CN114253430B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN114253430B CN114253430B CN202111481090.7A CN202111481090A CN114253430B CN 114253430 B CN114253430 B CN 114253430B CN 202111481090 A CN202111481090 A CN 202111481090A CN 114253430 B CN114253430 B CN 114253430B
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- 239000002184 metal Substances 0.000 claims abstract description 57
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 239000003990 capacitor Substances 0.000 claims description 65
- 239000004065 semiconductor Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 15
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a display panel and a display device, which relate to the technical field of display, wherein the display panel comprises: the substrate comprises a substrate base plate and a first metal layer positioned on one side of the substrate base plate; the touch control lines and the data lines are positioned on the first metal layer; the touch control device comprises at least one load compensation unit, at least one touch control line and a control unit, wherein the load compensation unit is electrically connected with the touch control line and used for increasing the load of the touch control line electrically connected with the load compensation unit. The invention is beneficial to improving the display effect.
Description
Technical Field
The present invention relates to the field of display technologies, and more particularly, to a display panel and a display device.
Background
Currently, touch display panels generally have a touch sensing function, and can identify touch position information. Generally, a touch display device is provided with touch electrodes arranged in a matrix, where the touch electrodes can be used as touch electrodes in a touch stage and can be used as display common electrodes for transmitting constant signals in a display stage. When the conventional touch display panel is used for heavy-duty display, display abnormality easily occurs, and the display effect is affected.
Therefore, how to improve the display effect of the touch display panel is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a display panel and a display device, which are beneficial to improving the display effect.
The present invention provides a display panel, comprising: the substrate comprises a substrate base plate and a first metal layer positioned on one side of the substrate base plate; the touch control lines and the data lines are positioned on the first metal layer; the touch control device comprises at least one load compensation unit, at least one touch control line and a control unit, wherein the load compensation unit is electrically connected with the touch control line and used for increasing the load of the touch control line electrically connected with the load compensation unit.
Based on the same thought, the invention also provides a display device which comprises the display panel.
Compared with the prior art, the display panel and the display device provided by the invention have the advantages that at least the following effects are realized:
the display panel provided by the invention comprises a plurality of touch lines and a plurality of data lines, wherein the touch lines are used for providing signals for touch electrodes electrically connected with the touch lines, and the data lines are used for providing signals for pixels electrically connected with the data lines. The touch control line and the data line are both positioned on the first metal layer, namely, the touch control line and the data line can be formed through the same mask process, so that the process and the production cost are effectively reduced. When the display panel is in a display stage, the data lines provide signals for pixels electrically connected with the data lines, at the moment, the touch control lines are easy to be coupled by the data lines, so that the signals on the touch control lines are unstable, and the signals on the touch control electrodes electrically connected with the touch control lines are unstable, so that the display panel is easy to display abnormal when the display panel is in heavy load display, and the display effect is affected. In the display panel provided by the invention, when the touch control line and the data line are arranged on the same layer, the touch control line is more easily coupled with the data line. And when touch control line and data line are with the layer setting for at least one deck planarization layer of interval between touch control line and the touch control electrode, for inorganic insulating layer, planarization layer is great along the thickness on the plane that the perpendicular to display panel is located, makes the extraction capacitance between touch control line and the touch control electrode less, is unfavorable for stabilizing the signal on the touch control line, makes display panel appear showing when the heavy load display frame unusual condition more seriously. The display panel provided by the invention further comprises at least one load compensation unit, wherein the at least one load compensation unit is electrically connected with one touch line, the load compensation unit is used for increasing the load of the touch line electrically connected with the load compensation unit, and the coupling of the data line to the touch line is reduced by increasing the load on the touch line, so that the signal on the touch line is stabilized, and the display effect of the display panel is effectively improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the technical effects described above at the same time.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic plan view of a display panel according to the present invention;
FIG. 2 is a cross-sectional view of the display panel of FIG. 1 taken along line A-A';
FIG. 3 is a schematic plan view of another display panel according to the present invention;
FIG. 4 is an enlarged schematic view of the portion B of the display panel shown in FIG. 3;
FIG. 5 is a cross-sectional view of the display panel of FIG. 4 along line C-C';
FIG. 6 is another enlarged schematic view of the portion B of the display panel shown in FIG. 3;
FIG. 7 is a cross-sectional view of the display panel of FIG. 6 along E-E';
FIG. 8 is a further enlarged schematic view of the portion B of the display panel shown in FIG. 3;
FIG. 9 is a cross-sectional view of the display panel of FIG. 8 along the line F-F';
FIG. 10 is a schematic plan view of a display panel according to another embodiment of the present invention;
FIG. 11 is an enlarged schematic view of the G portion of the display panel shown in FIG. 10;
fig. 12 is a schematic plan view of a display device according to the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Fig. 1 is a schematic plan view of a display panel according to the present invention, fig. 2 is a cross-sectional view along A-A' of the display panel shown in fig. 1, and referring to fig. 1 and 2, a display panel according to the present embodiment includes a substrate 10 and a first metal layer 20 disposed on one side of the substrate 10. The substrate 10 may be a rigid substrate or a flexible substrate. When the substrate 10 is a rigid substrate, the substrate 10 may be a glass substrate. When the substrate 10 is a flexible substrate, the substrate 10 may be a Polyimide (PI) substrate. The first metal layer 20 is formed on one side of the substrate base plate 10.
The display panel further includes a plurality of touch lines TP for providing signals to the touch electrodes 40 electrically connected thereto, and a plurality of data lines D for providing signals to pixels (not shown) electrically connected thereto. The touch control lines TP and the data lines D are both located on the first metal layer 20, that is, the touch control lines TP and the data lines D can be formed through the same mask process, so that the process is effectively reduced, and the production cost is reduced.
When the display panel is in the display stage, the data line D provides signals to the pixels electrically connected with the data line D, and at this time, the touch control line TP is easy to be coupled by the data line D, so that the signals on the touch control line TP are unstable, and the signals on the touch control electrode 40 electrically connected with the touch control line TP are unstable, so that when the display panel is in heavy-load display, abnormal display is easy to occur, and the display effect is affected.
In the prior art, in a display panel, a planarization layer is generally disposed on a side of a data line far away from a substrate, and then a touch line, an inorganic insulating layer and a touch electrode are sequentially disposed on a side of the planarization layer far away from the data line. In general, the planarization layer is made of an organic material, and the thickness of the planarization layer in a direction perpendicular to the plane of the substrate is greater than the thickness of the inorganic insulating layer in a direction perpendicular to the plane of the substrate.
According to the display panel provided by the embodiment, when the touch control line TP and the data line D are arranged in the same layer, the touch control line TP is more easily coupled with the data line D. And when the touch control line TP and the data line D are arranged in the same layer, at least one planarization layer PLN is spaced between the touch control line TP and the touch control electrode 40, and compared with the inorganic insulating layer, the thickness of the planarization layer PLN on the plane perpendicular to the display panel is larger, so that the extraction capacitance between the touch control line TP and the touch control electrode 40 is smaller, which is not beneficial to stabilizing the signal on the touch control line TP, and the display panel is more serious in abnormal display when the display panel is in heavy load display.
The display panel provided by the embodiment further includes at least one load compensation unit 30, where the at least one load compensation unit 30 is electrically connected to one touch line TP, the load compensation unit 30 is configured to increase a load of the touch line TP electrically connected to the load compensation unit, and the load on the touch line TP is increased to facilitate reducing the coupling of the data line D to the touch line TP, thereby facilitating stabilizing signals on the touch line TP, and effectively improving a display effect of the display panel.
It should be noted that, in fig. 1, each touch line TP is exemplarily shown to be electrically connected to one load compensation unit 30, and in other embodiments of the present invention, the load compensation units 30 may be disposed on the corresponding touch lines TP according to actual production requirements, which is not described herein again.
It should be noted that, in fig. 1, the display panel is exemplarily shown as a self-capacitive touch display panel, and in other embodiments of the present invention, the display panel may also be a mutual capacitive touch display panel, which is not described herein.
It should be noted that the display panel provided by the present invention may be a liquid crystal display panel, an organic light emitting display panel, or other types of display panels.
With continued reference to fig. 1, in some alternative embodiments, the display panel includes a display area AA and a non-display area NA surrounding the display area AA, where the display area AA is used for display and the non-display area NA is not used for display, and the non-display area NA may be configured with circuit elements, traces, and the like.
The load compensation unit 30 may be located in the non-display area NA, so that the space of the non-display area NA can be fully facilitated without affecting the display effect of the display area AA.
Alternatively, the load compensation unit 30 may be located in the non-display area NA, between the display area AA and the multiplexing circuit. It should be noted that, the load compensation unit 30 may be located at a side of the display area AA close to the driving chip, and the load compensation unit 30 may also be located at a side of the display area AA far from the driving chip, and of course, the load compensation unit 30 may also be located at other positions of the non-display area NA, which is not described herein.
Fig. 3 is a schematic plan view of another display panel provided by the present invention, fig. 4 is an enlarged schematic plan view of a portion B of the display panel shown in fig. 3, fig. 5 is a cross-sectional view of the display panel shown in fig. 4 along a line C-C', and referring to fig. 3-5, in some alternative embodiments, the load compensation unit 30 includes at least a first compensation capacitor 31, and the load of the touch line TP electrically connected to the first compensation capacitor 31 can be increased.
Specifically, the touch line TP includes a first trace portion TP10, the first trace portion TP10 is a first electrode plate 311 of the first compensation capacitor 31, along a direction perpendicular to a plane of the substrate 10, a second electrode plate 312 of the first compensation capacitor 31 is at least partially overlapped with the first trace portion TP10, the second electrode plate 312 of the first compensation capacitor 31 is insulated from the first trace portion TP10, the second electrode plate 312 of the first compensation capacitor 31 is electrically connected with the fixed potential line 50, i.e. a fixed potential is provided to the second electrode plate 312 of the first compensation capacitor 31 through the fixed potential line 50, the first trace portion TP10 of the touch line TP is multiplexed into the first electrode plate 311 of the first compensation capacitor 31, and in the direction perpendicular to the plane of the substrate 10, the second electrode plate 312 of the first compensation capacitor 31 and the first trace portion TP10 overlapped with each other form the first compensation capacitor 31, so that a load of the touch line TP electrically connected with the first compensation capacitor 31 can be increased through the first compensation capacitor 31.
Referring to fig. 3 and 4, in some alternative embodiments, the touch line TP extends along a first direction X, the touch line TP further includes a second trace portion TP20, and a width of the first trace portion TP10 is greater than a width of the second trace portion TP20 along a second direction Y, wherein the first direction X and the second direction Y intersect. Optionally, the first direction X and the second direction Y are perpendicular. The width of the first routing portion TP10 in the second direction Y of the touch wire TP is larger, and since the first routing portion TP10 of the touch wire TP is at least multiplexed into the first polar plate 311 of the first compensation capacitor 31, by increasing the width of the first routing portion TP10 in the touch wire TP in the second direction Y, correspondingly, the overlapping area between the second polar plate 312 of the first compensation capacitor 31 and the first routing portion TP10 in the direction perpendicular to the plane of the substrate 10 can be increased, so that the capacitance of the first compensation capacitor 31 is effectively increased, that is, the load of the load compensation unit 30 is effectively increased, so that the load of the touch wire TP electrically connected with the load compensation unit is increased, the coupling of the data wire D to the touch wire TP is reduced, the signal on the touch wire TP is stabilized, and the display effect of the display panel is effectively improved.
Optionally, the length of the first trace portion TP10 in the touch line TP in the first direction X may be increased, and correspondingly, the overlapping area of the second polar plate 312 of the first compensation capacitor 31 and the first trace portion TP10 in the direction perpendicular to the plane where the substrate 10 is located may also be increased, so as to effectively increase the capacitance of the first compensation capacitor 31, that is, effectively increase the load of the load compensation unit 30, thereby increasing the load of the touch line TP electrically connected therewith, and being beneficial to reducing the coupling of the data line D to the touch line TP, thereby being beneficial to stabilizing the signal on the touch line TP and effectively improving the display effect of the display panel.
With continued reference to fig. 3-5, in some alternative embodiments, the non-display area NA further includes a common signal line VTCOMA, which is multiplexed into the fixed potential line 50, without providing additional signal lines to provide signals to the second plate 312 of the first compensation capacitor 31, which is advantageous for saving space in the non-display area NA and for reducing production costs.
The common signal line VTCOMA in the non-display area NA supplies a common signal to the relevant signal line located in the display area AA through the switching device when the display panel is in the display stage. When the display panel is in the display stage, the signal transmitted by the touch control line TP to the touch control electrode 40 tends to be the same as the common signal, and the common signal line VTCOMA is multiplexed into the fixed potential line 50, so that the signal on the touch control line TP approaches the target voltage while the load of the touch control line TP electrically connected with the first compensation capacitor 31 is increased, and the influence of the overhigh voltage of the signal on the touch control line TP on the display panel is avoided.
With continued reference to fig. 3-5, in some alternative embodiments, the display panel further includes a second metal layer 60, the second metal layer 60 being on the same side of the substrate base 10 as the first metal layer 20, and the second metal layer 60 being insulated from the first metal layer 20.
It should be understood that fig. 4 and 5 exemplarily show that the second metal layer 60 is located on a side of the first metal layer 20 away from the substrate 10, and in other embodiments of the present invention, the first metal layer 20 may be located on a side of the second metal layer 60 away from the substrate 10, which is not limited in this respect, and only needs to be that the second metal layer 60 is insulated from the first metal layer 20.
The second metal layer 60 is insulated from the first metal layer 20, and the first plate 311 of the first compensation capacitor 31 is located on the first metal layer 20, so that the second plate 312 of the first compensation capacitor 31 may be located on the second metal layer 60, and thus the first compensation capacitor 31 may be formed between the first plate 311 of the first compensation capacitor 31 and the second plate 312 of the first compensation capacitor 31, which are insulated from each other.
The common signal line VTCOMA is also located on the second metal layer 60, that is, the common signal line VTCOMA and the second plate 312 of the first compensation capacitor 31 are disposed on the same layer, so that the common signal line VTCOMA and the second plate 312 of the first compensation capacitor 31 are electrically connected conveniently, and the common signal line VTCOMA and the second plate 312 of the first compensation capacitor 31 can be formed through the same mask process, thereby effectively reducing the process procedure and the production cost.
Fig. 6 is another enlarged schematic view of a portion B of the display panel shown in fig. 3, fig. 7 is a cross-sectional view of the display panel shown in fig. 6 along the line E-E', and referring to fig. 3, 6 and 7, in some alternative embodiments, the display panel further includes a second metal layer 60 and a semiconductor layer 70, the second metal layer 60, the semiconductor layer 70 and the first metal layer 20 are located on the same side of the substrate 10, and any two of the second metal layer 60, the semiconductor layer 70 and the first metal layer 20 are insulated.
It should be understood that fig. 6 and 7 exemplarily illustrate that the first metal layer 20 is located on a side of the semiconductor layer 70 away from the substrate 10, and the second metal layer 60 is located on a side of the first metal layer 20 away from the substrate 10, and that in other embodiments of the present invention, the second metal layer 60, the semiconductor layer 70 and the first metal layer 20 may be arranged in other manners, which are not limited by the present invention, and only need to satisfy insulation between any two of the second metal layer 60, the semiconductor layer 70 and the first metal layer 20.
The second plate 312 of the first compensation capacitor 31 is located on the semiconductor layer 70, the semiconductor layer 70 is insulated from the first metal layer 20, and the first plate 311 of the first compensation capacitor 31 is located on the first metal layer 20, so that the second plate 312 of the first compensation capacitor 31 may be located on the semiconductor layer 70, and thus the first compensation capacitor 31 may be formed between the first plate 311 of the first compensation capacitor 31 and the second plate 312 of the first compensation capacitor 31, which are insulated from each other.
Optionally, the second plate 312 of the first compensation capacitor 31 and the semiconductor component of the thin film transistor in the display panel may be formed by the same mask process, so as to effectively reduce the process and production cost. Alternatively, the semiconductor layer 70 may be a polysilicon layer.
In some alternative embodiments, the common signal line VTCOMA is located on the second metal layer 60, and the second plate 312 of the first compensation capacitor 31 and the common signal line VTCOMA may be electrically connected through the via S.
Fig. 8 is a further enlarged schematic diagram of the portion B of the display panel shown in fig. 3, and fig. 9 is a cross-sectional view of the display panel shown in fig. 8 along the line F-F', referring to fig. 3, 8 and 9, in some alternative embodiments, the load compensation unit 30 further includes a second compensation capacitor 32, and the load of the touch line TP electrically connected thereto can be further increased by the second compensation capacitor 32.
Specifically, the first routing portion TP10 is multiplexed into the first electrode plate 311 of the first compensation capacitor 31 and also multiplexed into the first electrode plate 321 of the second compensation capacitor 32, so that the arrangement of a film layer in the display panel is effectively reduced, the process is effectively reduced, and the production cost is reduced.
The second plate 322 of the second compensation capacitor 32 at least partially overlaps the first routing portion TP10 along the direction perpendicular to the plane of the substrate 10, and the second plate 322 of the second compensation capacitor 32 is insulated from the first routing portion TP10, the second plate 322 of the second compensation capacitor 32 is electrically connected to the common signal line VTCOMA, and in the direction perpendicular to the plane of the substrate 10, the second plate 322 of the second compensation capacitor 32 and the first routing portion TP10 overlapped form the second compensation capacitor 32, and the load of the touch control line TP electrically connected thereto can be further increased by the second compensation capacitor 32.
The second electrode plate 322 of the second compensation capacitor 32 is located on the second metal layer 60, the common signal line VTCOMA is also located on the second metal layer 60, that is, the common signal line VTCOMA and the second electrode plate 322 of the second compensation capacitor 32 are arranged in the same layer, so that the common signal line VTCOMA and the second electrode plate 322 of the second compensation capacitor 32 are electrically connected conveniently, and the common signal line VTCOMA and the second electrode plate 322 of the second compensation capacitor 32 can be formed through the same mask process, so that the process procedure is effectively reduced, and the production cost is reduced.
Fig. 10 is a schematic plan view of another display panel provided by the present invention, fig. 11 is an enlarged schematic plan view of a G portion of the display panel shown in fig. 10, and referring to fig. 10 and 11, in some alternative embodiments, the display area AA further includes a low-potential signal line VGL, the low-potential signal line VGL extends to the non-display area NA, the low-potential signal line VGL is multiplexed into a fixed potential line 50, and no signal line is required to be provided to the second plate 312 of the first compensation capacitor 31 to provide signals, so that the difficulty of wiring the display panel is reduced and the production cost is reduced.
The low potential signal line VGL is used for supplying a low potential signal to the pixel circuit when the display panel is in the display stage. When the display panel is in the display stage, the electric potential of the signal transmitted by the touch control line TP to the touch control electrode 40 is lower, and the signal is multiplexed into the fixed electric potential line 50 through the low electric potential signal line VGL, so that the load of the touch control line TP electrically connected with the first compensation capacitor 31 is increased, and meanwhile, the influence of the overhigh voltage of the signal on the touch control line TP on the display panel is avoided.
In some alternative embodiments, please refer to fig. 12, fig. 12 is a schematic plan view of a display device provided by the present invention, and a display device 1000 provided by the present embodiment includes a display panel 100 provided by the above-mentioned embodiments of the present invention. The embodiment of fig. 12 is only an example of a mobile phone, and the display device 1000 is described, and it is to be understood that the display device 1000 provided in the embodiment of the present invention may be any other display device 1000 having a display function, such as a computer, a television, a vehicle-mounted display device, etc., which is not particularly limited in this respect. The display device 1000 provided in the embodiment of the present invention has the beneficial effects of the display panel 100 provided in the embodiment of the present invention, and the specific description of the display panel 100 in the above embodiments may be referred to in the embodiments, and the description of the embodiment is omitted herein.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
the display panel provided by the invention comprises a plurality of touch lines and a plurality of data lines, wherein the touch lines are used for providing signals for touch electrodes electrically connected with the touch lines, and the data lines are used for providing signals for pixels electrically connected with the data lines. The touch control line and the data line are both positioned on the first metal layer, namely, the touch control line and the data line can be formed through the same mask process, so that the process and the production cost are effectively reduced. When the display panel is in a display stage, the data lines provide signals for pixels electrically connected with the data lines, at the moment, the touch control lines are easy to be coupled by the data lines, so that the signals on the touch control lines are unstable, and the signals on the touch control electrodes electrically connected with the touch control lines are unstable, so that the display panel is easy to display abnormal when the display panel is in heavy load display, and the display effect is affected. In the display panel provided by the invention, when the touch control line and the data line are arranged on the same layer, the touch control line is more easily coupled with the data line. And when touch control line and data line are with the layer setting for at least one deck planarization layer of interval between touch control line and the touch control electrode, for inorganic insulating layer, planarization layer is great along the thickness on the plane that the perpendicular to display panel is located, makes the extraction capacitance between touch control line and the touch control electrode less, is unfavorable for stabilizing the signal on the touch control line, makes display panel appear showing when the heavy load display frame unusual condition more seriously. The display panel provided by the invention further comprises at least one load compensation unit, wherein the at least one load compensation unit is electrically connected with one touch line, the load compensation unit is used for increasing the load of the touch line electrically connected with the load compensation unit, and the coupling of the data line to the touch line is reduced by increasing the load on the touch line, so that the signal on the touch line is stabilized, and the display effect of the display panel is effectively improved.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A display panel, comprising:
the device comprises a substrate base plate and a first metal layer positioned on one side of the substrate base plate; the display panel further comprises a second metal layer, wherein the second metal layer and the first metal layer are positioned on the same side of the substrate base plate, and the second metal layer is insulated from the first metal layer;
the touch control lines and the data lines are positioned on the first metal layer;
at least one load compensation unit, at least one load compensation unit is electrically connected with one touch control line, and the load compensation unit is used for increasing the load of the touch control line electrically connected with the load compensation unit;
the load compensation unit at least comprises a first compensation capacitor and a second compensation capacitor;
the touch control line comprises a first wiring part, and the first wiring part is a first polar plate of the second compensation capacitor;
the second polar plate of the second compensation capacitor at least partially overlaps the first wiring part along the direction perpendicular to the plane of the substrate base plate, and the second polar plate of the second compensation capacitor is insulated from the first wiring part;
the second polar plate of the second compensation capacitor is electrically connected with the common signal line, and the second polar plate of the second compensation capacitor is positioned on the second metal layer.
2. The display panel of claim 1, wherein the display panel comprises,
the display panel includes a display region and a non-display region surrounding the display region;
the load compensation unit is positioned in the non-display area.
3. The display panel of claim 2, wherein the display panel comprises,
the first wiring part is a first polar plate of the first compensation capacitor;
the second polar plate of the first compensation capacitor at least partially overlaps the first wiring part along the direction perpendicular to the plane of the substrate base plate, and the second polar plate of the first compensation capacitor is insulated from the first wiring part;
the second polar plate of the first compensation capacitor is electrically connected with the fixed potential line.
4. The display panel according to claim 3, wherein,
the non-display region further includes a common signal line multiplexed to the fixed potential line.
5. The display panel of claim 4, wherein the display panel comprises,
the common signal line and the second polar plate of the first compensation capacitor are both positioned on the second metal layer.
6. The display panel of claim 4, wherein the display panel comprises,
the display panel further comprises a second metal layer and a semiconductor layer, wherein the second metal layer, the semiconductor layer and the first metal layer are positioned on the same side of the substrate, and any two of the second metal layer, the semiconductor layer and the first metal layer are insulated;
the common signal line is positioned on the second metal layer;
the second plate of the first compensation capacitor is positioned on the semiconductor layer.
7. The display panel of claim 6, wherein the display panel comprises,
the second polar plate of the first compensation capacitor is electrically connected with the common signal line through a via hole.
8. The display panel according to claim 3, wherein,
the display region further includes a low potential signal line extending to the non-display region, the low potential signal line being multiplexed into the fixed potential line.
9. The display panel according to claim 3, wherein,
the touch control line extends along a first direction, the touch control line further comprises a second wiring part, and the width of the first wiring part is larger than that of the second wiring part along a second direction, wherein the first direction and the second direction are intersected.
10. A display device, characterized in that the display device comprises a display panel according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481090.7A CN114253430B (en) | 2021-12-06 | 2021-12-06 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111481090.7A CN114253430B (en) | 2021-12-06 | 2021-12-06 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
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| CN114253430A CN114253430A (en) | 2022-03-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104049799A (en) * | 2014-05-30 | 2014-09-17 | 京东方科技集团股份有限公司 | Array substrate, embedded touch screen and display device |
| CN104795428A (en) * | 2015-04-10 | 2015-07-22 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
| CN108958523A (en) * | 2017-05-18 | 2018-12-07 | 京东方科技集团股份有限公司 | A kind of driving method of touch-control display panel, display device and touch-control display panel |
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| KR20070117268A (en) * | 2006-06-08 | 2007-12-12 | 삼성전자주식회사 | Thin film transistor substrate and liauid crystal display pannel having the same |
| KR20210116832A (en) * | 2020-03-17 | 2021-09-28 | 삼성디스플레이 주식회사 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049799A (en) * | 2014-05-30 | 2014-09-17 | 京东方科技集团股份有限公司 | Array substrate, embedded touch screen and display device |
| CN104795428A (en) * | 2015-04-10 | 2015-07-22 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
| CN108958523A (en) * | 2017-05-18 | 2018-12-07 | 京东方科技集团股份有限公司 | A kind of driving method of touch-control display panel, display device and touch-control display panel |
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