CN109061929B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN109061929B CN109061929B CN201811287205.7A CN201811287205A CN109061929B CN 109061929 B CN109061929 B CN 109061929B CN 201811287205 A CN201811287205 A CN 201811287205A CN 109061929 B CN109061929 B CN 109061929B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
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Abstract
The invention discloses a display panel and a display device, which effectively solve the problem of large delay difference of transmission signals in areas on opposite sides of two adjacent touch electrodes in the row direction and the column direction and ensure high display effect of the display panel. In addition, the main signal end of the third touch electrode and the main signal end of the fourth touch electrode are arranged in a non-overlapping shape in the column direction, so that a plurality of electrode leads connected with the corresponding main signal ends respectively are prevented from crossing when extending in the column direction, no jumper wire for connecting the electrode leads and the main signal ends is required to be arranged, and the wiring quantity and difficulty are reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
Currently, in order to reduce the thickness and weight of a touch panel, research for integrating the touch panel and a liquid crystal display panel is actively carried out. Among them, an In-Cell (In-Cell) touch scheme In which a touch panel is embedded inside a liquid crystal display panel has received much attention. The In-Cell touch scheme includes two modes of self-capacitance touch and mutual capacitance touch. The self-capacitance touch control mode can be as follows: the transparent conducting layer used as a common (VCOM) electrode on the array substrate is divided into a plurality of blocks to be used as touch electrodes, then specific electrode wiring is utilized to be communicated with the touch electrodes through via holes, one end of the electrode wiring is connected to a driving integrated circuit, when a finger or a touch structure touches the touch display panel of the self-capacitance, fluctuation of capacitance values of the touch electrodes corresponding to corresponding touch positions can be caused, and the driving integrated circuit can determine the positions of touch points by detecting the fluctuation of the capacitance values, so that the touch function is finally realized. The display effect of the existing self-capacitance touch display panel is poor.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device, which effectively solve the problem of poor display effect of the existing display panel.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a display panel, the display panel comprising:
the touch control electrodes are arranged in M rows by N columns, and M and N are integers not less than 2;
a main signal end is arranged in each touch electrode;
in the row direction, two adjacent touch electrodes are respectively a first touch electrode and a second touch electrode, and the distance difference between the vertical distance from the main signal end of the first touch electrode to the side edge line of the first touch electrode close to the second touch electrode and the vertical distance from the main signal end of the second touch electrode to the side edge line of the second touch electrode close to the first touch electrode is within a certain range;
in the column direction, two adjacent touch electrodes are respectively a third touch electrode and a fourth touch electrode, and the distance difference between the vertical distance from the main signal end of the third touch electrode to the side edge line of the third touch electrode close to the fourth touch electrode and the vertical distance from the main signal end of the fourth touch electrode to the side edge line of the fourth touch electrode close to the third touch electrode is within a certain range;
the main signal end of the third touch electrode and the main signal end of the fourth touch electrode do not overlap in the column direction.
Optionally, the main signal end of the first touch electrode and the main signal end of the second touch electrode are symmetrical with respect to a gap between the first touch electrode and the second touch electrode.
Optionally, the display panel includes a plurality of electrode leads, and the electrode leads are electrically connected to the main signal ends of the touch electrodes through via holes.
Optionally, an auxiliary signal end is further disposed in each touch electrode, wherein a distance difference between a vertical distance from the auxiliary signal end of the first touch electrode to a side edge line of the first touch electrode close to the second touch electrode and a vertical distance from the auxiliary signal end of the second touch electrode to a side edge line of the second touch electrode close to the first touch electrode is within a certain range;
and the vertical distance between the auxiliary signal end of the third touch electrode and the side edge line of the third touch electrode close to the fourth touch electrode is within a certain range, the distance difference between the vertical distance between the auxiliary signal end of the fourth touch electrode and the side edge line of the fourth touch electrode close to the third touch electrode is within a certain range, the auxiliary signal end of the third touch electrode and the auxiliary signal end of the fourth touch electrode are not overlapped in the column direction, and the auxiliary signal end and the main signal end are not overlapped in the column direction.
Optionally, the auxiliary signal end of the first touch electrode and the auxiliary signal end of the second touch electrode are symmetrical with respect to a gap between the first touch electrode and the second touch electrode.
Optionally, the display panel includes a plurality of auxiliary electrode leads;
the auxiliary electrode lead corresponds to an auxiliary signal end of the touch electrode.
Optionally, the display panel is a liquid crystal display panel, wherein the plurality of touch electrodes are multiplexed as a common electrode of the display panel.
Optionally, the display panel is an organic light emitting display panel, wherein the plurality of touch electrodes are multiplexed as a cathode layer of the display panel.
Optionally, the display panel is a special-shaped display panel.
Correspondingly, the invention further provides a display device which comprises the display panel.
Compared with the prior art, the technical scheme provided by the invention at least has the following advantages:
the invention provides a display panel and a display device, wherein the display panel comprises a plurality of touch electrodes which are arranged in M rows by N columns, and a main signal end is arranged in each touch electrode; wherein, in the first touch electrode and the second touch electrode adjacent to each other in the row direction, the vertical distance from the main signal end of the first touch electrode to the side line of the first touch electrode close to the second touch electrode, the distance difference between the main signal end of the second touch electrode and the vertical distance between the side line of the second touch electrode close to the first touch electrode is in a certain range, by optimizing the range of the distance difference, the delay of signal transmission from the main signal end of the first touch electrode to the side line direction of the first touch electrode close to the second touch electrode can be ensured, the delay difference of the signal transmission from the main signal end of the second touch electrode to the direction of the side line of the second touch electrode close to the first touch electrode is within a certain range, so that the problem that the display effect of the display panel is influenced by the large delay difference of the transmission signals in the area on the opposite side of the first touch electrode and the second touch electrode is avoided.
And, in the third touch electrode and the fourth touch electrode adjacent to each other in the column direction, a difference between a vertical distance from a main signal end of the third touch electrode to a side edge line of the third touch electrode close to the fourth touch electrode and a vertical distance from a main signal end of the fourth touch electrode to a side edge line of the fourth touch electrode close to the third touch electrode is within a certain range, and by optimizing the range of the difference between the distances, a delay in transmitting a signal from the main signal end of the third touch electrode to the side edge line of the third touch electrode close to the fourth touch electrode and a delay in transmitting a signal from the main signal end of the fourth touch electrode to the side edge line of the fourth touch electrode close to the third touch electrode are within a certain range, thereby avoiding a problem that an area on the opposite side of the third touch electrode and the fourth touch electrode affects a display effect of the display panel due to a large delay difference in transmitting a signal, therefore, the problem of large delay difference of transmission signals of the areas on the opposite sides of the two adjacent touch electrodes in the row direction and the column direction is solved, and the display effect of the display panel is high.
In addition, the main signal end of the third touch electrode and the main signal end of the fourth touch electrode are arranged in a non-overlapping shape in the column direction, so that a plurality of electrode leads connected with the corresponding main signal ends respectively are prevented from crossing when extending in the column direction, no jumper wire for connecting the electrode leads and the main signal ends is required to be arranged, and the wiring quantity and difficulty are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a first touch electrode and a second touch electrode according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present application;
fig. 5 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background, the self-capacitance touch method may be: the transparent conducting layer used as a common (VCOM) electrode on the array substrate is divided into a plurality of blocks to be used as touch electrodes, then specific electrode wiring is utilized to be communicated with the touch electrodes through via holes, one end of the electrode wiring is connected to a driving integrated circuit, when a finger or a touch structure touches the touch display panel of the self-capacitance, fluctuation of capacitance values of the touch electrodes corresponding to corresponding touch positions can be caused, and the driving integrated circuit can determine the positions of touch points by detecting the fluctuation of the capacitance values, so that the touch function is finally realized. The display effect of the existing self-capacitance touch display panel is poor.
Based on this, the embodiment of the application provides a display panel and a display device, and the problem that the display effect of the existing display panel is poor is effectively solved. In order to achieve the above object, the technical solutions provided by the embodiments of the present application are described in detail below, specifically with reference to fig. 1 to 7.
Referring to fig. 1, a schematic structural diagram of a display panel provided in an embodiment of the present application is shown, where the display panel includes:
a plurality of touch electrodes 100 arranged in M rows by N columns, where M and N are integers not less than 2;
a main signal terminal 110 is arranged in each touch electrode 100;
in the row direction X, two adjacent touch electrodes 100 are a first touch electrode 101 and a second touch electrode 102, respectively, and a distance difference between a vertical distance a from a main signal end 110 of the first touch electrode 101 to a side edge of the first touch electrode 101 close to the second touch electrode 102 and a vertical distance b from the main signal end 110 of the second touch electrode 102 to a side edge of the second touch electrode 102 close to the first touch electrode 101 is within a certain range;
in the column direction Y, two adjacent touch electrodes 100 are a third touch electrode 103 and a fourth touch electrode 104, respectively, and a distance difference between a vertical distance c from a main signal end 110 of the third touch electrode 103 to a side edge of the third touch electrode 103 close to the fourth touch electrode 104 and a vertical distance d from the main signal end 110 of the fourth touch electrode 104 to a side edge of the fourth touch electrode 104 close to the third touch electrode 103 is within a certain range;
the main signal terminal 110 of the third touch electrode 103 and the main signal terminal 110 of the fourth touch electrode 104 do not overlap in the column direction Y. The directions of the row direction X and the column direction Y are different, and optionally, the row direction X and the column direction Y are perpendicular to each other.
It can be understood that, in the first touch electrode 101 and the second touch electrode 102 adjacent to each other in the row direction X, a distance difference between a vertical distance a from the main signal end 110 of the first touch electrode 101 to a side edge of the first touch electrode 101 close to the second touch electrode 102 and a vertical distance b from the main signal end 110 of the second touch electrode 102 to a side edge of the second touch electrode 102 close to the first touch electrode 101 is within a certain range, and by optimizing the range of the distance difference, a delay difference between a signal transmission from the main signal end 110 of the first touch electrode 101 to a side edge of the first touch electrode 101 close to the second touch electrode 102 and a signal transmission from the main signal end 110 of the second touch electrode 102 to a side edge of the second touch electrode 102 close to the first touch electrode 101 can be ensured within a certain range, the problem that the display effect of the display panel is influenced by the large delay difference of the transmission signals in the area on the opposite side of the first touch electrode 101 and the second touch electrode 102 is avoided;
and, in the third touch electrode 103 and the fourth touch electrode 104 adjacent to each other in the column direction Y, the difference between the vertical distance c from the main signal end 110 of the third touch electrode 103 to the side edge of the third touch electrode 103 close to the fourth touch electrode 104 and the vertical distance d from the main signal end 110 of the fourth touch electrode 104 to the side edge of the fourth touch electrode 104 close to the third touch electrode 103 is within a certain range, and by optimizing the range of the difference between the distances, the delay difference between the transmission of the touch signal from the main signal end 110 of the third touch electrode 103 to the side edge of the third touch electrode 103 close to the fourth touch electrode 104 and the transmission of the touch signal from the main signal end 110 of the fourth touch electrode 104 to the side edge of the fourth touch electrode 104 close to the third touch electrode 103 can be ensured within a certain range, and the area on the opposite side of the third touch electrode 103 and the fourth touch electrode 104 can be avoided, the problem that the display effect of the display panel is affected due to the fact that the delay difference of the transmission signals is large is solved, the problem that the delay difference of the transmission signals is large in the area of the opposite sides of the two adjacent touch electrodes in the row direction X and the column direction Y is solved, and the display effect of the display panel is high.
It should be noted that, because the types and sizes of the display panels are diversified (for example, the types and sizes of the display panels applied to mobile phones, tablet computers, smartwatches, and the like are different), the shapes of the touch electrodes are diversified, and the applicable scenes of the display panels are diversified, parameters such as the sizes of the touch electrodes on different display panels are different, and thus, the specific numerical range of the distance difference and the specific numerical range of the achieved delay difference are not limited in the present application. In an embodiment of the present application, a distance difference between the vertical distance a and the vertical distance b provided by the present application may be within 3mm (i.e., greater than or equal to zero and less than or equal to 3mm), and a distance difference between the vertical distance c and the vertical distance d provided by the present application may be within 3mm (i.e., greater than or equal to zero and less than or equal to 3 mm). In addition, in the row direction X, the main signal terminal 110 of the first touch electrode 101 and the main signal terminal 110 of the second touch electrode 101 may overlap; or, in the row direction X, the main signal end 110 of the first touch electrode 101 and the main signal end 110 of the second touch electrode 101 may not overlap, where when the main signal end 110 of the first touch electrode 101 and the main signal end 110 of the second touch electrode 101 are vertically projected on the same plane in the row direction X, a distance between a vertical projection of the main signal end 110 of the first touch electrode 101 and a vertical projection of the main signal end 110 of the second touch electrode 102 may be within 3mm (i.e., greater than or equal to zero and less than or equal to 3 mm). And in the column direction Y, the main signal ends 110 of the third touch electrodes 103 and the main signal ends 110 of the fourth touch electrodes 104 do not overlap, wherein when the main signal ends 110 of the third touch electrodes 103 and the main signal ends 110 of the fourth touch electrodes 104 are vertically projected on the same plane in the column direction Y, a distance between a vertical projection of the main signal ends 110 of the third touch electrodes 103 and a vertical projection of the main signal ends 110 of the fourth touch electrodes 104 may be within 3mm (i.e., greater than or equal to zero and less than or equal to 3 mm).
As shown in fig. 1, in order to apply a signal to the touch electrode 100 and transmit a touch electrode feedback signal, an electrode lead 120 connected to the main signal terminal 110 is required to be disposed, so that the touch electrode 110 is electrically connected to the electrode lead 120, and the electrode lead 120 is electrically connected to the driving ic, and further, a signal output by the driving ic and a signal feedback from the touch electrode 100 to the driving ic are applied to the touch electrode 100 through the electrode lead 120, and all the electrode leads 120 may be formed as a line extending along the column direction Y. In an embodiment of the present application, the display panel provided by the present application includes a plurality of electrode leads 120, the electrode leads 120 provided by the present application and the touch electrode 100 may be in different conductive layers, wherein the electrode leads 120 and the main signal terminal 110 of the touch electrode 100 may be electrically connected through a via. Therefore, in the embodiment of the present application, the main signal ends 110 of the third touch electrodes 103 and the main signal ends 110 of the fourth touch electrodes 104 are set to be non-overlapped in the column direction Y, that is, the main signal ends 110 of any two touch electrodes 100 in the same column are not overlapped in the column direction Y, so that the plurality of electrode leads 120 connected to the respective corresponding main signal ends 110 are not crossed when extending in the column direction Y, and no jumper wire or the like connecting the electrode leads 120 and the main signal ends 110 is required to be provided, thereby reducing the number and difficulty of wiring.
Referring to fig. 2, a schematic structural diagram of a first touch electrode and a second touch electrode provided in the present embodiment is shown, wherein a main signal terminal 110 of the first touch electrode 101 and a main signal terminal 110 of the second touch electrode 102 provided in the present embodiment are symmetrical with respect to a gap between the first touch electrode 101 and the second touch electrode 102.
It can be understood that, in the embodiment of the present disclosure, the main signal terminal 110 of the first touch electrode 101 and the main signal terminal 110 of the second touch electrode 102 are symmetrical with respect to the gap therebetween, and the materials of the first touch electrode 101 and the second touch electrode 102 may be the same, and further, at the opposite sides of the first touch electrode 101 and the second touch electrode 102, the delay of transmitting signals from the main signal terminal 110 of the first touch electrode 101 to the side line of the first touch electrode 101 is approximately the same as the delay of transmitting signals from the main signal terminal 110 of the second touch electrode 102 to the side line of the second touch electrode 102, so as to further improve the display effect of the display panel.
In an embodiment of the present application, as shown in fig. 1, the touch area of the display panel provided by the present application may be a rectangular touch area, wherein the touch electrodes 100 in the rectangular touch area may be all configured as rectangular touch electrodes. In addition, the display panel provided in the embodiment of the present application may also be a special-shaped display panel, wherein the touch area of the special-shaped display panel is a special-shaped touch area, and a portion of the touch electrodes in the special-shaped touch area are in a special-shaped structure along with the shape of the special-shaped touch area, as shown in fig. 3, which is a schematic structural diagram of another display panel provided in the embodiment of the present application, wherein the touch area of the display panel is a circular touch area, wherein the edge touch electrodes 210 located at the edges are in a special-shaped structure, and the inner touch electrodes 220 wrapped in the center by the edge touch electrodes 210 are all rectangular electrodes.
The edge touch electrodes 210 and the inner touch electrodes 220 are arranged in M rows by N columns, and no matter the edge touch electrodes 210 located at the edge or the inner touch electrodes 220 located at the center can be arranged in the first touch electrodes 101 and the second touch electrodes 102 adjacent to each other in the row direction X, the vertical distance between the main signal end 110 of the first touch electrode 101 and the side line of the first touch electrode 101 close to the second touch electrode 102 and the vertical distance between the main signal end 110 of the second touch electrode 102 and the side line of the second touch electrode 102 close to the first touch electrode 101 are within a certain range, and by optimizing the range of the distance difference, the delay of signal transmission from the main signal end 110 of the first touch electrode 101 to the side line of the first touch electrode 101 close to the second touch electrode 102 and the signal transmission from the main signal end 110 of the second touch electrode 102 to the side line of the second touch electrode 102 close to the first touch electrode 101 can be ensured The delay difference of the signal delay is within a certain range, so that the problem that the display effect of the display panel is influenced due to the large delay difference of the transmission signals in the area on the opposite side of the first touch electrode 101 and the second touch electrode 102 is avoided;
and, in the third touch electrode 103 and the fourth touch electrode 104 adjacent to each other in the column direction Y, the difference between the vertical distance from the main signal end 110 of the third touch electrode 103 to the side line of the third touch electrode 103 close to the fourth touch electrode 104 and the vertical distance from the main signal end 110 of the fourth touch electrode 104 to the side line of the fourth touch electrode 104 close to the third touch electrode 103 is within a certain range, and by optimizing the range of the distance difference, the delay difference between the signal transmission from the main signal end 110 of the third touch electrode 103 to the side line of the third touch electrode 103 close to the fourth touch electrode 104 and the signal transmission from the main signal end 110 of the fourth touch electrode 104 to the side line of the fourth touch electrode 104 close to the third touch electrode 103 can be ensured within a certain range, thereby avoiding the area on the opposite side of the third touch electrode 103 and the fourth touch electrode 104, the problem that the display effect of the display panel is affected due to the fact that the delay difference of the transmission signals is large is solved, the problem that the delay difference of the transmission signals is large in the area of the opposite sides of the two adjacent touch electrodes in the row direction X and the column direction Y is solved, and the display effect of the display panel is high.
It should be noted that the touch area of the display panel provided in the embodiments of the present application is not limited to the rectangular touch area and the circular touch area provided above, and may also be a touch area with other shapes, which is not limited in this application.
Further, in order to prolong the service life of the display panel, the display panel provided by the embodiment of the application further comprises a repair circuit. Referring to fig. 4, a schematic structural diagram of another display panel provided in the present embodiment is shown, wherein each of the touch electrodes 100 is further provided with an auxiliary signal end 130, wherein a difference between a vertical distance from the auxiliary signal end 130 of the first touch electrode 101 to a side line of the first touch electrode 101 close to the second touch electrode 102 and a vertical distance from the auxiliary signal end 130 of the second touch electrode 102 to a side line of the second touch electrode 102 close to the first touch electrode 101 is within a certain range;
and a vertical distance between the auxiliary signal terminal 130 of the third touch electrode 103 and a side line of the third touch electrode 103 close to the fourth touch electrode 104 is within a certain range, and a distance difference between the vertical distance between the auxiliary signal terminal 130 of the fourth touch electrode 104 and a side line of the fourth touch electrode 104 close to the third touch electrode 103 is within a certain range, and the auxiliary signal terminals 130 of the third touch electrode 103 and the auxiliary signal terminals 130 of the fourth touch electrode 104 are not overlapped in the column direction Y, that is, the auxiliary signal terminals 130 of the touch electrodes in the same column are not overlapped in the column direction Y, and the auxiliary signal terminals 130 and the main signal terminals 110 are not overlapped in the column direction.
In an embodiment of the present application, the auxiliary signal terminal 110 of the first touch electrode 101 and the auxiliary signal terminal 110 of the second touch electrode 102 provided in the present application are symmetrical with respect to a gap between the first touch electrode 101 and the second touch electrode 102.
It should be noted that, in the embodiment of the present application, a distance difference between a vertical distance from the auxiliary signal terminal 130 of the first touch electrode 101 to a side edge line of the first touch electrode 101 and a vertical distance from the auxiliary signal terminal 130 of the second touch electrode 102 to a side edge line of the second touch electrode 102 may be within 3mm (i.e., greater than or equal to zero and less than or equal to 3mm), and a distance difference between a vertical distance from the auxiliary signal terminal 130 of the third touch electrode 103 to a side edge line of the third touch electrode 103 and a vertical distance from the auxiliary signal terminal 130 of the fourth touch electrode 104 to a side edge line of the fourth touch electrode 104 may be within 3mm (i.e., greater than or equal to zero and less than or equal to 3 mm).
It can be understood that the display panel provided by the embodiment of the present application includes a plurality of auxiliary electrode leads 140; the auxiliary electrode leads 140 correspond to the auxiliary signal terminals 130 of the touch electrode 100, and the auxiliary electrode leads 140 correspond to the auxiliary signal terminals 130 one to one. When the electrode lead 120 electrically connected to the touch electrode 100 is broken or abnormal, a signal and a feedback signal for feeding back the touch electrode 100 can be applied to the touch electrode 100 through the auxiliary electrode lead 140 electrically connected to the auxiliary signal terminal 130. Specifically, the auxiliary electrode lead 140 provided in the embodiment of the present application is electrically connected to the driving integrated circuit, and the auxiliary electrode lead 140 and the auxiliary signal terminal 130 of the touch electrode 100 are in an unconnected state before being repaired, and when the auxiliary electrode lead 140 and the touch electrode 100 need to be electrically connected, the auxiliary electrode lead 140 and the auxiliary signal terminal 130 are connected; alternatively, the auxiliary electrode lead 140 provided in the embodiment of the present application is electrically connected to the driving integrated circuit, and the auxiliary electrode lead 140 and the auxiliary signal terminal 130 of the touch electrode 100 are in a connected state before being repaired, and when the auxiliary electrode lead 140 is required to be electrically connected to the touch electrode 100, only the control method of the driving integrated circuit needs to be changed to apply a signal to the auxiliary electrode lead 140 and receive a feedback signal of the auxiliary electrode lead 140, which is not limited in this application.
It should be noted that, in the line repairing structure shown in fig. 4 of the present application, when an electrode lead is open-circuited or abnormal, all electrode leads communicated with the touch electrodes of the display panel may be replaced by auxiliary electrode leads, or a touch electrode corresponding to an abnormal electrode lead and an electrode lead correspondingly communicated with a touch electrode adjacent to the touch electrode are replaced by auxiliary electrode leads, or only an electrode lead with an abnormal electrode lead is replaced by an auxiliary electrode lead.
In an embodiment of the present application, the display panel provided by the present application may be a liquid crystal display panel, wherein the plurality of touch electrodes are multiplexed as a common electrode of the display panel.
Referring to fig. 5, a schematic structural diagram of a liquid crystal display panel provided in an embodiment of the present application is shown, where the liquid crystal display panel includes:
the color film substrate 1000 and the array substrate are oppositely arranged;
and a liquid crystal layer 3000 disposed between the color film substrate 1000 and the array substrate.
Wherein, array substrate includes: substrate 2001:
a thin film transistor array layer on the substrate 2001, wherein the thin film transistor array layer may include: a gate layer on the substrate 2001, which can be used to form a gate line (not shown) and a gate electrode 20021 of a thin film transistor; a gate insulating layer 20022 on the side of the gate layer facing away from the substrate 2001; a semiconductor layer on the side of the gate insulating layer 20022 facing away from the substrate 2001, which can be used to form an active region 20023 of a thin film transistor; a source drain layer located on a side of the semiconductor layer away from the substrate 2001, where the source drain layer may be used to form a data line (not shown) and a source 20024 and a drain 20025 of the thin film transistor;
a planarization layer 2003 on the side of the thin film transistor array layer facing away from the substrate 2001;
a pixel electrode 2004 on a side of the planarization layer 2003 facing away from the substrate 2001, the pixel electrode 2004 being connectable to a thin film transistor source 20024 or drain 20025 via a via (not shown) in the planarization layer 2003;
an insulating layer 2005 provided on a side of the pixel electrode 2004 facing away from the substrate 2001;
and a common electrode located on a side of the insulating layer 2005 away from the substrate 2001, wherein the common electrode can be divided into a plurality of touch electrodes 100, the touch electrodes 100 are self-capacitance touch electrodes, both the received signal and the feedback signal are completed by the self-capacitance touch electrodes, and when the display panel is touched, the touch position is sensed by capacitance change on the self-capacitance touch electrodes.
In the liquid crystal display panel provided in the embodiment of the present application, the positional relationship between the pixel electrode and the common electrode is not particularly limited, and the common electrode may be located on the side of the pixel electrode 2004 away from the planarization layer 2003 as shown in fig. 5; alternatively, the positions of the common electrode and the pixel electrode may be interchanged, i.e., the common electrode may also be located between the planarization layer and the pixel electrode.
In an embodiment of the present application, the display panel provided by the present application may also be an organic light emitting display panel, wherein the plurality of touch electrodes are multiplexed as a cathode layer of the display panel.
Referring to fig. 6, a schematic structural diagram of an organic light emitting display panel provided in an embodiment of the present application is shown, where the organic light emitting display panel includes:
a substrate 4001;
a thin film transistor array layer on the substrate 4001, wherein the thin film transistor array layer may include: a gate layer over the substrate 4001, the gate layer being used to form a gate line (not shown) and a gate electrode 40021 of a thin film transistor; a gate insulating layer 40022 on a side of the gate layer facing away from the substrate 4001; a semiconductor layer located on a side of the gate insulating layer 40022 opposite to the substrate 4001, the semiconductor layer being used to form an active region 40023 of a thin film transistor; the source-drain layer is positioned on the side, away from the substrate 4001, of the semiconductor layer and can be used for forming a data line (not shown) and a source electrode 40024 and a drain electrode 40025 of a thin film transistor;
the planarization layer 4003 is positioned on one side of the thin film transistor array layer, which is far away from the substrate 4001;
an anode layer on the side of the planarization layer 4003 away from the substrate 4001, wherein the anode layer may include a plurality of anodes 4004, and the anodes 4004 may be connected to the source electrode 40024 or the drain electrode 40025 of the thin film transistor through via holes (not shown) in the planarization layer 4003;
an organic light-emitting layer 4005 on the side of the anode 4004 facing away from the substrate 4001;
and a cathode layer located on a side of the organic light emitting layer 4005 away from the substrate 4001, wherein the cathode layer is multiplexed and divided into a plurality of touch electrodes 100, the touch electrodes 100 are self-capacitance touch electrodes, both receiving signals and feedback signals are completed by the self-capacitance touch electrodes, and when the display panel is touched, the sensing of a touch position is realized through capacitance change on the self-capacitance touch electrodes.
In an embodiment of the present invention, the divided touch electrode of the cathode layer may correspond to one organic light emitting layer, or the divided touch electrode may correspond to a plurality of organic light emitting layers, which is not limited in this application.
It should be noted that, in the embodiments shown in fig. 5 and fig. 6, the thin film transistors are bottom gate thin film transistors, and the application is not particularly limited thereto, and the thin film transistors may also be top gate thin film transistors, that is, the thin film transistor array layer includes:
a semiconductor layer on the substrate, the semiconductor layer being used to form an active region of the thin film transistor;
the gate insulating layer is positioned on one side, away from the substrate, of the semiconductor layer;
the grid electrode layer is positioned on one side of the grid insulating layer, which is far away from the substrate, and can be used for forming a grid electrode and a grid electrode of the thin film transistor;
the interlayer insulating layer is positioned on one side of the gate electrode layer, which is far away from the substrate;
and the source and drain layers are positioned on one side of the interlayer insulating layer, which is far away from the substrate, and can be used for forming a data line and a source electrode and a drain electrode of the thin film transistor.
Correspondingly, an embodiment of the present application further provides a display device, where the display device includes the display panel provided in any one of the above embodiments.
Referring to fig. 7, a schematic structural diagram of a display device according to an embodiment of the present disclosure is shown, where the display device is a liquid crystal display device, and includes:
the display panel 5001 provided in any of the above embodiments;
and a backlight module 5002 for providing a light source for the display panel 5001.
In an embodiment of the present application, the display device provided in the present application may also be an organic light emitting display device, and the like, and the present application is not limited specifically. Moreover, the display device provided by the application can be a mobile phone, a smart watch, a tablet computer and the like, and the application is not particularly limited.
The embodiment of the application provides a display panel and a display device, wherein the display panel comprises a plurality of touch electrodes which are arranged in M rows by N columns, and a main signal end is arranged in each touch electrode; wherein, in the first touch electrode and the second touch electrode adjacent to each other in the row direction, the vertical distance from the main signal end of the first touch electrode to the side line of the first touch electrode close to the second touch electrode, the distance difference between the main signal end of the second touch electrode and the vertical distance between the side line of the second touch electrode close to the first touch electrode is in a certain range, by optimizing the range of the distance difference, the delay of signal transmission from the main signal end of the first touch electrode to the side line direction of the first touch electrode close to the second touch electrode can be ensured, the delay difference of the signal transmission from the main signal end of the second touch electrode to the direction of the side line of the second touch electrode close to the first touch electrode is within a certain range, so that the problem that the display effect of the display panel is influenced by the large delay difference of the transmission signals in the area on the opposite side of the first touch electrode and the second touch electrode is avoided.
And, in the third touch electrode and the fourth touch electrode adjacent to each other in the column direction, a difference between a vertical distance from a main signal end of the third touch electrode to a side edge line of the third touch electrode close to the fourth touch electrode and a vertical distance from a main signal end of the fourth touch electrode to a side edge line of the fourth touch electrode close to the third touch electrode is within a certain range, and by optimizing the range of the difference between the distances, a delay in transmitting a signal from the main signal end of the third touch electrode to the side edge line of the third touch electrode close to the fourth touch electrode and a delay in transmitting a signal from the main signal end of the fourth touch electrode to the side edge line of the fourth touch electrode close to the third touch electrode are within a certain range, thereby avoiding a problem that an area on the opposite side of the third touch electrode and the fourth touch electrode affects a display effect of the display panel due to a large delay difference in transmitting a signal, therefore, the problem of large delay difference of transmission signals of the areas on the opposite sides of the two adjacent touch electrodes in the row direction and the column direction is solved, and the display effect of the display panel is high.
In addition, the main signal end of the third touch electrode and the main signal end of the fourth touch electrode are arranged in a non-overlapping shape in the column direction, so that a plurality of electrode leads connected with the corresponding main signal ends respectively are prevented from crossing when extending in the column direction, no jumper wire for connecting the electrode leads and the main signal ends is required to be arranged, and the wiring quantity and difficulty are reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A display panel, comprising:
the touch control electrodes are arranged in M rows by N columns, and M and N are integers not less than 2;
a main signal end is arranged in each touch electrode;
in the row direction, two adjacent touch electrodes are respectively a first touch electrode and a second touch electrode, and the distance difference between the vertical distance from the main signal end of the first touch electrode to the side edge line of the first touch electrode close to the second touch electrode and the vertical distance from the main signal end of the second touch electrode to the side edge line of the second touch electrode close to the first touch electrode is within 3 mm;
in the column direction, two adjacent touch electrodes are respectively a third touch electrode and a fourth touch electrode, and the distance difference between the vertical distance from the main signal end of the third touch electrode to the side edge line of the third touch electrode close to the fourth touch electrode and the vertical distance from the main signal end of the fourth touch electrode to the side edge line of the fourth touch electrode close to the third touch electrode is within 3 mm;
the main signal end of the third touch electrode and the main signal end of the fourth touch electrode do not overlap in the column direction.
2. The display panel according to claim 1, wherein the main signal terminal of the first touch electrode and the main signal terminal of the second touch electrode are symmetrical with respect to a gap between the first touch electrode and the second touch electrode.
3. The display panel according to claim 1, wherein the display panel comprises a plurality of electrode leads, and the electrode leads are electrically connected with the main signal ends of the touch electrodes through vias.
4. The display panel according to claim 1, wherein each of the touch electrodes further has an auxiliary signal terminal disposed therein, wherein a difference between a vertical distance from the auxiliary signal terminal of the first touch electrode to a side edge of the first touch electrode close to the second touch electrode and a vertical distance from the auxiliary signal terminal of the second touch electrode to a side edge of the second touch electrode close to the first touch electrode is within 3 mm;
and the vertical distance between the auxiliary signal end of the third touch electrode and the side edge line of the third touch electrode close to the fourth touch electrode is within 3mm of the vertical distance between the auxiliary signal end of the fourth touch electrode and the side edge line of the fourth touch electrode close to the third touch electrode, the auxiliary signal end of the third touch electrode and the auxiliary signal end of the fourth touch electrode are not overlapped in the column direction, and the auxiliary signal end and the main signal end are not overlapped in the column direction.
5. The display panel according to claim 4, wherein the auxiliary signal terminal of the first touch electrode and the auxiliary signal terminal of the second touch electrode are symmetrical with respect to a gap between the first touch electrode and the second touch electrode.
6. The display panel according to claim 4, wherein the display panel comprises a plurality of auxiliary electrode leads;
the auxiliary electrode lead corresponds to an auxiliary signal end of the touch electrode.
7. The display panel according to claim 1, wherein the display panel is a liquid crystal display panel, and wherein the plurality of touch electrodes are multiplexed as a common electrode of the display panel.
8. The display panel according to claim 1, wherein the display panel is an organic light emitting display panel, and wherein the plurality of touch electrodes are multiplexed as a cathode layer of the display panel.
9. The display panel according to claim 1, wherein the display panel is a shaped display panel.
10. A display device comprising the display panel according to any one of claims 1 to 9.
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