CN114333577B - Flexible display panel and display device - Google Patents
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- CN114333577B CN114333577B CN202111552711.6A CN202111552711A CN114333577B CN 114333577 B CN114333577 B CN 114333577B CN 202111552711 A CN202111552711 A CN 202111552711A CN 114333577 B CN114333577 B CN 114333577B
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Abstract
The embodiment of the application provides a flexible display panel and display device, and flexible display panel includes display area and non-display area, and the non-display area sets up around the display area, is provided with in the non-display area: at least three insulating layers, wherein a metal layer is arranged between two adjacent insulating layers; at least one metal layer is provided with at least one through hole, and one insulating layer in the insulating layers on two sides of the metal layer provided with the through hole penetrates through the through hole to be connected with the other insulating layer. Through set up the through-hole and make the insulating layer of metal level both sides connect through the through-hole, can make the connection of metal level and insulating layer inseparabler, when flexible display panel buckles, can reduce the risk of peeling off between metal level and the adjacent insulating layer, and then strengthen the encapsulation effect in non-display area to promote user's use experience.
Description
Technical Field
The application belongs to the technical field of display devices, and particularly relates to a flexible display panel and a display device.
Background
Flexible displays are a research hotspot in recent years. The flexible display panel generally has a display area and a non-display area, the non-display area may further include an encapsulation area, a cathode overlap area, and a binding area, the encapsulation area may be disposed between the cathode overlap area and the binding area, the cathode overlap area is used for overlapping the cathode with the VSS signal line, and the binding area is used for binding all signal lines of the display area with the control chip or the integrated circuit.
The cathode overlap region and the bonding region may each include a multi-layered structure such as a metal layer for connecting signal lines and an insulating layer for isolating different metal layers. The encapsulation region may encapsulate the multi-layer structure. However, when the flexible display panel is bent, peeling is easily generated between different material layers of the non-display area, and the packaging effect of the non-display area is affected.
Disclosure of Invention
The embodiment of the application provides a flexible display panel and a display device to solve the problem that when the existing flexible display panel is bent, peeling is easy to occur between different material layers of a non-display area, and the packaging effect of the non-display area is affected.
In a first aspect, embodiments of the present application provide a flexible display panel, the flexible display panel including a display area and a non-display area, the non-display area being disposed around the display area, the non-display area being provided with:
at least three insulating layers, wherein a metal layer is arranged between two adjacent insulating layers;
at least one metal layer is provided with at least one through hole, and one insulating layer in the insulating layers on two sides of the metal layer provided with the through hole penetrates through the through hole to be connected with the other insulating layer.
Optionally, three insulating layers are disposed in the non-display area, and at least one first through hole is disposed near the first metal layer of the display surface of the flexible display panel.
Optionally, the second metal layer far away from the display surface of the flexible display panel is provided with at least one second through hole, and each second through hole and each first through hole are arranged in a dislocation manner.
Optionally, the three-layer insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, the second insulating layer is disposed between the first insulating layer and the third insulating layer, the second insulating layer is provided with at least one third through hole, the first insulating layer passes through the third through hole and is connected with the third insulating layer, and a preset distance is disposed between each third through hole and the first metal layer or each third through hole is adjacent to the first metal layer.
Optionally, the material of the first insulating layer, the material of the second insulating layer and the material of the third insulating layer are the same.
Optionally, the first metal layer and the second metal layer are electrically connected.
Optionally, the areas of the first metal layer and the second metal layer are equal and are correspondingly arranged.
In a second aspect, embodiments of the present application further provide a flexible display panel, where the flexible display panel includes a display area and a non-display area, the non-display area is disposed around the display area, and a non-display area is disposed therein:
at least three insulating layers, wherein a metal layer is arranged between two adjacent insulating layers;
at least one insulating layer is provided with at least one through hole, and one insulating layer in the insulating layers on two sides of the insulating layer provided with the through hole penetrates through the through hole to be connected with the other insulating layer.
Optionally, each of the vias is disposed adjacent to or contiguous with one of the metal layers.
In a third aspect, embodiments of the present application further provide a display device, including:
a flexible display panel according to any one of the preceding claims;
and the driving chip is electrically connected with the flexible display panel.
In the flexible display panel and the display device of the embodiment of the application, through setting up the through-hole at the metal level and making the insulating layer of metal level both sides connect through the through-hole, can make the connection of metal level and insulating layer inseparabler, when flexible display panel buckles, can reduce the risk of peeling off between metal level and the adjacent insulating layer, and then strengthen the encapsulation effect in non-display area to promote user's use experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort to a person skilled in the art.
For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.
Fig. 2 is a schematic structural view of a flexible display panel in the display device shown in fig. 1.
Fig. 3 is a first cross-sectional view schematically showing a portion of the structure in the non-display area of the flexible display panel shown in fig. 2.
Fig. 4 is a schematic view of a portion of the structure in the non-display area shown in fig. 3 at another angle.
Fig. 5 is a second cross-sectional view schematically showing a portion of the structure in the non-display area of the flexible display panel shown in fig. 2.
Fig. 6 is a third cross-sectional view schematically showing a portion of the structure in the non-display area of the flexible display panel shown in fig. 2.
Fig. 7 is a fourth cross-sectional view schematically showing a portion of the structure in the non-display area of the flexible display panel shown in fig. 2.
Fig. 8 is a fifth cross-sectional view schematically showing a portion of the structure in the non-display area of the flexible display panel shown in fig. 2.
Fig. 9 is a sixth cross-sectional view schematically showing a portion of the structure in the non-display area of the flexible display panel shown in fig. 2.
Fig. 10 is a seventh cross-sectional view schematically showing a portion of the structure in the non-display area of the flexible display panel shown in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In order to solve the problem that when an existing flexible display panel is bent, different material layers of a non-display area are easy to peel off and influence the packaging effect of the non-display area, the embodiment of the application provides a flexible display panel and a display device, and the flexible display panel and the display device are described below with reference to the accompanying drawings.
For example, referring to fig. 1, fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application. The embodiment of the application provides a display device 1, and the display device 1 may include a flexible display panel 10 and a driving chip 20, where the driving chip 20 is electrically connected to the flexible display panel 10. The driving chip 20 is used for driving the display or the curling action of the flexible display panel 10, and the driving chip can be understood as a control center of the display device 1. The display device 1 may be bent, folded or otherwise deformed to exhibit different display effects, thereby satisfying the viewing habits of different users on the display device 1. The display device 1 may be a mobile electronic device such as a mobile phone or a tablet, or the display device 1 may be a device having a display function such as a computer device, a television, or a car-mounted computer.
The display device 1 may include an OLED (Organic Light-Emitting Diode) device, or the Light-Emitting form of the components in the display device 1 is an OLED Light-Emitting form, where an OLED is a current-type Organic Light-Emitting device that emits Light by injection and recombination of carriers, and the Light-Emitting intensity is proportional to the injected current. Under the action of an electric field, holes generated by the anode and electrons generated by the cathode of the OLED move, are respectively injected into the hole transport layer and the electron transport layer, and migrate to the light emitting layer. When the two meet at the light emitting layer, an energy exciton is generated, thereby exciting the light emitting molecule to finally generate visible light. The organic plastic layer of an OLED is thinner, lighter, and more flexible than the crystalline layer of an LED (Light-Emitting Diode) or LCD (Liquid Crystal Display). In addition, the OLED can be produced on different flexible substrate materials such as plastics and resins, and an organic layer is evaporated or coated on a plastic substrate, so that a soft screen or a flexible screen can be realized. OLED has the advantages of self-luminescence, low driving voltage, high luminous efficiency, short response time, high definition and contrast, wide viewing angle, wide use temperature range and the like, and is considered to be the display with the most development potential.
Among them, the flexible display panel 10 is a main device in the display apparatus 1, and the bending or folding of the display apparatus 1 is generally performed in consideration of the bending or folding of the flexible display panel 10. In order to illustrate the flexible display panel 10 according to the embodiment of the present application, a problem that peeling is easily generated between different material layers when the flexible display panel 10 is bent will be described below as to the composition structure of the flexible display panel 10.
For example, please refer to fig. 1 in combination with fig. 2, fig. 2 is a schematic structural diagram of a flexible display panel in the display device shown in fig. 1. The present embodiments also provide a flexible display panel 10, and the flexible display panel 10 may also be referred to as a flexible screen. From the viewpoint of the constituent layer structure of the flexible display panel 10, the flexible display panel 10 may generally include a light emitting layer and a driving layer driving the light emitting layer to emit light. The flexible display panel 10 may include a display region 11 and a non-display region 12, the non-display region 12 being disposed around the display region 11, as viewed from a display surface facing the flexible display panel 10. The display area 11 is an area where the flexible display panel 10 displays a screen. The non-display region 12 may include an encapsulation region, a cathode overlap region, and a binding region, and the encapsulation region may be disposed between the cathode overlap region and the binding region. The cathode overlap region is arranged close to the display region 11, and is used for overlapping the cathode with the VSS signal line, and the binding region is used for binding all signal lines of the display region 11 with the control chip or the integrated circuit. The non-display area 12 may also be referred to as a trace area, and is a scanning line or a signal line outlet within the display area 11. The non-display area 12 is not normally displayed and thus this area may also be used to encapsulate the flexible display panel 10. It should be noted that, in preparing the flexible display panel 10, the preparation of the structure of the non-display area 12 is generally performed following the preparation of the structure of the display area 11. The display region 11 may be a laminated structure, and thus, the non-display region 12 may also be a laminated structure. However, when the flexible display panel 10 is bent, since the materials of the different layer structures are different, the adhesion between the different material layers is not strong, and the stress concentration is easily caused by the influence of the bending stress between the different material layers, so that the peeling easily occurs between the different material layers of the non-display area 12, and the encapsulation effect of the non-display area 12 is affected.
In order to solve the above-described problems, the embodiment of the present application improves the composition structure of the non-display area 12. For example, please refer to fig. 3 and fig. 4 in combination with fig. 1 and fig. 2, fig. 3 is a first cross-sectional view of a portion of the structure in the non-display area in the flexible display panel shown in fig. 2, and fig. 4 is another angular structural view of a portion of the structure in the non-display area shown in fig. 3. At least three insulating layers 120 may be disposed in the non-display region 12, and a metal layer 122 is disposed between two adjacent insulating layers 120. Wherein, at least one metal layer 122 is provided with at least one through hole 124, and one insulating layer 120 of the insulating layers 120 on both sides of the metal layer 122 provided with the through hole 124 passes through the through hole 124 to be connected with the other insulating layer 120. Through set up through-hole 124 and make the insulating layer 120 of metal layer 122 both sides connect through-hole 124 at metal layer 122, can make the connection of metal layer 122 and insulating layer 120 inseparabler, when flexible display panel 10 buckles, can reduce the risk of peeling off between metal layer 122 and the adjacent insulating layer 120, and then strengthen the encapsulation effect of non-display area 12 to promote user's use experience.
Among them, the non-display region 12 may be provided with three insulating layers 120, and the three insulating layers 120 may be a first insulating layer 120a, a second insulating layer 120b, and a third insulating layer 120c, and the second insulating layer 120b is disposed between the first insulating layer 120a and the third insulating layer 120 c. A first metal layer 122a may be disposed between the first insulating layer 120a and the second insulating layer 120b, and a second metal layer 122b may be disposed between the second insulating layer 120b and the third insulating layer 120 c. Wherein the first metal layer 122a is closer to the display surface of the flexible display panel 10 than the second metal layer 122b.
In the first case, as shown in fig. 1 to 4, at least one first through hole 124a is disposed near the first metal layer 122a on the display surface of the flexible display panel 10. Accordingly, the first insulating layer 120a and the second insulating layer 120b at both sides of the first metal layer 122a may be connected through the first via 124a. The connection between the first insulating layer 120a, the first metal layer 122a, and the second insulating layer 120b thus provided is tighter, thereby reducing the risk of peeling between the above three-layer structures when the flexible display panel 10 is bent.
Because the non-display area 12 is configured to accommodate the display area 11, the first metal layer 122a may have an irregular shape to match the space requirement of other components. In order to make the connection effect among the first metal layer 122a, the first insulating layer 120a and the second insulating layer 120b better, a plurality of first through holes 124a may be formed on the first metal layer 122 a. The plurality of first through holes 124a may be arranged regularly, and the number of first through holes 124a located at the middle position of the first metal layer 122a may be greater than the number of first through holes 124a located at the edge position of the first metal layer 122a, it is understood that the number is determined by the shape of the first metal layer 122a, for example, the first metal layer 122a may be shaped such that the middle portion gradually shrinks toward the edge.
The material of the first insulating layer 120a may be the same as that of the second insulating layer 120 b. It should be noted that, compared to the distance between the second insulating layer 120b and the display surface of the flexible display panel 10, the first insulating layer 120a is closer to the display surface of the flexible display panel 10, and the first metal layer 122a, the first insulating layer 120a, and the second insulating layer 120b may be a layer structure prepared following the preparation of the display region 11. For example, the first insulating layer 120a may be a passivation layer or a PVS layer. The first metal layer 122a may be a metal layer formed following the preparation of the source and drain metal layers of the display region 11. The first insulating layer 120a is used to cover the first metal layer 122a to prevent the first metal layer 122a from being exposed and oxidized. The second insulating layer 120b includes an interlayer dielectric layer and a buffer layer, and the first insulating layer 120a and the second insulating layer 120b may be located at both sides of the first metal layer 122 a. Illustratively, the material of both the first insulating layer 120a and the second insulating layer 120b may be SiO. Since the adhesion of the metal to SiO is small, the insulating layer and the metal layer are easily peeled off when the flexible display panel 10 is bent. In this embodiment, the plurality of through holes 124 may be disposed on the metal layer 122 to connect the insulating layers 120 on two sides of the metal layer 122, so as to improve adhesion between the metal layer 122 and the insulating layers 120 on two sides of the metal layer, and further improve the packaging effect of the non-display area 12.
In the second case, please refer to fig. 1-4 in combination with fig. 5, fig. 5 is a second schematic cross-sectional view of a portion of the structure in the non-display area of the flexible display panel shown in fig. 2. At least one first through hole 124a is disposed in the first metal layer 122a near the display surface of the flexible display panel 10, and at least one second through hole 124b is disposed in the second metal layer 122b far from the display surface of the flexible display panel 10. Each second through hole 124b is offset from each first through hole 124a. The second metal layer 122b is provided with at least one second through hole 124b, so that the second insulating layer 120b and the third insulating layer 120c on both sides of the second metal layer 122b can be connected through the second through hole 124b, and further, the connection among the second metal layer 122b, the second insulating layer 120b and the third insulating layer 120c can be tighter. Meanwhile, the first metal layer 122a is provided with at least one first via 124a to connect the first insulating layer 120a and the second insulating layer 120b, so that the connection between the first metal layer 122a, the first insulating layer 120a and the second insulating layer 120b may be tighter. In summary, the arrangement of at least one first through hole 124a in the first metal layer 122a and at least one second through hole 124b in the second metal layer 122b can make the connection among the first insulating layer 120a, the second insulating layer 120b, the third insulating layer 120c, the first metal layer 122a and the second metal layer 122b tighter, so that the peeling between different material layers of the non-display area 12 is not easy to occur, and the packaging effect of the non-display area 12 is improved.
It is understood that the second metal layer 122b may be disposed between the second insulating layer 120b and the third insulating layer 120 c. The third insulating layer 120c is disposed on a side remote from the display surface of the flexible display panel 10, compared to the first insulating layer 120 a. The third insulating layer 120c may also be referred to as a polyimide film layer (PI), which may be used as a base material layer. The third insulating layer 120c and the second metal layer 122b are also layer structures prepared following the preparation of the components in the display area 11. The material of the third insulating layer 120c may be the same as that of the first insulating layer 120a, for example, the material of the third insulating layer 120c is also SiO.
Note that the second metal layer 122b may also be referred to as a first metal layer or an LS layer, the second metal layer 122b may be a first metal layer disposed when the flexible display panel 10 is manufactured, and the second metal layer 122b may serve as a light shielding layer or a base layer of a metal trace to stabilize light emission of the flexible display panel 10, and the like. The second metal layer 122b may be electrically connected to the first metal layer 122a, for example, a through hole may be formed in the second insulating layer 120b, and a portion of the first metal layer 122a is disposed in the through hole and connected to the second metal layer 122b, so as to meet the wiring requirement of the flexible display panel 10. The areas of the second metal layer 122b and the first metal layer 122a may be equal and disposed correspondingly up and down, so that the connection between the second metal layer 122b and the first metal layer 122a is more convenient.
In a third case, please refer to fig. 6 in conjunction with fig. 1-5, fig. 6 is a third schematic cross-sectional view of a portion of the structure in the non-display area of the flexible display panel shown in fig. 2. On the basis of the second case, that is, at least one first through hole 124a is disposed on the first metal layer 122a, at least one second through hole 124b is disposed on the second metal layer 122b, and at least one third through hole 124c is disposed on the second insulating layer 120b, the first insulating layer 120a may be connected to the third insulating layer 120c through the third through hole 124c, so that the connection tightness between the three insulating layers 120 and the two metal layers 122 sandwiched between the three insulating layers 120 may be further increased, and thus the flexible display panel 10 is not easily peeled off between the different material layers during bending. The encapsulation effect of the non-display area 12 is improved.
In this example, each third via 124c may have a predetermined distance from the first metal layer 122a, for example, the predetermined distance may be 0.01 mm. Of course, each third via 124c may also be adjacent to the first metal layer 122a, so as to make the connection between the insulating layer 120 adjacent to the metal layer 122 tight, thereby helping to make the connection between the metal layer 122 and the insulating layer 120 tight.
In order to solve the problem of easy peeling between different material layers, the embodiments of the present application are not limited to the above solutions, that is, correspond to the above three cases. Other solutions will be described below.
For example, please continue to refer to fig. 2. The embodiment also provides a flexible display panel 10, the flexible display panel 10 may include a display region 11 and a non-display region 12, and the non-display region 12 may be disposed around the display region 11. The display area 11 may be described with reference to fig. 1 and 2 and the above description, and will not be repeated here. The non-display area 12 of the present embodiment may include at least three insulating layers 120, and a metal layer 122 is disposed between two adjacent insulating layers 120. At least one insulating layer is provided with at least one through hole 124, and one insulating layer 120 of the insulating layers 120 on two sides of the insulating layer 120 provided with the through hole 124 passes through the through hole 124 to be connected with the insulating layer 120 on the other side. Since the metal layer 122 is sandwiched between the insulating layers 120, if the middle insulating layer 120 of the at least three insulating layers 120 is provided with the through holes 124 to connect the insulating layers 120 on both sides, the connection between the three insulating layers 120 and the metal layer 122 sandwiched between the insulating layers 120 is tighter, so that the risk of peeling between different material layers when the flexible display panel 10 is bent is reduced.
In the fourth case, please refer to fig. 7 and 8 in combination with fig. 1 to 6, fig. 7 is a fourth schematic cross-sectional view of a portion of the structure in the non-display area of the flexible display panel shown in fig. 2, and fig. 8 is a fifth schematic cross-sectional view of a portion of the structure in the non-display area of the flexible display panel shown in fig. 2. The at least three insulating layers 120 may include a first insulating layer 120a, a second insulating layer 120b, and a third insulating layer 120c, with the second insulating layer 120b interposed between the first insulating layer 120a and the third insulating layer 120 c. Accordingly, a first metal layer 122a may be disposed between the first insulating layer 120a and the second insulating layer 120b, and a second metal layer 122b may be disposed between the second insulating layer 120b and the third insulating layer 120 c. The material composition and the layer structure of the first insulating layer 120a, the second insulating layer 120b, the third insulating layer 120c, and the first metal layer 122a and the second metal layer 122b may be described with reference to fig. 1 to 7 and the above description, and will not be repeated here. Wherein the second insulating layer 120b may be provided with at least one third via 124c. The first insulating layer 120a may be connected to the third insulating layer 120c through the third via 124c, thereby making the connection between the three insulating layers 120 and the two metal layers 122 tighter.
The materials of the first insulating layer 120a, the second insulating layer 120b, and the third insulating layer 120c may be the same, for example, the materials of the three insulating layers 120 are all SiO.
Wherein each via 124 is disposed adjacent to one of the metal layers 122 or adjacent to one of the metal layers 122. The proximity may be understood as a predetermined distance between the via 124 and the metal layer 122, for example, the predetermined distance may be 0.01 mm. Illustratively, the third via 124c may be disposed proximate to the first metal layer 122a such that a tight connection between the insulating layers 120 may aid in the tightness of the connection with the metal layer 122.
In a fifth case, please refer to fig. 1-8 in combination with fig. 9, fig. 9 is a sixth cross-sectional view of a portion of the structure in the non-display area of the flexible display panel shown in fig. 2. On the basis of the fourth situation, that is, in the case that the second insulating layer 120b is provided with at least one third through hole 124c, at least one second through hole 124b may be provided in the second metal layer 122b at the same time, so that the connection effect between the different material layers is better, and the risk of peeling between the different material layers when the flexible display panel 10 is bent is smaller.
In the sixth case, please refer to fig. 10 in combination with fig. 1 to 9, fig. 10 is a seventh schematic cross-sectional view of a portion of the structure in the non-display area of the flexible display panel shown in fig. 2. At least one second via 124b may also be formed in the second metal layer 122b alone. The second through hole 124b may be formed and the corresponding effects may be referred to the above description, and will not be repeated here.
In the flexible display panel 10 and the display device 1 of the embodiment of the application, through setting up the through hole 124 at the metal layer 122 and connecting the insulating layer 120 on two sides of the metal layer 122 through the through hole 124, the connection between the metal layer 122 and the insulating layer 120 can be made tighter, when the flexible display panel 10 is bent, the risk of stripping between the metal layer 122 and the adjacent insulating layer 120 can be reduced, and then the packaging effect of the non-display area 12 is enhanced, so that the use experience of a user is improved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.
The flexible display panel and the display device provided by the embodiments of the present application are described in detail, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the description of the above embodiments is only used to help understand the method and core idea of the present application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.
Claims (10)
1. A flexible display panel, characterized in that the flexible display panel comprises a display area and a non-display area, the non-display area is arranged around the display area, and the non-display area is internally provided with:
at least three insulating layers, wherein a metal layer is arranged between two adjacent insulating layers;
at least one metal layer is provided with at least one through hole, and one insulating layer of insulating layers on two sides of the metal layer provided with the through hole penetrates through the through hole to be connected with the other insulating layer, so that different layers are tightly connected;
the area of any insulating layer is larger than that of the metal layer; the insulating layers in the middle of the at least three insulating layers are provided with at least one through hole, and one insulating layer of the insulating layers on two sides of the insulating layer provided with the through hole penetrates through the through hole to be connected with the other insulating layer; each of the vias is disposed adjacent to or contiguous with one of the metal layers.
2. The flexible display panel of claim 1, wherein three insulating layers are disposed in the non-display area, and at least one first via is disposed adjacent to the first metal layer of the display surface of the flexible display panel.
3. The flexible display panel according to claim 2, wherein the second metal layer remote from the display surface of the flexible display panel is provided with at least one second through hole, and each second through hole is offset from each first through hole.
4. A flexible display panel according to claim 2 or 3, wherein the three insulating layers comprise a first insulating layer, a second insulating layer and a third insulating layer, the second insulating layer being arranged between the first insulating layer and the third insulating layer, the second insulating layer being provided with at least one third via, the first insulating layer being connected to the third insulating layer through the third via, a predetermined distance being arranged between each of the third vias and the first metal layer or each of the third vias being adjacent to the first metal layer.
5. The flexible display panel according to claim 4, wherein a material of the first insulating layer, a material of the second insulating layer, and a material of the third insulating layer are the same.
6. A flexible display panel according to claim 3, wherein the first metal layer and the second metal layer are electrically connected.
7. A flexible display panel according to claim 3, wherein the first metal layer and the second metal layer are equal in area and are disposed correspondingly.
8. A flexible display panel, characterized in that the flexible display panel comprises a display area and a non-display area, the non-display area is arranged around the display area, and the non-display area is internally provided with:
at least three insulating layers, wherein a metal layer is arranged between two adjacent insulating layers;
at least one insulating layer is provided with at least one through hole, and one insulating layer of the insulating layers on two sides of the insulating layer provided with the through hole penetrates through the through hole to be connected with the other insulating layer;
any one of the insulating layers has an area larger than that of the metal layer, at least one metal layer is provided with at least one through hole, and one insulating layer of the insulating layers on two sides of the metal layer provided with the through hole penetrates through the through hole to be connected with the other insulating layer, so that the different layers are tightly connected.
9. A flexible display panel according to claim 8, wherein each of the through holes is disposed adjacent to or contiguous with one of the metal layers.
10. A display device, comprising:
a flexible display panel according to any one of claims 1-9;
and the driving chip is electrically connected with the flexible display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111552711.6A CN114333577B (en) | 2021-12-17 | 2021-12-17 | Flexible display panel and display device |
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