Display panel and display device

Abstract

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel provided by the invention comprises a substrate, a first electrode layer, a pixel definition layer, a light-emitting layer, a second electrode layer and a peripheral wire. The side, facing the first wiring part in the peripheral wiring, of the second electrode layer does not protrude out of the side, facing the first wiring part, of the pixel definition layer, so that in the first sub-area of the display panel, the second electrode layer is not in lap joint with the switching part in the first electrode layer any more, and the switching part in the second electrode layer is not in lap joint with the switching part in the second electrode layer any more. In this way, it is guaranteed that the area where the second electrode layer is in lap joint with the switching part does not need to be reserved in the first sub-area, then the width of the first sub-area can be reduced, the width of an upper frame of the display panel is small, and the screen-to-body ratio of the display panel is effectively increased.

Description

Technical Field

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

[0002] A display panel that uses organic light emitting diodes (OLED) to emit light to realize display functions is called an OLED display panel. It has become a mainstream display structure due to its high color gamut, lightness, and flexibility.

[0003] However, the border width of the current OLED display panel is relatively large, resulting in a relatively low screen-to-body ratio of the OLED display panel. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device, which can solve the problem of low screen-to-body ratio of display panels in the prior art. The technical solution is as follows:

[0005] On the one hand, a display panel is provided, the display panel having a display area and a non-display area located outside the display area, the non-display area comprising: a bending area and a first sub-area arranged opposite to each other in a first direction, and two second sub-areas arranged opposite to each other in a second direction; the first direction intersects with the second direction; the display area is located between the bending area and the first sub-area in the first direction, and between the two second sub-areas in the second direction; the display panel comprises: a substrate, a first electrode layer, a pixel definition layer, a light-emitting layer, a second electrode layer and peripheral wiring;

[0006] The first electrode layer, the pixel definition layer, the light emitting layer and the second electrode layer are stacked on one side of the substrate in a direction away from the substrate, and the first electrode layer, the pixel definition layer, the light emitting layer and the second electrode layer are at least located in the display area;

[0007] The peripheral wiring is distributed in the non-display area, and the peripheral wiring includes: a first wiring portion located in the first sub-area, and two second wiring portions respectively located in the two second sub-areas, and two ends of the first wiring portion are respectively connected to ends of the two second wiring portions;

[0008] The side of the second electrode layer facing the first wiring portion does not protrude beyond the side of the pixel definition layer facing the first wiring portion, and two sides of the second electrode layer oppositely arranged in the second direction are electrically connected to the two second wiring portions respectively.

[0009] Optionally, a side of the pixel definition layer facing the first wiring portion protrudes beyond a side of the second electrode layer facing the first wiring portion;

[0010] Alternatively, a side of the pixel definition layer facing the first wiring portion is flush with a side of the second electrode layer facing the first wiring portion.

[0011] Optionally, a side of the second electrode layer facing the first wiring portion protrudes beyond a side of the light-emitting layer facing the first wiring portion.

[0012] Optionally, a side of the light-emitting layer facing the first wiring portion protrudes beyond a side of the second electrode layer facing the first wiring portion, and a side of the light-emitting layer facing the first wiring portion does not protrude beyond a side of the pixel definition layer facing the first wiring portion.

[0013] Optionally, a side of the pixel definition layer facing the first wiring portion protrudes beyond a side of the light emitting layer facing the first wiring portion;

[0014] Alternatively, a side of the pixel definition layer facing the first wiring portion is flush with a side of the light emitting layer facing the first wiring portion.

[0015] Optionally, a side of the light emitting layer facing the first wiring portion is flush with a side of the second electrode layer facing the first wiring portion.

[0016] Optionally, the second electrode layer includes: a main body portion located in the display area, and a first protruding portion located in the first sub-area, wherein the first protruding portion is connected to the main body portion;

[0017] The orthographic projection of the first protrusion on the substrate is located within the orthographic projection of the pixel definition layer on the substrate.

[0018] Optionally, the second electrode layer further includes: two second protruding portions respectively located in the two second sub-regions, and the two second protruding portions are both connected to the main body;

[0019] Wherein, the two second protruding portions are electrically connected to the two second wiring portions respectively.

[0020] Optionally, the first electrode layer includes: a plurality of separately arranged electrode blocks located in the display area, and two first transition portions respectively located in the two second sub-areas, wherein the first transition portions are separately arranged from the electrode blocks;

[0021] The sides of the two first transition portions facing the substrate are in contact with the sides of the two second routing portions facing away from the substrate, and the sides of the two first transition portions facing away from the substrate are in contact with the sides of the two second protrusions facing the substrate.

[0022] Optionally, the first electrode layer further includes: a second transition portion located in the first sub-region, the second transition portion being disposed separately from the electrode block;

[0023] Wherein, a side of the second transfer portion facing the substrate contacts a side of the first routing portion facing away from the substrate.

[0024] Optionally, the display panel further includes: a first planar layer, the first planar layer being located on a side of the first electrode layer facing the substrate;

[0025] Wherein, a side of the first electrode layer facing the first wiring portion does not protrude beyond a side of the first flat layer facing the first wiring portion.

[0026] Optionally, the display panel further includes: a plurality of first signal lines arranged in parallel, the first signal lines being distributed at least within the display area, the extension direction of the first signal lines being parallel to the second direction, and the two ends of the first signal lines being electrically connected to the two second wiring portions respectively.

[0027] Optionally, the display panel also includes: a plurality of second signal lines arranged in parallel, the second signal lines are distributed at least within the display area, the extension direction of the second signal lines is parallel to the first direction, and the ends of the second signal lines are electrically connected to the first routing portions, and the second signal lines are also electrically connected to the first signal lines at the intersection position.

[0028] Optionally, the second signal line and at least part of the peripheral wiring are arranged in the same layer and made of the same material.

[0029] On the other hand, a display device is provided, comprising: a driving chip, and a display panel electrically connected to the driving chip, and the display panel is any of the above-mentioned display panels.

[0030] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0031] Since the second electrode layer is toward the side of the first routing portion in the peripheral routing and does not protrude beyond the side of the pixel definition layer toward the first routing portion, the second electrode layer no longer overlaps the transition portion in the first electrode layer in the first sub-region of the display panel, thereby ensuring that there is no need to reserve an area in the first sub-region where the second electrode layer and the transition portion overlap, thereby reducing the width of the first sub-region, making the upper frame width of the display panel smaller, and effectively improving the screen-to-body ratio of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 is a schematic diagram of a top view structure of a display panel;

[0034] Figure 2 yes Figure 1 The schematic diagram of the film structure of the display panel at AA' is shown;

[0035] Figure 3 yes Figure 1 The schematic diagram of the film structure of the display panel at position BB' is shown;

[0036] Figure 4 is a schematic diagram of a top view structure of a display panel provided in an embodiment of the present application;

[0037] Figure 5 yes Figure 4 A schematic diagram of a film layer structure of a display panel at CC' is shown;

[0038] Figure 6 yes Figure 4 Another schematic diagram of the film structure of the display panel at CC' is shown;

[0039] Figure 7 yes Figure 4 A schematic diagram of another film layer structure of a display panel at CC' is shown;

[0040] Figure 8 yes Figure 4 A schematic diagram of another film layer structure of a display panel at CC' is shown;

[0041] Fig. 9 yes Figure 4 A schematic diagram of another film layer structure of a display panel at CC' is shown;

[0042] Fig.10 yes Figure 4 A schematic diagram of another film layer structure of a display panel at CC' is shown;

[0043] Fig.11 yes Figure 4 A schematic diagram of a film layer structure of a display panel at EE' is shown;

[0044] Fig.12 yes Figure 4 A schematic diagram of another film layer structure of a display panel at CC' is shown;

[0045] Fig.13 yes Figure 4 A schematic diagram of another film layer structure of a display panel at CC' is shown;

[0046] Fig.14 is a schematic diagram of a top view structure of another display panel provided in an embodiment of the present application;

[0047] Fig.15 yes Figure 4 A schematic diagram of a film layer structure of a display panel at DD' is shown. DETAILED DESCRIPTION

[0048] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0049] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a top view structure of a display panel. The display panel 000 may have a display area 001 and a non-display area 002. Among them, the non-display area 002 is located outside the display area 001, and the non-display area 002 has a bending area 002a and a first sub-area 002b arranged opposite to each other in the first direction X, and two second sub-areas 002c arranged opposite to each other in the second direction Y. The display area 001 is located between the bending area 002a and the first sub-area 002b in the first direction, and between the two second sub-areas 002c in the second direction. Here, the first direction X intersects with the second direction Y. For example, the first direction X may be perpendicular to the second direction Y.

[0050] It should be noted that the portion of the display panel 000 where the bending area 002a is distributed can generally be called the lower frame of the display panel 000; the portion of the display panel 000 where the first sub-area 002b is distributed can generally be called the upper frame of the display panel 000; the portion of the display panel 000 where the two second sub-areas 002c are distributed can generally be called the left frame and the right frame of the display panel 000, respectively.

[0051] Please refer to Figure 2 , Figure 2 yes Figure 1 The display panel 000 may include a substrate 100 , a first electrode layer 200 , a pixel definition layer 300 , a light emitting layer 400 and a second electrode layer 500 .

[0052] Among them, the first electrode layer 200, the pixel definition layer 300, the light-emitting layer 400 and the second electrode layer 500 are stacked on one side of the substrate 100 along a direction away from the substrate 100, and the first electrode layer 200, the pixel definition layer 300, the light-emitting layer 400 and the second electrode layer 500 are at least located in the display area 001.

[0053] The first electrode layer 200 may include: a plurality of separately disposed electrode blocks 200 a located in the display area 001 .

[0054] The pixel definition layer 300 has multiple pixel openings K in the display area 001, and the multiple pixel openings K can correspond one-to-one to the multiple electrode blocks 200a in the first electrode layer 200. Therefore, the portion of the light-emitting layer 400 distributed in each pixel opening K can contact the corresponding electrode block 200a.

[0055] like Figure 2 As shown, for any pixel opening K in the display area 001, the electrode block 200a corresponding to the pixel opening K, and the light-emitting layer 400 and the portion of the second electrode layer 500 located in the pixel opening K can form a light-emitting device L. It should be noted that the electrode block 200a corresponding to the pixel opening K can be used as an anode in the light-emitting device, and the portion of the second electrode layer 500 located in the pixel opening K can be used as a cathode in the light-emitting device L.

[0056] It should be noted that the second electrode layer 500 in the display panel 000 is a film layer structure arranged in a whole layer, and the second electrode layer 500 can be used as a common electrode for a plurality of light emitting devices L. For this purpose, Figure 1 As shown, it is usually necessary to set a peripheral wiring 600 in the non-display area 002, and make the peripheral wiring 600 electrically connected to the second electrode layer 500, so that the second electrode layer 500 can access the signal through the peripheral wiring. Exemplarily, the peripheral wiring 600 can be a low-level power signal line, and the peripheral wiring 600 can provide a low-level power signal for the second electrode layer 500.

[0057] It should also be noted that, in order to ensure that the low-level power signal loaded on the second electrode layer 500 disposed in the entire layer has a better effect, it is usually necessary to allow the second electrode layer 500 to simultaneously access the power signal provided by the peripheral wiring 600 at the upper frame, left frame and right frame of the display panel 000. To this end, the peripheral wiring 600 needs to be distributed in the first sub-region 002b and the two second sub-regions 002c of the display panel 000. Since the second electrode layer 500 in the display panel 000 is far away from the peripheral wiring 600, the first electrode layer 200 can be used as a switching structure for connecting the two.

[0058] For example, Figure 1 As shown, the first electrode layer 200 may further include: a transition portion 200b, which may be distributed in the first sub-region 002b and the two second sub-regions 002c of the display panel 000, and the transition portion 200b may be separately arranged from each electrode block 200a in the first electrode layer 200. In this way, after the transition portion 200b is overlapped with the peripheral wiring 600, the peripheral wiring 600 will not apply a signal to each electrode block 200a to ensure that there is no short circuit between the anode and the cathode in the light-emitting device 200. And the portion of the second electrode layer 500 located in the first sub-region 002b and the two second sub-regions 002c may be overlapped with the transition portion 200b. In this way, the electrical connection between the peripheral wiring 600 and the second electrode layer 500 can be achieved through the transition of the transition portion 200b.

[0059] However, if Figure 3 As shown, Figure 3 yes Figure 1 The schematic diagram of the film structure of the display panel at BB' is shown. In the first sub-region 002b of the display panel 000, since the second electrode layer 500 needs to be electrically connected to the transition part 200b by overlapping, and the transition part 200b also needs to be electrically connected to the peripheral wiring 600 by overlapping, and the overlap width between the second electrode layer 500 and the transition part 200b is usually large. Therefore, the width of the first sub-region 002b will be large, which will in turn cause the width of the upper frame of the display panel 000 to be large. For this reason, the screen-to-body ratio of this display panel 000 is low.

[0060] In order to improve the screen-to-body ratio of the display panel 000, the embodiment of the present application provides a display panel with a smaller upper frame width. Figure 4 and Figure 5 , Figure 4 is a schematic diagram of a top view structure of a display panel provided in an embodiment of the present application, Figure 5 yes Figure 4A schematic diagram of a film layer structure of a display panel at CC' is shown. The peripheral routing 600 in the display panel 000 needs to be distributed in the first sub-area 002b and the two second sub-areas 002c of the non-display area 002. To this end, the peripheral routing 600 may include: a first routing portion 601 located in the first sub-area 002b, and two second routing portions 602 respectively located in the two second sub-areas 002c. Among them, the two ends of the first routing portion 601 are respectively connected to the ends of the two second routing portions 602. That is, a second routing portion 602 distributed at the left frame position of the display panel 000, a first routing portion 601 distributed at the upper frame position, and a second routing portion 602 distributed at the right frame position can be sequentially connected as a whole.

[0061] In the embodiments of the present application, Figure 5 As shown, the side of the second electrode layer 500 facing the first wiring portion 601 does not protrude from the side of the pixel definition layer 300 facing the first wiring portion 601. Figure 4 As shown, two opposite sides of the second electrode layer 500 arranged in the second direction Y are electrically connected to two second wiring portions 602 in the peripheral wiring 600 respectively.

[0062] In the case where the side of the second electrode layer 500 facing the first wiring portion 601 does not protrude from the side of the pixel definition layer 300 facing the first wiring portion 601, in the first sub-region 002b of the display panel 000, the second electrode layer 500 no longer overlaps with the transition portion 200b in the first electrode layer 200, so as to ensure that there is no need to reserve an area in the first sub-region 002b where the second electrode layer 500 overlaps with the transition portion 200b, thereby reducing the width of the first sub-region 002b and making the width of the upper frame of the display panel 000 smaller. In this way, the screen-to-body ratio of the display panel 000 can be effectively improved.

[0063] It should be noted that, in the first sub-region 002b of the display panel 000, if the second electrode layer 500 is no longer overlapped with the transition portion 200b in the first electrode layer 200, the second electrode layer 500 will not be connected to the low-level power signal provided by the peripheral wiring 600 at the upper frame of the display panel 000. In this case, it is necessary to make the two sides of the second electrode layer 500 that are oppositely arranged in the second direction Y electrically connected to the two second wiring portions 602 in the peripheral wiring 600 respectively, so as to ensure that the second electrode layer 500 can normally access the low-level power signal provided by the peripheral wiring 600 at the left frame and the right frame of the display panel 000.

[0064] It should also be noted that after the driving component is bound to the bending area of ​​the display panel 000, the ends of the two second wiring parts 602 that are away from the first wiring part 601 can simultaneously access the low-level power signal provided by the driving component 002a through the wiring arranged in the bending area 002a. Since the two second wiring parts 602 in the peripheral wiring 600 can be connected as a whole through the first wiring part 601, after the two second wiring parts 602 are simultaneously connected to the low-level power signal, the low-level power signal connected to the two second wiring parts 602 can be better balanced through the first wiring part 601, so that the two second wiring parts 602 can better provide the second electrode layer 500 with a low-level power signal with a potential balance.

[0065] In summary, the display panel provided by the present application includes: a substrate, a first electrode layer, a pixel definition layer, a light-emitting layer, a second electrode layer and a peripheral wiring. Since the side of the second electrode layer facing the first wiring portion in the peripheral wiring does not protrude from the side of the pixel definition layer facing the first wiring portion, the second electrode layer no longer overlaps with the transition portion in the first electrode layer in the first sub-region of the display panel, so as to ensure that there is no need to reserve an area in the first sub-region where the second electrode layer overlaps with the transition portion, thereby reducing the width of the first sub-region, making the width of the upper frame of the display panel smaller, and effectively improving the screen-to-body ratio of the display panel.

[0066] In the present application, there are multiple ways to implement the positional relationship between the second electrode layer 200 and the pixel definition layer 300 in the display panel 000. For example, the side of the pixel definition layer 300 facing the first wiring portion 601 can protrude from the side of the second electrode layer 500 facing the first wiring portion 601. For another example, the side of the pixel definition layer 300 facing the first wiring portion 601 can also be flush with the side of the second electrode layer 500 facing the first wiring portion 601. In addition, there are also multiple ways to implement the positional relationship between the second electrode layer 200 and the light-emitting layer 400 in the display panel 000. To this end, the embodiments of the present application will be schematically described using the following three possible implementations as examples:

[0067] In the first possible implementation, Figure 5 and Figure 6 As shown, a side of the second electrode layer 500 facing the first wiring portion 601 may protrude beyond a side of the light emitting layer 400 facing the first wiring portion 601 .

[0068] In this case, if Figure 5 As shown, the side of the pixel definition layer 300 facing the first wiring portion 601 may protrude from the side of the second electrode layer 500 facing the first wiring portion 601. Alternatively, as Figure 6As shown, the side of the pixel definition layer 300 facing the first wiring portion 601 may also be flush with the side of the second electrode layer 500 facing the first wiring portion 601 .

[0069] The second possible implementation is Figure 7 and Figure 8 As shown, the side of the light emitting layer 400 facing the first wiring portion 601 may protrude from the side of the second electrode layer 500 facing the first wiring portion 601, and the side of the light emitting layer 400 facing the first wiring portion 601 does not protrude from the side of the pixel definition layer 300 facing the first wiring portion 601. Here, there are two possible situations in which the side of the light emitting layer 400 facing the first wiring portion 601 does not protrude from the side of the pixel definition layer 300 facing the first wiring portion 601.

[0070] In the first possible case, if Figure 7 As shown, the side of the light emitting layer 400 facing the first wiring portion 601 may be flush with the side of the pixel definition layer 300 facing the first wiring portion 601 .

[0071] In the second possible case, if Figure 8 As shown, a side of the pixel definition layer 300 facing the first wiring portion 601 may protrude beyond a side of the light emitting layer 400 facing the first wiring portion 601 .

[0072] It should be noted that when the side of the light-emitting layer 400 facing the first wiring portion 601 protrudes beyond the side of the second electrode layer 500 facing the first wiring portion 601, the side of the pixel definition layer 300 facing the first wiring portion 601 will protrude beyond the side of the second electrode layer 500 facing the first wiring portion 601.

[0073] The third possible implementation is Fig. 9 and Fig.10 As shown, the side of the second electrode layer 500 facing the first wiring portion 601 may also be flush with the side of the light emitting layer 400 facing the first wiring portion 601 .

[0074] In this case, if Fig. 9 As shown, the side of the pixel definition layer 300 facing the first wiring portion 601 may protrude from the side of the second electrode layer 500 facing the first wiring portion 601, and may protrude from the side of the light emitting layer 400 facing the first wiring portion 601. Alternatively, as Fig.10 As shown, the side of the pixel definition layer 300 facing the first wiring portion 601 may be flush with the side of the second electrode layer 500 facing the first wiring portion 601 , and may be flush with the side of the light emitting layer 400 facing the first wiring portion 601 .

[0075] It should be noted that, in any embodiment of the present application, the second electrode layer 500 may include: a main body 500a located in the display area 001, and a first protruding portion 501 located in the first sub-area 002b. The first protruding portion 501 is connected to the main body 500a. Since the side of the second electrode layer 500 facing the first wiring portion 601 does not protrude from the side of the pixel definition layer 300 facing the first wiring portion 601, the orthographic projection of the first protruding portion 501 on the substrate 100 can be located within the orthographic projection of the pixel definition layer 300 on the substrate 100, so as to ensure that there is no electrical connection between the first protruding portion 501 and the first wiring portion 601 in the peripheral wiring 600.

[0076] In the embodiments of the present application, Fig.11 As shown, Fig.11 yes Figure 4 The second electrode layer 500 may further include: two second protruding portions 502 located in the two second sub-regions 002c, respectively. The second protruding portions 502 are also connected to the main body 500a. The two second protruding portions 502 are electrically connected to the two second wiring portions 602 in the peripheral wiring 600, respectively.

[0077] Exemplarily, the two second protrusions 502 may be electrically connected to the two second routing portions 602 respectively through the transition portion 200b of the first electrode layer 200. For example, the transition portion 200b of the first electrode layer 200 may include: two first transition portions 201 respectively located in the two second sub-regions 002c, and the two first transition portions 201 are both separately arranged from each electrode block 200a in the first electrode layer 200.

[0078] Among them, the side of the second protrusion 502 facing the substrate 100 contacts the side of the first adapter 201 facing away from the substrate 100, and the side of the first adapter 201 facing the substrate 100 contacts the side of the second routing portion 602 facing away from the substrate 100, thereby realizing electrical connection between the two second protrusions 502 and the two second routing portions 602.

[0079] In the embodiment of the present application, the transition part 200b of the first electrode layer 200 may further include: a second transition part 202 located in the first sub-region 002b, and the second transition part 202 is also separated from each electrode block 200a in the first electrode layer 200. Here, both ends of the second transition part 202 may be connected to the ends of the two first transition parts 201 respectively. Figures 5 to 10As shown, the second transfer portion 202 can protrude from the side of the pixel definition layer 300 facing the first routing portion 601, so that the second transfer portion 200 can overlap with the first routing portion 601, that is, the side of the second transfer portion 202 facing the substrate 100 is in contact with the side of the first routing portion 601 facing away from the substrate 100.

[0080] It should be noted that in other possible implementations, since in the present application, the second electrode layer 500 is no longer overlapped with the transition portion 200b in the first electrode layer 200 in the first sub-region 002b of the display panel 000, that is, the overlap between the first protruding portion 501 and the first wiring portion 601 is cancelled. Therefore, the overlap between the second transition portion 202 and the first wiring portion 601 can also be cancelled. In this case, the second transition portion 202 in the second electrode layer 200 is no longer in contact with the first wiring portion 601 in the peripheral wiring 600.

[0081] For example, Fig.12 As shown, the display panel 000 may further include: a first flat layer 800, and the first flat layer 800 is located on the side of the first electrode layer 200 facing the substrate 100. In this case, the side of the first electrode layer 200 facing the first wiring portion 601 does not protrude from the side of the first flat layer 800 facing the first wiring portion 601, that is, the orthographic projection of the second transition portion 202 on the substrate 100 is located within the orthographic projection of the first flat layer 800 on the substrate 100.

[0082] In one possible scenario, Fig.12 As shown in FIG. 1 , the side of the first electrode layer 200 facing the first wiring portion 601 is flush with the side of the first planar layer 800 facing the first wiring portion 601. In another possible case, as Fig.13 As shown, a side of the first planar layer 800 facing the first wiring portion 601 protrudes beyond a side of the first electrode layer 200 facing the first wiring portion 601 .

[0083] When the second adapter portion 202 is not in contact with the first routing portion 601, there is no need to reserve an area in the first sub-region 002b where the second adapter portion 202 and the first routing portion 601 overlap, and the width of the first routing portion 601 can be further reduced to further reduce the width of the upper frame of the display panel 000, thereby further improving the screen-to-body ratio of the display panel 000.

[0084] Please refer to Fig.14 , Fig.14000 is a schematic diagram of a top view structure of another display panel provided by an embodiment of the present application. The display panel 000 may also include: a plurality of first signal lines 603 arranged in parallel, the first signal lines 603 are at least distributed in the display area 001, the extension direction of the first signal lines 603 is parallel to the second direction Y, and the two ends of the first signal lines 603 are respectively electrically connected to the two second wiring parts 602. The first signal line 603 can reduce the resistance of the peripheral wiring 600, reduce the voltage drop of the peripheral wiring 600, and ensure the uniformity of the power signal transmitted from the second wiring part 602 to the second protruding part 502 through the first adapter part 201, thereby ensuring the light-emitting effect of the light-emitting device L and improving the display effect of the display panel 000.

[0085] The display panel 000 may further include: a plurality of second signal lines 604 arranged in parallel, the second signal lines 604 are at least distributed in the display area 001, the extension direction of the second signal lines 604 is parallel to the first direction X, and the ends of the second signal lines 604 are electrically connected to the first wiring portion 601, and the second signal lines 604 are also electrically connected to the first signal lines 603 at the intersection. The second signal lines 604 can further reduce the resistance of the peripheral wiring 600, reduce the voltage drop of the peripheral wiring 600, and ensure the uniformity of the power signal transmitted from the second wiring portion 602 to the second protruding portion 502 through the first adapter portion 201, thereby ensuring the light-emitting effect of the light-emitting device L and improving the display effect of the display panel 000.

[0086] like Fig.15 As shown, Fig.15 yes Figure 4 The display panel 000 may further include: a buffer layer 101, an active layer 102, a first gate insulating layer 103, a first gate layer 104, a second gate insulating layer 105, a second gate layer 106, an interlayer dielectric layer 107, a first source-drain electrode layer 108, a second planar layer 109, and a second source-drain electrode layer 110 stacked between the substrate 100 and the first planar layer 800.

[0087] The active layer 102, the first gate layer 104, the second gate layer 106, the first source-drain electrode layer 108, and the second source-drain electrode layer 110 are used to form a pixel driving circuit electrically connected to the light-emitting device 200, and various signal lines electrically connected to the pixel driving circuit. The pixel driving circuit can be electrically connected to the electrode block 200a in the light-emitting device L.

[0088] The peripheral routing 600 in the display panel 000 may be a double-layer routing, and the peripheral routing 600 may include a first sub-peripheral routing and a second sub-peripheral routing stacked in a direction away from the substrate 100, wherein the first sub-peripheral routing may belong to a part of the first source and drain layer 108, and the second sub-peripheral routing may belong to a part of the second source and drain layer 110.

[0089] In one possible case of the present application, the first source-drain electrode layer 108 can also be used to form a first signal line 603, and the second source-drain electrode layer 110 can also be used to form a second signal line 604. In this case, the first signal line 603 is provided in the same layer and made of the same material as the first sub-peripheral routing, and the second signal line 604 is provided in the same layer and made of the same material as the second sub-peripheral routing.

[0090] In another possible case of the present application, the first gate layer 104 and / or the second gate layer 106 may also be used to form the first signal line 603, and the first source-drain layer 108 and / or the second source-drain layer 110 may also be used to form the second signal line 604. In this case, the second signal line 604 may be provided in the same layer and with the same material as the first sub-peripheral routing or the second sub-peripheral routing.

[0091] It should be noted that, since the second electrode layer 500 has a high resistance value and a serious voltage drop, the display panel 000 may further include: a plurality of auxiliary electrodes. Here, the plurality of auxiliary electrodes may be located in the display area 001, and one auxiliary electrode may be located between two adjacent light-emitting devices L. The main body 500a of the second electrode layer 500 may contact the plurality of auxiliary electrodes, and each auxiliary electrode may be electrically connected to the first signal line 603 and / or the second signal line 604. Since the two ends of the first signal line 603 are electrically connected to the two second routing portions 602 respectively, and the end of the second signal line 604 is electrically connected to the first routing portion 601, the power signal provided by the auxiliary electrode to the main portion 500a inside the display area 001 and the power signal provided to the second protruding portion 502 at the peripheral routing 600 are relatively balanced. The voltage at each position in the second electrode layer 500 can be balanced through multiple auxiliary electrodes, effectively solving the problem of unbalanced power signal caused by serious voltage drop in the second electrode layer 500, ensuring the light-emitting effect of the light-emitting device L, and thus improving the display effect of the display panel 000.

[0092] In the embodiments of the present application, Figure 3 and Figures 5 to 13As shown, the display panel 000 may further include: an encapsulation layer 700, which is located on the side of the second electrode layer 500 away from the substrate 100, and the encapsulation layer 700 may be used to encapsulate each light-emitting device L, so that water and oxygen in the external environment are not easy to corrode the inside of the light-emitting device L and damage the light-emitting device L. The encapsulation layer 700 includes at least one organic encapsulation layer and multiple inorganic encapsulation layers.

[0093] Since organic materials have strong fluidity and strong water absorption, in order to avoid the invasion of water and oxygen from the outside, the display panel 000 also includes: a retaining wall 900, which can be located in the non-display area 002 and can be distributed around the display area 001. Here, the number of retaining walls 900 is usually at least one. In the case where the number of retaining walls 900 is multiple, multiple retaining walls 900 can be nested in sequence in the non-display area 002. Exemplarily, the number of retaining walls 900 in the display panel 000 is one, which is distributed around the display area 001. The retaining wall 900 can effectively block the flow of the organic encapsulation layer, preventing the organic encapsulation layer from entering the side of the retaining wall 900 away from the display area 001, affecting the encapsulation effect.

[0094] In the display panel 000 , since the second electrode layer 500 is formed by an evaporation process, a shadow effect exists during the evaporation process. Therefore, a shadow area exists when the second electrode layer 500 is formed. The shadow area includes an inner shadow area and an outer shadow area.

[0095] The outer shadow area will cause the actually formed second electrode layer 500 to exceed the designed evaporation area, so a certain distance is required between the side of the second electrode layer 500 away from the display area 001 and the retaining wall 900. Exemplarily, since the side of the first protrusion 501 in the second electrode layer 500 facing the first wiring portion 601 will not protrude beyond the side of the pixel definition layer 300 facing the first wiring portion 601, the side of the second protrusion 502 in the second electrode layer 500 facing the second wiring portion 602 will protrude beyond the side of the pixel definition layer 300 facing the second wiring portion 602. Therefore, it is necessary to ensure that there is a certain distance between the side of the second protrusion 502 away from the main body 500a and the retaining wall 900 distributed around the display area 001. The setting of this distance should take into account the manufacturing accuracy of the mask plate in the process, the process alignment accuracy and the area of ​​the outer shadow area, so as to prevent the outer shadow area of ​​the second electrode layer 500 from entering the retaining wall 900 and the area on the side of the retaining wall 900 away from the display area 001, thereby affecting the blocking effect of the retaining wall 900 on the organic encapsulation layer and causing encapsulation failure. When there are multiple retaining walls, the retaining wall 900 refers to the retaining wall closest to the display area 001.

[0096] The inner shadow area will result in that although the second electrode layer 500 is evaporated in the evaporation area, the thickness of the second electrode layer 500 in the inner shadow area is thin and uneven, which affects the transmission of the power signal and thus affects the light-emitting effect of the light-emitting device L in the display area 001. Therefore, the side of the second electrode layer 500 away from the display area 001 needs to have a certain distance from the boundary of the display area 001. Exemplarily, the first protrusion 501 and the second protrusion 502 of the second electrode layer 500 need to have a certain width on the side away from the main body 500a and the boundary of the display area 001. The setting of the width should take into account the manufacturing accuracy of the mask plate, the process alignment accuracy and the area of ​​the inner shadow area in the process, so that the thickness of the main body 500a of the second electrode layer 500 is uniform, thereby ensuring the display effect of the display panel 000.

[0097] In summary, the display panel provided by the present application includes: a substrate, a first electrode layer, a pixel definition layer, a light-emitting layer, a second electrode layer and a peripheral wiring. Since the side of the second electrode layer facing the first wiring portion in the peripheral wiring does not protrude from the side of the pixel definition layer facing the first wiring portion, the second electrode layer no longer overlaps with the transition portion in the first electrode layer in the first sub-region of the display panel, so as to ensure that there is no need to reserve an area in the first sub-region where the second electrode layer overlaps with the transition portion, thereby reducing the width of the first sub-region, making the width of the upper frame of the display panel smaller, and effectively improving the screen-to-body ratio of the display panel.

[0098] The present application also provides a display device, which includes: a driver chip, and a display panel 000 electrically connected to the driver chip. The display panel 000 may include any of the display panels 000 given above. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, an advertising machine, a display screen, a digital photo frame, etc.

[0099] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0100] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0101] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel has a display area and a non-display area located outside the display area, the non-display area includes: a bending area and a first sub-area arranged opposite to each other in a first direction, and two second sub-areas arranged opposite to each other in a second direction; the first direction intersects with the second direction; the display area is located between the bending area and the first sub-area in the first direction, and is located between the two second sub-areas in the second direction; the display panel includes: a substrate, a first electrode layer, a pixel definition layer, a light-emitting layer, a second electrode layer and peripheral wiring; The first electrode layer, the pixel definition layer, the light emitting layer and the second electrode layer are stacked on one side of the substrate in a direction away from the substrate, and the first electrode layer, the pixel definition layer, the light emitting layer and the second electrode layer are at least located in the display area; The peripheral wiring is distributed in the non-display area, and the peripheral wiring includes: a first wiring portion located in the first sub-area, and two second wiring portions respectively located in the two second sub-areas, and two ends of the first wiring portion are respectively connected to ends of the two second wiring portions; The side of the second electrode layer facing the first wiring portion does not protrude beyond the side of the pixel definition layer facing the first wiring portion, and two sides of the second electrode layer oppositely arranged in the second direction are electrically connected to the two second wiring portions respectively.

2. The display panel according to claim 1, characterized in that: A side of the pixel definition layer facing the first wiring portion protrudes beyond a side of the second electrode layer facing the first wiring portion; Alternatively, a side of the pixel definition layer facing the first wiring portion is flush with a side of the second electrode layer facing the first wiring portion.

3. The display panel according to claim 2, characterized in that: A side of the second electrode layer facing the first wiring portion protrudes beyond a side of the light emitting layer facing the first wiring portion.

4. The display panel according to claim 2, characterized in that: The side of the light emitting layer facing the first wiring portion protrudes beyond the side of the second electrode layer facing the first wiring portion, and the side of the light emitting layer facing the first wiring portion does not protrude beyond the side of the pixel definition layer facing the first wiring portion.

5. The display panel according to claim 4, characterized in that: The side of the pixel definition layer facing the first wiring portion protrudes from the side of the light emitting layer facing the first wiring portion; Alternatively, a side of the pixel definition layer facing the first wiring portion is flush with a side of the light emitting layer facing the first wiring portion.

6. The display panel according to claim 2, characterized in that: A side of the light emitting layer facing the first wiring portion is flush with a side of the second electrode layer facing the first wiring portion.

7. The display panel according to any one of claims 1 to 6, characterized in that: The second electrode layer includes: a main body portion located in the display area, and a first protruding portion located in the first sub-area, wherein the first protruding portion is connected to the main body portion; The orthographic projection of the first protrusion on the substrate is located within the orthographic projection of the pixel definition layer on the substrate.

8. The display panel according to claim 7, characterized in that: The second electrode layer further includes: two second protrusions respectively located in the two second sub-regions, and the two second protrusions are both connected to the main body; Wherein, the two second protruding portions are electrically connected to the two second wiring portions respectively.

9. The display panel according to claim 8, characterized in that: The first electrode layer comprises: a plurality of electrode blocks disposed separately in the display area, and two first transfer portions disposed respectively in the two second sub-areas, wherein the first transfer portions are disposed separately from the electrode blocks; The sides of the two first transition portions facing the substrate are in contact with the sides of the two second routing portions facing away from the substrate, and the sides of the two first transition portions facing away from the substrate are in contact with the sides of the two second protrusions facing the substrate.

10. The display panel according to claim 9, characterized in that: The first electrode layer further includes: a second transition portion located in the first sub-region, the second transition portion being disposed separately from the electrode block; Wherein, a side of the second transfer portion facing the substrate contacts a side of the first routing portion facing away from the substrate.

11. The display panel according to any one of claims 1 to 6, 8 to 9, characterized in that: The display panel further includes: a first flat layer, the first flat layer being located on a side of the first electrode layer facing the substrate; Wherein, a side of the first electrode layer facing the first wiring portion does not protrude beyond a side of the first flat layer facing the first wiring portion.

12. The display panel according to any one of claims 1 to 6 and 8 to 10, characterized in that: The display panel further includes: a plurality of first signal lines arranged in parallel, the first signal lines are distributed at least in the display area, the extension direction of the first signal lines is parallel to the second direction, and two ends of the first signal lines are electrically connected to the two second wiring portions respectively.

13. The display panel according to claim 12, characterized in that: The display panel also includes: a plurality of second signal lines arranged in parallel, the second signal lines are distributed at least in the display area, the extension direction of the second signal lines is parallel to the first direction, and the ends of the second signal lines are electrically connected to the first routing portions, and the second signal lines are also electrically connected to the first signal lines at the intersection positions.

14. The display panel according to claim 13, characterized in that: The second signal line and at least a portion of the peripheral wiring are disposed in the same layer and made of the same material.

15. A display device, characterized in that: include: A driving chip, and a display panel electrically connected to the driving chip, wherein the display panel is the display panel according to any one of claims 1 to 14.

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