Display panel and display device

Abstract

The present invention relates to the field of display technology, and discloses a display panel and a display device, wherein the display panel comprises: a first light-transmitting group, a first non-display area and a display area, wherein the first light-transmitting group comprises at least two first light-transmitting areas arranged along a first direction; the display panel further comprises a plurality of pixel driving circuits and a plurality of driving signal lines, wherein the pixel driving circuit is located in the display area, the pixel driving circuit comprises a data writing module, and the driving signal line is electrically connected to a control end of the data writing module; the driving signal line comprises a first driving signal line, wherein the first driving signal line comprises a first line segment located in the display area and a first connecting line segment located in the first non-display area and connected to the first line segment, wherein the first line segment is located on one side of the first light-transmitting group along the first direction; the first connecting line segment at least partially surrounds the first light-transmitting area, and the first connecting line segment is at least partially located between two adjacent first light-transmitting areas. The present invention improves the display uniformity of the display panel.

Description

Technical Field

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

[0002] The display panel used for image display generally includes a display area and a non-display area for setting peripheral driving circuits. The light-emitting elements arranged in an array in the display area are electrically connected to the driving circuit through the pixel driving circuit. The display area of ​​the currently common display panel is generally a regular rectangular shape, that is, the number of light-emitting elements in each row is basically the same, and the writing of data signals in the light-emitting elements of a row is simultaneously controlled by one driving signal line.

[0003] With the development of display technology, display panels have an increasingly higher screen-to-body ratio, and full-screen displays have attracted widespread attention due to their narrow borders or even borderless display effects. At present, display devices such as mobile phones and tablets often need to reserve space on the front for commonly used front cameras, infrared sensing devices, fingerprint recognition devices and other electronic photosensitive devices. No light-emitting elements are set in this reserved space, resulting in a difference between the number of loads on the drive signal lines in the display area corresponding to this reserved space and the number of loads on the drive signal lines in the normal display area, resulting in a large difference in the time for writing the data signal of the light-emitting element in the display area corresponding to this reserved space and the time for writing the data signal of the light-emitting element in the normal display area, resulting in poor display uniformity. Summary of the invention

[0004] In view of this, the present invention provides a display panel and a display device, which improve the display uniformity of the display panel.

[0005] The present invention provides a display panel, comprising: a first light-transmitting group, a first non-display area and a display area, wherein the first non-display area surrounds the first light-transmitting group, the display area surrounds the first non-display area, and the first light-transmitting group includes at least two first light-transmitting areas arranged along a first direction; the display panel also includes a plurality of pixel driving circuits and a plurality of driving signal lines, the pixel driving circuit is located in the display area, the pixel driving circuit includes a data writing module, and the driving signal line is electrically connected to a control end of the data writing module; the driving signal line includes a first driving signal line, the first driving signal line includes a first line segment located in the display area and a first connecting line segment located in the first non-display area and connected to the first line segment, the first line segment is located on one side of the first light-transmitting group along the first direction; the first connecting line segment at least partially surrounds the first light-transmitting area, and the first connecting line segment is at least partially located between two adjacent first light-transmitting areas.

[0006] Based on the same idea, the present invention further provides a display device, including the display panel provided by the present invention.

[0007] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0008] The display panel provided by the present invention includes a plurality of pixel driving circuits and a plurality of driving signal lines, wherein the pixel driving circuit is located in the display area, the pixel driving circuit includes a data writing module, the driving signal line is electrically connected to the control end of the data writing module, and the data writing module is turned on or off by the signal on the driving signal line, thereby controlling the writing time of the data signal in the pixel driving circuit. The driving signal line in the display panel includes a first driving signal line, the first driving signal line includes a first line segment located in the display area and a first connecting line segment located in the first non-display area and connected to the first line segment, and the first line segment is located on one side of the first light-transmitting group along the first direction. Due to the setting of the first light-transmitting group and the first non-display area, there is at least one first driving signal line in the display panel, and the first line segment in the first driving signal line is located in the display area, and the first connecting line segment connecting the first line segment is located in the first non-display area, thereby realizing the transmission of the signal on the first driving signal line. The driving signal line in the display panel also includes a conventional driving signal line, the conventional driving signal line does not extend through the first non-display area, the first driving signal line extends through the first non-display area, and the pixel driving circuit is located in the display area, so that the number of pixel driving circuits electrically connected to the conventional driving signal line is greater than the number of pixel driving circuits electrically connected to the first driving signal line. The first connecting line segment at least partially surrounds the first light-transmitting area, and the first connecting line segment is at least partially located between two adjacent first light-transmitting areas, that is, the first connecting line segment in the first driving signal line can be wound in the area between two adjacent first light-transmitting areas in the first light-transmitting group, effectively increasing the setting length of the first connecting line segment in the first driving signal line, thereby increasing the resistance value of the first driving signal line, thereby increasing the load on the first driving signal line, effectively alleviating the load difference caused by the different number of pixel driving circuits electrically connected to the first driving signal line and the conventional driving signal line, thereby effectively alleviating the difference between the writing time of the data signal in the pixel driving circuit electrically connected to the first driving signal line and the writing time of the data signal in the pixel driving circuit electrically connected to the conventional driving signal line, and improving the display uniformity of the display panel.

[0009] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0010] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0012] Figure 1 A schematic plan view of a display panel provided by the present invention;

[0013] Figure 2 yes Figure 1 An enlarged schematic diagram of part A of the display panel;

[0014] Figure 3A is a circuit schematic diagram of a driving circuit provided by the present invention;

[0015] Figure 3B yes Figure 3A A timing diagram of the driving circuit;

[0016] Figure 4 yes Figure 1 Another enlarged schematic diagram of the portion A of the display panel;

[0017] Figure 5 for Figure 4 An enlarged schematic diagram of the first non-display area in the display panel;

[0018] Figure 6 yes Figure 1 Another enlarged schematic diagram of the portion A of the display panel;

[0019] Figure 7 for Figure 6 An enlarged schematic diagram of the first non-display area in the display panel;

[0020] Figure 8 It is a structural schematic diagram of a compensation area provided by the present invention;

[0021] Fig. 9 yes Figure 8 A cross-sectional view of the compensation area along the line AA';

[0022] Fig.10 yes Figure 1 Another enlarged schematic diagram of the portion A of the display panel;

[0023] Fig.11 for Fig.10 An enlarged schematic diagram of the first non-display area in the display panel;

[0024] Fig.12 yes Figure 1 Another enlarged schematic diagram of the portion A of the display panel;

[0025] Fig.13 for Fig.12 An enlarged schematic diagram of the first non-display area in the display panel;

[0026] Fig.14is a partial plan view of another display panel provided by the present invention;

[0027] Fig.15 is a partial plan view of another display panel provided by the present invention;

[0028] Fig.16 is a partial plan view of another display panel provided by the present invention;

[0029] Fig.17 yes Fig.16 A cross-sectional view of the display panel along BB';

[0030] Fig.18 yes Fig.16 A cross-sectional view of the display panel along CC';

[0031] Fig.19 is a plan view schematically showing another display panel provided by the present invention;

[0032] Fig. 20 yes Fig.19 A partial schematic diagram of the display panel;

[0033] Fig.21 yes Fig. 20 A cross-sectional view of the display panel along the line DD';

[0034] Fig. 22 is a partial plan view of another display panel provided by the present invention;

[0035] Fig.23 is a partial plan view of another display panel provided by the present invention;

[0036] Fig.24 It is a plan schematic diagram of a display device provided by the present invention. DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0039] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0040] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0041] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] Figure 1 A schematic plan view of a display panel provided by the present invention, Figure 2 yes Figure 1 An enlarged schematic diagram of the A portion of the display panel, Figure 3A is a circuit diagram of a driving circuit provided by the present invention, Figure 3B yes Figure 3A A timing diagram of the driving circuit, see Figure 1 , Figure 2 , Figure 3A and Figure 3B This embodiment provides a display panel, which includes a first light-transmitting group FA1, a first non-display area BA and a display area AA. The first non-display area BA surrounds the first light-transmitting group FA1, the display area AA surrounds the first non-display area BA, and the first light-transmitting group FA1 includes at least two first light-transmitting areas FA11 arranged along a first direction X.

[0043] The first light-transmitting area FA11 has good light transmittance, and devices such as light-sensing elements can be arranged in the area corresponding to the first light-transmitting area FA11. The first light-transmitting group FA1 includes at least two first light-transmitting areas FA11, which is conducive to setting a larger number of devices in the area corresponding to the first light-transmitting group FA1, so that the display panel can have more functions. Optionally, the vertical projection pattern of the first light-transmitting area FA11 on the plane where the display panel is located is circular. Of course, in other embodiments of the present invention, the vertical projection pattern of the first light-transmitting area FA11 on the plane where the display panel is located can also be other shapes such as rectangle and ellipse, and the present invention does not make specific restrictions on this, and it can be determined according to actual conditions.

[0044] In some optional embodiments, the light transmittance requirement of the first light-transmitting area FA11 in the display panel is relatively high. Accordingly, the sub-pixel P may not be set in the first light-transmitting area FA11, or the complete sub-pixel may not be set, and the first light-transmitting area FA11 is not used for display, thereby improving the light transmittance of the first light-transmitting area FA11. Optionally, no routing is set in the first light-transmitting area FA11, thereby improving the light transmittance of the first light-transmitting area FA11. Therefore, the routing that originally needs to extend through the first light-transmitting area FA11 can be routed through the first non-display area BA to achieve signal transmission of the routing in each area in the display area AA.

[0045] It should be noted that Figure 1 and Figure 2 It is only exemplarily shown that the display panel includes a first light-transmitting group FA1, and the first light-transmitting group FA1 includes two first light-transmitting areas FA11. In other embodiments of the present invention, the display panel may also include two or more first light-transmitting groups FA1, and the first light-transmitting group FA1 may also include other numbers of first light-transmitting areas FA11. The present invention does not make specific limitations on this, and the specific details may be determined according to actual conditions. Figure 1 and Figure 2 It is only exemplarily shown that the display area AA surrounds the first non-display area BA. In other embodiments of the present invention, the display area AA may also only partially surround the first non-display area BA. The specific details may be determined according to actual conditions, and the present invention will not be further described here.

[0046] The display panel also includes a plurality of pixel driving circuits 10 and a plurality of driving signal lines SP. The pixel driving circuit 10 is located in the display area AA. The pixel driving circuit 10 includes a data writing module 11. The driving signal line SP is electrically connected to the control end of the data writing module 11. The data writing module 11 is turned on or off by controlling the signal on the driving signal line SP, thereby controlling the writing time of the data signal in the pixel driving circuit 10.

[0047] The driving signal line SP in the display panel includes a first driving signal line SP10, the first driving signal line SP10 includes a first line segment 21 located in the display area AA and a first connecting line segment 31 located in the first non-display area BA and connected to the first line segment 21, and the first line segment 21 is located on one side of the first light-transmitting group FA1 along the first direction X. Due to the arrangement of the first light-transmitting group FA1 and the first non-display area BA, there is at least one first driving signal line SP10 in the display panel, and the first line segment 21 of the first driving signal line SP10 is located in the display area AA, and the first connecting line segment 31 connecting the first line segment 21 is located in the first non-display area BA, thereby realizing the transmission of the signal on the first driving signal line SP10.

[0048] The driving signal line SP in the display panel also includes a conventional driving signal line SP20, the conventional driving signal line SP20 does not extend through the first non-display area BA, the first driving signal line SP10 extends through the first non-display area BA, and the pixel driving circuit 10 is located in the display area AA, so that the number of pixel driving circuits 10 electrically connected to the conventional driving signal line SP20 is greater than the number of pixel driving circuits 10 electrically connected to the first driving signal line SP10.

[0049] The first connecting line segment 31 at least partially surrounds the first light-transmitting area FA11, and the first connecting line segment 31 is at least partially located between two adjacent first light-transmitting areas FA11, that is, the first connecting line segment 31 in the first drive signal line SP10 can be wound and arranged in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1, effectively increasing the setting length of the first connecting line segment 31 in the first drive signal line SP10, thereby increasing the resistance value of the first drive signal line SP10, thereby increasing the load on the first drive signal line SP10, effectively alleviating the load difference caused by the different numbers of pixel driving circuits 10 electrically connected to the first drive signal line SP10 and the conventional drive signal line SP20, thereby effectively alleviating the difference between the writing time of the data signal in the pixel driving circuit 10 electrically connected to the first drive signal line SP10 and the writing time of the data signal in the pixel driving circuit 10 electrically connected to the conventional drive signal line SP20, and improving the display uniformity of the display panel.

[0050] Figure 4 yes Figure 1 Another enlarged schematic diagram of the A portion of the display panel, see Figure 1 , Figure 3A and Figure 4 In some optional embodiments, the first non-display area BA includes a compensation area BA1, the compensation area BA1 is located between two adjacent first light-transmitting areas FA11, the compensation area BA1 includes a plurality of compensation parts 40, and the first connecting line segment 31 is electrically connected to the compensation part 40.

[0051] Specifically, the area between two adjacent first light-transmitting areas FA11 in the first non-display area BA is not used for display, and a compensation area BA1 may be set between the two adjacent first light-transmitting areas FA11. A plurality of compensation parts 40 may be set in the compensation area BA1, and the first connecting line segment 31 in the first drive signal line SP10 may be electrically connected to the compensation part 40, thereby effectively increasing the load on the first connecting line segment 31 in the first drive signal line SP10, that is, effectively increasing the load on the first drive signal line SP10, which may further alleviate the load difference caused by the different numbers of pixel driving circuits 10 electrically connected to the first drive signal line SP10 and the conventional drive signal line SP20, thereby further alleviating the difference between the writing time of the data signal in the pixel driving circuit 10 electrically connected to the first drive signal line SP10 and the writing time of the data signal in the pixel driving circuit 10 electrically connected to the conventional drive signal line SP20, thereby improving the display uniformity of the display panel.

[0052] Figure 5 for Figure 4 The enlarged schematic diagram of the first non-display area in the display panel is shown in FIG. Figure 1 , Figure 3A , Figure 4 and Figure 5 In some optional embodiments, the compensation unit 40 includes a first capacitor C1.

[0053] Specifically, a plurality of first capacitors C1 may be disposed in the compensation area BA1, and the first connecting line segment 31 in the first driving signal line SP10 may be electrically connected to the first capacitor C1, thereby increasing the load on the first driving signal line SP10.

[0054] Continue to refer Figure 1 , Figure 3A , Figure 4 and Figure 5 In some optional embodiments, part of the first connecting line segment 31 is reused as the first plate of the first capacitor C1.

[0055] Specifically, the first connecting line segment 31 is at least partially located between two adjacent first light-transmitting areas FA11, and the first connecting line segment 31 may be at least partially located in the compensation area BA1 between the two adjacent first light-transmitting areas FA11. Part of the first connecting line segment 31 is reused as the first electrode plate of the first capacitor C1, thereby realizing the electrical connection between the first connecting line segment 31 and the first capacitor C1 in the first driving signal line SP10.

[0056] Figure 6 yes Figure 1 Another enlarged schematic diagram of the A portion of the display panel, Figure 7 for Figure 6 The enlarged schematic diagram of the first non-display area in the display panel is shown in FIG. Figure 1 , Figure 3A , Figure 3B , Figure 6 and Figure 7 In some optional embodiments, the display area AA includes a plurality of sub-pixels P arranged in an array, and the sub-pixels P include a pixel driving circuit 10 and a light emitting element 20 electrically connected to the pixel driving circuit 10 .

[0057] The first drive signal line SP10 includes a first sub-drive signal line SP11 and a second sub-drive signal line SP12. The number of sub-pixels P electrically connected to the first sub-drive signal line SP11 is less than the number of sub-pixels P electrically connected to the second sub-drive signal line SP12. The capacitance value of the first capacitor C1 electrically connected to the first sub-drive signal line SP11 is greater than the capacitance value of the first capacitor C1 electrically connected to the second sub-drive signal line SP12. The first sub-drive signal line SP11 and the second sub-drive signal line SP12 can be load compensated to different degrees, thereby reducing the load difference caused by the different numbers of sub-pixels P electrically connected to the first sub-drive signal line SP11 and the second sub-drive signal line SP12, thereby alleviating the difference between the writing time of the data signal in the pixel drive circuit 10 electrically connected to the first sub-drive signal line SP11 and the writing time of the data signal in the pixel drive circuit 10 electrically connected to the second sub-drive signal line SP12, thereby improving the display uniformity of the display panel.

[0058] Specifically, the first driving signal line SP10 includes a first sub-driving signal line SP11 and a second sub-driving signal line SP12, and the number of sub-pixels P electrically connected to the first sub-driving signal line SP11 is less than the number of sub-pixels P electrically connected to the second sub-driving signal line SP12, so that when not electrically connected to the compensation part 40, the load difference between the first sub-driving signal line SP11 and the normal driving signal line SP20 is greater than the load difference between the second sub-driving signal line SP12 and the normal driving signal line SP20. Accordingly, the capacitance value of the first capacitor C1 electrically connected to the first sub-driving signal line SP11 is set to be greater than the capacitance value of the first capacitor C1 electrically connected to the second sub-driving signal line SP12, so as to reduce the load difference among the first sub-driving signal line SP11, the second sub-driving signal line SP12 and the normal driving signal line SP20.

[0059] It should be noted that, the present embodiment exemplarily shows that the first drive signal line SP10 includes a first sub-drive signal line SP11 and a second sub-drive signal line SP12, and the number of sub-pixels P electrically connected to the first sub-drive signal line SP11 is less than the number of sub-pixels P electrically connected to the second sub-drive signal line SP12, so that the capacitance value of the first capacitor C1 electrically connected to the first sub-drive signal line SP11 is greater than the capacitance value of the first capacitor C1 electrically connected to the second sub-drive signal line SP12. In other embodiments of the present invention, the first drive signal line SP10 may also include 3 or more different sub-drive signal lines, and the number of sub-pixels P electrically connected to various sub-drive signal lines is different. Accordingly, the fewer the number of electrically connected sub-pixels P, the larger the capacitance value of the first capacitor C1 electrically connected to the sub-drive signal line, thereby reducing the load difference between the drive signal lines SP in the display panel. The present invention will not be elaborated here.

[0060] Figure 8 is a schematic diagram of the structure of a compensation zone provided by the present invention, Fig. 9 yes Figure 8 A cross-sectional view of the compensation zone along A-A', referring to Figure 6-Figure 9 In some optional embodiments, the display panel includes a plurality of first power signal lines PVDD, part of the first power signal lines PVDD includes a first division PVDD10, and the first division PVDD10 is located in the compensation area BA1, that is, part of the first power signal line PVDD extends through the compensation area BA1, and the first division PVDD10 of the part of the first power signal line PVDD is located in the compensation area BA1.

[0061] The compensation area BA1 includes a plurality of conductive portions 50, the conductive portions 50 are electrically connected to the first subdivision PVDD10, the conductive portions 50 and the first subdivision PVDD10 are both insulated from the first connecting line segment 31, and a portion of the conductive portion 50 is reused as the second electrode plate of the first capacitor C1. Optionally, the conductive portion 50 is electrically connected to the first subdivision PVDD10 through a via 60.

[0062] Along a direction perpendicular to the plane where the display panel is located, the overlapping portion of the first connecting line segment 31 and the conductive portion 50 forms a first capacitor C1.

[0063] Specifically, a plurality of conductive parts 50 are provided in the compensation area BA1, and the conductive parts 50 are electrically connected to the first branch PVDD10, so that the signal on the first power signal line PVDD can be transmitted to the conductive part 50, and the first connecting line segment 31 and the conductive part 50 partially overlap in a direction perpendicular to the plane where the display panel is located, so that the overlapping part of the first connecting line segment 31 and the conductive part 50 forms a first capacitor C1 in a direction perpendicular to the plane where the display panel is located, and the part of the first connecting line segment 31 is the first plate of the first capacitor C1, and the part of the conductive part 50 is the second plate of the first capacitor C1, so that the first drive signal line SP10 is electrically connected to the first capacitor C1.

[0064] At the same time, the compensation part 40 may also include a second capacitor C2. Along the direction perpendicular to the plane where the display panel is located, the overlapping part of the first power signal line PVDD and the first connecting line segment 31 can form a second capacitor C2. The part of the first connecting line segment 31 is the first plate of the second capacitor C2, and the part of the first power signal line PVDD is the second plate of the second capacitor C2, so that the first drive signal line SP10 is electrically connected to the second capacitor C2, which is beneficial to improve the load compensation on the first drive signal line SP10.

[0065] Optionally, the conductive part 50 may be arranged in the same layer as the active part in the transistor in the display panel, so that in the direction perpendicular to the plane where the display panel is located, the distance between the conductive part 50 and the first connecting line segment 31 is much smaller than the distance between the first connecting line segment 31 and the first power signal line PVDD, that is, in the direction perpendicular to the plane where the display panel is located, the distance between the conductive part 50 and the first connecting line segment 31 is smaller, so that in the direction perpendicular to the plane where the display panel is located, the capacitance value of the first capacitor C1 formed by the overlapping part of the first connecting line segment 31 and the conductive part 50 is larger, which is beneficial to improve the load compensation on the first drive signal line SP10.

[0066] Continue to refer Figure 6-Figure 9 In some optional embodiments, the first sub-portion PVDD10 extends along the second direction Y, wherein the first direction X intersects the second direction Y. Optionally, the first direction X and the second direction Y are perpendicular to each other.

[0067] The conductive portion 50 includes a plurality of conductive segments 51 extending along the second direction Y. One conductive segment 51 is electrically connected to at least one first subdivision PVDD10 through a via 60 , so that a signal on the first subdivision PVDD10 can be transmitted to the conductive segment 51 .

[0068] The first driving signal line SP10 includes a winding portion 311 , and a portion of the first driving signal line SP10 located in the compensation area BA1 is the winding portion 311 .

[0069] The first capacitor C1 includes a plurality of first sub-capacitors C11. At each intersection of the winding portion 311 and the conductive line segment 51, along a direction perpendicular to the plane where the display panel is located, the overlapping portions of the winding portion 311 and the conductive line segment 51 each form a first sub-capacitor C11.

[0070] The number of the first sub capacitors C11 electrically connected to the first sub driving signal line SP11 is greater than the number of the first sub capacitors C11 electrically connected to the second sub driving signal line SP12.

[0071] Specifically, along the direction perpendicular to the plane where the display panel is located, the portion where the winding portion 311 and the conductive line segment 51 of the first driving signal line SP10 overlap to form the first sub-capacitor C11, and accordingly, the sum of the capacitance values ​​of all the first sub-capacitors C11 electrically connected to one first driving signal line SP10 is the capacitance value of the first capacitor C1 electrically connected to the first driving signal line SP10. By increasing the winding length of the winding portion 311 of the first sub-driving signal line SP11 in the compensation area BA1, the winding portion 311 of the first sub-driving signal line SP11 overlaps with a greater number of conductive line segments 51 along the direction perpendicular to the plane where the display panel is located, so that the number of first sub-capacitors C11 electrically connected to the first sub-driving signal line SP11 is greater than the number of first sub-capacitors C11 electrically connected to the second sub-driving signal line SP12, and the capacitance value of the first capacitor C1 electrically connected to the first sub-driving signal line SP11 can be greater than the capacitance value of the first capacitor C1 electrically connected to the second sub-driving signal line SP12.

[0072] Optionally, the winding length of the winding portion 311 in each first drive signal line SP10 in the compensation area BA1 can be adjusted according to the compensation amount of load compensation required on each first drive signal line SP10, so that the number of first sub-capacitors C11 electrically connected to each first drive signal line SP10 can be adjusted, thereby adjusting the capacitance value of the first capacitor C1 electrically connected to each first drive signal line SP10.

[0073] Continue to refer Figure 6-Figure 9 In some optional embodiments, the width of the conductive segment 51 in the first direction X is greater than the width of the first sub-portion PVDD10 in the first direction X. By increasing the width of the conductive segment 51 in the first direction X, the overlapping area of ​​the winding portion 311 and the conductive segment 51 in the direction perpendicular to the plane where the display panel is located is increased, so that the capacitance value of the first sub-capacitor C11 formed by the overlapping portion of the winding portion 311 and the conductive segment 51 in the direction perpendicular to the plane where the display panel is located is larger, which is beneficial to improving the load compensation on the first drive signal line SP10.

[0074] Fig.10 yes Figure 1 Another enlarged schematic diagram of the A portion of the display panel, Fig.11 for Fig.10 The enlarged schematic diagram of the first non-display area in the display panel is shown in FIG. Figure 1 , Figure 3A , Fig.10 and Fig.11 In some optional embodiments, the compensation portion 40 includes a dummy sub-pixel P1.

[0075] Specifically, a plurality of dummy sub-pixels P1 may be provided in the compensation area BA1. The dummy sub-pixels P1 are not used for display. The first connecting line segment 31 in the first driving signal line SP10 may be electrically connected to the dummy sub-pixels P1, thereby increasing the load on the first driving signal line SP10.

[0076] Continue to refer Figure 1 , Figure 3A , Fig.10 and Fig.11 In some optional embodiments, the display area AA includes a plurality of sub-pixels P arranged in an array, and the sub-pixels P include a pixel driving circuit 10 and a light emitting element 20 electrically connected to the pixel driving circuit 10 .

[0077] The first drive signal line SP10 includes a first sub-drive signal line SP11 and a second sub-drive signal line SP12. The number of sub-pixels P electrically connected to the first sub-drive signal line SP11 is less than the number of sub-pixels P electrically connected to the second sub-drive signal line SP12. The number of dummy sub-pixels P1 electrically connected to the first sub-drive signal line SP11 is greater than the number of dummy sub-pixels P1 electrically connected to the second sub-drive signal line SP12. Different degrees of load compensation can be performed on the first sub-drive signal line SP11 and the second sub-drive signal line SP12, thereby reducing the load difference caused by the different numbers of sub-pixels P electrically connected to the first sub-drive signal line SP11 and the second sub-drive signal line SP12, thereby alleviating the difference between the writing time of the data signal in the pixel drive circuit 10 electrically connected to the first sub-drive signal line SP11 and the writing time of the data signal in the pixel drive circuit 10 electrically connected to the second sub-drive signal line SP12, thereby improving the display uniformity of the display panel.

[0078] Specifically, the first driving signal line SP10 includes a first sub-driving signal line SP11 and a second sub-driving signal line SP12, and the number of sub-pixels P electrically connected to the first sub-driving signal line SP11 is less than the number of sub-pixels P electrically connected to the second sub-driving signal line SP12, so that when not electrically connected to the compensation part 40, the load difference between the first sub-driving signal line SP11 and the normal driving signal line SP20 is greater than the load difference between the second sub-driving signal line SP12 and the normal driving signal line SP20. Accordingly, the number of dummy sub-pixels P1 electrically connected to the first sub-driving signal line SP11 is set to be greater than the number of dummy sub-pixels P1 electrically connected to the second sub-driving signal line SP12, so as to reduce the load difference among the first sub-driving signal line SP11, the second sub-driving signal line SP12 and the normal driving signal line SP20.

[0079] It should be noted that the present embodiment exemplarily shows that the first drive signal line SP10 includes a first sub-drive signal line SP11 and a second sub-drive signal line SP12, and the number of sub-pixels P electrically connected to the first sub-drive signal line SP11 is less than the number of sub-pixels P electrically connected to the second sub-drive signal line SP12, so that the number of dummy sub-pixels P1 electrically connected to the first sub-drive signal line SP11 is greater than the number of dummy sub-pixels P1 electrically connected to the second sub-drive signal line SP12. In other embodiments of the present invention, the first drive signal line SP10 may also include 3 or more different sub-drive signal lines, and the number of sub-pixels P electrically connected to various sub-drive signal lines is different. Accordingly, the fewer the number of electrically connected sub-pixels P, the larger the number of dummy sub-pixels P1 electrically connected to the sub-drive signal line, thereby reducing the load difference between the drive signal lines SP in the display panel. The present invention will not be elaborated here.

[0080] Fig.12 yes Figure 1 Another enlarged schematic diagram of the A portion of the display panel, Fig.13 for Fig.12 The enlarged schematic diagram of the first non-display area in the display panel is shown in FIG. Fig.12 and Fig.13 In some optional embodiments, the compensation area BA1 at least partially surrounds any first light-transmitting area FA11 adjacent thereto, and the distance between the compensation area BA1 and the first light-transmitting area FA11 in the first direction X is smaller than the distance between the compensation area BA1 and another first light-transmitting area FA11 adjacent thereto in the first direction X.

[0081] Exemplarily, a compensation area BA1 is provided between the first light-transmitting area FA11a and the first light-transmitting area FA11b adjacent to each other along the first direction X, and the distance between the compensation area BA1 and the first light-transmitting area FA11b is greater than the distance between the compensation area BA1 and the first light-transmitting area FA11a, so that the compensation area BA1 is partially arranged around the first light-transmitting area FA11a, and accordingly, the compensation portion 40 in the compensation area BA1 is arranged around the first light-transmitting area FA11a, thereby effectively improving the transmittance of the area between the first light-transmitting area FA11a and the first light-transmitting area FA11b, and an electronic photosensitive device can be provided in the area between the first light-transmitting area FA11a and the first light-transmitting area FA11b.

[0082] Fig.14 is a partial plan view of another display panel provided by the present invention, referring to Fig.14 In some optional embodiments, the display panel further includes a control signal line S, and the control signal line S is electrically connected to the pixel driving circuit.

[0083] The control signal line S includes a first signal line S1, and the first signal line S1 includes a second line segment 22 located in the display area AA and a second connecting line segment 32 located in the first non-display area BA and connected to the second line segment 22, and the second line segment 22 is located on one side of the first light-transmitting group FA1 along the first direction X. Due to the arrangement of the first light-transmitting group FA1 and the first non-display area BA, there is at least one first signal line S1 in the display panel, and the second line segment 22 of the first signal line S1 is located in the display area AA, and the second connecting line segment 32 connecting the second line segment 22 is located in the first non-display area BA, thereby realizing the transmission of the signal on the first signal line S1.

[0084] The second connecting line segment 32 extends along an extending direction of an edge of the first non-display area BA.

[0085] Specifically, the control signal line S is electrically connected to the control terminals of other modules in the pixel driving circuit except the data writing module, so that the influence of the signal of the control signal line S on the writing time of the data signal in the pixel driving circuit can be ignored. The second connecting line segment 32 in the first signal line S1 can extend along the extension direction of the edge of the first non-display area BA, that is, the second connecting line segment 32 in the first signal line S1 is not arranged in a winding manner in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1, which is conducive to the first connecting line segment 31 in the first driving signal line SP10 being arranged in a winding manner in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1.

[0086] It should be noted that Fig.14 In order to clearly illustrate the arrangement of the control signal line S and the first drive signal line SP10, Fig.14 It is only exemplarily shown that the display panel includes two control signal lines S and four first drive signal lines SP10. In the actual product provided by the present invention, the display panel may include other numbers of control signal lines S and first drive signal lines SP10. The present invention does not make specific limitations on this and can be set according to actual production requirements.

[0087] Fig.15 is a partial plan view of another display panel provided by the present invention, referring to Fig.15 In some optional embodiments, the display panel further includes a frame area N1 surrounding the display area AA, the frame area N1 is not used for display, and the frame area NA includes a first frame area NA1 and a second frame area NA2, and the first frame area NA1 and the second frame area NA2 are arranged opposite to each other along the first direction X. The first frame area NA1 and the second frame area NA2 are respectively arranged on both sides of the display area AA along the first direction X.

[0088] The display panel further includes a first shift register VSR1 and a second shift register VSR2 , wherein the first shift register VSR1 is located in the first frame area NA1 , and the second shift register VSR2 is located in the second frame area NA2 .

[0089] The driving signal line SP is electrically connected to the first shift register VSR1 and the second shift register VSR2, and the first shift register VSR1 and the second shift register VSR2 are both used to transmit electrical signals to the driving signal line SP. Since the driving signal line SP is electrically connected to the control end of the data writing module in the pixel driving circuit, the data writing module is turned on or off by controlling the signal on the driving signal line SP, thereby controlling the writing time of the data signal in the pixel driving circuit. The first shift register VSR1 and the second shift register VSR2 are used to transmit electrical signals to the driving signal line SP, which can effectively alleviate the delay phenomenon of the signal transmitted on the driving signal line SP, thereby reducing the delay of the data signal and avoiding incomplete writing of the data signal. In particular, when the display panel is applied to a high-resolution display panel, incomplete writing of the data signal can be avoided, which is conducive to improving the display uniformity of the display panel.

[0090] The display panel also includes a control signal line S, which is electrically connected to the pixel driving circuit, and the control signal line S is electrically connected to the control end of other modules in the pixel driving circuit except the data writing module, so that the influence of the signal on the control signal line S on the data signal in the pixel driving circuit can be ignored, so that the control signal line S can be driven on one side, that is, the control signal line S is only electrically connected to one shift register. Part of the control signal lines S in the display panel can be electrically connected to the first shift register VSR1, and the remaining part of the control signal lines S is electrically connected to the second shift register VSR2, which is conducive to reducing the volume of the first shift register VSR1 and the second shift register VSR2, thereby helping to reduce the size of the first frame area NA1 and the second frame area NA2, and helping to achieve a narrow frame.

[0091] It should be noted that Fig.15It is exemplarily shown that when the display panel further includes a second light-transmitting area FA2 and a second non-displaying area CA, the driving signal line SP corresponding to the first light-transmitting group FA1 can be driven on both sides, and the driving signal line SP is set for load compensation in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1. In other embodiments of the present invention, the driving signal line SP extending through the area between the first light-transmitting group FA1 and the second light-transmitting area FA2 can be driven on one side, and can be partially electrically connected to the first shift register and partially electrically connected to the second shift register. Accordingly, the driving signal line SP extending through the first non-displaying area BA and not extending through the second non-displaying area CA is set for load compensation in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1, and the driving signal line SP extending through the second non-displaying area CA and not extending through the first non-displaying area BA may not be set for load compensation. In other embodiments of the present invention, the driving signal line SP extending through the area between the first light-transmitting group FA1 and the second light-transmitting area FA2 can be driven on one side and is electrically connected to the first shift register, so that part of the driving signal line SP extends through the first non-display area BA, and the part of the driving signal line SP can be set for load compensation in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1.

[0092] Continue to refer Figure 3A and Figure 3B In some optional embodiments, the display panel further includes a control signal line S, and the control signal line S is electrically connected to the pixel driving circuit 10.

[0093] The pixel driving circuit further includes a driving transistor T3, a compensation module 12, a first reset module 13, a second reset module 14, a first light-emitting control module 15, a second light-emitting control module 16 and a voltage regulating module 17. The driving transistor T3 is used to provide a light-emitting driving current for the light-emitting element 20, the gate of the driving transistor T3 is electrically connected to the first node N1, the first electrode of the driving transistor T3 is electrically connected to the second node N2, and the second electrode of the driving transistor T3 is electrically connected to the third node N3. The data writing module 11 is electrically connected to the second node N2, and the data writing module 11 is used to input the data signal to the second node N2. The compensation module 12 is connected to the first node N1 and the second node N2, and the compensation module 12 is used to capture the threshold voltage of the driving transistor T3. The first reset module 13 is electrically connected to the first node N1, and the first reset module 13 is used to reset the signal of the first node N1. The second reset module 14 is electrically connected to the fourth node N4, and the second reset module 14 is used to reset the signal of the fourth node N4. The first light emitting control module 15 is electrically connected to the second node N2, and the second light emitting control module 16 is electrically connected to the third node N3 and the fourth node N4. The first light emitting control module 15 and the second light emitting control module 16 are used to control the light emitting driving current provided by the driving transistor T3 to be transmitted to the light emitting element 20. The voltage regulating module 17 is electrically connected to the second node N2, and the voltage regulating module 17 is used to adjust the bias state of the driving transistor T3.

[0094] The control signal line S includes a first control signal line S11, a second control signal line S12, a third control signal line S13 and a light-emitting control signal line EM, wherein the control end of the compensation module 12 is electrically connected to the first control signal line S11, the control end of the first reset module 13 is electrically connected to the second control signal line S12, the control end of the second reset module 14 is electrically connected to the third control signal line S13, the control ends of the first light-emitting control module 15 and the second light-emitting control module 16 are both electrically connected to the light-emitting control signal line EM, and the control end of the voltage regulation module 17 is electrically connected to the third control signal line S13.

[0095] It should be noted that the present embodiment exemplarily shows that the pixel driving circuit also includes a driving transistor T3, a compensation module 12, a first reset module 13, a second reset module 14, a first light-emitting control module 15, a second light-emitting control module 16 and a voltage regulation module 17. Correspondingly, the control signal line S includes a first control signal line S11, a second control signal line S12, a third control signal line S13 and a light-emitting control signal line EM. In other embodiments of the present invention, the pixel driving circuit may further include a working module with other functions, and the control signal line S may further include other control signal lines, which will not be elaborated herein in the present invention.

[0096] It should be noted that Figure 3AAn 8T1C pixel driving circuit diagram is shown as an example. Figure 3B The example shows Figure 3A A driving timing sequence of the 8T1C pixel driving circuit shown in FIG. 1 , in other embodiments of the present invention, Figure 3A The 8T1C pixel driving circuit shown may also adopt other timing sequences. Of course, the pixel driving circuit may also adopt other circuits, which will not be described in detail in the present invention.

[0097] Fig.16 is a partial plan view of another display panel provided by the present invention, referring to Figure 3A and Fig.16 In some optional embodiments, the display area AA includes at least one first display area AA1, and the first display area AA1 is located along the first direction X at one side of the first light-transmitting area FA11.

[0098] The first display area AA1 includes a plurality of pixel row groups P20 , one pixel row group P20 includes two pixel rows P21 , the pixel row P21 includes a plurality of sub-pixels P arranged along the first direction X, and the sub-pixels P include a pixel driving circuit 10 and a light emitting element 20 electrically connected to the pixel driving circuit 10 .

[0099] In the same pixel row P21, each pixel driving circuit 10 is electrically connected to the same driving signal line SP, and the pixel driving circuits 10 in different pixel rows P21 are electrically connected to different driving signal lines SP, that is, the pixel driving circuits 10 in each pixel row P21 are electrically connected to different driving signal lines SP, and one driving signal line SP only provides signals to the pixel driving circuits 10 in one pixel row P21. Since the driving signal line SP is electrically connected to the control end of the data writing module 11 in the pixel driving circuit 10, the data writing module 11 is turned on or off by controlling the signal on the driving signal line SP, thereby controlling the writing time of the data signal in the pixel driving circuit 10. By using one driving signal line SP to only provide signals to the pixel driving circuit 10 in one pixel row P21, it is possible to avoid the driving signal line SP being electrically connected to too many pixel driving circuits 10, effectively alleviating the delay phenomenon of the signal transmitted on the driving signal line SP, thereby reducing the delay of the data signal and avoiding incomplete writing of the data signal.

[0100] In the same pixel row group P20, each pixel driving circuit 10 is electrically connected to the same first control signal line S11, each pixel driving circuit 10 is electrically connected to the same second control signal line S12, each pixel driving circuit 10 is electrically connected to the same third control signal line S13, and each pixel driving circuit 10 is electrically connected to the same light-emitting control signal line EM. That is, one first control signal line S11 can provide signals to the pixel driving circuits 10 in two pixel rows P21, one second control signal line S12 can provide signals to the pixel driving circuits 10 in two pixel rows P21, one third control signal line S13 can provide signals to the pixel driving circuits 10 in two pixel rows P21, and one light-emitting control signal line EM can provide signals to the pixel driving circuits 10 in two pixel rows P21. The first control signal line S11, the second control signal line S12, the third control signal line S13 and the light-emitting control signal line EM are electrically connected to the control ends of other modules in the pixel driving circuit 10 except the data writing module 11, so that the influence of the signals on the first control signal line S11, the second control signal line S12, the third control signal line S13 and the light-emitting control signal line EM on the data signal in the pixel driving circuit 10 can be ignored, so that a first control signal line S11 can be electrically connected to the pixel driving circuit 10 in two pixel rows P21, a second control signal line S12 can be electrically connected to the pixel driving circuit 10 in two pixel rows P21, a third control signal line S13 can be electrically connected to the pixel driving circuit 10 in two pixel rows P21, and a light-emitting control signal line EM can be electrically connected to the pixel driving circuit 10 in two pixel rows P21, which effectively reduces the number of control signal lines S in the first display area AA1 adjacent to the first light-transmitting area FA11, thereby reducing the number of control signal lines S in the first non-display area BA, which is beneficial to reducing the size of the first non-display area BA.

[0101] It should be noted that, in order to clearly illustrate the arrangement of the driving signal line SP, the first control signal line S11, the second control signal line S12, the third control signal line S13 and the light emitting control signal line EM in the first display area AA1 of the display panel, Fig.16 The arrangement of the sub-pixels in the first display area AA1 of the display panel is not shown, nor is the specific connection method shown. The connection method between the pixel driving circuit 10 and the driving signal line SP, the first control signal line S11, the second control signal line S12, the third control signal line S13 and the light emitting control signal line EM in the sub-pixel P can be referred to. Figure 3A The arrangement of the sub-pixels P in the first display area AA1 of the display panel can refer to Figure 2 .

[0102] Continue to refer Figure 3A , Figure 3B and Fig.16In some optional embodiments, a second control signal line S12 is electrically connected to two first signal transmission lines 71 located in the first display area AA1 through a first connection line 81, and the two first signal transmission lines 71 are electrically connected to the pixel driving circuits 10 in different pixel rows P21, respectively. The same second control signal line S12 can provide signals to each pixel driving circuit 10 in the same pixel row group P20 corresponding to it.

[0103] A driving signal line SP is electrically connected to a second signal transmission line 72 located in the first display area AA1 , and the same driving signal line SP can provide signals to each pixel driving circuit 10 in the same pixel row P21 corresponding thereto.

[0104] A first control signal line S11 is electrically connected to two third signal transmission lines 73 located in the first display AA1 through a second connection line 82. The two third signal transmission lines 73 are electrically connected to the pixel driving circuits 10 in different pixel rows P21, respectively. The same first control signal line S11 can provide signals to each pixel driving circuit 10 in the same pixel row group P20 corresponding to it.

[0105] A light-emitting control signal line EM is electrically connected to two fourth signal transmission lines 74 located in the first display area AA1 through a third connecting line 83. The two fourth signal transmission lines 74 are electrically connected to the pixel driving circuits 10 in different pixel rows P21 respectively. The same light-emitting control signal line EM can provide signals to each pixel driving circuit 10 in the same pixel row group P20 corresponding to it.

[0106] A third control signal line S13 is electrically connected to two fifth signal transmission lines 75 located in the first display area AA1 through a fourth connection line 84. The two fifth signal transmission lines 75 are electrically connected to the pixel driving circuits 10 in different pixel rows P21, respectively. The same third control signal line S13 can provide signals to each pixel driving circuit 10 in the same pixel row group P20 corresponding to it.

[0107] The first signal transmission line 71 to the fifth signal transmission line 75 electrically connected to each pixel driving circuit 10 in the same pixel row P21 are arranged in sequence along the second direction Y, wherein the first direction X intersects the second direction Y. Optionally, the first direction X and the second direction Y are perpendicular to each other.

[0108] In the same pixel row group P20, the two pixel rows P21 are respectively the Nth pixel row and the N+1th pixel row, where N≥1, and N is a positive integer. The drive signal line SP electrically connected to each pixel drive circuit 10 in the Nth pixel row is the second drive signal line SP1, and the drive signal line SP electrically connected to each pixel drive circuit 10 in the N+1th pixel row is the third drive signal line SP2.

[0109] In the first non-display area BA, along the second direction Y, the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13 electrically connected to the pixel driving circuit 10 in the same pixel row group P20 are arranged in sequence, which can reduce the interference of signals among the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13 electrically connected to the pixel driving circuit 10 in the same pixel row group P20 along the second direction Y.

[0110] Exemplarily, during the low frequency process, the light emitting control signal line EM and the third control signal line S13 are not frequency-reduced, and a larger spacing between the light emitting control signal line EM and the third control signal line S13 can avoid signal crosstalk between the two when the low frequency frame is maintained.

[0111] The driving signal line SP directly affects the writing of data signals in the pixel driving circuit 10. When a high-level pulse appears in the signal on the driving signal line SP, the signals on the signal lines around the driving signal line SP try to avoid rising edges or falling edges, thereby avoiding crosstalk with the signals on the driving signal line SP. The larger spacing between the second driving signal line SP1 and the third driving signal line SP2 can avoid the above problems.

[0112] Since the pixel driving circuit 10 of 8T1C must have 5 scanning signals per row, if each scanning signal is set with a shift register circuit and bilateral driving is adopted, 5 shift register circuits need to be set on the single-side frame, and the narrow frame design cannot be realized. Therefore, in the present invention, the control signal line S other than the driving signal line SP can be driven by a single side, and a one-drive-two design can be adopted. In this way, the width of the frame area can be reduced. Therefore, the high-level pulse of the signal on the first control signal line S11 needs to cover the pulse on the two rows of pixel driving circuits 10 to realize the one-drive-two design. When the first control signal line S11 is turned on, the pixel driving circuits 10 of the two rows are turned on in turn. If the first control signal line S11 is immediately turned off after the second row of pixel driving circuits 10 are turned off, there will be a brightness difference between odd and even rows. Because the first control signal line S11 is still turned on after the first row of pixel driving circuits 10 are turned off, and the first control signal line S11 is immediately turned off after the second row of pixel driving circuits 10 are turned off, the first row of pixel driving circuits 10 will have more charging time. Therefore, in order to solve the problem of brightness difference between odd and even rows, after the pixel driving circuit 10 of the second row is turned off, the first control signal line S11 still needs to be turned on for a period of time to reduce the multiple of the difference in charging time between odd and even rows, thereby alleviating the brightness difference between odd and even rows. Therefore, the first control signal line S11 will also affect the potential of the data signal of the first node N1 in the pixel driving circuit 10. In the present invention, the light-emitting control signal line EM is arranged around the first control signal line S11, and the high-level pulse of the signal on the light-emitting control signal line EM will cover the high-level pulse of the signal on the entire first control signal line S11, so it will not cause crosstalk to the signal on the first control signal line S11. The pixel driving circuit 10 starts writing the data signal only when a high-level pulse appears on the signal on the driving signal line SP. After the high-level pulse of the signal on the driving signal line SP ends, the signal on the first control signal line S11 maintains a high-level pulse for a period of time, so the crosstalk of the signal has been weakened by the subsequent extension of the charging time. Therefore, the crosstalk between the signals on the first control signal line S11 , the second control signal line S12 , the third control signal line S13 , the driving signal line SP and the light emitting control signal line EM is effectively reduced.

[0113] It should be noted that the present invention only exemplarily shows an arrangement order of the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13. In other embodiments of the present invention, the arrangement order of the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13 may only partially satisfy the arrangement order in the above-mentioned embodiments, and the present invention will not go into details one by one. Fig.17 yes Fig.16 A cross-sectional view of the display panel along BB', Fig.18 yes Fig.16 A cross-sectional view of the display panel along CC', referring to Figure 3A , Figure 16-18 In some optional embodiments, the display panel includes a base substrate 91, and a first metal layer 92, a second metal layer 93 and a third metal layer 94 arranged in sequence on one side of the base substrate 91, and the first metal layer 92, the second metal layer 93 and the third metal layer 94 are insulated.

[0114] The first signal transmission line 71 and the third signal transmission line 73 are located in the second metal layer 92 , and the second signal transmission line 72 , the fourth signal transmission line 74 and the fifth signal transmission line 75 are located in the first metal layer 91 .

[0115] Based on the film layer setting of the first signal transmission line 71 to the fifth signal transmission line 75, while reducing the difficulty of line changing, based on reducing the mutual interference between the signals on the first control signal line S11, the second control signal line S12, the third control signal line S13, the drive signal line SP and the light-emitting control signal line EM, the second control signal line S12 and the first control signal line S11 electrically connected to the drive circuit 10 in the pixel row group P20 can be arranged to be located in the third metal layer 94, the second drive signal line SP1 and the third drive signal line SP2 electrically connected to the drive circuit 10 in the pixel row group P20 can be arranged to be located in the second metal layer 93, and the light-emitting control signal line EM and the third control signal line S13 electrically connected to the drive circuit 10 in the pixel row group P20 can be located in the first metal layer 92.

[0116] At the same time, in the first non-display area BA, along the second direction Y, the second control signal line S12, the second drive signal line SP1, the light emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13 electrically connected to the drive circuit 10 in the same pixel row group P20 are arranged in sequence, and the second control signal line S12 and the first control signal line S11 electrically connected to the drive circuit 10 in the pixel row group P20 are located in the third metal layer 94, and the second drive signal line SP1 and the third drive signal line SP2 electrically connected to the drive circuit 10 in the pixel row group P20 are located in the second metal layer 9 3. The light-emitting control signal line EM and the third control signal line S13 electrically connected to the driving circuit 10 in the pixel row group P20 are located in the first metal layer 92, that is, the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13 can be alternately arranged in three different metal layers in sequence, which is beneficial to reducing the interference of signals among the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13.

[0117] Fig.19 is a plan view of another display panel provided by the present invention, Fig. 20 yes Fig.19 A partial schematic diagram of the display panel, Fig.21 yes Fig. 20 A cross-sectional view of the display panel along the DD' line, referring to Figure 19-21 In some optional embodiments, the display panel includes a plurality of data lines D, the data lines D include a first data line D1, the first data line D1 includes a third line segment 23 located in the display area AA and a third connecting line segment 33 located in the first non-display area BA and connected to the third line segment 23, and the third line segment 33 is located on one side of the first light-transmitting group FA1 along the second direction Y. Due to the arrangement of the first light-transmitting group FA1 and the first non-display area BA, there is at least one first data line D1 in the display panel, and the third line segment 23 in the first data line D1 is located in the display area AA, and the third connecting line segment 33 connected to the third line segment 23 is located in the first non-display area BA, thereby realizing the transmission of the signal on the first data line D1.

[0118] It should be noted that Fig.19 and Fig. 20 In order to clearly illustrate the arrangement of the first data line D1, Fig.19 and Fig. 20It is shown that only three third connecting line segments 33 are included in the area along the second direction Y in the first non-display area BA located on one side of the first light-transmitting group FA1. In the actual product provided by the present invention, the area along the second direction Y in the first non-display area BA in the display panel located on one side of the first light-transmitting group FA1 may include other numbers of third connecting line segments 33. The present invention does not make specific limitations on this and can be set according to actual production needs.

[0119] The display panel further includes a fourth metal layer 95, a fifth metal layer 96 and a sixth metal layer 97 which are sequentially arranged on a side of the third metal layer 94 away from the base substrate 91. The third line segment 23 is located in the fifth metal layer 95. Part of the data line D is electrically connected to the data pad E through the dummy data line D2, the dummy data line D2 is located in the display area AA, and the dummy data line D2 is at least partially located in the sixth metal layer 97, that is, part of the data line D can be electrically connected to the data pad E through the dummy data line D2, and the dummy data line D2 is located in the display area AA, which is conducive to reducing the size of the frame area NA.

[0120] Part of the third connection line segments 33 are located in the fourth metal layer 95, part of the third connection line segments 33 are located in the fifth metal layer 96, and part of the third connection line segments 33 are located in the sixth metal layer 97, and along the direction from the first non-display area BA to the display area AA, the third connection line segments 33 located in the fourth metal layer 95, the third connection line segments 33 located in the fifth metal layer 96, and the third connection line segments 33 located in the sixth metal layer 97 are alternately arranged. That is, the third connection line segments 33 are sequentially staggered in three different metal layers, which is conducive to reducing the interference of signals between the third connection line segments 33.

[0121] At the same time, the second control signal line S12 and the first control signal line S11 are located in the third metal layer 94, the second drive signal line SP1 and the third drive signal line SP2 are located in the second metal layer 93, and the light emitting control signal line EM and the third control signal line S13 are located in the first metal layer 92, so that the winding arrangement of the second control signal line S12, the second drive signal line SP1, the light emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13 in the first non-display area BA does not affect the third connecting line segment 33 in the first data line D1. The winding setting is beneficial to reducing the spacing between the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, the third control signal line S13 and the first data line D1 while minimizing the signal interference among the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, the third control signal line S13 and the first data line D1, which is beneficial to reducing the size of the first non-display area BA.

[0122] Continue to refer Figure 19-21 In some optional embodiments, at least some of the first connecting lines 81 to the fourth connecting lines 84 are located in the sixth metal layer 97, thereby avoiding interference of signals between the first connecting lines 81 to the fourth connecting lines 84, the first signal transmission lines 71 to the fifth signal transmission lines 75, the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13, so that the first connecting lines 81 to the fourth connecting lines 84 are insulated from each other, the first signal transmission lines 71 to the fifth signal transmission lines 75 are insulated from each other, and the second control signal line S12, the second drive signal line SP1, the light-emitting control signal line EM, the first control signal line S11, the third drive signal line SP2, and the third control signal line S13 are insulated from each other.

[0123] Continue to refer Figure 19-21 In some optional embodiments, each third connecting line segment 33 is arranged on both sides of the first light-transmitting group FA1 along the first direction X. That is, the third connecting line segment 33 does not extend through the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1, which can effectively improve the light transmittance of the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1, and an electronic photosensitive device can be set in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1. At the same time, it is beneficial to set the load compensation for the driving signal line SP in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1.

[0124] Fig. 22 is a partial plan view of another display panel provided by the present invention, referring to Fig. 22 In some optional embodiments, each third connecting line segment 33 extends through the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1, thereby facilitating the arrangement of the drive signal lines and control signal lines electrically connected to the pixel driving circuit in the first non-display area BA, in the area located on both sides of the first light-transmitting group FA1 along the first direction X. Optionally, part of the first data line D1 can be designed to be wound in the area between two adjacent first light-transmitting areas FA11 in the first light-transmitting group FA1 using dummy connecting lines, thereby facilitating the reduction of the area of ​​the first non-display area BA and facilitating the realization of a narrow frame.

[0125] Fig.23 is a partial plan view of another display panel provided by the present invention, referring to Fig.23In some optional embodiments, the display panel further includes a second light-transmitting area FA2 and a second non-display area CA. The second light-transmitting area FA2 also has excellent light transmittance. Devices such as light-sensing elements can be arranged in the area corresponding to the second light-transmitting area FA2. The second non-display area CA surrounds the second light-transmitting area FA2, the display area AA surrounds the second non-display area CA, and the second light-transmitting area FA2 and the first light-transmitting group FA1 are arranged along the first direction X.

[0126] Optionally, the vertical projection pattern of the second light-transmitting area FA2 on the plane where the display panel is located is a circle. Of course, in other embodiments of the present invention, the vertical projection pattern of the second light-transmitting area FA2 on the plane where the display panel is located can also be other shapes such as a rectangle or an ellipse, and the present invention does not impose specific restrictions on this, and it can be determined according to actual conditions.

[0127] The first driving signal line SP10 also includes a fourth line segment 24 located in the display area AA and a fourth connecting line segment 34 located in the second non-display area CA. Along the first direction X, the fourth line segment 24 is located between the second light-transmitting area FA2 and the first light-transmitting group FA1. The fourth line segment 24 connects the first connecting line segment 31 and the fourth connecting line segment 34. The fourth connecting line segment 34 partially surrounds the second light-transmitting area FA2, thereby enabling transmission of signals on the fourth line segment 24 between the second light-transmitting area FA2 and the first light-transmitting group FA1, thereby enabling normal display of the area of ​​the display area AA located between the second light-transmitting area FA2 and the first light-transmitting group FA1.

[0128] In some alternative embodiments, please refer to Fig.24 , Fig.24 1 is a schematic plan view of a display device provided by the present invention. The display device 1000 provided by this embodiment includes the display panel 100 provided by the above embodiment of the present invention. Fig.24 The embodiment only takes a mobile phone as an example to illustrate the display device 1000. It can be understood that the display device 1000 provided in the embodiment of the present invention can also be a computer, a television, a car display device or other display device 1000 with a display function, and the present invention does not specifically limit this. The display device 1000 provided in the embodiment of the present invention has the beneficial effects of the display panel 100 provided in the embodiment of the present invention. For details, please refer to the specific description of the display panel 100 in the above embodiments, and this embodiment will not be repeated here.

[0129] It can be seen from the above embodiments that the display panel and the display device provided by the present invention achieve at least the following beneficial effects:

[0130] The display panel provided by the present invention includes a plurality of pixel driving circuits and a plurality of driving signal lines, wherein the pixel driving circuit is located in the display area, the pixel driving circuit includes a data writing module, the driving signal line is electrically connected to the control end of the data writing module, and the data writing module is turned on or off by the signal on the driving signal line, thereby controlling the writing time of the data signal in the pixel driving circuit. The driving signal line in the display panel includes a first driving signal line, the first driving signal line includes a first line segment located in the display area and a first connecting line segment located in the first non-display area and connected to the first line segment, and the first line segment is located on one side of the first light-transmitting group along the first direction. Due to the setting of the first light-transmitting group and the first non-display area, there is at least one first driving signal line in the display panel, and the first line segment in the first driving signal line is located in the display area, and the first connecting line segment connecting the first line segment is located in the first non-display area, thereby realizing the transmission of the signal on the first driving signal line. The driving signal line in the display panel also includes a conventional driving signal line, the conventional driving signal line does not extend through the first non-display area, the first driving signal line extends through the first non-display area, and the pixel driving circuit is located in the display area, so that the number of pixel driving circuits electrically connected to the conventional driving signal line is greater than the number of pixel driving circuits electrically connected to the first driving signal line. The first connecting line segment at least partially surrounds the first light-transmitting area, and the first connecting line segment is at least partially located between two adjacent first light-transmitting areas, that is, the first connecting line segment in the first driving signal line can be wound in the area between two adjacent first light-transmitting areas in the first light-transmitting group, effectively increasing the setting length of the first connecting line segment in the first driving signal line, thereby increasing the resistance value of the first driving signal line, thereby increasing the load on the first driving signal line, effectively alleviating the load difference caused by the different number of pixel driving circuits electrically connected to the first driving signal line and the conventional driving signal line, thereby effectively alleviating the difference between the writing time of the data signal in the pixel driving circuit electrically connected to the first driving signal line and the writing time of the data signal in the pixel driving circuit electrically connected to the conventional driving signal line, and improving the display uniformity of the display panel.

[0131] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A display panel, characterized in that: include: A first light-transmitting group, a first non-display area and a display area, wherein the first non-display area surrounds the first light-transmitting group, the display area surrounds the first non-display area, and the first light-transmitting group includes at least two first light-transmitting areas arranged along a first direction; The display panel further comprises a plurality of pixel driving circuits and a plurality of driving signal lines, wherein the pixel driving circuits are located in the display area, the pixel driving circuits comprise a data writing module, and the driving signal lines are electrically connected to a control end of the data writing module; The driving signal line includes a first driving signal line, the first driving signal line includes a first line segment located in the display area and a first connecting line segment located in the first non-display area and connected to the first line segment, and the first line segment is located at one side of the first light-transmitting group along the first direction; The first connecting line segment at least partially surrounds the first light-transmitting area, and the first connecting line segment is at least partially located between two adjacent first light-transmitting areas; The display panel further includes a control signal line, the control signal line is electrically connected to the pixel driving circuit, and the control signal line includes a first control signal line, a second control signal line, a third control signal line and a light emitting control signal line; The display area includes at least one first display area, and the first display area is located on one side of the first light-transmitting area along the first direction; The first display area includes a plurality of pixel row groups, one of the pixel row groups includes two pixel rows, the pixel row includes a plurality of sub-pixels arranged along the first direction, the sub-pixels include the pixel driving circuit and a light emitting element electrically connected to the pixel driving circuit; In the same pixel row group, each pixel driving circuit is electrically connected to the same first control signal line, each pixel driving circuit is electrically connected to the same second control signal line, each pixel driving circuit is electrically connected to the same third control signal line, and each pixel driving circuit is electrically connected to the same light emission control signal line; In the same pixel row, each pixel driving circuit is electrically connected to the same driving signal line, and in different pixel rows, the pixel driving circuits are electrically connected to different driving signal lines; In the same pixel row group, the two pixel rows are respectively the Nth pixel row and the N+1th pixel row, where N≥1 and N is a positive integer; The driving signal line electrically connected to each of the pixel driving circuits in the Nth pixel row is a second driving signal line, and the driving signal line electrically connected to each of the pixel driving circuits in the N+1th pixel row is a third driving signal line; In the first non-display area, along the second direction, the second control signal line, the second drive signal line, the light-emitting control signal line, the first control signal line, the third drive signal line, and the third control signal line electrically connected to the pixel driving circuit in the same pixel row group are arranged in sequence, and the second direction intersects with the first direction.

2. The display panel according to claim 1, characterized in that: The first non-display area includes a compensation area, the compensation area is located between two adjacent first light-transmitting areas, the compensation area includes a plurality of compensation parts, and the first connecting line segment is electrically connected to the compensation part.

3. The display panel according to claim 2, characterized in that: The compensation unit includes a first capacitor.

4. The display panel according to claim 3, characterized in that: A portion of the first connecting line segment is reused as a first plate of the first capacitor.

5. The display panel according to claim 4, characterized in that: The display area includes a plurality of sub-pixels arranged in an array, and the sub-pixels include the pixel driving circuit and a light-emitting element electrically connected to the pixel driving circuit; The first drive signal line includes a first sub-drive signal line and a second sub-drive signal line, the number of sub-pixels electrically connected to the first sub-drive signal line is less than the number of sub-pixels electrically connected to the second sub-drive signal line, and the capacitance value of the first capacitor electrically connected to the first sub-drive signal line is greater than the capacitance value of the first capacitor electrically connected to the second sub-drive signal line.

6. The display panel according to claim 5, characterized in that: The display panel includes a plurality of first power signal lines, some of the first power signal lines include a first sub-portion, and the first sub-portion is located in the compensation area; The compensation area includes a plurality of conductive parts, the conductive parts are electrically connected to the first sub-part, and a part of the conductive parts is reused as a second plate of the first capacitor; Along a direction perpendicular to the plane where the display panel is located, the first capacitor is formed by an overlapping portion of the first connecting line segment and the conductive portion.

7. The display panel according to claim 6, characterized in that: The first section extends along the second direction; The conductive portion includes a plurality of conductive line segments extending along the second direction, and one of the conductive line segments is electrically connected to at least one of the first sub-portions through a via hole; The first driving signal line includes a winding portion, and the winding portion is located in the compensation area; The first capacitor includes a plurality of first sub-capacitors, and at each intersection of the winding portion and the conductive line segment, along a direction perpendicular to the plane where the display panel is located, the overlapping portions of the winding portion and the conductive line segment each form a first sub-capacitor; The number of the first sub-capacitors electrically connected to the first sub-driving signal lines is greater than the number of the first sub-capacitors electrically connected to the second sub-driving signal lines.

8. The display panel according to claim 7, characterized in that: The width of the conductive line segment in the first direction is greater than the width of the first section in the first direction.

9. The display panel according to claim 2, characterized in that: The compensation portion includes a dummy sub-pixel.

10. The display panel according to claim 9, characterized in that: The display area includes a plurality of sub-pixels arranged in an array, and the sub-pixels include the pixel driving circuit and a light-emitting element electrically connected to the pixel driving circuit; The first drive signal line includes a first sub-drive signal line and a second sub-drive signal line, the number of sub-pixels electrically connected to the first sub-drive signal line is less than the number of sub-pixels electrically connected to the second sub-drive signal line, and the number of dummy sub-pixels electrically connected to the first sub-drive signal line is greater than the number of dummy sub-pixels electrically connected to the second sub-drive signal line.

11. The display panel according to claim 2, characterized in that: The compensation area at least partially surrounds any adjacent first light-transmitting area, and a distance between the compensation area and the first light-transmitting area in the first direction is smaller than a distance between the compensation area and another adjacent first light-transmitting area in the first direction.

12. The display panel according to claim 1, characterized in that: The control signal line includes a first signal line, the first signal line includes a second line segment located in the display area and a second connecting line segment located in the first non-display area and connected to the second line segment, and the second line segment is located at one side of the first light-transmitting group along the first direction; The second connecting line segment extends along an extending direction of an edge of the first non-display area.

13. The display panel according to claim 1, characterized in that: The display panel further includes a frame area surrounding the display area, the frame area includes a first frame area and a second frame area, and the first frame area and the second frame area are arranged opposite to each other along the first direction; The display panel further comprises a first shift register and a second shift register, wherein the first shift register is located in the first frame area, and the second shift register is located in the second frame area; The driving signal line is electrically connected to the first shift register and the second shift register; Part of the control signal lines is electrically connected to the first shift register, and the remaining part of the control signal lines is electrically connected to the second shift register.

14. The display panel according to claim 1, characterized in that: The pixel driving circuit further includes a driving transistor, a compensation module, a first reset module, a second reset module, a first light-emitting control module, a second light-emitting control module and a voltage regulating module, wherein the gate of the driving transistor is electrically connected to the first node, the first electrode of the driving transistor is electrically connected to the second node, the second electrode of the driving transistor is electrically connected to the third node, the data writing module is electrically connected to the second node, the compensation module is connected to the first node and the second node, the first reset module is electrically connected to the first node, the second reset module is electrically connected to the fourth node, the first light-emitting control module is electrically connected to the second node, the second light-emitting control module is electrically connected to the third node and the fourth node, and the voltage regulating module is electrically connected to the second node; The control end of the compensation module is electrically connected to the first control signal line, the control end of the first reset module is electrically connected to the second control signal line, the control end of the second reset module is electrically connected to the third control signal line, the control ends of the first light-emitting control module and the second light-emitting control module are both electrically connected to the light-emitting control signal line, and the control end of the voltage regulation module is electrically connected to the third control signal line.

15. The display panel according to claim 1, characterized in that: One of the second control signal lines is electrically connected to two first signal transmission lines located in the first display area through a first connection line, and the two first signal transmission lines are electrically connected to the pixel driving circuits in different pixel rows respectively; One of the driving signal lines is electrically connected to a second signal transmission line located in the first display area; One of the first control signal lines is electrically connected to two third signal transmission lines located in the first display area through a second connection line, and the two third signal transmission lines are electrically connected to the pixel driving circuits in different pixel rows respectively; One of the light-emitting control signal lines is electrically connected to two fourth signal transmission lines located in the first display area through a third connection line, and the two fourth signal transmission lines are electrically connected to the pixel driving circuits in different pixel rows respectively; One of the third control signal lines is electrically connected to two fifth signal transmission lines located in the first display area through a fourth connection line, and the two fifth signal transmission lines are electrically connected to the pixel driving circuits in different pixel rows respectively; Along the second direction, the first signal transmission line to the fifth signal transmission line electrically connected to each of the pixel driving circuits in the same pixel row are arranged in sequence.

16. The display panel according to claim 15, characterized in that: The display panel comprises a base substrate, and a first metal layer, a second metal layer and a third metal layer sequentially arranged on one side of the base substrate; The first signal transmission line and the third signal transmission line are located in the second metal layer, the second signal transmission line, the fourth signal transmission line and the fifth signal transmission line are located in the first metal layer, and in the first non-display area, the second control signal line and the first control signal line electrically connected to the driving circuit in the pixel row group are located in the third metal layer, the second drive signal line and the third drive signal line electrically connected to the driving circuit in the pixel row group are located in the second metal layer, and the light emitting control signal line and the third control signal line electrically connected to the driving circuit in the pixel row group are located in the first metal layer.

17. The display panel according to claim 16, characterized in that: The display panel includes a plurality of data lines, the data lines include a first data line, the first data line includes a third line segment located in the display area and a third connecting line segment located in the first non-display area and connected to the third line segment, and the third line segment is located at one side of the first light-transmitting group along the second direction; The display panel further includes a fourth metal layer, a fifth metal layer and a sixth metal layer which are sequentially arranged on a side of the third metal layer away from the base substrate; The third line segment is located in the fifth metal layer, part of the data line is electrically connected to the data pad through a dummy data line, the dummy data line is located in the display area, and at least part of the dummy data line is located in the sixth metal layer; Some of the third connecting line segments are located in the fourth metal layer, some of the third connecting line segments are located in the fifth metal layer, and some of the third connecting line segments are located in the sixth metal layer; And along the direction from the first non-display area to the display area, the third connecting line segments located at the fourth metal layer, the third connecting line segments located at the fifth metal layer, and the third connecting line segments located at the sixth metal layer are arranged alternately.

18. The display panel according to claim 17, characterized in that: At least some of the first to fourth connecting lines are located in the sixth metal layer.

19. The display panel according to claim 17, characterized in that: The third connecting line segments are respectively arranged on two sides of the first light-transmitting group along the first direction.

20. The display panel according to claim 1, characterized in that: The display panel further includes a second light-transmitting area and a second non-displaying area, the second non-displaying area surrounds the second light-transmitting area, the displaying area surrounds the second non-displaying area, and the second light-transmitting area and the first light-transmitting group are arranged along the first direction; The first driving signal line also includes a fourth line segment located in the display area and a fourth connecting line segment located in the second non-display area. Along the first direction, the fourth line segment is located between the second light-transmitting area and the first light-transmitting group. The fourth line segment connects the first connecting line segment and the fourth connecting line segment. The fourth connecting line segment partially surrounds the second light-transmitting area.

21. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1-20.

Images