Display panel and display device

Abstract

A display panel and a display device, comprising: a substrate, wherein a display area comprises a first area (c), a second area (a) and a transition area (b); a plurality of first light-emitting elements (100), located in the first area (c); a plurality of second light-emitting elements (200), a plurality of first pixel circuits (300) and a plurality of second pixel circuits (400), located in the transition area (b), wherein the plurality of first pixel circuits (300) are distributed between the plurality of second pixel circuits (400) at intervals, and the orthographic projection of at least one second pixel circuit (400) on the substrate at least partially overlaps with the orthographic projection of at least one second light-emitting element (200) on the substrate; a plurality of first conductive lines (500), wherein each first conductive line (500) connects at least one first pixel circuit (300) and at least one first light-emitting element (100); and a plurality of second conductive lines (600), wherein each second conductive line (600) connects at least one first pixel circuit (300) and extends along at least one first pixel circuit (300) to a side away from at least one first light-emitting element (100). The display panel and display device can solve the problem of uneven brightness in the under-screen camera area.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] In related technologies, full-screen display products have emerged in order to pursue a larger display area and increase the screen-to-body ratio. For the front camera, many full-screen display products use an under-screen camera, which reduces the PPI of the pixel arrangement in the transparent area of ​​the camera and increases the transmittance, so that the image quality of the transparent area of ​​the camera is better while also having the function of display. However, the current under-screen camera area has problems such as uneven brightness and too small a camera area. Summary of the invention

[0003] The embodiments of the present disclosure provide a display panel and a display device, which can solve the problems of uneven brightness of the under-screen camera area and too small camera area in the related art.

[0004] The technical solutions provided by the embodiments of the present disclosure are as follows:

[0005] An embodiment of the present disclosure provides a display panel, including:

[0006] A base substrate, the base substrate comprising a display area, the display area comprising a first area, a second area located outside the first area, and a transition area located between the first area and the second area, and the light transmittance of the first area is greater than that of the second area;

[0007] A plurality of first light emitting elements, located in the first area;

[0008] A plurality of second light-emitting elements, a plurality of first pixel circuits and a plurality of second pixel circuits are located in the transition region, and the plurality of first pixel circuits are distributed between the plurality of second pixel circuits at intervals, and an orthographic projection of at least one second pixel circuit on the substrate at least partially overlaps with an orthographic projection of at least one second light-emitting element on the substrate;

[0009] A plurality of first conductive lines, each of which is connected between at least one first pixel circuit and at least one first light-emitting element;

[0010] A plurality of second conductive lines, each of which is connected to at least one first pixel circuit and extends along the at least one first pixel circuit toward a side away from the at least one first light-emitting element.

[0011] Exemplarily, an orthographic projection of the second conductive line on the substrate overlaps with an orthographic projection of the at least one first pixel circuit or the at least one second pixel circuit on the substrate.

[0012] Exemplarily, the second conductive line extends along the at least one first pixel circuit toward a side away from the at least one first light-emitting element to a boundary between the second region and the transition region.

[0013] Exemplarily, ends of the plurality of second conductive lines extending to the boundary between the second region and the transition region are all located in the transition region.

[0014] Exemplarily, ends of the plurality of second conductive lines extending to the boundary between the second region and the transition region are all located within the second region.

[0015] Exemplarily, among the plurality of second conductive lines, one end of a portion of the second conductive lines extending to the boundary between the second region and the transition region is located within the transition region, and one end of another portion of the second conductive lines extending to the boundary between the second region and the transition region is located within the second region.

[0016] Exemplarily, the display panel further includes: a plurality of third light-emitting elements located in the second area, the third light-emitting elements at least including one first sub-pixel, one second sub-pixel and two third sub-pixels, the two third sub-pixels are arranged in the same column but different rows, the first sub-pixel and the second sub-pixel are both located on the same side of the two third sub-pixels, and the first sub-pixel and the second sub-pixel are arranged in different columns and different rows;

[0017] In a first direction, a region boundary of the first region includes an opposite first side boundary and a second side boundary, and at the first side boundary, two of the third sub-pixels are located on a side close to the transition region, and the first sub-pixel and the second sub-pixel are located on a side away from the transition region, and the first direction is a row direction of the third light-emitting elements;

[0018] At the first side boundary, each of the second conductive lines extends to be flush with one end of a boundary line between the transition region and the second region, and maintains a first distance from a third sub-pixel in the second region that is closest to the transition region;

[0019] At the second side boundary, each of the second conductive lines extending to one end of the boundary line between the transition area and the second area is not flush, and maintains a second distance from the first sub-pixel closest to the transition area in the second area, and maintains a third distance from the second sub-pixel closest to the transition area in the second area.

[0020] Exemplarily, the first distance, the second distance and the third distance are all greater than or equal to 2 micrometers.

[0021] Exemplarily, the angle between the first conductive line and the second conductive line is 175±5°.

[0022] Exemplarily, the first pixel circuit includes a virtual electrode, which is located on a side of the first conductive line away from the substrate and is electrically connected to the first conductive line.

[0023] Exemplarily, the display panel also includes: a plurality of third light-emitting elements and a plurality of third pixel circuits, the third light-emitting elements and the third pixel circuits are located in the second region, and an arrangement density of the third light-emitting elements is greater than or equal to an arrangement density of the first light-emitting elements in the first region and the second light-emitting elements in the transition region.

[0024] Exemplarily, the light transmittance of the first conductive line and the second conductive line is greater than or equal to 50%.

[0025] Exemplarily, the first conductive line and the second conductive line are provided in the same layer and with the same material.

[0026] Exemplarily, the first conductive wire is an indium tin oxide wire or an indium zinc oxide wire; the second conductive wire is an indium tin oxide wire or an indium zinc oxide wire.

[0027] Exemplarily, the display panel further includes: at least one third conductive line, each of the third conductive lines connects at least one first pixel circuit and at least one first light-emitting element, and the third conductive lines and the first conductive lines are arranged in different layers.

[0028] Exemplarily, the first pixel circuit includes a virtual electrode, and the third conductive line is provided in the same layer and with the same material as the virtual electrode.

[0029] Exemplarily, the third conductive line is led out from the virtual electrode in the transition region that is closest to the first region, and is connected to the first light-emitting element in the first region that is closest to the transition region.

[0030] An embodiment of the present disclosure further provides a display device, comprising the display panel as described above.

[0031] Exemplarily, a camera element is provided on the non-display side of the first area.

[0032] The beneficial effects brought by the embodiments of the present disclosure are as follows:

[0033] The display panel and the display device provided by the embodiments of the present disclosure have a display area including a first area, a second area and a transition area, the light transmittance of the first area is greater than that of the second area (for example, the first area can be used as an under-screen camera area), and in order to improve the light transmittance of the first area, the control line of the first area is optimized, and only a first light-emitting element is arranged in the first area, but no pixel circuit is arranged, and a plurality of second light-emitting elements, a plurality of first pixel circuits and a plurality of second pixel circuits are arranged in the second area, wherein the first pixel circuits and the second pixel circuits are distributed at intervals, and the second pixel circuits are connected to the second light-emitting elements for driving the second light-emitting elements; at least one of the first pixel circuits is connected to at least one of the first light-emitting elements by a first conductive line, so that the second pixel circuit in the transition area can drive the second light-emitting element in the transition area to emit light, and the The first pixel circuit in the transition area drives the first light-emitting element in the first area, so that there is no need to arrange the pixel circuit in the first area, only the first light-emitting element is set, and the transmittance of the first area is improved, and the size of the first area may not be limited; in addition, a second conductive line is also provided in the transition area, each of the second conductive lines is connected to at least one first pixel circuit, and extends along the at least one first pixel circuit to a side away from the at least one first light-emitting element, that is, the first conductive line is extended in the opposite direction to the boundary between the transition area and the second area, so that each second conductive line is controlled to pass through the environment in the transition area as similar as possible, so that the parasitic capacitance between the first conductive line that controls the first light-emitting element in the first area to emit light and the pixel circuit in the transition area is roughly the same, so as to solve the problem of uneven brightness in the under-screen camera area in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram showing a display area of ​​a display panel provided in an embodiment of the present disclosure;

[0035] Figure 2 A schematic diagram showing the connection between a first light-emitting element in a first area of ​​a display panel and a first pixel circuit in some embodiments provided by the present disclosure, wherein only a portion of the first conductive lines are shown, and not all of the first conductive lines are shown;

[0036] Figure 3 A schematic diagram showing connections between a first light-emitting element in a first region of a display panel and a first pixel circuit in a transition region in some other embodiments provided by the present disclosure, wherein only a portion of the first conductive lines and the second conductive lines are illustrated, and not all of the first conductive lines and the second conductive lines are illustrated;

[0037] Figure 4A schematic diagram showing the connection between a virtual electrode and a first conductive line of a first pixel circuit in a transition area of ​​a display panel in some embodiments provided by the present disclosure;

[0038] Figure 5 A schematic diagram showing a structure of a second side boundary of each second conductive line of a display panel at a first region in some embodiments provided by the present disclosure;

[0039] Figure 6 A schematic diagram showing a structure of a first side boundary of each second conductive line of a display panel in a first region in some embodiments provided by the present disclosure;

[0040] Figure 7 A schematic diagram showing a pixel arrangement structure of a third light-emitting element of a display panel in some embodiments provided by the present disclosure;

[0041] Figure 8 A schematic diagram of a structure showing a combination of first conductive lines and fourth conductive lines in a display panel to drive a first light-emitting element in a first region in some embodiments provided by the present disclosure. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0043] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] Before describing in detail the display panel and the display device provided in the embodiments of the present disclosure, it is necessary to describe the related technologies as follows:

[0045] In related technologies, full-screen display products have emerged in order to pursue a larger display area and increase the screen-to-body ratio. For the front camera, many full-screen display products use an under-screen camera, which increases the transmittance by reducing the PPI (pixel density) of the pixel arrangement in the camera area (Camera area), so that the image quality of the transparent area of ​​the camera is better, while also having the function of display. The display area of ​​the AA area of ​​the under-screen camera is divided into a high-density pixel area (a) and a low-density pixel area (b). The high-density pixel area is also called the H area (High PPI area), and the low-density pixel area is also called the L area (Low PPI area). The camera area (c) is designed in the L area, and the non-Camera area of ​​the L area is called the transition area. However, the current under-screen camera area has problems such as uneven brightness and the camera area is too small.

[0046] In order to improve the problems of uneven brightness in the camera area and small size of the camera area, in the disclosed embodiment, the signal routing, control lines and matching relationship of the light-emitting devices in the L-zone camera area are designed and optimized to achieve uniform brightness of the under-screen camera area and unlimited size of the camera area.

[0047] Figure 1 A schematic diagram showing a display area of ​​a display panel provided in an embodiment of the present disclosure; Figure 2 and Figure 3 FIG. 1 is a schematic diagram of a partial structure of a display area of ​​a display panel provided in an embodiment of the present disclosure, wherein in order to clearly illustrate the connection relationship of signal leads in the display panel provided in an embodiment of the present disclosure, Figure 2 and Figure 3 Only part of the connection relationship is shown, and not all the routing connection relationships are shown.

[0048] like Figures 1 to 3 As shown, an embodiment of the present disclosure provides a display panel, including:

[0049] A base substrate, the base substrate comprising a display area, the display area comprising a first area c, a second area a located outside the first area c, and a transition area b located between the first area c and the second area a, and the light transmittance of the first area c is greater than that of the second area a;

[0050] A plurality of first light emitting elements 100, located in the first region c;

[0051] A plurality of second light-emitting elements 200, a plurality of first pixel circuits 300 and a plurality of second pixel circuits 400 are located in the transition region b, and the plurality of first pixel circuits 300 are distributed between the plurality of second pixel circuits 400 at intervals, and an orthographic projection of at least one second pixel circuit 400 on the substrate at least partially overlaps with an orthographic projection of at least one second light-emitting element 200 on the substrate;

[0052] A plurality of first conductive lines 500, each of the first conductive lines 500 is connected between at least one first pixel circuit 300 and at least one first light emitting element 100;

[0053] A plurality of second conductive lines 600 , each of which is connected to at least one first pixel circuit 300 and extends along the at least one first pixel circuit 300 toward a side away from the at least one first light emitting element 100 .

[0054] Before describing the embodiments of the present disclosure in detail, the following description is given: Figure 2 In order to more clearly show the connection relationship between the first conductive line 500 and the first pixel circuit and the first light-emitting element, and the connection relationship between the first conductive line 500 and the second conductive line 600, the second conductive line 600 is not shown; Figure 3 The second conductive line 600 is shown in FIG. Figure 2 and Figure 3 Only a portion of the conductive lines on the left side of the first area in the figure are illustrated, and the conductive lines on the right side of the first area in the figure are not illustrated.

[0055] In the display panel provided in the embodiment of the present disclosure, the first area c of the display area can be used as a light-transmitting area of ​​the under-screen camera, and the second area a can be a normal display area.

[0056] The first light emitting element 100 and the second light emitting element 200 are elements capable of emitting light. For example, the first light emitting element 100 and the second light emitting element 200 may include EL devices (electroluminescent devices).

[0057] It should be noted that, in the above scheme, at least one of the first pixel circuits 300 is connected to at least one of the first light-emitting elements 100 through the first conductive line 500, that is, one of the first pixel circuits 300 can be used to drive at least one of the first light-emitting elements 100 in the first region c. For ease of description, the first pixel circuit 300 and the first light-emitting element 100 connected thereto through the first conductive line 500 are referred to as a pairing unit. Each of the second conductive lines 600 is connected to at least one first pixel circuit 300, and extends along the at least one first pixel circuit 300 toward a side away from the at least one first light-emitting element 100, which means that each of the second conductive lines 600 extends from the first pixel circuit 300 connected to the second conductive line 600 toward a direction away from the first light-emitting element 100 that forms a pairing unit with the first pixel circuit 300.

[0058] In the above scheme, in order to improve the transmittance of the first region c, the control line of the first region c is optimized. Only the first light-emitting element 100 is set in the first region c, and no pixel circuit is set; a plurality of second light-emitting elements 200, a plurality of first pixel circuits 300 and a plurality of second pixel circuits 400 are set in the second region a, wherein the first pixel circuit 300 and the second pixel circuit 400 are distributed at intervals, and the second pixel circuit 400 is connected to the second light-emitting element 200 for driving the second light-emitting element 200, and the orthographic projection of the second pixel circuit 400 on the substrate substrate overlaps at least partially with the orthographic projection of the second light-emitting element 200 on the substrate substrate. In other words, the second pixel circuit 400 is a pixel circuit capable of driving a light-emitting element, while the first pixel circuit 300 is a pixel circuit (Dummy pixel) that cannot drive a light-emitting element. At least one of the first pixel circuits 300 is connected to at least one of the first light-emitting elements 100 through a first conductive line 500, so that the second pixel circuit 400 in the transition region b can drive the second light-emitting element 200 in the transition region b to emit light, and the first pixel circuit 300 in the transition region b drives the first light-emitting element 100 in the first region c, so that the first region c can be made into a structure without pixel circuits but only with the first light-emitting element 100, so as to improve the light transmittance of the first region c, and the size of the first region c can also be unlimited; in addition, a second conductive line 600 is also provided in the transition region b, Each of the second conductive lines 600 is connected to at least one first pixel circuit 300, and extends along the at least one first pixel circuit 300 to a side away from the at least one first light-emitting element 100, that is, the first conductive line 500 is extended to the boundary between the transition area b and the second area a, so that each second conductive line 600 is controlled to pass through an environment as similar as possible in the transition area b, thereby making the parasitic capacitance between the first conductive line 500 that controls the first light-emitting element 100 in the first area c to emit light and the pixel circuit in the transition area b substantially the same, so as to solve the problem of uneven brightness in the under-screen camera area in the related art.

[0059] In some exemplary embodiments, an orthographic projection of the second conductive line 600 on the substrate overlaps with an orthographic projection of the at least one first pixel circuit 300 or the at least one second pixel circuit 400 on the substrate.

[0060] In addition, in some exemplary embodiments of the present disclosure, the second conductive line 600 extends along the at least one first pixel circuit 300 toward a side away from the at least one first light-emitting element 100, and extends to a boundary between the second region a and the transition region b. In this way, it can be ensured as much as possible that the environment passed by each second conductive line 600 in the transition region b is substantially the same.

[0061] In some exemplary embodiments, ends of the plurality of second conductive lines 600 extending to the boundary between the second region a and the transition region b are all located in the transition region b;

[0062] Alternatively, the ends of the plurality of second conductive lines 600 extending to the boundary between the second region a and the transition region b are all located in the second region a;

[0063] Alternatively, among the multiple second conductive lines 600, one end of a portion of the second conductive lines 600 extending to the boundary between the second region a and the transition region b is located in the transition region b, and one end of another portion of the second conductive lines 600 extending to the boundary between the second region a and the transition region b is located in the second region a.

[0064] In the above scheme, in order to ensure that the environments passed by each second conductive line 600 are roughly the same while avoiding the second conductive line 600 causing adverse interference to the second area a, according to the pixel circuit structure of the second area a in the actual product, one end of the second conductive line 600 extending to the boundary between the transition area b and the second area a can be located in the transition area b, or in the second area a, and the ends of a part of the second conductive line 600 can be located in the transition area b, and the ends of another part of the second conductive line 600 can be located in the second area a.

[0065] The above scheme is described exemplarily below.

[0066] The display panel further includes: a plurality of third light-emitting elements 700 located in the second area a, and the pixel arrangement structures of the first light-emitting element 100, the second light-emitting element 200 and the third light-emitting element 700 may be the same or different. The following description is made by taking the example that the pixel arrangement structures of the first light-emitting element 100, the second light-emitting element 200 and the third light-emitting element 700 may be the same.

[0067] In some exemplary embodiments, Figure 5 , Figure 6 and Figure 7As shown, the third light-emitting element 700 includes at least one first sub-pixel 11, one second sub-pixel 12 and two third sub-pixels 13, the two third sub-pixels 13 are arranged in the same column but in different rows, the first sub-pixel 11 and the second sub-pixel 12 are both located on the same side of the two third sub-pixels 13, and the first sub-pixel 11 and the second sub-pixel 12 are arranged in different columns and different rows. For example, the first sub-pixel 11 may be a red sub-pixel, the second sub-pixel 12 may be a blue sub-pixel, and the third sub-pixel 13 may be a green sub-pixel.

[0068] Depend on Figures 4 to 7 It can be seen that in the first direction, that is, in the row direction of the third light-emitting elements 700, the boundary shapes of the two opposite sides of each of the third light-emitting elements 700 are different. Figure 5 The right side of the first sub-pixel 11 and the second sub-pixel 12 are not flush with each other. Figure 6 The left sides of the two third sub-pixels 13 are flush with each other.

[0069] Therefore, if Figure 3 , Figure 5 and Figure 6 As shown, in the first direction, the region boundary of the first region c includes a first side boundary c1 and a second side boundary c2 opposite to each other, and at the first side boundary c1, the two third sub-pixels 13 are located on a side close to the transition region b, and the first sub-pixel 11 and the second sub-pixel 12 are located on a side away from the transition region b, and the first direction is a row direction of the third light-emitting element 700;

[0070] At the first side boundary c1, each of the second conductive lines 600 extends to be flush with one end of the boundary line between the transition region b and the second region a, and maintains a first distance D1 from the third sub-pixel 13 in the second region a that is closest to the transition region b;

[0071] At the second side boundary c2, each of the second conductive lines 600 extends to an end of the boundary line between the transition area b and the second area a, and is not flush, and maintains a second distance D2 from the first sub-pixel 11 in the second area a that is closest to the transition area b, and maintains a third distance D3 from the second sub-pixel 12 in the second area a that is closest to the transition area b.

[0072] It should be noted that the above is only an example. In practical applications, the end position of each second conductive line 600 extending to the boundary line between the transition area b and the second area a should be adjusted according to the actual placement position of each sub-pixel of the pixel unit.

[0073] Exemplarily, the first distance D1 , the second distance D2 , and the third distance D3 are all greater than or equal to 2 micrometers.

[0074] In addition, in some exemplary embodiments, the transmittance of the first conductive wire 500 and the second conductive wire 600 is greater than or equal to 50%, that is, the first conductive wire 500 and the second conductive wire 600 are transparent conductive wires to ensure that the first region c has a good transmittance. The transmittance of the first conductive wire 500 and the second conductive wire 600 can range from 50% to 70%. For example, the first conductive wire 500 and the second conductive wire 600 can both be indium tin oxide wire (ITO wire). The material of the first conductive wire 500 and the second conductive wire 600 is not limited to this. For example, the material of the first conductive wire 500 and the second conductive wire 600 can also be indium zinc oxide wire (IZO wire) and the like.

[0075] In addition, in some exemplary embodiments, the first conductive wire 500 and the second conductive wire 600 can be arranged in the same layer and the same material. That is, the corresponding first conductive wire 500 and the second conductive wire 600 are made of the same conductive wire. Of course, it can be understood that in actual applications, the first conductive wire 500 and the second conductive wire 600 can also be made of different materials and arranged in the same layer, or different materials and arranged in different layers.

[0076] Furthermore, in some exemplary embodiments, Figure 3 As shown, the angle between the first conductive line 500 and the second conductive line 600 is 175±5°. In the above solution, the second conductive line 600 and the first conductive line 500 may be located on the same straight line, but this is not a limitation. In actual applications, combined with the circuit layout of the product itself, the second conductive line 600 and the second conductive line 600 may also have a certain angle.

[0077] In addition, in some embodiments of the present disclosure, Figure 4 As shown, the first pixel circuit 300 may include a virtual electrode 310 but not a light-emitting element. The virtual electrode 310 of the first pixel circuit 300 is located on a side of the first conductive line 500 away from the substrate and is electrically connected to the first conductive line 500 .

[0078] In the above scheme, the first pixel circuit 300 includes a virtual electrode 310, wherein the shape of the virtual electrode 310 can be the same as the electrode shape in the second pixel circuit 400, and the virtual electrode 310 can be an electrode structure such as a virtual anode or a virtual cathode; the virtual electrode 310 in the first pixel circuit 300 is connected to the first conductive line 500, which can ensure that the first conductive line 500 is in a straight line state compared to the method of using other parts of the first pixel circuit 300 to connect to the first conductive line 500.

[0079] For example, Figure 4 As shown, the second pixel circuit 400 includes an electrode 410 and a source-drain metal layer (i.e., SD layer, not shown in the figure) connected to the electrode 410, and the first pixel circuit 300 includes a virtual electrode 310 and a source-drain metal layer connected to the virtual electrode 310, wherein the source-drain metal layer is located on a side of the virtual electrode 310 close to the substrate, a first insulating layer is provided between the source-drain metal layer and the virtual electrode 310, and the virtual electrode 310 and the source-drain metal layer are overlapped through a via 311 on the first insulating layer, as shown in FIG. Figure 4 As shown, one of the virtual electrodes 310 is overlapped with the source-drain metal layer through two vias 311; the first conductive line may be located between the virtual electrode 310 and the source-drain metal layer, and the first conductive line 500 may be directly overlapped with the virtual electrode 310, such as Figure 4 The position indicated by the mark d is the overlapping position of the first conductive line 500 and the virtual electrode 310 .

[0080] In addition, in some exemplary embodiments of the present disclosure, the display panel also includes: a plurality of third light-emitting elements 700 and a plurality of third pixel circuits, the third light-emitting elements 700 and the third pixel circuits are located in the second area a, and an arrangement density of the third light-emitting elements 700 is greater than or equal to an arrangement density of the first light-emitting elements 100 in the first area c and the second light-emitting elements 200 in the transition area b.

[0081] In the above embodiment, in order to ensure that the first area c has better light transmittance, the arrangement density of the first light-emitting elements 100 in the first area c is less than the arrangement density of the third light-emitting elements 700 in the second area a, and the arrangement density of the second light-emitting elements 200 in the transition area b is less than the arrangement density of the third light-emitting elements 700 in the second area a, so as to ensure that the first area c has better light transmittance.

[0082] Of course, it is understandable that, in practical applications, the arrangement density of the first light-emitting elements 100 in the first area c may also be the same as the arrangement density of the third light-emitting elements 700 in the second area a to ensure that the first area c has a better display effect.

[0083] In addition, in some embodiments of the present disclosure, Figure 3 As shown, in the transition region b, each column of the first pixel circuit 300 is further connected to a fourth conductive line 800 and a fifth conductive line 900 , and the fourth conductive line 800 and the fifth conductive line 900 are used to control the data signal on each column of the first pixel circuit 300 .

[0084] In the second direction, i.e., the column direction of the first light-emitting element 100, the boundary of the first region c also includes a third side boundary c3 and a fourth side boundary c4 relative to each other, wherein each of the fourth conductive lines 800 extends from the third side boundary c3 of the first region c, around the first side boundary c1 line of the first region c or around the second side boundary c2 line, to the fourth side boundary c4 of the first region c, and a fifth conductive line 900 is connected to each column of the first pixel circuit 300, and one end of the fifth conductive line 900 is connected to the corresponding fourth conductive line 800.

[0085] In addition, in some exemplary embodiments of the present disclosure, due to the line width, gap and other dimensions of the first conductive line 500 itself, and the limitations of the arrangement space dimensions of the pixel circuit and the light-emitting element, there may be a problem of insufficient space to arrange a sufficient number of the first conductive lines 500 to drive the first light-emitting element 100.

[0086] In order to solve the above problems, in some embodiments of the present disclosure, Figure 8 As shown, the display panel further includes: at least one third conductive line 510, each of the third conductive lines 510 connects at least one first pixel circuit 300 and at least one first light-emitting element 100, and the third conductive lines 510 and the first conductive lines 500 are arranged in different layers.

[0087] In the above scheme, a part of the first light-emitting elements 100 can be driven by the first conductive wire 500, and another part of the first light-emitting elements 100 can also be driven by the third conductive wire 510 arranged in a different layer from the first conductive wire 500, so as to solve the problem that the number of first conductive wires 500 is insufficient to drive all the first light-emitting elements 100.

[0088] Exemplarily, the first pixel circuit 300 includes a virtual electrode 310 , and the third conductive line 510 is provided in the same layer and with the same material as the virtual electrode 310 .

[0089] In the above solution, the virtual electrode 310 in the first pixel circuit 300 in the transition region b can be used to lead out the third conductive line 510 to drive the first light emitting element 100 in the first region c.

[0090] Of course, it can be understood that the above is only an example, and in actual applications, conductive wires of other materials or other layers can also be used to make the third conductive wire 510.

[0091] In addition, for example, Figure 8 As shown, the third conductive line 510 is led out from the virtual electrode 310 in the transition region b that is closest to the first region c, and is connected to the first light-emitting element 100 in the first region c that is closest to the transition region b.

[0092] In the above scheme, since the virtual electrode 310 is usually made of opaque metal, in order to minimize the influence of the third conductive line 510 on the transmittance, the virtual electrode 310 closest to the first area c should be selected to lead out the wiring to form the third conductive line 510.

[0093] To facilitate understanding of the above solution, the following example is given:

[0094] For example, Figure 8 As shown, the matching mode of the first conductive line 500 and the third conductive line 510 depends on the number of the first light-emitting elements 100 in the first area c. Taking the light-emitting element as a GGRB pixel arrangement as an example, the pixel pitch is 60.2 μm, and the PPI of the first area c is 1 / 2 of the PPI of the second area a. The minimum cycle unit of the L area is 60.2*4=240.8 μm, the design diameter of the first area c is 3000 μm, and the line width of the data signal line is 200 μm. Then, the number of the first light-emitting elements 100 in the first area c is (3000+200*2) / 240.8=14 groups (such as Figure 8 As shown), the total number of control leads required for the first light-emitting element 100 in the first region c is (14 / 2)*8=56.

[0095] Taking the pitch between the first conductive wires 500 as about 4 μm, due to the limitation of the longitudinal dimension of the first light-emitting element 100, excluding the space and margin at the via hole, the pitch is about 8.2 μm, so the number of first conductive wires 500 that can be arranged under a minimum first light-emitting element 100 is [(60.2-8.2) / 4]*4=52. Therefore, the first conductive wires 500 alone cannot drive all the first light-emitting elements 100, and need to be matched with the third conductive wires 510 to drive all the first light-emitting elements 100.

[0096] like Figure 8 As shown, the light emitting signal of the first light emitting element 100 of the edge half group of the first region c is controlled by the third conductive line 510 led out of the virtual electrode 310, so that there is one first conductive line 500 left in each gap (Pixel Pitch) between two first light emitting elements 100 (such as Figure 8 As shown in the figure by the reference numerals e and f), it can be used to control the light-emitting devices of other first light-emitting elements 100.

[0097] It should be noted that the above is only an example. In actual applications, the matching method of the first conductive wire 500 and the third conductive wire 510 can be determined according to parameters such as the size of each conductive wire in the actual product and the size of the light-emitting element.

[0098] In addition, the embodiment of the present disclosure further provides a display device, including the display panel provided by the embodiment of the present disclosure. The display device may be a display device with an under-screen camera, and a camera element is provided on the non-display side of the first area c of the display panel. Obviously, the display device provided by the embodiment of the present disclosure can also bring the beneficial effects that the display panel provided by the embodiment of the present disclosure can bring, which will not be repeated here.

[0099] There are a few points to note:

[0100] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

[0101] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0102] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0103] The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel comprises: A base substrate, the base substrate comprising a display area, the display area comprising a first area, a second area located outside the first area, and a transition area located between the first area and the second area, and the light transmittance of the first area is greater than that of the second area; A plurality of first light emitting elements, located in the first area; A plurality of second light-emitting elements, a plurality of first pixel circuits and a plurality of second pixel circuits are located in the transition region, and the plurality of first pixel circuits are distributed between the plurality of second pixel circuits at intervals, and an orthographic projection of at least one second pixel circuit on the substrate at least partially overlaps with an orthographic projection of at least one second light-emitting element on the substrate; A plurality of first conductive lines, each of which is connected between at least one first pixel circuit and at least one first light-emitting element; A plurality of second conductive lines, wherein the second conductive lines are formed by extending the first conductive lines in the opposite direction toward the boundary between the transition region and the second region, each of the second conductive lines is connected to at least one first pixel circuit, and extends along the at least one first pixel circuit toward a side away from the at least one first light-emitting element.

2. The display panel according to claim 1, characterized in that: An orthographic projection of the second conductive line on the substrate overlaps with an orthographic projection of the at least one first pixel circuit or the at least one second pixel circuit on the substrate.

3. The display panel according to claim 1, characterized in that: The second conductive line extends along the at least one first pixel circuit toward a side away from the at least one first light-emitting element to a boundary between the second region and the transition region.

4. The display panel according to claim 3, characterized in that: Ends of the plurality of second conductive lines extending to the boundary between the second region and the transition region are all located in the transition region.

5. The display panel according to claim 3, characterized in that: Ends of the plurality of second conductive lines extending to the boundary between the second region and the transition region are all located in the second region.

6. The display panel according to claim 3, characterized in that: Among the plurality of second conductive lines, one end of a portion of the second conductive lines extending to the boundary between the second region and the transition region is located in the transition region, and one end of another portion of the second conductive lines extending to the boundary between the second region and the transition region is located in the second region.

7. The display panel according to claim 6, characterized in that: The display panel further includes: a plurality of third light-emitting elements located in the second area, the third light-emitting elements at least including one first sub-pixel, one second sub-pixel and two third sub-pixels, the two third sub-pixels are arranged in the same column but in different rows, the first sub-pixel and the second sub-pixel are both located on the same side of the two third sub-pixels, and the first sub-pixel and the second sub-pixel are arranged in different columns and in different rows; In a first direction, a region boundary of the first region includes an opposite first side boundary and a second side boundary, and at the first side boundary, two of the third sub-pixels are located on a side close to the transition region, and the first sub-pixel and the second sub-pixel are located on a side away from the transition region, and the first direction is a row direction of the third light-emitting elements; At the first side boundary, each of the second conductive lines extends to be flush with one end of a boundary line between the transition region and the second region, and maintains a first distance from a third sub-pixel in the second region that is closest to the transition region; At the second side boundary, each of the second conductive lines extending to one end of the boundary line between the transition area and the second area is not flush, and maintains a second distance from the first sub-pixel closest to the transition area in the second area, and maintains a third distance from the second sub-pixel closest to the transition area in the second area.

8. The display panel according to claim 7, characterized in that: The first distance, the second distance and the third distance are all greater than or equal to 2 micrometers.

9. The display panel according to claim 1, characterized in that: The angle between the first conductive line and the second conductive line is 175±5°.

10. The display panel according to claim 1, characterized in that: The first pixel circuit includes a virtual electrode, which is located on a side of the first conductive line away from the substrate and is electrically connected to the first conductive line.

11. The display panel according to claim 1, characterized in that: The display panel also includes: a plurality of third light-emitting elements and a plurality of third pixel circuits, wherein the third light-emitting elements and the third pixel circuits are located in the second region, and an arrangement density of the third light-emitting elements is greater than or equal to an arrangement density of the first light-emitting elements in the first region and the second light-emitting elements in the transition region.

12. The display panel according to claim 1, characterized in that: The light transmittance of the first conductive line and the second conductive line is greater than or equal to 50%.

13. The display panel according to claim 12, characterized in that: The first conductive line and the second conductive line are provided in the same layer and with the same material.

14. The display panel according to claim 13, characterized in that: The first conductive wire is an indium tin oxide wire or an indium zinc oxide wire; the second conductive wire is an indium tin oxide wire or an indium zinc oxide wire.

15. The display panel according to claim 1, characterized in that: The display panel further includes: At least one third conductive line, each of the third conductive lines connects at least one first pixel circuit and at least one first light-emitting element, and the third conductive lines and the first conductive lines are arranged in different layers.

16. The display panel according to claim 15, characterized in that: The first pixel circuit includes a virtual electrode, and the third conductive line is provided in the same layer and with the same material as the virtual electrode.

17. The display panel according to claim 16, characterized in that: The third conductive line is led out from the virtual electrode in the transition region that is closest to the first region, and is connected to the first light-emitting element in the first region that is closest to the transition region.

18. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 17.

19. The display device according to claim 18, characterized in that A camera element is disposed on the non-display side of the first area.

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