CN114882833A

CN114882833A - Display panel

Info

Publication number: CN114882833A
Application number: CN202210565191.0A
Authority: CN
Inventors: 金慧俊; 王听海; 秦丹丹
Original assignee: Shanghai AVIC Optoelectronics Co Ltd
Current assignee: Shanghai AVIC Optoelectronics Co Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-08-09

Abstract

The application provides a display panel, which comprises an array substrate, a driving assembly and a signal transmission assembly, wherein the array substrate is electrically connected with the signal transmission assembly, the array substrate comprises a display area and a non-display area, at least part of the non-display area surrounds the display area, the non-display area comprises a binding area, the driving assembly is arranged in the binding area which is long-strip-shaped and extends along a first direction, the binding area comprises a first section and a second section which are distributed along the first direction, the average distance between the first section and the display area is a first distance, the average distance between the second section and the display area is a second distance, and the first distance is greater than the second distance; the binding region further comprises a first pin and a second pin, the first pin is arranged in the second section, the first pin is connected with the driving assembly and used for transmitting an electric signal to the driving assembly, and the second pin is connected with the driving assembly and used for receiving the electric signal of the driving assembly. The driving assembly is obliquely arranged relative to the edge of the display area, and the first pins are intensively arranged in the area, so that the space required by the pins is reduced, and the effect of reducing the frame is achieved.

Description

Display panel

Technical Field

The present application relates to the field of display, and in particular, to a display panel.

Background

In the prior art, the array circuit in the display area is mostly connected with the driving chip through the fan-shaped wiring, and then one end of the flexible circuit is connected with the driving chip, and the other end of the flexible circuit is connected with the external circuit, so that the external input of signals is realized. At this moment, a connecting circuit reserved space for the driving chip and the connecting circuit for connecting the driving chip and the flexible circuit is required to be reserved on one side of the array substrate, and the connecting circuit and the flexible circuit are sequentially arranged under the driving chip, so that the reserved space is large, and the narrow frame of the display panel is not facilitated to be realized.

Disclosure of Invention

In view of this, an embodiment of the present invention provides a display panel, including an array substrate, a driving component and a signal transmission component, which are electrically connected, where the array substrate includes a display area and a non-display area at least partially surrounding the display area, the non-display area includes a binding area, the driving component is disposed in the binding area, the binding area is in a strip shape and extends along a first direction, the binding area includes a first segment and a second segment distributed along the first direction, an average distance between the first segment and the display area is a first distance, an average distance between the second segment and the display area is a second distance, and the first distance is greater than the second distance; the binding region further comprises a first pin and a second pin, the first pin is arranged in the second section, the first pin is connected with the driving assembly and used for transmitting an electric signal to the driving assembly, and the second pin is connected with the driving assembly and used for receiving the electric signal of the driving assembly.

Compared with the prior art, the display panel provided by the embodiment of the invention has the following technical effects:

by changing the structure of the existing display panel, the driving assembly is obliquely arranged relative to the edge of the display area, and more space is reserved between the driving assembly and the edge of the array substrate at one end of the driving assembly close to the display area; and the first pins for connecting with the signal transmission assembly are arranged in the area in a concentrated manner and are not arranged on one side of the whole driving assembly along the extension direction of the driving assembly, so that the edge of the array substrate is allowed to be arranged close to one end of the driving assembly far away from the display area, and the frame is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art display panel;

FIG. 2 is a schematic structural diagram of an array substrate panel in the prior art

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

fig. 4 is a schematic structural diagram of an array substrate according to an embodiment of the present invention;

FIG. 5 is a partial enlarged view of area A in FIG. 4;

FIG. 6 is a diagram illustrating a structure of a binding region according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another binding region according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another array substrate 200 according to an embodiment of the invention.

10-a display panel; 11-an array substrate; 111-a display area; 112-non-display area; 12-a drive assembly; 13-a signal transmission component; 20-a display panel; 200-an array substrate; 210-a display area; 211-a control array; 2111-data line; 2112-scan line; 212-fifth edge; 220-non-display area; 221-sixth edge; 222-a seventh edge; 223-eighth edge; 224-a step area; 230-a binding region; 231-first section; 232-second segment; 233-a first edge; 234 — a second edge; 235-a third edge; 236-fourth edge; 240-first pin; 250-a second pin; 260-third pin; 270-a fourth pin; 280-connecting leads; 290-fanout line; 291-first fanout line; 292-a second fanout line; 293-compensation resistance; 300-a signal transmission component; 400-a drive assembly; 500-counter substrate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

Fig. 1 is a schematic structural diagram of a display panel 10 in the prior art, and fig. 2 is a schematic structural diagram of an array substrate 11 in the prior art, please refer to fig. 1 and fig. 2 in combination. In the prior art, the display panel 10 includes an array substrate 11, a driving component 12 and a signal transmission component 13, wherein the array substrate 11 includes a display region 111 and a non-display region 112 disposed around the display region 111, and in the non-display region 112 on one side of the display region 111, the driving component 12 is connected to the array substrate 11; in the non-display area 112 on the same side, the signal transmission device 13 is connected to the array substrate 11, and the signal transmission device 13 is located on the side of the driving device 12 away from the display area 111.

In the above structure, the driving component 12 is disposed parallel to the edge of the array substrate 11, at least two groups of pins on the array substrate 11 for connecting to the input and output terminals of the driving component 12 respectively are arranged parallel to the edge of the array substrate 11, and the pins on the array substrate 11 for connecting to the signal transmission component 13 are also arranged parallel to the edge of the array substrate 11. Therefore, on the side where the driving component 12 and the signal transmission component 13 are disposed, the array substrate 11 needs to provide a space to accommodate the pins disposed row by row, and since a certain distance needs to be maintained between the pins in different rows to avoid mutual interference, the pins occupy a large amount of space, which is not beneficial to frame narrowing.

Fig. 3 is a schematic structural diagram of a display panel 20 according to an embodiment of the present invention, and fig. 4 is a schematic structural diagram of an array substrate 200 according to an embodiment of the present invention, please refer to fig. 3-4 in combination. The display panel 20 includes a driving assembly 400, a signal transmission assembly 300, and an array substrate 200, wherein the array substrate 200 includes a display area 210 and a non-display area 220 disposed around the display area 210, and the driving assembly 400 is connected to the array substrate 200 in the non-display area 220 on one side of the display area 210; in the non-display area 220 on the same side, the signal transmission device 300 is connected to the array substrate 200, and the signal transmission device 300 is located on a side of the driving device 400 away from the display area 210. The driving element 400 is in a long shape, and an extending direction of the driving element 400 forms an included angle with an extending direction of the edge of the array substrate 200, such that a distance from one end of the driving element 400 to the edge of the display region 210 is shorter than a distance from the other end of the driving element 400 to the edge of the display region 210.

Since the distance from the edge of the array substrate 200 is greater at the end (end a) where the distance from the driving element 400 to the edge of the display region 210 is shorter, the pins on the array substrate 200 for connecting the signal transmission elements 300 are disposed there; and the pin for connecting the signal transmission assembly 300 is not arranged at the end (end B) of the driving assembly 400 having the longer distance from the edge of the display area 210, so that the edge of the array substrate 200 can be arranged close to the end of the driving assembly 400 having the longer distance from the edge of the display area 210, thereby reducing the width of the non-display area 220, and achieving the excellent effect of a narrow bezel.

In the present embodiment, the display panel 20 is a liquid crystal display panel 20, the display panel 20 further includes a counter substrate 500, the counter substrate 500 is disposed opposite to the array substrate 200 and covers the display region 210, and the projection of the counter substrate 500 on the array substrate 200 is staggered from the driving assembly 400, wherein in the present embodiment, the counter substrate 500 is a color filter substrate, so that the display function is realized through the cooperation of the array substrate 200, the counter substrate 500 and the liquid crystal between the substrates.

It should be noted that the array substrate 200 exceeds the opposite substrate 500 at one side, the area of the array substrate 200 exceeding the opposite substrate 500 is a step area 224, and the pins on the array substrate 200 for connecting the driving component 400 and the pins for connecting the signal transmission components 300 are disposed in the step area 224.

It is understood that in other alternative embodiments, the type of display panel 20 may also be an Organic Light Emitting Diode (OLED), a sub-millimeter light emitting diode (Mini LED) or a Micro light emitting diode (Micro LED).

In this embodiment, a control array 211 for controlling the display state is disposed in the display area 210, the control array includes a data line 2111 and a scan line 2112 which are arranged perpendicular to each other, one side of the display area 210 close to the driving assembly 400 is parallel to the extending direction of the scan line 2112, and the extending direction of the driving assembly 400 forms an included angle with the extending direction of the scan line 2112, so as to achieve the purpose of obliquely disposing the driving assembly 400.

It is understood that the extending direction of the side of the display region 210 away from the driving component 400 may be parallel to the extending direction of the scan line 2112, or may form an angle with the extending direction of the scan line 2112; the side of the display region 210 away from the driving assembly 400 may also be provided with a notch or an edge that is generally curved.

It is also understood that in other alternative embodiments, one side of the display region 210 close to the driving assembly 400 may have a partial region with a bent shape, a curved shape, etc., such as a corner with a circular arc shape at two ends, etc., to more flexibly match the requirement of the display function, and design the display panel 20 with a special-shaped region.

In the above-mentioned alternative embodiment, since the display region 210 is entirely close to one side of the driving element 400, or at least partially parallel to the extending direction of the scan line 2112, by obliquely disposing the driving element 400 relative to the edge of the display region 210 parallel to the extending direction of the scan line 2112, more space can be provided at an oblique position for the transmission element 300 to be bound with the array substrate 200, thereby achieving the technical effect of shortening the width of the step region 224 in the extending direction of the data line 2111.

It should be noted that, in this embodiment, the array substrate 200 includes a control array 211 and a fan-out line 290, the fan-out line 290 is disposed in the non-display area 220, one end of the fan-out line 290 is connected to the control array 211 disposed in the display area 210, and the other end of the fan-out line 290 is connected to a pin on the array substrate 200 for receiving a signal of the driving assembly 400, so that the signal output by the driving assembly 400 is transmitted to the control array 211, thereby implementing control over a display image.

Optionally, in this embodiment, the array substrate 200 and the display region 210 are both rectangular, and in this case, the driving assembly 400 disposed obliquely can save more space of the array substrate 200, and shorten more frame widths compared with the design in the prior art; meanwhile, the rectangular array substrate 200 and the display area 210 are designed to facilitate processing and production.

It is understood that in other alternative embodiments, any one of the array substrate 200 and the display region 210 may also be any one of a sector shape, a semi-circle shape, a crescent shape, a triangle shape, or any one, two or more of the above shapes in combination with a rectangle shape to match different practical requirements, so as to implement diversified display functions. Meanwhile, no matter what the shape of the side of the display area 210 far from the driving assembly 400, since the display area 210 is close to the driving assembly 400, or at least partially parallel to the extending direction of the scan lines 2112, by obliquely disposing the driving assembly 400 relative to the edge of the display area 210 parallel to the extending direction of the scan lines 2112, more space can be provided at the oblique position for the transmission assembly 300 to bind with the array substrate 200, and the technical effect of shortening the width of the step area 224 in the extending direction of the data lines 2111 is achieved.

It should be noted that, in the embodiment, the driving assembly 400 is an Integrated Circuit (IC), and the signal transmission assembly 300 is a Flexible Printed Circuit (FPC), so as to improve the integration of the whole display panel 20 and simplify the design. In other alternative embodiments, the driving assembly 400 may also be an electronic device with information receiving, processing and outputting functions, and the flexible circuit board may also be another electronic device with information transmitting function.

Fig. 5 is a partially enlarged view of the area a in fig. 4, with reference to fig. 3-5. The non-display area 220 includes a bonding area 230, the driving device 400 is disposed in the bonding area 230, the bonding area 230 is elongated and extends along a first direction, the bonding area 230 includes a first segment 231 and a second segment 232 distributed along the first direction, an average distance between the first segment 231 and the display area 210 is a first distance, an average distance between the second segment 232 and the display area 210 is a second distance, and the first distance is greater than the second distance to increase a distance between the second segment 232 and an edge of the array substrate 200, so that a pin for connecting the signal transmission device 300 is disposed between the second segment 232 and the edge of the array substrate 200.

It should be noted that the first distance is calculated by dividing the sum of the distances between the two ends of the first segment 231 and the display area 210 by 2, and the first distance is calculated by dividing the sum of the distances between the two ends of the second segment 232 and the display area 210 by 2.

It should be noted that the first direction is parallel to the plane of the array substrate 200 and forms an included angle with the extending direction of the edge of the display region 210 near the bonding region 230, so as to achieve the purpose of obliquely disposing the driving element 400.

Fig. 6 is a schematic structural diagram of a bonding area 230 according to an embodiment of the present invention, please refer to fig. 3-6. In this embodiment, the bonding region 230 further includes a first pin 240, the first pin 240 is disposed in the second section 232, and the first pin 240 is connected to the driving assembly 400 and connected to an input interface of the driving assembly 400 to transmit an electrical signal to the driving assembly 400. The bonding region 230 further includes a second pin 250, the second pin 250 is disposed in both the first segment 231 and the second segment 232, and the second pin 250 is connected to the output interface of the driving assembly 400 for receiving the electrical signal of the driving assembly 400. Thereby enabling connection to the driving assembly 400 through the first pin 240 and the second pin 250, and signal input and signal output to the driving assembly 400; meanwhile, since the driving assembly 400 extends along the first direction, the second pins 250 located in the second section 232 are closer to the edge of the display region 210 and farther from the edge of the array substrate 200 than the second pins 250 located in the first section 231. Therefore, the space between the second lead 250 in the second section 232 and the edge of the array substrate 200 can be used for disposing the first lead 240 and the signal transmission assembly 300, thereby achieving the effect of narrowing the bezel.

It should be noted that, in the present embodiment, the bonding region 230 refers to a region where the first pin 240 and the second pin 250 are disposed, that is, a region for bonding the driving component 400; an area where a pin for connecting with the signal transmission member 300 is disposed is not included.

Optionally, in this embodiment, the plurality of second pins 250 are arranged along the first direction, the first pin 240 and the second pin 250 located in the second section 232 at least partially overlap each other along the projection formed by the second direction, and the first pin 240 and the second pin 250 located in the first section 231 are arranged in a staggered manner along the projection formed by the second direction. It should be noted that the second direction is parallel to the array substrate 200 and perpendicular to the first direction. By the arrangement of the first pins 240 and the second pins 250 provided in this embodiment, only the first pins 240 are arranged in the second section 232, but not in the first section 231, so that the area of the first section 231 corresponding to the second section 232 where the first pins 240 are arranged is left; the vacant region enables a section of the first section 231, which is far away from the second section 232, to be arranged close to the edge of the array substrate 200, and reduces the width of the step region 224 in the extending direction of the data line 2111, thereby achieving the technical effect of reducing the width of the frame.

It should be noted that, a region of the first section 231 corresponding to the second section 232 where the first pin 240 is disposed may be partially left out, and a part of the region is used to accommodate other devices; for example, the end of the region away from the second section 232 is left free, and a device is disposed near the end of the second section 232 to achieve more versatile functions.

It is understood that in other alternative embodiments, the first pins 240 overlap with the projection formed by the second pins 250 located in the second section 232 along the second direction, the first pins 240 also overlap with the projection formed by the second pins 250 located in the first section 231 along the second direction, but the length of the overlap with the projection formed by the second pins 250 located in the second section 232 along the second direction is greater than the length of the overlap with the projection formed by the second pins 250 located in the first section 231 along the second direction, so that the first pins 240 can be more centrally disposed in the bonding region 230 relative to the first pins 240 in the embodiments, thereby balancing the distribution of the first pins 240 and the second pins 250 of the bonding region 230, making the distribution of the connection points of the driving component 400 and the array substrate 200 more uniform, making the pressure distribution of the driving component 400 uniform when being bonded to the array substrate 200, avoiding the uneven stress from causing the loose bonding or the driving component to bend, and meanwhile, the stability of connection after binding is improved.

Optionally, the binding region 230 includes a first edge 233 and a second edge 234 disposed opposite to each other in the second direction, and a third edge 235 and a fourth edge 236 disposed opposite to each other in the first direction, and the first edge 233 is located at a smaller distance from the display region 210 than the second edge 234 is located at from the display region 210. Optionally, the third edge 235 and the fourth edge 236 extend along the second direction. Among the second leads 250 located in the second section 232, a portion of the second leads 250 close to the first section 231 is a third distance from the first edge 233, a portion of the second leads 250 far from the first section 231 is a fourth distance from the first edge 233, and the third distance is smaller than the fourth distance. That is, the second leads 250 distributed one by one in the first direction in the second segment 232 are gradually far from the first edge 233, and the distance between the second lead 250 closest to the fourth edge 236 and the first edge 233 is farthest. Because the second pins 250 need to be connected with at least one fanout line 290, the design of the positions of the second pins 250 makes the included angle between the fanout lines 290 connected with the second pins 250 at two ends of the second section 232 larger, which avoids the disadvantage that the arrangement of the fanout lines 290 is too compact, on one hand, the design difficulty is reduced, and on the other hand, the problem of mutual interference between the fanout lines 290 is avoided.

Optionally, in this embodiment, distances between the second leads 250 distributed one by one in the second section 232 along the first direction and the first edge 233 are uniformly increased, so that the second leads 250 in the second section 232 are arranged along a straight line, and an included angle is formed between the extending direction of the straight line and the first direction. By arranging the second pins 250 along a straight line, the design and process difficulty is reduced.

It is understood that in other alternative embodiments, the distances between the second leads 250 and the first edges 233, which are distributed one by one along the first direction in the second section 232, gradually increase, and the difference between the distances between the adjacent second leads 250 and the first edges 233 also gradually increases, so that the second leads 250 in the second section 232 are arranged along an arc and the arc changes faster at the end of the second section 232 away from the first section 231. By this design, the end of the second section 232 away from the first section 231 is as close as possible to the second edge 234, increasing the angle between the fanout lines 290; meanwhile, the end of the second section 232 close to the first section 231 is spaced from the second edge 234 by a relatively large distance, so as to accommodate the first pin 240.

It is understood that in other alternative embodiments, the third distance is equal to the fourth distance, i.e., the second pins 250 in the second section 232 are arranged along the first direction, thereby simplifying the difficulty of pin design and manufacturing process.

Optionally, in this embodiment, in the second leads 250 located in the first section 231, a distance between a portion of the second lead 250 close to the second section 232 and the first edge 233 is a fifth distance, a distance between a portion of the second lead 250 far from the second section 232 and the first edge 233 is a sixth distance, and the fifth distance is smaller than the sixth distance. That is, the second pins 250 distributed one by one in the first section 231 along the direction opposite to the first direction are gradually distant from the first edge 233, and the distance between the second pin 250 closest to the third edge 235 and the first edge 233 is farthest. And the arrangement of the second leads 250 in the second section 232 are matched to form a structure in which the second leads 250 at both ends are far away from the first edge 233 and the second leads 250 in the middle are close to the first edge 233 in the binding region 230 along the first direction.

Because the second pins 250 need to be connected with at least one fanning out line 290, the design of the positions of the second pins 250 makes the included angle between the fanning out lines 290 connected with the second pins 250 at two ends of the first section 231 larger, thereby avoiding the defect that the arrangement of the fanning out lines 290 is too compact, reducing the design difficulty on one hand, and avoiding the problem of mutual interference between the fanning out lines 290 on the other hand. Meanwhile, since the second leads 250 located in the middle region along the first direction in the bonding region 230 are close to the first edge 233, the second leads 250 in this region are located at a larger distance from the second edge 234 and can be used for accommodating the first leads 240.

Optionally, in this embodiment, distances between the second leads 250, which are distributed one by one in the first section 231 along the direction opposite to the first direction, and the first edge 233 are uniformly increased, so that the second leads 250 in the first section 231 are arranged along a straight line, and an included angle is formed between the extending direction of the straight line and the first direction. By arranging the second pins 250 along a straight line, the design and process difficulty is reduced.

It is understood that in other alternative embodiments, the distances between the second pins 250 and the first edge 233, which are distributed one by one in the first section 231 along the reverse direction of the first direction, gradually increase, and the difference between the distances between the adjacent second pins 250 and the first edge 233 also gradually increases, so that the second pins 250 in the first section 231 are arranged along an arc and the arc changes faster at the end of the second section 232 away from the second section 232. By this design, the end of the second section 232 away from the first section 231 is as close as possible to the second edge 234, increasing the angle between the fanout lines 290; meanwhile, the end of the second section 232 close to the first section 231 is spaced from the second edge 234 by a relatively large distance, so as to accommodate the first pin 240.

It is understood that in other alternative embodiments, the fifth distance is equal to the sixth distance, i.e., the second leads 250 in the first section 231 are arranged along the first direction, thereby simplifying the difficulty of the lead design and manufacturing process.

It is understood that, in other alternative embodiments, since the first distance is greater than the second distance, and the included angle between the fanout lines 290 respectively connected to the second pins 250 located at the two ends of the first section 231 is larger, the second pins 250 located at the first section 231 may also be arranged along the first direction, so as to increase the distance between the second pins 250 located at the first section 231 and the edge of the array substrate 200, so as to further narrow the bezel.

Fig. 7 is a schematic structural diagram of another bonding area 230 according to an embodiment of the present invention, please refer to fig. 3-5 and fig. 7 in combination. Optionally, in this embodiment, a projection formed by the second pin 250 located in the first section 231 along the first direction at least partially overlaps a projection formed by the first pin 240 along the first direction, because the first pin 240 is mainly disposed in the second section 232, if the first section 231 and the second pin 250 in the second section 232 are symmetrically disposed, a corresponding position in the first section 231, in which the first pin 240 is disposed, in the second section 232 is left out. The second pins 250 in the first section 231 are closer to the second edge 234, the empty positions are partially filled, the pins including the first pins 240 and the second pins 250 in the balanced binding region 230 are distributed integrally, the connection points of the driving assembly 400 and the array substrate 200 are distributed more uniformly, the pressure distribution of the driving assembly 400 is uniform when the driving assembly 400 is bound to the array substrate 200, the phenomenon that binding is not firm or the driving assembly is bent due to uneven stress is avoided, and meanwhile, the connection stability after binding is improved.

Further, in this embodiment, the average distance between the second pins 250 located in the first section 231 and the first edge 233 is a seventh distance, the average distance between the second pins 250 located in the second section 232 and the first edge 233 is an eighth distance, and the seventh distance is greater than the eighth distance, so that by adjusting the difference between the distances between the second pins 250 located in the first section 231 and the first edge 233 in the second section 232, the overall distribution of the pins including the first pins 240 and the second pins 250 in the balanced bonding region 230 makes the distribution of the connection points between the driving component 400 and the array substrate 200 more uniform, so that the pressure distribution of the driving component 400 is uniform when the driving component 400 is bonded to the array substrate 200, thereby preventing the driving component from being bonded loosely or bent due to uneven stress, and improving the stability of connection after bonding and improving the stability of connection.

It should be noted that the seventh distance is calculated by dividing the sum of the distances between the second pins 250 at the two ends of the first segment 231 and the display area 210 by 2, and the eighth distance is calculated by dividing the sum of the distances between the second pins 250 at the two ends of the second segment 232 and the display area 210 by 2.

Please continue with fig. 3-6. It should be noted that, in this embodiment, the array substrate 200 further includes a third pin 260, the third pin 260 is disposed in the first section 231, the third pin 260 is connected to the driving component 400, and the third pin 260 is electrically insulated from the signal transmission component 300, and by disposing the third pin 260, a partial space left by the first section 231 without the first pin 240 is filled, and the overall distribution of the pins including the first pin 240, the second pin 250, and the third pin 260 in the balanced bonding region 230 makes the connection points of the driving component 400 and the array substrate 200 more uniformly distributed, so that the pressure distribution of the driving component 400 is uniform when the driving component 400 is bonded to the array substrate 200, thereby preventing the bonding from being infirm or the driving component from being bent due to uneven stress, and improving the connection stability after bonding.

In the embodiment, the height of the third pins 260 in the direction perpendicular to the array substrate 200 is the same as the height of the first pins 240 in the direction perpendicular to the array substrate 200, so that the first pins 240 and the third pins 260 provide a close supporting condition for the driving assembly 400 in the height in the direction perpendicular to the array substrate 200, and the driving assembly 400 is prevented from being warped and deformed when being stressed due to the inconsistent heights.

It should be noted that, in the present embodiment, the number of the third pins 260 is the same as the number of the first pins 240, so as to further balance the overall distribution of the pins including the first pins 240, the second pins 250 and the third pins 260 in the bonding region 230, so that the connection points of the driving assembly 400 and the array substrate 200 are more uniformly distributed.

It is understood that in other alternative embodiments, since the seventh distance is greater than the eighth distance, the second lead 250 is located a shorter distance from the second edge 234 in the first segment 231, and the space capable of accommodating the third lead 260 is smaller than the space capable of accommodating the first lead 240. Therefore, the number of the third pins 260 may also be smaller than the number of the first pins 240.

Optionally, in this embodiment, the average distance between the third pins 260 and the third edge 235 is equal to the average distance between the first pins 240 and the fourth edge 236, so as to improve the symmetry between the first pins 240 and the third pins 260 and enhance the stability of the connection with the driving assembly 400.

Based on the same technical purpose, in the present embodiment, the average distance between the third leads 260 and the first edge 233 is equal to the average distance between the first leads 240 and the first edge 233, so as to improve the symmetry between the first leads 240 and the third leads 260 and enhance the stability of connection with the driving assembly 400.

It is understood that in other alternative embodiments, the average distance of the third pins 260 from the third edge 235 and the average distance of the first pins 240 from the fourth edge 236 are not equal; or the average distance between the third pins 260 and the first edge 233 is not equal to the average distance between the first pins 240 and the first edge 233, so that the positions of the third pins 260 and the first pins 240 can be flexibly adjusted according to the design of the input interface and the output interface of the driving assembly 400.

It should be noted that, in this embodiment, a side of the display region 210 close to the bonding region 230 has a fifth edge 212, a side of the array substrate 200 close to the bonding region 230 has a sixth edge 221, and both the fifth edge 212 and the sixth edge 221 extend along the third direction, and the array substrate 200 further includes a seventh edge 222 and an eighth edge 223 oppositely disposed in the third direction, wherein the seventh edge 222 and the eighth edge 223 are respectively disposed on two sides of the sixth edge 221. The second section 232 is closer to the eighth edge 223 than the first section 231, and the minimum spacing between the first section 231 and the seventh edge 222 is greater than the minimum spacing between the second section 232 and the eighth edge 223. Because the second segment 232 close to the eighth edge 223 is closer to the display region 210, the space for routing the fanout line 290 connected to the second segment 232 is smaller, and the arrangement is tighter, the binding region 230 is disposed close to the eighth edge 223, the included angle of the fanout line 290 connected to the second pin 250 in the second segment 232 is increased, and the fanout lines 290 are prevented from being arranged too tightly and interfering with each other.

Optionally, in the present embodiment, the number of the second pins 250 in the first segment 231 is greater than the number of the second pins 250 in the second segment 232. Because the distance between the second pins 250 in the second section 232 and the display region 210 is smaller, and the arrangement of the fanning-out lines 290 connected with the second pins 250 in the second section 232 is tighter, the arrangement of the fanning-out lines 290 is simplified by reducing the number of the second pins 250 in the second section 232, and the mutual interference between the fanning-out lines 290 is avoided.

Fig. 8 is a schematic structural diagram of another array substrate 200 according to an embodiment of the invention, and fig. 4-6 and fig. 8 are combined. The fanout line 290 connected to the second pin 250 located in the first section 231 is a first fanout line 291, the fanout line 290 connected to the second pin 250 located in the second section 232 is a second fanout line 292, the average length of the first fanout line 291 is greater than the average length of the second fanout line 292, and the design that the matching binding area 230 is closer to the eighth edge 223 is realized by shortening the second fanout line 292.

Optionally, in this embodiment, at least one second fanout line 292 is connected in series with the compensation resistor 293 to balance a resistance difference caused by a length difference between the second fanout line 292 and the first fanout line 291, so as to avoid a phenomenon of non-uniform display from affecting a display effect.

It is understood that, in other alternative embodiments, at least a portion of the second fanout line 292 is bent in a serpentine shape to increase the resistance, so as to balance the resistance difference caused by the length difference between the second fanout line 292 and the first fanout line 291, and avoid the display unevenness.

It is also understood that in other alternative embodiments, a partial area of the second fanning-out line 292 is thinner than the first fanning-out line 291 to increase the resistance, so as to also balance the resistance difference caused by the length difference between the second fanning-out line 292 and the first fanning-out line 291, and avoid the display unevenness.

Please continue with fig. 3-6. In this embodiment, the array substrate 200 is provided with a fourth pin 270 and a connection lead 280, the fourth pin 270 and the connection lead 280 are disposed between the bonding region 230 and the edge of the array substrate 200, wherein the fourth pin 270 is connected to the signal transmission assembly 300 and is used for receiving an electrical signal of the signal transmission assembly 300; one end of the connection lead 280 is connected to the fourth pin 270, and the other end of the connection lead 280 is connected to the first pin 240, so that the signal of the signal transmission assembly 300 is transmitted to the driving assembly 400 connected to the first pin 240 through the connection lead 280.

Optionally, in this embodiment, at least two fourth pins 270 are arranged along a third direction, and the signal transmission assembly 300 extends along a fourth direction, where the fourth direction is perpendicular to the third direction and parallel to the plane of the array substrate 200, so that the signal transmission assembly 300 extends along the seventh edge 222 and the eighth edge 223, and a portion of the signal transmission assembly 300 is prevented from protruding the eighth edge 223, which is not favorable for the overall assembly of the display panel 20. Meanwhile, the fourth pins 270 are arranged along the third direction, so that the space occupied by the fourth pins 270 in the fourth direction is reduced, and the narrow frame effect is facilitated to be realized.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel comprises an array substrate, a driving assembly and a signal propagation assembly which are electrically connected, wherein the array substrate comprises a display area and a non-display area at least partially surrounding the display area, the display panel is characterized in that the non-display area comprises a binding area, the driving assembly is arranged in the binding area, the binding area is in a strip shape and extends along a first direction, the binding area comprises a first section and a second section which are distributed along the first direction, the average distance between the first section and the display area is a first distance, the average distance between the second section and the display area is a second distance, and the first distance is larger than the second distance;

the binding region further comprises a first pin, the first pin is arranged in the second section, and the first pin is connected with the driving component and used for transmitting an electric signal to the driving component;

the binding region further comprises a second pin, and the second pin is connected with the driving component and used for receiving an electric signal of the driving component.

2. The display panel of claim 1, wherein the array substrate is rectangular and the display area is rectangular.

3. The display panel according to claim 1, wherein at least two of the first pins are arranged along the first direction, the first pins at least partially overlap with projections formed by the second pins located in the second segment along the second direction, and the first pins are staggered or partially overlapped with projections formed by the second pins located in the first segment along the second direction;

the length of the first pin overlapped with the projection formed by the second pin in the second section along the second direction is greater than the length of the first pin overlapped with the projection formed by the second pin in the first section along the second direction;

the second direction is parallel to the array substrate and is perpendicular to the first direction.

4. The display panel according to claim 3, wherein the binding region includes a first edge and a second edge oppositely disposed in the second direction, and a distance between the first edge and the display region is smaller than a distance between the second edge and the display region;

in the second pins in the second section, the distance between the first edge and the second pin in the part close to the first section is a third distance, the distance between the first edge and the second pin in the part far away from the first section is a fourth distance, and the third distance is smaller than the fourth distance;

and/or in the second pins positioned in the first section, the distance between the first edge and the second pin at the part close to the second section is a fifth distance, the distance between the first edge and the second pin at the part far away from the second section is a sixth distance, and the fifth distance is smaller than the sixth distance.

5. The display panel according to claim 3, wherein the binding region includes a first edge and a second edge oppositely disposed in the second direction, and a distance between the first edge and the display region is smaller than a distance between the second edge and the display region;

the average distance between the second pin in the first section and the first edge is a seventh distance, the average distance between the second pin in the second section and the first edge is an eighth distance, and the seventh distance is greater than the eighth distance.

6. The display panel according to claim 3, wherein a projection of the second pin in the first segment along the first direction at least partially overlaps a projection of the first pin along the first direction.

7. The display panel of claim 1, wherein the array substrate further comprises a third pin disposed in the first segment, the third pin being connected to the driving component and electrically isolated from the signal transmission component.

8. The display panel according to claim 7, wherein the third pins have the same height in a direction perpendicular to the array substrate as the first pins.

9. The display panel according to claim 7, wherein the number of the third pins is the same as the number of the first pins.

10. The display panel according to claim 7, wherein the bonding region includes a third edge and a fourth edge oppositely disposed in the first direction, the bonding region includes a first edge and a second edge oppositely disposed in the second direction, and the second direction is parallel to the array substrate and perpendicular to the first direction;

the distance between the third pin and the third edge is equal to the distance between the first pin and the fourth edge; and/or

The distance between the third pin and the first edge is equal to the distance between the first pin and the first edge.

11. The display panel according to claim 1, wherein the display region further comprises a control array, the control array is electrically connected to the second pin through a fan-out line, the fan-out line is disposed in the non-display region, one end of the fan-out line is connected to the control array, and the other end of the fan-out line is connected to the second pin; the fan-out line connected with the second pin positioned in the first section is a first fan-out line, the fan-out line connected with the second pin positioned in the second section is a second fan-out line, and the average length of the first fan-out line is greater than that of the second fan-out line.

12. The display panel according to claim 11, wherein at least one of the second fanout lines is connected in series with a compensation resistor;

and/or at least part of the second fanout line is in a snake-shaped bent shape;

and/or at least part of the second fanning-out line is thinner than the first fanning-out line.

13. The display panel according to claim 1, wherein a fourth pin and a connection lead are disposed on the array substrate, and the fourth pin is connected to the signal transmission assembly and is configured to receive an electrical signal of the signal transmission assembly;

one end of the connecting lead is connected with the fourth pin, and the other end of the connecting lead is connected with the first pin.

14. The display panel according to claim 13, wherein the non-display area surrounds the display area, the bonding area is disposed at a side outside the display area and inside the non-display area, the display area at the same side has a fifth edge, the non-display area at the same side has a sixth edge, and the fifth edge and the sixth edge extend along the third direction;

at least two fourth pins are arranged along a third direction, and an included angle is formed between the third direction and the first direction.

15. The display panel according to claim 1, wherein the non-display area surrounds the display area, the bonding area is disposed at one side outside the display area and inside the non-display area, and the array substrate at the same side has a sixth edge;

the array substrate further comprises a seventh edge and an eighth edge which are oppositely arranged, the seventh edge and the eighth edge are respectively arranged on two sides of the sixth edge, and the second section is closer to the eighth edge than the first section;

a minimum spacing between the first segment and the seventh edge is greater than a minimum spacing between the second segment and the eighth edge.

16. The display panel according to claim 15, wherein the bonding area comprises second pins, at least two of the second pins are arranged along the first direction, the first pins at least partially overlap with projections formed by the second pins located in the second segment along the second direction, the first pins are arranged in a staggered manner with respect to the projections formed by the second pins located in the first segment along the second direction, and the second direction is parallel to the array substrate and perpendicular to the first direction;

the number of second pins in the first section is greater than the number of second pins in the second section.

17. The display panel according to claim 1, further comprising an opposite substrate disposed opposite to the array substrate and covering the display region, wherein a projection of the opposite substrate on the array substrate is offset from the driving assembly.