CN107085332B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN107085332B CN107085332B CN201710499628.4A CN201710499628A CN107085332B CN 107085332 B CN107085332 B CN 107085332B CN 201710499628 A CN201710499628 A CN 201710499628A CN 107085332 B CN107085332 B CN 107085332B
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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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of 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
- G02F1/13338—Input devices, e.g. touch panels
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- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention provides a display panel and a display device, which relate to the technical field of display, and the display panel comprises: the touch control display device comprises a plurality of data lines, a plurality of connecting wires and a plurality of conductor modules, wherein the display stage and the touch control stage are time multiplexed, at least one conductor module is connected in series with the part of the same data line extending out of a display area and/or the corresponding electrically connected connecting wires, and the resistance value sum of the conductor modules connected in series with each data line and the corresponding electrically connected connecting wires is equal. In the embodiment of the invention, after the touch control stage is finished and the display stage is switched, when the data signal is transmitted, the load resistance on the transmission line where the data line and the corresponding electrically connected connecting wire are located is larger, so that the probability of generating large current on the transmission line in the data signal transmission process is reduced, the probability of generating bright lines on the display panel is further reduced, and the display effect of the display panel is improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
In the prior art, for a display panel with time multiplexing of a touch stage and a display stage, after the touch stage is ended and switched to the display stage, a large current may be generated when data signals start to be transmitted, and in the process of transmitting the data signals, when the data signals transmitted by data lines are data signals corresponding to the large current, bright lines may appear on the display panel, which affects the display effect of the display panel.
[ summary of the invention ]
Embodiments of the present invention provide a display panel and a display device, so as to improve the problem that a large current may be generated during the transmission of a data signal in the prior art.
In one aspect, an embodiment of the present invention provides a display panel, including a display area and a non-display area surrounding the display area, where the display panel further includes:
the display device comprises a plurality of data lines and a plurality of connecting wires, wherein the plurality of data lines are arranged in a display area, the plurality of connecting wires are positioned in a non-display area, and the connecting wires are electrically connected with the data lines in the non-display area;
the data line and the connecting lead wire which is correspondingly and electrically connected with the data line are connected in series with at least one conductor module;
the display device comprises a display stage and a touch stage, wherein the display stage and the touch stage are time-multiplexed.
Optionally, a total resistance value Δ R of each of the data lines, a portion of the data line extending out of the display area and/or the conductor modules connected in series with the corresponding electrically connected connection wires satisfies the following condition:
wherein, CXA parasitic capacitance value corresponding to a transmission line in which one of the data lines is located in the display panel, C a parasitic capacitance value corresponding to a transmission line in which one of the data lines is located in a reference display panel, RXAnd R is a parasitic resistance value corresponding to a transmission line where one data line in the display panel is located before the transmission line where one data line is located is connected with the conductor module in series.
Optionally, the connection conductive line and the data line are electrically connected through a via.
Optionally, the non-display area includes a data line extension area, and a portion of the data line extending out of the display area is located in the data line extension area;
the plurality of conductor modules are all located in the data line extension area, and the conductor modules and the data lines are arranged on the same layer.
Optionally, the material of the conductor module comprises indium tin oxide.
Optionally, the display panel further comprises:
the plurality of data lines and the plurality of scanning lines are insulated and crossed in the display area to define a plurality of pixel units, each pixel unit comprises a pixel electrode, and the conductor module and the pixel electrode are arranged on the same layer.
Optionally, the display panel further comprises:
a plurality of touch lines;
in the display area, the touch control lines and the data lines are positioned on different layers, and the touch control lines and the data lines are overlapped with each other in a direction perpendicular to the plane of the substrate base plate; alternatively, the first and second electrodes may be,
the touch line and the data line do not overlap with each other.
Optionally, the display panel further comprises:
the touch control lines and the data lines are arranged on the same layer in the display area, and the touch control lines and the data lines are not overlapped with each other in the direction perpendicular to the plane of the substrate base plate.
Optionally, the display panel further comprises:
the material of the plurality of touch lines is the same as that of the plurality of data lines.
Optionally, the display panel further comprises:
the touch control device comprises a self-capacitance type touch control electrode layer and a plurality of touch control lines, wherein the self-capacitance type touch control electrode layer comprises a plurality of touch control electrode blocks which are arranged in an array mode, and each touch control electrode block is electrically connected with at least one touch control line.
Optionally, the self-contained touch electrode layer is reused as a common electrode layer in the display stage.
Optionally, the display panel further comprises:
the touch control device comprises a first touch control electrode layer, a second touch control electrode layer and a touch control unit, wherein the first touch control electrode layer comprises a plurality of first sub-touch control electrodes, the first sub-touch control electrodes are in a strip shape, and the first sub-touch control electrodes are sequentially arranged along a first direction;
the second touch electrode layer comprises a plurality of second sub-touch electrodes, the second sub-touch electrodes are strip-shaped, the second sub-touch electrodes are sequentially arranged along a second direction, and the first direction is crossed with the second direction;
the first touch electrode layer is insulated from the second touch electrode layer.
Optionally, the first touch electrode layer is a touch driving electrode layer for receiving a touch driving signal, and the second touch electrode layer is a touch detection electrode layer for generating a touch detection signal.
In another aspect, an embodiment of the present invention provides a display device, including the display panel as described above.
Any one of the above technical solutions has the following beneficial effects:
in the embodiment of the invention, because the part of the same data line extending out of the display area and/or the connecting wires correspondingly and electrically connected is at least connected with one conductor module in series, the load resistance on the transmission line where the data line and the connecting wires correspondingly and electrically connected are located can be increased, and because the load resistance on the transmission line is larger under the condition of a certain voltage, the current on the transmission line is smaller, for the display panel with time multiplexing in the touch control stage and the display stage, after the touch control stage of the display panel is finished and switched to the display stage, when the data signal is transmitted, because the load resistance on the transmission line is larger, the probability of generating large current on the transmission line in the data signal transmission process can be reduced, and because the probability of generating large current in the transmission line is reduced, the probability of generating bright lines on the display panel can be further reduced, therefore, the display effect of the display panel can be improved, meanwhile, because the resistance values of each data line and the conductor modules which are connected with the corresponding electrically connected connecting wires in series are equal, the added load resistance on each transmission line can be the same, and further, each transmission line keeps the same signal delay time between any two transmission lines or reduces the difference of signal delay between the two transmission lines in the process of transmitting data signals, so that the display effect of the display panel cannot be adversely affected.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a top view of a display panel according to an embodiment of the present invention;
FIG. 2 is a top view of another display panel according to an embodiment of the present invention;
FIG. 3 is a top view of another display panel according to an embodiment of the present invention;
FIG. 4 is a top view of another display panel according to an embodiment of the present invention;
FIG. 5 is a partial top view of another display panel according to an embodiment of the present invention;
FIG. 6 is a partial top view of another display panel according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along direction BB' in FIG. 6;
FIG. 8 is a partial top view of another display panel according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view taken along direction CC' of FIG. 8;
FIG. 10 is another cross-sectional view taken along direction CC' of FIG. 8;
FIG. 11 is a partial top view of another display panel according to an embodiment of the present invention;
FIG. 12 is a partial top view of another display panel according to an embodiment of the present invention;
FIG. 13 is a partial top view of another display panel according to an embodiment of the present invention;
fig. 14 is a schematic diagram of a display device according to an embodiment of the invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it is also to be understood that when an element is referred to as being "on" or "under" another element, it can be directly formed on "or" under "the other element or be indirectly formed on" or "under" the other element through an intermediate element.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 (fig. 1 only shows a case where the connection wires are connected in series with one conductor module, where the wires located in the dashed box in fig. 1 are the connection wires), fig. 1 is a top view of a display panel according to an embodiment of the present invention, as shown in fig. 2 (fig. 2 only shows a case where the data wires extend out of the display area and are connected in series with one conductor module, where the wires located in the dashed box in fig. 2 are the connection wires), fig. 2 is a top view of another display panel according to an embodiment of the present invention, as shown in fig. 3, (fig. 3 only shows a case where the same data wire extends out of the display area and its corresponding electrically connected connection wires are connected in series with one conductor module, where the wires located in the dashed box in fig. 3 are the connection wires), fig. 3 is a top view of another display panel according to an embodiment of the present invention, the display panel includes a display area 1 and a non-display area 2 surrounding the display area 1, and further includes: the display device comprises a plurality of data lines 11 and a plurality of connecting leads 21, wherein the display area 1 is provided with the plurality of data lines 11, the plurality of connecting leads 21 are positioned in a non-display area 2, and the connecting leads 21 and the data lines 11 are electrically connected in the non-display area 2; a plurality of conductor modules 12, at least one conductor module 12 is connected in series with the part of the same data line 11 extending out of the display area 1 and/or the corresponding electrically connected connecting lead 21, and the resistance value sum of the conductor modules 12 connected in series with each data line 11 and the corresponding electrically connected connecting lead 21 is equal; and the display stage and the touch stage are time multiplexed.
Specifically, as shown in fig. 1, the touch stage and the display stage of the display panel are time-multiplexed, that is, the display stage is entered after the display stage is completed, and the display stage is entered after the touch stage is completed, wherein in the display stage, the display panel is used for displaying a picture, and in the touch stage, the display panel is used for determining a touch position of a touch subject (for example, a finger of a user). The display area 1 in the display panel further includes a plurality of scanning lines (not shown), the plurality of scanning lines and the plurality of data lines 11 are insulated and crossed to define a plurality of pixel units (not shown), each pixel unit includes a thin film transistor (not shown) and a pixel electrode (not shown), the gate of the thin film transistor is electrically connected with the corresponding scanning line, the source of the thin film transistor is electrically connected with the corresponding data line 11, the drain of the thin film transistor is electrically connected with the corresponding pixel electrode, when a scanning signal passes through one scanning line after entering a display phase, the thin film transistor of the corresponding row is turned on, and the plurality of data lines 11 pass through a data signal to charge the pixel electrode in the row. In the process of transmitting data signals, when the data signals transmitted by the data lines are data signals corresponding to the large current, bright lines may appear in the extending direction of the scanning lines on the display panel, which affects the display effect of the display panel, but in the embodiment of the present invention, specifically as shown in fig. 1, when each connecting wire 21 is connected in series with a conductor module 12 having the same resistance value, since the connecting wire 21 is connected in series with one conductor module 12, the load resistance on the transmission line where the connecting wire 21 is located is increased, since the load resistance on the transmission line is higher under a certain voltage, the current on the transmission line is smaller, and since each connecting wire 21 is electrically connected with one data line 11, the load resistance on the transmission line where each data line 11 is located can be increased, for the display panel in which the touch stage and the display stage are time multiplexed, after the touch control stage is finished and the display stage is switched, when data signals are transmitted, the load resistance on the transmission line where the data line 11 and the corresponding electrically connected connection wire 21 are located is large, so that the probability of generating large current on the transmission line in the data signal transmission process can be reduced, and the probability of generating large current on the transmission line where the data line 11 and the corresponding electrically connected connection wire 21 are located is reduced, so that the probability of generating bright line on the display panel can be reduced, so that the display effect of the display panel can be improved, meanwhile, because the resistance values of the conductor modules 12 connected in series with each transmission line are equal, the load resistance added on each transmission line can be the same, so that the same signal delay time is kept between any two transmission lines in the data signal transmission process of each transmission line, or reduce the difference of signal delay between the two, thereby not having adverse effect on the display effect of the display panel.
As shown in fig. 2, when a conductor module 12 with the same resistance value is connected in series to the portion of each data line 11 extending out of the display area 1, the conductor module 12 is connected in series to the portion of each data line 11 extending out of the display area 1, so that the load resistance on the transmission line on which the data line 11 is located is increased, and the current on the transmission line is decreased as the load resistance on the transmission line is increased under the condition of a constant voltage, so that for the display panel in which the touch phase and the display phase are time-multiplexed, after the touch phase is finished and the display phase is switched to the display phase, when the data signal transmission is started, the load resistance on the transmission line on which the data line 11 is located is increased, so that the probability of generating a large current on the transmission line on which the data line 11 is located during the data signal transmission can be decreased, and the probability of generating a large current on the transmission line on which the, and then can reduce the probability that the bright line appears on the display panel, thereby can promote display panel's display effect, simultaneously, because the resistance value of the conductor module 12 that every data line 11 connects in series is equal, consequently, can make the load resistance that increases on the transmission line that every data line 11 is located the same, and then make the transmission line that each data line 11 is located in the in-process of transmitting data signal, between arbitrary two transmission lines, keep the same signal delay time, or reduce the difference of signal delay between the two, thereby can not produce harmful effects to display panel's display effect.
As shown in fig. 3, for the data line 11, the portion extending out of the display area 1 and the corresponding electrically connected connecting wire 21 are connected in series with a conductor module 12, and the resistance value of each data line 11 and the corresponding electrically connected connecting wire 21 connected in series with the conductor module 12 are equal, wherein the portion extending out of the display area 1 of the data line 11 and the corresponding electrically connected connecting wire 21 connected in series with the conductor module 12 increase the load resistance on the transmission line where the data line 11 and the connecting wire 21 are located, and since the load resistance on the transmission line is larger under a constant voltage, the current on the transmission line is smaller, and for the display panel with time multiplexing of the touch stage and the display stage, after the touch stage is finished and switched to the display stage, when the data signal starts to be transmitted, the load resistance on the transmission line is larger, so that the data signal transmission process can be reduced, the probability of producing heavy current on the transmission line, and because the reduction of the probability of producing heavy current in the transmission line, and then can reduce the probability that the bright line appears on the display panel, thereby promote display panel's display effect, simultaneously, because the resistance value of the conductor module 12 of every transmission line series connection equals, consequently, can make the load resistance that increases on every transmission line the same, and then make each transmission line at the in-process of transmission data signal, between arbitrary two transmission lines, keep the same signal delay time, or reduce the difference of signal delay between the two, thereby can not produce harmful effects to display panel's display effect. It should be noted that, in some alternative embodiments, for the same data line, a portion of the data line extending out of the display area and/or the corresponding electrically connected connection wire may be connected in series with a plurality of conductor modules, wherein the sum of the resistance values of the conductor modules connected in series on each data line and the corresponding electrically connected connection wire thereof is equal.
Alternatively, as shown in fig. 1, 2 and 3, the total resistance value Δ R of the conductor module 12 of each data line 11, the portion thereof extending out of the display area and/or the corresponding electrically connected connection wire 21 in series satisfies the following condition:
wherein, CXA parasitic capacitance value corresponding to a transmission line in which one data line 11 in the display panel is located, C is a parasitic capacitance value corresponding to a transmission line in which one data line in the reference display panel is located, and R isXR is a parasitic resistance value corresponding to a transmission line where one data line 11 in the display panel is located before the serial conductor module, and R is a parasitic resistance value corresponding to a transmission line where one data line in the reference display panel is located.
Specifically, the reference display panel may be a standard display panel specifically produced according to a certain process, and has a low high current probability that meets the requirement, and in the production process, the other display panels all use the standard display panel as a reference to determine whether the produced display panel meets the requirement.
In the case of one of the display panels,the higher the large current multiple corresponding to the transmission line where one data line is located, the higher the probability that the transmission line where the data line is located generates large current is, and further the probability that the display panel appears bright lines in the extension direction of the scanning lines is, wherein the large current multiple of the transmission line where the data line is located is equal to
Compared with the prior art (the value of the delta R is 0), in the embodiment of the invention, the transmission line where each data line 11 is located is connected with one or more conductor modules 12 in series, so that the value of the delta R is larger than 0, the high-current multiplying power of the transmission line where the data line 11 is located is reduced, the probability of bright lines appearing on the display panel along the extension direction of the scanning lines is reduced, in the actual production process, the high-current multiplying power of the transmission line where one data line 11 is located is smaller than or equal to 0.5, the probability of large current appearing can be effectively ensured to be reduced, and the probability of bright lines appearing on the display panel along the extension direction of the scanning lines is reduced.
Since the length and the cross-sectional area of the conductor module 12 in series with the transmission line in which one data line 11 is located in different display panels may be different, the length and the cross-sectional area of the conductor module 12 in series may be determined according to actual needs, and further, assuming that the transmission line in which each data line 11 is located is only in series with one conductor module 12, after the resistivity ρ, the cross-sectional area H, and the Δ R of the conductor module 12 are determined, the length L of each conductor module 12 may be determined because the length L of the conductor module 12 is Δ R × H/ρ.
Alternatively, as shown in fig. 1, 2 and 3, the connection conductive line 21 and the data line 11 are electrically connected through a via (not shown in the figure).
Specifically, when the connection wire 21 and the data line 11 are located at different layers, the connection wire 21 and the data line 11 may be electrically connected through a via hole, and the wiring space may be saved by disposing the connection wire 21 and the data line 11 at different layers.
Optionally, as shown in fig. 4, fig. 4 is a top view of another display panel provided in the embodiment of the present invention, wherein the non-display area 2 includes a data line extension area 3, and a portion of the data line 11 extending out of the display area 1 is located in the data line extension area 3; all the conductor modules 12 are located in the data line extension area 3, and the conductor modules 12 are arranged on the same layer as the data lines 11.
Specifically, as shown in fig. 4, the non-display region 2 includes a data line extension region 3 therein, and the data line 11 extends from the display region 1 into the data line extension region 3 in the non-display region 2 and then is electrically connected to the conductor module 12 located in the data line extension region 3. Wherein, conductor module 12 and data line 11 set up on the same layer, thereby can not increase the thickness of display panel, and set up conductor module 12 and can not cause the influence to display panel's normal demonstration in the data line extension region 3 that is arranged in non-display area 2, simultaneously, because conductor module 12 and data line 11 set up on the same layer, thereby when conductor module 12 and data line 11 realize the electricity and connect, can not need to pass through via hole connection, make the connected mode of conductor module 12 and data line 11 simple relatively, and can obtain through same technology, energy-conserving process flow.
Alternatively, as shown in fig. 1, 2 and 3, the material of the conductor module 12 comprises indium tin oxide.
Specifically, because indium tin oxide has a relatively high resistivity, after a small section of conductor module made of indium tin oxide material is connected in series in the transmission line, the resistance of the transmission line can be increased, as shown in fig. 1, fig. 2 and fig. 3, after a part of the data line 11 extending out of the display area 1 and/or the connecting wire 21 is connected in series with a conductor module 12 made of indium tin oxide material, the load resistance on the transmission line on which the data line 11 is located can be increased, for the display panel in which the touch phase and the display phase are time-multiplexed, after the touch phase is ended and the display phase is switched to the display phase, when the data signal starts to be transmitted, because the load resistance on the transmission line is relatively high, the probability of generating a large current on the transmission line in the data signal transmission process can be reduced, and because the probability of generating a large current in the transmission line, and then can reduce the display panel along the probability that the bright line appears in the scanning line extending direction to promote display panel's display effect.
Optionally, as shown in fig. 1, fig. 2, fig. 3, and fig. 5, fig. 5 is a partial top view of another display panel provided in an embodiment of the present invention, where the display panel further includes: the plurality of scanning lines 13, the plurality of data lines 11 and the plurality of scanning lines 13 are insulated and crossed in the display area 1 to define a plurality of pixel units 14, the pixel units 14 comprise pixel electrodes 141, and the conductor modules 12 are arranged on the same layer with the pixel electrodes 141.
Specifically, as shown in fig. 1, 2, 3 and 5, the data lines 11 and the scan lines 13 may be crossed in an insulated manner to form a plurality of pixel units 14, each pixel unit 14 may include a pixel electrode 141, wherein after a thin film transistor switch (not shown) corresponding to the pixel electrode 141 is turned on via the scan line 13, the data line 11 charges the pixel electrode 141 via a source and a drain of the thin film transistor switch to have a certain potential. The pixel electrode 141 and the conductor module 12 are disposed on the same layer and can be made of indium tin oxide, so that the pixel electrode 141 and the conductor module 12 can be obtained by the same process, the process flow can be saved, and the production cost can be reduced.
Alternatively, as shown in fig. 1, fig. 2, fig. 3, fig. 6 and fig. 7, fig. 6 is a partial top view of another display panel provided in an embodiment of the present invention, and fig. 7 is a cross-sectional view taken along the direction BB' in fig. 6, where the display panel further includes: a plurality of touch lines 15; in the display area 1, the touch lines 15 and the data lines 11 are located on different layers, and the touch lines 15 and the data lines 11 are overlapped with each other in a direction perpendicular to the plane of the substrate base plate 16.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 6, and fig. 7, the touch lines 15 and the data lines 11 are disposed in different layers, and an orthogonal projection of the touch lines 15 on a plane of the substrate base 16 overlaps an orthogonal projection of the data lines 11 on a plane of the substrate base 16. The touch driving integrated circuit or IC (not shown) may transmit a touch driving signal and/or a touch detection signal through the touch line 15.
Alternatively, as shown in fig. 1, fig. 2, fig. 3, fig. 8 and fig. 9, fig. 8 is a partial top view of another display panel provided in an embodiment of the present invention, and fig. 9 is a cross-sectional view taken along direction CC' in fig. 8, where the display panel further includes: a plurality of touch lines 15; in the display area 1, the touch lines 15 and the data lines 11 are located on different layers, and the touch lines 15 and the data lines 11 do not overlap with each other in a direction perpendicular to the plane of the substrate base plate 16.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 8, and fig. 9, the touch line 15 and the data line 11 are disposed in different layers, and an orthogonal projection of the touch line 15 on the plane of the substrate 16 does not overlap an orthogonal projection of the data line 11 on the plane of the substrate 16.
Alternatively, as shown in fig. 1, fig. 2, fig. 3, fig. 8 and fig. 10, fig. 10 is another cross-sectional view taken along a direction CC' in fig. 8, and the display panel further includes: the plurality of touch control lines 15 are arranged in the same layer as the plurality of data lines 11 in the display area 1, and the touch control lines 15 and the data lines 11 are not overlapped with each other in a direction perpendicular to the plane of the substrate base plate 16.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 8, and fig. 10, the touch line 15 and the data line 11 are disposed in the same layer and are insulated from each other.
Alternatively, as shown in fig. 1, 2, 3, 8, and 10, the material of the plurality of touch lines 15 is the same as the material of the plurality of data lines 11.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 8, and fig. 10, the touch lines 15 and the data lines 11 are made of the same material and are disposed on the same layer.
Optionally, as shown in fig. 11, fig. 11 is a partial top view of another display panel provided in the embodiment of the present invention, where the display panel further includes: the touch screen comprises a self-capacitance type touch electrode layer 17 and a plurality of touch lines 15, wherein the self-capacitance type touch electrode layer comprises a plurality of touch electrode blocks 171 arranged in an array, and each touch electrode block 171 is electrically connected with at least one touch line 15.
Specifically, as shown in fig. 11, the self-contained touch electrode layer includes a plurality of touch electrode blocks 171 arranged in an array, each touch electrode block 171 and a ground terminal with zero potential, for example, may form a capacitor, i.e., a self-capacitance channel, each touch electrode block 171 realizes input of a touch driving signal and output of a touch detection signal through a touch line 15 electrically connected thereto, respectively, and the display panel determines a touch position by using the touch driving signal and the touch detection signal.
Alternatively, as shown in fig. 11 and 12, fig. 12 is a partial top view of another display panel provided in the embodiment of the present invention, and the self-capacitance touch electrode layer 17 is reused as a common electrode layer in a display stage.
Specifically, as shown in fig. 11, in the display panel including the self-contained touch electrode layer 17, the operation period is divided into a touch stage in which the display panel performs touch control and a display stage in which the display panel performs display control, wherein the touch stage and the display stage can be alternated. The data lines 11 and the scan lines 13 may be crossed to form a plurality of pixel units 14, each pixel unit 14 may include a pixel electrode 141 and a tft 142, wherein in the display stage, after the tft 142 switch corresponding to the pixel electrode 141 is turned on by the scan line 13, the data line 11 charges the pixel electrode 141 via the source and drain of the tft 142 switch to make it have a certain potential, and the self-contained touch electrode layer 17 is multiplexed as a common electrode layer.
Optionally, as shown in fig. 13, fig. 13 is a partial top view of another display panel provided in the embodiment of the present invention, where the display panel further includes: the touch panel includes a first touch electrode layer 18, the first touch electrode layer 18 includes a plurality of first sub-touch electrodes 181, the first sub-touch electrodes 181 are in a strip shape, and the first sub-touch electrodes 181 are sequentially arranged along a first direction X; the second touch electrode layer 19, the second touch electrode layer 19 includes a plurality of second sub-touch electrodes 191, the second sub-touch electrodes 191 are in a strip shape, the second sub-touch electrodes 191 are sequentially arranged along a second direction Y, and the first direction X intersects the second direction Y; the first touch electrode layer 18 is insulated from the second touch electrode layer 19.
Specifically, as shown in fig. 13, the mutual capacitance touch electrode layer includes a first touch electrode layer 18 and a second touch electrode layer 19, the first touch electrode layer 18 includes a plurality of first sub-touch electrodes 181 which are strip-shaped and sequentially arranged along a first direction X, the second touch electrode layer 19 includes a plurality of second sub-touch electrodes 191 which are strip-shaped and sequentially arranged along a second direction Y, and the first touch electrode layer 18 and the second touch electrode layer 19 are insulated by an insulating layer therebetween.
Alternatively, as shown in fig. 13, the first touch electrode layer 18 is a touch driving electrode layer for receiving a touch driving signal, and the second touch electrode layer 19 is a touch detection electrode layer for generating a touch detection signal.
Specifically, as shown in fig. 13, the first touch electrode layer 18 is a touch driving electrode layer, the second touch electrode layer 19 is a touch detection electrode layer, that is, the first sub-touch electrode 181 is a touch driving electrode, the second sub-touch electrode 191 is a touch detection electrode, the first sub-touch electrode 181 receives a touch driving signal through a touch line (not shown in the figure) electrically connected thereto, when a touch subject (such as a finger of a user) presses the display panel, a capacitance between the first sub-touch electrode 181 and the second sub-touch electrode 191 at a corresponding position changes, so that the second sub-touch electrode 191 at the corresponding position outputs a touch detection signal through the touch line electrically connected thereto, and the display panel determines a touch position by using the touch driving signal and the touch detection signal.
As shown in fig. 14, fig. 14 is a schematic view of a display device according to an embodiment of the present invention, including the display panel 21, where the specific structure and principle of the display panel 21 are the same as those of the embodiment, and are not repeated herein.
The display device according to the embodiment of the present invention may include, but is not limited to, any electronic device having a liquid crystal display function, such as a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP4 player, or a television.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (13)
1. A display panel including a display area and a non-display area surrounding the display area, characterized by further comprising:
the display device comprises a plurality of data lines and a plurality of connecting wires, wherein the plurality of data lines are arranged in a display area, the plurality of connecting wires are positioned in a non-display area, and the connecting wires are electrically connected with the data lines in the non-display area;
the data line and the connecting lead wire which is correspondingly and electrically connected with the data line are connected in series with at least one conductor module;
a display stage and a touch stage, wherein the display stage and the touch stage are time multiplexed;
the total resistance value delta R of each data line, the part of each data line extending out of the display area and/or the conductor modules which are correspondingly and electrically connected with the connecting lead wires in series connection meets the following condition:
wherein, CXA parasitic capacitance value corresponding to a transmission line in which one of the data lines is located in the display panel, C a parasitic capacitance value corresponding to a transmission line in which one of the data lines is located in a reference display panel, RXAnd R is a parasitic resistance value corresponding to a transmission line where one data line in the display panel is located before the transmission line where one data line is located is connected with the conductor module in series.
2. The display panel according to claim 1, wherein the connection conductive line and the data line are electrically connected through a via.
3. The display panel according to claim 1, wherein the non-display area includes a data line extension area, and a portion of the data line extending out of the display area is located in the data line extension area;
the plurality of conductor modules are all located in the data line extension area, and the conductor modules and the data lines are arranged on the same layer.
4. The display panel of claim 1, wherein the material of the conductor module comprises indium tin oxide.
5. The display panel according to claim 1 or 4, further comprising:
the plurality of data lines and the plurality of scanning lines are insulated and crossed in the display area to define a plurality of pixel units, each pixel unit comprises a pixel electrode, and the conductor module and the pixel electrode are arranged on the same layer.
6. The display panel of claim 1, further comprising:
a plurality of touch lines;
in the display area, the touch control lines and the data lines are positioned on different layers, and the touch control lines and the data lines are overlapped with each other in a direction perpendicular to the plane of the substrate base plate; alternatively, the first and second electrodes may be,
the touch line and the data line do not overlap with each other.
7. The display panel of claim 1, further comprising:
the touch control lines and the data lines are arranged on the same layer in the display area, and the touch control lines and the data lines are not overlapped with each other in the direction perpendicular to the plane of the substrate base plate.
8. The display panel according to claim 7, further comprising:
the material of the plurality of touch lines is the same as that of the plurality of data lines.
9. The display panel of claim 1, further comprising:
the touch control device comprises a self-capacitance type touch control electrode layer and a plurality of touch control lines, wherein the self-capacitance type touch control electrode layer comprises a plurality of touch control electrode blocks which are arranged in an array mode, and each touch control electrode block is electrically connected with at least one touch control line.
10. The display panel of claim 9, wherein the self-contained touch electrode layer is multiplexed as a common electrode layer during the display phase.
11. The display panel of claim 1, further comprising:
the touch control device comprises a first touch control electrode layer, a second touch control electrode layer and a touch control unit, wherein the first touch control electrode layer comprises a plurality of first sub-touch control electrodes, the first sub-touch control electrodes are in a strip shape, and the first sub-touch control electrodes are sequentially arranged along a first direction;
the second touch electrode layer comprises a plurality of second sub-touch electrodes, the second sub-touch electrodes are strip-shaped, the second sub-touch electrodes are sequentially arranged along a second direction, and the first direction is crossed with the second direction;
the first touch electrode layer is insulated from the second touch electrode layer.
12. The display panel according to claim 11, wherein the first touch electrode layer is a touch driving electrode layer for receiving a touch driving signal, and the second touch electrode layer is a touch detection electrode layer for generating a touch detection signal.
13. A display device comprising the display panel according to any one of claims 1 to 12.
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| CN201710499628.4A CN107085332B (en) | 2017-06-27 | 2017-06-27 | Display panel and display device |
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| CN201710499628.4A CN107085332B (en) | 2017-06-27 | 2017-06-27 | Display panel and display device |
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| CN108061993A (en) * | 2017-12-27 | 2018-05-22 | 信利半导体有限公司 | The ameliorative way of resistance homogeneity between a kind of IPS display screens cabling |
| KR102418579B1 (en) * | 2017-12-27 | 2022-07-08 | 엘지디스플레이 주식회사 | Touch panel liquid crystal display device and method for driving the same |
| CN109254695A (en) * | 2018-11-23 | 2019-01-22 | 京东方科技集团股份有限公司 | The driving method of touch-control display panel, display device and touch-control display panel |
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| CN102830520A (en) * | 2012-06-29 | 2012-12-19 | 友达光电股份有限公司 | display panel and detection method thereof |
| CN107179639A (en) * | 2017-05-25 | 2017-09-19 | 上海中航光电子有限公司 | Array base palte and preparation method thereof and display panel |
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| KR102392683B1 (en) * | 2015-11-30 | 2022-05-02 | 엘지디스플레이 주식회사 | Display device with a built-in touch screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102830520A (en) * | 2012-06-29 | 2012-12-19 | 友达光电股份有限公司 | display panel and detection method thereof |
| CN107179639A (en) * | 2017-05-25 | 2017-09-19 | 上海中航光电子有限公司 | Array base palte and preparation method thereof and display panel |
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