CN114093262A - Display panel and display device - Google Patents
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- CN114093262A CN114093262A CN202111370285.4A CN202111370285A CN114093262A CN 114093262 A CN114093262 A CN 114093262A CN 202111370285 A CN202111370285 A CN 202111370285A CN 114093262 A CN114093262 A CN 114093262A
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Abstract
The embodiment of the application provides a display panel and display device, display panel includes display area and non-display area, and non-display area is provided with a plurality of first pads, and first pad extends along first direction, and first pad includes: the extension part is longer than the lapping part along the length of the first direction, the extension part is shorter than the maximum width of the lapping part along the second direction, and the first direction is perpendicular to the second direction. The embodiment of the application can improve or even eliminate the short circuit problem between the adjacent first bonding pads, and improve the yield of the display panel.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
With the development of science and technology and economy, the display panel is more and more widely applied to the production and the life of people. Such as a plasma display panel, a liquid crystal display panel, an organic light emitting diode display panel, a Micro LED display panel, and a Mini LED display panel, are widely used.
Generally, a display panel includes a display area displaying an image and a non-display area located at least one side of the display area. The non-display area can be provided with a bonding pad, and the bonding pad can be used for binding a driving integrated circuit and connecting a detection circuit or detection equipment so as to finish the test work of the array substrate test, the point screen test and the like of the display panel.
However, the inventors of the present application have found that short circuits are likely to occur between pads of the display panel, which may cause a display failure of the display panel.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can improve or even eliminate the problem of short circuit between bonding pads of the display panel and improve the yield of the display panel.
In a first aspect, an embodiment of the present application provides a display panel, where the display panel includes a display area and a non-display area, the non-display area is provided with a plurality of first pads, the first pads extend along a first direction, and the first pads include: the extension part is longer than the lapping part along the length of the first direction, the extension part is shorter than the maximum width of the lapping part along the second direction, and the first direction is perpendicular to the second direction.
According to an embodiment of the first aspect of the present application, the first pad comprises one lap joint; among two adjacent first bonding pads, the lapping part in the first bonding pad is positioned on one side, close to the display area, of the extension part in the first bonding pad, and the lapping part in the second first bonding pad is positioned on one side, far away from the display area, of the extension part in the second first bonding pad.
Therefore, the overlapping part in the first pad in the adjacent first pads is positioned on the side, close to the display area, of the extension part in the first pad, the overlapping part in the second first pad is positioned on the side, far away from the display area, of the extension part in the second first pad, namely the overlapping parts of the adjacent first pads are arranged in a staggered mode, so that on one hand, the space of the display panel can be more fully utilized, a larger number of first pads are arranged in the limited space of the display panel, on the other hand, the distance between the overlapping parts of the adjacent first pads can be increased, and the phenomenon that foreign matters are adhered between the overlapping parts of the adjacent first pads to cause short circuit is avoided.
According to any of the preceding embodiments of the first aspect of the present application, the first pad comprises two bridging portions, the two bridging portions being electrically connected by the extension portion.
Therefore, the first bonding pad comprises the two lapping parts, so that the lapping area between the first bonding pad and other lapping objects can be increased when the first bonding pad is lapped with other lapping objects (such as bonding pads), and the connection strength between the first bonding pad and other lapping objects is improved.
According to any of the preceding embodiments of the first aspect of the present application, the shape of the orthographic projection of the joint on the substrate of the display panel comprises a circle, an ellipse or a polygon.
According to any of the preceding embodiments of the first aspect of the present application, the shape of the orthographic projection of the bridge on the substrate of the display panel comprises a triangle.
In this way, since the shape of the orthographic projection of the lap joint part on the substrate of the display panel is a stable triangle, the lap joint part has good stability and is not easy to deform.
According to any one of the embodiments of the first aspect of the present application, in an orthographic projection of any two adjacent first pads, a lap portion of a first one of the first pads and a lap portion of a second one of the first pads, two adjacent sides are not parallel.
Therefore, because the adjacent first side and the second side in the lapping parts of the two adjacent first bonding pads are not parallel, only one point on the first side is closest to the second side, and other points on the first side are far away from the second side, the probability that foreign matters are bonded between the lapping parts of the adjacent first bonding pads is reduced, the short circuit caused by bonding of the foreign matters between the lapping parts of the adjacent first bonding pads is improved or even eliminated, and the yield of the display panel is improved.
According to any one of the embodiments of the first aspect of the present application, the shape of the orthographic projection of the extension portion on the substrate of the display panel is a bent shape, and the orthographic projections of the extension portions of two adjacent first pads on the substrate of the display panel are parallel to each other.
Therefore, the orthographic projection shape of the extension part on the substrate of the display panel is bent, and the extension parts in the two adjacent first bonding pads are parallel to each other, so that the area of the extension part (namely the first bonding pad) can be increased while a larger interval between the extension parts in the two adjacent first bonding pads is ensured. Therefore, when the first bonding pad is lapped with other lapping objects (such as bonding pads), the lapping area between the first bonding pad and the other lapping objects can be increased, and the connection strength between the first bonding pad and the other lapping objects can be further improved.
According to any one of the embodiments of the first aspect of the present application, the shape of the orthographic projection of the extension portion on the substrate of the display panel includes a zigzag shape or a wave shape, and the orthographic projections of the extension portions in two adjacent first pads on the substrate of the display panel are parallel to each other.
In this way, since the shape of the orthographic projection of the extension part on the substrate of the display panel is zigzag or wavy, and the extension parts in two adjacent first bonding pads are parallel to each other, the area of the extension part (i.e. the first bonding pad) can be increased while ensuring a larger interval between the extension parts in two adjacent first bonding pads. Therefore, when the first bonding pad is lapped with other lapping objects (such as bonding pads), the lapping area between the first bonding pad and the other lapping objects can be increased, and the connection strength between the first bonding pad and the other lapping objects can be further improved.
According to any one of the preceding embodiments of the first aspect of the present application, a pitch of the extensions in the two adjacent first pads in the second direction is greater than 100 micrometers.
Therefore, the width of the partial area (namely the extension part) in the first bonding pad is reduced, so that the distance between the extension parts in two adjacent first bonding pads is increased, for example, the distance between the extension parts in two adjacent first bonding pads reaches more than 100 micrometers, the short circuit caused by the adhesion of foreign matters between the extension parts of the adjacent first bonding pads is improved and even eliminated, and the yield of the display panel is improved.
According to any one of the previous embodiments of the first aspect of the present application, the display panel includes data lines, switching signal control lines, and transistors; the grid electrode of the transistor is electrically connected with the switch signal control line, the first pole of the transistor is electrically connected with the data line, and the second pole of the transistor is electrically connected with the first bonding pad.
In a second aspect, the present application provides a display device, and the display device includes the display panel provided in any one of the first aspect.
Display panel and display device of this application embodiment, display panel include display area and non-display area, and non-display area is provided with a plurality of first pads, and first pad extends along first direction, and first pad includes: the extension part is longer than the lapping part along the length of the first direction, the extension part is shorter than the maximum width of the lapping part along the second direction, and the first direction is perpendicular to the second direction. According to the embodiment of the application, the width of the partial area (namely the extension part) in the first bonding pad is reduced, so that the distance between the extension parts in two adjacent first bonding pads is increased, the short circuit caused by bonding of foreign matters between the adjacent first bonding pads is improved or even eliminated, and the yield of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel in the related art;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover the modifications and variations of this application provided they come within the scope of the corresponding claims (the claimed subject matter) and their equivalents. It should be noted that the embodiments provided in the embodiments of the present application can be combined with each other without contradiction.
Before explaining the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically explains the problems existing in the prior art:
as described above, the inventors of the present application have found that, in the related art, there is a problem that a short circuit is easily generated between pads of a display panel, and thus a display failure of the display panel is caused.
In order to solve the above technical problems, the inventors of the present application first conducted research and analysis on the root causes leading to the above technical problems, and the specific research and analysis processes are as follows:
as shown in fig. 1, the display panel 10' may include a display area AA displaying an image and a non-display area NA disposed at least one side of the display area AA. The non-display area NA may be provided with different types of pads 101'. The inventor of the present application has found that as the demand for a narrow bezel increases, the bezel design of the current display panel is narrower, and accordingly, the distance between the pads 101' is also smaller. Since the distance between the bonding pads 101 'is small, once the foreign matter w (such as silver paste used in the lapping process and metal particles generated in the cutting process) falls or adheres to the surface of the bonding pad 101', the foreign matter w is easily lapped between different bonding pads 101 ', and short circuit is caused between the bonding pads 101', so that the display of the display panel is poor.
In view of the above research of the inventor, the embodiments of the present application provide a display panel and a display device, which can solve the technical problem existing in the related art that a short circuit is easy to occur between pads of the display panel, resulting in poor display of the display panel.
The technical idea of the embodiment of the application is as follows: by changing the shape of the first bonding pad in the display panel, for example, by reducing the width of a partial region (i.e., an extension portion) in the first bonding pad, the distance between the extension portions in two adjacent first bonding pads is increased, and thus, the short circuit caused by the adhesion of foreign matters between the extension portions of the adjacent first bonding pads is improved or even eliminated, and the yield of the display panel is improved.
The following first describes a display panel provided in an embodiment of the present application.
As shown in fig. 2, the display panel 20 provided in the embodiment of the present application includes a display area AA and a non-display area NA. The non-display area NA is provided with a plurality of first pads 201, and the first pads 201 extend in a first direction (Y direction shown in fig. 2). For example, the first pads 201 may include pads, abbreviated as CT test pads, on the display panel 20 that overlap with probes of the lighting device during a dot screen test (abbreviated as CT test). The first pads 201 may further include pads, abbreviated as AT test pads, on the display panel 20, which are connected to probes of the lighting device during an array substrate test (abbreviated as AT test). The first bonding pads 201 may further include bonding pads, which are bonded to the flexible circuit board FPC or the driver IC, on the display panel 20, which are referred to as bonding pads for short. That is, the first pad 201 may be any pad on the display panel 20, which is not limited in the embodiment of the present application.
Note that, as a difference from the shape of the pad in the related art shown in fig. 1, the first pad 201 in the embodiment of the present application includes at least one lap 201a and an extension 201b connected to the at least one lap 201 a. When the display panel 20 is tested, the overlapping portion 201a may overlap with a probe of the lighting device, for example. Wherein a length L1 of the extension portion 201b in the first direction (Y direction shown in fig. 2) is greater than a length L2 of the lap portion 201a in the first direction, and a width W1 of the extension portion 201b in the second direction (X direction shown in fig. 2) is less than a maximum width W2 of the lap portion 201a in the second direction, the first direction being perpendicular to the second direction. That is, the width of the region of the longer portion (i.e., the extension portion 201b) in the first pad 201 is reduced compared to the width of the lap portion 201a in the first pad 201, thereby increasing the interval between the regions of the longer portions in the adjacent first pads 201.
As shown in fig. 1, in the related art, it is assumed that a pitch between two adjacent pads 101' in fig. 1 is 100 micrometers and a diameter of the foreign substance w is 120 micrometers. Since the distance between the two pads 101 'is smaller than the diameter of the foreign material w, the foreign material w will overlap (electrically connect) with the two pads 101' at the same time as long as the foreign material w is located between the two pads 101 ', causing a short circuit between the two pads 101'. As shown in fig. 2, in the embodiment of the present application, since the width of the extension portion 201b in the first pad 201 is reduced, the spacing between the extension portions 201b in two adjacent first pads is increased, for example, the spacing between the extension portions 201b in two adjacent first pads is increased to 200 μm. Still taking the diameter of the foreign matter w as an example of 120 microns, since the distance between the extension portions 201b in two adjacent first pads is greater than the diameter of the foreign matter w, when the foreign matter w is located between the extension portions 201b in two first pads, the foreign matter w cannot be overlapped with the extension portions 201b in two first pads at the same time, so that short circuit caused by the foreign matter adhered between the extension portions 201b of the adjacent first pads is improved or even eliminated, and the yield of the display panel is improved.
Therefore, as the width of the partial region (i.e. the extension portion 201b) in the first pad is reduced, the distance between the extension portions 201b in two adjacent first pads is increased, the probability that the foreign matter w is simultaneously overlapped between the extension portions 201b of the adjacent first pads is reduced, and further, the short circuit caused by the foreign matter adhered between the extension portions of the adjacent first pads is improved or even eliminated, and the yield of the display panel is improved.
As shown in fig. 3, the first pad 201 may optionally include one lap 201a according to some embodiments of the present application. In two adjacent first pads 201, the bridging portion 201a of a first pad 201 (for example, the first pad from the left side in fig. 3) is located on the side of the extension portion 201b of the first pad 201 close to the display area AA, and the bridging portion 201a of a second first pad 201 (for example, the second first pad from the left side in fig. 3) is located on the side of the extension portion 201b of the second first pad 201 far from the display area AA. For example, in some specific examples, N first pads 201 are sequentially arranged on the display panel 20, wherein the overlapping portions 201a of the first pads 201 with odd arrangement numbers are located on the side of the extension portions 201b close to the display area AA, the overlapping portions 201a of the first pads 201 with even arrangement numbers are located on the side of the extension portions 201b far from the display area AA, and N is an integer greater than 1. It is understood that, in other specific examples, the bonding parts 201a of the first pads 201 with odd serial numbers may be arranged on the side of the extension parts 201b far from the display area AA, and the bonding parts 201a of the first pads 201 with even serial numbers may be arranged on the side of the extension parts 201b near the display area AA.
Therefore, compared with the mode that the lapping parts in two adjacent first bonding pads are arranged on the same side, for example, because the lapping part in the first bonding pad in the adjacent first bonding pads is positioned on the side, close to the display area, of the extension part in the first bonding pad, and the lapping part in the second first bonding pad is positioned on the side, far away from the display area, of the extension part in the second first bonding pad, namely the lapping parts of the adjacent first bonding pads are arranged in a staggered mode, on one hand, the space of the display panel can be more fully utilized, a larger number of first bonding pads are arranged in the limited space of the display panel, on the other hand, the distance between the lapping parts of the adjacent first bonding pads can be increased, and short circuit caused by bonding of foreign matters between the lapping parts of the adjacent first bonding pads is improved or even eliminated.
With continued reference to fig. 3, according to some embodiments of the present application, optionally, the maximum width W2 of the overlapping portion 201a along the second direction (X direction shown in fig. 3) may be greater than the width of the pad (e.g., the pad 101' shown in fig. 1) in the related art, so as to increase the area of the region of the first pad 201 where the probe or other pad can overlap, thereby facilitating the overlapping of the first pad 201 with the probe or other pad.
As shown in fig. 4, according to other embodiments of the present application, optionally, the first pad 201 may further include two bridging portions 201a, and the two bridging portions 201a are electrically connected by an extending portion 201 b. Specifically, in each first pad 201, a bridging portion 201a is provided on both the side of the extension portion 201b close to the display area AA and the side far from the display area AA, and the two bridging portions 201a are electrically connected by the extension portion 201 b.
Therefore, the first bonding pad comprises the two lapping parts, so that the lapping area between the first bonding pad and other lapping objects can be increased when the first bonding pad is lapped with other lapping objects (such as bonding pads), and the connection strength between the first bonding pad and other lapping objects is improved. For example, when the first pad 201 is connected to a pad on the flexible printed circuit FPC, since the first pad 201 has two connecting portions 201a, the connecting area between the first pad 201 and the pad on the FPC is doubled compared to the case where only one connecting portion 201a is provided, thereby improving the connection strength between the first pad 201 and the pad on the FPC.
According to some embodiments of the present application, optionally, the shape of the orthographic projection of the lapping section 201a on the substrate of the display panel 20 includes a circle, an ellipse or a polygon. The polygon may be an M-polygon, where M is an integer greater than or equal to 3. For example, the polygon may be a square, a rectangle, a parallelogram, a rhombus, a pentagon or a hexagon, which is not limited in the embodiments of the present application.
With continued reference to fig. 4, in some specific embodiments, optionally, the shape of the orthographic projection of the overlapping portion 201a on the substrate of the display panel 20 may be specifically triangular. The triangle may particularly comprise, for example, an isosceles triangle or an equilateral triangle.
It is easily understood that the triangular shape has good stability, and has the advantages of stability, firmness and pressure resistance. Therefore, since the shape of the orthographic projection of the lap joint part on the substrate of the display panel is a stable triangle, the lap joint part has good stability and is not easy to deform.
With continued reference to fig. 4, according to some embodiments of the present application, optionally, any adjacent two first pads 201, the lap 201a of the first pad 201 and the lap 201a of the second first pad 201 are not parallel to each other in an orthographic projection of the substrate of the display panel. For example, the orthographic first side b1 of the lap 201a in the first pad 201 is adjacent to the orthographic second side b2 of the lap 201a in the second first pad 201, and the first side b1 and the second side b2 may not be parallel.
In this way, since the adjacent first side and the second side in the overlapping part of the two adjacent first pads are not parallel, only one point (e.g., point d1 in fig. 4) on the first side is closest to the second side, and the other points (e.g., point d2 in fig. 4) on the first side are all farther from the second side, thereby reducing the probability of foreign matters being adhered between the overlapping parts of the adjacent first pads, improving or even eliminating the short circuit caused by the adhesion of the foreign matters between the overlapping parts of the adjacent first pads, and improving the yield of the display panel.
With continued reference to fig. 4, according to some embodiments of the present application, optionally, the shape of the orthographic projection of the extension 201b on the substrate of the display panel 20 may include a rectangle, and the orthographic projections of the extensions 201b in two adjacent first pads 201 on the substrate of the display panel 20 are parallel to each other.
In this way, orthographic projections of the extending parts in the two adjacent first bonding pads on the substrate of the display panel are parallel to each other, so that equal intervals between the extending parts in any two adjacent first bonding pads can be ensured. Moreover, since the width of the extension portion 201b is small, a large space can be secured between the extension portions in any two adjacent first pads.
Unlike the embodiment shown in fig. 4, according to other embodiments of the present application, optionally, the shape of the orthographic projection of the extension portion 201b on the substrate of the display panel 20 may be a bent shape, and the orthographic projections of the extension portions 201b in two adjacent first pads 201 on the substrate of the display panel 20 are parallel to each other. Therefore, the orthographic projection shape of the extension part on the substrate of the display panel is bent, and the extension parts in the two adjacent first bonding pads are parallel to each other, so that the area of the extension part (namely the first bonding pad) can be increased while a larger interval between the extension parts in the two adjacent first bonding pads is ensured. Therefore, when the first bonding pad is lapped with other lapping objects (such as bonding pads), the lapping area between the first bonding pad and the other lapping objects can be increased, and the connection strength between the first bonding pad and the other lapping objects can be further improved.
As shown in fig. 5, in some specific embodiments, the shape of the orthographic projection of the extension 201b on the substrate of the display panel 20 may include a zigzag shape, and the orthographic projections of the extensions 201b in two adjacent first pads 201 on the substrate of the display panel 20 are parallel to each other. The so-called zigzag, that is, the extension 201b is mainly composed of a plurality of line segments, which are connected in sequence, and adjacent line segments have an included angle therebetween.
In this way, since the shape of the orthographic projection of the extension part on the substrate of the display panel is zigzag, and the extension parts in two adjacent first bonding pads are parallel to each other, the area of the extension part (i.e. the first bonding pad) can be increased while ensuring a larger interval between the extension parts in two adjacent first bonding pads. Therefore, when the first bonding pad is lapped with other lapping objects (such as bonding pads), the lapping area between the first bonding pad and the other lapping objects can be increased, and the connection strength between the first bonding pad and the other lapping objects can be further improved.
As shown in fig. 6, in other specific embodiments, optionally, the shape of the orthographic projection of the extension 201b on the substrate of the display panel 20 may include a wave shape, and the orthographic projections of the extensions 201b in two adjacent first pads 201 on the substrate of the display panel 20 are parallel to each other. So-called wavy shape, i.e., the extension 201b is mainly composed of a plurality of continuous curves.
In this way, since the shape of the orthographic projection of the extension part on the substrate of the display panel is wave-shaped, and the extension parts in two adjacent first bonding pads are parallel to each other, the area of the extension part (i.e. the first bonding pad) can be increased while ensuring a larger interval between the extension parts in two adjacent first bonding pads. Therefore, when the first bonding pad is lapped with other lapping objects (such as bonding pads), the lapping area between the first bonding pad and the other lapping objects can be increased, and the connection strength between the first bonding pad and the other lapping objects can be further improved.
With continued reference to fig. 6, according to some embodiments of the present application, optionally, a pitch of the extending portions 201b in the two adjacent first pads 201 in the second direction (X direction shown in fig. 6) is greater than 100 micrometers. In a specific example, the distance between the extending portions 201b in the adjacent two first pads 201 in the second direction is 300 μm, for example.
Therefore, the width of the partial region (i.e. the extension portion) in the first bonding pad is reduced, so that the distance between the extension portions in two adjacent first bonding pads is increased, for example, the distance between the extension portions in two adjacent first bonding pads reaches more than 100 micrometers, and therefore, the short circuit caused by the adhesion of foreign matters between the extension portions of the adjacent first bonding pads is improved or even eliminated, and the yield of the display panel is improved.
As described above, the first pad 201 in the embodiment of the present application may include a CT test pad. For ease of understanding, the first pad 201 is exemplified as the CT test pad. As shown in fig. 7, the display panel 20 may include a Data line Data, a switching signal control line S1, and a transistor T. The gate of the transistor T is electrically connected to the switching signal control line S1, the first pole of the transistor T is electrically connected to the Data line Data, and the second pole of the transistor T is electrically connected to the first pad 201. Depending on the signal of the gate of each transistor and the type thereof, the first electrode may be a source and the second electrode may be a drain, or the first electrode may be a drain and the second electrode may be a source, which is not distinguished herein. The lap 201a in the first pad 201 may lap with a probe of a lighting machine, and the Data line Data may be electrically connected with the sub-pixel in the display panel 20. Under the control of the on level output by the switching signal control line S1, the transistor T is turned on, and the detection signal emitted by the lighting machine is transmitted to the sub-pixel through the probe, the first pad 201, the transistor T, and the Data line Data in sequence, thereby completing the CT test.
Based on the display panel provided by the above embodiment, correspondingly, the application further provides a display device. As shown in fig. 8, the display device 1000 may include a device body 10 and the display panel 20 in the above embodiments, and the display panel 20 is covered on the device body 10. The apparatus body 10 may be provided with various devices, such as a sensing device, a processing device, and the like, but is not limited thereto. The display device 1000 may be a device having a display function, such as a mobile phone, a computer, a tablet computer, a digital camera, a television, and electronic paper, and is not limited herein.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts between the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For the display panel embodiment and the display device embodiment, the related matters can be referred to the description parts of the pixel driving circuit embodiment and the array substrate embodiment. The present application is not limited to the particular structures described above and shown in the figures. Those skilled in the art may make various changes, modifications and additions after comprehending the spirit of the present application. Also, a detailed description of known techniques is omitted herein for the sake of brevity.
It will be appreciated by persons skilled in the art that the above embodiments are illustrative and not restrictive. Different features which are present in different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the drawings, the specification, and the claims. In the claims, the term "comprising" does not exclude other structures; the quantities relate to "a" and "an" but do not exclude a plurality; the terms "first" and "second" are used to denote a name and not to denote any particular order. Any reference signs in the claims shall not be construed as limiting the scope. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Claims (10)
1. A display panel, characterized in that the display panel comprises a display area and a non-display area, the non-display area is provided with a plurality of first pads, the first pads extend along a first direction, the first pads comprise:
the extension part is longer than the lapping part in the length of the first direction, the extension part is shorter than the lapping part in the width of the second direction, and the first direction is perpendicular to the second direction.
2. The display panel according to claim 1, wherein the first pad includes one of the lap portions;
in two adjacent first bonding pads, the bridging part in the first bonding pad is positioned on one side, close to the display area, of the extending part in the first bonding pad, and the bridging part in the second first bonding pad is positioned on one side, far away from the display area, of the extending part in the second first bonding pad.
3. The display panel according to claim 1, wherein the first pad includes two of the bridging portions, and the two bridging portions are electrically connected by the extension portion.
4. The display panel according to claim 1, wherein a shape of an orthographic projection of the joint on a substrate of the display panel includes a circle, an ellipse, or a polygon;
preferably, the shape of an orthographic projection of the bridge on the substrate of the display panel comprises a triangle.
5. The display panel according to claim 4, wherein any adjacent two of the first pads, the lap of a first one of the first pads and the lap of a second one of the first pads are not parallel to each other in an orthographic projection of a substrate of the display panel.
6. The display panel according to claim 1, wherein an orthographic projection of the extension portion on the substrate of the display panel is bent, and orthographic projections of the extension portions of two adjacent first pads on the substrate of the display panel are parallel to each other.
7. The display panel of claim 6, wherein the shape of the orthographic projection of the extension on the substrate of the display panel comprises a zigzag or a wave.
8. The display panel according to claim 1, wherein a pitch of the extensions in two adjacent first pads in the second direction is greater than 100 μm.
9. The display panel according to claim 1, wherein the display panel comprises a data line, a switching signal control line, and a transistor;
the gate of the transistor is electrically connected to the switching signal control line, the first pole of the transistor is electrically connected to the data line, and the second pole of the transistor is electrically connected to the first pad.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN202111370285.4A CN114093262B (en) | 2021-11-18 | 2021-11-18 | Display panel and display device |
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| CN202111370285.4A CN114093262B (en) | 2021-11-18 | 2021-11-18 | Display panel and display device |
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| JPH11295755A (en) * | 1998-04-09 | 1999-10-29 | Seiko Epson Corp | Method for inspecting wiring board and manufacture of liquid crystal device |
| JP2002313850A (en) * | 2001-04-12 | 2002-10-25 | Sanyo Electric Co Ltd | Tape carrier package and its manufacturing method |
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