CN113744650A - Array substrate and flexible display device - Google Patents
Array substrate and flexible display device Download PDFInfo
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- CN113744650A CN113744650A CN202111045550.1A CN202111045550A CN113744650A CN 113744650 A CN113744650 A CN 113744650A CN 202111045550 A CN202111045550 A CN 202111045550A CN 113744650 A CN113744650 A CN 113744650A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses an array substrate and a flexible display device, wherein the array substrate comprises a substrate and a plurality of signal wires positioned on the substrate, the substrate comprises a display area and a bending area arranged on at least one side of the display area, and the signal wires arranged corresponding to the bending area extend along the arrangement direction of the bending area relative to the display area; the at least one signal line arranged corresponding to the bending area comprises at least one row of patterning structures extending along the extending direction of the signal line, and the row of patterning structures comprise a plurality of outward-expanding structures and a plurality of stress release structures; the outward-expanding structures and the stress releasing structures are arranged along the extending direction of the signal line, the outward-expanding structures are outward expanded towards the direction far away from the central axis of the patterning structures in the corresponding row, and the stress releasing structures are used for releasing the stress at the positions, provided with the stress releasing structures, on the patterning structures. Through the technical scheme of the invention, the probability of damage and fracture of the signal wire arranged corresponding to the bending area due to stress concentration is effectively reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to an array substrate and a flexible display device.
Background
The flexible display device is a flexible display device, the display modes of the flexible display device comprise various types such as organic electroluminescence display, electrophoresis display and liquid crystal display, and the flexible display device which is flexible and bendable has good portability, is convenient to use at any place and can bring subversive use experience to users.
The bending area of the flexible display device has a plurality of signal lines for transmitting display signals and display control signals, and the flexible display device has higher probability of damage and fracture of the signal lines corresponding to the bending area due to stress concentration in the bending process, so that the flexible display device has the problem of abnormal display.
Disclosure of Invention
The invention provides an array substrate and a flexible display device, which effectively reduce the probability of damage and fracture of signal lines arranged corresponding to a bending area due to stress concentration, and further reduce the probability of abnormal display of the flexible display device.
In a first aspect, an embodiment of the present invention provides an array substrate, including:
the substrate comprises a display area and a bending area arranged on at least one side of the display area, and the signal lines arranged corresponding to the bending area extend along the arrangement direction of the bending area relative to the display area;
the at least one signal line arranged corresponding to the bending area comprises at least one column of patterning structures extending along the extending direction of the signal line, and the one column of patterning structures comprise a plurality of outward expansion structures and a plurality of stress release structures;
the outward-expanding structures and the stress releasing structures are arranged along the extending direction of the signal line, the outward-expanding structures are outward expanded towards the direction far away from the central axis of the patterning structures in the corresponding row, and the stress releasing structures are used for releasing the stress at the positions, where the stress releasing structures are arranged, on the patterning structures.
The patterned signal line is favorable for releasing stress on the signal line corresponding to the bending area, and the stress release structure is favorable for releasing stress at the stress release structure on the signal line, so that the probability of damage and fracture of the signal line corresponding to the bending area due to stress concentration is effectively reduced, and the probability of abnormal display problem of the flexible display device is further reduced.
Further, the flaring structure comprises a ring-like structure, and the stress release structure comprises a notch structure;
at least part of the similar ring structures are provided with the notch structures, and the notch structures are arranged on one side of the corresponding similar ring structures along the direction perpendicular to the arrangement direction of the similar ring structures.
When the flexible display device is bent, the notch structure is arranged to release the stress at the notch structure on the patterning structure, so that the probability of damage and fracture of the signal line arranged in the corresponding bending area due to stress concentration is effectively reduced, and the probability of abnormal display problem of the flexible display device is reduced.
Further, at least one signal line includes a plurality of rows of the patterned structures, and along a direction perpendicular to the arrangement direction of the ring-like structures, the ring-like structures in different rows of the patterned structures are aligned, or the ring-like structures in different rows of the patterned structures are staggered.
A plurality of signal paths exist at the overlapping position of the upper and lower adjacent circular ring structures of the signal line, and the influence of the broken line on the signal transmission process is greatly reduced. In addition, compared with the signal line which only comprises a row of patterning structures, the whole line width of the signal line is increased, and the probability that the signal line arranged corresponding to the bending area is damaged and broken due to stress concentration is further reduced.
Further, along a direction perpendicular to the arrangement direction of the quasi-ring structures, the quasi-ring structures in different rows of the patterned structures are arranged in a staggered manner;
the notch structures in at least one row of the patterned structures are aligned with the overlapped parts of two adjacent circular ring-like structures in at least one other row of the patterned structures.
The signal lines are provided with a plurality of signal paths, and the influence of broken lines on the signal transmission process is greatly reduced when the flexible display device is bent. In addition, stress applied to the overlapped part of two adjacent circular ring structures in the adjacent-row patterned structure aligned with the notch structure is effectively released by utilizing the notch structure, so that the probability of damage and fracture of the signal line arranged corresponding to the bending area due to stress concentration is reduced, and the probability of abnormal display problem of the flexible display device is reduced.
Further, along a direction perpendicular to the arrangement direction of the quasi-circular ring structures, in a row of the patterned structures, different notch structures are located on the same side or different sides of the corresponding quasi-circular ring structures.
Further, the ring-like structure includes a circular ring structure, a diamond ring structure or an elliptical ring structure.
Further, the flaring structures include at least two flaring arcs, the at least two flaring arcs in one flaring structure are respectively located on two sides of the central axis of the corresponding row of the patterned structures along a direction perpendicular to the arrangement direction of the flaring structures, and the stress release structure includes a widened line structure;
along the arrangement direction of the outward-expanding structures, at least one side of at least part of the outward-expanding structures is provided with the widened line structure, and along the direction perpendicular to the arrangement direction of the outward-expanding structures, the width of the widened line structure is larger than the distance between the farthest points of the corresponding outward-expanding structures.
When the probability of disconnection of the overlapped part of the upper and lower adjacent circular ring structures is reduced, the flexible display device is bent, the position where the deformation is easier comprises at least two outward expansion arc lines, at least two signal paths exist, and the influence of the disconnection on the signal transmission process is reduced.
Further, the flaring structure comprises an even number of flaring arcs, and the number of the flaring arcs located on two sides of the central axis of the patterning structure in the corresponding column is equal along the direction perpendicular to the arrangement direction of the flaring structure.
When more signal paths are provided to reduce the influence of broken lines on the signal transmission process, the number of the outward-expanding arc lines on two sides of the central shaft of the patterning structure in the corresponding row is equal along the direction perpendicular to the arrangement direction of the outward-expanding structure, so that the uniformity of stress release at the outward-expanding structure is improved, and the probability of broken lines of the signal lines arranged corresponding to the bending area is further reduced.
Furthermore, in one row of the patterned structures, along the arrangement direction of the outward-expanding structures, the widened line structures are arranged on two sides of each outward-expanding structure;
in one row of the patterned structures, the extending directions of the adjacent widened line structures are parallel to each other, or the extending directions of the adjacent widened line structures are not parallel and the extending directions of the widened line structures are periodically changed.
To improve the uniformity of stress relief.
Further, at least one of the signal lines includes a plurality of columns of patterned structures, and in a direction perpendicular to the arrangement direction of the flaring structures, the widened line structures in different columns of the patterned structures are aligned, and the flaring structures in different columns of the patterned structures are aligned.
Compared with the signal line which only comprises a column of patterning structures, the line width of the signal line is increased, so that the probability of damage and fracture of the signal line arranged corresponding to the bending area due to stress concentration is further reduced. Meanwhile, the probability of disconnection at the overlapped part of the upper and lower adjacent circular ring structures is reduced, at least two signal paths exist at the position where the flexible display device is easy to deform when being bent, and the influence of the disconnection on the signal transmission process is reduced.
In a second aspect, an embodiment of the present invention further provides a flexible display device, including the array substrate according to the first aspect.
The patterned signal line is favorable for releasing stress on the signal line corresponding to the bending area, and the stress release structure is favorable for releasing stress at the stress release structure on the signal line, so that the probability of damage and fracture of the signal line corresponding to the bending area due to stress concentration is effectively reduced, and the probability of abnormal display problem of the flexible display device is further reduced.
The embodiment of the invention provides an array substrate and a flexible display device, wherein the array substrate comprises a substrate and a plurality of signal wires positioned on the substrate, the substrate comprises a display area and a bending area arranged on at least one side of the display area, and the signal wires arranged corresponding to the bending area extend along the arrangement direction of the bending area relative to the display area. The at least one signal line arranged corresponding to the bending area comprises at least one row of patterning structures extending along the extending direction of the signal line, each row of patterning structures comprises a plurality of outward-expanding structures and a plurality of stress releasing structures, the outward-expanding structures and the stress releasing structures are arranged along the extending direction of the signal line, the outward-expanding structures are outward-expanded towards the direction far away from the central axis of the corresponding row of patterning structures, the stress releasing structures are used for releasing the stress at the positions where the stress releasing structures are arranged on the patterning structures, and the patterned signal line is beneficial to releasing the stress on the signal line arranged corresponding to the bending area, and the stress release structure is arranged to be beneficial to releasing the stress at the position of the stress release structure arranged on the signal wire, so that the probability that the signal wire arranged corresponding to the bending area is damaged and broken due to stress concentration is effectively reduced, and the probability that the flexible display device has abnormal display problem is further reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic top view of an array substrate according to an embodiment of the present invention;
fig. 2 is a schematic top view of a signal line according to an embodiment of the present invention;
fig. 3 is a schematic top view of another signal line according to an embodiment of the present invention;
fig. 4 is a schematic top view of another signal line according to an embodiment of the present invention;
fig. 5 is a schematic top view of another signal line according to an embodiment of the present invention;
fig. 6 is a schematic top view of another signal line according to an embodiment of the present invention;
fig. 7 is a schematic top view of another signal line according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a flexible display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Throughout this specification, the same or similar reference numbers refer to the same or similar structures, elements, or processes. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The embodiment of the invention provides an array substrate and a flexible display device, wherein the array substrate comprises a substrate and a plurality of signal wires positioned on the substrate, the substrate comprises a display area and a bending area arranged on at least one side of the display area, and the signal wires arranged corresponding to the bending area extend along the arrangement direction of the bending area relative to the display area; the at least one signal line arranged corresponding to the bending area comprises at least one row of patterning structures extending along the extending direction of the signal line, and the row of patterning structures comprise a plurality of outward-expanding structures and a plurality of stress release structures; the outward-expanding structures and the stress releasing structures are arranged along the extending direction of the signal line, the outward-expanding structures are outward expanded towards the direction far away from the central axis of the patterning structures in the corresponding row, and the stress releasing structures are used for releasing the stress at the positions, provided with the stress releasing structures, on the patterning structures.
The flexible display device is a flexible display panel, the display modes of the flexible display device comprise various types such as organic electroluminescence display, electrophoresis display and liquid crystal display, and the flexible display device which can be deformed and bent has good portability, is convenient to use at any place and can bring subversive use experience to users. The flexible display device has many signal lines of transmission display signal and display control signal in bending region, and flexible display device is at the in-process of buckling, and the signal line that corresponds bending region setting is higher because of the impaired cracked probability of stress concentration, and then leads to flexible display device to have the problem of showing unusually.
The array substrate provided by the embodiment of the invention comprises a substrate and a plurality of signal wires positioned on the substrate, wherein the substrate comprises a display area and a bending area arranged on at least one side of the display area, and the signal wires arranged corresponding to the bending area extend along the arrangement direction of the bending area relative to the display area. The at least one signal line arranged corresponding to the bending area comprises at least one row of patterning structures extending along the extending direction of the signal line, each row of patterning structures comprises a plurality of outward-expanding structures and a plurality of stress releasing structures, the outward-expanding structures and the stress releasing structures are arranged along the extending direction of the signal line, the outward-expanding structures are outward-expanded towards the direction far away from the central axis of the corresponding row of patterning structures, the stress releasing structures are used for releasing the stress at the positions where the stress releasing structures are arranged on the patterning structures, and the patterned signal line is beneficial to releasing the stress on the signal line arranged corresponding to the bending area, and the stress release structure is arranged to be beneficial to releasing the stress at the position of the stress release structure arranged on the signal wire, so that the probability that the signal wire arranged corresponding to the bending area is damaged and broken due to stress concentration is effectively reduced, and the probability that the flexible display device has abnormal display problem is further reduced.
Fig. 1 is a schematic top view of an array substrate according to an embodiment of the present invention, and fig. 2 is a schematic top view of a signal line according to an embodiment of the present invention. Referring to fig. 1 and 2, the array substrate includes a substrate 1 and a plurality of signal lines 2 disposed on the substrate 1, where the substrate 1 includes a display area AA and a bending area CC disposed on at least one side of the display area AA, where the bending area CC is exemplarily disposed on one side of the display area AA, and as shown in fig. 1, the bending area CC is disposed below the display area AA, and the signal lines 2 disposed corresponding to the bending area CC extend along a disposing direction XX' of the bending area CC relative to the display area AA. The at least one signal line 2 disposed corresponding to the bending region CC includes at least one row of patterned structures 3 extending along an extending direction XX 'of the signal line 2, the one row of patterned structures 3 includes a plurality of flaring structures 31 and a plurality of stress releasing structures 32, the flaring structures 31 and the stress releasing structures 32 are arranged along the extending direction XX' of the signal line 2, the flaring structures 31 flare outward in a direction away from a central axis X1 of the corresponding row of patterned structures 3, and the stress releasing structures 32 are used for releasing stress at positions on the patterned structures 3 where the stress releasing structures 32 are disposed.
Specifically, fig. 2 exemplarily shows one signal line 2 disposed corresponding to the bending region CC, and with reference to fig. 1 and fig. 2, the patterned signal line 2 is favorable for releasing stress on the signal line 2 disposed corresponding to the bending region CC relative to the signal line 2 on the whole surface, and the stress releasing structure 32 is favorable for releasing stress at the position where the stress releasing structure 32 is disposed on the signal line 2, so as to effectively reduce the probability that the signal line 2 disposed corresponding to the bending region CC is damaged and broken due to stress concentration, thereby reducing the probability that the flexible display device has an abnormal display problem.
With reference to fig. 1 and fig. 2, it may be configured that the flaring structure 31 includes a similar ring structure 41, the stress releasing structure 32 includes a notch structure 42, at least a portion of the similar ring structure 41 is provided with the notch structure 42, and the notch structure 42 is disposed on one side of the corresponding similar ring structure 41 along a direction YY' perpendicular to the arrangement direction of the similar ring structure 41. Specifically, be provided with breach structure 42 on class ring structure 41, when flexible display device buckles, for the position that does not set up breach structure 42, the position constraint that is provided with breach structure 42 is less, produces deformation easily, and the setting of breach structure 42 is favorable to releasing the stress that is provided with breach structure 42 department on the patterning structure 3 promptly, and then has effectively reduced the signal line 2 that corresponds bending region CC and set up because of the impaired cracked probability of stress concentration, has reduced flexible display device and has had the probability that shows unusual problem.
Fig. 3 is a schematic top view of another signal line according to an embodiment of the present invention, and fig. 4 is a schematic top view of another signal line according to an embodiment of the present invention. In connection with fig. 1, 3 and 4, at least one signal line 2 may be arranged to include a plurality of columns of patterned structures 3, fig. 3 and 4 exemplarily show one signal line 2 arranged corresponding to the bending region CC, and exemplarily one signal line 2 including two columns of patterned structures 3, and along a direction YY' perpendicular to the arrangement direction of the ring-like structures 41, the ring-like structures 41 in different columns of patterned structures 3 may be arranged in alignment, for example, the ring-like structures 41 in the left column of patterned structures 3 are arranged in alignment with the ring-like structures 41 in the right column of patterned structures 3.
Specifically, with reference to fig. 1, 3 and 4, since the position d is an overlapping position of two adjacent upper and lower circular ring structures 41, the line width at the position d is smaller than that at other positions, and the stress relief structure 32 such as the notch structure 42 is not disposed at the position d, when the flexible display device is bent, the d position of the signal line 2 is prone to cause a disconnection problem due to relatively concentrated stress. The signal line 2 provided by the embodiment of the invention includes a plurality of rows of patterned structures 3, and along a direction YY' perpendicular to the arrangement direction of the circular ring-like structures 41, the circular ring-like structures 41 in different rows of patterned structures 3 are aligned, so that a plurality of signal paths e exist at a position d of the signal line 2, where two signal paths e, namely a left signal path and a right signal path, are schematically provided at the position d. Therefore, when the flexible display device is bent, if one signal path e is broken due to concentrated stress, corresponding signals can be transmitted through other signal paths e, and the influence of the broken line on the signal transmission process is greatly reduced. In addition, one signal line 2 is arranged to include a plurality of rows of patterned structures 3, and the signal line 2 includes only one row of patterned structures 3, so that the overall line width of the signal line 2 is increased, and the probability that the signal line 2 arranged corresponding to the bending region CC is damaged and broken due to stress concentration is further reduced.
Fig. 5 is a schematic top view of another signal line according to an embodiment of the present invention. Unlike the signal lines of the structures shown in fig. 3 and 4, the signal lines of the structure shown in fig. 5 are arranged along the direction YY' perpendicular to the arrangement direction of the circular ring-like structures 41, the circular ring-like structures 41 in different columns of patterned structures 3 are arranged in a staggered manner, and the notch structures 42 in at least one column of patterned structures 3 can be arranged in alignment with the overlapped part d of two adjacent circular ring structures 41 in at least one other column of patterned structures 3. In particular, with reference to fig. 1 and 5, since the position where the notch structure 42 is disposed is less restricted relative to the position where the notch structure 42 is not disposed, the position where the notch structure 42 is disposed is easily deformed when the flexible display device is bent, that is, the disposition of the notch structure 42 is beneficial to releasing the stress at the position where the notch structure 42 is disposed on the patterned structure 3. In addition, since the position d is an overlapping position of two adjacent types of circular ring structures 41, the line width at the position d is small, and the position d is not provided with the stress release structure 32 such as the notch structure 42, the problem of line breakage is easily caused at the position d due to concentrated stress when the flexible display device is bent.
In the embodiment of the present invention, the circular ring-like structures 41 in different rows of the patterned structures 3 are arranged in a staggered manner, the notch structures 42 in at least one row of the patterned structures 3 are arranged in alignment with the overlapping positions of two adjacent circular ring structures 41 in at least one other row of the patterned structures 3, so that a plurality of signal paths exist in the signal line 2, and here, it is schematically arranged that two signal paths e exist in the signal line 2, that is, a left signal path e and a right signal path e. In addition, the notch structure 42 is utilized to effectively release the stress applied to the overlapped part d of the two adjacent circular ring structures 41 in the patterned structure 3 aligned with the notch structure, so that the probability of the signal line 2 arranged corresponding to the bending region CC being damaged and broken due to stress concentration is reduced, and the probability of the flexible display device having an abnormal display problem is reduced.
Alternatively, along the direction YY' perpendicular to the arrangement direction of the ring-like structures 41, in a column of the patterned structures 3, different notch structures 42 are located on the same side or different sides of the corresponding ring-like structures 41. As shown in the signal lines 2 of the structures shown in fig. 2 and 3, different notch structures 42 in one column of the patterned structures 3 are located on different sides of the corresponding ring-like structures 41, as shown in the signal lines 2 of the structures shown in fig. 4 and 5, and different notch structures 42 in one column of the patterned structures 3 are located on the same side of the corresponding ring-like structures 41. For example, fig. 2 to 5 exemplarily set the circular ring-like structure as a circular ring-shaped structure, and may also set the circular ring-like structure 41 as a diamond-shaped circular ring-shaped structure or an elliptical circular ring-shaped structure, which is not limited in this embodiment of the present invention.
Fig. 6 is a schematic top view of another signal line according to an embodiment of the present invention. Unlike the signal lines of the structures shown in fig. 2 to 5, in the signal line 2 of the structure shown in fig. 6, the flared structures 31 include at least two flared lines 51, the at least two flared lines 51 of one flared structure 31 are respectively located on both sides of the central axis X1 of the patterned structures 3 of the corresponding column in the direction YY' perpendicular to the arrangement direction of the flared structures 31, and the stress relieving structure 32 includes a widened line structure 52. Along the arrangement direction XX 'of the flaring structures 31, at least one side of at least part of the flaring structures 31 is provided with a widened line structure 52, and along the direction YY' perpendicular to the arrangement direction of the flaring structures 31, the width d1 of the widened line structure 52 is greater than the distance d2 between the farthest points of the corresponding flaring structures 31.
Specifically, referring to fig. 1 and 6, the position of the widened line structure 52 is set as position a, and if the widened line structure 52 is not set at position a, a column of patterned structures 3 is in a shape of connecting a plurality of 8-shapes together, and the line width is extremely narrow at the middle position of the 8-shape and has only one signal path, so that the display abnormality of the flexible display device is easily caused by the disconnection. The middle position of the outward expansion arc line 51 is set as a position B, the connection position of the outward expansion arc line 51 and the corresponding widened line structure 52 is set as a position C, the embodiment of the invention sets the widened line structure 52 at the position A and sets a direction YY' perpendicular to the arrangement direction of the outward expansion structure 31, the width d1 of the widened line structure 52 is greater than the distance d2 between the farthest points of the corresponding outward expansion structure 31, so that the line width of the signal line 2 corresponding to the position A is greater than the line width of the signal line 2 corresponding to the position B, the line width is greater than the line width of the signal line 2 corresponding to the position C, the bending is most likely to occur at the position C, the bending is least likely to occur at the position B, the bending is least likely to occur at the position A, the breakage probability at the position A is reduced, deformation is more likely to occur at the positions B and C when the flexible display device board is bent, the outward expansion structure 31 is set to include at least two outward expansion arc lines 51, and when the flexible display device causes one signal path e to be disconnected, the corresponding signal can be transmitted through the other signal path e, so that the influence of the disconnection on the signal transmission process is reduced.
Alternatively, in conjunction with fig. 1 and 6, it may be provided that the flaring structures 31 include an even number of flaring arc lines 51, and the number of flaring arc lines 51 located on both sides of the central axis X1 of the corresponding row of patterned structures 3 is equal along the direction YY' perpendicular to the arrangement direction of the flaring structures 31. Specifically, fig. 6 exemplarily shows that the flaring structure 31 includes two flaring arcs 51, and may further include four or six flaring arcs 51, and one flaring arc 51 corresponds to one signal path, so that while more signal paths are provided to reduce the influence of the broken line on the signal transmission process, the number of the flaring arcs 51 on two sides of the central axis YY 'of the corresponding row of the patterning structure 3 along the direction YY' perpendicular to the arrangement direction of the flaring structure 31 is equal, which is beneficial to improving the uniformity of the stress release at the flaring structure 31, and further reduces the probability of the broken line of the signal line 2 disposed corresponding to the bending region CC.
Alternatively, a column of the patterned structures 3 may be provided, and along the arrangement direction XX 'of the flaring structures 31, both sides of each flaring structure 31 are provided with the widened line structures 52, and in the column of the patterned structures 3, the extending directions aa' of the adjacent widened line structures 52 are parallel to each other, as shown in fig. 6. The extending directions aa ' of the adjacent widened line structures 52 may be not parallel, and the extending directions aa ' of the widened line structures 52 may be periodically changed, for example, an included angle between the extending directions aa ' of all odd-numbered stages of widened line structures 52 and the horizontal direction may be set to be 45 °, and an included angle between the extending directions aa ' of the even-numbered stages of widened line structures 52 and the horizontal direction may be 135 °, so that the extending directions aa ' of the widened line structures 52 are periodically changed, and the uniformity of stress release is improved.
Fig. 7 is a schematic top view of another signal line according to an embodiment of the present invention. On the basis of the above-described embodiment, as shown in fig. 7, at least one signal line 2 may be provided to include a plurality of columns of patterned structures 3, where an exemplary arrangement of one signal line 2 includes two columns of patterned structures 3, along a direction YY' perpendicular to the arrangement direction of the flared structures 31, the widened line structures 52 in different columns of patterned structures 3 are arranged in alignment, and the flared structures 31 in different columns of patterned structures 3 are arranged in alignment. In this way, one signal line 2 is arranged to include a plurality of rows of patterned structures 3, and the signal line 2 includes only one row of patterned structures 3, so that the line width of the signal line 2 is increased, and the probability that the signal line 2 arranged corresponding to the bending region CC is damaged and broken due to stress concentration is further reduced. Meanwhile, the disconnection probability at the position A is reduced, the flexible display device is easy to deform at the position B and the position C when being bent, at least two signal paths e exist at the position B and the position C, and the influence of the disconnection on the signal transmission process is reduced. For example, fig. 6 and 7 schematically set the flaring arc 51 as a flaring circular arc, and the flaring arc 51 may also be a flaring diamond arc or a flaring elliptical arc, which is not limited by the embodiment of the present invention.
It should be noted that the drawings of the embodiments of the present invention only schematically show the sizes of the structures, and do not represent the actual sizes of the structures in the array substrate.
The array substrate provided by the embodiment of the invention comprises a substrate and a plurality of signal wires positioned on the substrate, wherein the substrate comprises a display area and a bending area arranged on at least one side of the display area, and the signal wires arranged corresponding to the bending area extend along the arrangement direction of the bending area relative to the display area. The at least one signal line arranged corresponding to the bending area comprises at least one row of patterning structures extending along the extending direction of the signal line, each row of patterning structures comprises a plurality of outward-expanding structures and a plurality of stress releasing structures, the outward-expanding structures and the stress releasing structures are arranged along the extending direction of the signal line, the outward-expanding structures are outward-expanded towards the direction far away from the central axis of the corresponding row of patterning structures, the stress releasing structures are used for releasing the stress at the positions where the stress releasing structures are arranged on the patterning structures, and the patterned signal line is beneficial to releasing the stress on the signal line arranged corresponding to the bending area, and the stress release structure is arranged to be beneficial to releasing the stress at the position of the stress release structure arranged on the signal wire, so that the probability that the signal wire arranged corresponding to the bending area is damaged and broken due to stress concentration is effectively reduced, and the probability that the flexible display device has abnormal display problem is further reduced.
Fig. 8 is a schematic structural diagram of a flexible display device according to an embodiment of the present invention. As shown in fig. 8, the flexible display device 91 includes the array substrate 92 in the above embodiments, so that the flexible display device 91 provided in the embodiment of the present invention also has the beneficial effects described in the above embodiments, and further description is omitted here. The flexible display device may be, for example, a mobile phone terminal, a tablet computer, a mobile phone of a vehicle-mounted display device, or an electronic device such as a wearable device.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. An array substrate, comprising:
the substrate comprises a display area and a bending area arranged on at least one side of the display area, and the signal lines arranged corresponding to the bending area extend along the arrangement direction of the bending area relative to the display area and the arrangement direction of the bending area relative to the display area;
the at least one signal line arranged corresponding to the bending area comprises at least one column of patterning structures extending along the extending direction of the signal line, and the one column of patterning structures comprise a plurality of outward expansion structures and a plurality of stress release structures;
the outward-expanding structures and the stress releasing structures are arranged along the extending direction of the signal line, the outward-expanding structures are outward expanded towards the direction far away from the central axis of the patterning structures in the corresponding row, and the stress releasing structures are used for releasing the stress at the positions, where the stress releasing structures are arranged, on the patterning structures.
2. The array substrate of claim 1, wherein the flaring structure comprises a ring-like structure and the stress relieving structure comprises a notch structure;
at least part of the similar ring structures are provided with the notch structures, and the notch structures are arranged on one side of the corresponding similar ring structures along the direction perpendicular to the arrangement direction of the similar ring structures.
3. The array substrate of claim 2, wherein at least one of the signal lines comprises a plurality of rows of the patterned structures, and the ring-like structures in different rows of the patterned structures are aligned in a direction perpendicular to the arrangement direction of the ring-like structures.
4. The array substrate of claim 2, wherein at least one of the signal lines comprises a plurality of rows of the patterned structures, and the circular ring-like structures in different rows of the patterned structures are staggered along a direction perpendicular to the arrangement direction of the circular ring-like structures.
5. The array substrate of claim 4, wherein the gap structures in at least one row of the patterned structures are aligned with the overlapping portions of two adjacent ring-like structures in at least one other row of the patterned structures.
6. The array substrate of any one of claims 2 to 5, wherein in a direction perpendicular to the arrangement direction of the ring-like structures, different gap structures in a column of the patterned structures are located on the same side or different sides of the corresponding ring-like structures.
7. The array substrate of any one of claims 2-6, wherein the ring-like structure comprises a circular ring structure, a diamond ring structure, or an oval ring structure.
8. A flexible display device comprising the array substrate according to any one of claims 1 to 7.
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| CN202111045550.1A CN113744650B (en) | 2019-04-29 | 2019-04-29 | Array substrate and flexible display device |
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| CN201910357169.5A CN109887420B (en) | 2019-04-29 | 2019-04-29 | Array substrate and flexible display device |
| CN202111045550.1A CN113744650B (en) | 2019-04-29 | 2019-04-29 | Array substrate and flexible display device |
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Also Published As
| Publication number | Publication date |
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| CN113744650B (en) | 2023-06-16 |
| CN109887420B (en) | 2021-10-15 |
| CN109887420A (en) | 2019-06-14 |
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