CN109542273B

CN109542273B - Display panel and display device

Info

Publication number: CN109542273B
Application number: CN201811473571.1A
Authority: CN
Inventors: 姚绮君; 杜凌霄; 丁洪
Original assignee: Shanghai Tianma Microelectronics Co Ltd
Current assignee: Shanghai Tianma Microelectronics Co Ltd
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2022-04-12
Anticipated expiration: 2038-12-04
Also published as: CN109542273A

Abstract

The embodiment of the invention discloses a display panel and a display device, wherein the display panel comprises: a display functional layer; the touch-control functional layer is located the play plain noodles one side that shows the functional layer, and the touch-control functional layer includes: a plurality of touch electrodes arranged in an array; the touch electrode comprises a plurality of first conducting wires which are electrically connected, and the first conducting wires extend along a first direction and are arranged along a second direction; the first conducting wire comprises a plurality of sub-conducting wires which are sequentially arranged along a first direction, and a first interval is arranged between every two adjacent sub-conducting wires along the first direction; wherein the plurality of first wires form a linear polarization structure; wherein the first direction intersects the second direction. Compared with the prior art, the display panel provided by the embodiment of the invention can reduce the whole thickness of the display panel, and is beneficial to realizing the light and thin design of the display panel and the display device; under the premise, the problem that the graph at the edge outline of the touch electrode is visible can be avoided by setting the first interval, so that the picture display effect of the display panel can be improved.

Description

Display panel and display device

Technical Field

The invention relates to the technical field of display, in particular to a display panel and a display device.

Background

With the continuous development of electronic technology, a display device as one of interactive windows of a user and an electronic device is receiving attention. In the prior art, in order to improve user experience, a display device is usually provided with a touch function. For a display panel or a display device with a touch function, since a touch screen (or referred to as a touch functional layer) is added, the overall thickness of the display panel or the display device is generally thicker, which is not favorable for the light and thin design of the display panel or the display device.

In order to adapt to the trend of light and thin display panel or display device, the touch screen may be disposed inside the display panel or display device. However, in this structure, the polarization structures in the touch screen and the display panel are still separately arranged, the overall structure of the display panel is still thick, and in addition, the screen display effect of the display panel is poor.

Disclosure of Invention

The invention provides a display panel and a display device, which are used for reducing the overall thickness of the display panel and the display device, and are convenient for realizing the light and thin design of the display panel and the display device; meanwhile, the problem that the graph at the edge outline of the touch electrode is visible can be avoided, so that the picture display effect of the display panel can be improved.

In a first aspect, an embodiment of the present invention provides a display panel, including:

a display functional layer;

the touch control functional layer is positioned on one side of the light emitting surface of the display functional layer and comprises: a plurality of touch electrodes arranged in an array;

the touch electrode comprises a plurality of first conducting wires which are electrically connected, and the first conducting wires extend along a first direction and are arranged along a second direction; the first conducting wire comprises a plurality of sub-conducting wires which are sequentially arranged along a first direction, and a first interval is arranged between every two adjacent sub-conducting wires along the first direction; wherein the plurality of first wires form a linear polarization structure;

wherein the first direction intersects the second direction.

In a second aspect, embodiments of the present invention further provide a display device, where the display device includes any one of the display panels provided in the first aspect.

The display panel provided by the embodiment of the invention comprises a display functional layer and a touch functional layer, wherein the touch functional layer is positioned on one side of a light-emitting surface of the display functional layer and comprises a plurality of touch electrodes arranged in an array; the touch electrode comprises a plurality of first conducting wires which are electrically connected, the first conducting wires extend along a first direction and are arranged along a second direction, and the first direction is crossed with the second direction. The touch control functional layer can be reused as a linear polarization structure layer by arranging a plurality of first wires to form the linear polarization structure, so that the number of films in the display panel can be reduced, the overall thickness of the display panel can be reduced, and the light and thin design of the display panel and the display device is facilitated; meanwhile, the first conducting wire comprises a plurality of sub-conducting wires arranged along the first direction, and a first interval is arranged between every two adjacent sub-conducting wires along the first direction, so that the first interval can be arranged inside the touch electrode, namely, breaking points between the first conducting wires are arranged inside the touch electrode, and therefore the breaking points in the touch functional layer can be distributed in the edge contour of the touch electrode and also can be distributed inside the touch electrode, namely, the breaking points in the touch functional layer can be uniformly distributed in the whole touch functional layer, the problem that graphs at the edge contour of the touch electrode are visible can be avoided, and the picture display effect of the display panel can be improved.

Drawings

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

FIG. 2 is a schematic cross-sectional view taken along line A-B of FIG. 1;

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

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

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

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

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

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

fig. 9 is a schematic cross-sectional view illustrating another display panel according to an embodiment of the present invention;

fig. 10 is a schematic cross-sectional view illustrating a display panel according to another embodiment of the present invention;

fig. 11 is a schematic structural diagram of a 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.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a cross section along a-B in fig. 1. Referring to fig. 1 and 2, the display panel 10 includes: a display function layer 101; a touch functional layer 102 located on a light emitting surface side of the display functional layer 101, the touch functional layer 102 including: a plurality of touch electrodes 20 arranged in an array; the touch electrode 20 includes a plurality of first wires 201 electrically connected, and the first wires 201 extend along a first direction X and are arranged along a second direction Y; the first conductive line 201 includes a plurality of sub-conductive lines 2011 sequentially arranged along a first direction X, wherein the extending direction of the sub-conductive lines 2011 is the first direction X. Along the first direction X, a first interval 2012 is disposed between adjacent sub-wires 2011; the first conductive line 201 is divided into a plurality of sub-conductive lines 2011 by a plurality of first spaces 2012. Wherein, the plurality of first wires 201 form a linear polarization structure; wherein the first direction X intersects the second direction Y. Optionally, in this embodiment, the first direction X and the second direction Y are both parallel to the plane of the display panel 10, and the first direction X and the second direction Y are perpendicular to each other.

The display function layer 101 is configured to emit light to display a to-be-displayed picture.

For example, the display function layer 101 may perform screen display based on the display principle of a liquid crystal display panel. In this display type, the display function layer 101 may include a backlight structure and a display structure disposed on a light exit side of the backlight structure, and the display structure may include an array substrate and a color filter substrate that are disposed opposite to each other, and a liquid crystal layer located between the array substrate and the color filter substrate. And the deflection of liquid crystal molecules in the liquid crystal layer is controlled to control whether the light emitted by the backlight structure can pass through the display structure or not, so that the display of the picture is realized.

Alternatively, the display function layer 101 may perform screen display based on the display principle of the light emitting diode display panel. In this display type, the display function layer 101 may include a cathode and an anode and a light emitting function layer disposed between the cathode and the anode, and the light emitting color of the light emitting function layer may be red, green, blue or other colors known to those skilled in the art according to the light emitting material of the light emitting function layer. In this case, a voltage is applied to the cathode and the anode to cause the light-emitting functional layer to emit light, thereby displaying a picture.

Alternatively, the display function layer 101 may also display a picture based on other display principles known to those skilled in the art, which is not limited in the embodiment of the present invention.

It should be noted that the film layer structure of the display function layer 101 may include other film layers known to those skilled in the art besides the above-described structure, and the embodiment of the present invention is not limited thereto.

The touch function layer 102 is used for implementing a touch function, so as to increase an interaction path between a user and the display panel and improve user experience.

For example, the touch function layer 102 may implement a touch function based on a capacitive touch principle, the capacitive touch may generally include a self-capacitive touch and a mutual capacitive touch, and the specific principle of the touch function layer 102 implementing the touch function is described in detail below with reference to the structure of the touch electrode 20.

The first wire 201 in the touch functional layer 102 is used to form the touch electrode 20 and also used to form a linear polarization structure, that is, a wire grid structure is formed by the first wire 201 in the single-layer touch functional layer 102, which can be used to implement a touch function on the one hand and a linear polarization function on the other hand, so that the touch functional layer 102 is reused as the linear polarization functional layer, which can reduce the number of film layers in the display panel 10, thereby facilitating the reduction of the overall thickness of the display panel 10 and the realization of the light and thin design of the display panel 10 and the display device formed by the display panel 10. On this basis, since the overall thickness of the display panel 10 is reduced, when the display panel is applied to a flexible display panel, the bending characteristic of the flexible display panel is improved.

In addition, by disposing the first conductive line 201 to include a plurality of sub-conductive lines 2011 sequentially disposed along the first direction X, and disposing the first space 2012 between two adjacent sub-conductive lines 2011 along the first direction X, the first space 2012 can be disposed within a range surrounded by the outline of the touch electrode 20. Therefore, it can be understood that the plurality of first intervals 2012 included in the same first conductive line 201 extending along the first direction X (i.e., the breaking points of the first conductive line 201) can be distributed within the range surrounded by the contour of the touch electrode 20, so as to facilitate the uniform distribution of the breaking points (including the breaking points formed for distinguishing different touch electrodes 20 and also including the breaking points of the first conductive line 201) in the touch functional layer 102 in the plane where the touch functional layer 102 is located, thereby avoiding the problem that the contour of the touch electrode 20 is visible when the breaking points are only distributed at the contour position of the touch electrode 20, and thus improving the image display effect of the display panel 10.

It should be noted that the above "outline of the touch electrode 20" can be understood as an edge of an area where the first conducting wire 201 constituting the touch electrode 20 is located, where the edge is a boundary between the touch electrode 20 and the touch electrode 20 adjacent to the touch electrode 20 in the first direction X and the second direction Y.

For example, the outline of each touch electrode 20 is shown by a bold solid line in fig. 1, and the outline of each touch electrode 20 may also be formed by four sides (named as a first side, a second side, a third side and a fourth side, respectively), where the first side and the second side may be two first wires 201 extending along the first direction X and located at a boundary position of the touch electrode 20, and the third side and the fourth side may be two sides connecting two end points of the two first wires 201 as the first side and the second side (the two end points may be understood as a start point and an end point of each first wire 201 along the second direction Y in the two first wires 201 at the boundary position); of course, the outline of the touch electrode 20 may be formed in other feasible manners, which is not limited in the embodiment of the invention.

It should be noted that, in fig. 1, the number of the touch electrodes 20 in the display panel 10 is only exemplarily shown to be 28, and the array arrangement manner of 4 columns and 7 rows (the first direction X is taken as a row direction, and the second direction Y is taken as a column direction) is formed, but the display panel 10 provided by the embodiment of the present invention is not limited. In other embodiments, the number of the touch electrodes 20 and the array arrangement of the touch electrodes 20 may be set according to the actual requirement of the display panel 10, which is not limited in the embodiment of the present invention.

Next, it should be noted that fig. 1 only exemplarily shows that in the display panel, 9 first conductive lines 201 extending along the first direction X are disposed within a range surrounded by an outline of each touch electrode 20, but the display panel provided by the embodiment of the present invention is not limited thereto. In other embodiments, the number of the first wires 201 in the range surrounded by the outline of each touch electrode 20 may be set according to actual requirements of the display panel 10, which is not limited in the embodiment of the present invention.

Again, it should be noted that fig. 1 only exemplarily shows that the first wires 201 located in the range surrounded by the outline of the same touch electrode 20 are electrically connected by a straight line extending along the second direction Y, but the present invention is not limited to the display panel 10 provided in the embodiment of the present invention. In other embodiments, the manner of electrically connecting the first wires 201 constituting the touch electrode 20 may be set according to actual requirements of the display panel 10, which is not limited in the embodiment of the present invention. On this basis, it should be further noted that fig. 1 only exemplarily shows the connection lines between the first conductive lines 201 in the touch electrodes 20 in the first row arranged along the first direction X, and the connection lines between the first conductive lines 201 in the second row to the seventh row are not shown, only for better illustrating the linear polarization structure formed by the first conductive lines 201. It can be understood by those skilled in the art that the first wires 201 in the same touch electrode 20 are electrically connected, but the form of the electrically connected connecting wires can be set according to the actual requirement of the display panel 10, and the embodiment of the invention is not limited thereto.

In addition, it should be noted that the film layer structure of the display panel 10 shown in fig. 2 further includes a protective functional layer 103, and the protective functional layer 103 is located on a side of the touch functional layer 102 away from the display functional layer 101. The protective functional layer 103 is used to protect the touch functional layer 102 and the display functional layer 101, so as to reduce damages caused by bumping, scratching, and the like to the touch functional layer 102 and the display functional layer 101, thereby ensuring the stability of the overall function of the display panel 10 and prolonging the service life of the display panel 10. For example, the protective functional layer 103 may be a protective cover plate or a thin film encapsulation layer, and the material and the specific film layer stack structure may be any one or more structures and structures known to those skilled in the art, which are not described again nor limited in this embodiment of the present invention.

Optionally, with continued reference to fig. 1, one first conducting line 201 in the touch electrode 20 is located on the same straight line as at least one first conducting line 201 in the touch electrode 20 adjacent to the first direction X.

Illustratively, the first direction X is a row direction and the second direction Y is a column direction. In four adjacent touch electrodes 20 along the row direction, 9 first conductive lines of each touch electrode 20 are all located on the same 9 straight lines. Illustratively, each first conductive line 201 of the Nth (N is an integer and 1. ltoreq. N.ltoreq.9) row is located on the same Nth (N is an integer and 1. ltoreq. N.ltoreq.9) straight line.

With such an arrangement, on one hand, the first wires 201 can form part of the outline of the touch electrode 20, which is convenient for dividing the touch electrode 20; on the other hand, an initial first conductive line extending along the first direction X may be provided, and the initial first conductive line is broken to form the first conductive line 201 in each touch electrode 20, so as to facilitate the design of the pattern of the first conductive line 201 of the touch functional layer 102; meanwhile, the first wire 201 can be formed by breaking the initial first wire by using a one-time etching process, and the sub-wire 2011 formed by breaking the first wire 201 is completed, so that the manufacturing process of the touch functional layer 102 can be simplified, the manufacturing difficulty of the touch functional layer is reduced, and the manufacturing yield of the touch functional layer 102 is improved.

It should be noted that fig. 1 only exemplarily shows that, in two touch electrodes 20 adjacent to each other along the first direction X, two first conductive lines 201 adjacent to each other along the first direction X are all located on the same straight line, but the display panel 10 provided in the embodiment of the present invention is not limited thereto. In other embodiments, the first conductive lines 201 may be disposed in two touch electrodes 20 adjacent to each other along the first direction X according to actual requirements of the display panel 10, and only a part of the two first conductive lines 201 adjacent to each other along the first direction X are located on the same straight line.

Optionally, with continued reference to fig. 1, the touch electrodes 20 are arranged in an array along a first direction X and a second direction Y.

With such an arrangement, an arrangement direction (i.e., the first direction X) of the touch electrodes 20 arranged in an array and an extending direction (i.e., the first direction X) of the first conductive lines 201 can be the same direction, so that the first conductive lines 201 can be used to form a partial outline of the touch electrodes 20, thereby facilitating the division of the touch electrodes 20. On this basis, it is also beneficial to stagger the first intervals 2012, so as to facilitate achieving that the first intervals 2012 are uniformly distributed in the plane where the entire touch functional layer 102 is located, thereby facilitating avoiding the problem that the outline of the touch electrode 20 is visible due to the fact that only the break point is set at the outline position of the touch electrode 20, and thus the picture display effect of the display panel 10 can be improved.

It should be noted that fig. 1 only shows an array arrangement of 4 columns and 7 rows of pixel electrodes 20 by way of example, but the present invention is not limited to the display panel 10 provided in the embodiment of the present invention. In other embodiments, the array arrangement of the pixel electrodes 20 may also be set according to the actual requirements of the display panel 10, which is not limited in the embodiment of the present invention.

Optionally, fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention (for clarity, fig. 3 only exemplarily shows partial structures of two touch electrodes 20 adjacent to each other along the first direction X). Referring to fig. 3, the display panel 10 further includes a dummy electrode 202 disposed between the adjacent touch electrodes 20 in the first direction X and insulated from the touch electrodes 20, wherein the dummy electrode 202 includes a plurality of second conductive lines 2021 extending in the first direction X and arranged in the second direction Y; the second wire 2021 and at least one first wire 201 of the touch electrodes 20 adjacent to each other in the first direction X are located on the same straight line.

The dummy electrodes 202 are used to space the touch electrodes 20 adjacently disposed along the first direction X apart from each other, so that a preset space is formed between the two touch electrodes 20, and the preset space is disposed to reduce signal interference between the adjacent touch electrodes 20, so that the touch sensitivity of the display panel 10 is high.

Particularly, when the thickness of the protective function layer 103 is thick (for example, the protective function layer 103 is a protective cover plate), since the touch surface of the display panel 10 is located on one side of the protective function layer 103 away from the touch function layer 102, the strength of the touch signal sensed by the touch function layer 102 is weak, at this time, by providing the dummy electrode 202, a preset interval is reserved between the adjacent touch electrodes 20 along the first direction X, so that the signal interference between the adjacent touch electrodes 20 can be reduced, and the normal operation of the touch electrodes 20 is favorably ensured, thereby being favorable for ensuring the accuracy of detecting the touch signal, and further being favorable for ensuring the touch accuracy of the display panel 10.

In addition, by arranging the second wire 2021 and at least one first wire 201 in the touch electrode 20 adjacent to each other in the first direction X to be located on the same straight line, the design and manufacturing difficulty of the touch function layer 102 can be reduced. For example, an initial conductive line extending along the first direction X may be provided, and the initial conductive line is broken to form the first conductive line 201 and the second conductive line 2021, so that the pattern design of the first conductive line 201 and the second conductive line 2021 in the touch functional layer 102 may be simplified; meanwhile, the initial lead wire can be broken into a plurality of first lead wires 201 by one-time etching process, and the initial lead wire can be broken into a second lead wire 2021 located between the adjacent first lead wires 201 along the first direction X, so that the manufacturing process of the touch functional layer 102 can be simplified, the manufacturing difficulty of the touch functional layer can be reduced, and the manufacturing yield of the touch functional layer can be improved.

It should be noted that the "preset interval" written above may be set according to the touch sensitivity requirement of the display panel, that is, the width of the dummy electrode 202 may be set according to the touch sensitivity requirement of the display panel, which is not limited in the embodiment of the present invention. The "width of the dummy electrode 202" may be understood as an average value of the lengths of the second conductive lines 2021 along the first direction X, the length difference being within a predetermined length range (the range may be set according to actual requirements of the display panel).

In addition, it should be noted that, in other embodiments, in order to increase the breaking points and make the distribution of the breaking points more uniform on the plane where the entire touch functional layer is located, the entire second conductive line may be further disposed within a range surrounded by the outline of the touch electrode, which is not limited in the embodiment of the present invention.

Optionally, with continued reference to fig. 3, the at least one second wire 2021 extends to between two first wires 201 in the at least one touch electrode 20.

Here, the first direction X is considered as a row direction, and the second direction Y is considered as a column direction.

Illustratively, one second conductive line 2021 in the mth row extends to a position between the first conductive line 201 in the (M-1) th row and the first conductive line 201 in the (M +1) th row in the same touch electrode 20, where M is an integer and M ≧ 2. Illustratively, one second conductive line 2021 in the 2 nd row extends to between the first conductive line 201 in the 1 st row and the first conductive line 201 in the 3 rd row in the touch electrode 20 on the left side in fig. 3.

Illustratively, the second conductive line 2021 in the 5 th row and the 6 th row extends to between the first conductive line 201 in the 4 th row and the first conductive line 201 in the 7 th row of the touch electrode 20 on the right side in fig. 3.

With such an arrangement, the breaking points between the first conductive line 201 and the second conductive line 2021 in the same row are not only distributed on the outline of the touch electrode 20, but also distributed within the range surrounded by the outline of the touch electrode 20, so as to be beneficial to avoiding that all the breaking points are located at the outline of the touch electrode 20, i.e. beneficial to avoiding the problem that the outline of the touch electrode 20 is visible, and thus beneficial to improving the image display effect of the display panel 10. In addition, the second wire 2021 is extended between the two first wires 201, so that the electrical performance of the touch electrode 20 can be improved.

It should be noted that the expressions "left side" and "right side" in the above are only exemplary illustrations of fig. 3 based on the orientation shown in fig. 3, and should not be construed as limiting the display panel 10 provided by the embodiment of the present invention.

Optionally, fig. 4 is a schematic structural diagram of another display panel provided in an embodiment of the present invention. Referring to fig. 4, in two adjacent second wires 2021 in the second direction Y, one of the second wires 2021 extends between two first wires 201 in the touch electrode 20, and the other second wire 2021 does not extend between two first wires 201 in the touch electrode 20.

Wherein, a break point is arranged between the first conducting wire 201 and the second conducting wire 2012. So set up, do benefit to and make breaking point evenly distributed in the touch-control functional layer to can avoid the visible problem of outline of touch-control electrode 20, do benefit to the realization and improve display panel's picture display effect under the prerequisite of attenuate display panel's whole thickness from this.

In addition, the extending mode of the two adjacent second wires 2021 is set, so that the second wires 2021 can be regularly arranged, thereby facilitating the simplification of the design difficulty of the second wires 2021 of the touch functional layer and the simplification of the design difficulty of the wire patterns of the whole touch functional layer.

Optionally, with continued reference to fig. 3 or fig. 4, a second gap 2022 is formed between the first conductive line 201 and the second conductive line 2021 adjacent to each other in the first direction X, and the plurality of second gaps 2022 are arranged in a staggered manner in the second direction Y.

With such an arrangement, the second spacers 2022 are favorably distributed on the outline of the touch electrode 20 and within the range surrounded by the outline of the touch electrode 20, so that the second spacers 2022 cannot be connected to form the outline of the touch electrode 20, and the outline of the touch electrode 20 can be prevented from being visible.

Optionally, fig. 5 is a schematic structural diagram of another display panel provided in an embodiment of the present invention. Referring to fig. 5, the intervals are staggered in both the first direction X and the second direction Y, wherein each interval includes a first interval 2012 and a second interval 2022.

With this arrangement, the intervals (including the first interval 2012 and the second interval 2022) in the touch functional layer are all distributed in a staggered manner, so that no visible pattern is formed in each interval, and thus, the formation of other visible patterns can be avoided while avoiding the visible edge profile of the touch electrode 20.

Illustratively, the intervals (including the first interval 2012 and the second interval 2022) in the touch functional layer may be uniformly distributed, where "uniformly distributed" may be understood as equal to the interval between two adjacent intervals along the first direction X and equal to the interval between two adjacent intervals along the second direction Y, and thus, no visible pattern is formed in each interval in the touch functional layer, which is beneficial to improving the picture display effect of the display panel.

Optionally, fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 6, the touch electrodes include touch driving electrodes 201T and touch sensing electrodes 201R, and the touch driving electrodes 201T and the touch sensing electrodes 201R are alternately arranged in both the first direction X and the second direction Y; in the first direction X, a dummy electrode 202 is disposed between the touch driving electrode 201T and the touch sensing electrode 201R; in the second direction Y, a touch driving electrode 201T is disposed adjacent to a touch sensing electrode 201R and dummy electrodes 202 located at two sides of the touch sensing electrode 201R.

The touch driving electrode 201T is used for providing a touch driving signal, and the touch sensing electrode 201R is used for sensing a touch signal. By arranging the dummy electrode 202 between the touch driving electrode 201T and the touch sensing electrode 201R, signal interference between the touch driving signal and the touch sensing signal can be avoided, which is beneficial to improving touch accuracy and touch sensitivity. By arranging the touch driving electrodes 201T and the touch sensing electrodes 201R in the first direction X and the second direction Y alternately, the touch driving electrodes 201T and the touch sensing electrodes 201R are distributed almost uniformly in the plane of the whole display panel, so that the touch actions at the positions of the whole display panel can be sensed.

It should be noted that fig. 6 only shows the relative position relationship between the initial wires (as understood in conjunction with the above, the initial wires extend along the first direction X and are arranged along the second direction Y; the initial wires are disconnected by the disconnection points to form the first wires 201 and the second wires 2021) and the respective electrodes (including the touch driving electrodes 201T, the touch sensing electrodes 201R and the dummy electrodes 202), and the positions of the disconnection points in the initial wires are not shown. The position of the break point in the original wire may adopt any one of the manners shown above, which is not limited by the embodiment of the present invention.

In addition, it should be noted that fig. 6 only exemplarily shows that the widths of the touch electrodes (including the touch driving electrodes 201T and the touch sensing electrodes 201R) and the dummy electrodes 202 in the second direction Y are equal, but the display panel 10 provided by the embodiment of the present invention is not limited. In other embodiments, the widths of the touch electrodes in the second direction Y may be set to be different according to the actual requirement of the display panel 10, and exemplarily, the width of the touch electrode in the second direction Y may be greater than the width of the dummy electrode; the width of the touch electrodes in the second direction Y may be smaller than the width of the dummy electrodes, and of course, the two structures may also be understood that the dummy electrodes may be disposed between two adjacent touch electrodes in the second direction Y, which is not limited in the embodiment of the present invention.

Optionally, fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 7, two ends of a single second conductive line 2021 extend to two adjacent touch electrodes 20, wherein the second conductive lines 2021 located in the two adjacent touch electrodes 20 are respectively referred to as a first conductive portion 20211 and a second conductive portion 20212, and the second conductive line 2021 located in the space between the two adjacent touch electrodes 20 is referred to as a third conductive portion 20213; the first conductive portion 20211 and the second conductive portion 20212 are respectively located at both ends of the third conductive portion 20213 along the first direction X; the first conductive part 20211 is located between the two first wires 201 in one touch electrode 20 in the second direction Y; the second conductive part 20212 is located between the two first wires 201 in the other touch electrode 20 in the second direction Y; the third conductive portion 20213 is not located between the first wires 201 in the second direction Y. The length C1 of the first conductive portion 20211, the length C2 of the second conductive portion 20212, and the length C3 of the third conductive portion 20213 satisfy: c1 is not less than C3 and is more than C2.

The second conductive line 2021 is electrically insulated from each sub-conductive line 2011 of the first conductive line, i.e., the second conductive line 2021 is electrically insulated from the touch electrode 20. When a touch occurs, a coupling capacitance is still generated on the second conductive line 2021, and the coupling capacitance can affect the touch sensing signal on the adjacent first conductive line 201.

When a touch action (also referred to as a touch action) occurs at a position corresponding to the second wire 2021, a coupling capacitance is generated on the second wire 2021, and if the second wire 2021 extends to a range surrounded by the outline of the touch electrode 20, the coupling capacitance generated on the second wire 2021 affects the touch capacitance, where the touch capacitance is a capacitance generated by the touch electrode in response to the touch action.

Based on this, the second wires 2021 may be disposed in the space between the adjacent touch electrodes 20. However, the structure in which the second conductive line 2021 is provided only in the space is liable to cause the display panel 10 to have a risk that the outline of the dummy electrode 202 formed of the second conductive line 2021 is visible. Therefore, the second wire 2021 may be extended to a range surrounded by the outline of the touch electrode 20.

Considering the coupling capacitance problem generated on the second conductive line 2021 and the profile visibility problem of the dummy electrode 202 together, the second conductive line 2021 may extend only into the touch electrode 20 on one side of the dummy electrode 202, but not into the touch electrode 20 on the other side of the dummy electrode 202, as can be seen in fig. 5.

Referring to fig. 5, the dummy electrode 202 in the display panel is provided with the second conductive line 2021. Taking the orientation shown in fig. 5 as an example, the touch electrodes 20 may be referred to as a left touch electrode and a right touch electrode, a dummy electrode 202 is disposed between the left touch electrode and the right touch electrode, and the dummy electrode 202 is composed of a plurality of second wires 2021. The plurality of second conductive lines 2021 in the figure can be divided into two types: one type of second wires only extend into the range surrounded by the outline of the right-side touch electrode, namely, one type of second wires and two break points between the first wires are arranged on the outline of the left-side touch electrode, and the other type of second wires are arranged in the right-side touch electrode; the other type of second wires only extend into the range surrounded by the outline of the left touch electrode, namely, one of two breaking points between the type of second wires and the first wires is arranged on the outline of the right touch electrode, and the other breaking point is arranged in the range surrounded by the outline of the left touch electrode. Further analysis of the two types of second conductive lines 2021 in the dummy electrode 202 shows that: the coupling capacitance generated on the second wire 2021, which extends only to the range surrounded by the outline of the right touch electrode, only has an influence on the touch capacitance of the right touch electrode, and does not influence the touch capacitance of the left touch electrode; the coupling capacitance on the second wire 2021, which extends only into the range surrounded by the outline of the left touch electrode, only has an influence on the touch capacitance of the left touch electrode, but does not affect the touch capacitance of the right touch electrode. Therefore, the influence of the coupling capacitor generated on the second wire 2021 on the touch capacitor can be compensated by using the driving circuit, and the control algorithm is simplified, thereby being beneficial to ensuring the touch accuracy of the display panel.

In the display panel shown in fig. 5, there may still be more breaking points disposed on the outline of the touch electrode 20, and in order to further reduce the breaking points on the outline of the touch electrode 20, the second conductive line 2021 in the dummy electrode 202 may extend into two touch electrodes 20 adjacent to the dummy electrode 202 left and right (i.e., adjacent to the dummy electrode 202 along the first direction X), as shown in fig. 7.

In the display panel shown in fig. 7, by setting the length relationship among the first conductive portion 20211, the second conductive portion 20212 and the third conductive portion 20213, the coupling capacitance generated on the second conductive line 2021 can be equivalently regarded as the touch sensing signal sensed by the touch electrode 20 to which the third conductive portion 20213 extends, and the influence of the coupling capacitance on the side touch sensing signal sensed by the touch electrode 20 to which the first conductive portion 20211 extends can be ignored, so that the touch function of the display panel can be ensured to be good on the premise of avoiding the visibility of the pattern to improve the image display effect of the display panel.

The specific analysis is as follows: taking the orientation shown in fig. 7 as an example, when both ends of the second conducting wire 2021 extend into the range enclosed by the outlines of two adjacent touch electrodes 20, that is, both ends of the second conducting wire 2021 extend into the range enclosed by the outline of the left touch electrode and the range enclosed by the outline of the right touch electrode, the influence of the second conducting wire 2021 on the touch capacitance can be understood from the following two aspects: on the first hand, since the second conducting wire 2021 not only extends to the range surrounded by the outline of the left touch electrode, but also extends to the range surrounded by the outline of the right touch electrode, the coupling capacitance generated on the second conducting wire 2021 will have an influence on the touch capacitance of the right touch electrode as well as the touch capacitance of the left touch electrode; in the second aspect, also because the second conducting wire 2021 extends not only to the range surrounded by the outline of the left touch electrode, but also to the range surrounded by the outline of the right touch electrode, the second conducting wire 2021 can conduct the touch signal of the left touch electrode to the right touch electrode, or conduct the touch signal of the right touch electrode to the left touch electrode, so that interference occurs between the touch signals of the left touch electrode and the right touch electrode.

In order to avoid the influence of the second conductive wire 2021 on the touch capacitor, the embodiment of the invention designs the length relationship among the first conductive portion 20211, the second conductive portion 20212 and the third conductive portion 20213. Taking the structure in the elliptic dotted circle in fig. 7 as an example, under the length relationship, most of the second conducting wire 2021 (i.e., the second conducting portion 20212) extends into the range surrounded by the outline of the right touch electrode, and only a very small part (i.e., the first conducting portion 20211) extends into the range surrounded by the outline of the left touch electrode, at this time, the influence of the coupling capacitance possibly generated on the second conducting wire 2021 on the touch capacitance of the right touch electrode is relatively large, and the influence on the touch capacitance of the left touch electrode is negligible, so that the influence of the coupling capacitance on the second conducting wire 2021 on the touch capacitance of the right touch electrode can be compensated by using the driving circuit, and the problem of the first aspect can be solved. Meanwhile, since the length of the second wire 2021 extending to the range surrounded by the outline of the left touch electrode is extremely small, the conduction between the touch capacitance of the left touch electrode and the touch capacitance of the right touch electrode caused by the second wire 2021 can be avoided, that is, the interference between the touch signals of the left touch electrode and the right touch electrode can be avoided, thereby solving the above-mentioned second problem.

Optionally, in order to avoid the interference of the coupling capacitor on the second wire 2021 to the touch signal of the touch electrode, the dummy electrode 202 may be electrically connected to a fixed potential, so as to solve the interference problem of the coupling capacitor by avoiding the generation of the coupling capacitor.

For example, the second wires 2021 shown in fig. 7 can be further divided into two types, where the second wires 2021 of the first type are only located in the space between the two touch electrodes 20 and do not extend into the range enclosed by the outline of the touch electrodes 20 (i.e., do not extend into the touch electrodes 20), so that it can also be understood that the second wires 2021 of the type are only composed of the third conductive part 20213; the second wire 2021 of the second type is not only located in the space between the two touch electrodes 20, but also extends into the two adjacent touch electrodes 20, so that it can also be understood that the second wire 2021 of the second type is composed of the first conductive part 20211, the second conductive part 20212, and the third conductive part 20213. The first type of second wires 2021 and the second type of second wires 2021 are alternately arranged, so that the electrical performance of the whole touch functional layer is uniform, and the electrical consistency of the whole display panel is improved.

Optionally, with continued reference to fig. 7, the value range of the first interval 2012 (the width a11 along the first direction X) is a11 ≦ 1 μm; the second gap 2022 (the width a12 along the first direction X) has a value in the range of a12 ≦ 1 μm.

With such an arrangement, on one hand, the first conducting wire 201 and the second conducting wire 2021 adjacent to each other along the first direction X can be completely disconnected, and the sub-conducting wires 2011 adjacent to each other along the first direction X in the first conducting wire 201 can be completely disconnected, so that touch errors caused by electrical adhesion can be avoided, and especially when a11 is 1 μm and a12 is 1 μm, not only is the process precision easily achieved, but also the risk of short circuit between different types of electrodes caused by conductive material residues can be greatly reduced; on the other hand, the widths of the first spacer 2012 and the second spacer 2022 along the first direction X are not too large, so that the light leakage phenomenon caused by the too large spacer width can be avoided, and thus, it is beneficial to ensure that the linear polarization effect is good when the touch functional layer is used as a linear polarization functional layer.

It should be noted that, the above is only exemplary to show that a11 ≦ 1 μm and a12 ≦ 1 μm, but the present invention is not limited to the display panel provided in the embodiment of the present invention. In other embodiments, the value ranges of a11 and a12 can be set according to the actual requirements of the display panel, and exemplarily, 0.5 μm ≦ a11 ≦ 1 μm, 0.5 μm ≦ a12 ≦ 1 μm, or 0.1 μm ≦ a11 ≦ 0.5 μm, 0.1 μm ≦ a12 ≦ 0.5 μm, or a11 ≦ 1 μm, and a12 ≦ 1 μm; the value ranges of the two can be the same or different, and the embodiment of the invention does not limit the value ranges.

Optionally, with reference to fig. 7, along the second direction Y, a distance a2 between two adjacent wires has a value range of a2 ≤ 1 μm; wherein the conductive lines include a first conductive line 201 and a second conductive line 2021.

By such an arrangement, the distance between the first wire 201 and the second wire 2021 is small enough, which is beneficial to reducing haze of the film layer, and beneficial to enabling more light rays to pass through the touch functional layer and be seen by a user, thereby being beneficial to ensuring that the display panel has higher image brightness and higher image definition.

It should be noted that, the above is only exemplarily shown that a2 is less than or equal to 1 μm, but the present invention is not limited to the display panel provided by the embodiment of the present invention. In other embodiments, the value range of a2 can be set according to the actual requirement of the display panel, for example, a2 is less than or equal to 0.8 μm; or A2 is less than or equal to 0.5 μm, which is not limited in the embodiment of the invention.

Optionally, with reference to fig. 7, along the second direction Y, the width W of the conductive line is in a range W less than or equal to 1 μm; wherein the conductive lines include a first conductive line 201 and a second conductive line 2022.

By such an arrangement, the widths of the first wire 201 and the second wire 2021 are sufficiently small, which is beneficial to reducing haze of the film layer, and beneficial to enabling more light rays to pass through the touch functional layer to be seen by a user, thereby being beneficial to ensuring that the display panel has higher image brightness and higher image definition.

It should be noted that, the above is only exemplarily shown to be W ≦ 1 μm, but not limiting the display panel provided by the embodiment of the present invention. In other embodiments, the value range of a2 can be set according to the actual requirement of the display panel, and W is exemplary less than or equal to 0.75 μm; or W is less than or equal to 0.35 μm, which is not limited in the embodiment of the invention.

Optionally, the conductive lines are formed by nanoimprinting.

When the first conductive line 201 (which may be understood as a sub-conductive line 2011 in the first conductive line) and the second conductive line 2021 are formed, an imprint pattern may be formed on the surface of the metal layer by nanoimprinting, that is, an initial conductive line is formed; the initial conductive line is etched to form break points, so that the sub-conductive lines 2011 and the second conductive line 2021 in the first conductive line 201 are formed.

In which, the nanoimprint method can ensure that the line width (i.e. the width W of the conductive line) and the line distance (i.e. the distance a2 between two adjacent conductive lines) of the conductive line are sufficiently small, thereby being beneficial to reducing the haze of the film layer.

It should be noted that, in other embodiments, the conductive lines meeting the above requirements of the value ranges of the line width and the line distance may be formed in other manners known to those skilled in the art, which is not limited in the embodiment of the present invention.

Optionally, the first conductive line and the second conductive line are made of conductive metals.

With the arrangement, on one hand, the first lead and the second lead have better conductivity, so that the formed touch electrode can better transmit touch signals, and the touch function of the display panel is ensured to be good; on the other hand, the transmittance and the reflectivity of the conductive metal are low, so that the formed linear polarization structure can only transmit light rays parallel to the linear polarization direction and block light rays in other directions, and the linear polarization structure formed by the conducting wires (including the first conducting wire and the second conducting wire) is favorable for ensuring a good linear polarization effect; meanwhile, the reflected light is less, so that the crosstalk among the light rays is favorably avoided, and the abnormal picture display caused by the crosstalk is avoided.

For example, the conductive metal may be black metal.

It should be noted that the materials of the first conductive line and the second conductive line may be the same, thereby facilitating the simultaneous formation of the first conductive line and the second conductive line to simplify the process.

In addition, it should be noted that the material of the first and second conductive lines may also be other kinds of materials with good conductivity, low reflectivity (for example, reflectivity less than 10%) and low transmittance (for example, transmittance less than 10%) known to those skilled in the art.

Optionally, fig. 8 is a schematic structural diagram of another display panel provided in an embodiment of the present invention, and fig. 9 is a schematic cross-sectional structural diagram of another display panel provided in an embodiment of the present invention. Referring to fig. 8 and 9, the display panel 10 includes a plurality of touch driving units and a plurality of touch sensing units; each touch driving unit and each touch sensing unit comprise a plurality of touch electrodes 20; the display panel 10 further includes: a first insulating layer 1022, a bridge spanning layer 1023, and a second insulating layer 1024 sequentially stacked on the first conductive line 201; a via 10232 is disposed in the first insulating layer 1024; the cross-bridge layer 1023 comprises first type connection lines 10231, and the first type connection lines 10231 electrically connect different touch electrodes 20 in the same touch driving unit through vias 10232; or the first-type connection lines 10231 electrically connect different touch electrodes 20 in the same touch sensing unit through the vias 10232.

The touch driving unit is arranged in such a way that different touch electrodes in the same touch driving unit are electrically connected and are electrically connected with the touch driving signal control end so as to realize the control of the touch driving signal; and electrically connecting different touch electrodes in the same touch sensing unit and electrically connecting the touch electrodes with a touch sensing signal receiving end so as to receive the touch sensing signal.

Meanwhile, the dummy electrodes 202 are staggered along the second direction Y, so that the outline of the dummy electrodes 202 can be prevented from being formed in a visible pattern, thereby being beneficial to avoiding the pattern visibility problem of the display panel.

In addition, two dummy electrodes 202 adjacent to each other along the first direction X may be electrically connected to each other and to a fixed potential, so that the influence of the coupling capacitance generated on the second conductive line 2021 of the dummy electrode 202 on the touch signal of the touch common electrode 20 may be avoided, and the touch accuracy of the display panel may be improved.

It should be noted that fig. 8 only exemplarily shows that three touch sensing electrodes 201R along a diagonal direction of the first direction X and the second direction Y are electrically connected to form a touch sensing unit, but the display panel provided by the embodiment of the present invention is not limited thereto. In other embodiments, the touch electrodes in the preset rows, the preset columns or the preset areas may be electrically connected to form the touch driving unit or the touch sensing unit according to the actual requirement of the display panel and the arrangement form of the touch electrodes 20, which is not limited in the embodiments of the present invention.

Next, it should be noted that fig. 8 only shows the first-type connecting lines 10231 extending along a direction having an angle (which may be 55 ° for example) with the first direction X, but the present invention is not limited to the display panel provided by the embodiment of the present invention. In other embodiments, the extending direction of the first-type connecting lines 10231 (which may be understood as the direction in which the long sides of the first-type connecting lines 10231 are located) may be set according to the relative position relationship of the touch electrodes, for example, the extending direction may be parallel to the first direction X, or the extending direction may be parallel to the second direction Y, or the extending direction may be parallel to the extending direction of the frame of the display panel, which is not limited in the embodiments of the present invention.

In addition, it should be noted that fig. 8 only shows the relative position relationship between the initial wires (as understood in conjunction with the above, the initial wires extend along the first direction X and are arranged along the second direction Y; the initial wires are broken by the breaking points to form the first wires 201 and the second wires 2021) and the respective electrodes (including the touch driving electrodes 201T, the touch sensing electrodes 201R and the dummy electrodes 202), and the positions of the breaking points in the initial wires are not shown. The position of the break point in the original wire may adopt any one of the manners shown above, which is not limited by the embodiment of the present invention.

Optionally, the bridge-spanning layer 1023 further includes a second type of connection line, and the second type of connection line is used for connecting the plurality of first conductive lines 201 in the same touch electrode 20 to form the touch electrode 20.

For example, the material of the bridge-spanning layer 1023 is usually a transparent conductive oxide material (for example, indium tin oxide), and by electrically connecting the first conductive lines 201 in the same touch electrode 20 through the second type of connection lines in the bridge-spanning layer 1023, the intensity of light transmitted between two adjacent first conductive lines 201 can be increased, and thus the linear polarization effect of the linear polarization structure can be improved.

Optionally, an auxiliary conductive wire is further included; the auxiliary conductive wire and the conductive wire are made of the same material and are formed in the same process step; the auxiliary conductive lines are used to electrically connect the first conductive lines 201 in the same touch electrode 20 to form a touch electrode.

By the arrangement, the auxiliary conductive wire and the conductive wire can be synchronously formed, so that the manufacturing process of the touch control functional layer can be simplified, and the whole manufacturing process of the display panel is simplified.

Optionally, with continued reference to fig. 9, the touch functional layer 102 further includes a substrate base 1020, a first insulating layer 1022, a bridge spanning layer 1023, a second insulating layer 1024, and an optical phase retardation layer 1025; on one side of the substrate 1020, a first conductive line (the position of a film layer where the first conductive line is located is shown by a conductive layer 1021 in fig. 9), a first insulating layer 1022, a bridge spanning layer 1023, a second insulating layer 1024, and an optical phase retardation layer 1025 are sequentially stacked; and the optical phase retardation layer 1025 is located on the side of the base substrate 1020 near the display function layer 101.

The base substrate 1020 supports the functional layers stacked on one side of the base substrate 1020. Meanwhile, considering that the touch functional layer 102 is disposed on the light emitting side of the display functional layer 101, in order to ensure that the final image display brightness of the display panel 10 is high, a substrate made of a material with a high light transmittance (for example, the light transmittance is greater than or equal to 90%) may be selected, and a glass substrate may be selected for example; in addition, when the flexible substrate is applied to a flexible display panel, a flexible substrate with high light transmittance can be selected.

The first insulating layer 1022 is used to protect the conductive layer 1021 and prevent leakage; meanwhile, the via 10232 is formed to connect different touch electrodes in the same touch driving unit or the same touch sensing unit through the via 20232. For example, the first insulating layer 1022 may be made of an inorganic insulating material such as silicon nitride, silicon oxynitride, or the like; but also organic insulating materials or other types of insulating materials known to those skilled in the art, and the embodiments of the present invention are not limited thereto.

On one hand, the second insulating layer 1024 is used for protecting the cross-bridge layer 1023 to avoid electric leakage; on the other hand, the planarization function is used to form a flat surface on one side of the touch functional layer 102, so as to facilitate the subsequent formation or attachment of the optical phase retardation layer 1025 on the flat surface. For example, the material of the second insulating layer 1024 may be an organic insulating material, an inorganic insulating material, or other types of insulating materials known to those skilled in the art, and the embodiment of the invention is not limited thereto.

The optical phase retardation layer 1025 is used in combination with a linear polarization structure to achieve an extinction effect, thereby reducing the influence of ambient light reflection on the image display effect of the display panel.

Illustratively, optical phase retarding layer 1025 may include a half wave plate adjacent to the linear polarizing structure and a quarter wave plate adjacent to display functional layer 101. Thus, the display panel 10 may include the display functional layer 101, and a quarter-wave plate, a half-wave plate, and a linear polarization structure which are located on one side of the display functional layer 101 and stacked in this order (the stacking direction is a third direction Z perpendicular to a plane defined by the first direction X and the second direction Y). In the structure, when external environment light enters the display panel 10, the light firstly passes through the linear polarization structure to be changed into linearly polarized light, and the linearly polarized light is changed into circularly polarized light or elliptically polarized light after sequentially passing through the half wave plate and the quarter wave plate; the circularly polarized light or the elliptically polarized light irradiates the array substrate and is reflected by the surface of the thin film transistor layer on the array substrate to form reflected light, the reflected light is still circularly polarized light or elliptically polarized light, but the polarization direction of the reflected light is changed by 180 degrees compared with the circularly polarized light or the elliptically polarized light incident on the array substrate; the reflected light is changed into linearly polarized light after passing through the quarter-wave plate, and is also linearly polarized light after passing through the half-wave plate, and the polarization direction of the linearly polarized light is vertical to the polarization direction of the linear polarization structure, so that the linearly polarized light cannot be emitted through the linear polarization structure, the function of eliminating the reflected light on the side of the array substrate is realized, and the influence of ambient light reflection on the picture display effect of the display panel is reduced.

It should be noted that the optical phase retardation layer 1025 may also adopt other optical phase retardation structures known to those skilled in the art, and the embodiments of the present invention are not limited thereto.

In addition, it should be noted that the conductive layer is also electrically connected to the driving circuit 105 to implement a touch driving function and a touch sensing function.

Optionally, fig. 10 is a schematic cross-sectional structure diagram of another display panel according to an embodiment of the present invention. Referring to fig. 10, the touch function layer 102 further includes a substrate base 1020, a first insulating layer 1022, a bridge spanning layer 1023, a second insulating layer 1024, and an optical phase retardation layer 1025; on one side of the substrate base plate 1020, an optical phase delay layer 1025, a first conductive line (shown as a conductive layer 2021 in fig. 10), a first insulating layer 1022, a bridge spanning layer 1023, and a second insulating layer 1024 are laminated in this order; and the optical phase retardation layer 1025 is located on the side of the base substrate 1020 remote from the display functional layer 101.

The functions of the functional layers are the same as those of the functional layers shown in fig. 9, and the same points can be understood by referring to the above description, which is not repeated herein. The structure of the display panel 10 shown in fig. 10 is different from the structure of the display panel 10 shown in fig. 9 in that: in the display panel 10, the optical phase retardation layer 1025 is provided on the side of the conductive layer 1021 closer to the substrate 1020, and thus the conductive layer 1021 is positioned on the side of the substrate 1020 farther from the display function layer 101. At this time, since the touch action occurs on the side of the conductive layer 1021 away from the display functional layer 101, that is, the touch action may occur on the surface of the protective functional layer 103, the vertical distance between the conductive layer 1021 and the surface where the touch action occurs (that is, the distance in the third direction Z) is small, and thus, the touch accuracy and the touch sensitivity are high.

On the basis of the foregoing embodiments, an embodiment of the present invention further provides a display device, and fig. 11 is a schematic structural diagram of the display device according to the embodiment of the present invention. Referring to fig. 11, the display device 30 includes the display panel 10 in the foregoing embodiment, and therefore the display device 30 provided in the embodiment of the present invention also has the beneficial effects described in the foregoing embodiment, which are not described again here. For example, the display device 30 may include a mobile phone, a computer, a smart wearable device, and other types of display devices known to those skilled in the art, which is not limited by the embodiments of the present invention.

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 described herein, but is capable of various obvious modifications, rearrangements, combinations 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

1. A display panel, comprising:

a display functional layer;

wherein the first direction intersects the second direction;

further comprising: the dummy electrode is positioned between the adjacent touch electrodes in the first direction and is insulated from the touch electrodes, and the dummy electrode comprises a plurality of second conducting wires which extend along the first direction and are arranged along the second direction;

the second lead and at least one first lead in the touch electrode adjacent to the second lead in the first direction are located on the same straight line.

2. The display panel according to claim 1, wherein one of the first conductive lines of the touch electrodes is located on a same straight line with at least one of the first conductive lines of the touch electrodes adjacent to each other in a first direction.

3. The display panel according to claim 1, wherein the touch electrodes are arranged in an array along the first direction and the second direction.

4. The display panel according to claim 1, wherein at least one of the second conductive lines extends between two of the first conductive lines in at least one of the touch electrodes.

5. The display panel according to claim 4, wherein one of the two second conductive lines adjacent to each other in the second direction extends between the two first conductive lines of the touch electrodes, and the other second conductive line does not extend between the two first conductive lines of the touch electrodes.

6. The display panel according to claim 4, wherein the first conductive lines and the second conductive lines adjacent to each other in the first direction have a second space therebetween, and the second spaces are arranged in a staggered manner in the second direction.

7. The display panel according to claim 6, wherein intervals are staggered in both the first direction and the second direction, wherein the intervals include the first interval and the second interval.

8. The display panel according to claim 6, wherein the first interval A11 has a value in the range of A11 ≦ 1 μm; the value range of the second interval A12 is A12 less than or equal to 1 mu m.

9. The display panel according to claim 1, wherein the touch electrodes comprise touch driving electrodes and touch sensing electrodes, and the touch driving electrodes and the touch sensing electrodes are alternately arranged in the first direction and the second direction;

in the first direction, the dummy electrode is arranged between the touch driving electrode and the touch sensing electrode;

in the second direction, one touch driving electrode is adjacent to one touch sensing electrode and the dummy electrodes positioned at two sides of the touch sensing electrode.

10. The display panel according to claim 1, wherein two ends of a single second wire respectively extend into two adjacent touch electrodes, wherein the second wires located in the two adjacent touch electrodes are respectively referred to as a first conductive portion and a second conductive portion, and the second wires located in a space between the two adjacent touch electrodes are referred to as a third conductive portion;

in the first direction, a length C1 of the first conductive portion, a length C2 of the second conductive portion, and a length C3 of the third conductive portion satisfy: c1 is not less than C3 and is more than C2.

11. The display panel according to claim 1, wherein along the second direction, the distance a2 between two adjacent wires has a value in the range of a2 ≦ 1 μm;

wherein the conductive lines include the first conductive line and the second conductive line.

12. The display panel according to claim 1, wherein the width W of the conductive line along the second direction is in a range W ≦ 1 μm;

13. The display panel according to claim 11 or 12, wherein the conductive lines are formed by nanoimprinting.

14. The display panel according to claim 1, wherein the material of each of the first conductive line and the second conductive line is a conductive metal.

15. The display panel according to claim 1, wherein the display panel comprises a plurality of touch driving units and a plurality of touch sensing units;

each touch driving unit and each touch sensing unit comprise a plurality of touch electrodes;

the display panel further includes: the first insulating layer, the bridge layer and the second insulating layer are sequentially stacked on the first lead;

a via hole is formed in the first insulating layer; the bridge layer comprises a first type of connecting line, and the first type of connecting line electrically connects different touch electrodes in the same touch driving unit through the via hole; or the first connecting line electrically connects different touch electrodes in the same touch sensing unit through the via hole.

16. The display panel of claim 15, wherein the bridge layer further comprises a second type of connection line, and the second type of connection line is used for electrically connecting the first conductive lines in the same touch electrode to form the touch electrode.

17. The display panel according to claim 1, further comprising an auxiliary conductive line; the auxiliary conductive wire and the conductive wire are made of the same material and are formed in the same process step;

the auxiliary conductive wire is used for electrically connecting the first leads in the same touch electrode to form the touch electrode.

18. The display panel according to claim 1, wherein the touch functional layer further comprises a substrate, a first insulating layer, a bridge layer, a second insulating layer, and an optical phase retardation layer;

the first lead, the first insulating layer, the bridge layer, the second insulating layer and the optical phase delay layer are sequentially stacked on one side of the substrate; the optical phase delay layer is positioned on one side of the substrate close to the display function layer;

or, the optical phase delay layer, the first wire, the first insulating layer, the bridge layer, and the second insulating layer are sequentially stacked on one side of the substrate; and the optical phase delay layer is positioned on one side of the substrate far away from the display function layer.

19. A display device characterized by comprising the display panel according to any one of claims 1 to 18.