CN107340919B - Array substrate, display panel and display device - Google Patents
Array substrate, display panel and display device Download PDFInfo
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- CN107340919B CN107340919B CN201710524556.4A CN201710524556A CN107340919B CN 107340919 B CN107340919 B CN 107340919B CN 201710524556 A CN201710524556 A CN 201710524556A CN 107340919 B CN107340919 B CN 107340919B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses array substrate, display panel and display device includes: the first touch signal line group and the second touch signal line group are connected with the touch electrodes in a one-to-one correspondence mode; wherein: the first touch signal line group comprises at least two touch signal lines, and each touch signal line in each first touch signal line group is connected to the same touch electrode; the second touch signal line group comprises at least one touch signal line, and each touch signal line in each second touch signal line group is connected to the same touch electrode; the number of the touch signal lines in the first touch signal line group is larger than that in the second touch signal line group. By arranging the array substrate, under the condition of additionally adding the touch electrodes, redundant touch signal lines are not added and are electrically connected with the added touch electrodes, so that the flexibility of the array substrate is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to an array substrate, a display panel and a display device.
Background
With the improvement of display technology, the display panel technology is also developing toward diversification. Users prefer a thin and light display panel with a touch function and high resolution. Existing touch technologies include self-capacitance touch technology and mutual capacitance touch technology. The self-contained touch panel only needs to form a touch conductor layer on the array substrate, so that the thickness of the array substrate is reduced, and the self-contained touch panel is more popular with people.
In the conventional self-contained array substrate, in order to make the array substrate lighter and thinner, the number of touch electrodes and the number of touch signal lines on the array substrate are generally manufactured according to the ratio of the array substrate. When the array substrate needs to be provided with the touch electrodes again, redundant touch signal lines are not needed to connect the touch electrodes to the integrated circuit for providing the touch signals, and therefore touch flexibility and touch precision of the array substrate needing to be additionally provided with the touch electrodes are reduced.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide an array substrate, a display panel and a display device, so as to solve the technical problems in the prior art.
In a first aspect, an embodiment of the present application provides an array substrate, including: a plurality of touch electrodes arranged in an array; the touch signal line groups comprise a first touch signal line group and a second touch signal line group; wherein: the first touch signal line group comprises at least two touch signal lines, and each touch signal line in each first touch signal line group is connected to the same touch electrode; the second touch signal line group comprises at least one touch signal line, and each touch signal line in each second touch signal line group is connected to the same touch electrode; the number of the touch signal lines in the first touch signal line group is larger than that in the second touch signal line group.
In some embodiments, the first touch signal line group includes 2n touch signal lines, and the second touch signal line group includes n touch signal lines, where n is a positive integer greater than or equal to 1.
In some embodiments, the first touch signal line group includes two touch signal lines, and the second touch signal line group includes one touch signal line.
In some embodiments, the array substrate includes an integrated circuit, the touch electrode includes a first touch electrode electrically connected to the first touch signal line group and a second touch electrode electrically connected to the second touch signal line group; the touch signal line extends along a first direction and is arranged along a second direction; along the first direction, the distance between the first touch electrode and the integrated circuit is greater than the distance between the second touch electrode and the integrated circuit; the first direction intersects the second direction.
In some embodiments, the display panel further comprises a third bezel region, a display region, and a fourth bezel region disposed along the second direction, wherein: the touch signal line group positioned at the edge of the array substrate and close to the third frame area and/or the fourth frame area is a first touch signal line group.
In some embodiments, the array substrate further includes a pixel electrode layer, the pixel electrode layer is provided with a plurality of sub-pixels arranged in an array, and the orthographic projection of the touch signal line to the pixel electrode layer along the first direction is located between two columns of sub-pixels arranged along the second direction.
In some embodiments, the plurality of sub-pixels includes a first color sub-pixel and a second color sub-pixel, wherein: each touch signal line is adjacent to the first color sub-pixel and the second color sub-pixel.
In some embodiments, the array substrate further includes a metal conductor layer, and each touch signal line is formed on the metal conductor layer; the array substrate further comprises a first conductor layer, each touch electrode is formed on the first conductor layer, an insulating layer is arranged between the first conductor layer and the metal conductor layer, the insulating layer is provided with a plurality of via holes, and each touch signal line is connected to each touch electrode through the via hole.
In some embodiments, the array substrate further includes a conductor block disposed on the pixel electrode layer, and the touch signal line and the touch electrode are electrically connected through the conductor block.
In some embodiments, the array substrate further comprises a common electrode layer comprising a plurality of common electrodes; wherein: and each common electrode is multiplexed as a touch electrode.
In some embodiments, the array substrate includes an upper frame region extending along the second direction and a lower frame region extending along the second direction, and the upper frame region, the touch signal lines and the lower frame region are sequentially arranged; the array substrate further comprises an electrostatic protection circuit and/or a display test circuit, and the electrostatic protection circuit and/or the display test circuit are/is arranged in the upper frame area; the integrated circuit is arranged in the lower frame area of the array substrate; one side of each touch signal line close to the upper frame area is electrically connected with the electrostatic protection circuit and/or the test circuit, and one side of each touch signal line close to the lower frame area is connected to the integrated circuit.
In some embodiments, the touch electrode is a self-contained touch electrode.
In a second aspect, the present application provides a display panel, where the display panel includes the array substrate as described above, and the display panel further includes a color film substrate disposed opposite to the array substrate, and a black matrix is further formed on the color film substrate, and the black matrix covers an orthographic projection of the touch signal line to the color film substrate.
In a third aspect, embodiments of the present application provide a display device including the display panel described above.
According to the scheme of the embodiment of the application, the first touch signal line group and the second touch signal line group which are electrically connected with the touch electrodes arranged in an array are arranged on the array substrate, the first touch signal line group is connected to the same touch electrode, and the second touch signal line group is connected to the same touch electrode. Therefore, under the condition that the number and the arrangement mode of the touch signal lines are determined, a larger number of touch electrodes can be arranged on the array substrate, the touch signal lines do not need to be additionally arranged on the array substrate, and the touch sensitivity of the array substrate is improved while the frame range of the array substrate is maintained.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram illustrating an array substrate according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another array substrate provided in the embodiment of the present application;
fig. 3 is a schematic diagram illustrating a positional relationship between a touch signal line and a pixel electrode according to an embodiment of the present disclosure;
fig. 4 a-4 b are schematic diagrams illustrating a position relationship between a touch electrode and a touch signal line provided in the present application;
fig. 5 is a schematic structural diagram of yet another array substrate provided in the present application;
fig. 6 shows a schematic structural diagram of a display device provided in an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application 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.
Please refer to fig. 1, which schematically illustrates a structure of an array substrate provided in the present application.
As shown in fig. 1, the array substrate 100 may include a plurality of touch electrodes 11, and the touch electrodes 11 are arranged in an array. The touch electrode 11 may be formed in a rectangular shape, a square shape, a triangular shape, etc., and the shape of the touch electrode is not limited herein. The touch electrode 11 may be formed of a transparent conductive material or may be formed of a metal mesh.
The array substrate 100 is provided with a plurality of touch signal line groups, wherein the touch signal line group includes a first touch signal line group 12 and a second touch signal line group 13. Each of the touch signal line groups is connected to the touch electrodes 11 in a one-to-one correspondence.
In this embodiment, the first touch signal line group 12 may include at least two touch signal lines 14, that is, 3 touch signal lines, 4 touch signal lines, and the like, which is not limited herein. As shown in fig. 1, the touch signal lines 14 in the same first touch signal line group 12 are all connected to the same touch electrode. The second touch signal line group 13 may include at least one touch signal line 14, and each touch signal line 14 in the same second touch signal line group 13 is connected to the same touch electrode.
In this embodiment, the number of the touch signal lines 14 in the first touch signal line group 12 is greater than the number of the touch signal lines 14 in the second touch signal line group 13.
In this embodiment, the touch signal lines 14 and the touch electrodes 11 in each of the touch signal line groups may be disposed on the same conductive layer, or may be disposed on different conductive layers. When the touch signal lines 14 are disposed on different layers from the touch electrodes 11, the touch signal lines may be electrically connected to the touch electrodes 11 through the vias 15.
In a specific application scenario, each touch signal line in the second touch signal line group 13 may be obtained by splitting one or more touch signal lines 14 connected together in the first touch signal line group 12. As shown in fig. 1, two adjacent second touch signal line groups 13 including one touch signal line can be obtained by splitting the same first touch signal line group 12 including two connected touch signal lines. And simultaneously connecting the split touch signal lines 14 to different touch electrodes 11 through the via holes 15.
As can be seen from fig. 1, each touch signal line 14 extends along a first direction X and is disposed along a second direction Y, wherein the X direction intersects the Y direction. Here, the X direction may be regarded as a row direction, and the Y direction may be regarded as a column direction. The connection modes of the touch electrodes 11 in the same row and the touch signal lines are the same. For example, in fig. 1, each touch electrode 11 in the first row is connected to one first touch signal line group 12 in a one-to-one correspondence manner, and each touch electrode 11 in the last row is connected to one second touch signal line group 13 in a one-to-one correspondence manner.
In this embodiment, in order to avoid the visibility of the display of the touch signal line 14, the orthographic projection of the touch signal line 14 to the pixel electrode layer on the array substrate 100 is usually located between the display pixels. Since the number and arrangement of the display pixels on the array substrate 100 are determined, the number of the touch signal lines that can be disposed in the pixel space area is also determined. Since the number of the touch signal lines included in the first touch signal line group is greater than the number of the touch signal lines included in the second touch signal line group, compared with a scheme in which each of the touch electrodes is electrically connected to each of the touch signal lines of one of the first touch signal line groups, by electrically connecting a part of the touch electrodes to each of the touch signal lines in the first touch signal line group and electrically connecting another part of the touch electrodes to each of the touch signal lines in the second touch signal line group, the number of the touch electrodes can be set as much as possible on the premise that the number of the touch signal lines is not changed, thereby improving the touch detection accuracy of the array substrate 100.
In some optional implementations of the embodiment, the first touch signal line group 12 may include 2n touch signal lines, and the second touch signal line group 13 may include n touch signal lines, so that the touch signal lines in the first touch group 12 may be divided into two and provided to the two touch electrodes, thereby improving the uniformity of the distribution of the touch signal lines on the array substrate.
In some optional implementations of the present embodiment, the first touch signal line group 12 includes two first touch signal lines, and the second touch signal line group 13 includes one touch signal line. Fig. 1 shows a case where the first touch signal line group 12 includes two touch signal lines and the second touch signal line group 13 includes one touch signal line.
It should be noted that fig. 1 only illustrates the connection relationship between the touch electrodes and the touch signal lines by taking that the first touch signal line group includes 2 touch signal lines and the second touch signal line group includes 1 touch signal line as an example, and the embodiment of the present application does not specially limit the number of touch signal lines in the first touch signal line group and the number of touch signal lines in the first touch signal line group. In an actual scenario, the number of touch signal lines in the first touch signal line group and the number of touch signal lines in the second touch signal line group may be determined according to the requirement of the number of touch electrodes.
Continuing to refer to fig. 2, a schematic diagram of another embodiment of an array substrate provided by the present application is shown.
As shown in fig. 2, the array substrate 200 includes a plurality of touch electrodes, and a plurality of touch signal line groups electrically connected to the touch electrodes, where the touch signal line group includes a first touch signal line group 22 and a second touch signal line group 23, each first touch signal line group 22 includes at least two touch signal lines 24, and each second touch signal line group 23 includes at least one touch signal line 24.
In this embodiment, the array substrate 200 further includes an integrated circuit 26, wherein the touch electrode 21 includes a first touch electrode 211 electrically connected to the first touch signal line group 22 and a second touch electrode 212 electrically connected to the second touch signal line group 23. The touch signal lines 24 extend along a first direction X and are disposed along a second direction Y, wherein the first direction X intersects the second direction Y. Along the first direction X, the distance between the first touch electrode 211 and the integrated circuit 26 is greater than the distance between the second touch electrode 212 and the integrated circuit 26.
Generally, the array substrate includes a display area and a frame area located around the display area, as shown in fig. 2, an upper frame area, a touch signal line 24 and a lower frame area are sequentially arranged along a first direction X, the integrated circuit 26 is disposed in the lower frame area of the array substrate 200, the lower frame area is located in a non-display area of the array substrate 200, the touch electrode is generally located in the display area of the array substrate 200, various signal traces such as a touch electrode and a data signal line connecting the integrated circuit 26 and the display area are disposed between the display area and the non-display area of the array substrate, and the signal traces and the touch electrode 22 are generally disposed in different conductor layers. In order to meet the design of the narrow frame of the array substrate, the upper frame area of the array substrate is usually set to be narrower, and there are no more positions where the traces, the touch electrodes, and the like can be arranged. Therefore, when a row of touch electrodes needs to be added on the array substrate 200 along the first direction X, the touch electrodes need to be added are usually disposed near the lower frame region of the integrated circuit 26. The added touch electrodes are the second touch electrodes 212. The touch electrode before the row is added is the first touch electrode 211.
The second touch electrodes 212 need to be connected to the integrated circuit 26 by corresponding touch signal lines, and since the number of the previous first touch electrodes 211 is determined, the number of the touch signal lines connected to the first touch electrodes 211 is determined, and it is difficult to increase the number of the touch signal lines. Therefore, the touch signal line group electrically connected to the first touch electrode 211 is set as a first touch signal line group, when one or more rows of second touch electrodes 212 need to be added, one or more touch signal lines in the first touch signal line group electrically connected to the first touch electrode 211 closest to the second touch electrode 212 can be separated and connected to the second touch electrode 212 through punching, and the separated touch signal line group connected to the second touch electrode 212 is the second touch signal line group 23.
As can be seen from the above, unlike the embodiment shown in fig. 1, the present embodiment further defines the positions of the first touch electrode, the first touch signal line group, and the second touch signal line group on the array substrate. By this definition, the touch accuracy of the array substrate can be further improved.
It should be noted that, the embodiment shown in fig. 2 only illustrates a case where one row of touch electrodes is added along the first direction X, which is not limited in the present application, and multiple rows of touch electrodes may be disposed according to the needs of the scene. Correspondingly, the number of the first touch signal line groups is correspondingly increased according to the number of the rows of the set touch electrodes.
Optionally, the array substrate 200 further includes a third frame area, a display area AA and a fourth frame area arranged along the second direction Y, the common touch signal line is arranged in the display area AA, and the touch signal line group arranged at the edge of the array substrate 200 close to the third frame area and/or the fourth frame area is the first touch signal line group 22. By setting the touch signal line group located at the edge of the array substrate 200 as the first touch signal line group 22, the risk of touch signal line breakage at the edge of the array substrate due to exposure problems is avoided, and thus good contact between the touch signal line located at the edge and the touch electrode is improved.
Please refer to fig. 3, which shows a schematic diagram of a position relationship between a touch signal line and a pixel electrode.
As shown in fig. 3, the array substrate 300 is further provided with a pixel electrode layer provided with a plurality of sub-pixels 31 arranged in an array. As shown in fig. 3, the sub-pixels 31 may be divided into a plurality of sub-pixel groups, each of which includes a red sub-pixel, a blue sub-pixel, and a green sub-pixel. The sub-pixels in two adjacent rows are arranged in a staggered mode.
The array substrate 300 further includes a plurality of first touch signal line groups including two first touch signal lines 32 and a plurality of second touch signal line groups including one touch signal line 32. The touch signal line 32 is formed on the metal conductor layer, and is located at a different layer from the pixel electrode layer. In the first direction X shown in fig. 3, the orthographic projection of the touch signal line 32 onto the pixel electrode layer is located between two columns of sub-pixels arranged in the second direction Y shown in fig. 3.
Alternatively, the sub-pixels may include a first color sub-pixel and a second color sub-pixel, where the first color sub-pixel may be any one of the red, green, or blue sub-pixels, and the second color sub-pixel may also be any one of the red, green, or blue sub-pixels, but the first color sub-pixel and the second color sub-pixel are sub-pixels with different colors. Each touch signal line 32 is disposed between the first color sub-pixel and the second color sub-pixel, that is, each touch signal line 32 is adjacent to the first color sub-pixel and the second color sub-pixel. By arranging each touch signal line 32 between the first color sub-pixel and the second color sub-pixel, uneven display due to the distribution of the touch signal lines when the display panel displays images due to the arrangement of the touch signal lines between the sub-pixels of different colors can be reduced, thereby improving the display uniformity of the array substrate.
Please refer to fig. 4a and fig. 4b, which are schematic diagrams illustrating a position relationship between the touch electrode and the touch signal line provided in the present application.
As shown in fig. 4a, the array substrate 400 includes a substrate 41 and a metal conductor layer 42 disposed on the substrate 41. The touch signal line 421 is formed on the metal conductor layer 42. The array substrate 400 further includes a first conductive layer 43, and the first conductive layer 43 is disposed on a side of the pixel electrode layer away from the substrate. The touch electrode 431 is formed on the first conductive layer 43. An insulating layer 44 is disposed between the first conductive layer 43 and the metal conductive layer 42, a plurality of via holes 45 are formed in the insulating layer 44, and each touch signal line is electrically connected to each touch electrode 431 located on the first conductive layer 43 through the via hole 45.
As shown in fig. 4b, another connection manner between the touch electrode and the touch signal line is shown. The array substrate 400 includes a substrate 41, and a metal conductor layer 42, a first conductor layer 43, a first insulation layer 44, a second conductor layer 46, and a second insulation layer 47 are disposed on the substrate 41. Here, the first insulating layer 44 is formed between the metal conductor layer 42 and the first conductor layer 43, and the second insulating layer 47 is formed between the first conductor layer 43 and the second conductor layer 46. Thus, the first insulating layer 44 separates the first conductor layer 43 from the metal conductor layer 42, and the second insulating layer 47 separates the first conductor layer 43 from the second conductor layer 46.
The touch electrode 431 is formed to be in contact with the first conductive layer 43, a plurality of conductive blocks 461 are formed on the second conductive layer 46, a plurality of first via holes 471 are formed on the second insulating layer 47, and each touch electrode 431 is electrically connected to the conductive block 461 through the first via hole 471.
A plurality of second via holes 472 are further formed in the second insulating layer 47, a plurality of third via holes 441 are further formed in the first insulating layer 44, and a plurality of touch signal lines 421 are formed in the metal conductor layer 42. As can be seen in fig. 4b, the second via 472 communicates with the third via 441. The conductive block 461 is electrically connected to one of the touch signal lines 421 located in the metal conductive layer 42 through the second via hole 472 and the third via hole 441. A bridging structure is formed among the first via 471, the second via 472, and the third via 441. In this way, one of the touch signal lines 421 located in the metal conductor layer 42 is electrically connected to the conductor block 461 located in the second conductor layer 46 through the second via hole 472, the third via hole 441 and one of the touch electrodes 431 located in the first conductor layer 43 through the first via hole 471, so that the touch signal line 421 and the touch electrode 431 are electrically connected.
With continued reference to fig. 5, a schematic structural diagram of yet another array substrate provided herein is shown.
As shown in fig. 5, a plurality of touch electrodes 521 arranged in an array and a plurality of touch signal lines 511 are disposed on the array substrate 500, and each touch electrode 521 is connected to at least one of the touch signal lines 511.
The display panel 500 is further provided with an integrated circuit 51, the integrated circuit 51 is provided with a plurality of touch signal output ends, and each touch signal line 511 is connected with the touch signal output ends in a one-to-one correspondence manner. The integrated circuit 51 can be used for transmitting a touch driving signal to each touch electrode 521 through the touch signal line 511, and receiving a touch detection signal collected by the touch electrode 511.
In some optional implementations of the present embodiment, during displaying, the touch electrode 521 may be reused as a common electrode. Thus, during the touch period, the touch electrode 521 serves as a touch electrode to receive the touch driving signal provided by the integrated circuit 51 and transmit the touch detection signal to the integrated circuit 51; during the display period, the touch electrode 521 functions as a common electrode and cooperates with a pixel electrode (not shown) to control the display of the image. The touch electrode is reused as the common electrode, so that the number of film layers of the display panel can be reduced, the thickness of the display panel is reduced, and meanwhile, the process of manufacturing the display panel is simplified.
The array substrate 500 further includes an upper frame region and a lower frame region extending along the second direction Y, and the upper frame region, the touch signal lines 511 and the lower frame region are sequentially arranged along the first direction X. An electrostatic protection circuit and/or a display test circuit are also disposed on the array substrate 500, and both the electrostatic protection circuit and/or the display test circuit may be disposed in the upper bezel region. One side of the touch signal line 511 close to the upper frame area is electrically connected with the electrostatic protection circuit and/or the test circuit. Since the array substrate 500 is provided with various traces, static electricity is generated between the traces and other conductive layers due to the accumulation of charges, and the touch signal line is electrically connected to the static electricity protection circuit, so that the static electricity generated by the excessive charges accumulated on the touch signal line 511 can be prevented, and short circuit between the metal traces or between the metal traces and other conductive layers can be caused. By providing a test circuit on the array substrate 500 and electrically connecting the touch signal line 511 to the test circuit, the short circuit of the touch signal line 511 and the electrical connection between the touch signal line 511 and the touch electrode can be tested, so that whether the touch signal line 511 is short-circuited or broken can be quickly detected.
With continued reference to fig. 5, the touch method of the array substrate shown in fig. 5 is self-contained touch driving. A capacitor C1 is formed between the touch electrode 521 and the common ground on the array substrate 500, and when the array substrate 500 is not touched by a finger, the signals received by the integrated circuit 51 from the touch electrode 521 are all the same. Taking a finger touching one of the touch electrodes as an example, when the finger touches the array substrate, a capacitance C2 is generated between the finger and the array substrate, when the integrated circuit 51 provides the touch driving signal F1 to the touch electrode 521, a touch sensing signal F3 is obtained from the touch electrode of the array substrate touched by the finger, the touch sensing signal F3 is lower than the pulse level of the touch sensing signal F2 of the other touch electrodes, and the touch sensing signal F3 is transmitted to the integrated circuit 51 through the touch signal line 511 connected to the touch electrode 521. The integrated circuit 51 obtains the position touched by the user's finger based on the calculation of the change in the potential of the pulse signal.
In this embodiment, the array substrate shown in fig. 5 further includes a plurality of data signal lines and a plurality of scan signal lines arranged to intersect the data signal lines, wherein the scan signal lines are used for transmitting scan signals to the gates of the thin film transistors in each row of the array substrate in a time-sharing manner, and the data signal lines are used for transmitting data signals to the sources or the drains of the thin film transistors in each column in a time-sharing manner. The data signal lines and the scanning signal lines are crossed with each other to define a pixel array, the pixel array comprises a plurality of sub-pixel units, and the projection of each touch electrode to the array substrate covers the projection of at least one sub-pixel unit to the substrate. The scanning signal lines, the data signal lines and the pixel array belong to the prior art and are not described herein again. It should be noted that, on the array substrate, the data signal line may be disposed on the same layer as the source or the drain of the thin film transistor, and the scan signal line may be disposed on the same layer as the gate of the thin film transistor. The extending direction of the touch signal lines may be the same as the extending direction of the data signal lines, or may be the same as the extending direction of the scan signal lines, and the extending direction of the touch signal lines is specifically set according to the position of the integrated circuit 51 on the array substrate.
The present application also provides a display panel including the array substrate as described in any one of the above embodiments. The display panel further comprises a color film substrate arranged opposite to the array substrate, and a black matrix is formed on the color film substrate and covers the orthographic projection of the touch signal line to the color film substrate. By arranging the touch signal lines below the black matrix orthographic projection, the display panel is prevented from being developed on the display panel when the display panel performs pixel display, and the display effect of the display panel is improved.
The present embodiment proposes a display device, as shown in fig. 6. The display device 600 according to the present embodiment can be used in various devices such as a smart phone, a tablet terminal, a mobile phone terminal, a notebook-type personal computer, and a game device. Specifically, the display device 600 includes the display panel mentioned in any of the foregoing embodiments.
It will be appreciated by those skilled in the art that the scope of the claims referred to in this application is not limited to the particular combination of features described above, but also encompasses other embodiments in which any combination of the features described above or their equivalents is possible without departing from the spirit of the claims. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (11)
1. An array substrate, comprising:
a plurality of touch electrodes arranged in an array;
the touch signal line groups comprise a first touch signal line group and a second touch signal line group; wherein:
the first touch signal line group comprises at least two touch signal lines, and each touch signal line in each first touch signal line group is connected to the same touch electrode;
the second touch signal line group comprises at least one touch signal line, and each touch signal line in each second touch signal line group is connected to the same touch electrode;
the number of the touch signal lines in the first touch signal line group is larger than that of the touch signal lines in the second touch signal line group;
the array substrate further comprises a pixel electrode layer, the pixel electrode layer is provided with a plurality of sub-pixels which are arranged in an array mode, and the orthographic projection of the touch signal line to the pixel electrode layer along the first direction is located between two columns of sub-pixels which are arranged along the second direction;
the plurality of sub-pixels include a first color sub-pixel and a second color sub-pixel, wherein:
each touch signal line is adjacent to the first color sub-pixel and the second color sub-pixel;
the first color sub-pixel and the second color sub-pixel present different display colors.
2. The array substrate of claim 1, wherein the first touch signal line group comprises 2n touch signal lines, and the second touch signal line group comprises n touch signal lines, wherein n is a positive integer greater than or equal to 1.
3. The array substrate of claim 1, wherein the array substrate comprises an integrated circuit, and the touch electrodes comprise a first touch electrode electrically connected to the first touch signal line group and a second touch electrode electrically connected to the second touch signal line group;
the touch signal line extends along a first direction and is arranged along a second direction;
along the first direction, the distance between the first touch electrode and the integrated circuit is larger than the distance between the second touch electrode and the integrated circuit;
the first direction intersects the second direction.
4. The array substrate of claim 3, further comprising a third frame region, a display region, and a fourth frame region disposed along the second direction, wherein: and the touch signal line group positioned at the edge of the array substrate and close to the third frame area and/or the fourth frame area is the first touch signal line group.
5. The array substrate of claim 1, further comprising a metal conductor layer, wherein each touch signal line is formed on the metal conductor layer;
the array substrate further comprises a first conductor layer, each touch electrode is formed on the first conductor layer, an insulating layer is arranged between the first conductor layer and the metal conductor layer, the insulating layer is provided with a plurality of via holes, and each touch signal line is connected to each touch electrode through the via hole.
6. The array substrate of claim 1, further comprising a conductor block disposed on the pixel electrode layer, wherein the touch signal line and the touch electrode are electrically connected through the conductor block.
7. The array substrate of claim 1, further comprising a common electrode layer, wherein the common electrode layer comprises a plurality of common electrodes; wherein:
and multiplexing the common electrodes into the touch electrodes.
8. The array substrate according to claim 3 or 4, wherein the array substrate comprises an upper frame area extending along the second direction and a lower frame area extending along the second direction, and the upper frame area, the touch signal line and the lower frame area are sequentially arranged;
the array substrate further comprises an electrostatic protection circuit and/or a display test circuit, and the electrostatic protection circuit and/or the test circuit are/is arranged in the upper frame area;
the integrated circuit is arranged in a lower frame area of the array substrate;
one side of each touch signal line, which is close to the upper frame area, is electrically connected with the electrostatic protection circuit and/or the test circuit, and one side of each touch signal line, which is close to the lower frame area, is connected to the integrated circuit.
9. The array substrate of claim 1, wherein the touch electrode is a self-capacitance touch electrode.
10. A display panel comprising the array substrate according to any one of claims 1 to 9;
the display panel further comprises a color film substrate arranged opposite to the array substrate, and a black matrix is further formed on the color film substrate and covers the orthographic projection of the touch signal line to the color film substrate.
11. A display device characterized in that the display device comprises the display panel according to claim 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710524556.4A CN107340919B (en) | 2017-06-30 | 2017-06-30 | Array substrate, display panel and display device |
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| CN201710524556.4A CN107340919B (en) | 2017-06-30 | 2017-06-30 | Array substrate, display panel and display device |
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| CN107340919B true CN107340919B (en) | 2020-11-03 |
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| CN108446053B (en) * | 2018-03-27 | 2021-03-26 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method thereof and display device |
| CN110262689B (en) * | 2019-06-10 | 2021-01-01 | 武汉华星光电技术有限公司 | Embedded touch display panel and array substrate thereof |
| CN111399697A (en) | 2020-04-30 | 2020-07-10 | 武汉华星光电技术有限公司 | Thin film transistor array substrate and touch display panel |
| CN112905052A (en) * | 2021-03-05 | 2021-06-04 | 合肥京东方光电科技有限公司 | Array substrate, preparation method thereof and touch display device |
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| CN104951143B (en) * | 2015-07-27 | 2020-05-08 | 京东方科技集团股份有限公司 | Array substrate, touch panel and display device |
| US10025410B2 (en) * | 2015-12-28 | 2018-07-17 | Lg Display Co., Ltd. | Display device with touch sensor |
| CN206193729U (en) * | 2016-11-02 | 2017-05-24 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
| CN206479736U (en) * | 2017-02-28 | 2017-09-08 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
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