Display panel and display device

Abstract

A display panel, comprising a light-transmitting region, a display region, and a transition region located between the light-transmitting region and the display region. The display panel comprises a plurality of first data lines and a plurality of second data lines arranged in the display region. Each first data line comprises two first main body portions arranged opposite each other, a first connecting portion is connected between the two first main body portions, and the first connecting portion is located in the transition region. Each second data line comprises two second main body portions arranged opposite each other, a second connecting portion is connected between the two second main body portions, and the second connecting portion is located in the display region.

Description

Display panel and display device

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese patent application No. 202510072222.2, filed on January 16, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of display technology, specifically to a display panel and display device. Background Technology

[0004] Functional devices such as cameras, fingerprint recognition elements, and infrared sensing elements are placed in the light-transmitting area so that they can perform their respective functions.

[0005] In related technologies, display panels typically have a transition zone around the light-transmitting area for routing signal lines such as data cables. This transition zone ultimately becomes the bezel area of ​​the light-transmitting area and does not participate in the display. When a large number of data lines are arranged within the transition zone, the bezel area increases, affecting the screen-to-body ratio of the display panel. Invention Overview

[0006] The embodiments of this application aim to solve the problem in related technologies where the large number of data lines in the transition area results in a large screen ratio of the display panel.

[0007] On one hand, embodiments of this application provide a display panel having a light-transmitting area, a display area, and a transition area located between the light-transmitting area and the display area. The display panel includes multiple first data lines and multiple second data lines located in the display area. Each first data line includes two opposing first main bodies connected by a first connecting portion located in the transition area. Each second data line includes two opposing second main bodies connected by a second connecting portion located in the display area.

[0008] On the other hand, embodiments of this application also provide a display device, which includes the display panel described above. Beneficial effects

[0009] In the display panel provided in this application embodiment, since the second connecting part is disposed within the display area, the second connecting part winds around the display area to achieve the conduction of the second data line. This effectively reduces the number of first data lines and the number of first connecting parts, thereby reducing the area of ​​the transition zone occupied by the first connecting part and thus improving the screen-to-body ratio of the display panel. In addition, since the first connecting part is located within the transition zone, and the first connecting part winds around the transition zone to conduct the first data line, this also avoids the problem of an excessive number of second connecting parts within the display area affecting the image display in its area. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 is a schematic diagram of the structure of a display panel provided in some embodiments of this application;

[0012] Figure 2 is an enlarged structural diagram of region A in Figure 1;

[0013] Figure 3 is an enlarged structural diagram of region B in Figure 2;

[0014] Figure 4 is an enlarged structural diagram of region C in Figure 2;

[0015] Figure 5 is a cross-sectional view of a display panel provided in some embodiments of this application;

[0016] Figure 6 is a schematic diagram of the structure of a display device provided in some embodiments of this application. Embodiments of the present invention

[0017] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The described technical solutions are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0018] In the description of this application, it should be understood that the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words mean two or more, unless otherwise expressly defined.

[0019] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0020] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application.

[0021] Features in different embodiments and / or different examples in this application can be combined with each other.

[0022] Some embodiments of this application provide a display panel, as shown in FIG1. ​​The display panel 100 has a light-transmitting area 101, a display area 103, and a transition area 102 located between the light-transmitting area 101 and the display area 103. For example, the transition area 102 may surround the light-transmitting area 101, and the display area 103 may surround the transition area 102. The display area 103 is an area where pixels are set; by driving the pixels to turn on or off, the display panel 100 can display an image. The transition area 102 can provide space for signal traces such as data lines and gate signal lines to ensure signal transmission. No pixels are set in the light-transmitting area 101, thus achieving high light transmittance. Functional devices including at least one of a camera, a fingerprint recognition element, an infrared sensing element, and an earpiece may be set in the light-transmitting area 101, so that the display device on which the display panel 100 is applied can realize the functions corresponding to the respective functional devices.

[0023] As shown in Figures 2 to 4, the display panel 100 includes multiple first data lines 11 and multiple second data lines 12 located in the display area 103. Each first data line 11 includes two opposing first main bodies 111 connected by a first connecting portion 21 located in the transition area 102. Each second data line 12 includes two opposing second main bodies 121 connected by a second connecting portion 22 located in the display area 103.

[0024] In this case, since the second connecting part 22 is disposed within the display area 103, the second connecting part 22 winds around the display area 103 to enable the conduction of the second data line 12. This effectively reduces the number of first data lines 11 and the number of first connecting parts 21, thereby reducing the area of ​​the transition area 102 occupied by the first connecting part 21 and thus improving the screen-to-body ratio of the display panel 100. In addition, since the first connecting part 21 is located within the transition area 102, and the first connecting part 21 winds around the transition area 102 to enable the conduction of the first data line 11, this also avoids the excessive number of second connecting parts 22 within the display area 103, which could affect the display of the image in its area.

[0025] It is worth noting that after multiple second connecting portions 22 are provided within the display area 103, the multiple second connecting portions 22 are evenly arranged within the display area 103, which can easily form slits and produce grating diffraction, thus affecting the display image of the display panel 100. For a display panel 100 with a light-transmitting area 101 of the same size, the total number of first data lines 11 and second data lines 12 is constant. Since the first data lines 11 occupy a certain number, the number of second data lines 12 is relatively small, and therefore the number of second connecting portions 22 is also relatively small. In this way, by increasing the spacing between adjacent second connecting portions 22, slits can be avoided between the second connecting portions 22, and signal crosstalk that is easily generated between adjacent second connecting portions 22 can be alleviated, thereby improving the display quality of the display panel 100.

[0026] In some examples, the two first main body portions 111 of each first data line 11 are located on the same straight line, and the straight line passes through the transition region 102. The two ends of the first connecting portion 21 are respectively connected to the two first main body portions 111, thereby realizing the conduction of the first data line 11.

[0027] In some examples, the two second body portions 121 of each second data line 12 are located on the same straight line, and the straight line passes through the transition region 102. The two ends of the second connecting portion 22 are respectively connected to the two second body portions 121, thereby realizing the conduction of the second data line 12.

[0028] As an example, multiple first data lines 11 and multiple second data lines 12 can be arranged side by side.

[0029] In some examples, the display panel 100 also includes multiple third data lines 13, the extension direction of which avoids the transition area 102. That is, the third data lines 13 do not pass through the transition area 102. The first data line 11, the second data line 12, and the third data line 13 can input data signals to the pixels located in the display area 103 of the display panel 100, thereby driving the display panel 100 to display an image.

[0030] In some examples, the light-transmitting area 101 can be circular, elliptical, rectangular, or rounded rectangular. This application does not limit the shape of the light-transmitting area 101.

[0031] In some embodiments, as shown in FIG2, the number of first data lines 11 is less than or equal to the number of second data lines 12. This arrangement allows for a relatively larger number of second connection portions 22 wound in the display area 103 and a relatively smaller number of first connection portions 21 wound in the transition area 102, thereby helping to reduce the screen-to-body ratio of the display panel 100.

[0032] In one implementation, the number of first data lines 11 is less than the number of second data lines 12.

[0033] In another implementation, the number of first data lines 11 is equal to the number of second data lines 12.

[0034] It is worth noting that the relationship between the number of first data lines 11 and the number of second data lines 12 can be set according to the size of the light-transmitting area 101. When the light-transmitting area 101 has a small size, the total number of first data lines 11 and second data lines 12 is relatively small. In this case, more second data lines 12 can be set so that more second connecting parts 22 can be wound from the display area 103, thereby reducing the area of ​​the transition area 102. When the light-transmitting area 101 has a relatively large size, the total number of first data lines 11 and second data lines 12 is relatively large. If a large number of second data lines 12 are set, the area occupied by the second data lines 12 will be large, thereby affecting the display of the screen in the area. Therefore, this embodiment sets the number of first data lines 11 to be equal to the number of second data lines 12, thereby effectively reducing the screen ratio of the display panel 100 while ensuring that the display panel 100 has a good screen display effect.

[0035] In some embodiments, as shown in Figures 2 and 3, the second connecting portion 22 includes two first connecting segments 221 extending along a first direction X and a second connecting segment 222 connecting the two first connecting segments 221; the second main body portion 121 extends along a second direction Y, which intersects the first direction X. For example, the second direction Y is perpendicular to the first direction X.

[0036] The first connecting segment 221 and the second main body 121 are located in different film layers of the display panel 100. This arrangement effectively prevents the first connecting segment 221 from short-circuiting with the second main body 121 during wiring, thereby ensuring that different second data lines 12 can effectively transmit signals.

[0037] It is worth noting that, since the first connecting segment 221 and the second main body 121 are located in different film layers (e.g., metal layers), the first connecting segment 221 and the second main body 121 can be connected by a via in an insulating layer located between the two metal layers.

[0038] In some examples, the extension direction of the second connecting segment 222 is consistent with the extension direction of the second main body 121, which is beneficial for the wiring of the second connecting segment 222.

[0039] As an example, for a plurality of second connecting segments 222, the length of the second connecting segment 222 closer to the transition region 102 is less than the length of the second connecting segment 222 farther from the transition region 102. For example, for a plurality of second connecting segments 222, the length of the second connecting segments 222 gradually increases along the direction away from the transition region 102. This facilitates the wiring of the second connecting segments 222 so that the second connecting portion 22 can be connected to the corresponding two second main body portions 121.

[0040] In some examples, the length of the first connecting segment 221 connected to the second connecting segment 222 gradually increases along the direction away from the transition region 102. This facilitates the connection between the first connecting segment 221 and the second connecting segment 222.

[0041] In some embodiments, as shown in FIG2, the display panel 100 includes a plurality of third data lines 13 extending in a direction that avoids the transition region 102, and the third data lines 13 and the second connection segment 222 are respectively located in different film layers of the display panel 100.

[0042] The third data line 13 and the second connection segment 222 extend in roughly the same direction. By placing the third data line 13 and the second connection segment 222 in different film layers, it is beneficial to reduce the coupling capacitance formed between adjacent traces in the same film layer, thereby improving the crosstalk problem between the traces and enhancing the display effect of the display panel 100.

[0043] In some examples, the second connecting segment 222 and the first connecting segment 221 may be located in the same membrane layer or in different membrane layers, and the embodiments of this application do not limit this.

[0044] In some embodiments, as shown in Figures 2 and 3, a plurality of second connecting portions 22 are located on both sides of the light-transmitting area 101, and the plurality of second connecting portions 22 are symmetrical about the axis P of the display panel 100 passing through the geometric center of the light-transmitting area 101. That is, each second connecting portion 22 located on one side of the light-transmitting area 101 is symmetrical about the axis P to a corresponding second connecting portion 22 located on the other side of the light-transmitting area 101.

[0045] This arrangement effectively utilizes the space on both sides of the light-transmitting area 101 for wiring of the second connecting parts 22. Since the multiple second connecting parts 22 are symmetrical about axis P, this also improves the uniformity of the arrangement of the second connecting parts 22, thereby enhancing the display effect of the display panel 100.

[0046] In some embodiments, as shown in FIG2, a plurality of second data lines 12 are arranged side by side and include a first data line group 141 located in a first region and a second data line group 142 located in a second region, and a plurality of first data lines 11 are located between the first region and the second region.

[0047] This arrangement allows multiple first data lines 11 to be concentrated in one area, which is beneficial for the arrangement of the first connection part 21 used to realize the data transmission of the first data lines 11.

[0048] In some examples, multiple first connecting portions 21 are located on both sides of the light-transmitting area 101, and the multiple first connecting portions 21 are symmetrical about the axis P of the display panel 100. That is, each first connecting portion 21 located on one side of the light-transmitting area 101 is symmetrical about the axis P with a corresponding first connecting portion 21 located on the other side of the light-transmitting area 101. This arrangement can effectively utilize the space in the transition area 102 located on both sides of the light-transmitting area 101 for wiring of the first connecting portions 21. Since the multiple first connecting portions 21 are symmetrical about the axis P, this also improves the uniformity of the arrangement of the first connecting portions 21, thereby improving the display effect of the display panel 100.

[0049] In some examples, the first data line group 141 and the second data line group 142 are symmetrical about the axis P; the multiple first data lines 11 include a third data line group 143 and a fourth data line group 144, which are symmetrical about the axis P, and the number of first data lines 11 in the third data line group 143 is equal to the number of second data lines 12 in the first data line group 141.

[0050] As an example, the number of second data lines 12 in the first data line group 141, the number of second data lines 12 in the second data line group 142, the number of first data lines 11 in the third data line group 143, and the number of first data lines 11 in the fourth data line group 144 can be equal, thus making the total number of first data lines 11 equal to the total number of second data lines 12. This effectively reduces the screen-to-body ratio of the display panel 100 while ensuring that the display panel 100 has a good image display effect.

[0051] In some embodiments, the first connecting portion 21 and the first main body portion 111 are located in different film layers of the display panel 100.

[0052] Because the length of the first main body 111 varies at different locations, the resistance values ​​of the different first data lines 11 differ, which can easily lead to abnormalities in the display panel image. By placing the first main body 111 and the first connecting part 21 on different film layers, the first main body 111 and the first connecting part 21 can be made of different materials, which helps to ensure that the resistance values ​​of the first data lines 11 are approximately the same, thereby improving the display effect of the display panel 100.

[0053] In some examples, multiple first connection portions 21 can be located in multiple film layers, which increases the spacing between the first connection portions 21 and thus reduces the coupling capacitance formed between adjacent first connection portions 21 in the same film layer. In addition, since multiple first connection portions 21 are located in multiple film layers, this also helps to reduce the area of ​​the transition region 102 occupied by the first connection portions 21, thereby improving the screen-to-body ratio of the display panel 100.

[0054] In some examples, the first connecting portion 21 and the second connecting portion 22 are located in the same film layer of the display panel 100.

[0055] This configuration avoids the first connecting part 21 and the second connecting part 22 being located in different film layers, which would increase the number of film layers in the display panel 100, thereby reducing the thickness of the display panel 100 while lowering the manufacturing cost of the display panel 100.

[0056] It should be noted that when multiple first connecting portions 21 are located in multiple film layers, and multiple second connecting portions 22 are located in multiple film layers, the film layers used to arrange the first connecting portions 21 are also used to set the second connecting portions 22. In this way, the existing film layers can be effectively used to set the first connecting portions 21 and the second connecting portions 22, thereby reducing the thickness of the display panel 100 and reducing the manufacturing cost of the display panel 100.

[0057] To better explain the positions of the first main body portion 111 and the second main body portion 121 in the embodiments of this application, the film layer of the display panel 100 will be described below with reference to FIG5.

[0058] As shown in Figure 5, the display panel 100 includes: a first substrate 1011, a first buffer layer 1012, a second substrate 1013, a second buffer layer 1014, an active layer 1015, a first gate insulating layer 1016, a first gate layer 1017, a second gate insulating layer 1018, a second gate layer 1019, an interlayer insulating layer 1020, a first source-drain layer 1021, a first planarization layer 1022, a first metal layer 1023, a second planarization layer 1024, a second metal layer 1025, a third planarization layer 1026, an anode layer 1027, and a pixel definition layer 1028. The pixel definition layer 1028 has multiple openings for accommodating the light-emitting layer, and a cathode layer is provided on the side of the light-emitting layer away from the anode layer 1027. An encapsulation layer can also be provided on the side of the cathode layer away from the light-emitting layer. The encapsulation layer can seal the light-emitting element composed of the anode layer 1027, the light-emitting layer, and the cathode layer to prevent external moisture and oxygen from penetrating into the light-emitting element and the driving circuit used to drive the light-emitting element and causing damage to the device. For example, the encapsulation layer may include an organic thin film or a structure including alternating layers of organic and inorganic thin films.

[0059] In some examples, the first body portion 111, the second body portion 121, and the third data line 13 may be located within the first metal layer 1023.

[0060] In some examples, the first connecting segment 221 in the second connecting portion 22 may be located within the second metal layer 1025, and the second connecting segment 222 may be located in the first metal layer 1023, the second metal layer 1025, or other metal layers. This application embodiment does not limit this.

[0061] In some examples, the gate signal line connected to the pixel may include a connection line located in the transition region 102, thereby enabling the winding of the gate signal line. The connection line may be located in the first gate layer 1017 or the second gate layer 1019, and this application embodiment does not limit this.

[0062] In some embodiments, as shown in FIG2, the display panel 100 further includes a virtual electrode 31, which does not carry electrical signals. As an example, the virtual electrode 31 is at least partially disposed around the light-transmitting area 101 and is closest to the light-transmitting area 101 compared to other traces; that is, no trace is disposed on the side of the virtual electrode 31 closest to the light-transmitting area 101. The virtual electrode 31 can shield the photoelectric signals in the light-transmitting area 101 from interference with the electrical signals on the signal lines in the display area 103 and the transition area 102.

[0063] In some examples, the light-transmitting area 101 is configured to allow light from the display side of the display substrate to be transmitted to the opposite side of the display side for sensing, for example, visible light or infrared light. The dummy electrode 31 can shield the electrical signals outside the dummy electrode from interference by light passing through the light-transmitting area 101. As an example, the dummy electrode 31 can be annular and surround the light-transmitting area 101.

[0064] In some examples, the virtual electrode 31 and the third data line 13 are located in the same film layer, which reduces the distance between the virtual electrode 31 and the third data line 13, protecting the data signal in the third data line 13 from interference. In other examples, the virtual electrode 31 may also be located in other film layers of the display panel 100.

[0065] Some embodiments of this application also provide a display device, as shown in FIG6, the display device 200 including the display panel 100 described in any of the above embodiments.

[0066] Since it includes the display panel 100, the display device 200 has the technical effects of the display panel 100 described above, which will not be repeated here.

[0067] In some examples, the display device also includes a sensor 201. For example, the sensor 201 is disposed corresponding to the light-transmitting area 101 of the display panel 100 and on the backlight side of the display panel 100 (the opposite side to the display side). The sensor 201 is, for example, a photoelectric sensor, configured to receive light from the display side of the display panel 100 and convert the light into an electrical signal for forming an image. For example, the light travels from the display side through the light-transmitting area 101 to the sensor 201.

[0068] In some examples, the display device 200 also includes a cover plate disposed on the display panel 100, the cover plate being made of, for example, glass, to provide effective protection for the display panel 100.

[0069] In some examples, the display device 200 may be a digital photo frame, smart bracelet, smartwatch, mobile phone, tablet computer, monitor, laptop computer, navigator, or any other product or component with display functionality.

[0070] In summary, although the present application discloses the preferred embodiments as described above, the above preferred embodiments are not intended to limit the present application. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application is based on the scope defined by the claims.

Claims

1. A display panel having a light-transmitting area, a display area, and a transition area located between the light-transmitting area and the display area, the display panel comprising: Multiple first data lines located in the display area, each first data line comprising two first main bodies disposed opposite to each other, a first connecting portion connected between the two first main bodies, the first connecting portion being located in the transition area; as well as Multiple second data lines are located in the display area. Each second data line includes two second main bodies disposed opposite to each other, and a second connecting part is connected between the two second main bodies. The second connecting part is located in the display area.

2. The display panel according to claim 1, wherein, The number of the first data lines is less than or equal to the number of the second data lines.

3. The display panel according to claim 1, wherein, The second connecting portion includes two first connecting segments extending along a first direction and a second connecting segment connecting the two first connecting segments; the second main body extends along a second direction, which intersects with the first direction; the first connecting segments and the second main body are respectively located in different film layers of the display panel.

4. The display panel according to claim 3, wherein, The display panel also includes multiple third data lines located in the display area. The extension direction of the third data lines avoids the transition area. The third data lines and the second connection segment are respectively located in different film layers of the display panel.

5. The display panel according to any one of claims 1-4, wherein, Multiple second connecting portions are located on both sides of the light-transmitting area and are symmetrical about the axis of the display panel passing through the geometric center of the light-transmitting area.

6. The display panel according to any one of claims 1-4, wherein, Multiple second data lines are arranged side by side and include a first data line group located in a first area and a second data line group located in a second area, with the multiple first data lines located between the first area and the second area.

7. The display panel according to claim 6, wherein, The first data line group and the second data line group are symmetrical about the axis passing through the geometric center of the light-transmitting area of ​​the display panel; the multiple first data lines include a third data line group and a fourth data line group, the third data line group and the fourth data line group are symmetrical about the axis, and the number of first data lines in the third data line group is equal to the number of second data lines in the first data line group.

8. The display panel according to any one of claims 1-4, wherein, The first connecting portion and the first main body portion are respectively located in different film layers of the display panel.

9. The display panel according to claim 8, wherein, The first connecting portion and the second connecting portion are located in the same film layer of the display panel.

10. The display panel according to any one of claims 1-4, wherein, The display panel also includes: Multiple third data lines located in the display area, the extension direction of the third data lines avoiding the transition area; and A virtual electrode, the virtual electrode at least partially surrounding the light-transmitting region; The virtual electrode and the third data line are located in the same film layer of the display panel.

11. A display device comprising a display panel having a light-transmitting area, a display area, and a transition area between the light-transmitting area and the display area, the display panel comprising: Multiple first data lines located in the display area, each first data line comprising two first main bodies disposed opposite to each other, a first connecting portion connected between the two first main bodies, the first connecting portion being located in the transition area; as well as Multiple second data lines are located in the display area. Each second data line includes two second main bodies disposed opposite to each other, and a second connecting part is connected between the two second main bodies. The second connecting part is located in the display area.

12. The display device according to claim 11, wherein, The number of the first data lines is less than or equal to the number of the second data lines.

13. The display device according to claim 11, wherein, The second connecting portion includes two first connecting segments extending along a first direction and a second connecting segment connecting the two first connecting segments; the second main body extends along a second direction, which intersects with the first direction; the first connecting segments and the second main body are respectively located in different film layers of the display panel.

14. The display device according to claim 13, wherein, The display panel also includes multiple third data lines located in the display area. The extension direction of the third data lines avoids the transition area. The third data lines and the second connection segment are respectively located in different film layers of the display panel.

15. The display device according to any one of claims 11-14, wherein, Multiple second connecting portions are located on both sides of the light-transmitting area and are symmetrical about the axis of the display panel passing through the geometric center of the light-transmitting area.

16. The display device according to any one of claims 11-14, wherein, Multiple second data lines are arranged side by side and include a first data line group located in a first area and a second data line group located in a second area, with the multiple first data lines located between the first area and the second area.

17. The display device according to claim 16, wherein, The first data line group and the second data line group are symmetrical about the axis passing through the geometric center of the light-transmitting area of ​​the display panel; the multiple first data lines include a third data line group and a fourth data line group, the third data line group and the fourth data line group are symmetrical about the axis, and the number of first data lines in the third data line group is equal to the number of second data lines in the first data line group.

18. The display device according to any one of claims 11-14, wherein, The first connecting portion and the first main body portion are respectively located in different film layers of the display panel.

19. The display device according to claim 18, wherein, The first connecting portion and the second connecting portion are located in the same film layer of the display panel.

20. The display device according to any one of claims 11-14, wherein, The display panel also includes: Multiple third data lines located in the display area, the extension direction of the third data lines avoiding the transition area; and A virtual electrode, the virtual electrode at least partially surrounding the light-transmitting region; The virtual electrode and the third data line are located in the same film layer of the display panel.

Images