CN112527159B - Touch substrate and display device - Google Patents
Touch substrate and display device Download PDFInfo
- Publication number
- CN112527159B CN112527159B CN202011520059.5A CN202011520059A CN112527159B CN 112527159 B CN112527159 B CN 112527159B CN 202011520059 A CN202011520059 A CN 202011520059A CN 112527159 B CN112527159 B CN 112527159B
- Authority
- CN
- China
- Prior art keywords
- touch
- line
- main
- electrode
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims abstract description 7
- 238000007667 floating Methods 0.000 claims description 26
- 239000003086 colorant Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000003071 parasitic effect Effects 0.000 description 16
- 230000000875 corresponding effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 11
- 230000001965 increasing effect Effects 0.000 description 11
- 238000001514 detection method Methods 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 9
- 230000002596 correlated effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Abstract
The invention provides a touch substrate and a display device, wherein the touch substrate comprises a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrodes comprise first touch units, and the second touch electrodes comprise second touch units; the first touch unit comprises a first main touch part, the second touch unit comprises a second main touch part, and a touch capacitor is formed between the first main touch part and the second main touch part; the first touch electrode and the second touch electrode are mesh electrodes, the first main touch part comprises a first main touch line group and a second main touch line group, the first main touch line group comprises first main touch lines, the second main touch line group comprises second main touch lines, and the distance between two adjacent first main touch lines in the same first main touch line group is smaller than the distance between two adjacent first main touch line groups; and/or the distance between two adjacent second main touch lines in the same second main touch line group is smaller than the distance between two adjacent second main touch line groups.
Description
Technical Field
The invention relates to the technical field of touch control, in particular to a touch control substrate and a display device.
Background
With the rapid development of display technology, touch technology has been applied to various electronic devices. According to the working principle, the touch screen of the electronic device can be divided into: capacitive, resistive, optical inductive, etc. The capacitive touch screen has the advantages of high sensitivity, long service life, high light transmittance and the like, and is widely applied to various display panels.
The mutual capacitance type touch screen is one of the capacitive touch screens, and comprises a driving electrode and a sensing electrode, wherein the driving electrode and the sensing electrode are arranged in a crossing mode, a capacitor is formed at the crossing position, when a finger of a user touches the touch screen, the capacitor near a touch point changes, the sensing electrode can transmit the change of the capacitor to a touch detection module, and the touch detection module can determine the coordinate of the touch point according to the changed capacitor, so that touch identification is realized.
However, in the conventional mutual capacitance type touch screen, due to the fact that the resistances of the driving electrode and the sensing electrode are large, the transmission of signals on the touch electrode is obviously attenuated, so that when touch detection is performed, the change amount of the touch capacitance of a part of area is small, the touch detection module is difficult to determine the coordinates of a touch point according to the small change amount of the capacitance, and therefore the problems of poor signal to noise ratio and the like are caused.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a touch substrate and a display device.
In order to achieve the above object, the present invention provides a touch substrate, which includes a plurality of first touch electrodes and a plurality of second touch electrodes, wherein the first touch electrodes include a plurality of first touch units electrically connected, and the second touch electrodes include a plurality of second touch units electrically connected; the first touch unit comprises at least one first main touch part, the second touch unit comprises at least one second main touch part, the first main touch part corresponds to the second main touch part one by one, and a touch capacitor is formed between the first main touch part and the corresponding second main touch part;
the first touch electrodes and the second touch electrodes are mesh electrodes, the first main touch portion comprises a plurality of first main touch line groups and a plurality of second main touch line groups, the first main touch line groups comprise a plurality of first main touch lines extending along a first direction, the second main touch line groups comprise a plurality of second main touch lines extending along a second direction, and the distance between two adjacent first main touch lines in the same first main touch line group is smaller than the distance between two adjacent first main touch line groups; and/or the distance between two adjacent second main touch lines in the same second main touch line group is smaller than the distance between two adjacent second main touch line groups.
Optionally, the first touch unit further includes: the first auxiliary touch control part is electrically connected with the first main touch control part;
the first auxiliary touch control part comprises at least one first auxiliary touch control line and at least one second auxiliary touch control line, the first auxiliary touch control line is connected with the first main touch control part, and the second auxiliary touch control line is insulated from the first auxiliary touch control line and the first main touch control part.
Optionally, in the same first touch unit,
the first auxiliary touch line and at least one first main touch line are positioned on the same straight line, or the first auxiliary touch line and at least one second main touch line are positioned on the same straight line; the second auxiliary touch line and at least one first main touch line are positioned on the same straight line, or the second auxiliary touch line and at least one second main touch line are positioned on the same straight line.
Optionally, the first touch electrode further includes a first connection unit extending along the second direction, and the plurality of first touch units are connected with the first connection unit; the second touch electrode further comprises a second connecting unit extending along the second direction, and a plurality of second touch units are connected with the second connecting unit; the first connection unit and the second connection unit each include a plurality of electrode lines;
Between any adjacent first connection units and second connection units, the first touch units and the second touch units are alternately arranged along the second direction, and the extending direction of the first auxiliary touch line is the same as that of the first main touch line; the extending direction of the second auxiliary touch line is the same as that of the first main touch line; the first auxiliary touch control line is positioned on the same straight line with at least one electrode line in the first connecting unit and at least one electrode line in the second connecting unit.
Optionally, the second main touch portion includes a plurality of third main touch line groups and a plurality of fourth main touch line groups, the third main touch line groups include a plurality of third main touch lines extending along the first direction, the fourth main touch line groups include a plurality of fourth main touch lines extending along the second direction, and a distance between two adjacent third main touch lines in the same third main touch line group is smaller than a distance between two adjacent third main touch line groups; and/or the distance between two adjacent fourth main touch lines in the same fourth main touch line group is smaller than the distance between two adjacent fourth main touch line groups.
Optionally, the second touch unit further includes: the second auxiliary touch control part is electrically connected with the second main touch control part and comprises at least one third auxiliary touch control line and at least one fourth auxiliary touch control line, the third auxiliary touch control line is connected with the second main touch control part, and the fourth auxiliary touch control line is insulated from the third auxiliary touch control line and the second main touch control part.
Optionally, in the same second touch unit,
the third auxiliary touch line and at least one third main touch line are positioned on the same straight line, or positioned on the same straight line with at least one fourth main touch line; the fourth auxiliary touch line and at least one third main touch line are positioned on the same straight line, or positioned on the same straight line with at least one fourth main touch line.
Optionally, the first touch electrode further includes a first connection unit extending along the second direction, and the plurality of first touch units are connected with the first connection unit; the second touch electrode further comprises a second connecting unit extending along the second direction, and a plurality of second touch units are connected with the second connecting unit; the first connection unit and the second connection unit each include a plurality of electrode lines;
Between any adjacent first connection units and second connection units, the first touch units and the second touch units are alternately arranged along the second direction, and the extension direction of the third auxiliary touch line is the same as that of the third main touch line; the extending direction of the fourth auxiliary touch line is the same as that of the third main touch line; the third auxiliary touch control line is positioned on the same straight line with at least one electrode line in the first connecting unit and at least one electrode line in the second connecting unit.
Optionally, the plurality of first touch units and the plurality of second touch units are all distributed in an array, the touch substrate further comprises a bridging electrode and a connecting electrode, the bridging electrode is connected with two adjacent first touch units arranged along a first direction, the connecting electrode is connected with two adjacent second touch units arranged along a second direction, the first direction is one of a row direction and a column direction, and the second direction is the other of the row direction and the column direction;
the bridging electrode comprises a bridging electrode line and a first floating electrode line, the bridging electrode line is connected with a first main touch line and/or the first auxiliary touch line in two adjacent first touch units, and the first touch units and the bridging electrode line are insulated from the first floating electrode line at intervals;
The connecting electrode comprises a connecting electrode wire and a second floating electrode wire, the connecting electrode wire is connected with a third main touch wire and/or a third auxiliary touch wire in two adjacent second touch units, and the second touch units and the connecting electrode wire are insulated from the second floating electrode wire at intervals.
The invention also provides a display device, which comprises a display panel and the touch substrate, wherein the display panel comprises a plurality of sub-pixels and a spacing area for spacing the sub-pixels from each other,
orthographic projections of the first touch electrode and the second touch electrode on the display panel are located in the interval region.
Optionally, the display panel includes a plurality of sub-pixels, and the plurality of sub-pixels are divided into a plurality of pixel units, each pixel unit includes a plurality of sub-pixels, and the colors of the sub-pixels in the same pixel unit are different;
the distance between the edges of the first main touch control part and the corresponding second main touch control part, which are away from each other, is 1-10 times of the width of the pixel unit.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
Fig. 1 is a schematic structural diagram of a first touch electrode according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second touch electrode according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first touch electrode and a second touch electrode according to an embodiment of the present invention;
FIG. 4 is an enlarged view of region B of FIG. 3;
fig. 5 is a cross-sectional view of a bridging electrode line and a connecting electrode line according to an embodiment of the present invention;
fig. 6 is a schematic diagram of another structure of a first touch electrode according to an embodiment of the present invention;
fig. 7 is a schematic diagram of another structure of a second touch electrode according to an embodiment of the present invention;
fig. 8 is a schematic diagram of another structure of a first touch electrode and a second touch electrode according to an embodiment of the present invention.
Fig. 9 is a schematic partial view of a sub-pixel and a first touch unit according to an embodiment of the invention.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Unless defined otherwise, technical or scientific terms used in the embodiments of the present invention should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
An embodiment of the present invention provides a touch substrate, fig. 1 is a schematic structural diagram of a first touch electrode provided in the embodiment of the present invention, fig. 2 is a schematic structural diagram of a second touch electrode provided in the embodiment of the present invention, fig. 3 is a schematic structural diagram of the first touch electrode and the second touch electrode provided in the embodiment of the present invention, and fig. 4 is an enlarged view of a region B in fig. 3. As shown in fig. 1 to 4, the touch substrate includes a plurality of first touch electrodes and a plurality of second touch electrodes, the first touch electrodes include a plurality of first touch units 1 electrically connected, and the second touch electrodes include a plurality of second touch units 2 electrically connected. The first touch unit 1 includes at least one first main touch portion 11, the second touch unit 2 includes at least one second main touch portion 21, the first main touch portion 11 corresponds to the second main touch portion 21 one by one, and a touch capacitance is formed between the first main touch portion 11 and the corresponding second main touch portion 21. The first touch electrodes and the second touch electrodes are mesh electrodes, the first main touch portion 11 comprises a plurality of first main touch line groups A1 and a plurality of second main touch line groups A2, the first main touch line groups A1 comprise a plurality of first main touch lines L1 extending along a first direction, the second main touch line groups A2 comprise a plurality of second main touch lines L2 extending along a second direction, and the distance between two adjacent first main touch lines L1 in the same first main touch line group A1 is smaller than the distance between two adjacent first main touch line groups A1. And/or, the distance between two adjacent second main touch lines L2 in the same second main touch line group A2 is smaller than the distance between two adjacent second main touch line groups A2. For example, the distance between two adjacent first main touch line groups A1 is more than 10 times of the distance between two adjacent first main touch lines L1 in the same first main touch line group A1; the distance between two adjacent second main touch line groups A2 is more than 10 times of the distance between two adjacent second main touch lines L2 in the same second main touch line group A2.
Specifically, the first touch unit 1 and the second touch unit 2 may be disposed in the same layer. In the embodiment of the present invention, the same layer arrangement specifically means that the first touch unit 1 and the second touch unit 2 are formed by the same process. The first touch electrode may be one of a driving electrode (TX) and a sensing electrode (RX), and the second touch electrode may be the other of the driving electrode and the sensing electrode. In the embodiment of the invention, the explanation is given by taking the first touch electrode as a driving electrode and the second touch electrode as a sensing electrode. The plurality of first touch units 1 of the first touch electrode may be arranged along a first direction in fig. 1, the plurality of second touch units 2 of the second touch electrode may be arranged along a second direction in fig. 1, and only a lower half portion of the nth first touch unit 1 and an upper half portion of the n+1th first touch unit 1, and a right half portion of the mth second touch unit 2 and a left half portion of the m+1th second touch unit 2 are shown in fig. 1 for clarity of illustration. In the embodiment of the present invention, a preset interval (as indicated by arrow C in fig. 4) is provided between the first main touch portion 11 and the corresponding second main touch portion 21, so that when the first driving signal is applied to the first touch electrode and the second driving signal is applied to the second touch electrode, a touch capacitance can be formed between the first main touch portion 11 and the corresponding second main touch portion 21. When the touch object is not in contact with the touch substrate, a base capacitance value is formed between the first touch electrode and the second touch electrode because a touch capacitance is formed between the first main touch portion 11 and the corresponding second main touch portion 21, when the touch object is in contact with the touch substrate, the capacitance value between the first touch electrode and the second touch electrode at the touch position changes, the second touch electrode (i.e. the sensing electrode) can transmit the change of the sensed capacitance value to the touch detection module, and the touch detection module can process according to the change of the sensed capacitance value of the second touch electrode, so that the touch position is determined, and touch recognition is realized.
As shown in fig. 1 to 4, the first touch electrode and the second touch electrode are mesh electrodes, and after the touch panel is disposed on the display panel, the mesh first touch electrode and the mesh second touch electrode can expose the sub-pixels on the display panel, so as to avoid the interference of the first touch electrode and the second touch electrode with the display effect of the display panel.
In the embodiment of the present invention, each of the first main touch lines A1 is composed of a plurality of parallel first main touch lines L1, so that the area of the first main touch portion 11 in the horizontal direction is increased, and the sensing area between the first main touch portion 11 and the corresponding second main touch portion 21 is increased. Since the change amount of the capacitance value of the touch capacitance is positively correlated with the sensing area between the first main touch portion 11 and the corresponding second main touch portion 21 in the touch detection process, when the sensing area between the first main touch portion 11 and the corresponding second main touch portion 21 is increased, the change amount of the capacitance value of the touch capacitance is increased when touch occurs, so that the problem of poor signal to noise ratio due to small change amount of the capacitance is solved.
The structure of the touch substrate provided in the embodiment of the present invention will be described in detail with reference to fig. 1 to 8, in which the first touch electrode may be a structure as shown in fig. 1 to 4, or a structure as shown in fig. 6 to 8, and in the embodiment of the present invention, the first structure of the first touch electrode and the second touch electrode will be described by taking fig. 1 to 4 as an example.
In a comparative example, in order to increase the amount of change in the touch capacitance, the resistance of the touch electrode is reduced by increasing the width or thickness of the electrode line in the touch electrode, thereby increasing the amount of change in the touch capacitance. However, the inventors found that, in the present display device, the touch electrode is closer to the electrode layer in the OLED display panel (the electrode layer is, for example, the cathode of the light emitting unit), which results in parasitic capacitance formed between the touch electrode in the touch substrate and the electrode layer in the display panel, and the magnitude of the parasitic capacitance is positively correlated with the facing area between the touch electrode and the electrode layer, so that after the width of the electrode line is increased, the resistance of the touch electrode can be reduced, but the parasitic capacitance between the touch electrode and the electrode layer in the display panel is increased, and the parasitic capacitance also causes attenuation of the touch signal when the touch signal is transmitted in the touch electrode, so that the change amount of the touch capacitance in the local area is still small. Therefore, for the scheme of increasing the width of the electrode line, the effect of improving the variation of the touch capacitance is limited. Even though in this example, a part of the electrode lines are made thicker and another part of the electrode lines are made thinner, and thereby parasitic capacitance between the touch electrode and an electrode layer in the display panel is reduced while the resistance of the touch electrode is reduced, the processing process is more complicated due to the difference in width of the electrode lines, and at the same time, the risk of optical visibility of the touch electrode is greatly increased due to the difference in width of the electrode lines. For the solution of increasing the thickness of the electrode wire, the increase of the thickness of the electrode wire may cause the stress concentration phenomenon of the electrode wire to be obvious during bending, so that the electrode wire is easy to break during bending.
In view of this, in the embodiment of the present invention, the first touch unit 1 further includes: the first sub-touch portion 12 is electrically connected to the first main touch portion 11. The first auxiliary touch portion 12 includes at least one first auxiliary touch line L3 and at least one second auxiliary touch line L4, the first auxiliary touch line L3 is connected with the first main touch portion 11, and the second auxiliary touch line L4 is insulated from the first auxiliary touch line L3 and the first main touch portion 11.
Specifically, the first main touch line L1, the second main touch line L2, the first sub touch line L3, and the second sub touch line L4 may be formed by the same patterning process, thereby simplifying the manufacturing process. The first sub touch portion 12 may refer to a portion of the first touch unit 1 except for the first main touch portion 11. For the first sub-touch portion 12, a first sub-touch line L3 thereof may connect the first main touch portion 11 with a bridging electrode, which will be mentioned later, so as to transmit an electrical signal to the first main touch portion 11; the second auxiliary touch line L4 is insulated from the first auxiliary touch line L3 and the first main touch portion 11, so that the portion of the first touch unit 1 for transmitting the electrical signal is only the first auxiliary touch line L3 and the first main touch portion 11, and the area occupied by the portion of the first touch unit 1 for transmitting the electrical signal is smaller. In this way, when the touch panel is disposed on the display panel, since the area occupied by the portion for transmitting the electrical signal in the first touch unit 1 is small, the facing area between the first touch unit 1 and the electrode layer in the display panel is also small. Since the parasitic capacitance between the first touch electrode and the electrode layer in the display panel is positively correlated with the facing area between the first touch unit 1 and the electrode layer in the display panel, the parasitic capacitance formed between the first touch electrode and the electrode layer in the display panel is also small. Therefore, compared with the comparative example, the electrode layers in the touch substrate and the display panel of the embodiment of the invention have lower parasitic capacitance, so that adverse effects caused by the parasitic capacitance can be avoided. In addition, since the second auxiliary touch line L4 is provided to reduce the parasitic capacitance between the first touch electrode and the electrode layer in the display panel, the widths of the wirings (i.e., the first main touch line L1, the second main touch line L2, the first auxiliary touch line L3 and the second auxiliary touch line L4) in the first touch electrode may be the same, so that the risk of optical visibility may be reduced.
As shown in fig. 1, in the embodiment of the present invention, the first main touch line groups A1 and the second main touch line groups A2 may each include a plurality of wires parallel to each other, specifically, each first main touch line group A1 includes two parallel wires (i.e., two first main touch lines L1), and each second main touch line group A2 includes two parallel wires (i.e., two second main touch lines L2). The first auxiliary touch control portion 12 includes a wire group extending along the first direction and a wire group extending along the second direction, the orthographic projection of each wire group of the first auxiliary touch control portion 12 on the display panel is located in a spacing region between the sub-pixels, and the wire group of the first auxiliary touch control portion 12 includes two wires in parallel. In the first sub-touch portion 12, a part of the traces are the first sub-touch lines L3, and the other part of the traces are the second sub-touch lines L4. The widths of the plurality of wires in the first touch unit 1 are the same. In this way, the manufacturing process of the first touch unit 1 is relatively simple, and on the other hand, since each wire group of the first main touch portion 11 and the first auxiliary touch portion 12 is formed by two wires with the same width, the widths of each wire group of the first main touch portion 11 and the first auxiliary touch portion 12 are approximately the same, so that the optical visibility of the first touch unit 1 is further reduced.
Alternatively, the width of the wirings may be 5% to 47.5% of the interval between the adjacent two sub-pixels in the display panel, and the interval between the adjacent two wirings may be set to 5% to 90% of the interval between the adjacent two sub-pixels in the display panel. The "two adjacent wires" are, for example, two first main touch wires L1 in the same first main touch wire set A1, or two second main touch wires L2 in the same second main touch wire set A2, or two wires in the same wire set in the first auxiliary touch portion 12. In some examples, the width of the trace is between 1 μm and 10 μm, for example 3 μm; the spacing between two adjacent wires is between 1 μm and 5 μm, for example 2 μm.
As shown in fig. 2, in some embodiments, the second main touch portion 21 of the second touch unit 2 includes a plurality of third main touch line groups A3 and a plurality of fourth main touch line groups A4, the third main touch line groups A3 include a plurality of third main touch lines L5 extending along the first direction, the fourth main touch line groups A4 include a plurality of fourth main touch lines L6 extending along the second direction, and a distance between two adjacent third main touch lines L5 in the same third main touch line group A3 is smaller than a distance between two adjacent third main touch line groups A3. And/or, the distance between two adjacent fourth main touch lines L6 in the same fourth main touch line group A4 is smaller than the distance between two adjacent fourth main touch line groups A4.
In some embodiments, the second touch unit 2 further includes: the second auxiliary touch portion 22 is electrically connected with the second main touch portion 21, the second auxiliary touch portion 22 includes at least one third auxiliary touch line L7 and at least one fourth auxiliary touch line L8, the third auxiliary touch line L7 is connected with the second main touch portion 21, and the fourth auxiliary touch line L8 is insulated from the third auxiliary touch line L7 and the second main touch portion 21.
Specifically, in the embodiment of the present invention, the third main touch line L5, the fourth main touch line L6, the third auxiliary touch line L7 and the fourth auxiliary touch line L8 may be formed by the same patterning process, thereby simplifying the manufacturing process. The second sub-touch portion 22 may refer to a portion of the second touch unit 2 except the second main touch portion 21. The fourth auxiliary touch line L8 is insulated from the third auxiliary touch line L7 and the second main touch portion 21, so that the portion of the second touch unit 2 for transmitting the electrical signal is only the third auxiliary touch line L7 and the second main touch portion 21, and the area occupied by the portion of the second touch unit 2 for transmitting the electrical signal is smaller. In this way, when the touch panel is disposed on the display panel, since the area occupied by the portion for transmitting the electrical signal in the second touch unit 2 is smaller, the facing area between the second touch unit 2 and the electrode layer in the display panel is also smaller. Since the parasitic capacitance between the second touch electrode and the electrode layer in the display panel is positively correlated with the facing area between the second touch unit 2 and the electrode layer in the display panel, the parasitic capacitance formed between the second touch unit 2 and the electrode layer in the display panel is also small. Therefore, the parasitic capacitance between the touch substrate and the electrode layer in the display panel is further reduced, and, since the fourth sub-touch line L8 is provided to further reduce the parasitic capacitance between the touch substrate and the electrode layer in the display panel, the widths of the wirings in the second touch electrode can be set to be the same, thereby reducing the risk of optical visibility.
As shown in fig. 2, in the embodiment of the present invention, the third main touch line group A3 and the fourth main touch line group A4 may each include a plurality of wires parallel to each other, specifically, each third main touch line group A3 includes two parallel wires (i.e., two third main touch lines L5), and each fourth main touch line group A4 includes two parallel wires (i.e., two fourth main touch lines L6). The second auxiliary touch portion 22 includes a trace group extending along the first direction and a trace group extending along the second direction, a front projection of each trace group of the second auxiliary touch portion 22 on the display panel is located in a space region between the sub-pixels, and the trace group of the second auxiliary touch portion 22 includes a plurality of parallel traces. In the second sub-touch portion 22, a part of the traces are the third sub-touch line L7, and the other part of the traces are the fourth sub-touch line L8. The width of the trace in the second touch unit 2 may be the same as that of the trace in the first touch unit 1, thereby further simplifying the manufacturing process and reducing the optical visibility of the second touch unit 2.
In the second touch unit 2, the interval between two adjacent wirings may be set to be 5% to 90% of the interval between two adjacent sub-pixels in the display panel. The "two adjacent wires" in the second touch unit 2 are, for example, two third main touch wires L5 in the same third main touch wire set A3, or two fourth main touch wires L6 in the same fourth main touch wire set A4, or two wires in the same wire set in the second auxiliary touch portion 22. In some examples, the spacing between two adjacent wires in the second touch unit 2 is equal to the spacing between two adjacent wires in the first touch unit 1.
In the embodiment of the present invention, the first touch electrode further includes a first connection unit 3 extending along the second direction, and the plurality of first touch units 1 are connected to the first connection unit 3. The second touch electrode further includes a second connection unit 4 extending along the second direction, and the plurality of second touch units 2 are connected to the second connection unit 4. The first connection unit 3 and the second connection unit 4 each include a plurality of electrode lines. Between any adjacent first connection unit 3 and second connection unit 4, the first touch units 1 and the second touch units 2 are alternately arranged along the second direction. The extending direction of the first auxiliary touch line L3 is the same as that of the first main touch line L1. The second auxiliary touch line L4 and the first main touch line L1 have the same extending direction. The first sub-touch line L3 is located on the same line as at least one electrode line in the first connection unit 3 and at least one electrode line in the second connection unit 4.
In some embodiments, the extending direction of the third auxiliary touch line L7 is the same as that of the third main touch line L5, the extending direction of the fourth auxiliary touch line L8 is the same as that of the third main touch line L5, and the third auxiliary touch line L7 is on the same straight line as at least one electrode line in the first connection unit 3 and at least one electrode line in the second connection unit 4.
In the embodiment of the present invention, the first connection unit 3 and the plurality of first touch units 1 located at one side thereof form a comb structure as shown in fig. 1, wherein the first connection unit 3 corresponds to a comb handle of the comb structure, and the first touch units 1 correspond to comb teeth of the comb structure. The second connection unit 4 and the plurality of second touch units 2 located at one side thereof form a comb structure as shown in fig. 2, wherein the second connection unit 4 corresponds to a comb handle of the comb structure, and the second touch units 2 correspond to comb teeth of the comb structure.
In some embodiments, the plurality of first touch units 1 and the plurality of second touch units 2 are all distributed in an array, the touch substrate further includes a bridging electrode 5 and a connecting electrode 6, the bridging electrode 5 is connected with two adjacent first touch units 1 arranged along a first direction, the connecting electrode 6 is connected with two adjacent second touch units 2 arranged along a second direction, the first direction is a row direction in which the plurality of first touch units 1 are arranged, the second direction is a column direction, or the first direction is a column direction, and the second direction is a row direction. The bridging electrode 5 comprises a bridging electrode line L9 and a first floating electrode line L10, the bridging electrode line L9 is connected with the first main touch line L1 and/or the first auxiliary touch line L3 in the two adjacent first touch units 1, and the first touch units 1 and the bridging electrode line L9 are insulated and spaced from the first floating electrode line L10. The connecting electrode 6 comprises a connecting electrode line L11 and a second floating electrode line L12, the connecting electrode line L11 is connected with a third main touch line L5 and/or a third auxiliary touch line L7 in two adjacent second touch units 2, and the second touch units 2 and the connecting electrode line L11 are insulated from the second floating electrode line L12.
In the embodiment of the present invention, in the bridge electrode 5, since the first floating electrode line L10 is insulated from both the first touch units 1 and the bridge electrode line L9, the electrical signals of two adjacent first touch units 1 are transmitted through the bridge electrode line L9, that is, the portion of the bridge electrode 5 for transmitting the electrical signals is only the bridge electrode line L9; in the connection electrode 6, the second floating electrode line L12 is insulated from both the second touch units 2 and the connection electrode line L11, so that the electrical signals of two adjacent second touch units 2 are transmitted through the connection electrode line L11, that is, the portion of the connection electrode 6 for transmitting the electrical signals is only the connection electrode line L11. In this way, the facing areas of the portion of the bridge electrode 5 for transmitting the electric signal and the portion of the connecting electrode 6 for transmitting the electric signal are smaller, and the facing areas of the portion of the bridge electrode 5 for transmitting the electric signal and the portion of the connecting electrode 6 for transmitting the electric signal are positively correlated with the magnitude of the basic capacitance value formed between the first touch electrode and the second touch electrode, so that the touch substrate of the embodiment of the invention can reduce the magnitude of the basic capacitance value formed between the first touch electrode and the second touch electrode by reducing the facing areas of the portion of the bridge electrode 5 for transmitting the electric signal and the portion of the connecting electrode 6 for transmitting the electric signal, and the basic capacitance value is negatively correlated with the sensitivity of touch detection, and therefore, the touch substrate of the embodiment of the invention can improve the sensitivity of touch detection and further improve the touch recognition effect.
In the embodiment of the present invention, the bridging electrode 5 may include two bridging electrode lines L9 and two first floating electrode lines L10, where the two bridging electrode lines L9 are respectively connected to the first auxiliary touch lines L3 of the two first auxiliary touch portions 12, and the two bridging electrode lines L9 are located on the same straight line with the first touch line L3 connected thereto. The two first floating electrode lines L10 are located at one side of the two bridging electrode lines L9, respectively. The connection electrode 6 may include two connection electrode lines L11 and two second floating electrode lines L12, where the two connection electrode lines L11 are connected to the third auxiliary touch lines L7 of the two second auxiliary touch portions 22 respectively, and the two connection electrode lines L11 are located on the same line with the third touch line L7 connected thereto. The two second floating electrode lines L12 are located at one side of the two connection electrode lines L11, respectively.
Fig. 5 is a cross-sectional view of a bridge electrode wire and a connecting electrode wire according to an embodiment of the present invention, and the bridge electrode and the connecting electrode according to the embodiment of the present invention are described below with reference to fig. 1 to 5. Specifically, the touch substrate includes a first insulating layer 71 and a second insulating layer 72, where the first touch electrode, the second touch electrode and the connection electrode line L11 are all disposed on the first insulating layer 71, and the second insulating layer 72 covers the first touch electrode, the second touch electrode and the connection electrode line L11 and insulates the first touch electrode from the second touch electrode. Two adjacent second touch units 2 are connected through a connecting electrode wire 11. The bridging electrode line L9 is covered by a first insulating layer 71, a via hole H is provided on the first insulating layer 71, and the first sub-touch line L3 of the first touch electrode is connected to the bridging electrode line L9 through the via hole H.
In summary, the touch substrate provided by the embodiment of the invention can improve the variation of the touch capacitance to improve the signal to noise ratio, and can reduce the parasitic capacitance between the first and second touch electrodes and the electrode layer (such as the cathode of the light emitting unit) in the display panel. Further, by providing the first floating electrode line L10 in the bridging electrode 5 and the second floating electrode line L12 in the connecting electrode 6, the basic mutual capacitance between the first touch electrode and the second touch electrode can be reduced, thereby improving the touch sensitivity.
Fig. 6 is a schematic diagram of another structure of the first touch electrode provided by the embodiment of the present invention, fig. 7 is a schematic diagram of another structure of the second touch electrode provided by the embodiment of the present invention, fig. 8 is a schematic diagram of another structure of the first touch electrode and the second touch electrode provided by the embodiment of the present invention, and the second structure of the first touch electrode and the second touch electrode in the embodiment of the present invention is described below with reference to fig. 6 to 8.
In the structures shown in fig. 6 to 8, in the same first touch unit 1, the first auxiliary touch line L3 and at least one first main touch line L1 are located on the same line, or the first auxiliary touch line L3 and at least one second main touch line L2 are located on the same line. The second auxiliary touch line L4 and the at least one first main touch line L1 are located on the same line, or the second auxiliary touch line L4 and the at least one second main touch line L2 are located on the same line.
In some embodiments, in the same second touch unit 2, the third sub-touch line L7 and the at least one third main touch line L5 are located on the same line, or are located on the same line as the at least one fourth main touch line L6. The fourth sub-touch line L8 is located on the same line as the at least one third main touch line L5, or is located on the same line as the at least one fourth main touch line L6.
In the embodiment of the present invention, the shapes of the first touch unit 1 and the second touch unit 2 are approximately diamond, and since only half of the first touch unit 1 and the second touch unit 2 are shown in fig. 6 to 8, the shapes of the first touch unit 1 and the second touch unit 2 seen in fig. 6 to 8 are approximately triangle.
In the embodiment of the invention, the plurality of first touch units 1 of the first touch electrode are arranged along the first direction, and the plurality of second touch units 2 of the second touch electrode are arranged along the second direction. Two adjacent first touch units 1 are connected through a bridging electrode 5, two adjacent second touch units 2 are connected through a connecting electrode 6, wherein the bridging electrode 5 comprises a bridging electrode line L9 and a first floating electrode line L10, and the bridging electrode line L9 is connected with a first main touch line L1 of the corresponding first touch unit 1. The connection electrode 6 includes a connection electrode line L11 and a second floating electrode line L12, where the connection electrode line L11 is connected to the third main touch line L5 of the corresponding second touch unit 2. The first main touch line L1 extends along a first direction in fig. 5, the second main touch line L2 extends along a second direction, the third main touch line L5 extends along the first direction, the fourth main touch line L6 extends along the second direction, the first auxiliary touch line L3 and the second auxiliary touch line L4 both extend along the second direction, and the third auxiliary touch line L7 and the fourth auxiliary touch line L8 both extend along the first direction. A preset interval (shown by arrow D in fig. 8) is formed between the first main touch portion 11 and the second main touch portion 21, thereby forming a touch capacitance between the first main touch portion 11 and the second main touch portion 21.
In the embodiment of the present invention, except for the above, the specific arrangement of the rest portions may refer to the schemes shown in fig. 1 to 5, which are not described herein.
The invention also provides a display device, which can be: electronic paper, mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator, etc. The display device comprises a display panel and the touch substrate, wherein the display panel comprises a plurality of sub-pixels and a spacing area for spacing the sub-pixels from each other, and orthographic projections of the first touch electrode and the second touch electrode on the display panel are both positioned in the spacing area.
That is, there may be sub-pixels between different first main touch lines, and there may be sub-pixels between different second main touch portions, but there are no sub-pixels between two adjacent first main touch lines in the same first main touch line set and between two adjacent second main touch lines in the same second main touch line set.
Fig. 9 is a schematic partial view of a sub-pixel and a first touch unit provided in an embodiment of the present invention, where, as shown in fig. 9, a plurality of sub-pixels of a display panel are divided into a plurality of pixel units, each pixel unit includes a plurality of sub-pixels, and colors of the sub-pixels in the same pixel unit are different, for example, each pixel unit includes a red sub-pixel r, a green sub-pixel g, and a blue sub-pixel b. The adjacent two sub-pixels are separated by a routing group, and the routing group can be a first main touch line group A1 or a second main touch line group A2. Of course, the wiring set may also be a wiring set formed by two second auxiliary touch lines L4; or a wiring group consisting of a first auxiliary touch line L3 and a second auxiliary touch line L4; or a wiring group consisting of a bridging electrode wire and a first floating electrode wire; or a wiring group consisting of a connecting electrode wire and a second floating electrode wire; or a wiring group formed by two bridging electrode wires; or a wiring group consisting of two first floating electrode wires; or a wiring group formed by two connecting electrode wires; or a wiring group formed by two second floating electrode wires.
By adopting the display device provided by the embodiment of the invention, the capacitance variation can be improved, so that the problem of poor signal-to-noise ratio caused by small capacitance variation is solved.
In some embodiments, the distance between the edges of the first main touch portion and the corresponding second main touch portion is 1 to 10 times the width of the pixel unit.
In some embodiments, the display panel further includes an encapsulation layer disposed on a side of the sub-pixels near the touch substrate, the encapsulation layer being configured to space the sub-pixels from the outside, thereby preventing intrusion of water and oxygen. The side of the touch substrate far away from the display panel can also be provided with a cover plate (such as glass), and the cover plate can be bonded with the touch substrate through optical cement. Optical structures such as polaroids and the like can be arranged between the optical adhesive and the touch substrate, so that the display device is prevented from being influenced by external light.
In the embodiment of the present invention, as shown in fig. 5 and 8, the area where the first main touch portion 11 and the corresponding second main touch portion 21 are located may be a rectangular area (i.e. E in fig. 3 or E ' in fig. 8), the edges of the first main touch portion 11 and the corresponding second main touch portion 21 facing away from each other are two long sides of the rectangular area E/E ', and the distance between the edges of the first main touch portion 11 and the corresponding second main touch portion 21 facing away from each other is the width d of the rectangular area E/E '. In the embodiment of the present invention, the first main touch portion 11 and the second main touch portion 21 with the above-mentioned dimensions can reduce the dimensions of the first main touch portion 11 and the second main touch portion 21 as much as possible on the basis of ensuring that the sensing area is sufficiently large, so as to set the second sub-touch line L4 and the fourth sub-touch line L8 as much as possible, and further reduce the parasitic capacitance between the first touch electrode and the second touch electrode and the electrode layer in the display panel close to the touch substrate to the greatest extent.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (8)
1. The touch substrate is characterized by comprising a plurality of first touch electrodes and a plurality of second touch electrodes, wherein the first touch electrodes comprise a plurality of first touch units which are electrically connected, and the second touch electrodes comprise a plurality of second touch units which are electrically connected; the first touch unit comprises at least one first main touch part, the second touch unit comprises at least one second main touch part, the first main touch part corresponds to the second main touch part one by one, and a touch capacitor is formed between the first main touch part and the corresponding second main touch part;
the first touch electrodes and the second touch electrodes are mesh electrodes, the first main touch portion comprises a plurality of first main touch line groups and a plurality of second main touch line groups, the first main touch line groups comprise a plurality of first main touch lines extending along a first direction, the second main touch line groups comprise a plurality of second main touch lines extending along a second direction, and the distance between two adjacent first main touch lines in the same first main touch line group is smaller than the distance between two adjacent first main touch line groups; and/or the distance between two adjacent second main touch lines in the same second main touch line group is smaller than the distance between two adjacent second main touch line groups;
The first touch unit further includes: the first auxiliary touch control part is electrically connected with the first main touch control part;
the first auxiliary touch control part comprises at least one first auxiliary touch control line and at least one second auxiliary touch control line, the first auxiliary touch control line is connected with the first main touch control part, and the second auxiliary touch control line is insulated from the first auxiliary touch control line and the first main touch control part;
the second main touch portion comprises a plurality of third main touch line groups and a plurality of fourth main touch line groups, the third main touch line groups comprise a plurality of third main touch lines extending along a first direction, the fourth main touch line groups comprise a plurality of fourth main touch lines extending along a second direction, and the distance between two adjacent third main touch lines in the same third main touch line group is smaller than the distance between two adjacent third main touch line groups; and/or the distance between two adjacent fourth main touch lines in the same fourth main touch line group is smaller than the distance between two adjacent fourth main touch line groups;
the second touch unit further includes: the second auxiliary touch control part is electrically connected with the second main touch control part and comprises at least one third auxiliary touch control line and at least one fourth auxiliary touch control line, the third auxiliary touch control line is connected with the second main touch control part, and the fourth auxiliary touch control line is insulated from the third auxiliary touch control line and the second main touch control part.
2. The touch substrate of claim 1, wherein, in the same first touch unit,
the first auxiliary touch line and at least one first main touch line are positioned on the same straight line, or the first auxiliary touch line and at least one second main touch line are positioned on the same straight line; the second auxiliary touch line and at least one first main touch line are positioned on the same straight line, or the second auxiliary touch line and at least one second main touch line are positioned on the same straight line.
3. The touch substrate according to claim 1, wherein the first touch electrode further comprises a first connection unit extending along the second direction, and a plurality of the first touch units are connected with the first connection unit; the second touch electrode further comprises a second connecting unit extending along the second direction, and a plurality of second touch units are connected with the second connecting unit; the first connection unit and the second connection unit each include a plurality of electrode lines;
between any adjacent first connection units and second connection units, the first touch units and the second touch units are alternately arranged along the second direction, and the extending direction of the first auxiliary touch line is the same as that of the first main touch line; the extending direction of the second auxiliary touch line is the same as that of the first main touch line; the first auxiliary touch control line is positioned on the same straight line with at least one electrode line in the first connecting unit and at least one electrode line in the second connecting unit.
4. The touch substrate of claim 1, wherein, in the same second touch unit,
the third auxiliary touch line and at least one third main touch line are positioned on the same straight line, or positioned on the same straight line with at least one fourth main touch line; the fourth auxiliary touch line and at least one third main touch line are positioned on the same straight line, or positioned on the same straight line with at least one fourth main touch line.
5. The touch substrate according to claim 1, wherein the first touch electrode further comprises a first connection unit extending along the second direction, and a plurality of the first touch units are connected with the first connection unit; the second touch electrode further comprises a second connecting unit extending along the second direction, and a plurality of second touch units are connected with the second connecting unit; the first connection unit and the second connection unit each include a plurality of electrode lines;
between any adjacent first connection units and second connection units, the first touch units and the second touch units are alternately arranged along the second direction, and the extension direction of the third auxiliary touch line is the same as that of the third main touch line; the extending direction of the fourth auxiliary touch line is the same as that of the third main touch line; the third auxiliary touch control line is positioned on the same straight line with at least one electrode line in the first connecting unit and at least one electrode line in the second connecting unit.
6. The touch substrate according to claim 1, wherein the plurality of first touch units and the plurality of second touch units are each arranged in an array, the touch substrate further comprising a bridge electrode connected to two adjacent first touch units arranged in a first direction and a connection electrode connected to two adjacent second touch units arranged in a second direction, the first direction being one of a row direction and a column direction, the second direction being the other of the row direction and the column direction;
the bridging electrode comprises a bridging electrode line and a first floating electrode line, the bridging electrode line is connected with a first main touch line and/or the first auxiliary touch line in two adjacent first touch units, and the first touch units and the bridging electrode line are insulated from the first floating electrode line at intervals;
the connecting electrode comprises a connecting electrode wire and a second floating electrode wire, the connecting electrode wire is connected with a third main touch wire and/or a third auxiliary touch wire in two adjacent second touch units, and the second touch units and the connecting electrode wire are insulated from the second floating electrode wire at intervals.
7. A display device comprising a display panel and the touch substrate according to any one of claims 1 to 6, the display panel comprising a plurality of sub-pixels and a spacer for spacing the plurality of sub-pixels from each other,
orthographic projections of the first touch electrode and the second touch electrode on the display panel are located in the interval region.
8. The display device according to claim 7, wherein the display panel includes a plurality of sub-pixels, the plurality of sub-pixels being divided into a plurality of pixel units, each pixel unit including a plurality of sub-pixels, the colors of the sub-pixels in the same pixel unit being different;
the distance between the edges of the first main touch control part and the corresponding second main touch control part, which are away from each other, is 1-10 times of the width of the pixel unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520059.5A CN112527159B (en) | 2020-12-21 | 2020-12-21 | Touch substrate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011520059.5A CN112527159B (en) | 2020-12-21 | 2020-12-21 | Touch substrate and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112527159A CN112527159A (en) | 2021-03-19 |
| CN112527159B true CN112527159B (en) | 2024-03-15 |
Family
ID=75002227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011520059.5A Active CN112527159B (en) | 2020-12-21 | 2020-12-21 | Touch substrate and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112527159B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115904133A (en) * | 2021-08-16 | 2023-04-04 | 京东方科技集团股份有限公司 | Touch display substrate, preparation method and touch display device |
| CN113867578B (en) * | 2021-09-27 | 2023-06-30 | 武汉华星光电半导体显示技术有限公司 | Touch screen and touch device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150042437A (en) * | 2013-10-11 | 2015-04-21 | 주식회사 지2터치 | Touch Screen Panel Having Geometric Pattern Structure |
| CN206178745U (en) * | 2016-11-03 | 2017-05-17 | 上海天马微电子有限公司 | Display device |
| CN107357467A (en) * | 2017-08-01 | 2017-11-17 | 上海天马微电子有限公司 | A kind of display panel and display device |
| CN108874222A (en) * | 2018-06-26 | 2018-11-23 | 京东方科技集团股份有限公司 | Touch base plate, touch screen and touch device |
| CN109117017A (en) * | 2017-06-26 | 2019-01-01 | Vts-触动感应器有限公司 | Touch panel and display device |
| CN109725759A (en) * | 2017-10-30 | 2019-05-07 | Vts-触动感应器有限公司 | Touch panel and the display device for having the touch panel |
| CN111090359A (en) * | 2019-12-03 | 2020-05-01 | 武汉华星光电半导体显示技术有限公司 | Touch substrate, display panel and display device thereof |
| CN210573113U (en) * | 2019-11-06 | 2020-05-19 | 京东方科技集团股份有限公司 | Display device |
| CN111736727A (en) * | 2020-06-29 | 2020-10-02 | 京东方科技集团股份有限公司 | Mutual capacitance type touch substrate and display panel |
-
2020
- 2020-12-21 CN CN202011520059.5A patent/CN112527159B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150042437A (en) * | 2013-10-11 | 2015-04-21 | 주식회사 지2터치 | Touch Screen Panel Having Geometric Pattern Structure |
| CN206178745U (en) * | 2016-11-03 | 2017-05-17 | 上海天马微电子有限公司 | Display device |
| CN109117017A (en) * | 2017-06-26 | 2019-01-01 | Vts-触动感应器有限公司 | Touch panel and display device |
| CN107357467A (en) * | 2017-08-01 | 2017-11-17 | 上海天马微电子有限公司 | A kind of display panel and display device |
| CN109725759A (en) * | 2017-10-30 | 2019-05-07 | Vts-触动感应器有限公司 | Touch panel and the display device for having the touch panel |
| CN108874222A (en) * | 2018-06-26 | 2018-11-23 | 京东方科技集团股份有限公司 | Touch base plate, touch screen and touch device |
| CN210573113U (en) * | 2019-11-06 | 2020-05-19 | 京东方科技集团股份有限公司 | Display device |
| CN111090359A (en) * | 2019-12-03 | 2020-05-01 | 武汉华星光电半导体显示技术有限公司 | Touch substrate, display panel and display device thereof |
| CN111736727A (en) * | 2020-06-29 | 2020-10-02 | 京东方科技集团股份有限公司 | Mutual capacitance type touch substrate and display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112527159A (en) | 2021-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10452201B1 (en) | Touch sensor for display with shield | |
| CN109388288B (en) | Display panel and display device | |
| JP5103254B2 (en) | Capacitive touch panel and screen input type display device including the same | |
| US8593413B2 (en) | Sensory structure of capacitive touch panel and capacitive touch panel having the same | |
| KR101169250B1 (en) | A improved touch location sensor panel having one-layered structure | |
| US20100253646A1 (en) | Position input device | |
| KR101202552B1 (en) | A improved touch location sensor panel having one-layered structure | |
| US20110175846A1 (en) | Touch display panel | |
| WO2020029372A1 (en) | Touch screen and oled display panel | |
| CN112527159B (en) | Touch substrate and display device | |
| WO2017020344A1 (en) | Mutual-capacitance touch unit, touch liquid crystal panel, and driving method | |
| CN111651092A (en) | Touch control assembly and touch control display device | |
| KR20150114008A (en) | Touch sensing panel | |
| US20170060308A1 (en) | Touch sensor of electromagnetic resonance type and display device including touch sensor | |
| CN107678590B (en) | Touch display panel and driving method thereof | |
| WO2016106849A1 (en) | Touch liquid crystal panel and manufacturing method therefor | |
| TW201933075A (en) | Mutual capacitive touch panel | |
| US11360617B2 (en) | Touch substrate and touch screen | |
| TWI699684B (en) | Array substrate, embedded touch screen and display device | |
| US11561634B2 (en) | Display module, fabrication method thereof and display device | |
| WO2019218800A1 (en) | Touch display substrate, touch display method and touch display device | |
| KR102281616B1 (en) | Touch screen panel and method of manufacturing the same | |
| JP2015022563A (en) | Touch panel, and touch input function-equipped display device using the same | |
| CN113655903B (en) | Display panel and display device | |
| CN115113764A (en) | Display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |