CN106909260B - Touch screen - Google Patents
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- CN106909260B CN106909260B CN201710113623.3A CN201710113623A CN106909260B CN 106909260 B CN106909260 B CN 106909260B CN 201710113623 A CN201710113623 A CN 201710113623A CN 106909260 B CN106909260 B CN 106909260B
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- 239000000758 substrate Substances 0.000 claims abstract description 73
- 230000004907 flux Effects 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Classifications
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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
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic 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
Abstract
The invention provides a touch screen. The touch screen includes: the touch screen comprises a first substrate base plate and a second substrate base plate which are arranged oppositely, wherein a first electromagnetic touch layer and a second electromagnetic touch layer are arranged between the first substrate base plate and the second substrate base plate and are arranged in a crossed mode; the second electromagnetic touch layer is used for changing the charge quantity when a touch occurs; the first electromagnetic touch layer is used for changing magnetic flux when the charge quantity of the second electromagnetic touch layer changes. In the invention, the first electromagnetic touch layer and the second electromagnetic touch layer which are arranged in a crossed mode are arranged between the first substrate base plate and the second substrate base plate, the electric charge quantity of the second electromagnetic touch layer is changed when touch occurs, and the magnetic flux of the first electromagnetic touch layer is changed when the second electromagnetic touch layer is changed.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch screen.
Background
At present, a resistance type touch screen, a capacitance type touch screen, an infrared type touch screen or an electromagnetic type touch screen can be adopted as the mainstream touch screen. The capacitive touch screen is widely applied by virtue of the advantages of high sensitivity, long service life, high transmittance, multi-point touch control and the like; the electromagnetic touch screen can realize the handwriting of the original handwriting by virtue of the characteristic that the electromagnetic touch screen can be widely used in a plurality of high-order Computer Aided Drawing (CAD) systems (such as AutoCAD). The capacitive touch screen and the electromagnetic touch screen are combined, so that the original handwriting can be input by handwriting, the graphical interface can be operated, and the like.
In the prior art, an electromagnetic touch screen adopts an externally-hung structure, i.e., a touch structure is additionally arranged on the outer side of a display panel. This not only increases the thickness of the entire touch screen but also increases the manufacturing cost.
Disclosure of Invention
The invention provides a touch screen, which is used for reducing the thickness of the whole touch screen and reducing the manufacturing cost.
In order to achieve the above object, the present invention provides a touch screen, including: the touch screen comprises a first substrate base plate and a second substrate base plate which are arranged oppositely, wherein a first electromagnetic touch layer and a second electromagnetic touch layer are arranged between the first substrate base plate and the second substrate base plate, and the first electromagnetic touch layer and the second electromagnetic touch layer are arranged in a crossed mode;
the second electromagnetic touch layer is used for changing the charge quantity when a touch occurs;
the first electromagnetic touch layer is used for changing magnetic flux when the charge quantity of the second electromagnetic touch layer is changed.
Optionally, the first electromagnetic touch layer includes a first signal trace and a plurality of sequentially arranged pattern structures, each two adjacent pattern structures are connected by a switch tube, and the switch tube is further connected to the first signal trace;
the first signal routing is used for outputting a control signal to the switch tube in a touch control stage so as to enable the switch tube to be opened.
Optionally, a control electrode of the switch tube is connected to the first signal trace, a first electrode of the switch tube is connected to one of the two adjacent graphic structures, and a second electrode of the switch tube is connected to the other of the two adjacent graphic structures.
Optionally, a data line is disposed on one side of the first substrate close to the second substrate, and the graphic structure is a data line; or
And a grid line is arranged on one side of the first substrate base plate close to the second substrate base plate, and the pattern structure is arranged along the direction of the grid line.
Optionally, the first electromagnetic touch layer includes a plurality of first graphic structures and a second signal trace connected to each of the first graphic structures;
one side of each first graph structure is provided with an opening, and one side, facing the opening, of each first graph structure is connected with the second signal routing.
Optionally, the openings of two adjacent first pattern structures face opposite directions.
Optionally, the method further comprises: and the second graphic structures are arranged corresponding to the first graphic structures and are positioned in the openings of the corresponding first graphic structures.
Optionally, the second electromagnetic touch layer comprises a first routing layer, a second routing layer, and a plurality of piezoelectric structures located between the first routing layer and the second routing layer;
the first routing layer comprises a plurality of first routing wires, the second routing layer comprises a plurality of second routing wires, and each first routing wire is connected with the corresponding second routing wire through the corresponding piezoelectric structure.
Optionally, a gate line is disposed on one side of the first substrate close to the second substrate, and the first trace and the second trace are disposed along a direction of the gate line; or
One side of the first substrate base plate, which is close to the second substrate base plate, is provided with a data line, and the first routing line and the second routing line are arranged along the direction of the data line.
Optionally, a gate line is disposed on a side of the first substrate close to the second substrate, and the first pattern structure is disposed along the direction of the gate line; or
And a data line is arranged on one side of the first substrate base plate close to the second substrate base plate, and the first graph structure is arranged along the direction of the data line.
The invention has the beneficial effects that:
according to the technical scheme of the touch screen, the first electromagnetic touch layer and the second electromagnetic touch layer are arranged between the first substrate base plate and the second substrate base plate in a crossed mode, the electric charge quantity of the second electromagnetic touch layer changes when touch occurs, and the magnetic flux of the first electromagnetic touch layer changes when the second electromagnetic touch layer changes.
Drawings
Fig. 1 is a schematic structural diagram of a touch screen according to an embodiment of the present invention;
FIG. 2 is a schematic plan view of the first electromagnetic touch layer of FIG. 1;
FIG. 3 is a schematic plan view of the second electromagnetic touch layer of FIG. 1;
fig. 4 is a schematic structural diagram of a touch screen according to a second embodiment of the present invention;
FIG. 5 is a schematic plan view of the first electromagnetic touch layer of FIG. 4;
FIG. 6 is a schematic plan view of the second electromagnetic touch layer of FIG. 4;
fig. 7 is a schematic plan view of the touch screen in fig. 4.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the touch screen provided by the present invention in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a touch screen according to a first embodiment of the present invention, fig. 2 is a schematic plan view of a first electromagnetic touch layer in fig. 1, fig. 3 is a schematic plan view of a second electromagnetic touch layer in fig. 1, and as shown in fig. 1 to fig. 3, the touch screen includes a first substrate 1 and a second substrate 2 that are disposed opposite to each other, a first electromagnetic touch layer 3 and a second electromagnetic touch layer 4 are disposed between the first substrate 1 and the second substrate 2, and the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4 are disposed in an intersecting manner. The second electromagnetic touch layer 4 is intended to change the amount of charge when a touch occurs. The first electromagnetic touch layer 3 is used for changing magnetic flux when the charge amount of the second electromagnetic touch layer 4 changes.
In the present embodiment, the first electromagnetic touch layer 3 is located on the side of the first base substrate 1 close to the second base substrate 2.
Further, in order to electrically insulate the first electromagnetic touch layer 3 from the second electromagnetic touch layer 4, an insulating layer 5 is provided between the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4.
As shown in fig. 2, the first electromagnetic touch layer 3 includes a first signal trace 31 and a plurality of sequentially arranged pattern structures 32, each two adjacent pattern structures 32 are connected by a switch 33, and the switch 33 is further connected to the first signal trace 31. The first signal trace 31 is used for outputting a control signal to the switch tube 33 in the touch stage to turn on the switch tube 33. In this embodiment, the control pole of the switch 33 is connected to the first signal trace 31, the first pole of the switch 33 is connected to one of the two adjacent graphic structures 32, and the second pole of the switch 33 is connected to the other graphic structure 32 of the two adjacent graphic structures 32. Preferably, the material of the first signal trace 31 is metal. As shown in fig. 2, in the touch stage, the first signal trace 31 outputs a control signal to the switch 33, and the switch 33 is turned on under the control of the control signal. Two adjacent pattern structures 32 are connected by a conductive switching tube 33, and the two adjacent pattern structures 32 and the conductive switching tube 33 form an electromagnetic coil. When a touch occurs, the charge quantity of the touch position on the second electromagnetic touch layer 4 changes, and the magnetic flux of the electromagnetic coil at the corresponding position on the first electromagnetic touch layer 3 changes.
Preferably, the graphic structure 32 is a data line. In the touch stage, when the switch tube 31 is turned on, the pattern structure 32 serves as a first electromagnetic touch layer to implement a touch function. In the display stage, the first signal trace 31 outputs a control signal to the switch tube 33, at this time, the control signal is a close signal, the switch tube 33 is closed under the control of the control signal, and the two adjacent graphic structures 32 are not connected, that is, the adjacent data lines are not connected, so that the graphic structures 32 serve as the data lines to realize the display function in the display stage. The data lines are used as the graphic structure 32, and the structure in the first electromagnetic touch layer does not need to be separately arranged, so that the function of simplifying the structure of the touch screen is achieved.
As shown in fig. 1 and 3, the second electromagnetic touch layer 4 comprises a first routing layer, a second routing layer and a plurality of piezoelectric structures 43 located between the first routing layer and the second routing layer. The first routing layer includes a plurality of first traces 41, and the second routing layer includes a plurality of second traces 42, and each first trace 41 is connected to a corresponding second trace 42 through a corresponding piezoelectric structure 43. As shown in fig. 1 and 3, the first trace 41 is connected to the upper end of the piezoelectric structure 43, and the second trace 42 is connected to the lower end of the piezoelectric structure 43. Preferably, the material of the first trace 41 includes a metal or a conductive oxide, and the material of the second trace 42 includes a metal or a conductive oxide, wherein the conductive oxide is ITO. It should be noted that: in fig. 1 and fig. 3, only one first trace 41, one second trace 42, and one piezoelectric structure 43 are taken as an example, and in practical application, the second electromagnetic touch layer 4 includes a plurality of first traces 41, a plurality of second traces 42, and a plurality of piezoelectric structures 43. When a touch occurs, the piezoelectric effect under the action of external force causes the charge amount of the piezoelectric structure 43 corresponding to the touch position on the second electromagnetic touch layer 4 to increase, and the increased charge amount under different external force actions is different.
In this embodiment, the first trace 41 is located on one side of the second substrate 2 close to the first substrate 1, and the second trace 42 is located on one side of the first electromagnetic touch layer 3 close to the second substrate 2. The insulating layer 5 is located between the first electromagnetic touch layer 3 and the second routing line 42.
Preferably, the piezoelectric structure 43 is a spacer. The material of the spacer as the piezoelectric structure 43 is a piezoelectric material. The spacer is used as the piezoelectric structure 43, and the piezoelectric structure in the second electromagnetic touch layer does not need to be separately arranged, so that the effect of simplifying the structure of the touch screen is achieved.
A gate line (not shown) and a data line (not shown) are disposed on one side of the first substrate 1 adjacent to the second substrate 2. In the present embodiment, it is preferable that the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4 are arranged to intersect vertically. As shown in fig. 2, the pattern structure 32 is a data line, in other words, the pattern structure 32 is disposed along the direction of the data line. As shown in fig. 1 and 3, the first routing line 41 and the second routing line 42 are disposed along the direction of the gate line. In particular, the graphic structure 32 is arranged perpendicularly crossing the first routing 41 and the second routing 42.
Alternatively, in practical applications, the pattern structure 32 is disposed along the gate line, and the first trace 41 and the second trace 42 are disposed along the data line. In particular, the graphic structure 32 is arranged perpendicularly crossing the first routing 41 and the second routing 42. This is not specifically shown.
The operation of the touch screen in the present embodiment is described in detail below with reference to fig. 1 to 3. In the touch stage, the first signal trace 31 outputs a control signal to the switch tube 33, the control signal is a turn-on signal to turn on the switch tube 33, the adjacent pattern structures 32 are connected through the switch tube 33, and the adjacent pattern structures 32 and the switch tube 33 form an electromagnetic coil. When a touch occurs, the second electromagnetic touch layer 4 is acted by an external force, the piezoelectric effect increases the charge amount of the piezoelectric structure 43 corresponding to the touch position on the second electromagnetic touch layer 4 under the external force, and at this time, the increase of the charge amount on which piezoelectric structure 43 is located can be known by detecting the currents on the first wire 41 and the second wire 42 connected to the piezoelectric structure 43, so that the position coordinate of the grid line direction where the piezoelectric structure 43 is located is determined. When the electric charge amount of the touch position on the second electromagnetic touch layer 4 is increased, the magnetic flux of the corresponding position on the first electromagnetic touch layer 3 is changed, and at this time, the magnetic flux on which electromagnetic coil is changed can be known by detecting the current on the first signal routing line 31, so that the position coordinate of the data line direction where the electromagnetic coil is located is determined. In summary, the coordinates of the touch position can be obtained by the position coordinates of the gate line direction and the position coordinates of the data line direction. It can be derived from the above, because the external force action is different, and the amount of change of the charge amount is also different, resulting in that the amount of change of the magnetic flux is also different, so that the pressure touch function is realized through the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4 in this embodiment.
In the technical scheme of the touch screen provided by this embodiment, the first electromagnetic touch layer and the second electromagnetic touch layer which are arranged in a crossed manner are arranged between the first substrate base plate and the second substrate base plate, the electric charge amount of the second electromagnetic touch layer changes when a touch occurs, and the magnetic flux of the first electromagnetic touch layer changes when the second electromagnetic touch layer changes.
Fig. 4 is a schematic structural diagram of a touch screen according to a second embodiment of the present invention, fig. 5 is a schematic plan view of a first electromagnetic touch layer in fig. 4, fig. 6 is a schematic plan view of a second electromagnetic touch layer in fig. 4, and fig. 7 is a schematic plan view of a touch screen in fig. 4, as shown in fig. 4 to fig. 7, the touch screen includes a first substrate 1 and a second substrate 2 that are disposed opposite to each other, a first electromagnetic touch layer 3 and a second electromagnetic touch layer 4 are disposed between the first substrate 1 and the second substrate 2, and the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4 are disposed in an intersecting manner. The second electromagnetic touch layer 4 is intended to change the amount of charge when a touch occurs. The first electromagnetic touch layer 3 is used for changing magnetic flux when the charge amount of the second electromagnetic touch layer 4 changes.
In the present embodiment, the first electromagnetic touch layer 3 is located on the side of the first base substrate 1 close to the second base substrate 2.
Further, in order to electrically insulate the first electromagnetic touch layer 3 from the second electromagnetic touch layer 4, an insulating layer 5 is provided between the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4.
As shown in fig. 5, the first electromagnetic touch layer 3 includes a plurality of first graphic structures 34 and a second signal trace 36 connected to each of the first graphic structures 34. One side of each first pattern structure 34 is provided with an opening 37, and the side of the first pattern structure 34 facing the opening 37 is connected to the second signal trace 36. The first pattern structures 34 are sequentially arranged above the first substrate base plate 1, and preferably, the openings 37 of two adjacent first pattern structures 34 are opposite in orientation. In this embodiment, the openings 37 of two adjacent first pattern structures 34 are oppositely oriented in the data line direction. Preferably, the first pattern structure 34 is U-shaped. The side of the first pattern structure 34 facing the opening 37 includes two edge portions, which are respectively connected to the second signal traces 36. Preferably, the material of the second signal trace 36 is metal. As shown in fig. 5, each first pattern 34 forms an electromagnetic coil. As shown in fig. 5, the second signal trace 36 is located below the first pattern structure 34, an insulating layer (not shown) is disposed between the second signal trace 36 and the first pattern structure 34, a via hole (not shown) is disposed on the insulating layer above the second signal trace 36, and a portion of the first pattern structure 34 is located in the via hole to connect with the second signal trace 36. In practical applications, optionally, the second signal trace 36 and the first pattern structure 34 may be disposed in the same layer, and preferably, both the second signal trace 36 and the first pattern structure 34 are common electrodes. When a touch occurs, the charge quantity of the touch position on the second electromagnetic touch layer 4 changes, and the magnetic flux of the electromagnetic coil at the corresponding position on the first electromagnetic touch layer 3 changes.
Further, the touch screen further includes: a second pattern structure 35 is disposed corresponding to each first pattern structure 34, and the second pattern structure 35 is located in the opening 37 of the corresponding first pattern structure 34. Preferably, the first graphic structure 34 and the second graphic structure 35 are disposed in the same layer. Preferably, the second pattern structure 35 has a bar shape.
Preferably, the first pattern structure 34 and the second pattern structure 35 are both common electrodes. In the touch stage, the first graphic structure 34 serves as a first electromagnetic touch layer to implement a touch function. In the display phase, a common electrode signal is applied to the first pattern structure 34 and the second pattern structure 35, and the first pattern structure 34 and the second pattern structure 35 serve as a common electrode to realize the display function. The common electrode is used as the first pattern structure 34 and the second pattern structure 35, and the structure in the first electromagnetic touch layer is not required to be separately arranged, so that the effect of simplifying the structure of the touch screen is achieved.
As shown in fig. 4 and 6, the second electromagnetic touch layer 4 comprises a first routing layer, a second routing layer and a plurality of piezoelectric structures 43 located between the first routing layer and the second routing layer. The first routing layer includes a plurality of first traces 41, and the second routing layer includes a plurality of second traces 42, and each first trace 41 is connected to a corresponding second trace 42 through a corresponding piezoelectric structure 43. As shown in fig. 4 and 6, the first trace 41 is connected to the upper end of the piezoelectric structure 43, and the second trace 42 is connected to the lower end of the piezoelectric structure 43. Preferably, the material of the first trace 41 includes a metal or a conductive oxide, and the material of the second trace 42 includes a metal or a conductive oxide, wherein the conductive oxide is ITO. It should be noted that: in fig. 4 and fig. 6, only one first trace 41, one second trace 42, and one piezoelectric structure 43 are taken as an example, and in practical application, the second electromagnetic touch layer 4 includes a plurality of first traces 41, a plurality of second traces 42, and a plurality of piezoelectric structures 43. When a touch occurs, the piezoelectric effect under the action of external force causes the charge amount of the piezoelectric structure 43 corresponding to the touch position on the second electromagnetic touch layer 4 to increase, and the increased charge amount under different external force actions is different.
In this embodiment, the first trace 41 is located on one side of the second substrate 2 close to the first substrate 1, and the second trace 42 is located on one side of the first electromagnetic touch layer 3 close to the second substrate 2. The insulating layer 5 is located between the first electromagnetic touch layer 3 and the second routing line 42.
Preferably, the piezoelectric structure 43 is a spacer. The material of the spacer as the piezoelectric structure 43 is a piezoelectric material. The spacer is used as the piezoelectric structure 43, and the piezoelectric structure in the second electromagnetic touch layer does not need to be separately arranged, so that the effect of simplifying the structure of the touch screen is achieved.
A gate line (not shown) and a data line (not shown) are disposed on one side of the first substrate 1 adjacent to the second substrate 2. In the present embodiment, it is preferable that the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4 are arranged to intersect vertically. In this embodiment, a gate line (not shown) is disposed on a side of the first substrate 1 close to the second substrate 2, and the first pattern structure 34 is disposed along the gate line; a data line (not shown) is disposed on a side of the first substrate 1 close to the second substrate 2, and the first trace 41 and the second trace 42 are disposed along the direction of the data line. In particular, as shown in fig. 7, the first graphic structure 34 is arranged perpendicularly crossing the first routing 41 and the second routing 42. Further, the second pattern structure 35 is also disposed along the gate line direction.
Alternatively, in practical applications, the first pattern structure 34 is disposed along the direction of the data line, and the first trace 41 and the second trace 42 are disposed along the direction of the gate line. In particular, the first graphic structure 34 is arranged perpendicularly crossing the first routing 41 and the second routing 42. This is not specifically shown. Further, the second graphic structure 35 is also disposed in the direction of the data line.
The operation of the touch screen in the present embodiment is described in detail with reference to fig. 4 to 7. When a touch occurs, the second electromagnetic touch layer 4 is acted by an external force, the piezoelectric effect increases the charge amount of the piezoelectric structure 43 corresponding to the touch position on the second electromagnetic touch layer 4 under the external force, and at this time, the increase of the charge amount on which piezoelectric structure 43 is located can be known by detecting the currents on the first wire 41 and the second wire 42 connected to the piezoelectric structure 43, so that the position coordinate of the grid line direction where the piezoelectric structure 43 is located is determined. When the electric charge amount of the touch position on the second electromagnetic touch layer 4 is increased, the magnetic flux of the corresponding position on the first electromagnetic touch layer 3 is changed, and at this time, the magnetic flux on which electromagnetic coil is changed can be known by detecting the current on the second signal routing line 36, so that the position coordinate of the data line direction where the electromagnetic coil is located is determined. In summary, the coordinates of the touch position can be obtained by the position coordinates of the gate line direction and the position coordinates of the data line direction. Further, in order to better detect the change of the magnetic flux on the electromagnetic coil, a stimulation signal may be loaded on the second signal trace 36 in the touch stage, so that after the current on the second signal trace 36 is detected, the detected current on the second signal trace 36 is compared with the stimulation signal so as to determine the change of the signal, thereby knowing which electromagnetic coil has the change of the magnetic flux.
It can be derived from the above, because the external force action is different, and the amount of change of the charge amount is also different, resulting in that the amount of change of the magnetic flux is also different, so that the pressure touch function is realized through the first electromagnetic touch layer 3 and the second electromagnetic touch layer 4 in this embodiment.
In the technical scheme of the touch screen provided by this embodiment, the first electromagnetic touch layer and the second electromagnetic touch layer which are arranged in a crossed manner are arranged between the first substrate base plate and the second substrate base plate, the electric charge amount of the second electromagnetic touch layer changes when a touch occurs, and the magnetic flux of the first electromagnetic touch layer changes when the second electromagnetic touch layer changes.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A touch screen, comprising: the touch screen comprises a first substrate base plate and a second substrate base plate which are arranged oppositely, wherein a first electromagnetic touch layer and a second electromagnetic touch layer are arranged between the first substrate base plate and the second substrate base plate, and the first electromagnetic touch layer and the second electromagnetic touch layer are arranged in a crossed mode; a gate line and a data line are disposed on one side of the first substrate close to the second substrate,
the second electromagnetic touch layer is used for judging the position coordinate along the grid line direction when the electric charge quantity changes when touch occurs;
the first electromagnetic touch layer is used for judging position coordinates along the direction of the data line when magnetic flux changes when the charge quantity of the second electromagnetic touch layer changes.
2. The touch screen of claim 1, wherein the first electromagnetic touch layer comprises a first signal trace and a plurality of sequentially arranged pattern structures, every two adjacent pattern structures are connected by a switch tube, and the switch tube is further connected to the first signal trace;
the first signal routing is used for outputting a control signal to the switch tube in a touch control stage so as to enable the switch tube to be opened.
3. The touch screen of claim 2, wherein the control pole of the switch transistor is connected to the first signal trace, the first pole of the switch transistor is connected to one of two adjacent graphic structures, and the second pole of the switch transistor is connected to the other of the two adjacent graphic structures.
4. The touch screen of claim 2, wherein a data line is disposed on a side of the first substrate close to the second substrate, and the pattern structure is a data line; or
And a grid line is arranged on one side of the first substrate base plate close to the second substrate base plate, and the pattern structure is arranged along the direction of the grid line.
5. The touch screen of claim 1, wherein the first electromagnetic touch layer comprises a plurality of first graphic structures and a second signal trace connected to each of the first graphic structures;
one side of each first graph structure is provided with an opening, and one side, facing the opening, of each first graph structure is connected with the second signal routing.
6. The touch screen of claim 5, wherein the openings of two adjacent first graphic structures are oriented oppositely.
7. The touch screen of claim 5, further comprising: and the second graphic structures are arranged corresponding to the first graphic structures and are positioned in the openings of the corresponding first graphic structures.
8. The touch screen of claim 1, wherein the second electromagnetic touch layer comprises a first routing layer, a second routing layer, and a plurality of piezoelectric structures located between the first routing layer and the second routing layer;
the first routing layer comprises a plurality of first routing wires, the second routing layer comprises a plurality of second routing wires, and each first routing wire is connected with the corresponding second routing wire through the corresponding piezoelectric structure.
9. The touch screen of claim 8, wherein a side of the first substrate close to the second substrate is provided with a gate line, and the first trace and the second trace are arranged along a direction of the gate line; or
One side of the first substrate base plate, which is close to the second substrate base plate, is provided with a data line, and the first routing line and the second routing line are arranged along the direction of the data line.
10. The touch screen of claim 5, wherein a side of the first substrate close to the second substrate is provided with a gate line, and the first pattern structure is arranged along the direction of the gate line; or
And a data line is arranged on one side of the first substrate base plate close to the second substrate base plate, and the first graph structure is arranged along the direction of the data line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710113623.3A CN106909260B (en) | 2017-02-28 | 2017-02-28 | Touch screen |
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| CN201710113623.3A CN106909260B (en) | 2017-02-28 | 2017-02-28 | Touch screen |
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| CN106909260B true CN106909260B (en) | 2020-02-07 |
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| CN103913873A (en) * | 2013-08-07 | 2014-07-09 | 上海天马微电子有限公司 | Liquid crystal display panel, display device and scanning method of display device |
| CN104252279A (en) * | 2014-09-28 | 2014-12-31 | 京东方科技集团股份有限公司 | Touch display panel, manufacturing method of touch display panel, drive method of touch display panel and touch display device with touch display panel |
| CN204066082U (en) * | 2014-09-28 | 2014-12-31 | 京东方科技集团股份有限公司 | Touch-control display panel and touch control display apparatus |
| CN104699360A (en) * | 2015-03-30 | 2015-06-10 | 京东方科技集团股份有限公司 | Electromagnetic touch control type three-dimensional grating and display device |
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| CN106909260A (en) | 2017-06-30 |
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