Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises: a film layer structure of a light emitting device and a film layer structure of a pixel circuit which are arranged in a stack; wherein the film layer structure of the light emitting device comprises a plurality of first electrodes; the film layer structure of the pixel circuit comprises a plurality of pixel circuits, and the pixel circuits are used for providing driving signals to the first electrodes; an additional conductive layer is located between at least part of the film layer structure of the light emitting device and the film layer structure of the pixel circuit; the additional conductive layer forms an obstruction to the film layer structure of the pixel circuit, and the relative positions of at least part of the first electrodes and the projections of the corresponding additional conductive layers along the thickness direction of the display panel are consistent. Compared with the prior art, the display effect of the display panel is improved.

Description

Technical Field

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

[0002] With the continuous development of display technology, people have increasingly higher requirements for display panels and display devices. For example, they require display panels to have narrow bezels, high display quality, and foldability. Especially in recent years, the demand for large-screen, full-screen mobile phones has become increasingly strong, and narrow bezel technology for display panels has become more and more mature. However, in existing technologies, narrow bezel display panels suffer from a decrease in display effect. Summary of the Invention

[0003] The present invention provides a display panel and a display device to improve the display effect of the display panel.

[0004] To achieve the above technical objectives, the embodiments of the present invention provide the following technical solutions:

[0005] A display panel, comprising:

[0006] A film layer structure of a light-emitting device and a film layer structure of a pixel circuit are stacked together; wherein, the film layer structure of the light-emitting device includes a plurality of first electrodes; the film layer structure of the pixel circuit includes a plurality of pixel circuits, the pixel circuits being used to provide driving signals to the first electrodes;

[0007] An additional conductive layer is located between at least a portion of the film structure of the light-emitting device and the film structure of the pixel circuit; the additional conductive layer shields the film structure of the pixel circuit, and at least a portion of the first electrode and its corresponding additional conductive layer are aligned in relative position along the thickness direction of the display panel.

[0008] Furthermore, the additional conductive layer includes:

[0009] The shielding part is used to shield the film structure of the pixel circuit, and the relative position of the shielding part and the projection of the corresponding first electrode along the thickness direction of the display panel is consistent.

[0010] The first intermediate connection line is used to connect the pixel circuit and the first electrode.

[0011] The technical solution features an additional conductive layer that includes both a shielding portion and a first intermediate connecting line. This allows the first electrode and the pixel circuit to be connected while shielding the film structure of the pixel circuit. The structure is simple and easy to implement.

[0012] Preferably, the shielding portion and the first intermediate connecting line are an integral structure. This configuration increases the size of the first intermediate connecting line, which helps reduce its impedance and thus facilitates signal transmission. Furthermore, during the manufacturing process of the display panel, etching between the shielding portion and the first intermediate connecting line is unnecessary, reducing the complexity of the manufacturing process.

[0013] Furthermore, the vertical projection of the blocking portion onto the first electrode overlaps with the vertical projection of the conductive layer in the pixel circuit onto the first electrode. This configuration makes the blocking portion more targeted, achieving maximum improvement with minimal size.

[0014] Preferably, the vertical projection of the blocking portion onto the first electrode covers the vertical projection of the conductive layer in the pixel circuit onto the first electrode. This configuration further enhances the blocking effect of the blocking portion, thereby improving the display effect of the display panel.

[0015] Preferably, the vertical projection of the blocking portion onto the first electrode at least covers the first electrode or the sub-pixel opening. This arrangement is equivalent to aligning the blocking portion with the first electrode, eliminating the need for adjustments based on different sub-pixel positions. This reduces the difficulty of mask fabrication and simplifies the manufacturing process. Furthermore, the sub-pixel opening is the channel through which external light and light emitted from the light-emitting device enter the pixel circuit, and also the channel through which interference light exits the display panel. Therefore, ensuring that the vertical projection of the blocking portion onto the first electrode at least covers the sub-pixel opening helps to block light propagation in the light-emitting device and pixel circuit, further improving the moiré pattern of the display panel.

[0016] Furthermore, the dimensions of each of the first electrodes are equal, or the opening dimensions of each sub-pixel are equal; the dimensions of each of the occluding portions are equal. For example, this arrangement is suitable for the standard RGB arrangement of pixels, in which the opening dimensions of each sub-pixel are equal, and correspondingly, the dimensions of each occluding portion are equal, which is beneficial for uniform light emission of each sub-pixel and reduces the difficulty of fabrication.

[0017] Alternatively, the dimensions of each of the first electrodes are arranged according to a preset pattern, or the sub-pixel opening dimensions are arranged according to a preset pattern, and the size of each occluding portion scales proportionally with the size of its corresponding first electrode. For example, this setting is applicable to RGBG arrangement. In RGBG (Pentile) arrangement, the opening size of the green sub-pixel is smaller than the opening size of the red (or blue) sub-pixel. Correspondingly, the size of the occluding portion corresponding to the green sub-pixel is smaller than the size of the occluding portion corresponding to the red (or blue) sub-pixel. This setting helps to ensure uniform light emission from each sub-pixel and improves display defects such as moiré patterns.

[0018] Furthermore, at least a portion of the pixel circuitry is offset relative to the light-emitting device towards the center of the display panel; the additional conductive layer is located at least between the offset pixel circuitry and the first electrode. This arrangement allows for the placement of bezel circuitry in the empty area at the edge of the display area, achieving a narrow bezel effect; it also improves the display effect of moiré patterns. Additionally, moiré patterns are more likely to occur between the offset pixel circuitry and the first electrode; placing the additional conductive layer at least between the offset pixel circuitry and the first electrode helps to mitigate this problem.

[0019] Preferably, the pixel circuit located at the edge of the display panel is a first pixel circuit, and the pixel circuit located in the middle of the display panel is a second pixel circuit. The projected size of the first pixel circuit along the thickness direction of the display panel is smaller than the projected size of the second pixel circuit along the thickness direction of the display panel.

[0020] The first pixel circuit is offset toward the center of the display panel relative to the first electrode; the second pixel circuit is in the same position as the first electrode; the additional conductive layer is located at least between the first pixel circuit and the first electrode.

[0021] Furthermore, the display panel includes a display area and a bezel area, with the light-emitting device and the pixel circuit both located in the display area; at least a portion of the circuitry in the bezel area is offset towards the center of the display area. This configuration further reduces the bezel size of the display panel, facilitating a narrow bezel design.

[0022] Preferably, the line width of the first pixel circuit is smaller than the line width of the second pixel circuit. Reducing the line width can reduce the size of the pixel circuit, and thus, by offsetting the pixel circuit located at the edge of the display area towards the center of the display area, a border circuit is set in the empty area at the edge of the display area, achieving a narrow border effect.

[0023] Preferably, the line width of the circuit in the border area is smaller than the line width of the second pixel circuit. Similarly, reducing the line width can reduce the size of the border area circuit, achieving a narrow border effect.

[0024] Furthermore, the additional conductive layer further includes a signal transmission line for providing signals to the pixel circuit; preferably, the signal transmission line includes at least one of a power line, a data line, or a reference voltage line. This configuration further utilizes the routing space in the additional conductive layer, thereby reducing the number of traces in other conductive layers, further reducing the size of the pixel circuit, and thus further facilitating the realization of a narrow bezel.

[0025] Furthermore, the film structure of the pixel circuit includes:

[0026] The active layer includes the semiconductor structure of the transistors in the pixel circuit;

[0027] The first conductive layer includes the gate of the transistor and / or an electrode plate of the capacitor;

[0028] The second conductive layer includes another electrode plate of the capacitor;

[0029] The third conductive layer includes the source and drain of the transistor;

[0030] The additional conductive layer is located between the third conductive layer and the first electrode.

[0031] If each conductive layer is a metal layer, then the first conductive layer can be called the first metal layer, the second conductive layer can be called the second metal layer, and the third conductive layer can be called the third metal layer. That is, the film structure of this pixel circuit is a three-metal layer structure.

[0032] Furthermore, the film structure of the pixel circuit includes:

[0033] The active layer includes the semiconductor structure of the transistors in the pixel circuit;

[0034] The first conductive layer includes the gate of the transistor and / or an electrode plate of the capacitor;

[0035] The second conductive layer includes another electrode plate of the capacitor;

[0036] The third conductive layer includes the source and drain of the transistor;

[0037] The fourth conductive layer includes the second intermediate connection line;

[0038] The additional conductive layer is located between the fourth conductive layer and the first electrode.

[0039] If each conductive layer is a metal layer, then the first conductive layer can be called the first metal layer, the second conductive layer can be called the second metal layer, the third conductive layer can be called the third metal layer, and the fourth conductive layer can be called the fourth metal layer. That is, the film structure of this pixel circuit is a four-metal film structure.

[0040] Accordingly, the present invention also provides a display device, comprising: a display panel as described in any embodiment of the present invention.

[0041] This invention, through the addition of an additional conductive layer in the display panel, shields the film structure of the pixel circuit, and ensures that at least a portion of the first electrode and its corresponding additional conductive layer maintain the same relative position along the thickness direction of the display panel. Therefore, the additional conductive layer reduces interference between the first electrode and the film structure of the pixel circuit caused by light from the light-emitting layer or external sources. Even in narrow-bezel solutions, where misalignment occurs between the film structure of the pixel circuit and the first electrode, or changes in the wiring layout and density of the pixel circuit under the first electrode, the additional conductive layer reduces interference between the film structure of the pixel circuit and the first electrode. In other words, unlike existing technologies, the film structure beneath the first electrode is no longer the pixel circuit film structure that changes with misalignment, but rather the additional conductive layer. Compared to the pixel circuit film structure, the additional conductive layer maintains the same relative position with the first electrode, resulting in better uniformity, which helps reduce moiré patterns between the first electrode and the additional conductive layer. In summary, the embodiments of the present invention improve the poor display effect caused by moiré patterns in narrow bezel display panels, thereby enhancing the display effect of the display panel.

[0042] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of an existing display panel before achieving a narrow bezel.

[0045] Figure 2 A schematic diagram illustrating the structure for achieving a narrow bezel in an existing display panel;

[0046] Figure 3 This is a cross-sectional structural diagram of a display panel provided in an embodiment of the present invention;

[0047] Figure 4 A cross-sectional structural diagram of another display panel provided in an embodiment of the present invention;

[0048] Figure 5A cross-sectional structural schematic diagram of another display panel provided in an embodiment of the present invention;

[0049] Figure 6 A cross-sectional structural schematic diagram of another display panel provided in an embodiment of the present invention;

[0050] Figure 7 A cross-sectional structural schematic diagram of another display panel provided in an embodiment of the present invention;

[0051] Figure 8 A cross-sectional structural schematic diagram of another display panel provided in an embodiment of the present invention;

[0052] Figure 9 A cross-sectional structural schematic diagram of another display panel provided in an embodiment of the present invention;

[0053] Figure 10 This invention provides a cross-sectional structural diagram of a method for reducing pixel circuit size by reducing trace width, as described in an embodiment of the invention.

[0054] Figure 11 A cross-sectional structural schematic diagram of another display panel provided in an embodiment of the present invention;

[0055] Figure 12 A cross-sectional structural schematic diagram of another display panel provided in an embodiment of the present invention;

[0056] Figure 13 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0057] Figure 14 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0058] Figure 15 This is a schematic diagram of another display panel provided in an embodiment of the present invention. Detailed Implementation

[0059] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0060] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0061] As described in the background section, the inventors discovered through long-term research that existing display panels, while achieving narrow bezels, suffer from a decrease in display quality. The specific reasons are analyzed below.

[0062] Figure 1 This is a structural diagram of an existing display panel before achieving a narrow bezel. See also... Figure 1 The following explanation uses an organic light-emitting diode (OLED) display panel as an example. The display panel includes a display area 01 and a border area 02 surrounding the display area 01. The display area 01 is provided with sub-pixels 010 arranged in an array. Each sub-pixel 010 includes a light-emitting device 012 and a pixel circuit 011 that provides driving current to the light-emitting device 012. The light-emitting device 012 and the pixel circuit 011 have a one-to-one correspondence, and their relative positions are fixed. For example, as shown... Figure 1 As shown, the area formed by the pixel circuit 011 is rectangular, and all the light-emitting devices 012 are located in the lower right part of the corresponding pixel circuit 011. In other cases, the light-emitting devices 012 can also be located in the lower left, middle, upper left, or upper right part of the corresponding pixel circuit 011. Since the pixel circuit 011 is composed of a metal film layer, the light emitted by the light-emitting device 012 and the light from nature will interfere between the metal film layers through the light-emitting device 012, which has good light transmittance. Thanks to Figure 1 The relative positions of each light-emitting device 012 and pixel circuit 011 in the display panel shown are fixed, that is, the arrangement of the metal film layer under the light-emitting device 012 remains unchanged. When the inventor modifies... Figure 1 When the display panel shown is tested for moiré patterns under natural light in a black state, the moiré patterns produced by the display panel are not obvious and will not affect the normal display of the display panel.

[0063] See also Figure 1The bezel area 02 is equipped with a scan drive circuit 020 that generates scan signals and light emission control signals, as well as clock signal lines, power signal lines, and power signal lines required by the scan drive circuit and the display panel. Figure 1 (not shown in the image). Furthermore, the scan drive circuit 020 includes cascaded shift registers 021, resulting in a relatively complex circuit structure. In addition, the large number of signal lines that need to be routed in the border 02 makes the size of the border area 02 relatively large, which is not conducive to the design of a narrow border.

[0064] Those skilled in the art will understand that a display panel has a multi-layer structure. Typically, the layer structure of the pixel circuit 011 and the layer structure of the bezel area 02 circuit share a layer-reuse relationship, meaning they belong to the same dimension. However, the layer structure of the light-emitting device 012 is located above the layer structure of the pixel circuit 011, and the two belong to different dimensions. Existing technology can reduce the size of the bezel area 020 by compressing the dimensions of the pixel circuit 011 and / or the scan driving circuit 020.

[0065] Figure 2 This is a schematic diagram illustrating a structure for achieving a narrow bezel in an existing display panel. As described above, to achieve a narrow bezel, while keeping the size and position of the light-emitting device 012 in the display area 01 unchanged, the size of the pixel circuit 011 and / or the scan driving circuit 020 is compressed and concentrated towards the center of the display area 01. At this time, some circuit structures in the bezel area 02 can be moved to the edge of the display area 01, thereby reducing the size of the bezel area 02.

[0066] The inventor also Figure 2 The display panel shown was subjected to a moiré pattern test under natural light with the screen off. The test results show that, compared to... Figure 1 compared to, Figure 2 The structure shown produced noticeable moiré patterns, affecting the display panel's display performance. The inventors conducted in-depth research and discovered that... Figure 2 As the pixel circuit 011 and / or scanning drive circuit 020 converge toward the center of the display area 01, misalignment occurs between the light-emitting device 012 and the pixel circuit 011. Specifically, the metal wiring in the pixel circuit 011 is arranged differently in different locations; some areas have a larger and denser number of wires in the metal film layer, while others have fewer and sparser wires. This misalignment results in significant differences in the arrangement of the metal film layer beneath the different light-emitting devices 012, i.e., significant differences in metal density. The interference phenomenon of light transmitted through the light-emitting device 011 on the metal film layer varies, causing moiré pattern display problems. Furthermore, the closer to the border area 02, the larger the size of the misalignment between the pixel circuit 011 and the light-emitting device 012.

[0067] In view of this, embodiments of the present invention provide a display panel that, from the perspective of film layer structure, adds a conductive layer to improve the display problem caused by moiré patterns. Figure 3 This is a cross-sectional structural diagram of a display panel provided in an embodiment of the present invention. See also: Figure 3 The display panel includes: a film structure of a light-emitting device 12, an additional conductive layer 13, and a film structure of a pixel circuit 11. The film structures of the light-emitting device 12 and the pixel circuit 11 are stacked; the additional conductive layer 13 is located between at least a portion of the film structures of the light-emitting device 12 and the pixel circuit 11. The film structure of the light-emitting device 12 includes a plurality of first electrodes 121; the film structure of the pixel circuit 11 includes a plurality of pixel circuits 11, which provide driving signals to the first electrodes 121. The additional conductive layer 13 shields the film structure of the pixel circuits 11, and at least a portion of the first electrodes 121 and their corresponding additional conductive layer 13 are positioned relative to each other along the thickness direction X of the display panel.

[0068] The first electrode 121 in the light-emitting device 12 is an electrode that receives the driving signal provided by the pixel circuit 11. The first electrode 121 can be, for example, an anode. The film structure of the light-emitting device 12 also includes a light-emitting layer 123 and a second electrode (…). Figure 3 (Not shown in the image), the light-emitting layer 123 is defined within the pixel opening of the pixel definition layer 122. In some embodiments, in order to improve the performance of the light-emitting device 12, the film structure of the light-emitting device 12 further includes film layers such as a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer.

[0069] The film structure of the pixel circuit 11 includes transistors, capacitors, and signal lines forming the pixel circuit 11. Most of the film structure in the pixel circuit 11 is a conductive layer, preferably a metal conductive layer. The first electrode 121 of the light-emitting device 12 needs to be connected to the transistor in the pixel circuit 11 to transmit the driving signal to the light-emitting device 12. If the first electrode 121 is an anode, the corresponding second electrode is a cathode. For example, the second electrodes of all the light-emitting devices 12 in the display panel are connected to the same voltage signal, while the first electrodes 121 are connected to different driving signals (which can be voltage signals or current signals). Under the action of an applied electric field, electrons and holes are injected and migrate from the second electrode and the first electrode 121 to the light-emitting layer 123, respectively. In the light-emitting layer 123, electrons and holes recombine to generate excitons. The excitons migrate under the action of the electric field, transferring energy to the light-emitting molecules and exciting electrons to transition from the ground state to the excited state. The excited state energy is radiatively converted into photons, releasing energy, and the light-emitting device 12 emits light. The luminous intensity of the light-emitting device 12 is determined by the driving signal connected to the first electrode 121. In this embodiment of the invention, the connection between the light-emitting device 12 and the pixel circuit 11 can be achieved through an additional conductive layer 13.

[0070] The additional conductive layer 13 is a conductive layer added to the existing technology in this embodiment of the invention. The additional conductive layer 13 can be, for example, a metal layer. The additional conductive layer 13 being located between at least a portion of the film structure of the light-emitting devices 12 and the film structure of the pixel circuit 11 means that, in one embodiment, the additional conductive layer 13 is provided between the film structure of some of the light-emitting devices 12 and the film structure of the pixel circuit 11 of the display panel, while no additional conductive layer 13 is provided between the film structure of the other portion of the light-emitting devices 12 and the film structure of the pixel circuit 11; in another embodiment, the additional conductive layer 13 is provided between the film structure of all the light-emitting devices 12 and the film structure of the pixel circuit 11 of the display panel.

[0071] It is understood that the additional conductive layer 13 shielding the film structure of the pixel circuit 11 means that, due to the presence of the additional conductive layer 13, the amount of external light or light generated by the light-emitting device 12 that illuminates the film structure of the pixel circuit 11 is reduced or even zero; and at least some of the light that interferes with the film structure of the pixel circuit 11 illuminates the additional conductive layer 13, and cannot directly illuminate the first electrode 121. For example, there is an overlap between the additional conductive layer 13 and the pixel circuit 11, and at the same time, there is an overlap between the additional conductive layer 13 and the first electrode 121. That is to say, from the perspective of the light-emitting device 12, the additional conductive layer 13 shields the film structure of the pixel circuit 11, reducing the interference phenomenon between the light transmitted from the light-emitting device 12 and the film structure of the pixel circuit 11. The additional conductive layer 13 may partially or completely shield the film structure of the pixel circuit 11. If the light is partially blocked, some of the light reflected by the film structure of the pixel circuit 11 will illuminate the additional conductive layer 13, while the rest will still illuminate the first electrode 121. If the light is completely blocked, all the light reflected by the film structure of the pixel circuit 11 will illuminate the additional conductive layer 13. The specific settings can be adjusted according to the actual situation.

[0072] It is understood that maintaining the relative position of the additional conductive layer 13 and the first electrode 121 along the thickness direction X of the display panel means that the position of the additional conductive layer 13 does not shift with the misalignment of the pixel circuit 11, that is, the overlapping area of ​​the additional conductive layer 13 and the first electrode 121 remains fixed. Figure 3 As shown, the thickness direction X of the display panel can be from bottom to top or from top to bottom. For example, the relative positional relationship between the additional conductive layer 13 and the first electrode 121 is such that the additional conductive layer 13 is located directly below the first electrode 121; or, the additional conductive layer 13 is located to the lower left of the first electrode 121; or the additional conductive layer 13 is located to the lower right of the first electrode 121, etc.

[0073] This embodiment of the invention adds an additional conductive layer 13 to the display panel. This additional conductive layer 13 shields the film structure of the pixel circuit 11, and at least a portion of the first electrode 121 and its corresponding additional conductive layer 13 maintain the same relative position along the thickness direction X of the display panel. Therefore, the addition of the additional conductive layer 13 reduces interference between the light transmitted from the light-emitting layer 123 and the film structure of the pixel circuit 11. Even in narrow bezel implementations, where misalignment occurs between the film structure of the pixel circuit 11 and the first electrode 121, and the wiring layout and density of the pixel circuit 11 under the first electrode 121 change, the additional conductive layer 13 shields the film, reducing interference between the film structure of the pixel circuit 11 and the first electrode 121. In other words, unlike existing technologies, the film structure beneath the first electrode 121 is no longer the film structure of the pixel circuit 11 that changes with misalignment, but rather the additional conductive layer 13. Compared to the film structure of the pixel circuit 11, the relative positions of the additional conductive layer 13 and the projection of the first electrode 121 along the thickness direction X of the display panel are consistent, i.e., the uniformity is better, which helps to reduce the moiré pattern problem caused by light interference between the first electrode 121 and the additional conductive layer 13. In summary, the embodiments of the present invention improve the poor display effect caused by moiré patterns in narrow bezel display panels, and enhance the display effect of the display panel.

[0074] See also Figure 3 Based on the above embodiments, optionally, the additional conductive layer 13 includes: a shielding portion 131 and a first intermediate connecting line 132. The shielding portion 131 is used to shield the film structure of the pixel circuit 11, and the relative position of the shielding portion 131 and the corresponding first electrode 121 along the thickness direction X of the display panel is consistent. The first intermediate connecting line 132 is used to connect the pixel circuit 11 and the first electrode 121.

[0075] The shielding portion 131 is a key component of the additional conductive layer 13. Specifically, the shielding portion 131 can shield the conductive layer and other film structures in the film structure of the pixel circuit 11, thereby improving the moiré pattern caused by interference between the conductive layer and the first electrode 121 in the film structure of the pixel circuit 11. Therefore, the shielding portion 131 should be aligned with the relative position of the projection of the first electrode 121 along the thickness direction X of the display panel. Since the additional conductive layer 13 is located between the film structure of the light-emitting device 12 and the film structure of the pixel circuit 11, a first intermediate connection line 132 is required to connect the pixel circuit 11 and the first electrode 121. Specifically, an insulating layer 14 is provided between the additional conductive layer 13 and the film structure of the pixel circuit 11. The material of the insulating layer 14 can be, for example, an organic material, an inorganic material, or a combination of organic and inorganic materials. By drilling through holes in the insulating layer 14, the connection between the first intermediate connection line 132 and the pixel circuit 11 can be achieved. An insulating layer 15 is provided between the additional conductive layer 13 and the first electrode 121. The material of the insulating layer 15 can be, for example, an organic material, an inorganic material, or a combination of organic and inorganic materials. By drilling a hole in the insulating layer 15, the first intermediate connecting line 132 can be connected to the first electrode 121.

[0076] In this embodiment of the invention, the additional conductive layer 13 includes both a shielding portion 131 and a first intermediate connecting line 132, which can achieve the function of connecting the first electrode 121 and the pixel circuit 11 while shielding the film structure of the pixel circuit 11. This configuration in this embodiment of the invention is simple in structure and easy to implement.

[0077] See also Figure 3 Optionally, the blocking part 131 and the first intermediate connecting line 132 are separately configured, that is, the blocking part 131 only serves as a blocking function and does not transmit signals; the first intermediate connecting line 132 only serves as a signal transmission function and does not block the film structure of the pixel circuit 11. In other embodiments, the blocking part 131 can also be configured as a signal transmission line; or, the first intermediate connecting line 132 can be configured as a blocking part to block the film structure of the pixel circuit 11. It can be set as needed in practical applications.

[0078] Figure 4 This is a schematic cross-sectional view of another display panel provided in an embodiment of the present invention. See also... Figure 4In one embodiment of the present invention, optionally, the shielding portion 131 and the first intermediate connecting line 132 are an integral structure, that is, the shielding portion 131 and the first intermediate connecting line 132 are reused. This arrangement, on the one hand, increases the size of the first intermediate connecting line 132, which helps to reduce the impedance of the first intermediate connecting line 132, thereby facilitating signal transmission. On the other hand, during the manufacturing process of the display panel, there is no need to etch between the shielding portion 131 and the first intermediate connecting line 132, which helps to reduce the difficulty of the process.

[0079] In the above embodiments, there are various ways to set the size, position and shape of the shielding part 131. Several of them will be described below, but they are not intended to limit the present invention.

[0080] Figure 5 This is a cross-sectional structural diagram of another display panel provided in an embodiment of the present invention. See also... Figure 5 In one embodiment of the present invention, optionally, the vertical projection of the blocking portion 131 on the first electrode 121 overlaps with the vertical projection of the conductive layer in the pixel circuit 11 on the first electrode 121. Here, the vertical projection refers to the projection along the thickness direction X of the display panel. For example, if the light rays interfered by the film structure of the pixel circuit 11 propagate along the thickness direction X of the display panel, the overlapping portion is the portion of the conductive layer of the pixel circuit 11 blocked by the blocking portion 131.

[0081] In addition to the additional conductive layer 13, the display panel also includes other conductive layers, such as the conductive layers in the film structure of the pixel circuit 11. The conductive layers in the film structure of the pixel circuit 11 include metal trace structures such as scan lines, data lines, reference voltage signal lines, and power signal lines, as well as device structures such as capacitors, gates, sources, and drains. Specifically, the semiconductor layer 111, source 112, drain 113, and gate 114 constitute a transistor, and the capacitor electrode plates 115 and 116 constitute a capacitor. The gate 114 and capacitor electrode plate 115 are located on the same metal layer, and the source 112 and drain 113 are located on the same metal layer. Specifically, when metal traces overlap with the first electrode 121, light will interfere between these metal traces and the first electrode 121, resulting in moiré patterns. Therefore, only the metal traces overlapping with the first electrode 121 will affect the display, and the blocking part 131 only needs to block these metal traces. The present invention is configured in such a way that the setting of the blocking part 131 is more targeted, and the maximum improvement effect can be achieved with the smallest size.

[0082] Figure 5In this example, only a capacitor is disposed below the first electrode 121, and correspondingly, the projection of the blocking portion 131 and the capacitor onto the first electrode 121 overlaps. In this way, the blocking portion 131 can block part of the capacitor, thereby reducing the moiré pattern caused by interference of light between the capacitor and the first electrode 121 and improving the display effect.

[0083] Figure 6 This is a cross-sectional structural diagram of another display panel provided in an embodiment of the present invention. See also... Figure 6 In one embodiment of the present invention, optionally, the vertical projection of the blocking portion 131 onto the first electrode 121 covers the vertical projection of the conductive layer in the film structure of the pixel circuit 11 onto the first electrode 121. Figure 5 Unlike the previous solution, this technical solution can completely block the conductive layer directly opposite the first electrode 121, thereby further improving the display problem caused by moiré patterns. Figure 6 The diagram exemplarily illustrates two first electrodes 121 and their corresponding shielding portions 131. Below the right first electrode 121 is a capacitor; correspondingly, the projection of the shielding portion 131 onto the first electrode 121 overlaps the projection of the capacitor onto the first electrode 121. Below the left first electrode 121 is a transistor; correspondingly, the projection of the shielding portion 131 onto the first electrode 121 overlaps the projection of the transistor onto the first electrode 121. Furthermore, the right-side and left-side shielding portions 131 are of equal size, and their relative positions to their corresponding first electrodes 121 are consistent. This configuration simplifies the fabrication process and provides good suppression of moiré patterns.

[0084] exist Figure 6 In the illustrated technical solution, the relative positions of all the shielding portions 131 (additional conductive layer 13) and their corresponding first electrodes 121 are consistent, which is not a limitation of the present invention. In other technical solutions, the shape and size of the shielding portions 131 can be adjusted according to the facing positions of the conductive layers in the film structure of the pixel circuits 11 at different positions in the display panel and the first electrodes 121, so that the relative positions of some shielding portions 131 and their corresponding first electrodes 121 are consistent. For example... Figure 7As shown, exemplarily, if the pixel circuit 11 is misaligned, and some transistors in the pixel circuit 11 are directly opposite the first electrode 121 on the left, for this part of the structure, the blocking portion 131 corresponding to the first electrode 121 can block the transistors, and the relative position of these blocking portions 131 to the first electrode 121 remains consistent. Additionally, some capacitors in the pixel circuit 11 are directly opposite the first electrode 121 on the right. For this part of the structure, the blocking portion 131 corresponding to the first electrode 121 can block the capacitors, and the relative position of these blocking portions 131 to the first electrode 121 remains consistent. The blocking portion 131 provided in this embodiment of the invention is flexibly configured and can be set as needed in practical applications.

[0085] Figure 8 This is a cross-sectional structural diagram of another display panel provided in an embodiment of the present invention. See also... Figure 8 In one embodiment of the present invention, optionally, the vertical projection of the additional conductive layer 13 onto the first electrode 121 at least covers the first electrode 121. The size of the first electrode 121 in the same color sub-pixel of the display panel is generally fixed; or, the size of the first electrode 121 in all sub-pixels of the display panel is generally fixed. In this embodiment of the present invention, the vertical projection of the additional conductive layer 13 onto the first electrode 121 at least covers the first electrode 121, which is equivalent to setting the additional conductive layer 13 to be consistent with the first electrode 121. This setting eliminates the need to adjust the setting of the blocking portion 131 according to sub-pixels at different positions, which helps to reduce the difficulty of mask fabrication and thus simplifies the manufacturing process.

[0086] Figure 9 This is a cross-sectional structural diagram of another display panel provided in an embodiment of the present invention. See also... Figure 9In one embodiment of the present invention, optionally, the vertical projection of the blocking portion 131 onto the first electrode 121 at least covers the opening of the pixel definition layer 122 corresponding to the first electrode 121, i.e., the sub-pixel opening. The sub-pixel opening is the actual position where the light-emitting device 12 emits light. The film structure such as the light-emitting layer 123 within the sub-pixel opening is a light-transmitting material. Therefore, the sub-pixel opening is also the optical path channel for external natural light and the light emitted by the sub-pixel to be transmitted to the film structure of the pixel circuit 11. Therefore, by blocking the opening of the pixel definition layer 122, this embodiment of the present invention can reduce moiré patterns caused by interference between the capacitor and the first electrode 121, thus improving the display effect. Furthermore, similar to the first electrode 121, the size of the sub-pixel openings of the same color in the display panel is generally fixed; or, the size of all sub-pixel openings in the display panel is generally fixed. In this embodiment of the present invention, setting the vertical projection of the blocking portion 131 onto the first electrode 121 to at least cover the sub-pixel opening is equivalent to setting the blocking portion 131 to be consistent with the first electrode 121. This design eliminates the need for adjustments to the blocking portion 131 based on the different positions of the sub-pixels, reducing the difficulty of mask fabrication and thus simplifying the manufacturing process. Furthermore, the sub-pixel opening serves as the channel for external light and light emitted from the light-emitting device 12 to enter the pixel circuit 11, and also as the channel for interference light to exit the display panel. Therefore, ensuring that the vertical projection of the blocking portion 131 onto the first electrode 121 at least covers the sub-pixel opening helps to prevent light from propagating between the film structure of the light-emitting device 12 and the film structure of the pixel circuit 11, further improving the moiré pattern of the display panel.

[0087] In the above embodiments, optionally, the size of the pixel circuit 11 can be reduced by reducing the width of the metal traces. Figure 10 This is a cross-sectional structural diagram illustrating how reducing the pixel circuit size by decreasing the trace width is provided in an embodiment of the present invention. See also... Figure 10 In the upper display panel, the source 112 and drain 113 are wider, requiring more space, resulting in larger transistors and consequently, larger pixel circuits 11. In the lower display panel, the source 112 and drain 113 are narrower, reducing the space required, resulting in smaller transistors and consequently, smaller pixel circuits 11. Therefore, by reducing the width of the metal traces, the size of the pixel circuit 11 can be reduced. Furthermore, by offsetting the pixel circuits 11 located at the edge of the display area towards the center, and placing bezel circuits in the empty area at the edge of the display area, a narrow bezel effect can be achieved.

[0088] The additional conductive layer 13 provided by this invention is applicable to any film structure of the pixel circuit 11. Combined with... Figures 5-10In one embodiment of the present invention, optionally, the film structure of the pixel circuit 11 includes: an active layer, a first conductive layer, a second conductive layer, and a third conductive layer. The active layer includes the semiconductor layer 111 of the transistor in the pixel circuit 11; the first conductive layer includes the gate 114 of the transistor and / or a capacitor electrode 115 of the capacitor; the second conductive layer includes the other capacitor electrode 116 of the capacitor; and the third conductive layer includes the source 112 and the drain 113 of the transistor. Wherein, if each conductive layer is a metal layer, then the first conductive layer can be called the first metal layer, the second conductive layer can be called the second metal layer, and the third conductive layer can be called the third metal layer. That is, the film structure of the pixel circuit 11 is a three-metal layer film structure. An additional conductive layer 13 is located between the third conductive layer and the first electrode 121.

[0089] Figure 11 This is a cross-sectional structural diagram of another display panel provided in an embodiment of the present invention. See also... Figure 11 In one embodiment of the present invention, optionally, the film structure of the pixel circuit 11 includes: an active layer, a first conductive layer, a second conductive layer, a third conductive layer, and a fourth conductive layer. The active layer includes the semiconductor layer 111 of the transistor in the pixel circuit 11; the first conductive layer includes the gate 114 of the transistor and / or a capacitor electrode plate 115 of the capacitor; the second conductive layer includes the other capacitor electrode plate 116 of the capacitor; the third conductive layer includes the source 112 and the drain 113 of the transistor; and the fourth conductive layer includes a second intermediate connection line 117. The second intermediate connection line 117 is used in the prior art to connect the pixel circuit 11 and the first electrode 131, and in this embodiment of the present invention, it is used to connect the pixel circuit 11 and the additional conductive layer 13. In addition, the fourth conductive layer can also be used to set up wiring structures such as power lines, data lines, or reference voltage lines to optimize the film layer layout. If each conductive layer is a metal layer, then the first conductive layer can be called the first metal layer, the second conductive layer can be called the second metal layer, the third conductive layer can be called the third metal layer, and the fourth conductive layer can be called the fourth metal layer. The additional conductive layer 13 is located between the fourth conductive layer and the first electrode 121.

[0090] Figure 12 This is a cross-sectional structural diagram of another display panel provided in an embodiment of the present invention. See also... Figure 12In one embodiment of the present invention, the additional conductive layer 13 may optionally include a signal transmission line 133 for providing a signal to the pixel circuit 11. Preferably, the signal transmission line 133 includes at least one of a power line, a data line, or a reference voltage line. By providing the signal transmission line 133 in the additional conductive layer 13, the present invention further utilizes the routing space in the additional conductive layer 13, thereby reducing the number of traces in other conductive layers, further reducing the size of the pixel circuit 11, and further facilitating the realization of a narrow bezel.

[0091] It should be noted that the larger the size of the blocking part 131, the better the blocking effect on the conductive layer in the film structure of the pixel circuit 11, and the better the suppression effect on moiré patterns; however, if the size of the blocking part 131 is too large, the parasitic capacitance of the conductive layer in the film structure of the pixel circuit 11 will increase. In practical applications, the size of the blocking part 131 can be set as needed.

[0092] Based on the above embodiments, optionally, the embodiments of the present invention are applicable to any pixel arrangement method. Several such methods are described below, but are not intended to limit the present invention.

[0093] Figure 13 This is a schematic diagram of a display panel provided in an embodiment of the present invention. See also... Figure 13 In one embodiment of the present invention, optionally, the dimensions of each first electrode 121 are equal or the dimensions of each sub-pixel opening are equal; correspondingly, the dimensions of each blocking portion 131 are equal. This arrangement is applicable to the standard RGB pixel arrangement, in which the dimensions of each sub-pixel opening are equal, and correspondingly, the dimensions of each blocking portion 131 are equal. This arrangement facilitates uniform light emission from each sub-pixel and reduces the difficulty of fabrication.

[0094] Figure 14 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention. See also... Figure 14 In one embodiment of the present invention, optionally, the sizes of each first electrode 121 are arranged in a preset pattern, or the sizes of the sub-pixel openings are arranged in a preset pattern; correspondingly, the size of each blocking portion 131 is scaled proportionally with the size of its corresponding first electrode 121. This setting is applicable to RGBG arrangement, in which the opening size of the green sub-pixel is smaller than the opening size of the red sub-pixel (or blue sub-pixel), and correspondingly, the size of the blocking portion 131 corresponding to the green sub-pixel is smaller than the size of the blocking portion 131 corresponding to the red sub-pixel (or blue sub-pixel). This setting is beneficial for uniform light emission of each sub-pixel and improves display defects such as moiré patterns.

[0095] In other embodiments of the present invention, other pixel arrangement methods may also be used, such as RGBW arrangement, RGB Delta arrangement, diamond arrangement, etc.

[0096] It should be noted that in the above embodiments, the shape of the first electrode 121 and the shape of the sub-pixel opening are shown as rectangular, which is not intended to limit the present invention. In other embodiments, the shape of the first electrode 121 or the sub-pixel opening can be set to other shapes. Accordingly, the shape of the blocking portion 131 can also be adaptively adjusted according to the shape of the first electrode 121 or the sub-pixel opening.

[0097] See also Figure 13 and Figure 14 Based on the above embodiments, optionally, at least a portion of the pixel circuit 11 is misaligned relative to the light-emitting device 12 towards the center of the display panel; an additional conductive layer 13 is located at least between the misaligned pixel circuit 11 and the first electrode 121. Wherein, the additional conductive layer 13 being located at least between the misaligned pixel circuit 11 and the first electrode 121 means, see [link to relevant documentation] Figure 13 and Figure 14 In one embodiment, the additional conductive layer 13 is located between all pixel circuits 11 and the first electrode 121. Alternatively, see... Figure 15 In another embodiment, the additional conductive layer 13 is located only between the misaligned pixel circuit 11 and the first electrode 121. This configuration in the embodiments of the present invention is flexible and adaptable to various practical applications; the position of the additional conductive layer 13 can be set as needed.

[0098] See also Figures 13-15 Based on the above embodiments, optionally, the pixel circuit 11 located at the edge of the display panel is a first pixel circuit 119, and the pixel circuit 11 located in the middle of the display panel is a second pixel circuit 118. The projected size of the first pixel circuit 119 along the thickness direction of the display panel is smaller than the projected size of the second pixel circuit 118 along the thickness direction of the display panel. The first pixel circuit 119 is offset towards the middle of the display panel relative to the first electrode 121; the relative position of the second pixel circuit 118 and the first electrode 121 is consistent; the additional conductive layer 13 is located at least between the first pixel circuit 119 and the first electrode 121. That is, part of the pixel circuit 11 (the first pixel circuit 119) is offset towards the middle of the display panel relative to the first electrode 121, while the relative position of the other part of the pixel circuit 11 (the second pixel circuit 118) and the first electrode 121 remains unchanged. Therefore, the light-emitting device 12 corresponding to the first pixel circuit 119 is prone to moiré patterns, while the light-emitting device 12 corresponding to the second pixel circuit 118 is less prone to moiré patterns. Specifically, see Figure 13 and Figure 14In one embodiment, the additional conductive layer 13 is located between all pixel circuits 11 and the first electrode 121, i.e., the additional conductive layer 13 is disposed at the light-emitting device where moiré patterns are more likely to occur. See also Figure 15 In another embodiment, the additional conductive layer 13 is located only between the first pixel circuit 119 and the first electrode 121.

[0099] Preferably, the line width of the first pixel circuit 119 is smaller than the line width of the second pixel circuit 118; the line width of the circuit in the border area is smaller than the line width of the second pixel circuit 118. This arrangement helps to reduce the size of the circuit while ensuring the stable operation of the pixel circuit 11 and the border circuit.

[0100] It should be noted that the edge of the display panel refers to the area closer to the border of the display panel, while the center of the display panel is the area farther from the border compared to the edge. This embodiment of the invention does not limit the shape and position of the dividing line between the edge and the center of the display panel; it can be set as needed in practical applications.

[0101] See also Figures 13-15 Based on the above embodiments, optionally, the display panel includes a display area 1 and a bezel area 2, with the light-emitting device 12 and pixel circuit 11 both located in the display area 1; at least a portion of the circuitry in the bezel area 2 is offset towards the center of the display area 1. For example, the bezel area 2 includes a scan driving circuit 20, a portion of which is located within the display area 1. This configuration reduces the size of the bezel area 2, which is beneficial for narrow bezel design of the display panel.

[0102] In other embodiments, the pixel circuits 11 in the display panel are all first pixel circuits 119 with a smaller projected size along the thickness direction of the display panel, and the additional conductive layer 13 is located between the first pixel circuit 119 and the first electrode 121. The first pixel circuit 119 is smaller than the second pixel circuit 118. The second pixel circuit 118 can be considered to be arranged in the same way as existing pixel circuits, and its size matches the spacing of the light-emitting devices. Therefore, the relative position of the second pixel circuit 118 and the light-emitting device 12 remains consistent. The first pixel circuit 119 can be considered to be a pixel circuit with a smaller size compared to the prior art. In this embodiment of the invention, the first pixel circuit 119 and the light-emitting device 12 are misaligned, and the relative positions between each first pixel circuit 119 and the light-emitting device 12 are inconsistent, which easily leads to moiré patterns. The moiré pattern problem of the entire display panel can be improved by adding a conductive layer 13 between all the first pixel circuits 119 and the light-emitting device 12. Furthermore, this setting is equivalent to reducing the overall size of all circuits in the display panel, freeing up more space for the circuits in the bezel area 2, which is beneficial for further reducing the size of the bezel area 2 of the display panel.

[0103] It should also be noted that the above embodiments are described using a one-to-one correspondence between the light-emitting device 12 and the pixel circuit 11 as an example, and are not intended to limit the present invention. In other embodiments, the light-emitting device 12 and the pixel circuit 11 can also be configured as one-to-two, one-to-many, two-to-one, two-to-many, etc. In this case, the shielding portion 131 in the additional conductive layer 13 is mainly configured for the light-emitting device 12.

[0104] It should also be noted that the embodiments of the present invention are not only applicable to display panels with narrow bezels, but also to display panels with conventional settings.

[0105] This invention also provides a display device, which can be a mobile phone, computer, tablet computer, wearable device, etc. The display device includes the display panel provided in any embodiment of this invention, and its technical principles and effects are similar, so they will not be described again.

[0106] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0107] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A display panel, characterized in that, include: A film layer structure of a light-emitting device and a film layer structure of a pixel circuit are stacked together; wherein, the film layer structure of the light-emitting device includes a plurality of first electrodes; the film layer structure of the pixel circuit includes a plurality of pixel circuits, the pixel circuits being used to provide driving signals to the first electrodes; An additional conductive layer is located between at least a portion of the film structure of the light-emitting device and the film structure of the pixel circuit; the additional conductive layer shields the film structure of the pixel circuit, and at least a portion of the first electrode and its corresponding additional conductive layer are aligned in relative position along the thickness direction of the display panel. At least a portion of the pixel circuitry is offset relative to the light-emitting device toward the center of the display panel; The additional conductive layer is located at least between the misaligned pixel circuit and the first electrode.

2. The display panel according to claim 1, characterized in that, The additional conductive layer includes: The shielding part is used to shield the film structure of the pixel circuit, and the relative position of the shielding part and the projection of the corresponding first electrode along the thickness direction of the display panel is consistent. The first intermediate connection line is used to connect the pixel circuit and the first electrode.

3. The display panel according to claim 2, characterized in that, The shielding part and the first intermediate connecting line are an integral structure.

4. The display panel according to claim 2, characterized in that, The vertical projection of the occluding portion onto the first electrode overlaps with the vertical projection of the conductive layer in the pixel circuit onto the first electrode.

5. The display panel according to claim 4, characterized in that, The vertical projection of the blocking portion onto the first electrode covers the vertical projection of the conductive layer in the pixel circuit onto the first electrode.

6. The display panel according to claim 4, characterized in that, The vertical projection of the occluding portion onto the first electrode at least covers the first electrode or the sub-pixel opening.

7. The display panel according to claim 2, characterized in that, The dimensions of each of the first electrodes are equal or the dimensions of the sub-pixel openings are equal, and the dimensions of each of the shielding portions are equal; Alternatively, the dimensions of each of the first electrodes are arranged in a preset pattern or the sub-pixel opening dimensions are arranged in a preset pattern, and the dimensions of each of the occluding portions are scaled proportionally to the dimensions of their corresponding first electrodes.

8. The display panel according to claim 1, characterized in that, The pixel circuit located at the edge of the display panel is the first pixel circuit, and the pixel circuit located in the middle of the display panel is the second pixel circuit. The projection size of the first pixel circuit along the thickness direction of the display panel is smaller than the projection size of the second pixel circuit along the thickness direction of the display panel. The first pixel circuit is offset toward the center of the display panel relative to the first electrode; the second pixel circuit is in the same position as the first electrode; the additional conductive layer is located at least between the first pixel circuit and the first electrode.

9. The display panel according to claim 8, characterized in that, The display panel includes a display area and a border area, and the light-emitting device and the pixel circuit are both located in the display area; at least a portion of the circuit in the border area is offset toward the center of the display area.

10. The display panel according to claim 8, characterized in that, The line width of the first pixel circuit is smaller than the line width of the second pixel circuit.

11. The display panel according to claim 9, characterized in that, The line width of the circuit in the border area is smaller than the line width of the second pixel circuit.

12. The display panel according to claim 1, characterized in that, The additional conductive layer further includes a signal transmission line for providing signals to the pixel circuit.

13. The display panel according to claim 12, characterized in that, The signal transmission line includes at least one of a power line, a data line, or a reference voltage line.

14. The display panel according to claim 1, characterized in that, The film structure of the pixel circuit includes: The active layer includes the semiconductor structure of the transistors in the pixel circuit; The first conductive layer includes the gate of the transistor and / or an electrode plate of the capacitor; The second conductive layer includes another electrode plate of the capacitor; The third conductive layer includes the source and drain of the transistor; The additional conductive layer is located between the third conductive layer and the first electrode.

15. The display panel according to claim 1, characterized in that, The film structure of the pixel circuit includes: The active layer includes the semiconductor structure of the transistors in the pixel circuit; The first conductive layer includes the gate of the transistor and / or an electrode plate of the capacitor; The second conductive layer includes another electrode plate of the capacitor; The third conductive layer includes the source and drain of the transistor; The fourth conductive layer includes the second intermediate connection line; The additional conductive layer is located between the fourth conductive layer and the first electrode.

16. A display device, characterized in that, Includes the display panel as described in any one of claims 1-15.

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