Display panel and display device

Abstract

Embodiments of the present application disclose a display panel and a display device. The display panel comprises a substrate, a non-display area and a display area surrounding the non-display area; the non-display area comprises a first non-display area and a second non-display area with different areas; a plurality of first signal lines are spaced apart by the first non-display area, a plurality of second signal lines are spaced apart by the second non-display area, a first auxiliary line is electrically connected to first sub-signal lines and second sub-signal lines which are spaced apart by the first signal lines, a second auxiliary line is electrically connected to third sub-signal lines and fourth sub-signal lines which are spaced apart by the second signal lines, and the first auxiliary line comprises a first part in the display area, and the second auxiliary line comprises a second part in the display area, wherein the number of the first auxiliary lines is greater than the number of the second auxiliary lines. Embodiments of the present application enable the display area around the non-display area to normally display images, while also reducing the area of the non-display area, and can improve the screen-to-body ratio of the existing display panel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, more particularly, to a display panel and a display device. BACKGROUND

[0002] At present, in order to improve the user experience of the display panel, an opening is generally arranged above the display panel, and the opening is used for placing functional components such as a camera and a sensor. In order to realize the normal driving of the pixels near the opening area, the signal lines connected with the pixels need to be arranged. Since the number of functional components is large and the area of the opening area is large, the data lines and the gate lines that have been arranged may be disconnected by the opening. In addition, the display space of the display panel is further compressed by the non-display area around the opening, and there is a problem of insufficient space. SUMMARY

[0003] Therefore, the present application provides a display panel and a display device, which effectively solve the technical problems in the prior art and improve the display effect of the display device.

[0004] To achieve the above object, the technical scheme provided by the present application is as follows.

[0005] A display panel comprises:

[0006] a substrate;

[0007] a non-display area and a display area surrounding the non-display area;

[0008] The non-display area comprises a first non-display area and a second non-display area which are spaced apart; the first non-display area has a larger orthographic projection area on the substrate than the second non-display area;

[0009] The display area comprises signal lines extending along a first direction, and the signal lines comprise a plurality of first signal lines and a plurality of second signal lines; the first signal lines comprise first sub-signal lines and second sub-signal lines which are spaced apart by the first non-display area, and the second signal lines comprise third sub-signal lines and fourth sub-signal lines which are spaced apart by the second non-display area;

[0010] auxiliary lines comprising a plurality of first auxiliary lines and a plurality of second auxiliary lines;

[0011] The first auxiliary lines connect the first sub-signal lines and the second sub-signal lines, and the first auxiliary lines comprise a first part located in the display area;

[0012] The second auxiliary lines connect the third sub-signal lines and the fourth sub-signal lines, and the second auxiliary lines comprise a second part located in the display area;

[0013] The number of the first auxiliary lines is greater than the number of the second auxiliary lines.

[0014] Correspondingly, the application further provides a display device comprising the display panel.

[0015] The display panel provided by the application comprises a first non-display area and a second non-display area with different areas, and can meet the requirements of other non-display functions of the display panel. The signal lines extending along the first direction comprise first signal lines separated by the first non-display area and second signal lines separated by the second non-display area. The first auxiliary lines electrically connect the first signal lines separated by the first non-display area, and the second auxiliary lines electrically connect the second signal lines separated by the second non-display area, so as to realize normal signal transmission of the signal lines separated around the non-display area, thereby ensuring normal display of the display panel. Meanwhile, at least part of the structures of the first auxiliary lines and the second auxiliary lines are arranged in the display area, without the need to additionally arrange a wider wiring space for connecting the signal lines separated by the non-display area in the non-display area, and the existing display area of the display panel is more effectively utilized, so as to realize reduction of the area of the non-display area and optimization of the space utilization of the display panel.

[0016] It should be noted that the effects of the present disclosure are not limited to the effects described above, and other effects of the present disclosure will be apparent to those skilled in the art through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only the embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on the provided drawings.

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a display panel in a related design;

[0019] Figure 2 FIG. 2 is a structural schematic diagram of a display panel provided by an embodiment of the application;

[0020] Figure 3 FIG. 3 is a structural schematic diagram of a display panel provided by an embodiment of the application; Figure 2 FIG. 4 is a partial enlarged view of the A area in FIG. 3;

[0021] Figure 4 FIG. 5 is another partial enlarged view of the A area in FIG. 3; Figure 2 FIG. 6 is another partial enlarged view of the A area in FIG. 3;

[0022] Figure 5 FIG. 7 is another partial enlarged view of the A area in FIG. 3; Figure 2 FIG. 8 is another partial enlarged view of the A area in FIG. 3;

[0023] FIG. 9 is another partial enlarged view of the A area in FIG. 3.Figure 6 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. Figure 2 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0024] Figure 7 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. Figure 2 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0025] Figure 8 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. Figure 2 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0026] Figure 9 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0027] Figure 10 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. Figure 2 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0028] Figure 11 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. Figure 2 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0029] Figure 12 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. Figure 2 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0030] Figure 13 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0031] Figure 14 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0032] Figure 15 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0033] Figure 16 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. Figure 2 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B.

[0034] Figure 17 Another partial enlarged view of the A region in the embodiment of the present application is provided in FIG. 4B. DETAILED DESCRIPTION

[0035] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0036] It should be noted that the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] The terms used in the embodiments of the present application are merely for the purpose of describing particular embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0038] It should be understood that the term "and / or" used herein only describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0039] It should be understood that, for the purpose of explanation, many specific details are set forth in order to provide a thorough understanding of various exemplary embodiments or implementations of the present application. "Embodiments" and "implementations" are used interchangeably herein as non-limiting examples of apparatuses or methods employing one or more of the inventive concepts disclosed herein. Features, components, modules, layers, films, regions, and / or aspects (hereinafter individually or collectively referred to as "elements") of the various embodiments can be additionally combined, separated, exchanged, and / or rearranged without departing from the inventive concepts.

[0040] Generally, the use of cross-hatching and / or shading in the drawings is intended to illustrate the boundaries of the adjacent elements by visual differentiation, and is not intended to indicate or imply any preference or requirement for particular materials, properties, dimensions, ratios, etc. In addition, for clarity and / or descriptive purposes, the size and relative size of the various elements shown in the drawings can be exaggerated relative to other elements, and / or not drawn to scale. Further, like reference numerals are intended to denote like elements throughout the various drawings.

[0041] When an element or layer is referred to as being "on" another element or layer, "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer, or intervening elements or layers can be present. The term "connected" can refer to physical or electrical connection, electrical connection with or without intervening elements, and / or fluid connection, with or without intervening elements.

[0042] It should be understood that, although the terms first, second, third, etc. can be adopted in the embodiments of the present application to describe various types of elements, these elements should not be limited by these terms. These terms are only used to distinguish the elements from each other. For example, without departing from the scope of the embodiments of the present application, the first area can also be referred to as the second area, and similarly, the second area can also be referred to as the first area.

[0043] Figure 1 is a structural schematic diagram of a display panel in the related art, the display panel 01 includes a display area AA01 and a functional component setting area NA01, wherein the functional component setting area NA01 is located at the upper edge of the display panel 01 and adjacent to the edge of the display area AA01, that is, the edge of the display area AA01 is recessed to the center of the display area to form a containing space, and the functional component setting area NA01 is located in the containing space. The functional component setting area NA01 includes a plurality of through holes TH01 for accommodating functional components. It can be understood that the design of the functional component setting area NA01 occupies the area of the display panel, compresses the area of the display area AA01 in the display panel, and the functional component setting area NA01 also includes a large number of invalid areas that cannot be utilized, causing waste of space of the display panel and being not conducive to realizing high screen ratio. In addition, the display area AA01 also includes a side display area AA02 adjacent to the functional component setting area NA01, and the side display area AA02 is usually used to display status bar information (for example: time, signal, etc.). Due to the limitation of space, the information that can be displayed is limited, for example: the side display area AA02 does not have enough space to display the battery percentage value or weather information.

[0044] In recent years, in addition to the traditional picture display function, the display panel also has higher and higher requirements on user experience, and usually needs to pre-reserve a plurality of functional component setting areas in front of the display panel. The functional components work by receiving the information transmitted by the functional component setting area to improve the human-computer interaction experience. The functional components can include distance sensors, ambient light sensors, infrared sensors, front cameras, face recognition, and earpieces, etc. At the same time, larger screen ratio display panels are also the trend of future market development, and the essential functional components will inevitably challenge the high screen ratio display panel.

[0045] The present inventors have found that, as Figure 2If the display area surrounds the functional component setting area, the user can experience the functions of the terminal (such as a mobile phone) except for the display information during use of the terminal, the terminal is more intelligent, and a whole area for the functional components does not need to be set for placing the functional components. In this way, the area occupied by the invalid area that is not utilized between the functional components can be reduced, the space utilization of the display panel is greatly improved, the screen ratio is improved, the space available for the side display area AA02 in the related design is fully released, the display area has sufficient display area for displaying more information to facilitate the user to quickly obtain more information, and the overall appearance of the display panel is more optimized and aesthetic, and the visual experience of the user during use is increased.

[0046] Meanwhile, the present inventors have found that, since the display area surrounds the functional component setting area, the signal lines such as the data lines and the scan lines that have been designed in the display panel can be disconnected by the functional component setting area, which affects the normal display of the display panel. Moreover, due to the number of functional components and the necessity of setting the functional components, the number of disconnected signal lines is large, and a large panel dead area needs to be set to place the connection signal lines for connecting the signal lines disconnected by the functional component setting area, which causes the area of the display area of the display panel to be compressed.

[0047] If the area occupied by the functional component setting area is to be reduced, the connection signal lines described above can also be selected not to be set around the functional component setting area, but to be routed from the outer frame area FA surrounding the display area of the display panel to re-electrically connect the parts of the signal lines disconnected by the functional setting area. In this way, the number of connection signal lines in the outer frame area is large (for example, the functional component setting area can disconnect several dozen signal lines, and in some cases, it can also disconnect several hundred signal lines). Since the outer frame area of the display panel usually also includes structures such as test circuits, shift register units, and power voltage signal buses (not shown in the figure), the metal film layers of the outer frame area and the wiring space in each metal film layer are very limited. The addition of a large number of connection signal lines directly increases the width of the outer frame area of the display panel, which reduces the screen ratio of the display panel. If the size of the circuits and signal buses and the like in the outer frame area are further compressed to reserve space for the connection signal lines to re-electrically connect the parts of the signal lines disconnected by the functional setting area in the outer frame area, the performance of the circuits and / or signal buses in the outer frame area will be damaged, which affects the signal transmission capability, thereby affecting the display quality, and causing uneven display or abnormal display of the picture, and the like.

[0048] In view of the above, the present inventors provide a display panel, please continue to refer to Figure 2 and Figure 3 , Figure 2This is a schematic diagram of the structure of a display panel 10 provided in an embodiment of this application. The display panel includes a non-display area NA and a display area AA. The non-display area NA includes a first non-display area NA1 and a second non-display area NA2 spaced apart. The display area AA is disposed around the non-display area NA, and the first non-display area NA1 is on the substrate ( Figure 2 The projected area of ​​the first non-display area NA1 on the substrate is greater than the projected area of ​​the second non-display area NA2 on the substrate. This design provides sufficient space for functional components, improves the user experience, and balances the screen-to-body ratio and overall aesthetics of the display panel. The projected area of ​​the first non-display area NA1 on the substrate can be 1.5 times, 2 times, 2.5 times, 3 times, 4 times, etc., of the projected area of ​​the second non-display area NA2 on the substrate; this application does not impose any limitation on this.

[0049] Figure 3 This is provided by the embodiments of this application. Figure 2 A magnified view of a portion of region A. Display area AA includes signal lines extending along a first direction X. These signal lines include multiple first signal lines L1 and multiple second signal lines L2. Due to the presence of a first non-display area NA1 and a second non-display area NA2, one first signal line L1 is separated by the first non-display area NA1, becoming a first sub-signal line L11 and a second sub-signal line L12. One second signal line L2 is separated by the second non-display area NA2, becoming a third sub-signal line L21 and a fourth sub-signal line L22. It is understood that the virtual extension of the first signal line L1 passes through the first non-display area NA1, and the first signal line L1 includes a first sub-signal line L11 and a second sub-signal line L12 spaced apart from the first non-display area NA1. Similarly, the virtual extension of the second signal line L2 passes through the second non-display area NA2, and the second signal line L2 includes a third sub-signal line L21 and a fourth sub-signal line L22 spaced apart from the second non-display area NA2. Understandably, the signal lines extending along the first direction X may also include conventional signal lines L0 that are not separated by the non-display area NA, and the conventional signal lines L0 penetrate the display area along the first direction X. Optionally, the signal lines may provide signals to the pixels PX in the display panel 10, and optionally, the signal lines may be electrically connected to pads (not shown in the figure) located in the outer bezel area FA; the signals may be one or more of the following: power supply voltage signal, data signal, reset signal, bias voltage signal, gate signal, and light emission control signal.

[0050] The first sub-signal line L11 and the second sub-signal line L12, separated by the first non-display area NA1, are electrically connected by a first auxiliary line F1 connected in series between them. The third sub-signal line L21 and the fourth sub-signal line L22, separated by the second non-display area NA2, are electrically connected by a second auxiliary line F2 connected in series. At least a portion of the first auxiliary line F1 includes a first part F11 located in the display area AA, and at least a portion of the second auxiliary line F2 includes a second part F21 located in the display area AA. With this design, the signal of the second sub-signal line L12 can be transmitted to the first sub-signal line L11 through the auxiliary line F1. By placing a portion of the structure of at least a portion of the first auxiliary line F1 in the display area AA, the area of ​​the first non-display area NA1 can be reduced (because the display area AA accommodates at least a portion of the first auxiliary line F1). Similarly, the signal of the fourth sub-signal line L22 can be transmitted to the third sub-signal line L21 through the auxiliary line F2. By placing a portion of the structure of at least a portion of the second auxiliary line F2 in the display area AA, the area of ​​the second non-display area NA2 can be reduced.

[0051] Understandably, to ensure the number of functional components on the display panel and for aesthetic reasons, the display panel has a first non-display area NA1 and a second non-display area NA2 with different areas. If the number of first F11 parts is the same as the number of second F21 parts, signal lines and auxiliary lines arranged in the same manner as the edges of the second non-display area NA2 can be symmetrically arranged along the edges of the first non-display area NA1. This would allow for better control of the load between the first signal line and the second signal line extending along the first direction X, and the design drawings would be simpler. However, this would result in some first sub-signal lines L11 and L12 separated by the first non-display area NA1 of the first signal line L1 being unable to achieve electrical connection through the first F11 located in the display area. The first sub-signal line L11 or the second sub-signal line L12 would not be able to receive the signal from the first signal line, directly affecting the display panel's display effect. If the space in the outer bezel area FA is used to set up the connection wiring to transmit the signal of the first signal line L1 to the first sub-signal line L11 or the second sub-signal line F12, the width of the display panel bezel would increase, making the panel design more complex and further compressing the area of ​​the display area in the display panel.

[0052] In some implementation schemes, reference can be made to Figure 4 As shown, Figure 4 Provided for embodiments of the present invention Figure 2Another partial enlarged view of the middle A region, for clearer description of the technical solution, part of the structure of the display panel is omitted. Since the area of the first non-display area NA1 is larger than the area of the second non-display area NA2, the number L of the first auxiliary lines F1 located on the side of the first non-display area NA1 away from the second non-display area NA2 can be set to be more, while the number M of the first auxiliary lines F1 located on the side of the first non-display area NA1 close to the second non-display area NA2 can be set to be less, that is, L is greater than M.

[0053] Considering the overall picture presentation effect of the display panel, if the interval distance between the first non-display area NA1 and the second non-display area NA2 is too large, the two non-display areas far apart will distract the user's attention when the display panel displays the picture, affecting the user's experience of watching the display picture, therefore, in the design, the non-display areas in the display panel are considered to be concentrated as much as possible, and the area of the display area between the two non-display areas is designed to be relatively small. Considering the space utilization and the balanced load, the number of auxiliary lines on both sides of the non-display area NA is preferably the same, that is, the display area between the two non-display areas includes the first auxiliary line and the second auxiliary line, but since the area of the display area is small and the space is limited, if L=M, even if the plurality of first auxiliary lines F1 and the plurality of second auxiliary lines F2 are arranged in different metal film layers, the problem of small wire spacing and crosstalk between wires still cannot be avoided, and the auxiliary lines will also cause coupling crosstalk with the conventional signal lines L0 in the region, affecting the display effect of the display area.

[0054] In the optional embodiment of the present application, more first auxiliary lines F1 are arranged on the side of the first non-display area NA1 away from the second non-display area NA2, that is, L>M, which can avoid the problem that the number of auxiliary lines in the display area between the two non-display areas is too large and densely arranged, and there is not enough space to place these auxiliary lines, and at the same time, can avoid the problem of crosstalk between wires due to too close distance between wires, affecting the display effect of the pixels (not shown in the figure) electrically connected to the first signal lines; and can also adjust the load of the signal lines in the display area between the two non-display areas, to prevent large parasitic capacitance difference between the signal lines in the region and the signal lines in other regions of the display panel, and avoid uneven picture display.

[0055] Optionally, in some embodiments, as shown in Figure 5 the number P of the second auxiliary lines F2 located on the side of the second non-display area NA2 away from the first non-display area NA1 can be set to be more, while the number Q of the second auxiliary lines F2 located on the side of the second non-display area NA2 close to the first non-display area NA1 can be set to be less, that is, P>Q.

[0056] It should be noted that, since the non-display area has a certain length and width, the auxiliary line also has a certain length in the first direction X and the second direction Y, respectively, and the second direction intersects the first direction. Taking the first non-display area NA1 and the second non-display area NA2 arranged along the second direction Y as an example, when part of the structure in the first auxiliary line F1 is located on the side of the first non-display area NA1 away from the second non-display area NA2, it can be considered that the first auxiliary line F1 is the first auxiliary line located on the side of the first non-display area NA1 away from the second non-display area NA2. Similarly, when part of the structure in the first auxiliary line F1 is located on the side of the first non-display area NA1 close to the second non-display area NA2, it can be considered that the first auxiliary line F1 is the first auxiliary line located on the side of the first non-display area NA1 close to the second non-display area NA2. When part of the structure in the second auxiliary line F2 is located on the side of the second non-display area NA2 away from the first non-display area NA1, it can be considered that the second auxiliary line F2 is the second auxiliary line located on the side of the second non-display area NA2 away from the first non-display area NA1. Similarly, when part of the structure in the second auxiliary line F2 is located on the side of the second non-display area NA2 close to the first non-display area NA1, it can be considered that the second auxiliary line F2 is the second auxiliary line located on the side of the second non-display area NA2 close to the first non-display area NA1.

[0057] Optionally, in order to balance the load of the signal lines in the display area, in the display area, a first part of only one first auxiliary line can be arranged between two adjacent conventional signal lines L0 along the second direction Y.

[0058] Optionally, in some embodiments, please continue to refer to Figure 2 , the first non-display area NA1 and the second non-display area NA2 are arranged along the second direction in sequence, the maximum length of the first non-display area NA1 along the second direction Y is W1, and the maximum length of the second non-display area NA2 along the second direction Y is W2, W1>W2, wherein the first direction X and the second direction Y are perpendicular. The first non-display area NA1 can accommodate more functional components, so the length of the first non-display area NA1 is designed to be longer, and the second non-display area NA2 spaced apart therefrom is designed to be smaller, which can be used to separately place a front camera and other functional components with higher light requirements, to avoid crosstalk to the camera when other functional components work.

[0059] Optionally, in some embodiments, please refer to Figure 6, the first non-display area NA1 includes the first through hole TH1, the second through hole TH2 and the invalid area NA0 between the two through holes, and the second non-display area includes the third through hole TH3, wherein the invalid area NA0 includes a virtual pixel PX0. It can be understood that the virtual pixel PX0 is a pixel that cannot display light. Optionally, the virtual pixel can include a light emitting device (including a cathode, a light emitting material layer and an anode) and a pixel circuit, but the two are not electrically connected; optionally, the virtual pixel can also include a pixel circuit and an anode connected to the pixel circuit, but without a light emitting material layer; optionally, the virtual pixel can also include one of any one layer structure (semiconductor structure, gate structure, source structure, drain structure and pixel circuit signal line structure) in the pixel circuit.

[0060] Optionally, in some embodiments, reference can be made to Figure 7 The invalid area NA0 can include a first auxiliary line. It can be understood that at this time, there are two cases of the first auxiliary line F1 in the display panel: one first auxiliary line F1 includes a first part F11 located in the display area, and one first auxiliary line F1 does not include a structure located in the display area. It should be noted that since the first non-display area NA1 includes the first through hole TH1 and the second through hole TH2, considering factors such as interference between functional components, an invalid area NA0 can be provided between the two, which can make the invalid area NA0 include part of the first auxiliary line F1, and the display area AA includes another part of the first auxiliary line F1, effectively utilizing the invalid space between the first through hole TH1 and the second through hole TH2, reducing the difficulty of wiring, and realizing the optimization of the space utilization of the display panel.

[0061] Optionally, since the invalid area NA0 includes a virtual pixel PX0 that does not emit light, more first auxiliary lines F1 can be placed in the invalid area NA0, and part of the structure of the virtual pixel in the invalid area NA0 is reused as the first auxiliary line F1. In this way, a plurality of first auxiliary lines F1 located in the invalid area NA0 can be arranged in different metal layers (for example, one or more of the insulatingly arranged gate metal layer, the source metal layer, the drain metal layer or the capacitor metal layer), thereby fully utilizing the space of the invalid area NA0.

[0062] Optionally, in some embodiments of the present application, reference can be made to Figure 8 As shown in FIG. 10, in order to the second non-display area, the packaging area FAA located between the third through hole TH3 and the display area AA can also be included, and at least part of the second auxiliary line is located in the packaging area FAA. It can be understood that the packaging area FAA includes at least part of the substrate, as well as structures such as the stop wall, the partition structure, the anti-crack groove and the like arranged on the substrate, and the packaging area FAA can protect the display panel 10, prevent water and oxygen from extending to the display area AA through the junction between the third through hole TH3 and the display panel 10, and affect the service life of the display panel.

[0063] It can be understood that, since the area of the second non-display area NA2 is smaller than the area of the first non-display area NA1, part of the second auxiliary line F2 can be arranged in the packaging area FAA, to relieve the wiring pressure in the display area between the first non-display area NA1 and the second non-display area NA2, and release the wiring space.

[0064] Optionally, in some embodiments, as shown in Figure 8 , the display area further includes a first transmission line S1 extending along the second direction Y, where the first transmission line S1 includes two first sub-transmission lines S11 spaced apart by the first non-display area NA1. Optionally, the display area AA can further include a second transmission line S2 extending along the second direction Y, where the second transmission line S2 penetrates the display area AA, i.e., the second transmission line S2 is not interrupted by the first non-display area NA1 or the second non-display area NA2. The auxiliary line includes a third auxiliary line F3 connecting the two first sub-transmission lines S11 spaced apart by the first non-display area NA1, and at least part of the third auxiliary line F3 includes a third part F31 located in the display area. Optionally, the first transmission line S1 and the second transmission line S2 can transmit one or more of a gate control signal, an emission control signal, an initialization signal, a reset signal, and a back bias voltage signal.

[0065] Further, in some optional embodiments, referring to Figure 9 , in order to more clearly describe the technical solutions, Figure 9 , part of the structure in the display panel is omitted, Figure 9 is an enlarged view of the first non-display area NA1. The invalid area NA0 further includes a first connection structure DL, which is electrically connected with the third auxiliary line. The dummy pixel PX0 in the invalid area NA0 includes a conductive structure DD, which overlaps the first connection structure in a direction perpendicular to the plane on which the substrate 100 is located. It can be understood that the pixel circuit usually includes a semiconductor layer provided with a source structure, a first metal layer provided with a gate control line, a second metal layer provided with one plate of a capacitor, and a third metal layer provided with one of a power voltage line or a data line, which are stacked in sequence. The conductive structure DD in the dummy pixel PX0 can be in the same layer as any one of the semiconductor layer, the first metal layer, the second metal layer, and the third metal layer.

[0066] The conductive structure DD is electrically connected with the fixed voltage terminal, and a compensation capacitor can be formed by the conductive structure DD and the first connection structure DL to balance the loads between the first transmission line S1 and the second transmission line S2, so as to avoid the difference in charging time between pixels in different rows in the second direction, thereby avoiding the difference between the display area corresponding to the first transmission line S1 and the display area corresponding to the second transmission line S2 in the display area, and improving the display uniformity of the display panel. It can be understood that, due to the existence of the first non-display area NA1 and / or the second non-display area NA2, part of the display area AA of the display panel is occupied, and therefore the number of pixels PX (not shown in the figure) electrically connected with the first transmission line S1 and separated by the first non-display area NA1 or the second non-display area NA2 is less than the number of pixels PX electrically connected with the second transmission line S2, that is, there is a large difference between the load on the first transmission line S1 and the load on the second transmission line S2. In some embodiments of the present application, a compensation capacitor is formed between the conductive structure DD in the virtual pixel PX0 in the invalid area NA0 and the first connection structure DL, which can compensate for the load difference between the first transmission line S1 and the second transmission line S2 caused by the missing pixels. Figure 9

[0067] Optionally, the line width of the first connection structure is greater than the line width of the first transmission line; or the line width of the first connection structure is greater than the line width of the third auxiliary line F3 located in the display area. In other words, along the first direction X, the length of the first connection line is greater than the line width of the first transmission line S1, so that the first connection line has a larger area, can have a larger overlapping structure with the conductive structure in the virtual pixel, has a larger compensation capacitor, and there is also enough wiring space in the invalid area NA0. Alternatively, along the first direction X, the length of the first connection line is greater than the length of the third part F31 of the third auxiliary line located in the display area AA, and the first connection line can be of the same layer and material as the third part F31, which is simpler to manufacture, does not need to set a via to realize line switching, and can avoid a large number of vias occupying the area of the display panel; the two can also be located in different metal film layers, which is not limited in the present application.

[0068] Optionally, please refer to Figure 10 At least part of the third auxiliary line F3 can also be arranged in the first non-display area. It can be understood that the display panel can include the third auxiliary line located in the display area AA, or can include the third auxiliary line entirely located in the first non-display area NA1, and part of the invalid area in the first non-display area NA1 can accommodate some third auxiliary lines F3.

[0069] Optionally, in some embodiments, all the third auxiliary lines F3 can be arranged in the non-display area, and at least part of the first part F11 of the first auxiliary line F1 and at least part of the second part F21 of the second auxiliary line F2 are arranged in the display area.​

[0070] Optionally, referring to Figure 11 In some embodiments, the virtual pixel includes a virtual pixel anode (not shown) and a virtual pixel circuit, the virtual pixel circuit includes a plurality of virtual signal lines X1 extending along the first direction X and a plurality of virtual control lines X2 extending along the second direction Y, i.e., in the inactive area NA0, the virtual signal lines and the virtual control lines form a grid-like arrangement. Reserving the virtual pixel anode and the virtual pixel circuit in the inactive area NA0 can make the metal pattern density in the first non-display area close to the metal pattern density in the display area, without changing the pixel arrangement on the substrate, which is beneficial to the layout design. The virtual signal lines and the virtual control lines can also be electrically connected to the first signal lines L1 or the first transmission lines S1, so as to realize normal signal transmission. In other words, since the first non-display area NA1 includes two through holes and an inactive area between the two through holes, the display panel 10 includes both the first signal lines spaced apart by the first through hole TH1 or the second through hole TH2 and the first signal lines spaced apart by the inactive area, and the virtual signal lines X2 can be used to realize signal transmission between the first sub-signal lines and the second sub-signal lines in the first signal lines spaced apart by the inactive area NA0.

[0071] Reference Figure 12 The display panel includes a first display area AA1 and a second display area AA2, and the second display area AA2 is located between the first non-display area NA1 and the second non-display area NA2 along the second direction.

[0072] Optionally, in some embodiments, along the second direction Y, the minimum length of the second display area is the same as the minimum length of the inactive area. In this way, the spacing between the plurality of through holes is substantially the same, and the design is simpler. It should be noted that the length referred to in the present application is substantially the same within the process error range. Considering the process error, the length difference between the two can be within ±5%.

[0073] Optionally, in some embodiments, along the second direction Y, the minimum length of the second display area is greater than the minimum length of the inactive area. Reducing the length of the inactive area as much as possible can further improve the screen-to-body ratio of the display panel.

[0074] Optionally, continuing to refer to Figure 12The area of ​​pixel PX1 in the first display area AA1 is larger than the area of ​​pixel PX2 in the second display area AA2. In some optional situations, such as always-on mode or other functional modes, some pixels in the second display area AA2 can be kept constantly lit to serve as a notification function. For example, displaying privacy alerts, such as during recording, where some pixels in the second display area AA2 light up to display a notification icon to remind the user that recording is in progress, or when answering calls, using the camera, etc., corresponding notification icons can be displayed in the second display area AA2. The area of ​​the second pixel included in the second display area AA2 can be set to be larger to extend the lifespan of the pixels in that area and improve the lifespan of the display panel.

[0075] Optionally, in some embodiments, reference may be made to Figure 13 The outer bezel area of ​​the display panel may further include an upper bezel area FA1 and a lower bezel area FA2 located on opposite sides of the display area AA. The lower bezel area includes a bending area BA. The first auxiliary line F1 also includes a fourth part F12 located in the upper bezel area. The fourth part F12 is electrically connected to the first part F11 to form the first auxiliary line F1, thereby realizing the electrical connection between the first sub-signal line and the second sub-signal line. The second auxiliary line F2 includes a fifth part F22 located in the upper bezel area. The fifth part F22 is electrically connected to the second part F21, thereby realizing the electrical connection between the third sub-signal line and the fourth sub-signal line. The upper bezel area FA1 includes fewer components. By placing the fourth and fifth parts in the upper bezel area, the wiring density in the display area AA can be reduced. At the same time, the space in the upper bezel area can be used more reasonably, avoiding the display panel including too many ineffective dead zones that are not used for the display area.

[0076] Optional, such as Figure 14 As shown, in the display area AA, the display panel includes a gate metal layer M1, a capacitor metal layer M2, a first metal layer M3, and a second metal layer M4, which are stacked in an insulating manner. An insulating layer 20 is provided between adjacent metal layers. The gate metal layer M1 may include the gate of a pixel circuit, the capacitor metal layer M2 may include one plate of a capacitor in the pixel circuit, the first metal layer M3 may include a first voltage signal line V1 in the pixel circuit, and the second metal layer M4 includes a second voltage signal line V2 in the pixel circuit. The first voltage signal line and the second voltage signal line can be positive potential power supply voltage signal lines, negative potential power supply voltage signal lines, or one of the following: a reset voltage signal line, an initialization voltage signal line, or a reverse bias voltage signal line. (Refer to...) Figure 15The pixel circuit schematic diagram shows that the positive power voltage signal line PVDD, the negative power voltage signal line PVEE, the reset voltage signal line ref1, the initialization voltage signal line vref2 and the reverse bias voltage signal line DVH can respectively provide voltage signals for corresponding transistors in the pixel circuit, so as to realize the normal work of the pixel circuit. The pixel circuit includes the positive power voltage line PVDD electrically connected with the first transistor T1, the data signal line data electrically connected with the second transistor T2, the reset voltage signal line vref1 electrically connected with the fifth transistor T5, the initialization voltage signal line vref2 electrically connected with the seventh transistor T7, the reverse bias voltage signal line DVH electrically connected with the eighth transistor T8, the driving transistor T3 and the threshold compensation transistor T4 connected in series between the first transistor T1 and the sixth transistor T6, the sixth transistor T6 connected in series between the driving transistor T3 and the pixel light emitting device OLED, and the other end of the light emitting device OLED electrically connected with the negative power voltage signal line PVEE. Among them, the gate of the first transistor T1 and the sixth transistor T6 is turned on or off in response to the signal of the light emitting control signal line Emit, the gate of the eighth transistor T8 and the seventh transistor T7 is turned on or off in response to the signal of the first gate signal line SP1, the gate of the second transistor T2 is turned on or off in response to the signal of the second gate signal line SP2, the gate of the fourth transistor T4 and the fifth transistor T5 is turned on or off in response to the signal of the third gate signal line SN1 and the fourth gate signal line SN2 respectively, and the gate of the driving transistor T3 is electrically connected with the drain of the fifth transistor. Among them, along the direction perpendicular to the plane where the substrate substrate 100 is located, the first part F11 is located in the third metal layer M5, the first part F11 at least partially overlaps with the first voltage signal line V1, and the first part F11 at least partially overlaps with the second voltage signal line V2. The first part F11 can be shielded from crosstalk of other signal lines by using the existing voltage signal line.

[0077] Optionally, along the direction perpendicular to the plane where the substrate substrate 100 is located, the third metal layer M5 can be located between the first metal layer and the second metal layer, and the shielding effect is better.

[0078] Optionally, please refer to Figure 10 、 Figure 13 and Figure 15And, in some embodiments, the control signal line (which can include one or more of the light emission control signal line Emit, the first gate signal line SP1, the second gate signal line SP2, the third gate signal line SN1, and the fourth gate signal line SN2) is electrically connected to the control end of other modules in the pixel driving circuit except the data writing module, so that the influence of the signal on the control signal line on the data signal in the pixel driving circuit is negligible. Therefore, the control signal line can be single-sidedly driven, that is, the control signal line is electrically connected to only one shift register. Part of the control signal lines in the display panel can be electrically connected to the first shift register VSR1, and the remaining control signal lines are electrically connected to the second shift register VSR2, which is beneficial to reducing the volume of the first shift register VSR1 and the second shift register VSR2, thereby facilitating the reduction of the size of the outer frame area FA and the realization of narrow frame.

[0079] The control signal lines corresponding to the same row of pixels can also be selected to be divided into first control signal lines and second control signal lines, wherein the first control signal lines corresponding to the first non-display area are electrically connected to the first shift register VSR1, and the second control signal lines corresponding to the second non-display area are electrically connected to the second shift register VSR2. It can be understood that, in this way, the pixels in the entire display area AA can be connected to the same shift register, the normal display of the pixels can be realized, and the pixels in the display area between the two non-display areas are controlled by the control signal lines corresponding to the first non-display area NA1. In this way, the pixels in the display area can be used to compensate for the load of the first control signal line, so that the loads of the first control signal line and the second control signal line tend to be consistent, and display unevenness in the display area near the two non-display areas is avoided.

[0080] Optionally, referring to Figure 16 In order to more clearly explain the technical solutions, Figure 16 Some of the first sub-signal lines, the second sub-signal lines, the third sub-signal lines, the fourth sub-signal lines, and other display panel structures are omitted in the display panel. The display panel further includes a first closed line B1 surrounding the first non-display area and / or a second closed line B2 surrounding the second non-display area. The first signal line further includes a plurality of first closed lines connected to a plurality of fifth sub-signal lines L13 that transmit the same signal, and the second signal line further includes a plurality of sixth sub-signal lines L23 that transmit the same signal. The first closed line B1 is connected to the plurality of fifth sub-signal lines L13, and the second closed line B2 is connected to the plurality of sixth sub-signal lines L23. The same signal lines are electrically connected together through the closed lines, which are connected in parallel to reduce the voltage drop of the signal lines and improve the display effect. Moreover, no additional signal connection lines need to be provided for the fifth sub-signal lines or the sixth sub-signal lines, which reduces the space occupied by the signal connection lines and is beneficial to improving the screen-to-body ratio.

[0081] Optionally, referring to Figure 17As shown, a structural schematic diagram of a display device provided by the embodiment of the present application is shown, wherein the display device 1000 provided by the embodiment of the present application can be a mobile terminal device.

[0082] Optionally, the display device provided by the present application can also be an electronic display device such as a computer, a wearable display device, etc., and the present application does not make specific limitation thereto.

[0083] The display panel and the display device provided by the embodiment of the present application can meet the requirement of other non-display functions of the display panel, the signal line extending along the first direction includes the first signal line separated by the first non-display area and the second signal line separated by the second non-display area, the first auxiliary line electrically connects the first signal line separated by the first non-display area, and the second auxiliary line electrically connects the second signal line separated by the second non-display area, so as to realize normal signal transmission of the signal line separated around the non-display area, thereby ensuring normal display of the display panel; meanwhile, at least part of the structure of the first auxiliary line and the second auxiliary line is arranged in the display area, without the need of additionally arranging a wider wiring space for connecting the signal line separated by the non-display area in the non-display area, more effectively utilizing the existing display area of the display panel, realizing reduction of the area of the non-display area and optimization of the space utilization of the display panel.

[0084] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a non-display area and a display area surrounding the non-display area; the non-display area comprises a first non-display area and a second non-display area spaced apart; the first non-display area has a larger orthographic projection area on the substrate than the second non-display area; the display area comprises signal lines extending along a first direction, the signal lines comprising regular signal lines, a plurality of first signal lines and a plurality of second signal lines; the regular signal lines extend through the display area along the first direction; the first signal lines comprise first sub-signal lines and second sub-signal lines spaced apart by the first non-display area, and the second signal lines comprise third sub-signal lines and fourth sub-signal lines spaced apart by the second non-display area; auxiliary lines comprising a plurality of first auxiliary lines and a plurality of second auxiliary lines; the first auxiliary lines connect the first sub-signal lines and the second sub-signal lines; at least part of the first auxiliary lines are located in a first part of the display area; the second auxiliary lines connect the third sub-signal lines and the fourth sub-signal lines; at least part of the second auxiliary lines are located in a second part of the display area; wherein the number of the first part is greater than the number of the second part; the display panel further comprises a first closed line surrounding the first non-display area and a second closed line surrounding the second non-display area; the plurality of first signal lines further comprise a plurality of fifth sub-signal lines having the same signal, and the plurality of second signal lines further comprise a plurality of sixth sub-signal lines having the same signal; the first closed line connects the plurality of fifth sub-signal lines; and the second closed line connects the plurality of sixth sub-signal lines.

2. The display panel of claim 1, wherein: the number of the first auxiliary lines located on the side of the first non-display area away from the second non-display area is L, and the number of the first auxiliary lines located on the side of the first non-display area close to the second non-display area is M, L>M.

3. The display panel of claim 2, wherein: the number of the second auxiliary lines located on the side of the second non-display area away from the first non-display area is P, and the number of the second auxiliary lines located on the side of the second non-display area close to the first non-display area is Q, P>Q.

4. The display panel of claim 1, wherein: the first non-display area and the second non-display area are arranged in sequence along a second direction; and along the second direction, the maximum length of the first non-display area is W1, and the maximum length of the second non-display area is W2, W1>W2; the second direction is perpendicular to the first direction.

5. The display panel of claim 4, wherein: the first non-display area comprises a first through hole, a second through hole, and an invalid area located between the first through hole and the second through hole; and the second non-display area comprises a third through hole; the invalid area comprises virtual pixels which do not emit light.

6. The display panel of claim 5, wherein: the invalid area further comprises the first auxiliary lines. The number of the first auxiliary lines located in the invalid area is greater than the number of the first auxiliary lines located in the display area.

7. The display panel of claim 6, wherein, The second non-display area further comprises a packaging area between the third via hole and the display area, and the packaging area comprises the second auxiliary line.

8. The display panel of claim 5, wherein, The display area further comprises a first transmission line extending along the second direction; The first transmission line comprises two first sub-transmission lines separated by the first non-display area; The auxiliary line comprises a third auxiliary line connecting the two first sub-transmission lines; at least part of the third auxiliary line comprises a third part located in the display area.

9. The display panel of claim 8, wherein, The invalid area further comprises a first connection structure electrically connected with the third auxiliary line; The virtual pixel comprises a conductive structure; in a direction perpendicular to a plane on which the substrate is located, the first connection structure overlaps with the conductive structure, and the conductive structure is electrically connected with a fixed voltage terminal.

10. The display panel of claim 9, wherein, In the first direction, the length of the first connection structure is greater than the length of the third part of the third auxiliary line.

11. The display panel of claim 5, wherein, The virtual pixel comprises a virtual pixel anode and a virtual pixel circuit; The virtual pixel circuit comprises a plurality of virtual signal lines extending along the first direction and a plurality of virtual control lines extending along the second direction.

12. The display panel of claim 11, wherein, The virtual signal lines are multiplexed as at least part of the first auxiliary line.

13. The display panel of claim 5, wherein, The display area comprises a first display area and a second display area; In the second direction, the second display area is located between the first non-display area and the second non-display area; In the second direction, the minimum length of the second display area is the same as the minimum length of the invalid area.

14. The display panel of claim 13, wherein, The display area comprises a first display area and a second display area; In the second direction, the second display area is located between the first non-display area and the second non-display area; In the second direction, the minimum length of the second display area is greater than the minimum length of the invalid area.

15. The display panel of claim 13, wherein, The first display area comprises a first pixel, and the second display area comprises a second pixel; The area of the first pixel is greater than the area of the second pixel.

16. The display panel of claim 1, wherein, Further comprising an upper bezel area and a lower bezel area located on opposite sides of the display area respectively, and the lower bezel area comprises a bending area; The first auxiliary line comprises a fourth part located in the upper bezel area, and the fourth part is electrically connected with the first part; The second auxiliary line comprises a fifth part located in the upper bezel area, and the fifth part is electrically connected with the second part. 17.The display panel of claim 1, wherein, the display area comprises a plurality of pixels, and each of the pixels comprises a pixel circuit; the pixel circuit comprises a first voltage signal line in the first metal layer and a second voltage signal line in the second metal layer; the first portion is in the third metal layer; in a direction perpendicular to the substrate, the first portion at least partially overlaps the first voltage signal line, and the first portion at least partially overlaps the second voltage signal line. 18.The display panel of claim 17, wherein, the first voltage signal line is one of a positive power voltage signal line, a negative power voltage signal line, an initialization signal line, an anode reset signal line, or a reverse bias voltage signal line; the second voltage signal line is one of a positive power voltage signal line, a negative power voltage signal line, an initialization signal line, an anode reset signal line, or a reverse bias voltage signal line. 19.The display panel of claim 18, wherein, in a direction perpendicular to the substrate, the third metal layer is between the first metal layer and the second metal layer. 20.The display panel of claim 1, wherein, the display area comprises a plurality of pixel circuits, and the pixel circuits comprise a first edge pixel circuit adjacent to the first non-display area and a second edge pixel circuit adjacent to the second non-display area; the first closed line is electrically connected to the first edge pixel circuit, and the second closed line is electrically connected to the second edge pixel circuit. 21.The display panel of claim 1, wherein, the signal lines comprise one or more of a data line, a driving voltage signal line; and / or, the signal lines comprise one or more of a gate control signal line, an emission control signal line, a reset voltage signal line, an initialization voltage signal line, or a reverse bias voltage signal line.

22. A display device comprising: the display device comprises the display panel of any one of claims 1-21.

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