CN111708237B - Array substrate, display panel and display device - Google Patents
Array substrate, display panel and display device Download PDFInfo
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- CN111708237B CN111708237B CN202010620889.9A CN202010620889A CN111708237B CN 111708237 B CN111708237 B CN 111708237B CN 202010620889 A CN202010620889 A CN 202010620889A CN 111708237 B CN111708237 B CN 111708237B
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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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
Abstract
The embodiment of the invention discloses an array substrate, a display panel and a display device. The array substrate comprises a substrate base plate; the first wiring layer and the transparent conductive layer are arranged on one side of the substrate; the first wiring layer comprises a plurality of touch signal lines and data signal lines, the transparent conductive layer comprises a plurality of common electrodes, and the common electrodes are multiplexed into touch electrodes; the transparent conductive layer further comprises a plurality of conductive blocks, and the conductive blocks are electrically connected with the corresponding touch signal lines through at least one via hole; the distance between the first edge of the conductive block and the first edge of the adjacent first common electrode block is d 1 The distance between the first edge of the touch signal line and the first edge of the adjacent first common electrode block is d 2 The distance between the second edge of the touch signal line and the first edge of the adjacent second common electrode block is d 3 ，d 2 ≥d 1 >d 3 . According to the scheme provided by the embodiment of the invention, the lateral parasitic capacitance of the touch signal line and the common electrode can be reduced, so that the load of the touch signal line is reduced, and the risk of poor display is reduced.
Description
Technical Field
The embodiment of the invention relates to a display technology, in particular to an array substrate, a display panel and a display device.
Background
As touch operation is a simple and convenient man-machine interaction mode, more and more products integrate touch functions into a liquid crystal display panel. The touch panel can be classified into an external touch panel (Add on Mode Touch Panel), a cover surface type touch panel (On Cell Touch Panel), and an in-cell type touch panel (In Cell Touch Panel) according to the structure. The embedded touch panel is characterized in that the touch electrode of the touch panel is arranged in the liquid crystal display panel, so that the thickness of the whole module can be reduced, and the manufacturing cost of the touch panel can be greatly reduced, thereby being widely applied.
In the prior art, in order to further reduce the structure and cost of the liquid crystal display panel, a touch and display driver integration (Touch and Display Driver Integration, TDDI) technology has been developed, that is, a touch chip and a display chip are integrated into the same chip, a common electrode of the display panel is multiplexed into a touch electrode, and the chip provides a common voltage signal and a touch voltage signal to the common electrode in a display stage and a touch stage, respectively. Because the touch signal wire is positioned between two adjacent public electrodes and is very close to the public electrodes in the existing design, the lateral electric field from the touch signal wire to the public electrodes on the left side and the right side is stronger, and therefore the load of the touch signal wire is larger. Particularly for high refresh rate (e.g., 90 Hz) screens, the larger load causes a larger delay in touch control, which does not keep up with the refresh rate of the screen, resulting in poor display.
Disclosure of Invention
The embodiment of the invention provides an array substrate, a display panel and a display device, wherein the design of the array substrate can reduce the lateral parasitic capacitance of a touch signal wire and a common electrode, so that the load of the touch signal wire is reduced, and the risk of poor display is reduced.
In a first aspect, an embodiment of the present invention provides an array substrate, including:
a substrate base;
the first wiring layer and the transparent conductive layer are arranged on one side of the substrate base plate and are separated by the insulating layer;
the first wiring layer comprises a plurality of touch signal lines and data signal lines, the touch signal lines extend along a first direction and are distributed along a second direction, the transparent conductive layer comprises a plurality of common electrodes, the common electrodes are multiplexed into touch electrodes, each common electrode is electrically connected with at least one touch signal line, each common electrode comprises a plurality of connected common electrode blocks, the projection of each touch signal line on the substrate is located between the projections of two adjacent columns of common electrode blocks on the substrate, and the data signal lines are overlapped with the common electrodes partially;
the data signal line comprises a first data signal line and a second data signal line, the first data signal line and the second data signal line are respectively positioned at two sides of the touch signal line, and the distance between the first data signal line and the touch signal line is greater than the distance between the second data signal line and the touch signal line;
the common electrode block comprises a first common electrode block and a second common electrode block, the first common electrode block and the first data signal line are positioned on the same side of the touch signal line, and the second common electrode block and the second data signal line are positioned on the same side of the touch signal line;
the transparent conductive layer further comprises a plurality of conductive blocks, the conductive blocks are at least partially overlapped with the touch signal lines along the direction perpendicular to the plane of the substrate, and the conductive blocks are electrically connected with the corresponding touch signal lines through at least one via hole;
the distance between the first edge of the conductive block and the first edge of the first end of the adjacent first common electrode block is d 1 The projection of the first edge of the touch signal line on the plane of the transparent conductive layer is d from the first edge of the first end of the adjacent first common electrode block 2 The projection of the second edge of the touch signal line on the plane of the transparent conductive layer is d from the first edge of the second end of the adjacent second common electrode block 3 ，d 2 ≥d 1 >d 3 ；
The first edge of the conductive block, the first edge of the first end of the first common electrode block, the first edge of the touch signal line, the second edge of the touch signal line and the first edge of the second end of the second common electrode block extend along the first direction, the first end of the first common electrode block is the end, close to the touch signal line, of the first common electrode block, and the second end of the second common electrode block is the end, close to the touch signal line, of the second common electrode block.
In a second aspect, an embodiment of the present invention further provides a display panel, including the above array substrate.
In a third aspect, an embodiment of the present invention further provides a display device, including the display panel described above.
The array substrate provided by the embodiment of the invention comprises a substrate, a first wiring layer and a transparent conducting layer, wherein the first wiring layer and the transparent conducting layer are arranged on one side of the substrate and are separated by an insulating layer; the first wiring layer comprises a plurality of touch signal lines and data signal lines which extend along a first direction and are distributed along a second direction, the transparent conductive layer comprises a plurality of common electrodes, and the common electrodes are multiplexed into touch electrodes; the transparent conductive layer comprises a plurality of conductive blocks, the conductive blocks are at least partially overlapped with the touch signal lines along the direction perpendicular to the plane of the substrate, and the conductive blocks are electrically connected with the corresponding touch signal lines through at least one via hole, namely, the parallel connection of the conductive blocks and the touch signal lines is realized, and the resistance of the touch signal lines is reduced; the distance between the first edge of the conductive block and the first edge of the first end of the adjacent first public electrode block is larger than the distance between the projection of the first edge of the touch signal line on the plane where the transparent conductive layer is located and the distance between the projection of the first edge of the adjacent first public electrode block and the distance between the projection of the first edge of the touch signal line and the first edge of the adjacent first public electrode block, so that the lateral parasitic capacitance of the touch signal line and the public electrode can be effectively weakened, the load of the touch signal line is reduced, and the risk of poor display is reduced.
Drawings
FIG. 1 is a schematic top view of an array substrate according to the prior art;
fig. 2 is a schematic diagram of a partial top view structure of an array substrate according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a partial top view of another array substrate according to an embodiment of the present invention;
fig. 4 to fig. 7 are schematic partial top view structures of another array substrate according to an embodiment of the present disclosure;
fig. 8 and fig. 9 are schematic partial top view structures of another array substrate according to an embodiment of the present invention;
fig. 10 and 11 are schematic partial top view structures of another array substrate according to an embodiment of the present disclosure;
fig. 12 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
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. It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present invention are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in the context, it will also be understood that when an element is referred to as being formed "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 intervening elements. The terms "first," "second," and the like, are used for descriptive purposes only and not for any order, quantity, or importance, but rather are used to distinguish between different components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Fig. 1 is a schematic top view of an array substrate in the prior art. Referring to fig. 1, the array substrate includes a plurality of scanning signal lines 1 extending in a row direction and arranged in a column direction, a plurality of data signal lines 2 extending in a column direction and arranged in a row direction, and a plurality of touch signal lines 3 extending in a column direction and arranged in a row direction; and a plurality of common electrodes 4, wherein the common electrodes 4 are multiplexed into touch electrodes, each common electrode 4 includes a common electrode block 6 (shown by a dotted line box in fig. 1) covering a plurality of pixels 5, and wherein the touch signal lines 3 are connected to the corresponding common electrodes 4 as touch electrodes. Referring to fig. 1, the touch signal lines 3 are located between two adjacent rows of common electrode blocks 6, and since the common electrodes 4 are generally made of transparent metal oxide (e.g. indium tin oxide ITO), the touch signal lines 3 are made of metal wires (e.g. the same layer as the data signal lines), i.e. the common electrodes 4 and the touch signal lines 3 are arranged in different layers, so that the lateral distances a and B between the common electrodes 4 and the touch signal lines 3 insulated from the common electrodes are small, generally about 2 μm, during the preparation process, so that the coupling effect between the touch signal lines 3 and the common electrodes 4 is strong during the use process, a strong lateral electric field is formed, and the load on the touch signal lines 3 is large. Particularly for a screen with a high refresh rate of 90Hz, a larger load causes a larger delay in the touch signal, which may not keep up with the refresh rate of the screen, resulting in poor display.
It should be noted that, although one common electrode 4 is electrically connected to only one touch signal line 3 in fig. 1, embodiments of the present invention are not limited to the above, and in other embodiments, one common electrode 4 may be electrically connected to a plurality of touch signal lines 3.
In order to solve the above problems, an embodiment of the present invention provides an array substrate, including a substrate; the first wiring layer and the transparent conductive layer are arranged on one side of the substrate and are separated by the insulating layer; the first wiring layer comprises a plurality of touch signal lines and data signal lines which extend along a first direction and are arranged along a second direction, the transparent conductive layer comprises a plurality of common electrodes, the common electrodes are multiplexed into touch electrodes, each common electrode is electrically connected with at least one touch signal line, each common electrode comprises a plurality of connected common electrode blocks, the projection of each touch signal line on the substrate is positioned between the projections of two adjacent rows of common electrode blocks on the substrate, and the data signal lines are overlapped with the common electrodes partially; the data signal line comprises a first data signal line and a second data signal line, the first data signal line and the second data signal line are respectively positioned at two sides of the touch signal line, and the distance between the first data signal line and the touch signal line is greater than the distance between the second data signal line and the data signal line; the common electrode block comprises a first common electrode block and a second common electrode block, the first common electrode block and the first data signal line are positioned on the same side of the touch signal line, and the second common electrode block and the second data signal line are positioned on the same side of the touch signal line; the transparent conductive layer also comprises a plurality of conductive blocks, the conductive blocks are at least partially overlapped with the touch signal lines along the direction perpendicular to the plane of the substrate, and the conductive blocks are electrically connected with the corresponding touch signal lines through at least one via hole; first conductive blockOne edge is spaced from the first edge of the first end of the adjacent first common electrode block by a distance d 1 The projection of the first edge of the touch signal line on the plane of the transparent conducting layer is d from the first edge of the first end of the adjacent first common electrode block 2 The projection of the second edge of the touch signal line on the plane of the transparent conductive layer is d from the first edge of the second end of the adjacent second common electrode block 3 ，d 2 ≥d 1 >d 3 The method comprises the steps of carrying out a first treatment on the surface of the The first edge of the conductive block, the first edge of the first end of the first common electrode block, the first edge of the touch signal line, the second edge of the touch signal line and the first edge of the second end of the second common electrode block extend along the first direction, the first end of the first common electrode block is the end, close to the touch signal line, of the first common electrode block, and the second end of the second common electrode block is the end, close to the touch signal line, of the second common electrode block.
The substrate may be a rigid substrate, such as a glass substrate, or may be a flexible substrate, such as a polyimide substrate, which is not limited in the embodiment of the present invention. The transparent conductive layer can be any one of Indium Tin Oxide (ITO), tin antimony oxide (ATO), fluorine doped tin oxide (FTO), aluminum doped zinc oxide (AZO), boron doped zinc oxide (BZO), gallium doped zinc oxide (GZO) or 3, 4-ethylenedioxythiophene Polymer (PEDOT), and the implementation can be flexibly selected according to practical conditions. In other embodiments, the transparent conductive layer may be a thin film formed of metal or an oxide thereof, a metal nanowire, graphene, or the like, which is required to satisfy the characteristics of transparency and conductivity for the light emitted from the display device. It can be understood that the common electrode in the array substrate provided in this embodiment is multiplexed into a touch electrode, and the principle used for touch is not limited in specific implementation, for example, a self-capacitance touch principle can be adopted, and a plurality of common electrode blocks are connected to form a strip or block touch electrode; the mutual capacitance type touch principle can also be adopted, part of the common electrodes form touch driving electrodes, and part of the common electrodes form touch sensing electrodes, and the mutual capacitance type touch driving electrodes can be arranged according to actual conditions during specific implementation.
Exemplary, FIG. 2 shows an embodiment of the present invention providingIs a schematic diagram of a partial top view structure of the array substrate. Referring to fig. 2, the array substrate provided in this embodiment includes a first wiring layer 10 and a transparent conductive layer 20 disposed on one side of a substrate (not shown in fig. 2) and spaced apart by an insulating layer; the first wiring layer 10 comprises a plurality of touch signal lines 11 and data signal lines 12 which extend along a first direction y and are arranged along a second direction x, the transparent conductive layer 20 comprises a plurality of common electrode blocks 21, the projection of the touch signal lines 12 on the substrate is positioned between the projections of two adjacent rows of common electrode blocks 21 on the substrate, and the data signal lines 12 are partially overlapped with the common electrode blocks 21; two data signal lines adjacent to the touch signal line 11 are a first data signal line 12a and a second data signal line 12b, respectively, and the distance between the first data signal line 12a and the touch signal line 11 is greater than the distance between the second data signal line 12b and the touch signal line 11; the common electrode block 21 includes a first common electrode block 21a and a second common electrode block 21b, the first common electrode block 21a and the first data signal line 12a are located on the same side of the touch signal line 11, and the second common electrode block 21b and the second data signal line 12b are located on the same side of the touch signal line 11; fig. 2 schematically illustrates that the first common electrode block 21a is located on the left side of the touch signal line 11, and the second common electrode block 21b is located on the right side of the touch signal line 11, which is not a limitation of the embodiment of the present invention. The transparent conductive layer 20 further includes a conductive block 22, and along a direction perpendicular to the plane of the substrate, the conductive block 22 is at least partially overlapped with the touch signal line 11, and the conductive block 22 is electrically connected to the corresponding touch signal line 11 through at least one via 23 (only one via is schematically shown in fig. 2, and is not limited to the embodiment of the present invention); the left edge of the conductive block 22 is spaced apart from the right edge of the adjacent first common electrode block 21a by a distance d 1 The projection of the left edge of the touch signal line 11 on the plane of the transparent conductive layer 20 is separated from the right edge of the adjacent first common electrode block 21a by a distance d 2 The projection of the right edge of the touch signal line 11 on the plane of the transparent conductive layer 20 is separated from the left edge of the adjacent second common electrode block 21b by a distance d 3 ，d 2 ≥d 1 >d 3 . In the specific implementation d 2 May be about 4. Mu.m. This arrangement can enlarge the touch signal line 11 and the firstThe distance of the common electrode block 21a reduces the lateral electric field between the touch signal line 11 and the first common electrode block 21 a.
It can be understood that the array substrate further includes a plurality of pixel electrodes 50 extending in the second direction x and arranged in the first direction y, each of the scanning signal lines 30 is electrically connected to the gates of a row of thin film transistors 40 (the specific structure of the thin film transistors is not shown in fig. 2), and each of the data signal lines 12 is electrically connected to the sources of a column of thin film transistors 40; each pixel electrode 50 is electrically connected to the drain electrode of the corresponding thin film transistor 40.
According to the technical scheme, the transparent conductive layer comprises a plurality of conductive blocks, the conductive blocks are at least partially overlapped with the touch signal lines along the direction perpendicular to the plane of the substrate, and the conductive blocks are electrically connected with the corresponding touch signal lines through at least one via hole, namely, the conductive blocks are connected with the touch signal lines in parallel, so that the resistance of the touch signal lines is reduced; the distance between the first edge of the conductive block and the first edge of the first end of the adjacent first public electrode block is larger than the distance between the projection of the first edge of the touch signal line on the plane where the transparent conductive layer is located and the distance between the projection of the first edge of the adjacent first public electrode block and the distance between the projection of the first edge of the touch signal line and the first edge of the adjacent first public electrode block, so that the lateral parasitic capacitance of the touch signal line and the public electrode can be effectively weakened, the load of the touch signal line is reduced, and the risk of poor display is reduced.
On the basis of the embodiment, optionally, the distance between the second edge of the conductive block and the first edge of the second end of the adjacent second common electrode block is d 4 ，d 4 ≥d 3 The second edge of the conductive block extends along the first direction.
Illustratively, with continued reference to FIG. 2, the right edge of the conductive block 22 is spaced from the left edge of the adjacent second common electrode block 21b by a distance d 4 By setting d 4 ≥d 3 Thereby avoiding too small a distance between the conductive block 22 and the second common electrode block 21b and weakening the coupling between the conductive block 22 and the second common electrode block 21 b.
Optionally, the touch signal line further includes a dummy touch signal line, and the dummy touch signal line is insulated from the common electrode; the projection of the dummy touch signal line on the substrate is positioned between the projections of the adjacent two rows of common electrodes on the substrate.
For example, referring to fig. 1, the touch signal line further includes a dummy touch signal line 31 disposed between the two columns of common electrodes 4, and the dummy touch signal line 31 is not electrically connected to the common electrodes, so as to avoid uneven display of the area with other areas due to no wiring.
Optionally, an extension length of the conductive block along the first direction is the same as an extension length of the common electrode block along the first direction.
Fig. 3 is a schematic diagram illustrating a partial top view structure of another array substrate according to an embodiment of the present invention. Referring to fig. 3, since the dummy touch signal line 110 is insulated from the common electrode, the extension length of the conductive block 22 along the first direction y may be set to be the same as the extension length of the common electrode block 21 along the first direction y, so that the shape of the transparent conductive layer may be simplified and the process difficulty may be reduced.
Optionally, the conductive block has an extension length along the first direction smaller than an extension length of the common electrode block along the first direction, and the first end of the first common electrode block includes at least one protrusion.
For example, fig. 4 to fig. 7 are schematic partial top view structures of another array substrate according to the embodiment of the present invention, and referring to fig. 4 to fig. 7, an extension length of the conductive block 22 along the first direction y is smaller than an extension length of the common electrode 21 along the first direction y, and a right end of the first common electrode 21a includes at least one protrusion, so that an electrode shape of a sub-pixel corresponding to the right end of the first common electrode 21a is close to other sub-pixel shapes, and non-uniformity of display is avoided. In other embodiments, the number of the protrusions may be more, and only the distance between the protrusions and the conductive block needs to be ensured, and the protrusions may be designed according to practical situations during implementation.
It is understood that the first common electrode block 21a and the second common electrode block 21b shown in fig. 4 to 7 are connected, and the corresponding touch signal line is a dummy touch signal line.
Optionally, at least a portion of the protrusions extend to and are electrically connected to an adjacent second common electrode block.
Fig. 8 and fig. 9 are schematic partial top view structures of another array substrate according to an embodiment of the present invention, and referring to fig. 2, fig. 8 or fig. 9, one or two protrusions extend to the adjacent second common electrode block 21b and are electrically connected to the second common electrode block 21b, and touch signal lines corresponding to the embodiment are connected to the common electrodes in a one-to-one correspondence.
Fig. 10 and 11 are schematic partial top view structures of another array substrate according to an embodiment of the invention. In fig. 10, the dummy touch signal line 110 is shown, and in fig. 11, the touch signal line 11 is connected to the common electrode. Referring to fig. 10 and 11, optionally, the array substrate provided in this embodiment further includes a plurality of scanning signal lines 30 extending along the second direction x and arranged along the first direction y, where projections of the scanning signal lines 30 on the substrate are located between projections of two adjacent rows of common electrode blocks 21 on the substrate; the touch signal line 11 is provided with a via Kong Ji, the extension length of the via Kong Ji 111 in the second direction x is larger than the width of the touch signal line 11, the projection of the via Kong Ji 111 on the substrate coincides with the projection of the scan signal line 30 on the substrate at least partially, and the conductive block 22 extends to the region where the via base 111 is located and is electrically connected with the via base 111 through the via 23. By providing the Kong Ji 111, the area of the touch signal line 11 and the conductive block 22 can be increased, and the resistance of the touch signal line 11 can be reduced.
Optionally, with continued reference to fig. 10 or fig. 11, the array substrate provided in this embodiment further includes a plurality of thin film transistors 40 and pixel electrodes 50 arranged in an array; the gate electrode of each row of thin film transistors 40 is electrically connected to one scanning signal line 30, the source electrode of each column of thin film transistors 40 is electrically connected to one data signal line 12, and the drain electrode of each thin film transistor 40 is electrically connected to one pixel electrode 50.
It will be appreciated that each pixel electrode 50 may correspond to a sub-pixel of one light-emitting color, for example, a red sub-pixel, a green sub-pixel, and a blue sub-pixel, and that three sub-pixels of different light-emitting colors form a pixel unit, thereby realizing color display.
Alternatively, referring to fig. 2 to 11, the common electrode block 21 includes a plurality of openings 211 extending in the first direction y and arranged in the second direction x, the openings 211 having a width d in the second direction x 5 ，d 5 ＝d 1 。
The array substrate provided in this embodiment can be used in a liquid crystal display panel by providing a plurality of openings 211 on the common electrode block 21 to form an electric field with the pixel electrode for controlling the deflection of the liquid crystal, by designing d 5 ＝d 1 The gap between the conductive block 22 and the common electrode block 21 and the opening 211 can be formed through one process, which is advantageous in simplifying the manufacturing process.
Optionally, each common electrode block corresponds to a pixel area, and each pixel area includes a red sub-pixel area, a green sub-pixel area and a blue sub-pixel area; in the pixel area formed by the first common electrode block adjacent to the touch signal line, the blue sub-pixel area is adjacent to the touch signal line; the number of the open holes corresponding to the blue sub-pixel area is n, and the number of the open holes corresponding to the red sub-pixel area and the green sub-pixel area is n+1; wherein n is an integer greater than or equal to 2.
For example, referring to fig. 11, each of the common electrode blocks 21 corresponds to one pixel region P, and each of the pixel regions P includes a red sub-pixel region R, a green sub-pixel region G, and a blue sub-pixel region B; in the pixel region P formed by the first common electrode block 21a adjacent to the touch signal line 11, the blue sub-pixel region B is adjacent to the touch signal line 11; the blue sub-pixel region B corresponds to 2 openings 211, and the red sub-pixel region R and the green sub-pixel region B correspond to 3 openings 211.
It can be understood that when the display panel displays, the sensitivity of human eyes to blue light is low, so that defects are not easily seen by human eyes when the shapes of the common electrodes corresponding to the blue sub-pixels are different from those of the common electrodes corresponding to other sub-pixels, and in addition, the number of branch electrodes in the common electrodes is the same as that of other sub-pixels although the holes of the pixel electrodes corresponding to the blue sub-pixels are less, so that the display effect is not deteriorated. The number of the openings in fig. 11 is merely illustrative, and may be designed according to time conditions in the implementation, and in other embodiments, the red sub-pixel or the green sub-pixel may be designed to be adjacent to the touch signal line, which is not limited in the embodiments of the present invention.
The embodiment of the invention also provides a display panel, which comprises any one of the array substrates provided by the embodiment. Since the display panel provided by the embodiment of the present invention includes any one of the array substrates provided by the above embodiment, the display panel has the same or corresponding technical effects as those of the array substrate, and will not be described in detail herein.
Fig. 12 is a schematic structural diagram of a display device according to an embodiment of the invention. Referring to fig. 12, the display device 100 includes a display panel 200 provided in an embodiment of the present invention. The display device 100 may be a mobile phone, a tablet computer, an intelligent wearable device, etc.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements, combinations, and substitutions can be made by those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (12)
1. An array substrate, characterized by comprising:
a substrate base;
the first wiring layer and the transparent conductive layer are arranged on one side of the substrate base plate and are separated by the insulating layer;
the first wiring layer comprises a plurality of touch signal lines and data signal lines, the touch signal lines extend along a first direction and are distributed along a second direction, the transparent conductive layer comprises a plurality of common electrodes, the common electrodes are multiplexed into touch electrodes, each common electrode is electrically connected with at least one touch signal line, each common electrode comprises a plurality of connected common electrode blocks, the projection of each touch signal line on the substrate is located between the projections of two adjacent columns of common electrode blocks on the substrate, and the data signal lines are overlapped with the common electrodes partially;
the data signal line comprises a first data signal line and a second data signal line, the first data signal line and the second data signal line are respectively positioned at two sides of the touch signal line, and the distance between the first data signal line and the touch signal line is greater than the distance between the second data signal line and the touch signal line;
the common electrode block comprises a first common electrode block and a second common electrode block, the first common electrode block and the first data signal line are positioned on the same side of the touch signal line, and the second common electrode block and the second data signal line are positioned on the same side of the touch signal line;
the transparent conductive layer further comprises a plurality of conductive blocks, the conductive blocks are at least partially overlapped with the touch signal lines along the direction perpendicular to the plane of the substrate, and the conductive blocks are electrically connected with the corresponding touch signal lines through at least one via hole;
the distance between the first edge of the conductive block and the first edge of the first end of the adjacent first common electrode block is d 1 The projection of the first edge of the touch signal line on the plane of the transparent conductive layer is d from the first edge of the first end of the adjacent first common electrode block 2 The projection of the second edge of the touch signal line on the plane of the transparent conductive layer is d from the first edge of the second end of the adjacent second common electrode block 3 ，d 2 ≥d 1 >d 3 ；
The first edge of the conductive block, the first edge of the first end of the first common electrode block, the first edge of the touch signal line, the second edge of the touch signal line and the first edge of the second end of the second common electrode block extend along the first direction, the first end of the first common electrode block is the end, close to the touch signal line, of the first common electrode block, and the second end of the second common electrode block is the end, close to the touch signal line, of the second common electrode block.
2. The array substrate of claim 1, wherein a distance between the second edge of the conductive block and the first edge of the second end of the adjacent second common electrode block is d 4 ，d 4 ≥d 3 The second edge of the conductive block extends along the first direction.
3. The array substrate of claim 1, wherein the touch signal line further comprises a dummy touch signal line, the dummy touch signal line being insulated from the common electrode;
the projection of the dummy touch signal line on the substrate is positioned between the projections of the common electrodes of two adjacent columns on the substrate.
4. The array substrate of claim 3, wherein an extension length of the conductive block along the first direction is the same as an extension length of the common electrode block along the first direction.
5. The array substrate of claim 1, wherein an extension length of the conductive block in the first direction is smaller than an extension length of the common electrode block in the first direction, and a first end of the first common electrode block includes at least one protrusion.
6. The array substrate of claim 5, wherein at least a portion of the protrusions extend to and are electrically connected to the adjacent second common electrode blocks.
7. The array substrate according to claim 1, further comprising a plurality of scanning signal lines extending in the second direction and arranged in the first direction, wherein projections of the scanning signal lines on the substrate are located between projections of two adjacent rows of the common electrode blocks on the substrate;
the touch signal line is provided with a via hole base, the extension length of the through Kong Ji in the second direction is larger than the width of the touch signal line, the projection of the through Kong Ji on the substrate base plate is at least partially overlapped with the projection of the scanning signal line on the substrate base plate, and the conductive block extends to the area where the via hole base is located and is electrically connected with the via hole base through a via hole.
8. The array substrate of claim 7, further comprising a plurality of thin film transistors and pixel electrodes arranged in an array;
the grid electrode of each row of thin film transistors is electrically connected with one scanning signal line, the source electrode of each column of thin film transistors is electrically connected with one data signal line, and the drain electrode of each thin film transistor is electrically connected with one pixel electrode.
9. The array substrate of any one of claims 1 to 8, wherein the common electrode block includes a plurality of openings extending in the first direction and arranged in the second direction, the openings having a width d in the second direction 5 ，d 5 ＝d 1 。
10. The array substrate of claim 9, wherein each of the common electrode blocks corresponds to a pixel region, each pixel region including a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region;
in a pixel region formed by the first common electrode block adjacent to the touch signal line, the blue sub-pixel region is adjacent to the touch signal line;
the number of the open holes corresponding to the blue sub-pixel area is n, and the number of the open holes corresponding to the red sub-pixel area and the green sub-pixel area is n+1;
wherein n is an integer greater than or equal to 2.
11. A display panel comprising the array substrate of any one of claims 1 to 10.
12. A display device comprising the display panel of claim 11.
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| CN114020167A (en) * | 2021-10-28 | 2022-02-08 | Tcl华星光电技术有限公司 | Touch display panel and display device |
| CN114217466B (en) * | 2021-12-03 | 2024-03-22 | 厦门天马微电子有限公司 | Display panel and display device |
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| CN104865726A (en) * | 2015-06-04 | 2015-08-26 | 上海天马微电子有限公司 | Array substrate, display panel, display device and manufacturing method |
| CN106773227A (en) * | 2017-03-02 | 2017-05-31 | 上海天马微电子有限公司 | A kind of manufacture method of liquid crystal display device and liquid crystal display device |
| CN108227326A (en) * | 2018-02-01 | 2018-06-29 | 京东方科技集团股份有限公司 | Array substrate and its manufacturing method, touch-control display panel |
| CN109388265A (en) * | 2017-08-09 | 2019-02-26 | 京东方科技集团股份有限公司 | A kind of array substrate, touch-control display panel and display device |
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| CN104865726A (en) * | 2015-06-04 | 2015-08-26 | 上海天马微电子有限公司 | Array substrate, display panel, display device and manufacturing method |
| CN106773227A (en) * | 2017-03-02 | 2017-05-31 | 上海天马微电子有限公司 | A kind of manufacture method of liquid crystal display device and liquid crystal display device |
| CN109388265A (en) * | 2017-08-09 | 2019-02-26 | 京东方科技集团股份有限公司 | A kind of array substrate, touch-control display panel and display device |
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