CN115411083A - Display panel and display device - Google Patents

Abstract

The embodiment of the invention discloses a display panel and a display device, wherein the display panel comprises a display area and a non-display area, and the non-display area is at least positioned on one side of the display area; the display area comprises a plurality of data lines, and the non-display area comprises a plurality of bonding pads; the data lines extend along a first direction, the data lines are arranged along a second direction, and the first direction and the second direction are intersected; the display panel also comprises a connecting wire which is respectively electrically connected with the bonding pad and the data wire; the connecting wire comprises a first wire distribution part and a second wire distribution part which are arranged in different layers and are mutually connected, and the extending direction of the first wire distribution part is intersected with the extending direction of the second wire distribution part. This embodiment is through the first wiring subsection and the second wiring subsection different layer setting of walking the line to be connected, avoids influencing display panel's the demonstration equilibrium because of the first connection flex point that walks line subsection and second and walk line subsection and exist when the layer is the same floor, and the display panel that this embodiment provided avoids connecting the appearance of flex point promptly to promote display panel's display effect.

Description

Display panel and display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.

Background

In recent years, in order to increase the resolution and the screen occupation ratio of the display panel, the routing arrangement of partial areas in the display panel is more and more intensive, which causes the display difference of the display panel as a whole and affects the display effect of the display panel.

Disclosure of Invention

The embodiment of the invention provides a display panel and a display device, wherein a first routing subsection and a second routing subsection which are connected with a routing are arranged in different layers, so that the occurrence of a connection inflection point existing when the first routing subsection and the second routing subsection are on the same layer is avoided, and the display effect of the display panel is improved.

In a first aspect, an embodiment of the present invention provides a display panel, including a display area and a non-display area, where the non-display area is located at least on one side of the display area;

the display area comprises a plurality of data lines, and the non-display area comprises a plurality of bonding pads; the data lines extend along a first direction, the data lines are arranged along a second direction, and the first direction and the second direction are intersected;

the display panel further comprises a connecting wire, and the connecting wire is electrically connected with the bonding pad and the data wire respectively; the connecting wire comprises a first wire distribution part and a second wire distribution part which are arranged in different layers and are mutually connected, and the extending direction of the first wire distribution part is intersected with the extending direction of the second wire distribution part.

In a second aspect, an embodiment of the present invention provides a display device, including the display panel described in any one of the first aspects.

The display panel provided by the embodiment of the invention comprises a display area and a non-display area, wherein the display area comprises a plurality of data lines, the non-display area comprises a plurality of bonding pads, and the data lines and the bonding pads are electrically connected by connecting wires included in the display panel. Furthermore, the connection routing comprises a first routing subsection and a second routing subsection, wherein the extending direction of the first routing subsection is intersected with the extending direction of the second routing subsection, and the first routing subsection and the second routing subsection are arranged in different layers and are connected with each other. The first routing subsection and the second routing subsection which are connected and routed in the display panel are arranged in different layers, the phenomenon that the display balance of the display panel is affected by the connection inflection point existing when the first routing subsection and the second routing subsection are on the same layer is avoided, namely the display panel provided by the embodiment avoids the connection inflection point, and therefore the display effect of the display panel is improved.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another display panel according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of another display panel according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of another display panel according to an embodiment of the present invention;

FIG. 11 is a schematic view of a cross-sectional structure of FIG. 9 taken along the direction BB';

FIG. 12 is a schematic cross-sectional view taken along the direction CC' of FIG. 1;

FIG. 13 is a schematic view of another cross-sectional configuration taken along direction CC' in FIG. 1;

FIG. 14 is a schematic view of another cross-sectional configuration taken along direction CC' in FIG. 1;

fig. 15 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and referring to fig. 1, the embodiment of the present invention provides a display panel 10, where the display panel 10 includes a display area 110 and a non-display area 120, and the non-display area 120 is at least located on one side of the display area 110; the display area 110 includes a plurality of data lines 100, and the non-display area 120 includes a plurality of pads 200; the data lines 100 extend along a first direction X, and the plurality of data lines 100 are arranged along a second direction Y, the first direction X intersecting the second direction Y; the display panel 10 further includes a connection trace 300, wherein the connection trace 300 is electrically connected to the pad 200 and the data line 100, respectively; the connection trace 300 includes a first trace branch 310 and a second trace branch 320 that are disposed in different layers and connected to each other, and an extending direction of the first trace branch 310 intersects an extending direction of the second trace branch 320.

Specifically, the display panel 10 includes a display area 110 and a non-display area 120, and the display area 110 includes sub-pixels (not specifically shown in the figure) and display signal lines, such as data lines 100, connected to the sub-pixels for implementing the display function of the display panel 10. The non-display area 120 includes a plurality of pads 200 connected to the display signal lines, and the display panel 10 provides the display signal to the data lines 100 through the pads 200, so as to drive the display panel 10 to implement the display function. For example, as shown in fig. 1, the non-display area 120 may be a lower frame area located at one side of the display area 110. The embodiment of the present invention does not specifically limit the positional relationship between the display area 110 and the non-display area 120.

Further, referring to fig. 1, the display panel 10 further includes a connection trace 300, and the data line 100 located in the display area 110 and the pad 200 located in the non-display area 120 can be electrically connected through the connection trace 300, so as to ensure signal transmission, and further realize a display function of the display panel 10. Specifically, referring to fig. 1, the connection trace 300 is to ensure the electrical connection between the data line 100 and the pad 200, and the connection trace extends to the display area 110 of the display panel 10 to reduce the area of the non-display area 120 of the display panel 10, i.e., to increase the occupation ratio of the display area 110 in the display panel 10, and the connection trace 300 is disposed in the display area 110 to effectively ensure the narrow-frame effect of the display panel 10.

Further, the connection trace 300 includes a first trace branch 310 and a second trace branch 320, i.e., the data line 100 is connected to the pad 200 through the first trace branch 310 and the second trace branch 320 whose extending directions intersect. If the first routing sub-portion 310 and the second routing sub-portion 320 are disposed on the same layer, a connection inflection point needs to be disposed to ensure the connection between the first routing sub-portion 310 and the second routing sub-portion 320, but the display effect of the display panel 10 is affected by the existence of the plurality of connection inflection points. Therefore, in the embodiment of the invention, the first routing sub-portion 310 and the second routing sub-portion 320 are disposed in different layers, and the first routing sub-portion 310 and the second routing sub-portion 320 disposed in different layers can be connected by a punching process without connecting inflection points, so that the problem that the display uniformity of the display panel 10 is affected due to the connection of the first routing sub-portion 310 and the second routing sub-portion 320 is fundamentally solved, and the display effect of the display panel 10 is further improved.

To sum up, in the display panel provided in the embodiment of the present invention, the connection trace of the display panel includes the first trace subsection and the second trace subsection, the extending direction of the first trace subsection intersects with the extending direction of the second trace subsection, and the first trace subsection and the second trace subsection are arranged in different layers and are connected to each other. The first routing subsection and the second routing subsection which are connected and routed in the display panel are arranged in different layers, the phenomenon that the display balance of the display panel is affected by the connection inflection point existing when the first routing subsection and the second routing subsection are on the same layer is avoided, namely the display panel provided by the embodiment avoids the connection inflection point, and therefore the display effect of the display panel is improved.

With continued reference to fig. 1, the display panel 10 further includes a first central axis a, the first central axis a covers the center a of the display panel 10 and extends along the second direction Y; among the plurality of second trace subdivisions 320, a part of the second trace subdivisions 320 are located at a side of the first central axis a away from the non-display area 120, and a part of the second trace subdivisions 320 are located at a side of the first central axis a close to the non-display area 120.

As shown in fig. 1, the delay direction of the first central axis a is the same as the second direction Y, and the first central axis a covers the center a of the display panel 10, that is, the areas of the display panel 10 on the upper and lower sides of the first central axis a are the same or similar. Further, a part of the second routing sub-portion 320 is located on a side of the first central axis a away from the non-display area 120, and a part of the second routing sub-portion 320 is located on a side of the first central axis a close to the non-display area 120, that is, the second routing sub-portion 320 is distributed in the display area 110 of the whole display panel 10, so that the distribution of the routing in the display panel 10 can be uniform, the density difference of the second routing distribution 320 in the display panel 10 is reduced, the display influence of the display panel 10 due to the routing density difference is weakened, and the display effect of the display panel 10 is ensured. Further, the second routing sub-portions 320 are tiled in the display area 110 of the whole display panel 10, so that the distance between two adjacent second routing sub-portions 320 in the first direction X can be increased, the crosstalk of routing signals between different second routing sub-portions 320 is reduced, the signal transmission effect is ensured, and the display effect of the display panel 10 is also ensured.

Fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the invention, and referring to fig. 2, a plurality of second trace subsections 320 are uniformly disposed in the display area 110 along the extending direction of the data line 100.

The second routing sub-portions 320 may be uniformly disposed in the display area 110, that is, the distance between any two second routing sub-portions 320 is the same or approximately the same, as shown in fig. 2, the density difference of routing distribution in the display panel 10 is further reduced, and meanwhile, the signal crosstalk between different second routing sub-portions 320 is further reduced, so as to ensure the display effect of the display panel 10 as a whole.

Illustratively, the display panel 10 includes a plurality of sub-pixels (not specifically shown) arranged in an array along rows and columns, i.e., a first direction X and a second direction Y, and the sub-pixels are arranged to realize display luminescence of the display panel 10. The adjacent second trace branches 320 may include the same number of rows of sub-pixels, for example, each second trace branch 320 is separated by 5 rows of sub-pixels, which is not specifically limited in this embodiment of the invention.

Fig. 3 is a schematic structural diagram of another display panel provided in an embodiment of the present invention, fig. 4 is a schematic structural diagram of another display panel provided in an embodiment of the present invention, fig. 5 is a schematic structural diagram of another display panel provided in an embodiment of the present invention, fig. 6 is a schematic structural diagram of another display panel provided in an embodiment of the present invention, referring to fig. 3 to 6, the display panel 10 further includes a second central axis b, the second central axis b covers the center a of the display panel 10, and the second central axis b extends along the first direction X; the display panel 10 includes 2M connection traces 300; the 2M second routing subdivisions 320 are sequentially arranged along the first direction X, and the 2M first routing subdivisions 310 are sequentially arranged along the second direction Y; m is not less than 1 and is an integer; wherein, the first routing sub-sections 310 (M1 in the figure) to the mth first routing sub-sections 310 (M3 in the figure or M in the figure) are located on the same side of the second central axis b, and the (M + 1) th first routing sub-sections 310 (M4 in the figure or M +1 in the figure) to the 2 mth first routing sub-sections 310 (M6 in the figure) are located on the same side of the second central axis b; when i is less than or equal to M, the ith first routing subsection 310 is electrically connected with the (2 j-1) th second routing subsection 320; wherein i and j are positive integers; when i > M, the ith first trace branch 310 is electrically connected to the (2 j) th second trace branch 320.

As shown in fig. 3 to 6, the extending direction of the second central axis a is the same as the first direction X, and the second central axis b covers the center a of the display panel 10, that is, the areas of the display panels 10 on the left and right sides of the second central axis a are the same or similar. Further, the first routing sub-portions 310 are uniformly distributed on two sides of the second central axis b, so that the density difference of the first routing sub-portions 310 in the display panel 10 can be reduced, the display effect of the display panel 10 due to the display influence caused by the routing density difference of the display panel 10 is weakened, and the display effect of the display panel 10 is ensured.

Further, referring to fig. 3 to fig. 6, the display panel 10 includes 2M connection traces 300, for example, M =3 is taken as an example in the figures to illustrate, that is, the display panel 10 includes 6 connection traces 300, and the number of the connection traces is not specifically limited in the embodiment of the present invention. The first routing sub-portions 310 (M1 in the figure) to the mth first routing sub-portions 310 (M3 in the figure or M in the figure) are located on the same side of the second central axis b, and the (M + 1) th first routing sub-portions 310 (M4 in the figure or M +1 in the figure) to the 2 mth first routing sub-portions 310 (M6 in the figure) are located on the same side of the second central axis b, i.e. the 6 connecting traces 300 are distributed on two sides of the second central axis b in a balanced number.

Further, referring to fig. 3 to 6, when i is less than or equal to M, the ith first routing branch 310 is electrically connected to the (2 j-1) th second routing branch 320, and when i is greater than M, the ith first routing branch 310 is electrically connected to the (2 j) th second routing branch 320. For example, taking M =3 as an example, that is, the first 3 first routing partitions 310 are respectively electrically connected to the odd-numbered second routing partitions 320, and the 4 th to 6 th first routing partitions 310 are respectively electrically connected to the even-numbered second routing partitions 320, as shown in fig. 3, the first routing partition 310 (M1 in the figure) is connected to the first second routing partition 320 (s 1 in the figure), and the fourth first routing partition 310 (M4 in the figure) is connected to the fourth second routing partition 320 (s 4 in the figure). The description of the various cases is omitted here. The arrangement mode can ensure that two first routing portions 310 adjacently arranged in the second direction Y are electrically connected with two second routing portions 320 which are not adjacent in the first direction X, or two second routing portions 320 adjacently arranged in the first direction X are electrically connected with two first routing portions 310 which are not adjacent in the second direction Y, so that the distance between different connection via holes can be ensured to be larger. Moreover, the first trace sub 310 located at different sides of the second central axis b is electrically connected to the odd number of second trace sub 320 and the even number of second trace sub 320 respectively, so as to ensure that the connecting vias of the first connecting trace sub 310 and the second connecting trace sub 320 are uniformly distributed in the whole display area. The connection via holes with large distance and uniform distribution between two adjacent connection via holes can ensure simple implementation mode of the via hole process, avoid increasing difficulty of the via hole process due to small distance between the via holes, and ensure balanced overall display effect of the display panel 10.

Optionally, continuing with FIG. 3, when i ≦ M, j = i; when i > M, j = i-M.

Referring to fig. 3, taking M =3 as an example, when i is not greater than M, i is the first three connecting traces 300, and the i-th first trace subsection 310 is electrically connected to the (2 j-1) th second trace subsection 320, and j = i at the same time, for example, j =1,2j-1=1 when i =1, the 1-th first connecting trace subsection 310 (M1 in the drawing) is electrically connected to the 1-th second trace subsection 320 (s 1 in the drawing), and j =2,2j-1=3 when i =2, the 2-th first connecting trace subsection 310 (M2 in the drawing) is electrically connected to the 3-th second trace subsection 320 (s 3 in the drawing), and j =3,2j-1=5 when i =3, the 3-rd first connecting trace 310 (M3 in the drawing) is electrically connected to the 5-th second trace subsection 320 (s 5 in the drawing). Meanwhile, when i > M, the i-th first trace subsection 310 is electrically connected to the (2 j) th second trace subsection 320, and j = i-M, for example, i =4, j = i-M =1,2j =2, then the 4-th first connection trace subsection 310 (M4 in the drawing) is electrically connected to the 2-th second trace subsection 320 (s 2 in the drawing), i =5, j = i-M =2,2j =4, then the 5-th first connection trace subsection 310 (M5 in the drawing) is electrically connected to the 4-th second trace subsection 320 (s 4 in the drawing), i =6, j = i-M =3,2j =6, then the 6-th first connection trace subsection 310 (M6 in the drawing) is electrically connected to the 6-th second trace subsection 320 (s 6 in the drawing). By adopting the connection mode of the first routing subsection 310 and the second routing subsection 320 provided by this embodiment, it can be further ensured that the connection via holes corresponding to any two adjacent second routing subsections 320 have a larger distance in the second direction Y on the premise of ensuring the balance of the connection via hole settings, that is, the distribution density of the connection via holes is reduced, the problems of complicated via hole process and influence on display caused by the concentrated setting of the connection via holes are avoided, the process difficulty of the display panel 10 is reduced, and the display effect of the display panel 10 is improved simultaneously

Optionally, with continued reference to FIG. 4, when i ≦ M, j = i; when i > M, j =2M-i +1.

Referring to fig. 4, taking M =3 as an example, when i is not greater than M, i is the first three connecting traces 300, and the ith first trace subsection 310 is electrically connected to the (2 j-1) th second trace subsection 320, if j = i at the same time, for example, j =1,2j-1=1 is when i =1, the 1 st first connecting trace subsection 310 (M1 in the drawing) is electrically connected to the 1 st second trace subsection 320 (s 1 in the drawing), and j =2,2j-1=3 is when i =2, the 2 nd first connecting trace subsection 310 (M2 in the drawing) is electrically connected to the 3 rd second trace subsection 320 (s 3 in the drawing), and j =3,2j-1=5 is when i =3, the 3 rd first connecting trace 310 (M3 in the drawing) is electrically connected to the 5 th second trace subsection 320 (s 5 in the drawing). Meanwhile, when i > M, the i-th first trace subsection 310 is electrically connected to the (2 j) th second trace subsection 320, and j =2M-i +1, for example, i =4,j =2m-i +1=3,2j =6, then the 4-th first connecting trace subsection 310 (M4 in the drawing) is electrically connected to the 6-th second trace subsection 320 (s 6 in the drawing), i =5,j =2m-i +1=2,2j =4, then the 5-th first connecting trace subsection 310 (M5 in the drawing) is electrically connected to the 4-th second trace subsection 320 (s 4 in the drawing), i =6, j =2m-i +1=1,2j =2, then the 6-th first connecting trace 310 (M6 in the drawing) is electrically connected to the 2-th second trace subsection 320 (s 2 in the drawing). By adopting the connection mode of the first routing subsection 310 and the second routing subsection 320 provided by this embodiment, it can be further ensured that the connection via holes corresponding to two adjacent second routing subsections 320 have the largest distance in the second direction Y on the premise of ensuring the balance of the connection via hole settings, the distribution density of the connection via holes is reduced to the maximum extent, and the simple process of the via holes and the good display effect are ensured to the maximum extent. Taking fig. 4 as an example, in an area of the first central axis a away from the non-display area, the connecting vias corresponding to two adjacent second routing sub-portions 320 have a larger pitch in the second direction Y, that is, an area with a smaller via distribution density, and the display area may be a fine display area or an area with a larger requirement for display uniformity, so as to ensure a fine display requirement or a balanced display area, and ensure a versatility or an individualized display requirement of the display panel 10.

Alternatively, as shown with reference to FIG. 5, when i ≦ M, j = M-i +1; when i > M, j = i-M.

Referring to fig. 5, taking M =3 as an example, when i is not greater than M, the first three connection traces 300 are obtained, and the i-th first trace subsection 310 is electrically connected to the (2 j-1) th second trace subsection 320, if j = M-i +1, for example, i =1, j = M-i +1=3,2j-1=5, the 1-th first connection trace subsection 310 (M1 in the drawing) is electrically connected to the 5-th second trace subsection 320 (s 5 in the drawing), and i =2, j = M-i +1=2,2j-1=3, the 2-th first connection subsection 310 (M2 in the drawing) is electrically connected to the 3-th second trace subsection 320 (s 3 in the drawing), and when i =3, j = M-i +1=1,2j-1=1, the 3-th first connection subsection 310 (M3) is electrically connected to the second trace subsection 1 (s 3) in the drawing.

Meanwhile, when i > M, the i-th first trace subsection 310 is electrically connected to the (2 j) th second trace subsection 320, and j = i-M, for example, i =4, j = i-M =1,2j =2, then the 4-th first connection trace subsection 310 (M4 in the drawing) is electrically connected to the 2-th second trace subsection 320 (s 2 in the drawing), i =5, j = i-M =2,2j =4, then the 5-th first connection trace subsection 310 (M5 in the drawing) is electrically connected to the 4-th second trace subsection 320 (s 4 in the drawing), i =6, j = i-M =3,2j =6, then the 6-th first connection trace subsection 310 (M6 in the drawing) is electrically connected to the 6-th second trace subsection 320 (s 6 in the drawing). By adopting the connection mode of the first routing subsection 310 and the second routing subsection 320 provided by this embodiment, it can be further ensured that the connection via holes corresponding to two adjacent second routing subsections 320 have the largest distance in the second direction Y on the premise of ensuring the balance of the connection via hole settings, the distribution density of the connection via holes is reduced to the maximum extent, and the simple process of the via holes and the good display effect are ensured to the maximum extent. Taking fig. 5 as an example, in the area of the side of the first central axis a away from the non-display area, the connecting vias corresponding to two adjacent second routing sub-portions 320 have a larger pitch in the second direction Y, that is, the area with the smaller via distribution density, and the display area may be a fine display area or an area with a larger requirement on display uniformity, so as to ensure a fine display requirement or a balanced display area, and ensure the versatility or the personalized display requirement of the display panel 10

Alternatively, as shown with reference to FIG. 6, when i ≦ M, j = M-i +1; when i > M, j =2M-i +1.

Referring to fig. 6, taking M =3 as an example, when i is not greater than M, the first three connection traces 300 are obtained, and the i-th first trace subsection 310 is electrically connected to the (2 j-1) th second trace subsection 320, if j = M-i +1, for example, i =1, j = M-i +1=3,2j-1=5, the 1-th first connection trace subsection 310 (M1 in the drawing) is electrically connected to the 5-th second trace subsection 320 (s 5 in the drawing), and i =2, j = M-i +1=2,2j-1=3, the 2-th first connection subsection 310 (M2 in the drawing) is electrically connected to the 3-rd second trace subsection 320 (s 3 in the drawing), and when i =3, j = M-i +1=1,2j-1=1, the 3-th first connection subsection 310 (M3) is electrically connected to the second trace subsection 1 (s 3) in the drawing.

Meanwhile, when i > M, the i-th first trace subsection 310 is electrically connected to the (2 j) th second trace subsection 320, and j =2M-i +1, for example, i =4, j =2m-i +1=3,2j =6, then the 4-th first connection trace subsection 310 (M4 in the drawing) is electrically connected to the 6-th second trace subsection 320 (s 6 in the drawing), i =5, j =2m-i +1=2,2j =4, then the 5-th first connection trace subsection 310 (M5 in the drawing) is electrically connected to the 4-th second trace subsection 320 (s 4 in the drawing), i =6, j =2m-i +1=1,2j =2, then the 6-th first connection trace 310 (M6 in the drawing) is electrically connected to the 2-th second trace subsection 320 (s 2 in the drawing). By adopting the connection mode of the first routing subsection 310 and the second routing subsection 320 provided by this embodiment, it can be further ensured that the connection via holes corresponding to any two adjacent second routing subsections 320 have a larger distance in the second direction Y on the premise of ensuring the balance of the connection via hole setting, that is, the distribution density of the connection via holes is reduced, the problems of complex via hole process and influence on display caused by the concentrated setting of the connection via holes are avoided, the process difficulty of the display panel 10 is reduced, and the display effect of the display panel 10 is improved.

With continued reference to fig. 3 to fig. 6, the second routing subsection 320 is electrically connected to the first routing subsection 310 through the first connecting via 330, and is electrically connected to the data line 100 through the second connecting via 340; there are two second routing subdivisions 320 corresponding to the same distance between the first connecting via 330 and the second connecting via 340.

The display panel 10 has a first connection via 330 and a second connection via 340, the first connection via 330 is used for electrically connecting the first routing sub-section 310 and the second routing sub-section 320, the second connection via 340 is used for electrically connecting the second routing sub-section 320 and the data line 100, and by setting the two types of vias, the data line 100 is electrically connected with the pad 200 through the connection trace 300, so that stable transmission of signals of the display panel 10 is ensured, and further, the display effect of the display panel 10 is ensured.

Further, referring to fig. 1 to fig. 6, by adjusting the connection relationship between the first routing sub-section 310 and the second routing sub-section 320 at different positions, the first connection through holes 330 are distributed evenly, so as to avoid the concentration of the through holes, and further weaken the influence of the through holes on the display effect of the display panel 10. Meanwhile, there are two second routing sub-sections 320 corresponding to the first connecting vias 330 and the second connecting vias 340 that have the same distance, that is, there is a distribution trend of the second connecting vias 340 that is the same as the distribution trend of the first connecting vias 330, and then under the condition that the first connecting vias 330 are distributed uniformly, the second connecting vias 340 are distributed uniformly, so as to further ensure the display effect of the display panel 10.

Further, as shown in fig. 3 to fig. 6, the distances between the first connecting via holes 330 and the second connecting via holes 340 corresponding to any two second routing sub-sections 320 are the same, so that the distribution trend of the second connecting via holes 340 is completely the same as the distribution trend of the first connecting via holes 330, and further, under the condition that the distribution of the first connecting via holes 330 is balanced, the distribution of the second connecting via holes 340 is also balanced, so as to further ensure the display effect of the display panel 10.

Fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 7, the display area 100 further includes a plurality of scan lines 400; the extending direction of the first routing subsection 310 is the same as the extending direction of the data line 100, the extending length of the first routing subsection 310 is L1, the extending length of the data line 100 is L2, wherein | L2-L1|/L1 is less than or equal to 20%; the extending direction of the second trace sub-portion 320 is the same as the extending direction of the scan line 400, the extending length of the second trace sub-portion 320 is L3, and the extending length of the scan line 400 is L4, wherein L4-L3/L3 is less than or equal to 20%.

Further, the extending directions of the data line 100 and the first trace subsection 310 are the same, the extending length of the first trace subsection 310 is L1, and the extending length of the data line 100 is L2, where L2-L1/L1 |/L1 is less than or equal to 20%, that is, the extending length of the first trace subsection 310 is similar to or the same as the extending length of the data line 100. Meanwhile, the display panel 10 further includes scan lines 400, as shown in fig. 7, only a part of the scan lines 400 is shown in the figure, which is only used for showing the relationship between the scan lines 400 and the extending lengths of the second routing subsection 320, that is, the number of the scan lines 400 is not specifically limited in the embodiment of the present invention. The extension length of the second trace branch 320 is L3, and the extension length of the scan line 400 is L4, wherein | L4-L3|/L3 is less than or equal to 20%, that is, the extension length of the second trace branch 320 is similar to or the same as the extension length of the scan line 400. In other words, the extension lengths of the connection traces 300 in different directions in the display panel 10 are the same as or similar to the extension lengths of other traces in the display panel 10, such as the scan lines 400 and the data lines 100, so as to ensure the uniform distribution of the traces in the display panel 10, meanwhile, the first connection traces 310 and the second connection traces 320 of the connection traces 300 are disposed in the display panel 10 in a whole, and the first connection traces 310 and the second connection traces 320 are disposed in different layers, that is, there are connection traces in the directions around the first connection vias 330 for electrical connection. And the connection inflection point that exists when the same layer of setting of line is walked in the different directions can not appear, display panel 10 can not receive the connection inflection point and have the not good condition of demonstration promptly, and then the whole display effect of better assurance display panel 10.

Optionally, fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 8, the first routing subsection 310 and the second routing subsection 320 are connected to each other through the first connection via 330, the display panel 10 may further include a plurality of virtual traces 500 extending along the first direction X and the second direction Y, and the virtual traces 500 are located at two sides of the first connection via 330 that are not connected to the connection traces 300. Illustratively, the left side and the lower side of the first connection via 330 are electrically connected to the first trace subsection 310 and the second trace subsection 320, respectively, and the right side and the upper side of the first connection via 330 are electrically connected to the dummy trace 500, respectively, and the embodiment of the present invention does not limit the specific connection manner. Further, the set virtual trace 500 can be connected to a fixed potential signal end, so as to ensure that the potential in the trace is not affected by other signals and does not interfere with other signals; on the other hand, the resistance loss in the signal transmission process in the fixed signal end routing can be reduced, and the signal transmission effect in the display panel 10 is improved.

Fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention, in which the display panel 10 further includes a dummy trace 500; there is at least one virtual connection trace 500 disposed between two second trace branches 320, and the extending direction of the virtual connection trace 500 is the same as the extending direction of the second trace branches 320.

The display panel 10 further includes a dummy connection trace 500, and the dummy connection trace 500 does not affect the normal signal transmission in the display panel 10. And the virtual connection wiring 500 is arranged to realize that the connection wiring 300 is uniformly distributed in the display panel 10 as a whole, so that the density of wiring in different areas is uniform, the difference of light reflectivity in different areas in the display panel 10 due to unbalanced wiring setting is avoided, and the unbalanced display effect of the display panel 10 is avoided.

Further, the extending direction of the virtual connection trace 500 is the same as the extending direction of the second trace branches 320, that is, the setting direction of the virtual connection trace 500 is the same as the setting direction of the second trace branches 320, and at least one virtual connection trace 500 is arranged between two second trace branches 320, for example, referring to fig. 9, one virtual connection trace 500 is arranged between two adjacent second trace branches 320, and the setting number of the virtual connection trace 500 is not specifically limited in the embodiment of the present invention.

Fig. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention, and referring to fig. 10, the display area 10 further includes a plurality of scan lines 400; the extending direction of the dummy trace 500 is the same as the extending direction of the scan line 400, the extending length of the dummy trace 500 is L5, and the extending length of the scan line 400 is L4, wherein L4-L5/L5 is less than or equal to 20%.

The display panel 10 further includes scan lines 400, and as shown in fig. 10, only a part of the scan lines 400 is shown in the figure, which is only used to indicate the relationship between the scan lines 400 and the extension lengths of the scan lines 400, that is, the number of the scan lines 400 is not specifically limited in the embodiment of the present invention. The extension length of the virtual connecting trace 500 is L5, the extension length of the scan line 400 is L4, wherein | L4-L5|/L5 is less than or equal to 20%, that is, the extension length of the virtual connecting trace 500 is similar to or the same as the extension length of the scan line 400, so as to ensure the uniform distribution of the traces in the display panel 10, and further better ensure the overall display effect of the display panel 10.

Further, as shown in fig. 9 and 10, the dummy connection trace 500 is electrically connected to the fixed potential signal terminal.

In order to avoid that the normal transmission of the display signal is influenced by sensing other signals when the virtual connection wire 500 is in a floating arrangement, the potential of the virtual connection wire 500 can be adjusted, for example, the virtual connection wire 500 is electrically connected with a fixed potential end, so that on one hand, the fixed potential signal is transmitted on the virtual connection wire 500, the potential is not influenced by other signals, and the interference to other signals is avoided; on the other hand, when the virtual connecting trace 500 is electrically connected to the fixed potential end, the resistance loss during signal transmission of the fixed signal end trace can be reduced, and the signal transmission effect of the display panel 10 can be improved.

It should be noted that, in the embodiment of the present invention, the setting position of the fixed potential end is not specifically limited, and the fixed potential end may be a positive voltage signal, a negative voltage signal, a reference voltage signal, or the like.

Fig. 11 is a schematic cross-sectional view along the direction BB' in fig. 9, and referring to fig. 11, the dummy connection trace 500 and the second trace subsection 320 are disposed at the same layer.

As shown in fig. 11, the display panel 10 further includes an array substrate 600, the array substrate 600 includes a pixel circuit 130, and the pixel circuit 130 includes a transistor 131; the driving transistor 131 includes an active layer, a gate layer, a capacitor layer, a source/drain, an interlayer insulating layer, an insulating layer, and the like, which are stacked, and those skilled in the art can adaptively adjust the film layer according to actual requirements.

Further, the dummy connection traces 500 may be disposed on the same layer as the second trace branches 320 in the display panel 10, as shown in fig. 11, the thickness of the display panel 10 may be reduced, which is convenient for implementing a thin design of the display panel 10.

Fig. 12 is a schematic cross-sectional view taken along the direction CC 'in fig. 1, and fig. 13 is a schematic cross-sectional view taken along the direction CC' in fig. 1, and referring to fig. 12 and 13, the data line 100 and the first routing subsection 310 are disposed in the same layer.

As shown in fig. 12, the display panel 10 further includes an array substrate 600, the array substrate 600 includes a pixel circuit 130, and the pixel circuit 130 includes a driving transistor 131; the driving transistor 131 includes an active layer, a gate layer, a capacitor layer, a source/drain, an interlayer insulating layer, an insulating layer, and the like, which are stacked, and those skilled in the art can adaptively adjust the film layer according to actual requirements.

Further, the data lines 100 may be disposed on the same layer as the first routing sub-portion 310 in the display panel 10, as shown in fig. 12, so as to reduce the thickness of the display panel 10, thereby facilitating the thin design of the display panel 10. And the data lines 100 and the first routing subsection 310 are connected to the second routing subsection 320 by punching, and the punching process can be performed together, i.e. the process manufacturing cost of the display panel 10 is also reduced.

Alternatively, the data lines 100 may be disposed in a different layer from the first routing subsection 310 in the display panel 10, as shown in fig. 13, that is, the arrangement of the data lines 100 and the first routing subsection 310 has a variety. It should be noted that fig. 12 and fig. 13 are only used to illustrate the position relationship of the data line 100 and the film layer where the first trace subsection 310 is located, and the specific film layer where the data line 100 and the first trace subsection 310 are located is not limited in the embodiment of the present invention.

Fig. 14 is another schematic cross-sectional structure view along direction CC' in fig. 1, and referring to fig. 14, the display panel 10 further includes a power signal line 700 located in the display area 110; the first trace subsection 310 at least partially overlaps the power signal line 700 along the thickness direction h of the display panel 10.

Further, referring to fig. 14, the display panel 10 further includes a power signal line 700, and the first routing subsection 310 and the power signal line 700 are overlapped in the thickness direction of the display panel 10, so that the occupied space of the display panel 10 in the arrangement direction along the first routing subsection 310 or the power signal line 700 is effectively reduced, the occupied space of the routing in the display panel 10 is further reduced, the arrangement space of the sub-pixels is increased, and the display panel 10 is favorable for achieving a higher display resolution. Moreover, the power signal transmitted in the power signal line 700 is a fixed potential signal, so that the first trace subsection 310 and the power signal line 700 are at least partially overlapped along the thickness direction h of the display panel 10, the overlapped first trace subsection 310 does not interfere with the power signal transmitted in the power signal line 700, and the interference of the power signal with the fixed potential to the signal transmitted in the first trace subsection 310 is small or does not interfere, thereby ensuring the normal transmission of the signal and the normal display of the display panel.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, fig. 15 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and as shown in fig. 15, the display device 1 includes the display panel 10 described in any of the embodiments above, so that the display device 1 provided in the embodiment of the present invention has the corresponding beneficial effects in the embodiments above, and details are not repeated here. For example, the display device 1 may be an electronic device such as a mobile phone, a computer, a smart wearable device (e.g., a smart watch), and an on-vehicle display device, which is not limited in this embodiment of the present invention.

It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.

Claims (17)

1. A display panel is characterized by comprising a display area and a non-display area, wherein the non-display area is at least positioned on one side of the display area;

the display area comprises a plurality of data lines, and the non-display area comprises a plurality of bonding pads; the data lines extend along a first direction, the data lines are arranged along a second direction, and the first direction and the second direction are intersected;

the display panel further comprises connecting wires which are electrically connected with the bonding pads and the data wires respectively; the connecting wire comprises a first wire distribution part and a second wire distribution part which are arranged in different layers and are mutually connected, and the extending direction of the first wire distribution part is intersected with the extending direction of the second wire distribution part.

2. The display panel according to claim 1, wherein the display panel further comprises a first central axis covering a center of the display panel and extending in the second direction;

among the plurality of second routing sub-portions, part of the second routing sub-portions are located on one side of the first central axis far away from the non-display area, and part of the second routing sub-portions are located on one side of the first central axis close to the non-display area.

3. The display panel according to claim 2, wherein the second routing subsections are uniformly disposed in the display area along the extending direction of the data line.

4. The display panel according to claim 1, wherein the display panel further comprises a second central axis that covers a center of the display panel and extends in the first direction;

the display panel comprises 2M connecting wires; the 2M second routing subsections are sequentially arranged along the first direction, and the 2M first routing subsections are sequentially arranged along the second direction; m is not less than 1 and is an integer; wherein the first to Mth first routing subdivisions are located on the same side of the second central axis, and the (M + 1) th to 2 Mth first routing subdivisions are located on the same side of the second central axis;

when i is less than or equal to M, the ith first routing subsection is electrically connected with the (2 j-1) th second routing subsection; wherein i and j are positive integers;

and when i is larger than M, the ith first routing subsection is electrically connected with the (2 j) th second routing subsection.

5. The display panel according to claim 4, wherein j = i when i ≦ M;

when i > M, j = i-M.

6. The display panel of claim 4, wherein j = i when i ≦ M;

j =2M-i +1 when i > M.

7. The display panel of claim 4, wherein j = M-i +1 when i ≦ M;

when i > M, j = i-M.

8. The display panel of claim 4, wherein j = M-i +1 when i ≦ M;

j =2M-i +1 when i > M.

9. The display panel of claim 4, wherein the second trace subsection is electrically connected to the first trace subsection through a first connection via and electrically connected to the data line through a second connection via;

and the distances between the first connecting through hole and the second connecting through hole corresponding to the two second routing subsections are the same.

10. The display panel according to claim 1, wherein the display region further comprises a plurality of scan lines;

the extending direction of the first routing subsection is the same as that of the data line, the extending length of the first routing subsection is L1, the extending length of the data line is L2, and L2-L1/L1 is less than or equal to 20%;

the extending direction of the second routing subsection is the same as that of the scanning line, the extending length of the second routing subsection is L3, the extending length of the scanning line is L4, and L4-L3/L3 is less than or equal to 20%.

11. The display panel of claim 1, wherein the display panel further comprises dummy connection traces;

at least one virtual connecting wire is arranged between the two second wire distribution parts, and the extending direction of the virtual connecting wire is the same as that of the second wire distribution parts.

12. The display panel according to claim 11, wherein the display region further comprises a plurality of scan lines;

the extending direction of the virtual connecting line is the same as that of the scanning line, the extending length of the virtual connecting line is L5, the extending length of the scanning line is L4, and L4-L5/L5 is less than or equal to 20%.

13. The display panel according to claim 11, wherein the dummy trace is electrically connected to the fixed-potential signal terminal.

14. The display panel of claim 11, wherein the dummy connection traces are disposed in the same layer as the second trace distribution.

15. The display panel of claim 1, wherein the data lines are disposed in the same layer as the first routing sections.

16. The display panel according to claim 1, further comprising a power supply signal line in the display region;

the first routing subsection and the power signal lines are at least partially overlapped along the thickness direction of the display panel.

17. A display device characterized by comprising the display panel according to any one of claims 1 to 16.

Images