CN118038757A - Display panel and display device - Google Patents

Abstract

The application provides a display panel and a display device, the display panel includes: the target wiring area, wiring inflection point set and a plurality of signal lines, wiring inflection point set includes at least: a first set of routing inflection points and a second set of routing inflection points; a first wiring inflection point set for dividing a target wiring region into a first wiring region and a second wiring region, the first wiring region having a horizontal width greater than a horizontal width of the second wiring region; the plurality of signal lines respectively penetrate through the first wiring area and the second wiring area; the interval between two adjacent signal lines in the plurality of signal lines in the first wiring region is larger than the interval between two adjacent signal lines in the plurality of signal lines in the second wiring region; the second set of routing inflection points is distributed over the plurality of signal lines in the second routing region. Therefore, the application reduces the horizontal width required by the wiring arrangement by using the inflection point to perform the wiring arrangement of the signal lines, and meets the horizontal wiring requirement of the display panel.

Description

Display panel and display device

Technical Field

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

Background

The width of the bending area of the conventional display panel is relatively wide, and the distance from the terminal of the touch screen to the chemical vapor deposition (Chemical Vapor Deposition, CVD) is not limited, so that the conventional display panel adopts a linear pull line mode to perform display panel wiring.

Currently, the wiring space in the X-axis direction of the bending region of the display panel is gradually compressed, and thus, a wiring method of the display panel is needed.

Disclosure of Invention

In view of the above, the present application provides a display panel and a display device, which improve the efficiency of using parameters.

In order to solve the problems, the technical scheme provided by the application is as follows:

In a first aspect, the present application provides a display panel, comprising: a target wiring region, a wiring inflection point set, and a plurality of signal lines;

The set of routing inflection points includes at least: a first set of routing inflection points and a second set of routing inflection points;

The first wiring inflection point set is used for dividing the target wiring area into a first wiring area and a second wiring area, and the horizontal width of the first wiring area is larger than that of the second wiring area; the plurality of signal lines penetrate through the first wiring region and the second wiring region respectively;

The interval between two adjacent signal lines in the plurality of signal lines in the first wiring region is larger than the interval between two adjacent signal lines in the plurality of signal lines in the second wiring region;

the second set of routing inflection points is distributed over a plurality of signal lines in the second routing region. In one possible implementation, the plurality of signal lines of the second wiring region are arranged in PVEE electrode regions in the second wiring region;

Or alternatively

The plurality of signal lines of the second wiring region are arranged in the PVDD electrode region in the second wiring region.

In one possible implementation manner, each signal line of the plurality of signal lines is respectively connected to a terminal corresponding to each signal line

In one possible implementation, the first set of routing inflection points includes: a first subset of the turning points,

The first inflection points in the first subset of inflection points are on the same horizontal line.

In one possible implementation, the first wiring region includes: and the distance between the boundary line of the packaging area and the straight line where the plurality of first inflection points are positioned in the direction vertical to the display panel is not smaller than a preset first distance threshold value.

In one possible implementation, the second wiring region includes: a terminal boundary line;

The distance between the boundary line of the packaging area and the terminal boundary line in the direction perpendicular to the display panel is not smaller than a preset second distance threshold value, and the preset first distance threshold value is smaller than the preset second distance threshold value.

In one possible implementation, the second routing region further includes a third set of routing inflection points; the third set of wiring inflection points is located between the second set of wiring inflection points and the terminal boundary line; the signal line interval of the plurality of signal lines on the third wiring turning point set is smaller than the signal line interval of the plurality of signal lines on the second wiring turning point set

In one possible implementation, the second set of routing inflection points includes: a second subset of turning points and a third subset of turning points,

And an included angle formed by the straight line where the plurality of second inflection points in the second inflection point subset are located and the straight line where the plurality of third inflection points in the third inflection point subset are located is larger than 90 degrees.

In one possible implementation, the second number of inflection points in the second subset of inflection points is greater than the third number of inflection points in the third subset of inflection points.

In a possible implementation manner, a display device includes the display panel of the first aspect.

From this, the application has the following beneficial effects:

The application provides a display panel, which comprises: a target wiring region, a wiring inflection point set, and a plurality of signal lines; the set of routing inflection points includes at least: a first set of routing inflection points and a second set of routing inflection points; the first wiring inflection point set is used for dividing the target wiring area into a first wiring area and a second wiring area, and the horizontal width of the first wiring area is larger than that of the second wiring area; the plurality of signal lines penetrate through the first wiring region and the second wiring region respectively; the interval between two adjacent signal lines in the plurality of signal lines in the first wiring region is larger than the interval between two adjacent signal lines in the plurality of signal lines in the second wiring region; the second set of routing inflection points is distributed over a plurality of signal lines in the second routing region. Thus, the horizontal wiring line arrangement method and the horizontal wiring line arrangement device can reduce the horizontal width required by wiring by utilizing the inflection point, and meet the horizontal wiring requirement of the display panel.

Drawings

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

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application;

Fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present application;

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

fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present application;

Fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.

In the following detailed description of the embodiments of the present application, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration only, and in which is shown by way of illustration only, and in which the scope of the application is not limited for ease of illustration. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

In order to facilitate understanding of the technical solution provided by the present application, the following description will first explain the background art related to the present application.

The width of the bending area of the conventional display panel is relatively wide, and the distance from the terminal of the touch screen to the chemical vapor deposition (Chemical Vapor Deposition, CVD) is not limited, so that the conventional display panel adopts a linear pull line mode to perform display panel wiring.

Currently, the wiring space in the X-axis direction of the bending region of the display panel for wearing items and the like is gradually compressed, and therefore, a wiring method of the display panel is needed.

For the existing customer requirements, the X direction of the bending region is gradually compressed, that is, the width of the X direction of the routing of the bending region is reduced in the current customer requirements. Especially the periphery of the round product, the width of the inflection region X needs to be compressed further, so that pitch of the inflection region trace is also compressed gradually. And TP (Touch Panel) places metal residues and broken wires at a position crossing a bank (first retaining wall of the flexible package), and TP trace (Touch PANEL TRACE, touch Panel signal trace) is larger than the trace (cycle period) of the bending region. That is, based on the current technical means, trace is smaller than span pitch in the routing pitch due to the limited space in the X direction of the bending region. For reasons that would result in Bending trace mismatch with the bank trace pitch.

Accordingly, in view of the above problems, the present application provides a display panel and a display device, the display panel including: a target wiring region, a wiring inflection point set, and a plurality of signal lines; the set of routing inflection points includes at least: a first set of routing inflection points and a second set of routing inflection points; the first wiring inflection point set is used for dividing the target wiring area into a first wiring area and a second wiring area, and the horizontal width of the first wiring area is larger than that of the second wiring area; the plurality of signal lines penetrate through the first wiring region and the second wiring region respectively; the interval between two adjacent signal lines in the plurality of signal lines in the first wiring region is larger than the interval between two adjacent signal lines in the plurality of signal lines in the second wiring region; the second set of routing inflection points is distributed over a plurality of signal lines in the second routing region. Thus, the application reduces the horizontal width required by the wiring arrangement of the signal lines by using the inflection points to perform the wiring arrangement of the signal lines, and meets the horizontal wiring requirement of the display panel.

For a better understanding of the technical solutions and technical effects of the present application, specific embodiments will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the application.

The present application provides a display panel, comprising: a target wiring region, a set of wiring inflection points, and a plurality of signal lines.

The set of routing inflection points includes at least: first and second sets of wiring inflection points, as shown in fig. 1, including first and second sets of wiring inflection points 101 and 102 shown in fig. 1.

The first wiring inflection point set 101 is configured to divide a target wiring area into a first wiring area 103 and a second wiring area 104, where a horizontal width of the first wiring area is greater than a horizontal width of the second wiring area, and a plurality of signal lines respectively penetrate through the first wiring area 103 and the second wiring area 104. It is understood that the plurality of signal lines have corresponding inflection points in the first inflection point set, respectively, and each signal line in the plurality of signals generates a bend after passing through its corresponding inflection point.

The interval between two adjacent signal lines among the plurality of signal lines located in the first wiring region is larger than the interval between two adjacent signal lines among the plurality of signal lines located in the second wiring region, for example: as shown in fig. 1, the interval a between any two signal lines in the first wiring region is larger than the interval B between any two signal lines in the second wiring region.

The second set of routing inflection points 102 are distributed over the plurality of signal lines in the second routing region. It is understood that the plurality of signal lines have corresponding inflection points in the second inflection point set, respectively, and each signal line in the plurality of signals generates a bend after passing through its corresponding inflection point.

Thus, the application can be used for the situation of insufficient space in the X direction, namely, the situation of insufficient space for arranging the wires in the horizontal direction. When the space in the X direction is insufficient, if the wiring arrangement is required in the X direction, the wiring period is limited by the space in the X direction, that is, the wiring period is smaller due to the insufficient space in the X direction. At the moment, the technical scheme of the application is that wiring inflection points are arranged, and the wiring period of the signal wires passing through the wiring inflection points is shortened by carrying out sectional design on the vertical direction (Y direction) of the wiring based on the wiring inflection points, so that the space in the X direction can be compressed on the basis of the original space in the X direction, and the reduced space in the horizontal direction is gradually reached; that is, in the case of insufficient space in the X direction, signal line arrangement is performed based on the setting of the wiring inflection point, thereby realizing personalized wiring of the display panel, and improving customer satisfaction. In one possible implementation, please refer to fig. 2, fig. 2 is a schematic diagram of another display panel structure according to an embodiment of the present application.

The plurality of signal lines of the second wiring region are arranged in PVEE electrode regions in the second wiring region, for example, PVEE-a portion of fig. 2, a relatively small fan-out portion PVEE (specifically PVEE-a portion of fig. 2), PVEE-b portion of fig. 2, and a relatively large fan-out portion PVEE (specifically PVEE-b portion of fig. 2), and it should be noted that the amount of this fan-out of PVEE may be adjusted according to the boundaries of the signal lines.

Or in another possible implementation, the plurality of signal lines of the second wiring region may be arranged in the PVDD electrode region in the second wiring region. The PVDD electrode region may have a relative position to PVEE in the X direction (horizontal direction).

When the display and the TP are performed simultaneously, that is, when the real-time interaction between the touch screen (TP) and the display content is realized, crosstalk occurs between signals of the TP and the TFT, and a signal of a fixed point is needed to separate the signals to prevent mutual influence. If the signal lines are not arranged on the PVDD electrode region or the PVEE electrode region, signals of the display panel can have crosstalk with signals of the TFTs, and display and touch control can be affected. Therefore, in this embodiment, the signal lines are arranged on the PVDD electrode area or PVEE electrode area, and the PVEE electrode area or the PVDD electrode area is used for interference shielding, so that crosstalk between TP signals and TFT side signals is avoided, and influence of signal crosstalk on display and touch is reduced.

In one possible implementation, please refer to fig. 3, fig. 3 is a schematic diagram of another display panel structure according to an embodiment of the present application. Each of the plurality of signal lines is connected to a corresponding terminal 301 of each signal line, respectively, as shown in fig. 3. The touch screen signal wire with the terminal being a bending area is replaced by a through hole of the TFT wiring, and the terminal can enable the distance, curvature, direction and shape of the touch screen signal wire with the bending area to be consistent, so that stress is consistent. That is, in the display screen, the terminals are vias connecting the touch screen signal lines and TFT traces for signal transmission and connection. The touch screen signal lines need to be transitioned to the terminals when changing from the inflection region to the vias of the TFT traces. Through the terminal, the stress of the touch screen signal wire and the TFT wiring at the connecting part is consistent, the problems of poor signal transmission or connector damage and the like caused by uneven stress are avoided, and the stability and the reliability of signal transmission are ensured. And the terminal can also provide a certain buffer effect, so that the influence of external stress and vibration on signal transmission is reduced, and the stability and durability of the display screen are improved.

In one possible implementation, please refer to fig. 4, fig. 4 is a schematic diagram of another display panel structure according to an embodiment of the present application.

As shown in fig. 4, the first set of routing inflection points 401 may include: the first subset of inflection points 402, the first plurality of inflection points in the first subset of inflection points 402 are on the same horizontal line. That is, a plurality of inflection points are included in the first inflection point set 402 and are all on the same horizontal line, so that the same line spacing between signal lines and the same pitch between inflection points is ensured since the inflection points are all on the same horizontal line. It should be noted that the plurality of inflection points included in the first inflection point set 402 may not be on the same horizontal line, and fig. 4 is only one of possible arrangements of the plurality of inflection points included in the first inflection point set 402.

In one possible implementation, please refer to fig. 5, fig. 5 is a schematic diagram of another display panel structure according to an embodiment of the present application.

The first wiring region as shown in fig. 5 includes: the distance between the boundary line 501 of the packaging area and the straight line 502 where the plurality of first inflection points in the first inflection point subset are located in the direction perpendicular to the display panel is not less than a preset first distance threshold 503. It should be noted that, the preset first distance threshold 503 is mainly related to the process, and if the preset first distance threshold 503 is 0, a problem of shorting the signal line due to the residual metal on the upper layer may occur, so the preset first distance threshold 503 needs to satisfy the overlapped value of the overlay and the loss of the process.

It should be noted that, each of the plurality of signal lines corresponds to a first inflection point, and each of the plurality of signal lines bends after passing through the corresponding first inflection point, and if the plurality of first inflection points are disposed too close to the boundary line 501 of the package region, after each of the signal lines bends after passing through the corresponding inflection point, the signal lines will be shorted or opened due to the protrusion around the boundary line of the package region. Based on this, by setting the preset first distance threshold 503, it is possible to avoid that the plurality of first inflection points in the set first inflection point subset are too close to the boundary line of the package region, and to avoid that the signal line is broken or shorted due to the package region being too raised to the greatest extent.

In one possible implementation, please refer to fig. 6, fig. 6 is a schematic diagram of another display panel structure according to an embodiment of the present application.

The display panel structure as shown in fig. 6 includes: the boundary line 601 of the package area, a straight line 602 where a plurality of first inflection points in the first subset of inflection points are located, a preset first distance threshold 603, a first routing area 604, a second routing area 605, a preset second distance threshold 606, and a terminal boundary line 607.

As can be seen from the above description with respect to the embodiment of fig. 5, the first wiring region 604 includes: the distance between the boundary line 601 of the packaging area of the display panel and the straight line 602 where the plurality of first inflection points in the first inflection point subset are located in the direction perpendicular to the display panel is not less than a preset first distance threshold 603.

The second wiring region 605 includes: terminal boundary line 607.

The distance between the boundary line 601 of the encapsulation area and the terminal boundary line 607 in the direction perpendicular to the display panel is not less than a preset second distance threshold 606, wherein the preset first distance threshold 603 is less than the preset second distance threshold 606.

Note that, the sum of the preset first distance threshold 603 and the preset second distance threshold 606 is the distance between the boundary line 601 of the encapsulation area and the terminal boundary line 607. Since the preset first distance threshold 603 is smaller than the preset second distance threshold 606, a plurality of second inflection points can be arranged in the second wiring area 605, and the second inflection points are utilized to arrange a plurality of signal lines, so that the horizontal direction width required by wiring arrangement of the signal lines is reduced, and the horizontal wiring requirement of the display panel is met.

In one possible implementation, please refer to fig. 7, fig. 7 is a schematic diagram of another display panel structure according to an embodiment of the present application.

The second wiring region further includes a third wiring inflection point set 702 as shown in fig. 7, the third wiring inflection point set 702 being located between the second wiring inflection point set 701 and the terminal boundary line 703, and signal line intervals of the plurality of signal lines on the third wiring inflection point set being smaller than signal line intervals of the plurality of signal lines on the second wiring inflection point set. In this way, the signal lines are arranged by using the wiring inflection points in the third wiring inflection point set, so that the horizontal direction width required by wiring arrangement of the signal lines can be reduced, and the horizontal wiring requirement of the display panel is met.

In one possible implementation, please refer to fig. 8, fig. 8 is a schematic diagram of another display panel structure according to an embodiment of the present application.

The second set of routing inflection points 801 as illustrated in fig. 8 includes: the second turning point subset 802 and the third turning point subset 803, where the straight lines where the second turning points in the second turning point subset are located and the straight lines where the third turning points in the third turning point subset are located form an included angle 804 greater than 90 degrees, if the included angle 804 is smaller than 90 degrees, the routing arrangement of the signal lines according to the turning points will make the space of the vertical defense lines occupied by the routing become larger, that is, if the included angle 804 is smaller than 90 degrees, the space of the Y direction (vertical direction) required by the routing arrangement of the signal lines increases, so that the included angle 804 needs to be set to be greater than 90 degrees, and the space of the vertical direction required by the routing arrangement of the signal lines is reduced.

As shown in fig. 8, the second number of inflection points in the second subset of inflection points 802 may be greater than the third number of inflection points in the third subset of inflection points 803, where the routing area is mostly located on the right side of the display panel. In one possible implementation, if the wiring area is mostly located on the left side of the display panel, the number of second inflection points will be smaller than the number of third inflection points. When the wiring area of the display panel is positioned in the middle of the display panel, the number of the second inflection points is the same as that of the third inflection points, and the second inflection points and the third inflection points are symmetrically distributed. In this embodiment, the number of inflection points may be determined in accordance with the direction of the shift of the wiring area required by the user. The arrangement of the signal lines is performed based on the set inflection points, and the personalized requirements for the wiring regions of the display panel are satisfied while reducing the width in the horizontal direction required for the wiring arrangement of the signal lines.

The signal line arrangement in any of the above embodiments may adjust the line width and the line spacing of the signal line arrangement according to the space size. It should be noted that, if there is a climbing of the signal line, there is a risk of breakage or short circuit of the signal line while there is a bending of the signal line (folding line), the bending position (folding line position) of the signal line is avoided as much as possible. In this way, by setting the signal line position, i.e. the inflection point position, at a place where no climbing is possible, the risk of broken lines or short circuits can be reduced.

The embodiment of the present application further provides a display device 900, referring to fig. 9, which includes a display panel as described in any one of fig. 1 to 8. That is, the display device 900 specifically includes a display panel described in any of the above embodiments. The display device provided by the embodiment of the application can be other display devices with display functions, such as mobile phones, computers, televisions, vehicle-mounted display devices and the like, and the embodiment of the application is not particularly limited. The display device provided by the embodiment of the application has the beneficial effects of the display panel described in any one of the embodiments, and the specific description of the display panel with reference to the embodiment can be referred to, and the embodiments of the application are not repeated here.

For the foregoing embodiments, for simplicity of explanation, the same is shown as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently in accordance with the application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

Finally, it is further noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. 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 application. Thus, the present application 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.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (10)

1. A display panel, the display panel comprising: a target wiring region, a wiring inflection point set, and a plurality of signal lines;

The set of routing inflection points includes at least: a first set of routing inflection points and a second set of routing inflection points;

The first wiring inflection point set is used for dividing the target wiring area into a first wiring area and a second wiring area, and the horizontal width of the first wiring area is larger than that of the second wiring area; the plurality of signal lines penetrate through the first wiring region and the second wiring region respectively;

The interval between two adjacent signal lines in the plurality of signal lines in the first wiring region is larger than the interval between two adjacent signal lines in the plurality of signal lines in the second wiring region;

the second set of routing inflection points is distributed over a plurality of signal lines in the second routing region.

2. The display panel according to claim 1, wherein a plurality of signal lines of the second wiring region are arranged in PVEE electrode regions in the second wiring region;

Or alternatively

The plurality of signal lines of the second wiring region are arranged in the PVDD electrode region in the second wiring region.

3. The display panel according to claim 1, wherein each of the plurality of signal lines is connected to a corresponding terminal of the each signal line.

4. The display panel of claim 1, wherein the first set of routing inflection points comprises: a first subset of the turning points,

The first inflection points in the first subset of inflection points are on the same horizontal line.

5. The display panel of claim 4, wherein the first routing area comprises: and the distance between the boundary line of the packaging area and the straight line where the plurality of first inflection points are positioned in the direction vertical to the display panel is not smaller than a preset first distance threshold value.

6. The display panel of claim 5, wherein the display panel comprises,

The second wiring region includes: a terminal boundary line;

The distance between the boundary line of the packaging area and the terminal boundary line in the direction perpendicular to the display panel is not smaller than a preset second distance threshold value, and the preset first distance threshold value is smaller than the preset second distance threshold value.

7. The display panel of claim 6, further comprising a third set of routing inflection points in the second routing region;

the third set of wiring inflection points is located between the second set of wiring inflection points and the terminal boundary line;

The signal line intervals of the plurality of signal lines on the third wiring turning point set are smaller than the signal line intervals of the plurality of signal lines on the second wiring turning point set.

8. The display panel of claim 1, wherein the second set of routing inflection points comprises: a second subset of turning points and a third subset of turning points,

And an included angle formed by the straight line where the plurality of second inflection points in the second inflection point subset are located and the straight line where the plurality of third inflection points in the third inflection point subset are located is larger than 90 degrees.

9. The display panel of claim 8, wherein a second number of inflection points in the second subset of inflection points is greater than a third number of inflection points in the third subset of inflection points.

10. A display device comprising the display panel of any one of claims 1-9.