; Array composite layer 13; Light-emitting unit 20; Driving circuit 131; Electrode pair 132; First electrode 1321; Second electrode 1322; Thin film transistor 131t; First connecting electrode 1301; Second connecting electrode 1302; First driving circuit 1311; Second driving circuit 1312; First sub-area column AA1L; Third driving circuit 1313; Fourth driving circuit 1314; Second electrode column 1322L; Bonding layer 30; First light-emitting unit 21; Second light-emitting unit 22;

[0023] Display area AA; First sub-area AA1; Second sub-area AA2; Pad terminal B1; First direction X; Second direction Y; First dashed line 101; Second sub-area column AA2L; First electrode column 1321L. Detailed Implementation

[0024] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0027] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0028] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0029] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0030] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0031] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0032] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the implementation methods provided in the embodiments of this application can be combined with each other without contradiction.

[0033] The related technologies suffer from reliability degradation due to manufacturing processes. In these technologies, an array composite layer is first fabricated on a substrate, and then pixels are fabricated / bonded on the side of the array composite layer away from the substrate. The array composite layer may include structures such as driving circuits, which include thin-film transistors (TFTs) and / or driving traces. The pixels can be light-emitting units (light-emitting diodes), with the active portion of the TFT located between the pixel and the substrate. This related technology leads to some manufacturing process or performance deficiencies. For example, bonding the pixel to the first and second electrodes in the array composite layer requires irradiation with lasers or X-rays to electrically connect the pixel to the first and second electrodes. Alternatively, X-rays are generated when some metal films (e.g., the first and second electrodes) or bonding layers in the array composite layer are prepared using electron beam evaporation. X-rays have strong penetrating power, and irradiation with lasers or X-rays can damage Si-O or Si-Si bonds in the active portion, resulting in a degradation of the driving circuit performance.

[0034] Based on the aforementioned technical problems, the inventors have discovered that a display panel includes: a substrate; an array composite layer located on one side of the substrate, the array composite layer including multiple driving circuits and multiple electrode pairs, each electrode pair including a first electrode and a second electrode, the electrode pairs being electrically connected to corresponding driving circuits; multiple light-emitting units located on the side of the array composite layer away from the substrate, the light-emitting units being electrically connected to corresponding electrode pairs; wherein the orthographic projection of the electrode pairs on the substrate at least partially overlaps with the orthographic projection of the corresponding light-emitting units on the substrate; the driving circuit includes at least one thin-film transistor, the thin-film transistor including an active portion, the orthographic projection of the active portion on the substrate being spaced apart from the orthographic projection of the corresponding electrode pairs on the substrate. During the manufacturing process of a display panel, the bonding of the light-emitting unit to the first and second electrodes in the array composite layer requires irradiation with lasers or X-rays to electrically connect the light-emitting unit to the first and second electrodes. Alternatively, X-rays may be generated when some metal films (such as the first and second electrodes) or bonding layers in the array composite layer are prepared by electron beam evaporation. By setting the orthogonal projection of the active part on the substrate and the orthogonal projection of the corresponding electrode pair on the substrate at intervals, lasers or X-rays will not irradiate the active part, thus preventing damage to the Si-O bonds or Si-Si bonds in the active part and avoiding performance degradation of the driving circuit.

[0035] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] Please see Figures 1 to 7. Figure 1 A schematic diagram of the cross-sectional structure of a first type of display panel provided in an embodiment of this application. Figure 2 A schematic diagram showing the distribution of the first and second sub-areas of the first type of display panel provided in the embodiments of this application. Figure 3 This is a schematic diagram of the electrical connection driving circuit of the light-emitting unit of the first type of display panel provided in the embodiments of this application. Figure 4 A schematic diagram of the cross-sectional structure of a second type of display panel provided in an embodiment of this application. Figure 5 A schematic diagram showing the distribution of the first and second sub-areas of the second type of display panel provided in the embodiments of this application. Figure 6 This is a schematic diagram of the electrical connection driving circuit of the light-emitting unit of the second type of display panel provided in the embodiments of this application. Figure 7 This is a schematic diagram of the electrical connection driving circuit of another light-emitting unit of a second type of display panel provided in an embodiment of this application.

[0037] This application provides a display panel 100, which includes a substrate 11, an array composite layer 13, and a plurality of light-emitting units 20. The array composite layer 13 is located on one side of the substrate 11 and includes a plurality of driving circuits 131 and a plurality of electrode pairs 132. The electrode pairs 132 include a first electrode 1321 and a second electrode 1322, and the electrode pairs 132 are electrically connected to the corresponding driving circuits 131. The plurality of light-emitting units 20 are located on the side of the array composite layer 13 away from the substrate 11, and the light-emitting units 20 are electrically connected to the corresponding electrode pairs 132. The orthographic projection of the electrode pairs 132 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding light-emitting units 20 on the substrate 11. The driving circuit 131 includes at least one thin-film transistor, and the thin-film transistor includes an active portion. The orthographic projection of the active portion on the substrate 11 is spaced apart from the orthographic projection of the corresponding electrode pairs 132 on the substrate 11.

[0038] For example, the substrate 11 can be either a glass substrate or a flexible substrate, and the material of the substrate 11 is not limited here.

[0039] For example, the driving circuit 131 can be a pixel driving circuit, which can drive the corresponding light-emitting unit 20 to emit light.

[0040] For example, one of the first electrode 1321 and the second electrode 1322 is a pixel electrode and the other is a common electrode. In this embodiment of the application, the first electrode 1321 is a pixel electrode and the second electrode 1322 is a common electrode.

[0041] For example, one of the first electrode 1321 and the second electrode 1322 is an anode and the other is a cathode.

[0042] For example, the light-emitting unit 20 is electrically connected to the corresponding electrode pair 132, such as Figure 1 As shown, the light-emitting unit 20 includes a light-emitting unit body, a first sub-electrode and a second sub-electrode (not shown in the figure). The first sub-electrode is electrically connected to the first electrode 1321, and the second sub-electrode is electrically connected to the second electrode 1322.

[0043] For example, the orthographic projection of the electrode pair 132 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding light-emitting unit 20 on the substrate 11; in a direction perpendicular to the plane of the substrate 11, the light-emitting unit 20 is located on the side of the corresponding electrode pair 132 away from the substrate 11.

[0044] For example, the driving circuit 131 includes at least one thin-film transistor 131t, which includes an active portion. The thin-film transistor 131t may include a source, a drain, a gate, a gate insulating layer, and the active portion. The material of the active portion can be any of amorphous silicon, polycrystalline silicon, oxide semiconductor, etc., and is not limited herein.

[0045] For example, the light-emitting unit 20 can be a mini light-emitting diode (Mini LED) or a micro light-emitting diode (MicroLED), and the light-emitting unit 20 can be an organic light-emitting diode (OLED), but is not limited thereto.

[0046] In this embodiment, the display panel 100 includes: a substrate 11; an array composite layer 13 located on one side of the substrate 11, the array composite layer 13 including a plurality of driving circuits 131 and a plurality of electrode pairs 132, the electrode pairs 132 including a first electrode 1321 and a second electrode 1322, the electrode pairs 132 being electrically connected to the corresponding driving circuits 131; a plurality of light-emitting units 20 located on the side of the array composite layer 13 away from the substrate 11, the light-emitting units 20 being electrically connected to the corresponding electrode pairs 132; wherein, the orthographic projection of the electrode pairs 132 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding light-emitting units 20 on the substrate 11; the driving circuit 131 includes at least one thin-film transistor 131t, the thin-film transistor 131t including an active portion, the orthographic projection of the active portion on the substrate 11 being spaced apart from the orthographic projection of the corresponding electrode pairs 132 on the substrate 11. During the manufacturing process of the display panel 100, when the light-emitting unit 20 is bonded to the first electrode 1321 and the second electrode 1322 in the array composite layer 13, it needs to be irradiated by laser or X-rays so that the bonding layer can electrically connect the light-emitting unit 20 to the first electrode 1321 and the second electrode 1322. Alternatively, when some metal films (such as the first electrode 1321 and the second electrode 1322) or bonding layers in the array composite layer 13 are prepared by electron beam evaporation, X-rays are generated. By setting the orthogonal projection of the active part on the substrate 11 and the orthogonal projection of the corresponding electrode pair 132 on the substrate 11 to be spaced apart, laser or X-rays will not irradiate the active part, so as not to damage the Si-O bond or Si-Si bond in the active part, thereby avoiding the performance degradation of the driving circuit 131.

[0047] In some implementations, such as Figures 1 to 3 As shown, or as Figures 4 to 6 , or as Figure 4 / Figure 5 / Figure 7 As shown, the display panel 100 includes a display area AA, which includes multiple first sub-areas AA1 and multiple second sub-areas AA2; the driving circuit 131 is located in the corresponding first sub-area AA1, and the electrode pair 132 is located in the corresponding second sub-area AA2, with the first sub-area AA1 and the second sub-area AA2 spaced apart; the array composite layer 13 also includes multiple first connecting electrodes 1301 and multiple second connecting electrodes 1302, the first connecting electrodes 1301 being electrically connected to the first electrode 1321 and the corresponding driving circuit 131; the second connecting electrodes 1302 being electrically connected to at least two partially adjacent second electrodes 1322.

[0048] For example, the display panel 100 may include a display area AA and a non-display area (border area), with the non-display area at least partially surrounding the display area AA.

[0049] For example, the driving circuit 131 is located in the corresponding first sub-region AA1, and the electrode pair 132 is located in the corresponding second sub-region AA2. The first sub-region AA1 and the second sub-region AA2 are spaced apart, so that the orthographic projection of the active part on the substrate 11 and the orthographic projection of the corresponding electrode pair 132 on the substrate 11 are spaced apart.

[0050] For example, the driving circuit 131 is located in the corresponding first sub-region AA1, and the electrode pair 132 is located in the corresponding second sub-region AA2, with the first sub-region AA1 and the second sub-region AA2 spaced apart; this is particularly suitable for cases where the driving circuit 131 includes multiple thin-film transistors 131t.

[0051] For example, the first connection electrode 1301 is electrically connected to the first electrode 1321 and the corresponding driving circuit 131. The first electrode 1321 is a pixel electrode, and the first electrode 1321 is controlled by the corresponding driving circuit 131 to control the electrical signal independently.

[0052] For example, the second connection electrode 1302 is electrically connected to at least two partially adjacent second electrodes 1322. The second electrodes 1322 are common electrodes, and at least a portion of the second electrodes 1322 provide electrical signals through the same second connection electrode 1302.

[0053] For example, multiple second connection electrodes 1302 can provide electrical signals through the same pad terminal B1.

[0054] For example, the arrangement of the first connecting electrode 1301 and the second connecting electrode 1302 can make the first sub-region AA1 and the second sub-region AA2 alternately arranged.

[0055] In some implementations, such as Figures 1 to 3 As shown, at least two driving circuits 131 are located in the same first sub-region AA1, and the at least two driving circuits 131 located in the same first sub-region AA1 include a first driving circuit 1311 and a second driving circuit 1312; in the same first sub-region AA1, in a direction parallel to the plane where the substrate 11 is located, the two electrode pairs 132 electrically connected by the first driving circuit 1311 and the second driving circuit 1312 are located on different sides of the first sub-region AA1 respectively.

[0056] For example, such as Figures 1 to 3 As shown, at least two driving circuits 131 are located in the same first sub-region AA1. The two electrode pairs 132 electrically connected by the first driving circuit 1311 and the second driving circuit 1312 are located on different sides of the first sub-region AA1, respectively. The light-emitting units 20 located on different sides of the first sub-region AA1 can be controlled to emit light by the at least two driving circuits 131 located in the same first sub-region AA1.

[0057] For example, such as Figures 1 to 3As shown, at least two drive circuits 131 are located in the same first sub-region AA1, which facilitates the centralized manufacturing of at least two drive circuits 131 located in the same first sub-region AA1, thereby improving manufacturing yield and design convenience.

[0058] In some implementations, such as Figures 1 to 3 As shown, multiple first sub-regions AA1 are arrayed into multiple first sub-region columns AA1L spaced apart in the first direction X. Each first sub-region column AA1L includes at least two first sub-regions AA1. The first direction X is parallel to the plane where the substrate 11 is located. In the same first sub-region AA1, in the direction parallel to the plane where the substrate 11 is located, the two electrode pairs 132 electrically connected by the first driving circuit 1311 and the second driving circuit 1312 are located on opposite sides of the corresponding first sub-region column AA1L.

[0059] For example, such as Figures 1 to 3 As shown, multiple first sub-region columns AA1L are spaced apart in the first direction X, and each first sub-region column AA1L includes at least two first sub-regions AA1 sequentially arranged in the second direction Y. The first direction X intersects the second direction Y, and the first direction X and the second direction Y can be perpendicular to each other.

[0060] For example, such as Figures 1 to 3 As shown, in the same first sub-region AA1, in a direction parallel to the plane of the substrate 11, the two electrode pairs 132 electrically connected by the first driving circuit 1311 and the second driving circuit 1312 are located on opposite sides of the corresponding first sub-region column AA1L. For example, in the same first sub-region AA1, the first driving circuit 1311 is electrically connected to the first light-emitting unit 21, and the second driving circuit 1312 is electrically connected to the second light-emitting unit 22. The first light-emitting unit 21 and the second light-emitting unit 22 are located on opposite sides of the corresponding first sub-region column AA1L. Figures 1 to 3 As illustrated, the first light-emitting unit 21 and the second light-emitting unit 22 are located on the left and right sides of the corresponding first sub-region column AA1L, respectively (e.g., Figure 3 As shown to the left or right of the first dashed line 101 in the middle.

[0061] For example, such as Figures 1 to 3 As shown, in the same first sub-region AA1, in a direction parallel to the plane of the substrate 11, the two electrode pairs 132 electrically connected by the first driving circuit 1311 and the second driving circuit 1312 are located on opposite sides of the corresponding first sub-region column AA1L. This facilitates the array arrangement of the first sub-region AA1 and the second sub-region AA2, and also makes the light-emitting unit 20 and the driving circuit 131 as evenly arranged as possible, so that the image is displayed as evenly as possible.

[0062] For example, such as Figures 1 to 3As shown, at least one electrode pair 132 is located in a second sub-region AA2, and a plurality of second sub-regions AA2 are arrayed to form a plurality of second sub-region columns AA2L spaced apart in the first direction X. The second sub-region columns AA2L include at least two second sub-regions AA2 arranged in the second direction Y. At least two second sub-region columns AA2L electrically connected to the driving circuit 131 in the same first sub-region column AA1L are located on opposite sides (or different sides) of the corresponding first sub-region column AA1L.

[0063] In some implementations, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7 As shown, at least two driving circuits 131 are located in the same first sub-region AA1, and the at least two driving circuits 131 located in the same first sub-region AA1 include a third driving circuit 1313 and a fourth driving circuit 1314; in the direction parallel to the plane where the substrate 11 is located, the two electrode pairs 132 electrically connected by the third driving circuit 1313 and the fourth driving circuit 1314 are respectively located on the same side of the first sub-region AA1.

[0064] For example, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7 As shown, at least two driving circuits 131 are located in the same first sub-region AA1. The two electrode pairs 132 of the third driving circuit 1313 and the fourth driving circuit 1314 are electrically connected and are located on the same side of the first sub-region AA1. The light-emitting unit 20 located on the same side of the first sub-region AA1 can be controlled to emit light by the at least two driving circuits 131 located in the same first sub-region AA1.

[0065] For example, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7 As shown, at least two drive circuits 131 are located in the same first sub-region AA1, which facilitates the centralized manufacturing of at least two drive circuits 131 located in the same first sub-region AA1, thereby improving manufacturing yield and design convenience.

[0066] In some implementations, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7As shown, multiple first sub-regions AA1 are arrayed into multiple first sub-region columns AA1L spaced apart in the first direction X. Each first sub-region column AA1L includes at least two first sub-regions AA1. The first direction X is parallel to the plane where the substrate 11 is located. In the same first sub-region AA1, in the direction parallel to the plane where the substrate 11 is located, the two electrode pairs 132 electrically connected by the third driving circuit 1313 and the fourth driving circuit 1314 are both located on the same side of the corresponding first sub-region column AA1L.

[0067] For example, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7 As shown, multiple first sub-region columns AA1L are spaced apart in the first direction X, and the first sub-region columns AA1L include at least two first sub-regions AA1 arranged sequentially in the second direction Y.

[0068] For example, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7 As shown, in the same first sub-region AA1, in a direction parallel to the plane of the substrate 11, the two electrode pairs 132 electrically connected by the third driving circuit 1313 and the fourth driving circuit 1314 are respectively located on the same side of the first sub-region AA1. For example, in the same first sub-region AA1, the third driving circuit 1313 is electrically connected to the first light-emitting unit 21, and the fourth driving circuit 1314 is electrically connected to the second light-emitting unit 22. The first light-emitting unit 21 and the second light-emitting unit 22 are respectively located on the same side of the corresponding first sub-region column AA1L. Figures 4 to 6 As illustrated, the first light-emitting unit 21 and the second light-emitting unit 22 are respectively located to the left or right of the corresponding first sub-region column AA1L. Figure 6 (As shown to the left of the first dashed line).

[0069] For example, Figures 4 to 6 or such Figure 4 / Figure 5 / Figure 7 As shown, in the same first sub-region AA1, in a direction parallel to the plane of the substrate 11, the two electrode pairs 132 electrically connected by the third driving circuit 1313 and the fourth driving circuit 1314 are located on the same side of the first sub-region AA1. This facilitates the array arrangement of the first sub-region AA1 and the second sub-region AA2, and also makes the light-emitting unit 20 and the driving circuit 131 as evenly arranged as possible, so that the image is displayed as evenly as possible.

[0070] For example, Figures 4 to 6 or such Figure 4 / Figure 5 / Figure 7As shown, at least one electrode pair 132 is located in a second sub-region AA2, and a plurality of second sub-regions AA2 are arrayed to form a plurality of second sub-region columns AA2L spaced apart in the first direction X. The second sub-region columns AA2L include at least two second sub-regions AA2 arranged in the second direction Y. At least two second sub-region columns AA2L electrically connected to the drive circuit 131 in the same first sub-region column AA1L are all located on the same side of the corresponding first sub-region column AA1L (or are all located between two identical and adjacent first sub-region columns AA1L).

[0071] In some implementations, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7 As shown, in at least two partially adjacent first sub-region columns AA1L, the two electrode pairs 132 electrically connected by the third drive circuit 1313 and the fourth drive circuit 1314 are both located between the same and adjacent first sub-region columns AA1L.

[0072] For example, such as Figures 4 to 6 As shown, or as Figure 4 / Figure 5 / Figure 7 As shown, two adjacent first sub-region columns AA1L are illustrated. The two electrode pairs 132, or the first light-emitting unit 21 and the second light-emitting unit 22, electrically connected to the third driving circuit 1313 and the fourth driving circuit 1314 in the left first sub-region column AA1L are located between the two first sub-region columns AA1L. Figure 6 or Figure 7 (As shown to the left of the first dashed line). The two electrode pairs 132 electrically connected to the third driving circuit 1313 and the fourth driving circuit 1314 in the first sub-row AA1L on the right, or the first light-emitting unit 21 and the second light-emitting unit 22 are located between the two first sub-rows AA1L (as shown to the left of the first dashed line in the middle). Figure 6 or Figure 7 (As shown to the right of the first dashed line).

[0073] For example, such as Figure 7 As shown, the second electrode 1322 of the second light-emitting unit 22 electrically connected to the driving circuit 131 in the first sub-area column AA1L on the left can be arranged adjacent to the second electrode 1322 of the second light-emitting unit 22 electrically connected to the driving circuit 131 in the first sub-area column AA1L on the right, so that they can be connected through the same second connecting electrode 1302 (e.g., Figure 7 In the middle, the second connection electrode 1302 (overlapping with the first dashed line 101) provides an electrical signal, thereby further reducing the number of the second connection electrodes 1302.

[0074] It should be noted that, in Figures 1 to 3 The diagram illustrates the first driving circuit 1311 and the second driving circuit 1312. Figures 4 to 7 The diagram illustrates the third drive circuit 1313 and the fourth drive circuit 1314, but the naming of these drive circuits is not limited; for example, in... Figures 4 to 7 In the example, the third driving circuit 1313 and the fourth driving circuit 1314 can also be named the first driving circuit 1311 and the second driving circuit 1312, respectively.

[0075] In some implementations, such as Figures 1 to 3 As shown, Figures 4 to 6 or such Figure 4 / Figure 5 / Figure 7 As shown, a plurality of second electrodes 1322 are arrayed in a plurality of second electrode columns 1322L spaced apart in a first direction X. Each second electrode column 1322L includes at least two second electrodes 1322. A second connecting electrode 1302 extends along a second direction Y and is electrically connected to at least two second electrodes 1322 in the same second electrode column 1322L. The second direction Y intersects with the first direction X.

[0076] For example, such as Figure 3 ,or Figure 6 ,or Figure 7 As shown, a plurality of second electrodes 1322 arrays are arranged in a plurality of second electrode columns 1322L spaced apart in the first direction X, and the second electrode columns 1322L include at least two second electrodes 1322 arranged sequentially in the second direction Y.

[0077] For example, such as Figure 3 ,or Figure 6 ,or Figure 7 As shown, the second connecting electrode 1302 extends along the second direction Y and is electrically connected to at least two second electrodes 1322 in the same second electrode array 1322L. The second electrodes 1322 serve as common electrodes, thereby reducing the number of second connecting electrodes 1302.

[0078] For example, such as Figure 7 As shown, at least a portion of the second electrode rows 1322L are arranged adjacently (e.g., in pairs), and the second electrodes 1322 in two adjacent second electrode rows 1322L are electrically connected to the same second connecting electrode 1302. This allows for a further reduction in the number of second connecting electrodes 1302.

[0079] For example, such as Figure 3 As shown, a plurality of first electrodes 1321 arrays are arranged in a plurality of first electrode columns 1321L spaced apart in a first direction X, and the first electrode column 1321L includes at least two first electrodes 1321.

[0080] In some implementations, such as Figure 1 As shown, or as Figure 4 As shown, the display panel 100 also includes a plurality of bonding layers 30, which are located between the first electrode 1321 or the second electrode 1322 and the corresponding light-emitting unit 20. The light-emitting unit 20 is electrically connected to the first electrode 1321 or the second electrode 1322 through the corresponding bonding layer 30.

[0081] For example, such as Figure 1 As shown, or as Figure 4 As shown, the first sub-electrode of the light-emitting unit 20 is electrically connected to the first electrode 1321 through the bonding layer 30, and the second sub-electrode of the light-emitting unit 20 is electrically connected to the second electrode 1322 through the bonding layer 30.

[0082] For example, such as Figure 1 As shown, or as Figure 4 As shown, the material of the bonding layer 30 includes at least one of titanium, nickel, tin, gold, and copper, but is not limited to this.

[0083] It should be noted that in some other embodiments, the bonding layer 30 may not be provided. Instead, the first sub-electrode may be directly connected to the first electrode 1321 by laser irradiation, and the second sub-electrode may be directly connected to the second electrode 1322 by laser irradiation. In this case, the connection part may be the bonding layer 30.

[0084] Please see Figure 8 , Figure 8 This is a schematic diagram of a display device provided in an embodiment of this application.

[0085] Secondly, based on the same concept, this application also provides a display device 200, which includes a display panel 100 of any of the above features, or a display panel 100 that combines any of the above features.

[0086] For example, the display device 200 also has the beneficial effects of the display panel 100 in the above embodiments. The similarities can be understood with reference to the explanation of the display panel 100 above, and will not be repeated below.

[0087] For example, the display device 200 provided in the embodiments of this application can be Figure 8 The mobile phone shown can also be any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet, digital camera, smart bracelet, smart glasses, vehicle display, industrial control equipment, medical display, touch interactive terminal, etc. This application embodiment does not make any special limitation in this regard.

[0088] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, 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 various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: Base; An array composite layer is located on one side of the substrate. The array composite layer includes multiple driving circuits and multiple electrode pairs. Each electrode pair includes a first electrode and a second electrode. The electrode pairs are electrically connected to the corresponding driving circuits. Multiple light-emitting units are located on the side of the array composite layer away from the substrate, and the light-emitting units are electrically connected to the corresponding electrode pairs; Wherein, the orthographic projection of the electrode pair on the substrate at least partially overlaps with the orthographic projection of the corresponding light-emitting unit on the substrate; The driving circuit includes at least one thin-film transistor, the thin-film transistor includes an active portion, and the orthographic projection of the active portion on the substrate is spaced apart from the orthographic projection of the corresponding electrode pair on the substrate.

2. The display panel according to claim 1, characterized in that, The display panel includes a display area, which includes a plurality of first sub-areas and a plurality of second sub-areas; The driving circuit is located in the corresponding first sub-region, and the electrode pair is located in the corresponding second sub-region. The first sub-region and the second sub-region are spaced apart. The array composite layer further includes multiple first connecting electrodes and multiple second connecting electrodes, wherein the first connecting electrodes are electrically connected to the first electrode and the corresponding driving circuit; The second connecting electrode is electrically connected to at least partially adjacent two second electrodes.

3. The display panel according to claim 2, characterized in that, At least two of the driving circuits are located in the same first sub-region, and the at least two driving circuits located in the same first sub-region include a first driving circuit and a second driving circuit; Within the same first sub-region, in a direction parallel to the plane of the substrate, the two electrode pairs electrically connected by the first driving circuit and the second driving circuit are located on different sides of the first sub-region.

4. The display panel according to claim 3, characterized in that, Multiple first sub-region arrays are arranged in multiple first sub-region columns spaced apart in a first direction, each first sub-region column including at least two first sub-regions, and the first direction is parallel to the plane where the substrate is located. In the same first sub-region, in a direction parallel to the plane of the substrate, the two electrode pairs electrically connected by the first driving circuit and the second driving circuit are respectively located on opposite sides of the corresponding first sub-region column.

5. The display panel according to claim 2, characterized in that, At least two of the driving circuits are located in the same first sub-region, and the at least two driving circuits located in the same first sub-region include a third driving circuit and a fourth driving circuit; In a direction parallel to the plane of the substrate, the two electrode pairs electrically connected by the third driving circuit and the fourth driving circuit are located on the same side of the first sub-region.

6. The display panel according to claim 5, characterized in that, Multiple first sub-region arrays are arranged in multiple first sub-region columns spaced apart in a first direction, each first sub-region column including at least two first sub-regions, and the first direction is parallel to the plane where the substrate is located. In the same first sub-region, in a direction parallel to the plane where the substrate is located, the two electrode pairs electrically connected by the third driving circuit and the fourth driving circuit are both located on the same side of the corresponding first sub-region column.

7. The display panel according to claim 6, characterized in that, In at least two partially adjacent first sub-region columns, the two electrode pairs electrically connected by the third driving circuit and the fourth driving circuit are located between the same and adjacent first sub-region columns.

8. The display panel according to claim 4 or 6, characterized in that, Multiple second electrode arrays are arranged in multiple second electrode columns spaced apart in the first direction, and each second electrode column includes at least two second electrodes; The second connecting electrode extends along a second direction and is electrically connected to at least two second electrodes in the same second electrode array, the second direction intersecting the first direction.

9. The display panel according to claim 1, characterized in that, The display panel further includes multiple bonding layers, which are located between the first electrode or the second electrode and the corresponding light-emitting unit. The light-emitting unit is electrically connected to the first electrode or the second electrode through the corresponding bonding layer.

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

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