Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a first display area and a second display area. The display panel further comprises pixel circuits used for driving the light-emitting elements to emit light, and the distribution density of the pixel circuits in the first display area is smaller than that of the pixel circuits in the second display area. The first display area comprises a compensation structure, and the compensation structure comprises at least one compensation film layer; the first display area further comprises a plurality of first light-emitting elements, and each first light-emitting element comprises an anode; the anodes and the compensation structures are at least partially overlapped in the first direction, and the first direction is perpendicular to the plane where the substrate in the display panel is located. According to the technical scheme, the heat dissipation problem caused by small distribution density of the pixel circuits in the first display area is compensated through the compensation structure, and the heat dissipation capacity of the first display area is improved; the anodes and the compensation structures are at least partially overlapped, so that the light-transmitting effect of the first display area is not influenced by the arrangement of the compensation structures, and the light-transmitting effect of the first display area is good.

Description

[0001] This application is a divisional application with the application date of August 6, 2021, application number 202110902195.9, and the name of the invention being “A display panel and display device”. Technical Field

[0002] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0003] With the development of electronic products such as mobile phones, including display panels and cameras, people's requirements for these products are no longer limited to basic communication functions, but also turn to design, artistry and good visual experience. For example, electronic products with a high screen-to-body ratio are becoming more and more popular. Among them, full screen has become an important development direction for electronic products. The earpiece, ambient light sensor, proximity light sensor, etc. have been successfully hidden under the screen, but the front camera is difficult to hide.

[0004] In order to realize a truly full screen, the front camera can be set under the screen. However, there are many problems that need to be solved in a full screen with the front camera set under the screen. Summary of the invention

[0005] The present invention provides a display panel and a display device to solve the problem of arranging a front camera under the full screen in the prior art.

[0006] In a first aspect, an embodiment of the present invention provides a display panel, including a first display area and a second display area;

[0007] The display panel further includes a pixel circuit, and the pixel circuit is used to drive the light-emitting element to emit light; wherein the distribution density of the pixel circuit in the first display area is less than the distribution density of the pixel circuit in the second display area;

[0008] The first display area includes a compensation structure, and the compensation structure includes at least one compensation film layer;

[0009] The first display area further includes a plurality of first light-emitting elements, each of which includes an anode. Along a first direction, the anode at least partially overlaps with the compensation structure. The display panel further includes a substrate, and the first direction is perpendicular to a plane where the substrate is located.

[0010] In a second aspect, an embodiment of the present invention further provides a display device, comprising the display panel described in the first aspect.

[0011] In the display panel provided by the embodiment of the present invention, since the distribution density of pixel circuits in the first display area is less than the distribution density of pixel circuits in the second display area, a compensation structure is added in the first display area, and the compensation structure includes at least one compensation film layer. The heat dissipation capacity of the first display area is improved by the compensation structure, thereby ensuring that the first display area has a good heat dissipation effect; further, along the direction perpendicular to the plane where the substrate is located, the anode of the light-emitting element in the first display area at least partially overlaps with the compensation structure, that is, at least part of the compensation structure is covered by the anode, thereby ensuring that the setting of the compensation structure will not affect the light transmission effect of the first display area, thereby ensuring that the first display area has a good light transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a display panel in the prior art;

[0013] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A;

[0014] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the B-B' direction;

[0015] Figure 4 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0016] Figure 5 for Figure 4 A schematic diagram of an enlarged structure at C in the middle;

[0017] Figure 6 for Figure 5 A schematic diagram of a cross-sectional structure along the D-D' direction;

[0018] Figure 7 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction;

[0019] Figure 8 for Figure 4 Another enlarged structural diagram at C in the middle;

[0020] Fig. 9 for Figure 8 A schematic diagram of a cross-sectional structure along the E-E' direction;

[0021] Fig.10 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0022] Fig.11 for Fig.10 The enlarged structural diagram at F in the middle;

[0023] Fig.12for Fig.11 A schematic diagram of a cross-sectional structure along the G-G' direction;

[0024] Fig.13 for Figure 4 Another enlarged structural diagram at C in the middle;

[0025] Fig.14 for Fig.13 A schematic diagram of a cross-sectional structure along the H-H' direction;

[0026] Fig.15 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction;

[0027] Fig.16 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction;

[0028] Fig.17 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction;

[0029] Fig.18 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction;

[0030] Fig.19 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction;

[0031] Fig. 20 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction;

[0032] Fig.21 for Fig.13 A schematic diagram of a cross-sectional structure;

[0033] Fig. 22 for Fig.13 Another cross-sectional structural schematic diagram of ;

[0034] Fig.23 A schematic diagram of the structure of a display device provided by an embodiment of the present invention;

[0035] Fig.24 A schematic cross-sectional structure diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention, Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A. Figure 3 for Figure 2 The schematic diagram of the cross-sectional structure along the B-B' direction is as follows: Figure 1-3 As shown, the display panel provided by the embodiment of the present invention includes a first display area 11' and a second display area 12', wherein the first display area 11' can be reused as a sensor reserved area, such as a camera reserved area. Therefore, in addition to having a normal display function, the first display area 11' must also have a good light transmission effect to ensure that external light can pass through the first display area 11' into the camera. Since the pixel circuit is the main shading element in the display area of ​​the display panel, in order to ensure a good light transmission effect in the first display area 11', the distribution density of the pixel circuit 13' in the first display area 11' needs to be less than the distribution density of the pixel circuit 13' in the second display area 12', such as Figure 3 As shown, Figure 3 The description is made by taking the first display area 11 ′ without a pixel circuit as an example.

[0038] However, the inventors further discovered that when the distribution density of pixel circuits in the first display area 11' needs to be smaller than the distribution density of pixel circuits in the second display area 12', the first display area 11' has a problem of poor heat dissipation. The poor heat dissipation may affect the light-emitting effect of the light-emitting elements in the first display area 11' and affect the normal display of the display panel.

[0039] Based on the above technical problems, in the embodiment of the present invention, a display panel is provided including a first display area and a second display area; the display panel also includes a pixel circuit, the pixel circuit is used to drive the light-emitting element to emit light; wherein the distribution density of the pixel circuit in the first display area is less than the distribution density of the pixel circuit in the second display area; the first display area includes a compensation structure, the compensation structure includes at least one compensation film layer; the first display area also includes a plurality of first light-emitting elements, the first light-emitting element includes an anode; along the first direction, the anode and the compensation structure at least partially overlap; the display panel also includes a substrate, the first direction is perpendicular to the plane where the substrate is located. By adopting the above technical solution, the compensation structure is used to compensate for the heat dissipation problem caused by the small distribution density of the pixel circuit in the first display area, thereby improving the heat dissipation capacity of the first display area; and along the direction perpendicular to the plane where the substrate is located, the anode of the light-emitting element in the first display area at least partially overlaps with the compensation structure, that is, the anode covers at least part of the compensation structure, thereby ensuring that the setting of the compensation structure will not affect the light transmission effect of the first display area, thereby ensuring that the light transmission effect of the first display area is good.

[0040] The above is the core idea of ​​the present invention. The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Figure 4 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention, Figure 5 for Figure 4 The enlarged structural diagram at C in the middle, Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the D-D' direction, combined with Figure 4 , Figure 5 and Figure 6 As shown, the display panel 10 provided in the embodiment of the present invention includes a first display area 11 and a second display area 12; the display panel 10 also includes a pixel circuit 13, and the pixel circuit 13 is used to drive the light-emitting element to emit light; wherein the distribution density of the pixel circuit 13 in the first display area 11 is less than the distribution density of the pixel circuit 13 in the second display area 12; the first display area 11 includes a compensation structure 15, and the compensation structure 15 includes at least one compensation film layer 15a; the first display area 11 also includes a plurality of first light-emitting elements 141, and the first light-emitting element 141 includes an anode 1411; along a first direction (the X direction shown in the figure), the anode 1411 at least partially overlaps with the compensation structure 15; the display panel 10 also includes a substrate 101, and the first direction is perpendicular to the plane where the substrate 101 is located.

[0042] Specifically, Figure 4-6As shown, the display panel provided in the embodiment of the present invention is suitable for a display device in which a sensor is arranged under the screen. The display panel includes a first display area 11 and a second display area 12. The first display area 11 can be reused as a setting area for the sensor, wherein the sensor can be a camera, an infrared sensor and other devices, which is not limited in the embodiment of the present invention.

[0043] Continue to refer Figure 4-6 Exemplarily, the display panel 10 further includes a pixel circuit 13, which is used to drive the light-emitting element in the display panel 10 to emit light. Specifically, the pixel circuit 13 may include a thin film transistor, or may include multiple thin film transistors and at least one storage capacitor, such as seven thin film transistors and one storage capacitor (7T1C). The embodiment of the present invention does not limit the specific structure of the pixel circuit 13. Figure 6 The pixel circuit 13 in FIG. 1 shows only one thin film transistor. Furthermore, since the pixel circuit 13 includes multiple metal film layers, the light transmittance of the metal film layers is poor. Therefore, when the first display area 11 is reused as the setting area of ​​the sensor, the distribution density of the pixel circuit 13 in the first display area 11 can be set to be smaller than the distribution density of the pixel circuit 13 in the second display area 12, so as to ensure that the light transmittance of the first display area 11 is good.

[0044] Furthermore, since the light-emitting elements in the display panel 10 generate heat during the light-emitting process, and the multi-layer metal film layer in the pixel circuit 13 has a good heat dissipation effect, the heat dissipation in the area with a large distribution density of the pixel circuit is good, while the heat dissipation in the area with a small distribution density of the pixel circuit is relatively poor, that is, the first display area 11 has a problem of poor heat dissipation due to the small distribution density of the pixel circuit. In the embodiment of the present invention, the first display area 11 is creatively arranged to include a compensation structure 15, and the compensation structure 15 includes at least one compensation film layer 15a. The compensation structure 15 compensates the heat dissipation capacity of the first display area 11 to ensure that the heat dissipation effect of the first display area 11 is good; and the compensation structure 15 compensates the heat dissipation capacity of the first display area 11 to ensure that the heat dissipation capacity of the first display area 11 and the second display area 12 are the same or similar, and the heat has the same or similar effects on the light-emitting elements in the first display area 11 and the light-emitting elements in the second display area 12, and the light-emitting effects of the light-emitting elements in the first display area 11 and the second display area 12 are the same or similar, and the display uniformity of the display panel is good.

[0045] Further, continuing with reference to FIG6 , the display panel also includes a substrate 101, and the compensation structure 15 is located on a side of the anode 1411 close to the substrate 101. Along a first direction (the X direction as shown in the figure), the anode 1411 and the compensation structure 15 at least partially overlap, that is, the anode 1411 at least partially covers the compensation structure 15, thereby ensuring that the setting of the compensation structure 15 will not affect the light transmittance effect of the first display area 11, thereby ensuring that the light transmittance effect of the first display area is good.

[0046] In summary, the display panel provided by the embodiment of the present invention compensates for the heat dissipation problem in the first display area caused by the low distribution density of the pixel circuit through the compensation structure, thereby improving the heat dissipation capacity of the first display area; and along the direction perpendicular to the plane where the substrate is located, the anode of the light-emitting element in the first display area at least partially overlaps with the compensation structure, that is, the anode covers at least part of the compensation structure, ensuring that the setting of the compensation structure will not affect the light transmission effect of the first display area, thereby ensuring that the light transmission effect of the first display area is good.

[0047] Based on the above embodiment, there are many different implementations of making the distribution density of pixel circuits in the first display area smaller than the distribution density of pixel circuits in the second display area. Two different implementations are described below as examples.

[0048] First, an example is given in which the pixel circuit is disposed in the second display area.

[0049] Continue to refer Figure 5 and Figure 6 As shown, the pixel circuit 13 is disposed in the second display area 12 , and the first display area 11 is not provided with the pixel circuit 13 , thus ensuring that the first display area 11 has a good light transmission effect.

[0050] On the basis of the above embodiments, when the pixel circuit is arranged in the second display area, the compensation structure may include a variety of different arrangement modes. The specific arrangement mode of the compensation structure is described below.

[0051] Continue to refer Figure 6 As shown, as a feasible implementation, the compensation structure 15 is in a suspended potential.

[0052] Exemplarily, the potential suspension of the compensation structure 15 can be understood as the compensation structure 15 is not connected to the circuit elements, and no voltage signal is applied to the compensation structure 15 without considering signal interference. The heat dissipation problem caused by the small distribution density of the pixel circuit in the first display area is compensated by setting the compensation structure 15 with potential suspension, thereby improving the heat dissipation capacity of the first display area. Furthermore, since the potential of the compensation structure 15 is suspended and not connected to the circuit elements, the setting method of the compensation structure 15 is simple; and since the potential of the compensation structure 15 is suspended, the setting of the compensation structure 15 will not interfere with the normal light-emitting display of the first light-emitting element 141, thereby ensuring that the first light-emitting element 141 in the first display area 11 has a good display effect.

[0053] Figure 7 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction, Figure 8 for Figure 4 Another enlarged structural diagram at C in the middle, Fig. 9 for Figure 8 A schematic diagram of a cross-sectional structure along the E-E' direction, combined with Figure 7 , Figure 8 and Fig. 9 As shown, as another feasible implementation, a display signal is transmitted in the compensation structure 15 .

[0054] Exemplarily, the display signal transmitted in the compensation structure 15 can be understood as the compensation structure 15 being located on the transmission path of the display signal, and the display signal required for the normal display of the first light-emitting element 141 is transmitted to the first light-emitting element 141 through the compensation structure 15. More specifically, the display signal required for the normal display of the first light-emitting element 141 is transmitted to the anode 1411 of the first light-emitting element 141 through the compensation structure 15, so as to ensure the normal display of the first light-emitting element 141. In other words, the compensation structure 15 has the functions of compensating for heat dissipation and transmitting display signals. Further, since the anode 1411 at least partially covers the compensation structure 15 along the first direction (the X direction as shown in the figure), the transmission of the display signal to the first light-emitting element 141 through the compensation structure 15 will not affect the light transmittance of the first display area 11, and the good light transmittance of the first display area 11 and the normal transmission of the display signal are taken into account. Further, the compensation structure 15 may include a metal material. Since the resistivity of the metal material is relatively low, the display signal loss can be ensured to be relatively low by transmitting the display signal in the compensation structure 15, and the display effect of the display panel is ensured to be good.

[0055] The following describes how the compensation structure 15 specifically transmits the display signal.

[0056] Continue to refer Figure 6-Figure 9As shown, the display panel 10 also includes a transparent signal transmission line 16, which is located between the film layer where the anode 1411 is located and the film layer where the compensation structure 15 is located; the pixel circuit 13 is electrically connected to the anode 1411 via the transparent signal transmission line 16 and the compensation structure 15.

[0057] Exemplarily, since the pixel circuit 13 is arranged in the second display area 12, it is necessary to connect the first light-emitting element 141 located in the first display area 11 and the pixel circuit 13 located in the second display area 12 through a signal transmission line. Further, in order to ensure a good light transmittance effect of the first display area 11, the electrical connection relationship between the first light-emitting element 141 and the pixel circuit 13 is realized through a transparent signal transmission line 16 and a compensation structure 15 in the embodiment of the present invention. Further, the transparent signal transmission line 16 can be indium tin oxide (ITO) to ensure good light transmittance and conductivity. Further, since the compensation structure 15 can include a metal material, and the resistivity of the metal material is relatively small, compared with only using the transparent signal transmission line 16 to transmit the display signal, the display signal is transmitted by combining the transparent signal transmission line 16 with the compensation structure 15, which can ensure that the display signal loss is small and the display effect of the display panel is good.

[0058] Specifically, the compensation structure 15 transmits a display signal, and the compensation structure 15 may transmit the display signal to the anode 1411 located directly above it, that is, along the first direction (the X direction as shown in the figure), the compensation structure 15 transmits the display signal to the anode covering itself; or the compensation structure 15 transmits the display signal to the anode 1411 not located directly above it, that is, along the first direction (the X direction as shown in the figure), the compensation structure 15 transmits the display signal to the anode not covering itself, which are explained separately below.

[0059] First, an example of the compensation structure transmitting a display signal to an anode located directly above the compensation structure is used for explanation.

[0060] Continue to refer Figure 5 and Figure 7 As shown, the first display area 11 includes a first sub-display area 111 close to the second display area 12 ; the pixel circuit 13 is electrically connected to the anode 1411 of the light-emitting element in the first sub-display area 111 via the transparent signal transmission line 16 and the compensation structure 15 .

[0061] like Figure 5 and Figure 7As shown, the transparent signal line 16 includes a first transparent signal line 161. The display signal provided by the pixel circuit 13 is transmitted to the anode 1411 via the first transparent signal line 161, the compensation structure 15 and the first transparent signal line 161 in sequence. That is, the display signal is transmitted in a manner of combining the transparent signal transmission line 16 with the compensation structure 15, which can ensure that the display signal loss is small and the display effect of the display panel is good.

[0062] It should be noted that Figure 7 In the example, the display signal is transmitted to the anode 1411 through the first transparent signal line 161, the compensation structure 15 and the first transparent signal line 161 in sequence. The compensation structure 15 can also be directly electrically connected to the anode 1411, that is, the display signal is transmitted to the anode 1411 through the first transparent signal line 161 and the compensation structure 15 in sequence. The embodiment of the present invention does not limit this. Setting the display signal to be transmitted to the anode 1411 through the first transparent signal line 161, the compensation structure 15 and the first transparent signal line 161 in sequence can avoid the electrical connection between the anode 1411 and the compensation structure 15 through deep drilling, ensuring a simple drilling process; setting the display signal to be transmitted to the anode 1411 through the first transparent signal line 161 and the compensation structure 15 in sequence can reduce the number of drillings, ensuring a simple drilling process.

[0063] Continue to refer Figure 5 As shown, the first display area 11 may also include a second sub-display area 112, and the second sub-display area 112 is located on the side of the first sub-display area 111 away from the second display area 12. Correspondingly, the second transparent signal line 15 also includes a second transparent signal line 162, and the pixel circuit 13 can be electrically connected to the anode 1411 of the light-emitting element in the second sub-display area 112 via the second transparent signal transmission line 162 and the compensation structure 15, that is, the display signal is transmitted in a manner of combining the transparent signal transmission line 16 with the compensation structure 15, which can ensure that the display signal loss is small and the display effect of the display panel is good. Further, the display signal can be transmitted to the anode of the second sub-display area 112 in the same manner as the transmission of the display signal in the first sub-display area 111 through the second transparent signal line, the compensation structure and the second transparent signal line in sequence; it can also be that the compensation structure is directly electrically connected to the anode, that is, the display signal is transmitted to the anode in the second sub-display area in sequence through the second transparent signal line and the compensation structure. The corresponding technical effects can be referred to above and will not be repeated here.

[0064] Next, the transmission of a display signal from the compensation structure 15 to the anode 1411 which is not located directly above the compensation structure 15 is taken as an example for description.

[0065] Continue to refer Figure 8 and Fig. 9As shown, the first display area 11 includes a first sub-display area 111 close to the second display area 12 and a second sub-display area 112 located on the side of the first sub-display area 111 away from the second display area 12; the transparent signal transmission line 16 includes a first transparent signal transmission line 161 and a second transparent signal transmission line 162; the pixel circuit 13 is electrically connected to the anode 1411 of the light-emitting element 141 in the first sub-display area 111 via the first transparent signal transmission line 161; the pixel circuit 13 is electrically connected to the anode 1411 of the light-emitting element 141 in the second sub-display area 112 via the second transparent signal transmission line 162 and the compensation structure 15; and along the first direction (the X direction as shown in the figure), the anode 1411 of the light-emitting element 141 in the first sub-display area 111 at least partially overlaps with the compensation structure 15.

[0066] Generally speaking, the receiving position for receiving the display signal in the anode is generally located near the edge of the anode. Therefore, when a compensation structure is used to transmit the display signal to the anode directly above it, the length or area of ​​the compensation structure located on the display signal transmission path is limited. Therefore, the loss of the display signal during the transmission process reduced by the compensation structure is limited. Therefore, the embodiment of the present invention sets a compensation structure to transmit the display signal to the anode that is not directly above it.

[0067] Specifically, Figure 8 and Fig. 9 As shown, the transparent signal line 16 includes a first transparent signal line 161 and a second transparent signal line 162. The display signal provided by the pixel circuit 13 is transmitted to the anode 1411 of the first light-emitting element 141 located in the first sub-display area 111 via the first transparent signal line 161, that is, the compensation structure 15 located in the first sub-display area 111 does not participate in the display signal transmission of the first light-emitting element in the first sub-display area 111, thereby ensuring that the display signal transmission method of the first light-emitting element 141 located in the first sub-display area 111 is simple. Further, the pixel circuit 13 is electrically connected to the anode 1411 of the light-emitting element 141 in the second sub-display area 112 via the second transparent signal transmission line 162 and the compensation structure 15, that is, the compensation structure located in the first sub-display area 111 participates in the display signal transmission of the first light-emitting element in the second sub-display area 112, that is, the above-mentioned compensation structure 15 transmits the display signal to the anode 1411 that is not located directly above it. Figure 8 and Fig. 9As shown, the pixel circuit 13 is electrically connected to the anode 1411 of the light-emitting element 141 in the second sub-display area 112 via the second transparent signal transmission line 162 and the compensation structure 15, and most of the structures in the compensation structure 15 are located on the transmission path of the display signal. Since the compensation structure 15 can include metal materials, and the resistivity of metal materials is relatively small, compared with only using the transparent signal transmission line 16 to transmit the display signal, the display signal is transmitted in a manner combining the transparent signal transmission line 16 with the compensation structure 15, which can ensure that the display signal loss is small and the display effect of the display panel is good.

[0068] Furthermore, and along the first direction (the X direction as shown in the figure), the anode 1411 of the light-emitting element 141 in the first sub-display area 111 at least partially overlaps with the compensation structure 15, so that the compensation structure 15 located in the first sub-display area 111 can also take into account the heat dissipation function of the first sub-display area 111, thereby ensuring that the heat dissipation effect of the first sub-display area 111 is good.

[0069] In summary, the above embodiments illustrate how the compensation structure transmits display signals, that is, the compensation structure can transmit display signals to the anode located directly above it, and can also transmit display signals to the anode located directly above the device. Since the compensation structure can include metal materials, the display signal is transmitted in a manner combining a transparent signal transmission line with the compensation structure, which can ensure that the display signal loss is small and the display effect of the display panel is good.

[0070] It should be noted that Figure 5 and Figure 8 The example of one pixel circuit driving one light emitting element is used for explanation. It can also be understood that in the technical solution of the embodiment of the present invention, one pixel driving circuit can also drive at least two light emitting elements, and the embodiment of the present invention does not limit this.

[0071] Based on the above embodiments, continue to refer to Figure 5 and Figure 8 As shown, the second display area 12 includes a third sub-display area 121 and a fourth sub-display area 122; the third sub-display area 121 surrounds at least part of the first display area 11, and the fourth sub-display area 122 surrounds at least part of the third sub-display area 121; the third sub-display area 121 includes a plurality of second light-emitting elements 142, and the fourth sub-display area 122 includes a plurality of third light-emitting elements 143; the pixel circuit 13 includes a first pixel circuit 131 and a second pixel circuit 132, the first pixel circuit 131 is located in the third sub-display area 121, and the second pixel circuit 132 is located in the fourth sub-display area 122; the first pixel circuit 131 is used to drive the second light-emitting element 142 and the first light-emitting element 141, and the second pixel circuit 132 is used to drive the third light-emitting element 143.

[0072] For example, Figure 5 and Figure 8 As shown, the second display area 12 includes a third sub-display area 121 and a fourth sub-display area 122; the third sub-display area 121 surrounds at least part of the first display area 11, and the fourth sub-display area 122 surrounds at least part of the third sub-display area 121. Here, the third sub-display area 121 can be understood as a transition display area, and the fourth sub-display area 122 can be understood as a normal display area. Generally speaking, the first display area 11 can be used as a transparent display area, that is, the area corresponding to the first display area 11 can be correspondingly provided with some photosensitive sensors, such as a camera, so the first display area 11 needs to have good light transmittance, for example, the distribution density of the pixel circuits in the first display area can be set to be relatively small. The transitional display area is a transitional area between the normal display area and the transparent display area. The distribution density of the pixel circuits in the transitional display area may be between the distribution density of the pixel circuits in the first display area and the distribution density of the pixel circuits in the normal display area, that is, the distribution density of the pixel circuits in the third sub-display area 121 is greater than the distribution density of the pixel circuits in the first display area 11, and less than the distribution density of the pixel circuits in the fourth sub-display area 122; and / or, the distribution density of the light-emitting elements in the transitional display area may be between the distribution density of the light-emitting elements in the transparent display area and the distribution density of the light-emitting elements in the normal display area, that is, the distribution density of the light-emitting elements in the third sub-display area 121 is greater than the distribution density of the light-emitting elements in the first display area 11, and less than the distribution density of the light-emitting elements in the fourth sub-display area 122. In this way, the display effect between the normal display area and the transparent display area can be ensured to transition normally, avoiding obvious display differences. Figure 5 and Figure 8 For example, the distribution density of pixel circuits in the third sub-display area 121 is greater than the distribution density of pixel circuits in the first display area 11 and equal to the distribution density of pixel circuits in the fourth sub-display area 122, and the distribution density of light-emitting elements in the third sub-display area 121 is greater than the distribution density of light-emitting elements in the first display area 11 and less than the distribution density of light-emitting elements in the fourth sub-display area 122.

[0073] Further, the first pixel circuit 131 is used to drive the second light emitting element 142 and the first light emitting element 141, which can be understood as part of the first pixel circuit 131 is used to drive the first light emitting element 141, and the rest of the first pixel circuit 131 is used to drive the second light emitting element 142, such as Figure 5 and Figure 8As shown; or, the first pixel circuit 131 is used to drive the second light-emitting element 142 and the first light-emitting element 141 (not shown in the figure) at the same time, that is, a first pixel circuit 131 is used to drive multiple light-emitting elements. The embodiment of the present invention does not limit the correspondence between the pixel circuit and the light-emitting element. By setting all the pixel circuits in the second display rather than the non-display area, it is ensured that the second display area has a good heat dissipation effect, the first display area is guaranteed to display normally, and at the same time, the screen-to-body ratio of the display panel can be large, and a good display effect can be guaranteed; further, by adding a compensation structure in the first display area, the heat dissipation capacity of the first display area is compensated by the compensation structure, so as to ensure a good heat dissipation effect and a good light transmission effect of the first display area.

[0074] In summary, the above embodiments are all described by taking the pixel circuit being arranged in the second display area as an example. It is understandable that the pixel circuit may also include other arrangements. The following describes two feasible arrangements as examples.

[0075] As a feasible implementation method, Fig.10 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention, Fig.11 for Fig.10 The enlarged structural diagram at F in the middle, Fig.12 for Fig.11 A schematic diagram of a cross-sectional structure along the G-G' direction, combined with Fig.10 , Fig.11 and Fig.12 As shown, the display panel 10 provided in the embodiment of the present invention also includes a non-display area 14, and the non-display area 14 surrounds at least part of the second display area 12; the second display area 12 includes a plurality of fourth light-emitting elements 144; the pixel circuit 13 includes a third pixel circuit 133 and a fourth pixel circuit 134, the third pixel circuit 133 is used to drive the first light-emitting element 141 to emit light, and the fourth pixel circuit 134 is used to drive the fourth light-emitting element 144 to emit light; wherein, at least part of the third pixel circuit 133 is arranged in the non-display area 17, and the fourth pixel circuit 134 is arranged in the second display area 12.

[0076] For example, different from the above-mentioned solution in which all pixel circuits are arranged in the display area, the embodiment of the present invention can also arrange part of the pixel circuits in the non-display area. Fig.11 and Fig.12As shown, the pixel circuit 13 may include a third pixel circuit 133 and a fourth pixel circuit 134, at least part of the third pixel circuit 133 is arranged in the non-display area 17, and the third pixel circuit 133 is used to drive the first light-emitting element 141, so as to ensure that the light-emitting elements in the first display area 11 and the second display area 12 can be driven independently, thereby preventing the fourth pixel circuit 134 located in the second display area 12 from driving the first light-emitting element 141 and the fourth light-emitting element 144 at the same time to affect the display resolution.

[0077] It should be noted that Fig.11 and Fig.12 The example of a third pixel circuit 133 driving two first light-emitting elements 141 at the same time is used for illustration but not limitation. It can be understood that the third pixel circuit 133 and the first light-emitting element 141 can be in a one-to-one correspondence or a one-to-many relationship, and the embodiment of the present invention is not limited to this.

[0078] As another possible real-time method, Fig.13 for Figure 4 Another enlarged structural diagram at C in the middle, Fig.14 for Fig.13 A schematic diagram of a cross-sectional structure along the H-H' direction, combined with Fig.13 and Fig.14 As shown, the pixel circuit 13 includes a fifth pixel circuit 135 and a sixth pixel circuit 136, the fifth pixel circuit 135 is located in the first display area 11, and the sixth pixel circuit 136 is located in the second display area 12; the second display area 12 also includes a plurality of fourth light-emitting elements 144; the fifth pixel circuit 135 is used to drive at least two first light-emitting elements 141, and the sixth pixel circuit 136 is used to drive the fourth light-emitting element 144.

[0079] For example, different from the above-mentioned solution in which all pixel circuits are arranged in the second display area or part of the pixel circuits are arranged in the non-display area, the embodiment of the present invention can also arrange part of the pixel circuits in the first display area. Fig.13 and Fig.14 As shown, the pixel circuit 13 may include a fifth pixel circuit 135 and a sixth pixel circuit 136. The fifth pixel circuit 135 is arranged in the first display area 11, and is used to drive the first light-emitting element 141 located in the first display area 1 to emit light; the sixth pixel circuit 136 is arranged in the second display area 12, and is used to drive the fourth light-emitting element 144 located in the second display area 12 to emit light, that is, the pixel circuits are all used to drive the light-emitting elements arranged in the same area to emit light, and there is no need to set a transparent signal line 16 with a longer routing length to achieve electrical connection between the pixel circuit and the light-emitting element, thereby ensuring that the corresponding relationship between the pixel circuit and the light-emitting element is simple, and the corresponding connection relationship is simple.

[0080] It should also be noted that Fig.13 and Fig.14 The example of a fifth pixel circuit 135 driving two first light-emitting elements 141 at the same time is used for illustration but not limitation. It can be understood that the fifth pixel circuit 135 and the first light-emitting element 141 can also have other corresponding relationships. The embodiment of the present invention does not limit this, as long as the first display area has a good light-transmitting effect.

[0081] Continue to refer Fig.14 As shown, the first light-emitting element 141 includes a first sub-light-emitting element 141a. Along the first direction (the X direction shown in the figure), the first sub-light-emitting element 141a does not overlap with the fifth pixel circuit 135, and the first sub-light-emitting element 141a does not overlap with the connecting line (not shown in the figure) between two adjacent fifth pixel circuits; along the first direction, the anode of the first sub-light-emitting element 141a at least partially overlaps with the compensation structure 15.

[0082] Continue to refer Fig.14 As shown, when the fifth pixel circuit 135 is provided in the first display area 11, along the first direction (the X direction as shown in the figure), part of the first light-emitting element 141 may at least partially overlap with the fifth pixel circuit 135, and the remaining part of the first light-emitting element 141 may at least partially overlap with the compensation structure 15, that is, the vertical projection of part of the first light-emitting element 141 on the plane where the substrate is located is at least partially overlapped with the vertical projection of the fifth pixel circuit 135 on the plane where the substrate is located, and heat is dissipated through the fifth pixel circuit 135, and the vertical projection of the remaining part of the first light-emitting element 141 on the plane where the substrate is located is at least partially overlapped with the vertical projection of the compensation structure 15 on the plane where the substrate is located, and heat dissipation compensation is performed through the compensation structure 15, thereby ensuring that the first display area 11 has a good heat dissipation effect, and the heat dissipation of different first light-emitting elements 141 is balanced, thereby ensuring that the first display area 11 has good display uniformity.

[0083] Furthermore, since a connecting line is arranged between two adjacent fifth pixel circuits 135, such as a scanning signal line, a data signal line or a voltage signal line connected to two adjacent fifth pixel circuits 135, along the first direction (the X direction as shown in the figure), the connecting line between the first sub-light-emitting element 141a and the two adjacent fifth pixel circuits does not overlap, that is, no metal routing is arranged under the first sub-light-emitting element 141a. At this time, it can be arranged that the anode of the first sub-light-emitting element 141a at least partially overlaps with the compensation structure 15 along the first direction, and the compensation structure 15 is used to compensate for the heat dissipation of the first sub-light-emitting element 141a, thereby ensuring that the heat dissipation effect of the first sub-light-emitting element 141a is good.

[0084] In summary, the above embodiments illustrate the arrangement of the pixel circuit and the compensation structure through a variety of different implementation methods. Next, the arrangement of the compensation structure will be described from other aspects.

[0085] Continue to refer Figure 6 As shown, along the first direction (the X direction as shown in the figure), the anode 1411 covers the compensation structure 15, that is, the vertical projection of the anode 1411 on the plane where the substrate 101 is located covers the vertical projection of the compensation structure 15 on the plane where the substrate 101 is located, so as to ensure that the setting of the compensation structure 15 will not affect the light transmission effect of the first display area 11, and ensure that the light transmission effect of the first display area 11 is good.

[0086] Based on the above embodiment, the compensation film layer in the compensation structure may include a metal compensation film layer. Since the metal film layer has a good heat dissipation effect, the compensation film layer is provided to include a metal compensation film layer to ensure that the compensation structure can fully dissipate heat for the first display area and ensure that the first display area has a good heat dissipation effect.

[0087] On this basis, the pixel circuit may include at least one side of the metal layer, and the metal compensation film layer in the compensation structure may be arranged on the same layer as the metal layer in the pixel circuit, and be prepared using the same material and the same process, thereby ensuring that the setting method and preparation process of the compensation structure are simple, and that the film layer structure of the display panel is simple.

[0088] The specific film layer structure of the compensation structure is described below.

[0089] Fig.15 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction is shown in FIG. Fig.15 As shown, the pixel circuit 13 at least includes a first metal layer M1 and a second metal layer M2. The second metal layer M2 is located on a side of the first metal layer M1 away from the substrate 101. The metal compensation film layer is disposed on the same layer as the second metal layer M2.

[0090] Exemplarily, the pixel circuit 13 may include multiple metal film layers, such as a gate metal layer and a source-drain metal layer, the gate metal layer is provided with a gate in the pixel circuit, the source-drain metal layer is provided with a source and a drain in the pixel circuit, the first metal layer M1 in the embodiment of the present invention may be a gate metal layer, and the second metal layer M2 may be a source-drain metal layer. The metal compensation film layer in the compensation structure 15 is provided in the same layer as the second metal layer M2, and further, the same material may be used to prepare the same process, so as to ensure that the compensation structure 15 is provided in a simple manner, the preparation process is simple, and the film layer structure of the display panel is simple.

[0091] For further information, please refer to Fig.15As shown, the second metal layer M2 is located close to the metal layer on the anode side of the light-emitting element. Setting the metal compensation film layer in the compensation structure 15 and the second metal layer M2 on the same layer can also ensure that the distance between the metal compensation film layer and the performance 1411 in the first light-emitting element 141 is short, ensuring that the metal compensation film layer can have a good heat dissipation compensation effect on the heat generated during the anode light-emitting process, and ensuring that the first light-emitting element and the first display area have a good heat dissipation effect.

[0092] Fig.16 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction is shown in FIG. Fig.16 As shown, 1 at least one compensation film layer 15a includes a first compensation film layer 151a and a second compensation film layer 152a, and the second compensation film layer 152a is located on a side of the first compensation film layer 151a away from the substrate 101; the pixel circuit 13 includes at least a first metal layer M1 and a second metal layer M2, and the second metal layer M2 is located on a side of the first metal layer M1 away from the substrate 101; the first compensation film layer 151a is arranged on the same layer as the first metal layer M1, and the second compensation film layer 152a is arranged on the same layer as the second metal layer M2.

[0093] Exemplarily, the compensation structure 15 may include a plurality of compensation film layers 15a, such as Fig.16 As shown, the compensation film layer 15a includes a first compensation film layer 151a and a second compensation film layer 152a stacked along a first direction (the X direction shown in the figure). The multi-layered compensation film layer 15a simultaneously performs heat dissipation compensation on the first display area 11 to ensure a good heat dissipation compensation effect.

[0094] Furthermore, the pixel circuit 13 may include multiple metal film layers, such as a gate metal layer and a source-drain metal layer, the gate metal layer is provided with a gate in the pixel circuit, the source-drain metal layer is provided with a source and a drain in the pixel circuit, the first metal layer M1 in the embodiment of the present invention may be a gate metal layer, and the second metal layer M2 may be a source-drain metal layer. The first compensation film layer 151a in the compensation structure 15 is provided in the same layer as the first metal layer M1, and the second compensation film layer 152a is provided in the same layer as the second metal layer M2, to ensure that the film layer in the compensation structure 15 and the corresponding film layer in the pixel circuit are prepared by using the same material and the same process, to ensure that the setting method of the compensation structure 15 is simple, the preparation process is simple, and the film layer structure of the display panel is simple.

[0095] Fig.17 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction is shown in FIG. Fig.17As shown, at least one compensation film layer 15a also includes a third compensation film layer 153a, and the third compensation film layer 153a is located between the first compensation film layer 151a and the second compensation film layer 152a; the pixel circuit 13 also includes a capacitor substrate layer MC, and the capacitor substrate layer MC is located between the first metal layer M1 and the second metal layer M2; the third compensation film layer 153a and the capacitor substrate layer MC are arranged on the same layer.

[0096] Exemplarily, the compensation structure 15 may include a plurality of compensation film layers 15a, such as Fig.17 As shown, the compensation film layer 15a may further include a third compensation film layer 153a. Along the first direction (the X direction as shown in the figure), the first compensation film layer 151a, the second compensation film layer 152a and the third compensation film layer 153a are at least partially overlapped. The compensation film layer 15a arranged in a multi-layer stack simultaneously performs heat dissipation compensation on the first display area 11, thereby ensuring a good heat dissipation compensation effect.

[0097] Furthermore, the pixel circuit 13 may include multiple metal film layers, such as Fig.17 As shown, the pixel circuit 13 may further include a capacitor substrate layer MC, and along the first direction (the X direction shown in the figure), the capacitor substrate layer MC is located between the first metal layer M1 and the second metal layer M2. One of the substrates of the storage capacitor in the pixel circuit is arranged in the capacitor substrate layer MC, and one of the capacitor substrates in the capacitor substrate layer MC forms a storage capacitor with another capacitor substrate in the first metal layer M1, which is used to maintain the gate potential of the driving transistor in the pixel circuit, for example. Furthermore, the third compensation film layer 153a in the compensation structure 15 is arranged in the same layer as the capacitor substrate layer MC, and is prepared by the same material and the same process, so as to ensure that the setting method of the compensation structure 15 is simple, the preparation process is simple, and the film layer structure of the display panel is simple.

[0098] Fig.18 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction is shown in FIG. Fig.18 As shown, at least one side compensation film layer 15a also includes a fourth compensation film layer 154a located on the side of the first compensation film layer 151a close to the substrate 101; the pixel circuit 13 also includes an active layer P1 located on the side of the first metal layer M1 close to the substrate; the fourth compensation film layer 154a is arranged on the same layer as the active layer P1.

[0099] Exemplarily, the compensation structure 15 may include a plurality of compensation film layers 15a, such as Fig.18As shown, the compensation film layer 15a may further include a fourth compensation film layer 154a. Along the first direction (the X direction as shown in the figure), the first compensation film layer 151a, the second compensation film layer 152a, the third compensation film layer 153a and the fourth compensation film layer 154a are at least partially overlapped. The compensation film layer 15a arranged in a multi-layer stack simultaneously performs heat dissipation compensation on the first display area 11 to ensure a good heat dissipation compensation effect.

[0100] Furthermore, the pixel circuit 13 may include multiple metal film layers, such as Fig.18 As shown, the pixel circuit 13 may further include an active layer P1, and along the first direction (the X direction shown in the figure), the active layer P1 is located on the side of the first metal layer M1 close to the substrate 101. The active layer in the pixel circuit is arranged in the active layer P1. Furthermore, the active layer P1 may be made of polysilicon material, for example. Since the polysilicon material has good heat dissipation capability, the fourth compensation film layer 154a in the compensation structure 15 is arranged in the same layer as the active layer P1, and is prepared by the same material and the same process. On the basis of ensuring that the arrangement method of the compensation structure 15 is simple, the preparation process is simple, and the film layer structure of the display panel is simple, it can also be ensured that the heat dissipation capability of the compensation structure 15 is strong.

[0101] Fig.19 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction is shown in FIG. Fig.19 As shown, the second compensation film layer 152a is electrically connected to the first supplementary film layer 151a through a via; and / or, the second compensation film layer 152a is electrically connected to the third compensation film layer 153a through a via; and / or, the second compensation film layer 151a is electrically connected to the fourth compensation film layer 154a through a via.

[0102] Fig.19 Only the second compensation film layer 152a and the third compensation film layer 153a are electrically connected through via holes as an example for description. By providing at least two layers of compensation film layers electrically connected through via holes, it is ensured that the heat generated by the first display area can be transmitted in the first direction (the X direction as shown in the figure), the heat dissipation capacity and heat dissipation uniformity of the compensation structure are increased, and the heat dissipation effect of the first display area is ensured to be good.

[0103] Exemplarily, taking the 7T1C pixel circuit as an example, in the pixel circuit, there are connecting vias between the second metal layer M2 and the first metal layer M1, for example, the drain of the initialization transistor and the gate of the driving transistor are electrically connected through the connecting via between the second metal layer M2 and the first metal layer M1; at the same time, there are connecting vias between the second metal layer M2 and the capacitor substrate layer MC, for example, the drain of the initialization transistor and the storage capacitor are electrically connected through the connecting via between the second metal layer M2 and the capacitor substrate layer MC; at the same time, there are also connecting vias between the second metal layer M2 and the active layer P1, for example, the source and drain of the initialization transistor are electrically connected to the active layer through the connecting vias between the second metal layer M2 and the active layer P1. Therefore, the second compensation film layer 152a is electrically connected to the first supplementary film layer 151a through a via; and / or the second compensation film layer 152a is electrically connected to the third compensation film layer 153a through a via; and / or the second compensation film layer 151a is electrically connected to the fourth compensation film layer 154a through a via, which can be prepared simultaneously with the connecting vias between different film layers in the pixel circuit, ensuring that the process of connecting different compensation film layers in the compensation structure through vias is simple.

[0104] In summary, the above embodiments illustrate the film layer arrangement of the compensation structure in a variety of feasible implementations. Next, the arrangement of the compensation structure is described from the relationship between the compensation structure and the pixel opening.

[0105] Fig. 20 for Figure 5 Another schematic diagram of the cross-sectional structure along the D-D' direction is shown in FIG. Fig. 20 As shown, the first display area 11 includes a first display opening area 181 . Along a first direction (the X direction shown in the figure), the first display opening area 181 at least partially overlaps with the compensation structure 15 .

[0106] like Fig. 20As shown, the first display area 11 includes a first display opening area 181, and the second display area 12 includes a second display opening area 182. The light-emitting material in the light-emitting element can be correspondingly arranged in the display opening area, so the first display opening area 181 corresponds to the light-emitting area of ​​the light-emitting element in the first display area 11, and the second display opening area 182 corresponds to the light-emitting area of ​​the light-emitting element in the second display area 12. Since the pixel circuit 13 is correspondingly arranged below the second display opening area 182, and the pixel circuit is not arranged below the first display opening area 181, there is a difference in the film layer structure below the first display opening area 181 and the film layer structure below the second display area 182. For a certain observation position, there is an optical path difference between the light emitted from the light-emitting area corresponding to the first display opening area 181 and the light emitted from the light-emitting area corresponding to the second display opening area 182, resulting in display differences. Therefore, the embodiment of the present invention creatively arranges that along the first direction (the X direction as shown in the figure), the first display opening area 181 and the compensation structure 15 at least partially overlap, and the difference between the film layer structure below the first display opening area 181 and the film layer structure below the second display area 182 is compensated by the compensation structure 15, thereby reducing or eliminating the optical path difference between the light emitted from the light-emitting area corresponding to the first display opening area 181 and the light emitted from the light-emitting area corresponding to the second display opening area 182, reducing the display difference between the first display opening area 181 and the second display opening area 182, and improving the display effect of the display panel.

[0107] For further information, please refer to Fig. 20 As shown, the second display area 12 includes a second display opening area 182 ; along the first direction (the X direction shown in the figure), the relative position relationship between the first display opening area 181 and the compensation structure 15 is the same as the relative position relationship between the second display opening area 182 and the pixel circuit 13 .

[0108] Exemplarily, the relative position relationship between the first display opening area 181 and the compensation structure 15 is the same as the relative position relationship between the second display opening area 182 and the pixel circuit 13. It can be understood that along the first direction, the overlap between the first display opening area 181 and the compensation structure 15 is the same as the overlap between the second display opening area 182 and the pixel circuit 13. For example, along the first direction, the first display opening area 181 covers the compensation structure 15, and the second display opening area 182 covers the pixel circuit 13. From the perspective of relative position relationship, it is ensured that the compensation structure 15 can reduce or eliminate the optical path difference between the light emitted from the light-emitting area corresponding to the first display opening area 181 and the light emitted from the light-emitting area corresponding to the second display opening area 182, thereby reducing the display difference between the first display opening area 181 and the second display opening area 182 and improving the display effect of the display panel.

[0109] For further information, please refer to Fig. 20As shown, the film structure of the compensation structure 15 is the same as the film structure of the pixel circuit 13 .

[0110] Exemplarily, the film layer structure of the compensation structure 15 is the same as the film layer structure of the pixel circuit 13. It can be understood that the compensation structure 15 and the pixel circuit 13 have the same number of film layers and the corresponding film layers are arranged in the same layer. For example, along the first direction, the pixel circuit 13 includes the active layer P1, the first metal layer M1, the capacitor substrate layer MC and the second metal layer M2 in sequence; correspondingly, the compensation structure 15 includes the fourth compensation layer 154a, the first compensation layer 151a, the third compensation layer 152a and the second compensation layer 152a in sequence. From the perspective of the film layer structure, it is ensured that the compensation structure 15 can reduce or eliminate the optical path difference between the light emitted from the light-emitting area corresponding to the first display opening area 181 and the light emitted from the light-emitting area corresponding to the second display opening area 182, reduce the display difference between the first display opening area 181 and the second display opening area 182, and improve the display effect of the display panel.

[0111] On the basis of the above embodiments, the shape of the compensation structure may also correspond to the luminous color of the light emitting element, which is described in detail below.

[0112] Fig.21 for Fig.13 A schematic diagram of a cross-sectional structure, such as Fig.21 As shown, the first light-emitting element includes a first red light-emitting element 141R, a first green light-emitting element 141G and a first blue light-emitting element 141B; the first red light unit element 141R includes a first sub-anode 1411R, the first green light-emitting element 141G includes a second sub-anode 1411G, and the first blue light-emitting element 141B includes a third sub-anode 1411B; the compensation structure 15 includes a first compensation structure 151, a second compensation structure 152 and a third compensation structure 153; along a first direction (the X direction as shown in the figure), the first sub-anode 1411R at least partially overlaps with the first compensation structure 151, the second sub-anode 1411G at least partially overlaps with the second compensation structure 152, and the third sub-anode 1411B at least partially overlaps with the third compensation structure 153; the sum of the surface areas of the third compensation structures 153 is greater than the sum of the surface areas of the first compensation structures 151, and the sum of the surface areas of the first compensation structures 151 is greater than the sum of the surface areas of the second compensation structures 152.

[0113] Exemplarily, along a first direction (the X direction as shown in the figure), the first sub-anode 1411R at least partially overlaps with the first compensation structure 151, the second sub-anode 1411G at least partially overlaps with the second compensation structure 152, and the third sub-anode 1411B at least partially overlaps with the third compensation structure 153, that is, the vertical projection of the first sub-anode 1411R on the plane where the substrate 101 is located is at least partially overlapped with the vertical projection of the first compensation structure 151 on the plane where the substrate 101 is located, and the vertical projection of the second sub-anode 1411G on the plane where the substrate 101 is located is at least partially overlapped with the vertical projection of the second compensation structure 152 on the plane where the substrate 101 is located. At least partially overlap, the vertical projection of the third sub-anode 1411B on the plane where the substrate 101 is located and the vertical projection of the third compensation structure 153 on the plane where the substrate is located at least partially overlap, so that the first sub-anode 1411R is compensated for heat dissipation by the first compensation structure 151, the second sub-anode 1411G is compensated for heat dissipation by the second compensation structure 152, and the third sub-anode 1411B is compensated for heat dissipation by the third compensation structure 153, thereby ensuring that the first sub-anode 1411R, the second sub-anode 1411G and the third sub-anode 1411B can all obtain good heat dissipation compensation, thereby ensuring that the first display area 11 has a good heat dissipation effect.

[0114] Furthermore, since the blue light emitting element generates the most heat, followed by the red light emitting element, and the green light emitting element generates the least heat during the display process of the display panel, the sum of the surface areas of the third compensation structure 153 corresponding to the first blue light emitting element 141B can be set to be the largest, that is, the surface area that can dissipate heat in the third compensation structure 153 is the largest, thereby ensuring that the heat dissipation effect of the third compensation structure 153 is the best; further, the sum of the surface areas of the first compensation structure 151 is set to be the second largest, and the sum of the surface areas of the second compensation structure 152 is set to be the smallest, that is, the sum of the surface areas of the compensation structure 15 is differentiated according to the heat generated by the light emitting elements corresponding to the compensation structure 15, thereby ensuring that different light emitting elements correspond to matching compensation structures, ensuring that the heat dissipation effect of the first display area is balanced, and ensuring that the light emitting effect of the light emitting elements in the first display area is good.

[0115] Further, the sum of the surface areas of the third compensation structures 153 is set to be greater than the sum of the surface areas of the first compensation structures 151, and the sum of the surface areas of the first compensation structures 151 is greater than the sum of the surface areas of the second compensation structures 152. The surface area of ​​each compensation film layer in the third compensation structure 153 can be set to be larger, the surface area of ​​each compensation film layer in the first compensation structure 151 is second, and the surface area of ​​each compensation film layer in the second compensation structure 152 is smaller; or, the number of compensation film layers in the third compensation structure 153 can be set to be larger, the number of compensation film layers in the first compensation structure 151 is second, and the number of compensation film layers in the second compensation structure 152 is smaller; and the surface area of ​​each compensation film layer in the compensation structure and the number of compensation film layers can also be adjusted to ensure that the sum of the surface areas of the third compensation structure 153 is greater than the sum of the surface areas of the first compensation structure 151, and the sum of the surface areas of the first compensation structure 151 is greater than the sum of the surface areas of the second compensation structure 152. The embodiment of the present invention does not limit this. Fig.21 The example in which the number of compensation film layers in the third compensation structure 153 is larger, the number of compensation film layers in the first compensation structure 151 is smaller, and the number of compensation film layers in the second compensation structure 152 is smaller is used for description.

[0116] Fig. 22 for Fig.13 Another cross-sectional structure diagram of Fig. 22 As shown, the first light-emitting element includes a first red light-emitting element 141R, a first green light-emitting element 141G and a first blue light-emitting element 141B; the first red light unit element 141R includes a first sub-anode 1411R, the first green light-emitting element 141G includes a second sub-anode 1411G, and the first blue light-emitting element 141B includes a third sub-anode 1411B; the compensation structure 15 includes a first compensation structure 151, a second compensation structure 152 and a third compensation structure 153; along a first direction (the X direction as shown in the figure), the first sub-anode 1411R at least partially overlaps with the first compensation structure 151, the second sub-anode 1411G at least partially overlaps with the second compensation structure 152, and the third sub-anode 1411B at least partially overlaps with the third compensation structure 153; the structures of the first compensation structure 151, the second compensation structure 152 and the third compensation structure 153 are all the same.

[0117] Exemplarily, along a first direction (the X direction as shown in the figure), the first sub-anode 1411R at least partially overlaps with the first compensation structure 151, the second sub-anode 1411G at least partially overlaps with the second compensation structure 152, and the third sub-anode 1411B at least partially overlaps with the third compensation structure 153, that is, the vertical projection of the first sub-anode 1411R on the plane where the substrate 101 is located is at least partially overlapped with the vertical projection of the first compensation structure 151 on the plane where the substrate 101 is located, and the vertical projection of the second sub-anode 1411G on the plane where the substrate 101 is located is at least partially overlapped with the vertical projection of the second compensation structure 152 on the plane where the substrate 101 is located. At least partially overlap, the vertical projection of the third sub-anode 1411B on the plane where the substrate 101 is located and the vertical projection of the third compensation structure 153 on the plane where the substrate is located at least partially overlap, so that the first sub-anode 1411R is compensated for heat dissipation by the first compensation structure 151, the second sub-anode 1411G is compensated for heat dissipation by the second compensation structure 152, and the third sub-anode 1411B is compensated for heat dissipation by the third compensation structure 153, thereby ensuring that the first sub-anode 1411R, the second sub-anode 1411G and the third sub-anode 1411B can all obtain good heat dissipation compensation, thereby ensuring that the first display area 11 has a good heat dissipation effect.

[0118] Furthermore, setting the first compensation structure 151 , the second compensation structure 152 and the third compensation structure 153 to have the same structure can ensure that the first compensation structure 151 , the second compensation structure 152 and the third compensation structure 153 are simply set and the heat dissipation effect in different areas of the first display area 11 is balanced.

[0119] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.23 A schematic diagram of a display device according to an embodiment of the present invention is shown in FIG. Fig.23 As shown, the display device 100 includes the display panel 10 described in any embodiment of the present invention. Therefore, the display device 100 provided by the embodiment of the present invention has the technical effect of the technical solution in any of the above embodiments, and the explanation of the same or corresponding structures and terms as the above embodiments will not be repeated here. The display device 100 provided by the embodiment of the present invention can be Fig.23 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiments of the present invention do not specifically limit this.

[0120] Fig.24 A schematic diagram of a cross-sectional structure of a display device provided by an embodiment of the present invention is shown in FIG. Fig.23 and Fig.24As shown, optionally, the display device provided in the embodiment of the present invention further includes a sensor 20 , and the display panel 10 further includes a sensor reserved area 19 . The sensor 20 is arranged in the sensor reserved area 19 , wherein the first display area 11 is multiplexed as the sensor reserved area 19 .

[0121] Among them, the sensor 20 may include any photosensitive element such as a camera and an infrared sensor. By setting the sensor 20 corresponding to the first display area 11 and setting the distribution density of the pixel circuit in the first display area to be smaller than the distribution density of the pixel circuit in the second display area, the light transmission effect of the first display area is improved, and it is ensured that the sensor 20 can normally receive light and work normally. Furthermore, the first display area includes a compensation structure, which compensates for the heat dissipation problem caused by the smaller distribution density of the pixel circuit in the first display area through the compensation structure, thereby improving the heat dissipation capacity of the first display area. And along the direction perpendicular to the plane where the substrate is located, the anode of the light-emitting element in the first display area at least partially overlaps with the compensation structure, that is, the anode covers at least part of the compensation structure, ensuring that the setting of the compensation structure will not affect the light transmission effect of the first display area, and ensuring that the light transmission effect of the first display area is good.

[0122] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: including a first display area and a second display area; The display panel further includes a pixel circuit, and the pixel circuit is used to drive the light-emitting element to emit light; wherein the distribution density of the pixel circuit in the first display area is less than the distribution density of the pixel circuit in the second display area; The first display area includes a compensation structure, and the compensation structure includes at least one compensation film layer; The first display area further includes a plurality of first light-emitting elements, the first light-emitting elements include anodes; along a first direction, the anodes at least partially overlap with the compensation structure; the display panel further includes a substrate, and the first direction is perpendicular to the plane where the substrate is located; The display panel further includes a non-display area, wherein the non-display area surrounds at least a portion of the second display area; The second display area includes a plurality of fourth light emitting elements; The pixel circuit includes a third pixel circuit and a fourth pixel circuit, the third pixel circuit is used to drive the first light-emitting element to emit light, and the fourth pixel circuit is used to drive the fourth light-emitting element to emit light; Wherein, at least part of the third pixel circuit is arranged in the non-display area, and the fourth pixel circuit is arranged in the second display area.

2. The display panel according to claim 1, characterized in that: The pixel circuit is arranged in the second display area.

3. The display panel according to claim 2, characterized in that: The compensation structure is electrically suspended.

4. The display panel according to claim 2, characterized in that: A display signal is transmitted in the compensation structure.

5. The display panel according to claim 4, characterized in that: The display panel further comprises a transparent signal transmission line, wherein the transparent signal transmission line is located between the film layer where the anode is located and the film layer where the compensation structure is located; The pixel circuit is electrically connected to the anode via the transparent signal transmission line and the compensation structure.

6. The display panel according to claim 5, characterized in that: The first display area includes a first sub-display area close to one side of the second display area; The pixel circuit is electrically connected to the anode of the light-emitting element in the first sub-display area via the transparent signal transmission line and the compensation structure.

7. The display panel according to claim 5, characterized in that: The first display area includes a first sub-display area close to a side of the second display area and a second sub-display area located at a side of the first sub-display area away from the second display area; The transparent signal transmission line includes a first transparent signal transmission line and a second transparent signal transmission line; The pixel circuit is electrically connected to the anode of the light-emitting element in the first sub-display area via the first transparent signal transmission line; The pixel circuit is electrically connected to the anode of the light-emitting element in the second sub-display area via the second transparent signal transmission line and the compensation structure; and along the first direction, the anode of the light-emitting element in the first sub-display area at least partially overlaps with the compensation structure.

8. The display panel according to claim 2, characterized in that: The second display area includes a third sub-display area and a fourth sub-display area; The third sub-display area surrounds at least a portion of the first display area, and the fourth sub-display area surrounds at least a portion of the third sub-display area; The third sub-display area includes a plurality of second light-emitting elements, and the fourth sub-display area includes a plurality of third light-emitting elements; The pixel circuit includes a first pixel circuit and a second pixel circuit, the first pixel circuit is located in the third sub-display area, and the second pixel circuit is located in the fourth sub-display area; the first pixel circuit is used to drive the second light-emitting element and the first light-emitting element, and the second pixel circuit is used to drive the third light-emitting element.

9. The display panel according to claim 1, characterized in that: The pixel circuit includes a fifth pixel circuit and a sixth pixel circuit, the fifth pixel circuit is located in the first display area, and the sixth pixel circuit is located in the second display area; The second display area further includes a plurality of fourth light emitting elements; The fifth pixel circuit is used to drive at least two of the first light-emitting elements, and the sixth pixel circuit is used to drive the fourth light-emitting element.

10. The display panel according to claim 9, characterized in that: The first light-emitting element includes a first sub-light-emitting element, and along the first direction, the first sub-light-emitting element does not overlap with the fifth pixel circuit, and the first sub-light-emitting element does not overlap with a connection line between two adjacent fifth pixel circuits; Along the first direction, the anode of the first light-emitting element at least partially overlaps with the compensation structure.

11. The display panel according to any one of claims 1 to 10, characterized in that: Along the first direction, the anode covers the compensation structure.

12. The display panel according to claim 1, characterized in that: The compensation film layer includes a metal compensation film layer.

13. The display panel according to claim 12, characterized in that: The pixel circuit comprises at least one metal layer; The metal compensation film layer is arranged at the same layer as the metal layer in the pixel circuit.

14. The display panel according to claim 13, characterized in that: The pixel circuit comprises at least a first metal layer and a second metal layer, wherein the second metal layer is located on a side of the first metal layer away from the substrate; The metal compensation film layer is arranged on the same layer as the second metal layer.

15. The display panel according to claim 13, characterized in that: The at least one compensation film layer comprises a first compensation film layer and a second compensation film layer, wherein the second compensation film layer is located on a side of the first compensation film layer away from the substrate; The pixel circuit comprises at least a first metal layer and a second metal layer, wherein the second metal layer is located on a side of the first metal layer away from the substrate; The first compensation film layer is disposed in the same layer as the first metal layer, and the second compensation film layer is disposed in the same layer as the second metal layer.

16. The display panel according to claim 15, characterized in that: At least one of the compensation film layers further comprises a third compensation film layer, and the third compensation film layer is located between the first compensation film layer and the second compensation film layer; The pixel circuit further includes a capacitor substrate layer, wherein the capacitor substrate layer is located between the first metal layer and the second metal layer; The third compensation film layer is arranged on the same layer as the capacitor substrate layer.

17. The display panel according to claim 16, characterized in that: At least one side of the compensation film layer further includes a fourth compensation film layer located on a side of the first compensation film layer close to the substrate; The pixel circuit further includes an active layer located on a side of the first metal layer close to the substrate; The fourth compensation film layer is arranged in the same layer as the active layer.

18. The display panel according to claim 17, characterized in that: The second compensation film layer is electrically connected to the first supplementary film layer through a via hole; and / or, the second compensation film layer is electrically connected to the third compensation film layer through a via hole; and / or, the second compensation film layer is electrically connected to the fourth compensation film layer through a via hole.

19. The display panel according to claim 1, characterized in that: The first display area includes a first display opening area, and along the first direction, the first display opening area at least partially overlaps with the compensation structure.

20. The display panel according to claim 1, characterized in that: The second display area includes a second display opening area; Along the first direction, a relative positional relationship between the first display opening area and the compensation structure is the same as a relative positional relationship between the second display opening area and the pixel circuit.

21. The display panel according to claim 20, characterized in that: The film layer structure of the compensation structure is the same as the film layer structure of the pixel circuit.

22. The display panel according to claim 1, characterized in that: The first light emitting element includes a first red light emitting element, a first green light emitting element and a first blue light emitting element; The first red light unit element includes a first sub-anode, the first green light emitting element includes a second sub-anode, and the first blue light emitting element includes a third sub-anode; The compensation structure includes a first compensation structure, a second compensation structure and a third compensation structure; Along the first direction, the first sub-anode at least partially overlaps with the first compensation structure, the second sub-anode at least partially overlaps with the second compensation structure, and the third sub-anode at least partially overlaps with the third compensation structure; The sum of surface areas of the third compensation structures is greater than the sum of surface areas of the first compensation structures, and the sum of surface areas of the first compensation structures is greater than the sum of surface areas of the second compensation structures.

23. The display panel according to claim 1, characterized in that: The first light emitting element includes a first red light emitting element, a first green light emitting element and a first blue light emitting element; The first red light unit element includes a first sub-anode, the first green light emitting element includes a second sub-anode, and the first blue light emitting element includes a third sub-anode; The compensation structure includes a first compensation structure, a second compensation structure and a third compensation structure; Along the first direction, the first sub-anode at least partially overlaps with the first compensation structure, the second sub-anode at least partially overlaps with the second compensation structure, and the third sub-anode at least partially overlaps with the third compensation structure; The structures of the first compensation structure, the second compensation structure and the third compensation structure are all the same.

24. A display device comprising the display panel according to any one of claims 1 to 23.

25. The display device according to claim 24, characterized in that: Also includes: sensor; The display panel also includes a sensor reserved area; the sensor is arranged in the sensor reserved area; wherein the first display area is reused as the sensor reserved area.

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