Display panel and display device

Abstract

The application provides a display panel and a display device. A data transfer line electrically connected with a first type of multiplexer passes through a display area and is electrically connected with a data pin located at a chip binding area. Therefore, the area of the data transfer line occupying the frame area is reduced. Not only can the wiring space of the frame area be effectively released, but also the width of the frame area can be reduced, so that the development trend of a narrower frame of the display device is realized.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0002] With the development of display technology, users have increasingly higher requirements for the screen-to-body ratio of display devices, and narrow bezel design has become a major development trend. Display devices have display areas and non-display areas. In most existing display devices, the display area includes a curved edge on the side of the driver chip, and multiple multiplexers for selecting data signal transmission are arranged along the curved edge of the display area. A large number of traces between the multiplexers and the driver chip are located in the non-display area, resulting in a relatively large bezel width and making it difficult to achieve the trend of narrower bezels in display devices. Summary of the Invention

[0003] In view of this, the present invention provides a display panel and display device that effectively solves the problems existing in the prior art, reduces the area occupied by the lines set in the bezel area, not only frees up the wiring space in the bezel area, but also reduces the width of the bezel area, realizing the development trend of narrower bezels in display devices.

[0004] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0005] A display panel includes: a display area and a bezel area; in a first direction, the bezel area includes a chip bonding area located on a first side of the display area, the chip bonding area including a plurality of data pins; in a second direction, and on the first side of the display area, at least one edge of the display area includes an arc-shaped edge, the first direction and the second direction intersect.

[0006] Multiple multiplexers, including multiple first-type multiplexers, which are arranged along the arc-shaped edge of the display area;

[0007] Multiple data adapter cables are provided, one end of which is electrically connected to the first type of multiplexer, the data adapter cables pass through the display area, and the other end of which is electrically connected to the data pin.

[0008] Based on the same inventive concept, the present invention also provides a display device, which includes the display panel described above.

[0009] Compared with the prior art, the technical solution provided by the present invention has at least the following advantages:

[0010] This invention provides a display panel and a display device, comprising: a display area and a bezel area; in a first direction, the bezel area includes a chip bonding area located on a first side of the display area, the chip bonding area including a plurality of data pins; in a second direction, and on the first side of the display area, at least one edge of the display area includes an arc-shaped edge, the first direction and the second direction intersecting; a plurality of multiplexers, the plurality of multiplexers including a plurality of first-type multiplexers, the first-type multiplexers being disposed along the arc-shaped edge of the display area; and a plurality of data adapter cables, one end of each data adapter cable being electrically connected to a first-type multiplexer, the data adapter cable passing through the display area, and the other end of each data adapter cable being electrically connected to the data pins.

[0011] As can be seen from the above, the technical solution provided by the present invention passes the data transfer cable electrically connected to the first type of multiplexer through the display area and is electrically connected to the data pin located in the chip bonding area. Therefore, the area occupied by the data transfer cable in the bezel area is reduced. This not only effectively releases the wiring space in the bezel area, but also reduces the width of the bezel area, realizing the development trend of narrower bezels in display devices. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0017] Figure 5 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0018] Figure 6 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0019] Figure 7 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0021] Figure 9 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0022] Figure 10 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0023] Figure 11 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0024] Figure 12 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0025] Figure 13 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0026] Figure 14 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0027] Figure 15 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0028] Figure 16 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0029] Figure 17 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0030] Figure 18 This is a schematic diagram of the structure of another display panel provided in an embodiment of the present invention;

[0031] Figure 19 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0034] As described in the background section, display devices have a display area and a non-display area. In most existing display devices, the display area includes an arc-shaped edge at the side edge of the driver chip, and multiple multiplexers for selecting data signal transmission are arranged along the arc-shaped edge of the display area. A large number of traces are arranged between the multiplexers and the driver chip in the non-display area, resulting in a large bezel width of the display device, making it difficult to achieve the development trend of narrower bezels in display devices.

[0035] Based on this, the present invention provides a display panel and display device that effectively solves the problems existing in the prior art, reduces the area occupied by the lines set in the bezel area, not only frees up the wiring space in the bezel area, but also reduces the width of the bezel area, realizing the development trend of narrower bezels in display devices.

[0036] To achieve the above objectives, the technical solutions provided by the embodiments of the present invention are as follows, in detail... Figures 1 to 19 The technical solutions provided in the embodiments of the present invention will be described in detail.

[0037] refer to Figure 1 The diagram shown is a schematic diagram of a display panel provided in an embodiment of the present invention. The display panel provided in this embodiment includes a display area AA and a border area SA. In the first direction Y, the border area SA includes a chip bonding area SA1 located on a first side of the display area AA, and the chip bonding area SA1 includes a plurality of data pins 300. In the second direction X, and on the first side of the display area AA, at least one edge of the display area AA includes an arc-shaped edge AA1. The first direction Y and the second direction X intersect.

[0038] Multiple multiplexers 100 are provided, which may be located between the display area AA and the chip bonding area SA1. The multiple multiplexers 100 include multiple first-type multiplexers 110, which are disposed along the arcuate edge AA1 of the display area AA.

[0039] Multiple data adapter cables 200 are provided, one end of which is electrically connected to the first type of multiplexer 110, the data adapter cables 200 pass through the display area AA, and the other end of which is electrically connected to the data pin 300.

[0040] The input terminal of the multiplexer provided in this embodiment of the invention is electrically connected to a data transmission line, and the multiple output terminals of the multiplexer are respectively electrically connected to their respective corresponding data lines. The data transmission line receives data signals output from data pins and then transmits them to the multiplexer. The multiplexer selects the output terminal according to control to output the data signal to the corresponding data line, and finally transmits the data signal to the pixel through the data line. For example, the input terminal of the first type of multiplexer is electrically connected to a data transfer line, and the multiple output terminals of the first type of multiplexer are respectively connected to their respective corresponding data lines. The multiplexer may include multiple switching transistors, the first end of each switching transistor is electrically connected to a data pin, the second end of each switching transistor is connected to its respective corresponding data line, and the control terminals of the switching transistors are electrically connected to a control terminal. The switching transistors receive data signals output from the data pins, and then the control terminal selects the corresponding switching transistor and controls its conduction to transmit the data signal to the connected data line, and then the data line transmits the data signal to the corresponding pixel circuit. In this embodiment of the invention, the conduction type of all the switching transistors K can be the same or at least different from the others. Specifically, they can be N-type switching transistors or P-type switching transistors. This invention does not impose any specific restrictions on this.

[0041] It is understood that the technical solution provided by the embodiments of the present invention passes the data transfer cable electrically connected to the first type of multiplexer through the display area and is electrically connected to the data pin located in the chip bonding area. Therefore, the area occupied by the data transfer cable in the bezel area is reduced. This not only effectively releases the wiring space in the bezel area, but also reduces the width of the bezel area, realizing the development trend of narrower bezels in display devices.

[0042] like Figure 1 As shown, the first type of multiplexer 110 provided in this embodiment of the invention is continuously arranged along the arc edge AA1 of the display area AA, thereby avoiding the setting of other multiplexers 100 between adjacent first type multiplexers 110. Therefore, there is no need to set other data related signal lines at the arc edge AA1 of the display area AA corresponding to the bezel area SA, effectively freeing up the wiring space at the arc edge AA1 of the bezel area SA, thereby reducing the width of the bezel area SA and realizing the narrow bezel design of the display device.

[0043] In one embodiment of the present invention, the display area provided by the present invention can be a regular or irregular shape display area including rounded corners. For example, the entire display area can be a rectangular area, and all four corners of the rectangular area can be rounded corners. The rounded corner of the rectangular display area on the chip bonding area side is the arc-shaped edge of the display area. Continuing as... Figure 1 As shown, in the second direction X, and on the first side of the display area AA, at least one edge of the display area AA includes a radius angle AAR, which is the arc-shaped edge AA1 of the display area AA. Optionally, at the radius angle AAR, starting from the first multiplexer 101 at the end of the plurality of multiplexers 100, at least a portion of the multiplexers 100 corresponding to the radius angle AAR are the first type of multiplexer 110.

[0044] Alternatively, the display area provided in this embodiment of the invention can also be a region with a regular or irregular shape including arcs, wherein the arc is the curved edge of the display area. (See reference) Figure 2 The diagram shows a structural schematic of another display panel provided in an embodiment of the present invention. In the second direction X, and on the first side of the display area AA, at least one edge of the display area AA is an arc AAY, which is the arc-shaped edge AA1 of the display area AA. Optionally, at the arc AAY, starting from the first multiplexer 101 at the end of the plurality of multiplexers 100, at least a portion of the multiplexers 100 corresponding to the arc are the first type of multiplexer 110.

[0045] Optional, see reference Figure 3 The diagram illustrates another display panel structure provided by an embodiment of the present invention. In the second direction X, and on the first side of the display area AA, both sides of the display area AA are arcs, defined as a first arc AAY1 and a second arc AAY2, respectively. The opposite endpoints of the first arc AAY1 and the second arc AAY2 are the same endpoint, i.e., the endpoint of the first arc AAY1 on the first side of the display area AA and the endpoint of the second arc AAY2 on the first side of the display area AA are connected. Optionally, at any arc of the first arc AAY1 and the second arc AAY2, starting from the first multiplexer 101 at the end of the plurality of multiplexers 100, at most half of the multiplexers 100 corresponding to the arc are the first type of multiplexers 110. Optionally, the display area AA provided by this embodiment of the present invention is a circular display area; this embodiment of the present invention does not impose specific limitations on this.

[0046] As can be understood, the first and second arcs provided in this embodiment of the invention are directly connected to form a semicircle; therefore, all multiplexers are arranged along the arcs. By limiting the number of first-type multiplexers corresponding to the first and second arcs, the effect of freeing up wiring space at the corresponding arc edges of the bezel area is optimized, achieving a narrow bezel design for the display device.

[0047] In one embodiment of the present invention, the data adapter cable provided in this embodiment is electrically connected to a first type of multiplexer in the bezel area, extends through the display area, and finally electrically connects to the data pins in the bezel area. The portion of the data adapter cable located in the display area can be entirely located on the same conductive layer; or the portion of the data adapter cable located in the display area can be divided into multiple segments, each located on a different conductive layer, and connected segments are electrically connected via vias. Furthermore, the segments of the data adapter cable in the bezel area and the segments in the display area provided in this embodiment can be arranged on the same or different layers, depending on the specific application. (Reference) Figure 4 The diagram shown is a structural schematic of another display panel provided in an embodiment of the present invention. The display panel provided in this embodiment includes: a substrate 10; a gate metal layer 20 located on one side of the substrate 10; a first insulating layer 31 located on the side of the gate metal layer 20 away from the substrate 10; a source / drain metal layer 40 located on the side of the first insulating layer 31 away from the substrate 10; a second insulating layer 32 located on the side of the source / drain metal layer 40 away from the substrate 10; and a transition metal layer 50 located on the side of the second insulating layer 32 away from the substrate 10; wherein at least a portion of the data transfer line 200 is located on the gate metal layer 20, the source / drain metal layer 40, or the transition metal layer 50.

[0048] Continue as Figure 4 As shown, the transistors in the circuit structure of the display panel provided in this embodiment of the invention can be top-gate transistors. A semiconductor layer 60 is located between the substrate 10 and the gate metal layer 20, and a gate insulating layer 33 is disposed between the semiconductor layer 60 and the gate metal layer 20. The gate metal layer 20 includes a gate, the semiconductor layer 60 includes an active layer, and the source / drain metal layer 40 includes an active electrode and a drain electrode. The source and drain electrodes are in contact with the active layer through vias. Thus, the gate, the active layer, the source electrode, and the drain electrode constitute the top-gate transistor TFT1 in the circuit structure of the display panel.

[0049] Or refer to Figure 5The diagram shows a schematic representation of another display panel provided in an embodiment of the present invention. The transistors in the circuit structure of the display panel provided in this embodiment can be bottom-gate transistors. A semiconductor layer 60 is located between the gate metal layer 20 and the first insulating layer 31, and a gate insulating layer 33 is disposed between the semiconductor layer 60 and the gate metal layer 20. The gate metal layer 20 includes a gate, the semiconductor layer 60 includes an active layer, and the source / drain metal layer 40 includes an active electrode and a drain electrode. The source and drain electrodes are in contact with the active layer through vias. Thus, the gate, the active layer, the source electrode, and the drain electrode constitute the bottom-gate transistor TFT2 in the circuit structure of the display panel.

[0050] To facilitate data transfer cable routing and free up routing space in other metal layers, the display panel provided in this embodiment of the invention can also incorporate more metal layers for signal line layout. (See reference) Figure 6 The diagram shown illustrates the structure of another display panel according to an embodiment of the present invention. The display panel further includes an auxiliary insulating layer 34 located on the side of the transition metal layer 50 facing away from the substrate 10, and an auxiliary metal layer 70 located on the side of the auxiliary insulating layer 34 facing away from the substrate 10. At least a portion of the data transfer line 200 is located on the gate metal layer 20, the source / drain metal layer 40, the transition metal layer 50, or the auxiliary metal layer 70.

[0051] Alternatively, the auxiliary metal layer provided in this embodiment of the invention may also be located between the gate metal layer and the substrate. (See reference) Figure 7 The diagram shows a schematic representation of another display panel provided in an embodiment of the present invention. The display panel further includes an auxiliary insulating layer 34 located between the gate metal layer 20 and the substrate 10, and an auxiliary metal layer 70 located between the auxiliary insulating layer 34 and the substrate 10. At least a portion of the data transfer line 200 is located on the gate metal layer 20, the source / drain metal layer 40, the transfer metal layer 50, or the auxiliary metal layer 70. To improve crosstalk between lines, the auxiliary insulating layer 34 provided in this embodiment has a dielectric constant less than 3 and a thickness greater than 1 micrometer, thereby improving the insulation effect of the auxiliary insulating layer 34 and reducing line coupling between the auxiliary metal layer 70 and other metal layers.

[0052] It is understood that the data transfer cable provided in the embodiments of the present invention can be entirely located in the same conductive layer, or the data transfer cable can be divided into multiple segments located in different conductive layers. This requires specific design based on factors such as the shape of the data transfer cable and the circuit layout in the conductive layers. Combined with... Figure 8The diagram shows a schematic of another display panel provided by an embodiment of the present invention. In this embodiment, the portion of the data adapter line 200 in the display area AA can extend linearly in the direction from the first type of multiplexer 110 to the data pin 300. The display panel provided by this embodiment includes a gate line Gi arranged along a first direction Y and extending along a second direction X, the gate line Gi being located in a gate metal layer; and a data line Di extending along the first direction Y and arranged along the second direction Y, the data line Di being located in a source / drain metal layer. The first direction Y and the second direction X can intersect perpendicularly. To avoid the linearly extending data adapter line 200 crossing the gate line Gi and the data line Di on the same layer, the data adapter line 200 can be integrally disposed in a transition metal layer or an auxiliary metal layer; furthermore, to avoid the problem of crossover between different data adapter lines 200 on the same layer, data adapter lines 200 that cross over in the design can be located in different metal layers; or, the data adapter line 200 can be segmented, with part located in the transition metal layer and another part located in the auxiliary metal layer.

[0053] Or refer to Figure 9 The diagram shows a schematic representation of another display panel provided in an embodiment of the present invention. The data transfer line 200 provided in this embodiment can be zigzag-shaped in the display area AA, including a first zigzag line 210 extending along the first direction Y and a second zigzag line 220 extending along the second direction X. Similarly, the display panel provided in this embodiment includes gate lines Gi arranged along the first direction Y and extending along the second direction X, with the gate lines Gi located in the gate metal layer; and data lines Di extending along the first direction Y and arranged along the second direction Y, with the data lines Di located in the source / drain metal layer. The first direction Y and the second direction X can be perpendicular. To avoid the linearly extending data transfer line 200 intersecting with the gate lines Gi and data lines Di on the same layer, the first zigzag line 210 can be located in the source / drain metal layer, the transition metal layer, or the auxiliary metal layer, while the second zigzag line 220 can be located in the gate metal layer, the transition metal layer, or the auxiliary metal layer. Furthermore, to avoid crossover issues between different data transfer lines 200 on the same layer, data transfer lines 200 that cross over in the design can be located in different metal layers.

[0054] The data transfer cable provided in this embodiment of the invention needs to pass through the display area, which contains numerous lines. To mitigate the impact of these lines on the data transfer cable, this embodiment of the invention can optimize the wiring. (See reference) Figure 10The diagram shows a schematic representation of another display panel provided in an embodiment of the present invention. The display panel includes a shielded signal line 400 disposed on a different layer from the data adapter cable 200. At least a portion of the data adapter cable 200 is insulated from and overlaps with the shielded signal line 400 in a direction perpendicular to the surface of the display panel. Optionally, when a portion of the data adapter cable 200 is located on the adapter metal layer 50, and the auxiliary metal layer 70 is located on the side of the adapter metal layer 50 away from the substrate 10, the shielded signal line 400 may include a portion located on the auxiliary metal layer 70 and / or a portion located on the source / drain metal layer 40. The shielded signal line 400 shields the data adapter cable 200 from coupling caused by a portion of the lines, thereby improving the signal transmission efficiency of the data adapter cable 200.

[0055] It should be noted that the above embodiments of the present invention are only described using the case where the data adapter cable is located in the adapter metal layer as an example. When the data adapter cable is located in other metal layers, shielded signal lines can be provided in the metal layers above and / or below the data adapter cable in the direction perpendicular to the surface of the display panel. Regardless of whether the portion of the data adapter cable in the display area extends in a straight line or a zigzag shape, shielded signal lines can be provided to improve the coupling problem between the data adapter cable and other lines. Figure 11 The diagram shown is a structural schematic of another display panel provided in an embodiment of the present invention. Figure 12 The following description uses only one transfer signal line 200 as an example. In the display area AA, the data transfer line 200 includes a broken line segment, comprising a first broken line 210 extending along the first direction Y and a second broken line 220 extending along the second direction X; the shielding signal line 400 includes a first sub-shielded signal line 410 extending along the first direction Y and a second sub-shielded signal line 420 extending along the second direction X; in a direction perpendicular to the surface of the display panel, at least a portion of the first broken line 210 is insulated from and overlaps with the first sub-shielded signal line 410; and / or, at least a portion of the second broken line 220 is insulated from and overlaps with the second sub-shielded signal line 420.

[0056] In one embodiment of the present invention, the shielded signal line provided in this embodiment can be designed separately on the display panel; alternatively, it is preferable to reuse the original circuitry in the display panel to make full use of the existing structure and avoid designing more circuitry, which would increase design difficulty and manufacturing costs. The shielded signal line provided in this embodiment is a constant voltage signal line. Optionally, the shielded signal line provided in this embodiment can be a power supply voltage line, a reference voltage line, a level line, or a ground line; this embodiment does not impose specific limitations on this.

[0057] refer to Figure 12The diagram shown is a structural schematic of another display panel provided in an embodiment of the present invention, wherein... Figure 13 This is a partial circuit diagram at the arc-shaped edge AA1. The display area provided in this embodiment of the invention includes multiple pixel circuits 500. In the display area AA, the data adapter cable 200 is located in the gap between adjacent pixel circuits 500. When a line in a pixel circuit 500 is on the same layer as the data adapter cable 200, placing the data adapter cable 200 in the gap between the pixel circuits 500 can prevent the data adapter cable 200 from affecting the circuit layout of the pixel circuit 500. Conversely, when the entire circuit of the pixel circuit 500 is on a different layer from the data adapter cable 200, placing the data adapter cable 200 in the gap between the pixel circuits 500 can improve coupling problems caused by line overlap and enhance the signal transmission effect of the data adapter cable 200.

[0058] In one embodiment of the present invention, the multiplexer provided in this embodiment may include other types of multiplexers in addition to the first type. To ensure high consistency of the signals received by all multiplexers, the data transfer cable and other data transmission lines for transmitting data signals can be optimized. (See reference...) Figure 13 The diagram shown is a structural schematic of another display panel provided in an embodiment of the present invention. The plurality of multiplexers 100 provided in this embodiment of the present invention include a plurality of second type multiplexers 120. The frame area SA includes a plurality of data transmission lines 600. One end of the data transmission line 600 is electrically connected to the second type multiplexer 120, and the other end of the data transmission line 600 is electrically connected to the data pin 300.

[0059] Understandably, both the first type and the second type of multiplexer provided in this embodiment of the invention are used to select data lines to transmit data signals to the corresponding pixels. The first type of multiplexer connects the data signal output from the data pin through a data adapter cable, while the second type of multiplexer connects the data signal output from the data pin through a data transmission line. Of all the multiplexers, the first type is located at the arc-shaped edge of the display area corresponding to the bezel region, while the remaining portion consists mostly of second type multiplexers located in the area between the chip bonding area and the display area. Therefore, the design where the data adapter cable passes through the display area and extends to the bezel region to electrically connect with the data pin generally results in a longer data adapter cable than the design where the data transmission line is directly connected to the data pin in the bezel region.

[0060] To improve the consistency of transmitted signals in data adapter cables and data transmission lines, the impedance difference between any two of the data adapter cables and data transmission lines provided in this embodiment of the invention can be set to less than 0.1 ohms. This results in smaller impedance differences between different data adapter cables, different data transmission lines, and between data adapter cables and data transmission lines, ensuring high signal consistency in the first and second type multiplexers, thereby improving the display effect of the display panel.

[0061] Furthermore, the data adapter cable provided in this embodiment of the invention needs to pass through the display area and connect to the data pins in the bezel area, while the data transmission line is directly located in the bezel area and connected to the data pins. Therefore, the length of the data adapter cable is generally greater than the length of the data input line. This embodiment of the invention can design the line width of at least a portion of the data adapter cable to be greater than the line width of the data transmission line, matching the impedance of the data adapter cable with the impedance of the data transmission line. This results in higher consistency of the transmitted signals between the data adapter cable and the data transmission line, improving the display effect of the display panel.

[0062] This invention also allows for impedance consistency matching between different signal lines by adjusting the linewidth at different segments of the signal line itself. Specifically, the linewidth of at least a portion of the data adapter cable located in the bezel area is greater than the linewidth of at least a portion of the data adapter cable located in the display area. This reduces the impedance of the data adapter cable and matches it with the impedance of the data transmission line, resulting in higher consistency of the transmitted signals between the data adapter cable and the data transmission line, thus improving the display effect of the display panel. Furthermore, increasing the linewidth of the data adapter cable segments located in the bezel area avoids the problem of affecting the wiring in the display area when adjusting the linewidth of the data adapter cable located in the display area.

[0063] In this embodiment of the invention, the impedance consistency of different signal lines can also be matched by adjusting the thickness of the signal lines. That is, in the direction perpendicular to the surface of the display panel, the thickness of at least a portion of the data adapter cable is greater than the thickness of the data transmission line. This reduces the impedance of the data adapter cable and matches the impedance of the data transmission line, resulting in higher consistency of the transmitted signals between the data adapter cable and the data transmission line, thereby improving the display effect of the display panel.

[0064] Furthermore, embodiments of the present invention can also match the impedance consistency of different signal lines by adjusting the material of the signal lines. That is, at least a portion of the material of the data adapter cable provided in the embodiments of the present invention has a lower impedance than the material of the data transmission line. This adjusts the impedance of the data adapter cable to reduce its impedance and match the impedance of the data transmission line, resulting in higher consistency of the transmitted signals between the data adapter cable and the data transmission line, thereby improving the display effect of the display panel.

[0065] It should be noted that the adjustments to parameters such as the width, thickness, and material of the data adapter cable described above in the embodiments of the present invention need to be designed based on the specific numerical range and / or specific type of the parameters according to the actual application. The present invention does not impose specific limitations.

[0066] refer to Figure 14 The diagram shows a structural schematic of another display panel provided by an embodiment of the present invention. The bezel area SA provided by this embodiment includes multiple bezel signal lines CK extending along the edge of the display area AA, and the bezel signal lines CK extend through the area between the multiplexer 100 and the data pin 300. Specifically, at the arc-shaped edge AA1, and in the direction perpendicular to the surface of the display panel, the data adapter line 200 does not overlap with the bezel signal lines CK; and / or, in the area between the multiplexer 100 and the data pin 300, and in the direction perpendicular to the surface of the display panel, both the data transmission line 600 and the data adapter line 200 are insulated from and overlap with the bezel signal lines CK, and the bezel signal lines CK that are insulated from and overlap with the data transmission line 600 and the bezel signal lines CK that are insulated from and overlap with the data adapter line 200 are the same bezel signal lines CK; that is, the data transmission line 600 and the data adapter line 200 are insulated from and overlap with one or more of the same bezel signal lines CK.

[0067] It is understood that the frame signal lines provided in this embodiment of the invention are clock signal lines or control signal lines, etc. Setting the data adapter line to not overlap with the frame signal lines at the curved edge avoids coupling effects from the frame signal lines on the data adapter line. Furthermore, in the area between the multiplexer and the data pins, the frame signal lines that overlap with the data transmission lines are designed to be insulated in the same way as the frame signal lines that overlap with the data adapter lines. This ensures that the data transmission lines and data adapter lines are subjected to the same coupling effects from the frame signal lines, guaranteeing high consistency of the transmitted signals between the data adapter lines and the data transmission lines, and improving the display effect of the display panel.

[0068] refer to Figure 15 The diagram shows a structural schematic of another display panel provided in an embodiment of the present invention. In this embodiment, at least a portion of the data adapter cable 200 includes a winding adapter cable 230 extending to the side of the data pin 300 away from the display area AA. The winding adapter cable 230 is electrically connected to the data pin 300 on the side away from the display area AA. Preferably, the path of the data adapter cable 200 extending to the side away from the display area AA provided in this embodiment can pass through the gap area between adjacent data pins 300.

[0069] Continue as Figure 15 As shown, the arrangement order of the data pins 300 provided in this embodiment of the invention is consistent with the arrangement order of the multiplexers 100. As shown in the line of sight, the first type of multiplexers, from left to right, are the first first type of multiplexer 111 to the Nth first type of multiplexer 11n, where N is an integer greater than 1. Similarly, the data pins 300, from left to right, include the first data pin 301 to the Nth data pin 30n corresponding to the first type of multiplexer. To facilitate the sequential connection of the first type of multiplexers and the data pins, the data adapter cable 200 corresponding to at least one first type of multiplexer provided in this embodiment of the invention may include a wire-wound adapter cable 230 extending to the side of the data pins 300 away from the display area AA, so as to realize the electrical connection between the first type of multiplexer and the corresponding data pins in areas with fewer lines.

[0070] The data adapter cable 200 provided in this embodiment of the invention electrically connects to the data pins 300 via a wire-wound adapter cable 230. Compared to connecting the data pins 300, which have a large number of lines, to the multiplexer 100, this avoids the wiring problem in the area between the data pins 300 and the multiplexer 100 caused by the connection of the data adapter cable 200 and the data pins 300. Furthermore, combined with... Figure 1 and Figure 15 As shown in the comparison, by electrically connecting the wire-wound adapter cable 230 to the data pin 300, the distribution of different data adapter cables 200 in the display area AA can be optimized, so that there is no more line crossing between different data adapter cables 200, avoiding the problems of coupling and / or increased wiring difficulty caused by the crossing between different data adapter cables 200.

[0071] In one embodiment of the present invention, when the data adapter cable provided in this embodiment extends through the display area to the chip bonding area and is electrically connected to the data pin, the data adapter cable can extend through the gap area between adjacent second-type multiplexers to the chip bonding area. (See reference) Figure 16 The diagram shows a schematic representation of another display panel according to an embodiment of the present invention. In this embodiment, the plurality of multiplexers 100 are arranged sequentially along the edge of the display area AA towards the chip bonding area SA. A line gap exists between any two adjacent second-type multiplexers 120. At least one data adapter cable 200 passes through the line gap and is electrically connected to the data pin 300. Furthermore, when the data adapter cable 200 includes a wire-wound adapter cable 230, the extension path of the data adapter cable 200 can pass through the gap area between adjacent data pins 300.

[0072] Alternatively, in the second multiplexer arrangement provided in this embodiment of the invention, a separate line opening can be provided, through which at least part of the data transfer cable passes and is electrically connected to the data pin. (See reference) Figure 17 As shown, the plurality of multiplexers 100 provided in this embodiment of the invention are arranged sequentially along the edge of the display area AA towards the chip bonding area SA. A line opening 121 is included at the arrangement position of the second type of multiplexer 120, wherein three or more (including all) data adapter cables 200 pass through the line opening 121 and are electrically connected to the data pins 300. Similarly, when the data adapter cable 200 provided in this embodiment of the invention includes a wire-wound adapter cable 230, a data opening 310 can be provided at the arrangement position of the data pins 300, and at least a portion of the extension path of the data adapter cable 200 can extend through the data opening 310 to the side of the data pins 300 away from the display area AA.

[0073] In one embodiment of the present invention, the portion of the multiplexer near the first type of multiplexer provided in this embodiment can be designed to pass through the display area in the same way as the data input line of the data pin, so that the data adapter line, data transmission line, and data input line all extend vertically along the first direction and connect to the data pin in the area between the data pin and the multiplexer. See details. Figure 18 The diagram shows a schematic representation of another display panel according to an embodiment of the present invention. In this embodiment, the plurality of multiplexers 100 are arranged sequentially along the edge of the display area AA towards the chip bonding area SA. Each multiplexer 100 further includes at least one third-type multiplexer 130, located between the plurality of first-type multiplexers 110 and the plurality of second-type multiplexers 120. The display panel also includes at least one data input line 700, one end of which is electrically connected to the third-type multiplexer 130. The data input line 700 passes through the display area AA, and the other end is electrically connected to the data pin 300.

[0074] Between the multiplexer 100 and the data pin 300, the segments of the data adapter cable 200, the data input line 700, and the data transmission line 600 are all vertically arranged extending along the first direction Y, changing the connection method of connecting to the data pin through fan-out routing, making the circuit easier to manufacture.

[0075] Understandably, the first type of multiplexer provided in this embodiment of the invention requires its electrical data transfer cable to pass through the display area and extend to the bezel area to connect with the data pins. Therefore, the design of the data transfer cable is relatively flexible, and the line segment extending to the bezel area can be extended along the first direction to form a vertical line segment and connect with the data pins. The second type of multiplexer is located between the data pins and the display area. When designing the second type of multiplexer, it can be positioned opposite the data pins. When connecting the data pins to the second type of multiplexer via a data transmission line, the data transmission line can also be designed as a vertical line segment extending along the first direction.

[0076] Furthermore, the third type of multiplexer, which is located between the first and second types of multiplexers, does not correspond to the curved edge or the end of the curved edge and therefore cannot be classified as a first type of multiplexer. Also, based on the shape of the connection between the multiplexer and the data pin, the connection between the third type of multiplexer and the corresponding data pin intersects the second direction to form a diagonal line and is therefore not classified as a second type of multiplexer. To address this, the data input line connected to the third type of multiplexer can be designed to pass through the display area and then extend to the bezel area to electrically connect with the data pin. This improves the design flexibility of the data input line, allowing the segment extending to the bezel area to form a vertical segment along the first direction and electrically connect with the data pin. Ultimately, the data adapter cable, data input line, and data transmission line in the area between the multiplexer and the data pin are all vertical segments extending along the first direction, facilitating circuit fabrication and avoiding problems such as easy breakage associated with diagonal lines.

[0077] Accordingly, embodiments of the present invention also provide a display device, the display device including the display panel provided in any of the above embodiments.

[0078] refer to Figure 19 The diagram shown is a structural schematic of a display device provided in an embodiment of the present invention, wherein the display device 1000 provided in this embodiment of the present invention can be a mobile terminal.

[0079] It should be noted that the display device provided in the embodiments of the present invention can also be a laptop, tablet computer, computer, wearable device, etc., and the present invention does not impose specific limitations on it.

[0080] This invention provides a display panel and display device, comprising: a display area and a bezel area; in a first direction, the bezel area includes a chip bonding area located on a first side of the display area, the chip bonding area including a plurality of data pins; in a second direction, and on the first side of the display area, at least one edge of the display area includes an arc-shaped edge, the first direction and the second direction intersecting; a plurality of multiplexers located between the display area and the chip bonding area, the plurality of multiplexers including a plurality of first-type multiplexers, the first-type multiplexers being disposed along the arc-shaped edge of the display area; and a plurality of data adapter cables, one end of each data adapter cable being electrically connected to a first-type multiplexer, the data adapter cable passing through the display area, and the other end of each data adapter cable being electrically connected to the data pins.

[0081] As can be seen from the above, the technical solution provided by the embodiments of the present invention passes the data adapter cable electrically connected to the first type of multiplexer through the display area and is electrically connected to the data pin located in the chip bonding area. Therefore, the area occupied by the data adapter cable in the bezel area is reduced. This not only effectively releases the wiring space in the bezel area, but also reduces the width of the bezel area, realizing the development trend of narrower bezels in display devices.

[0082] In the description of this invention, it should be understood that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] In this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0085] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0086] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0087] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A display panel, characterized in that, include: In a first direction, the border area includes a chip bonding area located on a first side of the display area, the chip bonding area including a plurality of data pins; in a second direction, and on the first side of the display area, at least one edge of the display area includes an arc-shaped edge, the first direction and the second direction intersect. Multiple multiplexers, including multiple first-type multiplexers, which are arranged along the arcuate edge of the display area; Multiple data adapter cables, one end of which is electrically connected to the first type of multiplexer, the data adapter cables pass through the display area, and the other end of which is electrically connected to the data pin; The plurality of multiplexers includes a plurality of second-type multiplexers, and the border area includes a plurality of data transmission lines, one end of which is electrically connected to the second-type multiplexer, and the other end of which is electrically connected to the data pin; The plurality of multiplexers are arranged sequentially along the edge of the display area toward the chip bonding area. The plurality of multiplexers also include at least one third type multiplexer, which is located between the plurality of first type multiplexers and the plurality of second type multiplexers. The display panel also includes at least one data input line, one end of which is electrically connected to the third type multiplexer, the data input line passes through the display area, and the other end of which is electrically connected to the data pin. Between the multiplexer and the data pin, the segments of the data adapter cable, the data input line, and the data transmission line all extend along the first direction.

2. The display panel according to claim 1, characterized in that, The first type of multiplexer is continuously arranged along the arc edge of the display area.

3. The display panel according to claim 1, characterized in that, In the second direction, and on the first side of the display area, at least one edge of the display area includes an R-angle, the R-angle being an arc-shaped edge of the display area; At the R-angle, starting from the first multiplexer at the end of the plurality of multiplexers, at least a portion of the multiplexers corresponding to the R-angle are the first type of multiplexers.

4. The display panel according to claim 1, characterized in that, In the second direction, and on the first side of the display area, at least one edge of the display area is an arc, and the arc is the arc-shaped edge of the display area; At the arc, starting from the first multiplexer at the end of the plurality of multiplexers, at least a portion of the multiplexers corresponding to the arc are the first type of multiplexers.

5. The display panel according to claim 4, characterized in that, In the second direction, and on the first side of the display area, both sides of the display area are arcs and are defined as a first arc and a second arc, respectively; The opposite endpoints of the first arc and the second arc are the same endpoint. At any arc in the first arc and the second arc, starting from the first multiplexer at the end of the plurality of multiplexers, at most 1 / 2 of the multiplexers corresponding to the arc are the first type of multiplexers.

6. The display panel according to claim 5, characterized in that, The display area is a circular display area.

7. The display panel according to claim 1, characterized in that, The display panel includes shielded signal lines that are disposed on a different layer from the data transfer cable; In a direction perpendicular to the surface of the display panel, at least a portion of the data transfer cable overlaps and is insulated from the shielded signal cable.

8. The display panel according to claim 7, characterized in that, In the display area, the data transfer line includes a broken line segment, which includes a first broken line extending along the first direction and a second broken line extending along the second direction; The shielded signal line includes a first sub-shielded signal line extending along the first direction and a second sub-shielded signal line extending along the second direction; In a direction perpendicular to the surface of the display panel, at least a portion of the first fold line is insulated from and overlaps with the first sub-shielded signal line; and / or, at least a portion of the second fold line is insulated from and overlaps with the second sub-shielded signal line.

9. The display panel according to claim 7, characterized in that, The shielded signal line is a constant voltage signal line.

10. The display panel according to claim 9, characterized in that, The shielded signal line can be a power supply voltage line, a reference voltage line, a level line, or a ground line.

11. The display panel according to claim 1, characterized in that, The display area includes multiple pixel circuits, wherein the data transfer cable is located in the gap area between adjacent pixel circuits in the display area.

12. The display panel according to claim 1, characterized in that, At least a portion of the data adapter cable includes a wire-wound adapter cable extending to the side of the data pin away from the display area; On the side of the data pin away from the display area, the wire-wound adapter is electrically connected to the data pin.

13. The display panel according to claim 1, characterized in that, The data adapter cable segment located in the border area is either on the same layer or on a different layer than the data adapter cable segment located in the display area.

14. The display panel according to claim 1, characterized in that, The display panel includes: substrate; A gate metal layer located on one side of the substrate; A first insulating layer located on the side of the gate metal layer opposite to the substrate; The source / drain metal layer located on the side of the first insulating layer opposite to the substrate; A second insulating layer located on the side of the source / drain metal layer opposite to the substrate; and the transition metal layer located on the side of the second insulating layer away from the substrate; Wherein, at least a portion of the data transfer line is located in the gate metal layer, source / drain metal layer, or transfer metal layer.

15. The display panel according to claim 14, characterized in that, The display panel further includes: an auxiliary insulating layer located on the side of the transition metal layer facing away from the substrate, and an auxiliary metal layer located on the side of the auxiliary insulating layer facing away from the substrate; or, an auxiliary insulating layer located between the gate metal layer and the substrate, and an auxiliary metal layer located between the auxiliary insulating layer and the substrate. Wherein, at least a portion of the data transfer line is located in the gate metal layer, source / drain metal layer, transfer metal layer, or auxiliary metal layer.

16. The display panel according to claim 15, characterized in that, The dielectric constant of the auxiliary insulating layer is less than 3, and the thickness of the auxiliary insulating layer is greater than 1 micrometer.

17. The display panel according to claim 1, characterized in that, The impedance difference between any two of the aforementioned data adapter cables and data transmission lines is less than 0.1 ohms.

18. The display panel according to claim 1, characterized in that, At least a portion of the data adapter cable has a line width greater than that of the data transmission line.

19. The display panel according to claim 18, characterized in that, The line width of at least a portion of the data adapter cable located in the border area is greater than the line width of at least a portion of the data adapter cable located in the display area.

20. The display panel according to claim 1, characterized in that, In a direction perpendicular to the surface of the display panel, at least a portion of the data transfer cable has a thickness greater than the thickness of the data transmission cable.

21. The display panel according to claim 1, characterized in that, At least a portion of the data transfer cable has a material impedance that is less than that of the data transmission line.

22. The display panel according to claim 1, characterized in that, The border area includes multiple border signal lines extending along the edge of the display area, and the border signal lines extend through the area between the multiplexer and the data pin; At the curved edge, and in the direction perpendicular to the surface of the display panel, the data adapter cable does not overlap with the frame signal line; And / or, in the region between the multiplexer and the data pin, and in the direction perpendicular to the surface of the display panel, both the data transmission line and the data adapter line are insulated from and overlap with the bezel signal line, and the bezel signal line that overlaps with the data transmission line and the bezel signal line that overlaps with the data adapter line are the same bezel signal line.

23. The display panel according to claim 22, characterized in that, The border signal lines are clock signal lines or control signal lines.

24. The display panel according to claim 1, characterized in that, The plurality of multiplexers are arranged sequentially along the edge of the display area toward the chip bonding area, and a line opening is included at the arrangement position of the second type of multiplexer, wherein at least a portion of the data transfer cable passes through the line opening and is electrically connected to the data pin.

25. The display panel according to claim 1, characterized in that, The plurality of multiplexers are arranged sequentially along the edge of the display area toward the chip bonding area, and a line gap is included between any two adjacent second type multiplexers, wherein at least one of the data transfer cables passes through the line gap and is electrically connected to the data pin.

26. A display device, characterized in that, The display device includes the display panel as described in any one of claims 1-25.

Images