KR20180107800A - Force sensitive transducer and method for preparing the same - Google Patents

Abstract

The present invention relates to a force detecting apparatus, having excellent bending characteristics and moisture-proofing and water-proofing effects. The force detecting apparatus comprises: a first sealing layer; a force measuring unit formed on the first sealing layer; and a second sealing layer formed on the force measuring unit. Moreover, the first sealing layer and the second sealing layer can seal the force measuring unit by using an adhesive.

Description

Technical Field [0001] The present invention relates to a force sensing device and a method of manufacturing the same,

The present invention relates to a force sensing device and a method of manufacturing the same.

A force sensing device is a device that converts the applied force magnitude change into an electrical signal, and is applied to various fields requiring force sensing.

In recent years, force sensing devices have been applied to distinguish effective touches in keyboards, mobile devices, and the like. In particular, many researches have been conducted to apply force sensing devices to robots as sensory sensors. To this end, flexibility and thinning characteristics of the force sensing device are required.

However, in the conventional force sensing device, a non-conductive substrate on which conductive lead is printed and a substrate on which a force recognition ink is printed are combined with a spacer so that it is thick and has no flexibility, There are limitations in applying to devices. Therefore, a force sensing device capable of being flexible and thin is needed.

Prior art related to this is disclosed in Korean Patent Publication No. 1996-0001962.

SUMMARY OF THE INVENTION An object of the present invention is to provide a force sensing apparatus having excellent bending characteristics, moisture-proofing and waterproofing effects, a thin thickness, and a method of manufacturing the same.

It is another object of the present invention to provide a force sensing device which is excellent in strength sense intelligence and simple in manufacturing process and a method of manufacturing the same.

The above and other objects of the present invention can be achieved by the present invention described below.

One aspect of the present invention is a force sensing device comprising: a first encapsulation layer; A force measuring unit formed on the first sealing layer; And a second sealing layer formed on the force measuring portion, wherein the first sealing layer and the second sealing layer are formed to seal the force measuring portion via an adhesive.

The force measuring unit may include an electrode insulator composite layer; And a resistance layer formed on the electrode insulator complex layer.

Wherein the electrode insulator composite layer comprises an electrode layer and an insulator, the electrode layer comprising: a plurality of first branch electrodes formed in an electrode insulator region on the first encapsulation layer in a first direction; A first bus bar electrode; And a first finger electrode formed in a second direction to electrically connect the first branch electrode to the first bus bar electrode; And a plurality of second branch electrodes formed in an electrode insulator region on the first sealing layer in a first direction; A second bus bar electrode; And a second electrode portion including a second finger electrode formed in a second direction to electrically connect the second branch electrode to the second bus bar electrode, wherein the first branch electrode and the second branch electrode form a second The insulator includes a plurality of insulating bars formed in a second direction, and the insulating bar may electrically isolate the electrode layer and the resistive layer from each other.

The second encapsulation layer may have a window in which the first and second bus bar electrodes are electrically connected to the outside.

The electrode insulator complex layer may include an air cell.

The force sensing device may further include an adhesive layer formed on the second sealing layer.

The first or second sealing layer may be formed of a composition for a sealing layer comprising at least one of an epoxy resin, an olefin resin and a urethane resin.

The electrode layer may be formed of a composition for an electrode layer including at least one of a conductive paste and a conductive polymer.

The resistive layer may be formed of a composition for a resistive layer including a pressure-sensitive material including ITO nanoparticles and a resin.

According to another aspect of the present invention, a method of manufacturing a force sensing device includes: forming a first sealing layer on a first mold releasing member; Forming an electrode insulator composite layer on the first encapsulation layer; Forming a second encapsulation layer on the second release member; Forming a resistive layer on the second encapsulant layer; And sealing the first encapsulation layer on which the electrode insulator composite layer is formed and the second encapsulation layer on which the resistance layer is formed through the adhesive between the electrode insulator complex layer and the resistance layer.

Wherein the step of forming the electrode insulator composite layer includes the steps of forming a first electrode portion and a second electrode portion in an electrode insulator region on the first encapsulation layer and separating the first electrode portion, Forming a plurality of insulating bars in a second direction so as to electrically insulate the plurality of first branched electrodes, wherein the first electrode portion includes a plurality of first branched electrodes formed in a first direction; A first bus bar electrode; And a first finger electrode formed in a second direction to electrically connect the first branch electrode to the first bus bar electrode, wherein the second electrode unit includes a plurality of second branch electrodes formed in a first direction; A second bus bar electrode; And a second finger electrode formed in a second direction to electrically connect the second branch electrode to the second bus bar electrode.

The second encapsulation layer may have windows formed such that the first and second bus bar electrodes are electrically connected to the outside.

The electrode insulator complex layer may include an air cell.

The method of manufacturing the force sensing device may further include forming an adhesive layer on the second sealing layer.

One or more of the first sealing layer, the first electrode portion and the second electrode portion, the insulating bar, the resistance layer and the second electrode portion may be formed by a method of coating, offset printing or screen printing have.

The present invention has the effect of providing a force sensing device which is excellent in bending characteristics, moisture-proof and waterproof effect, thin in thickness, excellent in force detection and simple in manufacturing process, and a manufacturing method thereof.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a simplified cross-sectional view of a force sensing device according to an embodiment of the present invention. FIG.
FIG. 2 is a simplified perspective view of a structure of an electrode layer and an insulator of a force sensing device according to an embodiment of the present invention.
3 is a plan view of a step of forming a first encapsulation layer in a method of manufacturing a force sensing device according to an embodiment of the present invention.
FIG. 4 is a plan view of a step of forming electrode layers (a first electrode portion and a second electrode portion) in a method of manufacturing a force sensing device according to an embodiment of the present invention.
5 is a plan view of a step of forming an insulation bar in a method of manufacturing a force sensing device according to an embodiment of the present invention.
FIG. 6 is a view illustrating a step of forming a resistive layer on a second encapsulation layer of a method of manufacturing a force sensing device according to an embodiment of the present invention.
FIG. 7 is a simplified view of an adhesive layer formed for sealing a composite electrode insulating layer in a method of manufacturing a force sensing device according to an embodiment of the present invention.
8 is a plan view schematically illustrating a step of sealing the first encapsulation layer and the second encapsulation layer in the method of manufacturing a force sensing device according to an embodiment of the present invention.
FIG. 9 is a simplified sectional view taken along the line A-A 'in FIG. 8. FIG.
Fig. 10 shows a relationship between force and conductivity according to an embodiment of the present invention.

In order to more clearly describe the present invention, some terms will be used with the following meaning.

In the present invention, the 'electrode insulator region' is a region indicated by 1 on the first encapsulation layer in FIG. 4, and means an area where an electrode layer and an insulation bar are formed.

In the present invention, 'first direction' refers to the longitudinal direction of the branch electrodes, and refers to the first direction shown in FIG.

In the present invention, the 'second direction' means the length direction of the finger electrode, which means the second direction shown in FIG.

In the present invention, 'insulator' may mean a plurality of insulating bars. Also, in some cases, 'insulator' may refer to a dielectric, in which case the insulation bar may refer to a dielectric bar.

Embodiments of the present application will now be described in more detail with reference to the accompanying drawings. However, the techniques disclosed in the present application are not limited to the embodiments described herein but may be embodied in other forms.

It should be understood, however, that the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the width, thickness, and the like of the components are enlarged in order to clearly illustrate the components of each device. Also, while only a portion of the components is shown for convenience of explanation, those skilled in the art will readily recognize the remaining portions of the components.

It is to be understood that when an element is described above as being located at or above another element, it is to be understood that the element may be located directly on or under the other element ' Quot; means that an additional element can be interposed between the elements. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In the drawings, the same reference numerals denote substantially the same elements.

It should be understood, however, that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise, and the terms "comprise" Acts, components, parts, or combinations thereof, but does not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof It should be understood that it does not.

Hereinafter, a force sensing apparatus according to one embodiment of the present invention will be described with reference to FIG.

Force detection  Device

Referring to FIG. 1, the force sensing device of one embodiment includes a first encapsulation layer 20; A force measuring part 5 formed on the first sealing layer 20; And a second sealing layer 70 formed on the force measuring part 5 and the first sealing layer 20 and the second sealing layer 70 are bonded to the force measuring part 5).

The force sensing device of the present invention does not include a substrate. Since the conventional force sensing device is formed on the substrate, the thickness is thick and the flexibility is insufficient, so that there is a limitation in applying to a flexible device. The force sensing device of the present invention has a structure that is sealed with the first and second sealing layers 20 and 70 without including the base material, so that the thickness can be made 100 탆 or less, and the bending property is excellent. Therefore, there is an advantage that it is applicable not only to a flexible device but also to a three-dimensional surface.

The first sealing layer 20 together with the second sealing layer 70 seals the force measuring portion 5 so as to prevent the mass transfer between the force measuring portion 5 and the outside and the force measuring portion 5 Thereby providing a space that can be formed.

The first sealing layer 20 may be formed of a composition containing at least one of an epoxy resin, an olefin resin and a urethane resin. By applying the above composition, the first encapsulation layer 20 is excellent in flexibility and can be applied to a flexible device. The composition for the sealing layer may be a commercially available crosslinkable polymer. For example, CR-18T from Asahi Corp. may be used, but is not limited thereto.

The second encapsulation layer 70 is substantially the same as the first encapsulation layer 20, but a window may be formed in which the first and second bus bar electrodes are electrically connected to the outside. For example, the window may be formed in an open form. By forming a window in the second encapsulation layer 70, the magnitude of the force applied to the device can be determined using the difference in resistivity of the first and second bus bar electrodes 36 and 37 from the outside.

In addition, the force sensing device of the present invention has a structure in which the first sealing layer 20 and the second sealing layer 70 seal the force measuring portion 5, thereby exhibiting excellent moisture-proof and waterproofing effects.

Although not shown, the force sensing device may include at least one of a resistivity measuring unit for measuring a difference in resistivity of the first and second bus bar electrodes, an arithmetic unit for calculating the magnitude of the force applied to the device, and a display unit for displaying information .

The adhesive is flexible and can be used as long as it can adhere the first and second sealing layers 20, 70. Specifically, an ultraviolet curable adhesive can be used. For example, the 7555 product from 3M may be used, but is not limited thereto.

The first encapsulation layer and the second encapsulation layer may be formed to a thickness of 3 탆 to 15 탆, specifically 5 탆 to 10 탆. By sealing the force sensing device within the above range, it is excellent in dampproof and waterproof effect and can be thinned.

The force measuring unit 5 may include an electrode insulator composite layer 30 and a resistance layer 60 formed on the electrode insulator composite layer 30. [

Hereinafter, the electrode insulator composite layer 30 of one embodiment of the present invention will be described with reference to FIG.

2, the electrode insulator composite layer 30 includes an electrode layer and an insulator, and the electrode layer includes a plurality of first branches (not shown) formed in an electrode insulator region on the first encapsulation layer 20 in a first direction, An electrode 32; A first bus bar electrode 36; And a first finger electrode (34) formed in a second direction to electrically connect the first branch electrode (32) to the first bus bar electrode (36). And a plurality of second branch electrodes (33) formed in an electrode insulator region on the first sealing layer in a first direction; A second bus bar electrode 37; And a second finger electrode (35) formed in a second direction to electrically connect the second branch electrode (33) to the second bus bar electrode (37), wherein the second finger electrode The insulator includes a plurality of insulated bars (38) formed in a second direction, and the insulated bar (38) comprises a plurality of insulated bars And may electrically isolate the electrode layer and the resistance layer 60 from each other.

The first and second branch electrodes and the first and second finger electrodes may have a width of 3 탆 to 500 탆, specifically 5 탆 to 100 탆, more specifically 5 탆 to 10 탆. The first and second branch electrodes and the first and second finger electrodes may have a thickness of 3 탆 to 15 탆, specifically, 5 탆 to 10 탆. In the above-mentioned range, the reaction speed of the force sensing device is excellent, and it is not only thinner but also excellent in the flexible property.

More specifically, the electrode insulator composite layer 30 will be described with reference to Fig. 9 is a cross-sectional view taken along the line A-A 'in Fig. 8.

The insulating bar 38 is formed thicker than the electrode layer so as to separate the electrode layers (the first and second branch electrodes, the first and second finger electrodes) from the resistance layer 60. Specifically, the thickness of the insulating bar 38 may be 1.1 to 6 times, specifically 1.1 to 4 times, more specifically 1.5 to 2.5 times the thickness of the electrode layer. The thickness of the insulating bar 38 may be 3.3 탆 to 90 탆, specifically, 3.3 탆 to 60 탆, more specifically 4.5 탆 to 40 탆. Not only is the force sensing device of the above-mentioned range excellent in detecting force, but also excellent in durability.

The insulating bar 38 and the resistance layer 60 are formed on the first and second branch electrodes 32 and 33 and the first and second finger electrodes 34 and 35 by the insulating bar 38 thicker than the electrode layer An air cell can be formed.

The insulating bar 38 may be formed in a wider range than the electrode layer in order to prevent the electrode layer from being electrically connected to the outside through the adhesive layer 50. Specifically, the insulating bar 38 may be formed on the first sealing layer 20 between the adhesive 50 and the electrode layer.

Since the insulator composite layer 30 has the structure described above, when the force is not applied to the device, the resistive layer 60 is not in electrical contact with the electrode layer. The bus bar electrodes 36 and 37 connected to the finger electrodes 34 and 35 when the resistance layer 60 is electrically contacted with the electrode layers (branch electrodes 32 and 33) And the magnitude of the force applied to the device can be calculated from the amount of change in the resistivity.

The electrode layer may be formed of a composition for an electrode layer including at least one of a conductive paste and a conductive polymer. For example, the electrode layer may be formed of a silver paste. By applying the above composition, the electrode layers (the first and second branch electrodes, the first and second finger electrodes, the first and second bus bar electrodes) are excellent in flexibility and can be applied to a flexible device have.

The insulating bar 38 may be used as long as it can insulate the electrode layer from the resistive layer 60. For example, the insulating bar may be formed of a dielectric.

In FIG. 2, the bus bar electrodes 36 and 37 illustrate force sensing devices formed adjacent to the first and second branch electrodes 32 and 33, but are not limited thereto. The first and second bus bar electrodes 36 and 37 may be spaced apart from each other. In this case, it is possible to prevent the bus bar electrode and the measuring unit, the calculating unit, and the display unit connected thereto from being damaged by the force applied to the force detecting device.

The resistance layer 60 is spaced apart from the electrode layer by the insulating bar 38 when no force is applied to the force sensing device. When a force is applied to the force sensing device, the resistive layer 60 can be in electrical contact with the electrode layer to change the resistivity of the bus bar electrodes 36, 37 to determine the force applied to the device therefrom.

In addition, the resistive layer 60 may be formed of a composition for a resistive layer including a pressure-sensitive material including ITO nanoparticles and a resin. The greater the force applied to the device, the greater the change in resistivity of the bus bar electrodes 36, 37, thereby determining the force applied to the device. The resin is not limited as long as it can form a resistive layer with the ITO nanoparticles.

In an embodiment, the composition for a resistance layer may include at least one of ITO nanoparticles, semiconductor powder, resin, carbon powder, and silicon carbide. The resistive layer formed of the composition has an advantage of excellent detection power.

The resistive layer may have a thickness of 0.5 탆 to 10 탆, specifically 1 탆 to 5 탆. In the above-mentioned range, the sense of intelligence of power is excellent and it is possible to reduce the thickness.

In other embodiments, the force sensing device may further include an adhesive layer (not shown) on the second encapsulation layer 70. The force sensing device of the present invention has excellent bending characteristics and can be applied to a surface with three-dimensional curvature. To this end, the adhesive layer may be formed and adhered to the surface to be bonded.

The adhesive layer can be used as long as it has flexibility. Specifically, an ultraviolet curable adhesive can be used. For example, 3M's 9705 product may be used, but is not limited thereto.

Hereinafter, a method of manufacturing the force sensing device according to one embodiment of the present invention will be described with reference to FIGS. 3 to 8. FIG.

Force detection  Method of manufacturing a device

According to another aspect of the present invention, a method of manufacturing a force sensing device includes: forming a first sealing layer on a first mold releasing member; Forming an electrode insulator composite layer on the first encapsulation layer; Forming a second encapsulation layer on the second release member; Forming a resistive layer on the second encapsulant layer; And sealing the first insulating layer having the electrode insulating composite layer formed thereon and the second sealing layer having the resistance layer formed therebetween through the adhesive agent.

Wherein the step of forming the electrode insulator composite layer includes the steps of forming a first electrode portion and a second electrode portion in an electrode insulator region on the first encapsulation layer and separating the first electrode portion, Forming a plurality of insulating bars in a second direction so as to electrically insulate the plurality of first branched electrodes, wherein the first electrode portion includes a plurality of first branched electrodes formed in a first direction; A first bus bar electrode; And a first finger electrode formed in a second direction to electrically connect the first branch electrode to the first bus bar electrode, wherein the second electrode unit includes a plurality of second branch electrodes formed in a first direction; A second bus bar electrode; And a second finger electrode formed in a second direction to electrically connect the second branch electrode to the second bus bar electrode.

3 is a plan view of a step of forming a first encapsulation layer in a method of manufacturing a force sensing device according to an embodiment of the present invention. (The first release member is not shown)

The step of forming the first sealing layer on the first mold releasing member may be performed by coating, offset printing or screen printing the composition for the first sealing layer on the releasing member. By using the composition for the encapsulation layer, there is an advantage that the first encapsulation layer can be formed by a simple process such as coating or printing. The composition for the first sealing layer is substantially the same as that described in the force sensing device of the present invention.

The first release member can be used without limitation as long as it has releasing ability. For example, polyester film, HDPE, or a release film of 3M Company can be used, but the present invention is not limited thereto. Specifically, the first release member may have a thickness of 50 to 100 占 퐉, but is not limited thereto.

FIG. 4 is a plan view of a step of forming electrode layers (a first electrode portion and a second electrode portion) in a method of manufacturing a force sensing device according to an embodiment of the present invention.

Forming the electrode layers (the first electrode portion and the second electrode portion) includes forming the first electrode portion and the second electrode portion in the electrode insulator region on the first sealing layer.

The first electrode unit includes a plurality of first branch electrodes formed in a first direction; A first bus bar electrode; And a first finger electrode formed in a second direction to electrically connect the first branch electrode to the first bus bar electrode, wherein the second electrode unit includes a plurality of second branch electrodes formed in a first direction; A second bus bar electrode; And a second finger electrode formed in a second direction to electrically connect the second branch electrode to the second bus bar electrode.

The step of forming the electrode layers (the first electrode portion and the second electrode portion) on the first sealing layer may include forming the electrode layer composition on the first sealing layer by coating, offset printing or screen printing can do. By using the composition for an electrode layer, an electrode layer can be formed by a simple process such as coating or printing. The composition for the electrode layer is substantially the same as that described in the force sensing device of the present invention.

FIG. 5 is a view illustrating a step of forming an insulating bar of the method of manufacturing a force sensing device according to an embodiment of the present invention.

The forming of the insulating bars may include forming the plurality of insulating bars in the second direction so as to electrically isolate the first and second electrode portions and the resistance layer from each other to electrically insulate the first and second electrode portions. For example, the insulating bar may be formed by a method of coating, offset printing or screen printing, the components being substantially the same as those described in the force sensing device of the present invention.

The insulating bar may be formed in an area wider than the width of the electrode layer so that the electrode layer is not electrically connected to the outside. Specifically, an insulating bar may be formed between the adhesive and the electrode layer on the first sealing layer.

In an embodiment, the insulating bar may be thicker than the first and second branch electrodes, the first and second finger electrodes.

FIG. 6 is a view illustrating a step of forming a resistive layer on a second encapsulation layer of a method of manufacturing a force sensing device according to an embodiment of the present invention.

The second sealing layer for forming the resistive layer can be formed on the second release member. The specific method is substantially the same as that of forming the first sealing layer on the first mold releasing member.

A resistive layer (60) is formed on the second encapsulant layer (70). Coating, offset printing or screen printing is not easy when the resistive layer is formed on an insulating bar. Therefore, the resistive layer is formed of the resistive layer composition on the second sealing layer, and can be formed by a method of coating, offset printing, or screen printing in detail. By using the composition for a resistance layer, an electrode layer can be formed by a simple process such as coating or printing.

The second encapsulation layer having the resistive layer may be bonded to the first encapsulation layer 20 via the adhesive layer 50 to seal the electrode layer, the insulation bar and the resistive layer.

The second sealing layer may be formed with windows 36 and 37 so that the first and second bus bar electrodes can be electrically connected to the outside. For example, the window may be formed in an open form.

FIG. 7 illustrates an adhesive layer formed to seal a composite electrode insulating layer in a method of manufacturing a force sensing device according to an embodiment of the present invention.

The adhesive layer is formed around the first bus bar and the second bus bar electrode outside the electrode insulating region of the first sealing layer and bonding the first sealing layer and the second sealing layer to the outside of the force sensing device, As shown in Fig. (The electrode layer and the insulating bar are not formed in the regions other than the electrode insulating region 1), the first bus bar and the second bus bar are separated from the window of the second sealing layer by the adhesive layer around the first bus bar and the second bus bar And at the same time, the portions other than the first bus bar and the second bus bar of the window can be sealed. Thus, the force sensing device according to the present invention is excellent in moisture-proof and waterproof effect.

8 is a plan view schematically illustrating a step of sealing the first encapsulation layer and the second encapsulation layer in the method of manufacturing a force sensing device according to an embodiment of the present invention.

The first encapsulation layer having the electrode insulation composite layer including the electrode layer and the insulation bar and the second encapsulation layer having the resistance layer can be sealed with the adhesive layer formed as shown in FIG. 7 to seal the electrode insulation composite layer and the resistance layer . The force sensing device manufactured by the manufacturing method of the present invention has a structure that is sealed with the first and second sealing layers 20 and 70 without including the base material so that the thickness can be made 100 탆 or less, great. Therefore, there is an advantage that it is applicable not only to a flexible device but also to a three-dimensional surface.

In FIGS. 3 to 8, the first and second bus bar electrodes 36 and 37 are formed adjacent to the first and second branch electrodes. However, the present invention is not limited thereto. The first and second bus bar electrodes 36 and 37 may be spaced apart from each other. In this case, it is possible to prevent the bus bar electrode from being damaged by the force applied to the force sensing device.

In another embodiment, the method of manufacturing a force sensing device may further comprise forming an adhesive layer on the second sealing layer. The adhesive layer may be formed by a method of coating, offset printing, or screen printing with a UV curable adhesive. The components of the adhesive layer are substantially the same as those described in the force sensing device of the present invention.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.

The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.

Example

A composition for an encapsulating layer containing an epoxy resin, polyethylene and polyurethane was coated on a release film having a thickness of 50 占 퐉 to form a first encapsulation layer having a thickness of 5 占 퐉 and a silver paste was applied on the first encapsulation layer in a first direction And was printed with a thickness of 5 탆. Then, an insulating bar formed of a dielectric material was formed in a thickness of 15 mu m in the second direction.

A composition for an encapsulation layer containing an epoxy resin, polyethylene and polyurethane was coated on a release film having a thickness of 50 mu m to form a second encapsulation layer having a thickness of 5 mu m, and FSR (ITO nanoparticles And a pressure-sensitive material including a resin) was coated to a thickness of 1 mu m.

The first and second sealing layers were laminated by using an adhesive to seal the electrode layer, the insulating bar and the resistance layer, and the release film was removed to prepare a force sensing device.

The force sensing device fabricated above was 116 탆 thick and maintained water and moisture resistance for 24 hours in 1 m depth of water.

In order to examine the force sensing performance of the force sensing device, the weight of the force sensing device was varied from 0 g to 1000 g, and the conductivity was measured according to the weight. The unit of the X-axis in FIG. 10 is g, and the unit of the Y-axis is (1 /?).

The force sensing device of the present invention is thin and has a thickness of 116 탆 and is capable of maintaining waterproof and moisture-proof even in a 1-m depth water for 24 hours, and is excellent in waterproofing and moisture-proofing effects, The conductivity change with the increase is constant, and the force sensing ability is also excellent.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are in all respects illustrative and not restrictive.

The first finger electrode has a first finger electrode and a second finger electrode. The second finger electrode is electrically connected to the second finger electrode. Second bus bar electrode 38: insulating bar 50: adhesive layer 60: resistive layer 70: second sealing layer

Claims (15)

A first encapsulation layer;
A force measuring unit formed on the first sealing layer;
And a second sealing layer formed on the force measuring portion,
And the first sealing layer and the second sealing layer are configured to seal the force measuring portion via an adhesive.
The apparatus according to claim 1,
Electrode insulator composite layer; And
A resistance layer formed on the electrode insulator complex layer;
/ RTI >
The electrode assembly according to claim 2,
An electrode layer and an insulator,
Wherein,
A plurality of first branch electrodes formed in an electrode insulator region on the first sealing layer in a first direction; A first bus bar electrode; And a first finger electrode formed in a second direction to electrically connect the first branch electrode to the first bus bar electrode; And
A plurality of second branch electrodes formed in an electrode insulator region on the first seal layer in a first direction; A second bus bar electrode; And a second electrode portion including a second finger electrode formed in a second direction to electrically connect the second branch electrode to the second bus bar electrode,
The first branch electrode and the second branch electrode are alternately formed in the second direction,
The insulator
A plurality of insulating bars formed in a second direction,
Wherein the insulating bar electrically isolates the electrode layer and the resistive layer from each other.
The force sensing device of claim 1, wherein the second encapsulation layer is formed with a window in which the first and second bus bar electrodes are electrically connected to the outside.
The force sensing device of claim 2, wherein the electrode insulator composite layer comprises an air cell.
The force sensing device of claim 1, wherein the force sensing device further comprises an adhesive layer formed on the second sealing layer.
The force sensing apparatus according to claim 1, wherein the first or second sealing layer is formed of a composition for a sealing layer comprising at least one of an epoxy resin, an olefin resin and a urethane resin.
The electrode according to claim 1,
A conductive paste, and a conductive polymer.
The force sensing device of claim 1, wherein the resistive layer is formed of a composition for a resistive layer comprising a pressure sensitive material comprising ITO nanoparticles and a resin.
Forming a first encapsulation layer on the first mold release member;
Forming an electrode insulator composite layer on the first encapsulation layer;
Forming a second encapsulation layer on the second release member;
Forming a resistive layer on the second encapsulant layer; And
Sealing the electrode insulator composite layer and the resistance layer through an adhesive between a first encapsulation layer having the electrode insulator composite layer formed thereon and a second encapsulation layer having the resistance layer formed thereon;
The method of claim 1,
The method according to claim 10, wherein the step of forming the electrode-
Forming a first electrode portion and a second electrode portion in an electrode insulator region on the first sealing layer; and
And forming a plurality of insulating bars in a second direction so as to electrically isolate the first and second electrode portions and the resistance layer from each other,
The first electrode unit includes a plurality of first branch electrodes formed in a first direction; A first bus bar electrode; And a first finger electrode formed in a second direction to electrically connect the first branch electrode to the first bus bar electrode,
The second electrode portion includes a plurality of second branch electrodes formed in a first direction; A second bus bar electrode; And a second finger electrode formed in a second direction to electrically connect the second branch electrode to the second bus bar electrode.
11. The method of claim 10, wherein the second encapsulation layer is formed with a window such that the first and second bus bar electrodes are electrically connected to the outside.
11. The method of claim 10, wherein the electrode insulator composite layer comprises an air cell.
11. The method of claim 10, further comprising forming an adhesive layer on the second encapsulation layer.
12. The method of claim 11, wherein at least one of the first encapsulation layer, the first electrode portion and the second electrode portion, the insulation bar resistance layer and the second electrode portion is formed by a method of coating, offset printing or screen printing Wherein the first and second end portions are formed by a plurality of projections.

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