Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate and a power supply structure located on one side of the substrate, and the power supply structure is located in the non-display area and located on one side of the display area in the first direction; the power supply structure comprises a first branch part, a second branch part, a wire inlet end part and a connecting part. The first branch part, the connecting part, the second branch part and the wire inlet end part are sequentially arranged away from the display area in the first direction; the connecting part extends along a first direction, the first branch part and the second branch part extend along a second direction, the second direction is crossed with the first direction, the connecting part is connected with the first branch part and the second branch part, and the wire inlet end part is connected with the second branch part; the substrate is provided with a bending area; in the first direction, the bending area is located between the first branch part and the second branch part, and at least part of the connecting part is located in the bending area. The problem that the side, close to the power source structure, of the display area is locally shiny can be solved, and display uniformity is improved.

Description

Technical Field

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

[0002] With the development of display technology, display devices designed specifically for automobiles have become an important category of display products. The display area of ​​current in-vehicle display products is relatively large. In order to improve the visual effect, the border of the display product also needs to be compressed. However, under the design requirements of narrow borders, there is a problem of bright display at the power input port, resulting in uneven display. Summary of the invention

[0003] Embodiments of the present invention provide a display panel and a display device to solve the technical problem of improving display uniformity.

[0004] In a first aspect, an embodiment of the present invention provides a display panel, comprising a display area and a non-display area; the display panel comprises a substrate and a power supply structure located on one side of the substrate, the power supply structure is located in the non-display area and on one side of the display area in a first direction; wherein,

[0005] The power supply structure includes a first sub-section, a second sub-section, an inlet end and a connecting section; the first sub-section, the connecting section, the second sub-section and the inlet end are arranged in sequence away from the display area along a first direction;

[0006] The connecting portion extends along a first direction, the first sub-portion and the second sub-portion extend along a second direction, the second direction intersects the first direction, the connecting portion connects the first sub-portion and the second sub-portion, and the inlet end is connected to the second sub-portion;

[0007] The substrate has a bending region; along the first direction, the bending region is located between the first sub-portion and the second sub-portion, and at least part of the connecting portion is located in the bending region.

[0008] In a second aspect, based on the same inventive concept, an embodiment of the present invention further provides a display device, comprising a display panel provided by any embodiment of the present invention.

[0009] The display panel and display device provided by the embodiment of the present invention have the following beneficial effects: the embodiment of the present invention sets the first division in the power structure located in the non-display area close to the display area, the incoming line end is far away from the display area, the connecting part is connected between the first division and the second division, and the incoming line end is used to introduce the power signal into the second division. The connecting part is set in the bending area, and when the bending area is in a bending state, the second division and the incoming line end can be placed on the back of the display panel, thereby realizing a narrow frame of the display panel. Moreover, since the second division is finally placed on the back of the display panel, the width of the second division in the first direction is not limited, thereby increasing the distance from the source of the power signal to the display area, so that the power signal is first evenly transmitted in the second division, and the voltage drop difference of the power signal in the second direction can be balanced. Then the power signal is introduced into the first division by using the connecting part, and then the power signal is introduced into the display area through the first division, thereby improving the problem of local brightness of the display area close to the power structure and improving the display uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0011] Figure 1 A schematic diagram of a display panel in the related art;

[0012] Figure 2 A schematic diagram of a display panel provided by an embodiment of the present invention;

[0013] Figure 3 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0014] Figure 4 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0015] Figure 5 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0016] Figure 6 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0017] Figure 7 A schematic diagram of another display panel provided by an embodiment of the present invention;

[0018] Figure 8 A partial schematic diagram of another display panel provided by an embodiment of the present invention;

[0019] Fig. 9 for Figure 2 A schematic diagram of a cross section at the mid-tangent line A-A';

[0020] Fig.10 A schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0023] It should be understood that although the terms first and second may be used to describe XX in the embodiments of the present invention, these XX should not be limited to these terms. These terms are only used to distinguish XX from each other. For example, without departing from the scope of the embodiments of the present invention, the first XX may also be referred to as the second XX, and similarly, the second XX may also be referred to as the first XX.

[0024] Figure 1 A schematic diagram of a display panel in related technology is shown in FIG. Figure 1 The figure shows a medium-sized product currently used in vehicles, with a display screen size of about 12-30 inches. Figure 1 As shown, due to the large size of the display panel, a multi-COF (ChipOnFlex) method is adopted for driving. Figure 1 The binding regions corresponding to the four COFs are Q1, Q2, Q3 and Q4 respectively. Figure 1 The figure also shows the wiring of the positive power supply structure 01 and the negative power supply structure 02 required for driving the display panel in the non-display area. Figure 1 There is a problem of brightness in the area (the area circled with a dotted line in the figure), and the local position of the display area AA near the positive power supply structure 01 is bright, resulting in uneven brightness of the entire display panel.

[0025] The inventors consider that due to the large display area of ​​the medium-sized product, the overall current on the positive power structure 01 is large, and the current path of the positive power signal in the display area AA is long, resulting in a large voltage drop of the overall positive power signal, which easily causes uneven brightness. In addition, in order to achieve the effect of a narrow frame, the lower frame is compressed, resulting in the line port being closer to the display area AA, which results in a higher brightness in the display area corresponding to the line port.

[0026] In order to solve the problems existing in the related technology, an embodiment of the present invention provides a display panel, which improves the incoming line layout of the power structure in the non-display area to improve the current uniformity of the incoming line area of ​​the power structure, optimizes the problem of lighting up the display area corresponding to the incoming line port caused by the power signal voltage drop, and improves the display uniformity.

[0027] Figure 2 A schematic diagram of a display panel provided by an embodiment of the present invention, such as Figure 2 As shown, the display panel includes a display area AA and a non-display area NA; the display panel includes a substrate ( Figure 2 The display panel further includes a power supply structure 10 located on one side of the substrate, the power supply structure 10 is located in the non-display area NA and on one side of the display area AA in the first direction y. The display area AA includes a light-emitting device, which may be an organic light-emitting device or an inorganic light-emitting device. The display panel further includes a pixel circuit, the cathode of the light-emitting device receives a negative power supply signal, the anode is connected to the pixel circuit, and a port of the pixel circuit receives a positive power supply signal. Optionally, the power supply structure 10 is a positive power supply structure, which is used to provide a positive power supply signal.

[0028] like Figure 2 As shown, the power supply structure 10 includes a first subsection 11, a second subsection 12, an inlet end 13 and a connecting portion 14; along the first direction y away from the display area AA, the first subsection 11, the connecting portion 14, the second subsection 12, and the inlet end 13 are arranged in sequence. The connecting portion 14 extends along the first direction y, the first subsection 11 and the second subsection 12 extend along the second direction x, the second direction x intersects the first direction y, the connecting portion 14 connects the first subsection 11 and the second subsection 12, and the inlet end 13 is connected to the second subsection 12. The substrate in the display panel has a bending zone Z; along the first direction y, the bending zone Z is located between the first subsection 11 and the second subsection 12, and at least part of the connecting portion 14 is located in the bending zone Z. .

[0029] In the power structure 10 located in the non-display area NA in the embodiment of the present invention, the first division 11 is close to the display area AA, the incoming line end 13 is far away from the display area AA, the connecting portion 14 is connected between the first division 11 and the second division 12, and the incoming line end 13 is used to introduce the power signal into the second division 12. The connecting portion 14 is set in the bending area Z, and when the bending area Z is in a bent state, the second division 12 and the incoming line end 13 can be placed on the back of the display panel, thereby realizing a narrow frame of the display panel. Moreover, since the second division 12 is finally placed on the back of the display panel, the width of the second division 12 in the first direction y is not limited, thereby increasing the distance from the source of the power signal to the display area AA, so that the power signal is first evenly transmitted in the second division 12, and the voltage drop difference of the power signal in the second direction x can be balanced. Then the power signal is introduced into the first division 11 by using the connecting portion 14, and then the power signal is introduced into the display area AA through the first division 11, thereby improving the problem of local brightness of the display area AA close to the power structure 10, and improving the display uniformity.

[0030] In some embodiments, Figure 2 As shown, along the first direction y, the width of the first section 11 is d1, and the width of the second section 12 is d2; the width d2 of the second section 12 is greater than the width d1 of the first section 11. In the embodiment of the present invention, a bending zone Z is provided between the first section 11 and the second section 12. When the bending zone Z is in a bent state, the second section 12 and the inlet end 13 can be placed on the back of the display panel. Then, the width d1 of the first section 11 affects the size of the display panel frame, and the width of the second section 12 in the first direction y is not limited. Setting d2 to be greater than d1, on the one hand, the width d2 of the second section 12 can be set to be large enough to increase the distance from the source of the power signal to the display area AA, so that the power signal is first evenly transmitted in the second section 12; on the other hand, setting the width d1 of the first section 11 to be smaller can be conducive to achieving a narrow frame of the display panel.

[0031] In some embodiments, along the first direction y, the width of the first subdivision 11 is d1, and the width of the second subdivision 12 is d2; wherein 0.25≤d1:d2≤0.5. This embodiment sets a certain ratio range between d1 and d2, which can avoid the width d2 of the second subdivision 12 being too large to affect power consumption, and can avoid the width d1 of the first subdivision 11 being too small to affect the effect of balancing the voltage drop difference of the power supply signal.

[0032] In some embodiments, along the first direction y, the width of the second division 12 is d2, and d2 ≥ 500 μm. When the bending zone Z is in a bent state, the second division 12 and the incoming line end 13 can be placed on the back of the display panel, and the width of the second division 12 in the first direction y is not limited. In the embodiment of the present invention, d2 is set to meet a certain range so that the width d2 of the second division 12 is larger, so that the distance from the source of the power signal to the display area AA can be increased, so that the power signal is first evenly transmitted in the second division 12, and the voltage drop difference of the power signal in the second direction x can be balanced, thereby improving the problem of local brightness on the side of the display area AA close to the power structure 10, and improving the display uniformity.

[0033] like Figure 2 As shown, along the first direction y, the distance between the first subdivision 11 and the display area AA is D, 100μm≤D≤500μm. The display area AA is the light-emitting area on the panel, and the boundary between the display area AA and the non-display area NA is defined by the edge of the pixel circuit in the display area AA. In the embodiment of the present invention, the range of D is limited. On the one hand, the value of D will not be too small, which can ensure that the structures made of the same layer of material in the display area AA of the first subdivision 11 can be insulated from each other and avoid short circuits; on the other hand, the value of D will not be too large, which can ensure that the display panel has a smaller bottom frame.

[0034] In some embodiments, the width of the connection portion 14 in the second direction x is not less than 300 μm. This configuration reduces the resistance of the connection portion 14 and reduces the voltage drop of the power signal transmitted on the connection portion 14 .

[0035] In some embodiments, Figure 2 As shown, along the first direction y, the connection portion 14 and the inlet end 13 at least partially do not overlap. In other words, the connection portion 14 and the inlet end 13 are not located on the same straight line extending in the first direction y. Such a setting can avoid excessive concentration of current when it is transmitted to the display area AA along the first direction y, which is beneficial to improving the current uniformity of the inlet area of ​​the power structure 10 and optimizing the problem of the display area corresponding to the inlet port lighting up due to the voltage drop of the power signal.

[0036] In some embodiments, Figure 2 As shown, the display panel includes n pad groups 20, where n is an integer, n≥2; Figure 2 Take n=4 as an example. Figure 2The location of the pad group 20 is marked, but the multiple pads included in the pad group 20 are not illustrated. It can be understood that multiple pads are arranged along the second direction x in the pad group 20. In the first direction y, the pad group 20 is located on the side of the incoming line end 13 away from the second division 12; one pad group 20 corresponds to connecting at least one incoming line end 13. The pad group 20 is used to bind the chip-on-chip film. When assembled into a display device, the main board transmits a control signal to the display panel through the chip-on-chip film. In the embodiment of the present invention, the incoming line end 13 is used to connect the pads in the pad group 20, and the pad position is the source of the power signal, thereby realizing the provision of the power signal to the power structure 10. Figure 2 In the figure, a pad group 20 is used to connect two incoming line ends 13. Such a setting is conducive to the symmetrical design of the incoming line end 13 and the uniform voltage drop difference of the power supply signal on the power supply structure 10, and can also avoid the excessive number of pads connected to the incoming line end 13 to affect the transmission of other functional signals.

[0037] In some embodiments, n≤10. It can be understood that the number of n is related to the number of bound flip chips, which need to be connected to the mainboard through interfaces. The larger the number of n, the more bound flip chips, and thus the more connection interfaces. The embodiment of the present invention sets 2≤n≤10, and can drive the display panel by setting multiple groups of flip chips, which meets the driving capacity requirements and can also avoid the difficulty of assembly due to too many interfaces.

[0038] In some embodiments, the display panel includes n-1 first virtual lines X1, the first virtual lines X1 extend along the first direction y, and two adjacent pad groups 20 in the second direction x are symmetrical about the first virtual line X1; the n-1 first virtual lines X1 divide the bending area Z into n sub-areas, one sub-area corresponds to one pad group 20, and m connecting portions 14 are arranged in one sub-area, where m is an integer, and m≥3.

[0039] Figure 3 A schematic diagram of another display panel provided by an embodiment of the present invention, Figure 3 Take n=4,m=5 as an example. Figure 3As shown, the display panel includes three first virtual lines X1, and two pad groups 20 adjacent in the second direction x are symmetrical about the first virtual lines X1. The three first virtual lines X1 divide the bending area Z into four sub-areas Z1, one sub-area Z1 corresponds to one pad group 20, and five connecting portions 14 are arranged in each sub-area Z1. In the embodiment of the present invention, one sub-area Z1 basically corresponds to the current flow area of ​​the incoming line end 13 connected to one pad group 20 for transmitting the power signal, and a plurality of connecting portions 14 are arranged in each sub-area Z1, so that the voltage drop when the power signal is transmitted from the second sub-section 12 to the first sub-section 11 can also be relatively uniform, avoiding current concentration, which is conducive to uniformizing the voltage drop of the first sub-section 11 in the second direction x, thereby improving the problem of local brightness on the side of the display area AA close to the power structure 10, and improving display uniformity.

[0040] In some embodiments, Figure 3 As shown, the display panel includes a second virtual line X2, and the second virtual line X2 extends along the first direction y; one pad group 20 corresponds to two inlet ends 13, and the two inlet ends 13 corresponding to one pad group 20 are symmetrical about the second virtual line X2; wherein, m( Figure 3 In this embodiment, a pad group 20 is provided corresponding to two inlet ends 13, and the two inlet ends 13 are symmetrical about the second virtual line X2, and the multiple connections 14 in the sub-area Z1 are also symmetrical about the second virtual line X2. With such a configuration, the inlet positions of the power signal to the second sub-section 12 and the inlet positions of the power signal to the first sub-section 11 can be dispersed and relatively uniform in the second direction x, which can even out the voltage drop of the power signal, thereby improving the problem of local brightness on one side of the display area AA close to the power structure 10 and improving display uniformity.

[0041] In another embodiment, Figure 4 A schematic diagram of another display panel provided by an embodiment of the present invention, Figure 4 Take n=4, m=4 as an example. Figure 4 As shown, one pad group 20 corresponds to two incoming line ends 13, and the two incoming line ends 13 corresponding to one pad group 20 are symmetrical about the second virtual line X2; one sub-area Z1 has four connecting portions 14, and the four connecting portions 14 are symmetrical about the second virtual line X2. In the embodiment of the present invention, one sub-area Z1 includes m connecting portions 14, and m can be an odd number or an even number.

[0042] In some embodiments, a sub-region Z1 includes m connecting portions 14, where m is an odd number, and the (m+1) / 2th connecting portion 14 among the m connecting portions 14 in the sub-region overlaps with the second virtual symmetry line. Figure 3For example, a sub-area Z1 includes 5 connecting portions 14, wherein the third connecting portion 14 arranged in the second direction x overlaps the second virtual symmetry line X2. In this way, the power signal can be distributed and relatively evenly introduced into the first sub-area 11 in the second direction x, and the voltage drop of the power signal can be evened, thereby improving the problem of partial brightness of the display area AA near the power structure 10 and improving display uniformity.

[0043] In some embodiments, the display panel includes a second virtual line X2, which extends along the first direction y, and the two incoming line ends 13 corresponding to a pad group 20 are symmetrical about the second virtual line X2; the m connection parts 14 in the sub-area Z1 include a first connection part and a second connection part; along the second direction x, the distance between the first connection part and the second virtual line X2 is smaller than the distance between the second connection part and the second virtual line X2; along the second direction x, the width of the first connection part is greater than the width of the second connection part.

[0044] Take n=3, m=7 as an example. Figure 5 Schematic diagram of another display panel provided by an embodiment of the present invention. Figure 5 As shown, the display panel includes a first virtual line X1 and a second virtual line X2. Two adjacent pad groups 20 in the second direction x are symmetrical about the first virtual line X1, and the first virtual line X1 divides the bending zone Z into a plurality of sub-zones Z1. The two incoming line ends 13 corresponding to a pad group 20 are symmetrical about the second virtual line X2. The seven connection parts 14 in the sub-zone Z1 include a first connection part 141 and a second connection part 142; along the second direction x, the distance between the first connection part 141 and the second virtual line X2 is smaller than the distance between the second connection part 142 and the second virtual line X2; along the second direction x, the width of the first connection part 141 is d3, and the width of the second connection part 142 is d4; the width d3 of the first connection part 141 is larger than the width d4 of the second connection part 142. By Figure 5 It can be seen that in the second direction x, the distance between the first connection portion 141 and the incoming line end 13 is smaller than the distance between the second connection portion 142 and the incoming line end 13. The width of the first connection portion 141 is relatively large, and the width of the second connection portion 142 is relatively small, so that the voltage drop difference at the positions of the two connection portions relative to the position of the incoming line end 13 can be relatively small, and the uniformity of the voltage drop at each position of the first subdivision 11 in the second direction x can be improved, thereby improving the problem of local brightness on the side of the display area AA close to the power supply structure 10, and improving display uniformity.

[0045] In some embodiments, along the second direction x, the width of the first connecting portion 141 is d3, and the width of the second connecting portion 142 is d4; wherein, 1 < d3:d4 ≤ 4. Optionally, the widths of both the first connecting portion 141 and the second connecting portion 142 are not less than 300 μm. In the embodiments of the present invention, setting the ratio between d3 and d4 to satisfy a certain range can make the voltage drop differences at the positions of the two connecting portions relative to the position of the incoming line end 13 smaller, and can improve the voltage drop uniformity at each position of the first sub-region 11 in the second direction x.

[0046] In some embodiments, as Figure 5 shown, along the second direction x, the widths of the m connecting portions 14 in the sub-region Z1 first increase and then decrease. By regularly designing the widths of the connecting portions 14 according to the distance differences of the connecting portions 14 from the second virtual line X2 in the second direction x, the voltage drop differences of the power supply signals at the positions of the connecting portions 14 can be made smaller, thereby improving the voltage drop uniformity at each position of the first sub-region 11 in the second direction x, improving the problem of local brightening on the side of the display area AA close to the power supply structure 10, and improving the display uniformity.

[0047] In some embodiments, as Figure 3 shown, the display panel includes a third virtual line X3 extending along the first direction y, and the incoming line end 13 is symmetric about the third virtual line X3; wherein, the m connecting portions 14 in the sub-region include adjacent third connecting portions 143 and fourth connecting portions 144, the third virtual line X3 is located between the third connecting portion 143 and the fourth connecting portion 144, and the third connecting portion 143 and the fourth connecting portion 144 are symmetric about the third virtual line X3. Such a setting makes the voltage drop differences of the power supply signals transmitted at the positions of the third connecting portion 143 and the fourth connecting portion 144 small, which is beneficial to improving the problem of local brightening on the side of the display area AA close to the power supply structure 10 and improving the display uniformity.

[0048] In some embodiments, Figure 6 Another schematic diagram of the display panel provided by the embodiments of the present invention is shown in Figure 6 as shown. The display panel further includes a chip-on-film 30, and one pad group 20 is correspondingly bonded to one chip-on-film 30. When assembled into a display device, the main board transmits control signals to the display panel through the chip-on-film 30. In the embodiments of the present invention, at least two pad groups 20 are provided, so there are at least two chip-on-films 30, which can meet the driving requirements of medium-sized display panels in applications.

[0049] As Figure 6As shown, the display panel includes a second virtual line X2, the second virtual line X2 extends along the first direction y, and the two inlet ends 13 corresponding to a pad group 20 are symmetrical about the second virtual line X2; wherein, the flip chip film 30 is symmetrical about the second virtual line X2. The two inlet ends 13 are set symmetrically about the second virtual line X2, so that the power signal inlet position to the second branch 12 is dispersed and relatively uniform in the second direction x, which can even out the voltage drop of the power signal. Further setting the flip chip film 30 symmetrical about the second virtual line X2 can reasonably utilize the space in the area where the multiple pad groups 20 are located, and ensure the corresponding binding yield of the flip chip film 30 and the pad group 20.

[0050] In some embodiments, Figure 7 A schematic diagram of another display panel provided by an embodiment of the present invention, such as Figure 7 As shown, the display area AA has a first symmetry axis X4 extending along the first direction y; the power supply structure 10 includes N incoming line ends 13 arranged in the second direction x, N is an integer; wherein the N incoming line ends 13 are symmetric about the first symmetry axis X4. N can be an odd number or an even number. When p incoming line ends 13 are provided corresponding to one pad group 20, N=n*p, n is the number of pad groups 20 in the display panel, and p is a positive integer. In the embodiment of the present invention, N incoming line ends 13 are provided symmetrically about the first symmetry axis X4 of the display area AA, so that when the line is introduced into the second subdivision 12, the voltage drop difference of the incoming line ends 13 on the left and right sides of the first symmetry axis X4 is small, and the uniformity of the voltage drop at each position on the second subdivision 12 can be improved, which is conducive to improving the problem of local brightness on the side of the display area AA close to the power supply structure 10, and improving the display uniformity.

[0051] In some embodiments, Figure 8 A partial schematic diagram of another display panel provided by an embodiment of the present invention, Figure 8 The local position near the bending zone Z is shown. Figure 8 As shown, the connection portion 14 is connected between the first sub-portion 11 and the second sub-portion 12. The connection portion 14 includes a plurality of connection lines 145, and the connection lines 145 extend along the first direction y. The plurality of connection lines 145 in one connection portion 14 are arranged at equal intervals in the second direction x. In this embodiment, a connection portion 14 is provided to include a plurality of connection lines 145, and a plurality of signal output paths can be formed at the position of the connection portion 14. The plurality of connection lines 145 are arranged at intervals to avoid defects caused by large pieces of metal at local positions, and can release bending stress when the bending zone Z is bent, thereby avoiding disconnection of the connection portion 14, thereby improving the performance reliability of the display panel.

[0052] In addition, if Figure 8 As shown, the connecting line 145 includes a plurality of hollow portions K. The design of the hollow portions K further releases the stress caused by bending to avoid line breakage. Figure 8The schematic diagram of the connecting line 145 is a diamond-shaped twisted line. The connecting line 145 provided in the embodiment of the present invention can also be a curve, a serpentine line, a single-hole line, a double-hole staggered line, etc.

[0053] In some embodiments, Fig. 9 for Figure 2 A schematic diagram of a cross section at the midline A-A', such as Fig. 9 As shown, the display panel includes a first metal layer M1 and a second metal layer M2 located on one side of the substrate 00, and the first division 11 includes a first sub-division 111 located on the first metal layer M1 and a second sub-division 112 located on the second metal layer M2, and the first sub-division 111 and the second sub-division 112 are connected by a via penetrating the insulating layer. The second division 12 includes a third sub-division 121 located on the first metal layer M1 and a fourth sub-division 122 located on the second metal layer M2, and the third sub-division 121 and the fourth sub-division 122 are connected by a via penetrating the insulating layer. The line inlet end 13 includes a fifth sub-division 131 located on the first metal layer M1 and a sixth sub-division 132 located on the second metal layer M2; the fifth sub-division 131 and the sixth sub-division 132 are connected by a via penetrating the insulating layer. The connecting portion 14 is located in one of the first metal layer M1 and the second metal layer M2, Fig. 9 The connection part 14 is located in the first metal layer M1 for illustration. In this embodiment, the first sub-part 11, the second sub-part 12, and the inlet end 13 all include two sub-parts located in two metal layers. Such a configuration can reduce the resistance of the first sub-part 11, the second sub-part 12, and the inlet end 13, thereby facilitating the reduction of the voltage drop of the power signal transmitted by the power structure 10. The connection part 14 is made in one metal layer, which can improve the bending resistance of the connection part 14 and reduce the risk of disconnection of the connection part 14 when the bending zone Z is bent.

[0054] Optionally, the first metal layer M1 and the second metal layer M2 include the same material, such as metal titanium and / or metal aluminum.

[0055] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.10 A schematic diagram of a display device provided by an embodiment of the present invention is shown in FIG. Fig.10 As shown, the display device includes a display panel 100 provided by any embodiment of the present invention. The structure of the display panel 100 has been described in the above embodiment and will not be repeated here. The display device provided by the embodiment of the present invention can be, for example, a vehicle-mounted display device, or an electronic device such as a television or a computer.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display panel, characterized in that: The display panel comprises a display area and a non-display area; the display panel comprises a substrate and a power supply structure located on one side of the substrate, the power supply structure is located in the non-display area and on one side of the display area in a first direction; wherein, The power supply structure comprises a first sub-section, a second sub-section, an inlet end and a connecting portion; away from the display area along the first direction, the first sub-section, the connecting portion, the second sub-section and the inlet end are arranged in sequence; The connecting portion extends along the first direction, the first sub-portion and the second sub-portion extend along the second direction, the second direction intersects the first direction, the connecting portion connects the first sub-portion and the second sub-portion, and the inlet end is connected to the second sub-portion; The substrate has a bending region; along the first direction, the bending region is located between the first sub-portion and the second sub-portion, and at least a portion of the connecting portion is located in the bending region.

2. The display panel according to claim 1, characterized in that: Along the first direction, the width of the second section is greater than the width of the first section.

3. The display panel according to claim 2, characterized in that: Along the first direction, the width of the first section is d1, and the width of the second section is d2; Among them, 0.25≤d1:d2≤0.

5.

4. The display panel according to claim 1, characterized in that: Along the first direction, the width of the second portion is d2, and d2≥500 μm.

5. The display panel according to claim 1, characterized in that: Along the first direction, the distance between the first section and the display area is D, and 100 μm≤D≤500 μm.

6. The display panel according to claim 1, characterized in that: Along the first direction, the connecting portion and the incoming line end portion at least partially do not overlap.

7. The display panel according to claim 1, characterized in that: The display panel includes n pad groups, where n is an integer and n≥2; The pad group includes a plurality of pads arranged along the second direction; in the first direction, the pad group is located on a side of the incoming line end away from the second subsection; one pad group is correspondingly connected to at least one incoming line end.

8. The display panel according to claim 7, characterized in that: The display panel comprises n-1 first virtual lines, the first virtual lines extend along the first direction, and two adjacent pad groups in the second direction are symmetrical about the first virtual lines; The n-1 first virtual lines divide the bending area into n sub-areas, one sub-area corresponds to one pad group, and m connecting parts are arranged in one sub-area, where m is an integer and m≥3.

9. The display panel according to claim 8, characterized in that: The display panel includes a second virtual line extending along the first direction; One pad group corresponds to two incoming line ends, and the two incoming line ends corresponding to one pad group are symmetrical about the second virtual line; The m connecting parts in the sub-area are symmetrical about the second virtual line.

10. The display panel according to claim 8, characterized in that: The display panel comprises a second virtual line, the second virtual line extends along the first direction, and the two inlet line ends corresponding to one pad group are symmetrical about the second virtual line; m is an odd number, and the (m+1) / 2th connecting portion among the m connecting portions in the sub-area overlaps with the second virtual symmetry line.

11. The display panel according to claim 8, characterized in that: The display panel comprises a second virtual line, the second virtual line extends along the first direction, and the two inlet line ends corresponding to one pad group are symmetrical about the second virtual line; The m connecting portions in the sub-area include a first connecting portion and a second connecting portion; along the second direction, a distance between the first connecting portion and the second virtual line is smaller than a distance between the second connecting portion and the second virtual line; Along the second direction, the width of the first connection portion is greater than the width of the second connection portion.

12. The display panel according to claim 11, characterized in that: Along the second direction, the width of the first connecting portion is d3, and the width of the second connecting portion is d4; wherein, <d3:d4≤4。 13. The display panel according to claim 8, characterized in that: Along the second direction, the widths of the m connecting portions in the sub-region in the second direction first increase and then decrease.

14. The display panel according to claim 8, characterized in that: The display panel includes a third virtual line extending along the first direction, and the end of the incoming line is symmetrical about the third virtual line; The m connection parts in the sub-area include an adjacent third connection part and a fourth connection part, the third virtual line is located between the third connection part and the fourth connection part, and the third connection part and the fourth connection part are symmetrical about the third virtual line.

15. The display panel according to claim 7, characterized in that: The display panel further includes a chip-on-chip film, and one of the pad groups is bound to one of the chip-on-chip films.

16. The display panel according to claim 15, characterized in that: The display panel comprises a second virtual line, the second virtual line extends along the first direction, and the two inlet line ends corresponding to one pad group are symmetrical about the second virtual line; Wherein, the flip chip film is symmetrical about the second virtual line.

17. The display panel according to claim 1, characterized in that: The display area has a first symmetry axis extending along the first direction; The power supply structure includes N incoming line ends arranged in the second direction, where N is an integer; The N incoming line ends are symmetrical about the first symmetry axis.

18. The display panel according to claim 1, characterized in that: The connecting portion includes a plurality of connecting lines extending along the first direction, and the plurality of connecting lines in one connecting portion are arranged at equal intervals in the second direction.

19. The display panel according to claim 1, characterized in that: The display panel includes a first metal layer and a second metal layer located at one side of the substrate, the first subsection includes a first subsection located at the first metal layer and a second subsection located at the second metal layer, the second subsection includes a third subsection located at the first metal layer and a fourth subsection located at the second metal layer, and the inlet end includes a fifth subsection located at the first metal layer and a sixth subsection located at the second metal layer; The connection portion is located in one of the first metal layer and the second metal layer.

20. A display device, characterized in that: A display panel comprising any one of claims 1 to 19.

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