CN217484858U - Membrane, electric capacity touch-control writing screen and wisdom blackboard are write to blackboard - Google Patents

Abstract

The utility model discloses a membrane is write to blackboard, electric capacity touch-control writing screen and wisdom blackboard, the membrane is write to blackboard sets up on electric capacity touch-control module, electric capacity touch-control module includes a plurality of touch-control electrodes, the membrane is write to blackboard includes the stratum basale, write layer and conducting layer, write the one side of layer setting at the stratum basale, the conducting layer sets up the one side of keeping away from writing the layer on the stratum basale, the conducting layer includes a plurality of mutual insulation and is the conducting block that the array was arranged, when the user writes on the membrane is write to the blackboard, write the pressure that produces and make the conducting block who corresponds the position push down, and be close or the contact with touch-control electrode, thereby touch position can be confirmed to electric capacity touch-control module, and then the content that the record was written, official working and teaching efficiency have been improved. Furthermore, the utility model discloses in, the user can adopt any instrument to write, has improved the application scope that the membrane was write to the blackboard.

Description

Membrane, electric capacity touch-control writing screen and wisdom blackboard are write to blackboard

Technical Field

The utility model relates to an intelligence office equipment technical field especially relates to a membrane, electric capacity touch-control writing screen and wisdom blackboard are write to blackboard.

Background

The intelligent blackboard combines a traditional handwriting blackboard and multimedia equipment by adopting a capacitive touch technology, and a complete machine with a touch screen is embedded in a conventional blackboard so as to realize chalk and touch double writing.

An existing intelligent blackboard generally includes a main screen and two sub-screens, and the two sub-screens are respectively disposed at two sides of the main screen. The main screen is generally a large-screen all-in-one machine with an operating system and can be operated by touch. The auxiliary screen is used for writing.

Most of auxiliary screens in the existing intelligent blackboards can only be used simply and have writing functions, and the writing contents cannot be collected and recorded, so that the office or teaching efficiency is influenced undoubtedly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a membrane, electric capacity touch-control writing screen and wisdom blackboard are write to the blackboard, and it can improve official working and teaching efficiency, improves the application range that the membrane was write to the blackboard.

In a first aspect, the utility model provides a membrane is write to blackboard, the membrane is write to blackboard sets up on electric capacity touch module, and electric capacity touch module includes a plurality of touch-control electrodes, the membrane is write to blackboard includes:

a base layer;

a writing layer disposed on one side of the base layer;

the conducting layer, the conducting layer sets up keep away from on the stratum basale one side of writing the layer, the conducting layer includes a plurality of mutual insulation and is the conducting block that the array was arranged, the conducting block is receiving when writing the layer and writing the pressure that produces, can with the touch electrode contact of electric capacity touch module.

Optionally, the writing layer is uniformly provided with protruding particles on a side thereof away from the substrate layer.

Optionally, the surface roughness of the writing layer on the side away from the base layer is greater than or equal to 0.5 and less than or equal to Ra and less than or equal to 3.0.

Optionally, the blackboard writing film further includes an insulating layer, the insulating layer is disposed on one side of the conductive layer away from the base layer, and a through hole is formed in a position of the insulating layer corresponding to the conductive block.

Optionally, on the base layer, insulating strips are disposed between two adjacent rows of the conductive blocks and between two adjacent columns of the conductive blocks to form an insulating grid, and the thickness of the insulating strips is greater than that of the conductive blocks.

Optionally, the thickness of the insulating strip ranges from 50 μm to 500 μm.

Optionally, the width of the insulating strip ranges from 0.5mm to 5 mm.

In a second aspect, the utility model provides a capacitive touch writing screen, which comprises a blackboard writing film and a capacitive touch module;

the capacitive touch module comprises a plurality of touch electrodes;

the blackboard write the membrane set up in on the electric capacity touch module, the blackboard writes the membrane and includes:

a base layer;

a writing layer disposed on one side of the base layer;

the conducting layer, the conducting layer sets up keep away from on the stratum basale one side of writing the layer, the conducting layer includes a plurality of mutual insulation and is the conducting block that the array was arranged, the conducting block is receiving when writing the layer and writing the pressure that produces, can with the touch electrode contact of electric capacity touch module.

Optionally, the capacitive touch module includes:

a carrier substrate;

set up in many first touch-control electrodes and many second touch-control electrodes on the carrier substrate, first touch-control electrode includes a plurality of first electrode pieces that arrange and connect gradually along the first direction, second touch-control electrode includes a plurality of second electrode pieces that arrange and connect gradually along the second direction, first touch-control electrode with second touch-control electrode insulation isolation, and vertical projection on the carrier substrate is crisscross each other, first electrode piece with second electrode piece is in vertical projection on the carrier substrate does not overlap.

A third aspect, the utility model provides a wisdom blackboard, including the main screen and if the utility model discloses the electric capacity touch-control writing screen that the second aspect provided, the electric capacity touch-control writing screen sets up as vice screen main screen one side, the main screen with vice screen communication is connected, vice screen response is write the operation and is generated and write data, the main screen response in write the data show with write the orbit that the operation corresponds.

The utility model provides a membrane is write to blackboard, set up on electric capacity touch module, electric capacity touch module includes a plurality of touch-control electrodes, the membrane is write to blackboard includes the stratum basale, write layer and conducting layer, write the layer setting in one side of stratum basale, the conducting layer sets up the one side of keeping away from writing the layer on the stratum basale, the conducting layer includes a plurality of mutual insulation and is the conducting block that the array was arranged, when the user writes on the membrane at the blackboard, write the pressure that produces and make the conducting block who corresponds the position push down, and be close to or contact with touch-control electrode, thereby touch position can be confirmed to electric capacity touch module, and then the content that the record was write, official working and teaching efficiency have been improved. Furthermore, the utility model discloses in, the user can adopt any instrument to write, has improved the application scope that the membrane was write to the blackboard.

Drawings

The present invention will be described in further detail with reference to the drawings and examples.

Fig. 1 is a cross-sectional view of a blackboard writing film provided by an embodiment of the present invention;

fig. 2 is a bottom view of a writing film on a blackboard provided by an embodiment of the present invention;

fig. 3 is a cross-sectional view of a writing film on a blackboard provided by an embodiment of the present invention;

FIG. 4 is a partial view of a bottom view of the blackboard writing film of FIG. 3;

fig. 5 is a cross-sectional view of a writing film on a blackboard provided by an embodiment of the present invention;

FIG. 6 is a bottom view of the blackboard writing film of FIG. 5;

fig. 7 is a cross-sectional view of a capacitive touch writing screen according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a capacitive touch module according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an intelligent blackboard provided in the embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

To the above problem, the embodiment of the utility model provides a membrane is write to blackboard, blackboard write the membrane and set up on electric capacity touch module, and electric capacity touch module includes a plurality of touch-control electrodes, and the membrane is write to the blackboard includes:

a base layer;

the writing layer is arranged on one side of the base layer;

the conducting layer, the conducting layer sets up the one side of keeping away from writing the layer on the stratum basale, and the conducting layer includes a plurality of mutual insulation and is the conducting block that the array was arranged, and the conducting block is receiving when writing the layer and write the pressure that produces, can contact with the touch electrode of electric capacity touch module.

Fig. 1 is a cross-sectional view of a blackboard writing film according to an embodiment of the present invention, which illustratively includes a base layer 110, a writing layer 120, and a conductive layer 130, as shown in fig. 1.

The substrate layer 110 may be made of an organic flexible material, for example, polyethylene terephthalate (PET), Polyethyleneimine (PEI), etc., which is not limited herein.

The writing layer 120 is disposed on one side of the base layer 110, and the writing layer 120 may be used for writing, for example, using a chalk, a marker, or the like, on the writing layer 120. Illustratively, to reduce the reflection of light from writing layer 120 from affecting the user's view, the surface of writing layer 120 may be coated with a dark ink or writing layer 120 may be directly prepared with a dark material. The utility model provides a dark colour can be black, dark green etc.. In some embodiments of the present invention, the writing layer 120 may be integrated with the substrate layer 110, that is, the writing layer 120 is obtained by processing the surface layer of the substrate layer 110. The embodiment of the utility model provides a do not restrict stratum basale and writing layer structure or separation structure as an organic whole.

Fig. 2 is a bottom view of the writing film on the blackboard according to the embodiment of the present invention, as shown in fig. 1 and fig. 2, the conductive layer 130 is disposed on the substrate layer 110 and away from the writing layer 120, and the conductive layer 130 includes a plurality of conductive blocks 131 that are insulated from each other and arranged in an array. The conductive block may be Indium Tin Oxide (ITO), a metal mesh (e.g., a metal mesh formed by copper wires and silver nanowires), etc., which is not limited herein.

Specifically, the blackboard writing film can be attached to the capacitive touch module. The capacitive touch module can comprise a plurality of first touch electrodes and a plurality of second touch electrodes, and the first touch electrodes and the second touch electrodes are mutually crossed. The first touch electrode and the second touch electrode can be respectively used as a driving electrode and a sensing electrode and are connected with the touch chip. The touch control chip scans the first touch control electrodes one by one and sends excitation signals to the first touch control electrodes. The second touch electrode can generate induction at a node crossed with the first touch electrode to form node capacitance. When a user writes on the writing film of the blackboard, the pressure generated by writing enables the conductive block at the corresponding position to be pressed down and to be close to or in contact with the touch electrode (the first touch electrode or the second touch electrode), which is equivalent to connecting a new capacitor in parallel at two ends of the original node capacitor, and thus the total capacitance is reduced. All the second touch control electrodes receive the sensing signals at the same time, so that the capacitance value of all the second touch control electrodes at the node intersected with the first touch control electrode, namely the capacitance value of the two-dimensional plane of the whole blackboard writing film, can be obtained. The measuring circuit in the touch chip measures the capacitance, can sense the variation of the capacitance, and further calculates the position of the touch point on the blackboard writing film according to the variation, so that the content written on the blackboard writing film can be collected and recorded, and the office and teaching efficiency is improved. It should be noted that, in the embodiment of the present invention, the user can use any tool to write, for example, the user's finger, capacitance pen, chalk or other insulators, as long as the pressure generated during writing makes the electrode block press down, and the electrode block is close to or in contact with the touch electrode, so as to improve the application range of the blackboard writing film.

The embodiment of the utility model provides a membrane is write to blackboard, set up on electric capacity touch-control module, electric capacity touch-control module includes a plurality of touch-control electrodes, the membrane is write to the blackboard includes the stratum basale, write layer and conducting layer, write the layer setting in one side of stratum basale, the conducting layer sets up the one side of keeping away from writing the layer on the stratum basale, the conducting layer includes a plurality of mutual insulations and is the conducting block of array arrangement, when the user writes on the membrane at the blackboard, write the pressure that produces and make the conducting block who corresponds the position push down, and be close to or contact with touch-control electrode, thereby touch position can be confirmed to electric capacity touch-control module, and then the content that the record was written, official working and teaching efficiency have been improved. Furthermore, the utility model discloses in, the user can adopt any instrument to write, has improved the application scope that the membrane was write to the blackboard.

In some embodiments of the present invention, the conductive block 131 may be square, and the side length thereof may be set according to the required touch precision. For example, the touch accuracy requirement is higher, the size of the conductive block 131 can be set smaller, the touch accuracy requirement is lower, and the size of the conductive block 131 can be set larger. Illustratively, the conductive bumps 131 range in size from 8mm to 15 mm.

In some embodiments of the utility model, the one side of writing layer 120 and keeping away from stratum basale 110 evenly is provided with protruding granule to the roughness on layer 120 surface is write in the increase, and the phenomenon of skidding when avoiding writing improves and writes the smoothness degree. In addition, the rough surface can play the effect of diffuse reflection, avoids specular reflection to lead to the problem of specific viewing angle dazzling, has increased visual angle. For example, in some embodiments of the present invention, the raised particles may be formed on the surface of the writing layer 120 by using processes such as sand blasting, spraying, mold imprinting, and the like, which are not limited herein.

In some embodiments of the present invention, the surface roughness of the writing layer 120 away from the substrate layer 110 is 0.5 Ra 3.0. The surface roughness Ra is the arithmetic mean of the absolute values of profile offsets over a sample length, and Ra is more accurate as the number of measurement points is larger in actual measurement. Preferably, the surface roughness of the writing layer 120 on the side away from the base layer 110 is 1. ltoreq. Ra.ltoreq.2. Illustratively, the surface roughness Ra of the writing layer 120 on the side facing away from the base layer 110 may be 0.5, 0.8, 1, 1.5, 2, 2.5, or 3.

In some embodiments of the utility model, the blackboard writing film further includes an insulating layer, the insulating layer is disposed on one side of the conducting layer away from the basal layer, and the through hole is opened at the position of the insulating layer corresponding to the conducting block.

Fig. 3 is a sectional view of the blackboard writing film provided by the embodiment of the present invention, fig. 4 is a partial view of the bottom view of the blackboard writing film in fig. 3, exemplarily, as shown in fig. 3 and fig. 4, the blackboard writing film further includes an insulating layer 140, the insulating layer 140 is disposed on one side of the conductive layer 130 away from the substrate layer 110, the insulating layer 140 is provided with a through hole corresponding to the position of the conductive block 131, a part of the conductive block 131 is exposed, and the insulating layer 140 can be in a grid shape. The insulating layer 140 is used to isolate the conductive layer 130 from direct contact with the touch electrode of the capacitive touch module. Meanwhile, the insulating layer 140 has certain elasticity and can deform when being pressed, so that the conductive block 131 can contact with the touch electrode of the capacitive touch module. Illustratively, the material of the insulating layer 140 may be an insulating paste, and may be formed on the side of the conductive layer 130 away from the substrate layer 110 by using a printing, coating, or stamping process. Meanwhile, the insulating layer 140 may function to bond the blackboard writing film and the capacitive touch module.

In some embodiments of the utility model, on the stratum basale, be provided with the insulating strip between two adjacent rows of conducting blocks and between two adjacent columns of conducting blocks, form insulating net, the thickness of insulating strip is greater than the thickness of conducting block.

Fig. 5 is a cross-sectional view of the blackboard writing film that the embodiment of the utility model provides, fig. 6 is the bottom view of blackboard writing film in fig. 5, and is illustrative, as shown in fig. 5 and fig. 6, in some embodiments of the utility model, on the stratum basale 110, be provided with the insulating strip 151 between two adjacent lines of conducting blocks 131 and between two adjacent columns of conducting blocks 131, form insulating grid, the thickness of insulating strip 151 is greater than the thickness of conducting block 131 for the touch electrode of conducting layer 130 and electric capacity touch module can be kept apart to the insulating strip 151, avoids the two direct contact. Meanwhile, the insulating strips 151 have certain elasticity and can deform when being pressed, so that the conductive blocks 131 can be in contact with the touch electrodes of the capacitive touch module. For example, the material of the insulating strip 151 may be insulating glue, and may be formed between two adjacent rows of conductive bumps 131 and between two adjacent columns of conductive bumps 131 by using a printing, coating, or stamping process. Meanwhile, the insulating strips 151 can play a role in adhering the blackboard writing film and the capacitive touch module.

In some embodiments of the present invention, the thickness of the insulating layer 140 and the insulating strips 151 may be selected according to actual design requirements, and the thickness of the insulating layer 140 and the insulating strips 151 ranges from 50 μm to 500 μm.

In some embodiments of the present invention, the width of the insulating strip 151 may be set according to the required touch precision, for example, the touch precision requirement is higher, the width of the insulating strip 151 may be set to be narrower, the touch precision requirement is lower, and the width of the insulating strip 151 may be set to be wider. Illustratively, the width of the insulating strips 151 ranges from 0.5mm to 5 mm.

The embodiment of the utility model provides a still provide an electric capacity touch-control writing screen, figure 7 is the utility model provides a pair of electric capacity touch-control writing screen's cross-sectional view, as shown in figure 7, this electric capacity touch-control writing screen includes that the blackboard writes membrane 100 and electric capacity touch-control module 200.

The capacitive touch module 200 includes a plurality of touch electrodes. As described in the foregoing embodiments, the blackboard writing film 100 is disposed on the capacitive touch module 200, and referring to fig. 1 to 6, the blackboard writing film 100 includes a base layer 110, a writing layer 120, and a conductive layer 130. The writing layer 120 is disposed on one side of the base layer 110, and the writing layer 120 may be used for writing. The conductive layer 130 is disposed on the substrate layer 110 at a side away from the writing layer 120, and the conductive layer 130 includes a plurality of conductive blocks 131 insulated from each other and arranged in an array. When a user writes on the blackboard writing film, the pressure generated by writing enables the conductive block at the corresponding position to be pressed down and to be close to or contacted with the touch electrode, namely, a new capacitor is connected in parallel at two ends of the original node capacitor, so that the total capacitance is reduced, the capacitance is measured by a measuring circuit in the touch chip, the variation of the capacitance can be sensed, the position of the touch point on the blackboard writing film is calculated according to the variation, and therefore, the content written on the blackboard writing film can be collected and recorded, and the office and teaching efficiency is improved.

In some embodiments of the present invention, the capacitor touch module includes:

a carrier substrate;

the touch control device comprises a carrier substrate, a plurality of first touch control electrodes and a plurality of second touch control electrodes, wherein the first touch control electrodes are arranged on the carrier substrate and comprise a plurality of first electrode blocks which are arranged along a first direction and are connected in sequence, the second touch control electrodes comprise a plurality of second electrode blocks which are arranged along a second direction and are connected in sequence, the first touch control electrodes and the second touch control electrodes are insulated and isolated, vertical projections of the first electrode blocks and the second electrode blocks on the carrier substrate are mutually staggered, and the vertical projections of the first electrode blocks and the second electrode blocks on the carrier substrate are not overlapped.

Fig. 8 is a schematic structural diagram of a capacitive touch module according to an embodiment of the present invention, where the capacitive touch module includes a carrier substrate 210, and a plurality of first touch electrodes 220 and a plurality of second touch electrodes 230 disposed on the carrier substrate 210. The first touch electrode 220 includes a plurality of first electrode blocks 221 arranged along a first direction and connected in sequence, the second touch electrode 230 includes a plurality of second electrode blocks 231 arranged along a second direction and connected in sequence, the first touch electrode 220 and the second touch electrode 230 are insulated and isolated, vertical projections of the first electrode blocks 221 and the second electrode blocks 231 on the carrier substrate 210 are staggered, and the vertical projections of the first electrode blocks 221 and the second electrode blocks 231 on the carrier substrate 210 are not overlapped. Illustratively, the first direction is perpendicular to the second direction. The first electrode and the second electrode are isolated, and specifically, at the intersection of the first touch electrode 220 and the second touch electrode 230, the first touch electrode 220 and the second touch electrode 230 are located at different layers in the thickness direction, so that the first touch electrode 220 and the second touch electrode 230 are not in contact. Wherein, first touch-control electrode 220 is the response electrode, and second touch-control electrode 230 is the drive electrode, or, first touch-control electrode 220 is the drive electrode, and second touch-control electrode 230 is the response electrode, the embodiment of the utility model provides a do not do the restriction here.

The embodiment of the utility model provides a still provide a wisdom blackboard, fig. 9 the utility model provides a pair of structure schematic diagram of wisdom blackboard, this wisdom blackboard include main screen 1 with if the utility model discloses the electric capacity touch-control writing screen 2 that aforementioned embodiment provided, electric capacity touch-control writing screen is as vice screen, sets up in 1 both sides of main screen, and main screen 1 and vice 2 communication of screen are connected. The main screen can be a large-screen all-in-one machine with an operating system and can be operated in a touch mode. The auxiliary screen responds to the writing operation to generate writing data, and the main screen responds to the writing data to display a writing track corresponding to the writing operation. That is, when a user writes on the auxiliary screen 2 by using a chalk, a mark pen, etc., the auxiliary screen 2 can collect the writing track of the user and synchronously transmit the writing track to the main screen 1, so that the writing content of the user is displayed on the main screen 1, and the data cooperation of the main screen 1 and the auxiliary screen 2 is realized.

In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be in any way limiting.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it will be understood by those skilled in the art that the specification as a whole and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. The utility model provides a membrane is write to blackboard, its characterized in that, the membrane is write to blackboard sets up on electric capacity touch module, and electric capacity touch module includes a plurality of touch-control electrodes, the membrane is write to blackboard includes:

a base layer;

a writing layer disposed on one side of the base layer;

the conducting layer is arranged on the basal layer and far away from one side of the writing layer, the conducting layer comprises a plurality of conducting blocks which are insulated from each other and arranged in an array mode, and the conducting blocks can be in contact with the touch electrode of the capacitance touch module when pressure generated by writing on the writing layer is applied to the conducting blocks.

2. The blackboard writing film according to claim 1, characterised in that the side of the writing layer remote from the base layer is uniformly provided with raised particles.

3. The blackboard writing film according to claim 2, characterised in that the surface roughness of the writing layer on the side remote from the base layer is 0.5 Ra 3.0.

4. The blackboard writing film according to any one of claims 1 to 3, further comprising an insulating layer, wherein the insulating layer is disposed on one side of the conductive layer away from the base layer, and a through hole is formed in a position of the insulating layer corresponding to the conductive block.

5. A blackboard writing film according to any one of claims 1 to 3, characterised in that on the base layer, insulating strips are provided between two adjacent rows of the conductive blocks and between two adjacent columns of the conductive blocks to form an insulating grid, the thickness of the insulating strips being greater than the thickness of the conductive blocks.

6. The blackboard writing film according to claim 5, characterised in that the thickness of the insulating strip is in the range 50-500 μm.

7. The blackboard writing film of claim 6, wherein the width of the insulating strip is in the range of 0.5mm to 5 mm.

8. A capacitive touch writing screen is characterized by comprising a blackboard writing film and a capacitive touch module;

the capacitive touch module comprises a plurality of touch electrodes;

the blackboard write the membrane set up in on the electric capacity touch module, the blackboard write the membrane and include:

a base layer;

a writing layer disposed on one side of the base layer;

the conducting layer is arranged on the basal layer and far away from one side of the writing layer, the conducting layer comprises a plurality of conducting blocks which are insulated from each other and arranged in an array mode, and the conducting blocks can be in contact with the touch electrode of the capacitance touch module when pressure generated by writing on the writing layer is applied to the conducting blocks.

9. The capacitive touch writing screen of claim 8, wherein the capacitive touch module comprises:

a carrier substrate;

set up in many first touch-control electrodes and many second touch-control electrodes on the carrier substrate, first touch-control electrode includes a plurality of first electrode pieces that arrange and connect gradually along the first direction, second touch-control electrode includes a plurality of second electrode pieces that arrange and connect gradually along the second direction, first touch-control electrode with second touch-control electrode insulation isolation, and vertical projection on the carrier substrate is crisscross each other, first electrode piece with second electrode piece is in vertical projection on the carrier substrate does not overlap.

10. An intelligent blackboard, characterized in that, includes the main screen and the electric capacity touch-control writing screen of claim 8 or 9, electric capacity touch-control writing screen sets up as the auxiliary screen main screen one side, the main screen with the auxiliary screen communication is connected, the auxiliary screen is responded to and is write the operation and generate and write data, the main screen respond to write the data show with write the writing orbit that the operation corresponds.

Images