TWM503646U - Membrane keypad device - Google Patents

Description

Thin button device

The present invention relates to a thin button device, and more particularly to a film button that provides a button rigidity adjustment structure.

Keys are hand-held electronic devices, such as mobile phones, PDAs, etc., one of the most important input components. Each keycap has a number, a text, an input root and/or a keycap. Various indication patterns, etc., to indicate the operational meaning of the corresponding representative of the button, and to provide a user with easy to recognize and input the correct message, usually a plurality of button arrays constitute a basic operable keyboard (keypad/keyboard), buttons It is a very important input unit for handheld electronic products.

1 is a partial schematic view of a button structure of a conventional handheld electronic device. The button structure shown in FIG. 1 includes a button module 1 and a membrane button 2, and the membrane button 2 is disposed under a button module 1, and the button module 1 is There is a plurality of button bodies 30 and a base portion 40, and the button body 30 is disposed on the base portion 40.

The membrane button 2 has a cover layer 50 and a piece of polyester film 60. The polyester film 60 has a first surface 61, a second surface 62 and an elastic pressure-receiving portion 63. The first surface 61 is oriented toward the button module. In the direction of 1 , the cover layer 50 is formed on the first surface 61 of the polyester film 60, and a plurality of plungers 51 and a plurality of functional portions 52 are integrally extended, and the protrusions 51 are respectively opposite. It should be located on the top end portion of the elastic pressure-receiving portion 63, that is, each of the elastic pressure-receiving portions 63 has a corresponding protrusion 51, and the functional portion 52 is correspondingly distributed around the elastic pressure-receiving portion 63, that is, each elastic The periphery of the pressure-receiving portion 63 corresponds to a plurality of functional portions 52. The metal domes 80 and the protrusions 51 of the cover layer 50 are respectively corresponding to the lower portion of the button body 30 of the button module 1.

The adhesive layer 70 of the membrane button 2 can be attached to the circuit board 90 of the handheld electronic device to position the membrane button 2, and the metal dome 80 corresponds to the dome switch on the circuit board, thereby pressing the button module 1 When the button body 30 is pressed, the protrusion 51 of the film button 2 can be pressed correspondingly, and the elastic pressing portion 63 is pressed downward to make the metal dome 80 pass through the opening of the adhesive layer 70 to be electrically connected to the dome switch.

Although such a conventional design can effectively improve the demodulation of the button module 1 and the membrane button 2 due to component tolerances, process tolerances, and the like, that is, the problem of being inaccurate alignment is not possible. The base 40 of the button module 1 can be easily aligned and pressed against the stud 51 at the top end of the elastic pressure-receiving portion 63, and can also enhance the user's operating feel.

However, the key structure made by the above-mentioned conventional technology has a multi-layer composite structure, and in today's era of handheld electronic devices generally pursuing thinning or even ultra-thinning, the multi-layer structure is bound to lead to an increase in the overall thickness of the button structure, and is set in the The metal shrapnel used as the switching element under the pressing part is a material with a relatively rigid shape, and often has a problem of pressing the hand feeling too hard, so that the user must increase the pressing force to touch the button, which often leads to poor overall hand feeling, and the above-mentioned conventional technology application It is not a problem on buttons that are low-stroke and have a large pressing force. For example, it is applied to a mobile phone button, but if applied to a high-stroke input device with a small pressing force, such as a keyboard (keypad/keyboard), the above-mentioned hand feel is poor. Feelings are significantly magnified, causing serious problems with poor hand feel.

Therefore, with the advancement of technology, how to achieve a good operational feel, reduce the thickness of the overall handheld electronic device, reduce the cost of the product and enhance the application of the function, that is, one of the important topics of relevant researchers and manufacturers, applicants The lack of the use of the technology, after careful experimentation and research, and a perseverance, finally conceived the "thin button device" of this case, can overcome the various shortcomings of the above-mentioned button technology, the following is a brief summary of the creation Description.

In view of the shortcomings of the above-mentioned conventional techniques, in order to conform to the trend of thinning or even thinning of the mobile device, and effectively adjusting the overall hardness and pressing feel of the button, the present invention proposes a film pressing structure capable of improving the pressing feel of the current metal dome, and has The input device of the film pressing structure is very suitable for application on a key input device with high stroke and relatively small pressing force, especially a thin button device, and the structure is not only low in manufacturing cost, but also has high production yield and assembly. Convenience.

The present invention provides a thin button device comprising: a diaphragm comprising a plurality of pressure portions, a plurality of protrusions, and a first surface and a second surface opposite to each other, each of the convex systems being integrally formed in each of the The pressure receiving portion protrudes from the first surface; and a plurality of elastic pieces, each of the elastic pieces correspondingly disposed on a side of each of the pressure receiving portions close to the second surface.

The present invention further provides a thin button device, comprising: a diaphragm comprising a plurality of pressure portions, a plurality of protrusions, an opening, and a first surface and a second surface opposite to each other, each of the convex systems being integrally formed Forming on each of the pressure receiving portions and protruding from the first surface, the opening is formed on one of the pressure receiving portions through the first surface and the second surface; and a plurality of returning elastic pieces, each The corresponding arrangement of the recovery shrapnel is on the side of each of the pressure receiving portions close to the second surface.

The present invention further provides a thin button device, comprising: a first diaphragm comprising a first pressure receiving portion, a convex body and a first surface and a second surface opposite to each other, the convex system being integrally formed Formed on the first pressure receiving portion and protruding from the first surface; a second diaphragm comprising a second pressure receiving portion and a third surface and a fourth surface opposite to each other, the second film The sheet is disposed on a side close to the second surface and the second pressure receiving portion corresponds to the first pressure receiving portion; the plurality of actuating elastic pieces are disposed corresponding to each of the second dynamic pressure receiving portions and the fourth pressure receiving portion is adjacent to the fourth surface And an opening that is selectively disposed on one of the first pressure receiving portion and the second pressure receiving portion and corresponding to the first surface and the second surface and the third surface One of the fourth sides.

1‧‧‧ button module

2‧‧‧film button

30‧‧‧Key body

40‧‧‧ base

50‧‧‧ Coverage

51‧‧‧Bump

52‧‧‧ functional department

60‧‧‧ polyester film

61‧‧‧ first side

62‧‧‧ second side

63‧‧‧Elastic pressure department

70‧‧‧Adhesive layer

80‧‧‧Metal shrapnel

90‧‧‧ boards

1000‧‧‧thin button device

10‧‧‧Key Module

20‧‧‧ Pressure Module

100‧‧‧ button body

200‧‧‧ base

300‧‧‧First diaphragm (diaphragm)

310‧‧‧ first side

320‧‧‧ second side

330‧‧‧First pressure receiving part (pressure part)

430‧‧‧Second pressure department

340‧‧ ‧ convex

350, 450‧‧ ‧ film body

360‧‧‧ openings

400‧‧‧second diaphragm

410‧‧‧ third side

420‧‧‧ fourth side

460‧‧‧ openings

500‧‧‧ shrapnel (recovering shrapnel, actuating shrapnel)

600‧‧ ‧ adhesive layer

610‧‧‧Blank area

700‧‧‧Substrate

Figure 1 is a partial schematic view of a button structure of a conventional handheld electronic device.

Fig. 2 is a schematic exploded view of the first embodiment of the thin key device of the present invention.

Fig. 3a is a cross-sectional view showing a partial structure of the first embodiment of the thin button device of the present invention.

Fig. 3b is a perspective view showing a partial structure of the first embodiment of the thin button device of the present invention.

FIG. 3c is a perspective view showing a partial structure of the pressure module of the first embodiment of the present invention.

Fig. 4a is a cross-sectional view showing a partial structure of a second embodiment of the thin button device of the present invention. Fig. 4b is a perspective view showing a partial structure of a second embodiment of the thin button device of the present invention.

FIG. 4c is a perspective view showing a partial structure of the pressure-receiving module in the second embodiment of the present invention.

Fig. 5a is a cross-sectional view showing a partial structure of a third embodiment of the thin button device of the present invention.

Fig. 5b is a perspective view showing a partial structure of a third embodiment of the thin button device of the present invention.

FIG. 5c is a perspective view showing a partial structure of the pressure-receiving module in the third embodiment of the present invention.

Fig. 6a is a schematic view showing the structure of the radial multi-shaped circular opening of the present invention.

Figure 6b shows a schematic diagram of the structure of the quadruple triangular opening of the present creation.

Figure 6c shows a schematic view of the structure of the slit opening of the present invention.

The present invention will be fully understood by the following examples, so that those skilled in the art can do so, but the implementation of the present invention may not be restricted by the following implementation cases; the pattern of the creation is The size, size and scale are not included. The size, size and scale of the original implementation of this creation are not limited by the schema of the creation.

The term "preferred" as used herein is non-exclusive and should be understood as "preferably, but not limited to", and any steps described or recited in any specification or claim can be performed in any order, and are not limited to the claim The order of the present invention should be determined only by the accompanying claims and its equal schemes, and should not be determined by the examples of the embodiments; the term "comprising" and its variations appear in the specification and claims. An open language, not restrictive Other features or steps are not excluded; the thin button device described herein is also referred to as a membrane button.

FIG. 2 is a schematic exploded view of the first embodiment of the thin button device of the present invention. The first embodiment of the thin button device 1000 includes a button module 10 and a pressure module 20, and the button module 10 The base unit 200 includes a plurality of button bodies 100 disposed on the base portion 200. The pressure receiving module 20 includes a first diaphragm (diaphragm) 300 and a plurality of elastic pieces (recovery elastic pieces, actuating elastic pieces) 500.

The first diaphragm 300 is preferably a composite film sheet having a first surface 310 and a second surface 320 opposite to each other. The first surface 310 is oriented toward the top surface of the button module 10, and the second surface 320 is The bottom surface of the first diaphragm 300 is formed by a plurality of elastic first pressure receiving portions (pressure receiving portions) 330 having a circular shape from a direction of the film body 350 toward the first surface 310, and a plurality of elastic first pressure receiving portions. 330 is arranged on the first diaphragm 300 to form an array, and a plurality of protrusions 340 are integrally formed and protruded from each of the elastic first pressure receiving portions 330, and the plurality of protrusions 340 are facing the first surface. The direction of the protrusion 310 is formed, and the convex body 340 is disposed at a position corresponding to or near the tip end portion of the elastic first pressure receiving portion 330, that is, each elastic first pressure receiving portion on the first diaphragm 300. A convex body 340 is formed correspondingly above the apex of 330.

The plurality of elastic pieces 500 are preferably made of a conductive material made of a metal material, but are not limited to a metal material, and may be an elastic member made of a conductive material, a non-metal material, a dielectric material, a combination thereof, or the like. A piece of elastic piece 500 is respectively disposed under the second surface 320 corresponding to the elastic first pressure receiving portion 330 of the first diaphragm 300, and the shape thereof is substantially the same as the shape of the first pressure receiving portion 330, and the size is close. The difference is only in the difference in scale.

Please refer to Figure 3a to Figure 3c together. Figure 3a shows the creation of the thin button FIG. 3b is a schematic cross-sectional view showing a partial structure of the first embodiment of the present invention, and FIG. 3c is a perspective view showing the first embodiment of the present invention. A schematic perspective view of a partial structure of a module. The first embodiment of the thin button device 1000 includes a button module 10 and a pressure module 20, the button module 10 includes a base 200, and a button body 100 disposed on the base 200. The pressure module 20 includes the first The diaphragm 300 and the elastic piece 500.

The first diaphragm 300 includes a first surface 310, a second surface 320, a first pressure receiving portion 330, a convex body 340, and a film body 350. The first surface 310 is oriented on the first diaphragm 300 toward the button module 10. The surface, so the so-called first surface 310 covers the surface of the portion of the convex body 340, the surface of the portion of the first pressure receiving portion 330, and a portion of the surface of the film body 350; the first film 300 is mainly made of single or multiple Film material, through integral molding process technology, such as: hot press forming process, co-molding process, molding based process, liquid injection molding system (LIMS), The gluing process, the ultrasonic welding process, the hot-melt process, and a combination thereof are collectively fabricated into a composite film piece including a flat film body 350, a first pressure receiving portion 330 and a convex body 340, and a first film. The material contained in 300 is selected from, for example, polyester, polycarbonate (PC), polyethylene terephthalate (PET), polypropylene (polypropylene, PP), enamel rubber, thermoplastic polyurethane (thermop) One of lastic polyurethane, TPU), resin and combinations thereof.

The diaphragm body is preferably a flat film, and the first pressure receiving portion 330 preferably has a first shape, and the first shape is selected from one of a dome shape and a dome shape, and the first pressure receiving portion 330 is The film body 350 is integrally formed and protrudes from the first surface 310 of the film body 350. The convex body 340 is formed integrally with the film body 350 and the first pressure receiving portion 330, and is located at the same position. Near the apex position of the first pressure receiving portion 330 and protruding from the first surface 310 of the first pressure receiving portion 330. When the first diaphragm 300 is disposed, the first surface 310 is configured to face the button module 10 The direction is such that the center point of the convex body 340 of the first pressure receiving portion 330 is aligned with the center point of the button body 100 as much as possible, so that when the user presses the button body 100, the base portion 200 of the driving button module 10 is brought into contact with the pressed mold. The convex body 340 of the group 20 activates the function corresponding to the button.

The plurality of elastic pieces 500 are preferably made of a metal material, a conductive material, a non-metal material, a dielectric material, and a combination thereof, and are mainly used as a component for providing a restoring force or an actuation force to resist the user's operation or pressing the button body. At 100 o'clock, each of the elastic pieces 500 preferably has a shape of a spring. The shape of the elastic piece is selected from one of a dome shape and a dome shape, and the shape and size of the first pressure receiving portion 330 of the first diaphragm 300 The choice of the other is mainly to maintain substantially the same shape as the shape of the elastic piece 500, or the two are substantially conformal, and the size is close, the difference is only in the difference in proportion, so each piece of the elastic piece 500 can be good. Disposed under the recessed space corresponding to the elastic first pressure receiving portion 330 of the first diaphragm 300 on the second surface 320, each of the elastic sheets 500 is oriented in the first direction when the elastic sheet 500 is disposed in the recessed space. The second surface 320 of the first pressure receiving portion 330 corresponding to the diaphragm 300 is disposed such that the center point of the elastic piece 500 is aligned with the center point of the first pressure receiving portion 330 of the first diaphragm 300 as much as possible.

The thin button device 1000 of the present invention further includes an adhesive layer 600 interposed between the second surface 320 of the first film 300 and the substrate 700 to enable the first film 300 to be disposed on the substrate disposed on the lower layer. In combination with the 700, the adhesive layer 600 will retain a plurality of non-adhesive blank areas 610 at each of the elastic first pressure receiving portions 330.

The structure of the first embodiment of the present invention is simpler than the conventional technique. In the first embodiment, only a single diaphragm (i.e., the first diaphragm 300) is used as the dielectric layer and the overlay of the elastic layer (i.e., the elastic sheet 500). The cover layer is different from the conventional technology in that multiple diaphragms are used. This embodiment can effectively reduce the thickness of the button device, make the overall structure of the button device lighter and thinner, and at the same time, effectively reduce the overall diaphragm assembly due to the simplified number of the diaphragm. The structural rigidity reduces the resistance force provided by the pressure-receiving module 20 to the button film group 10, and greatly improves the button feel, and is very suitable for application to a key input device having a high stroke and a relatively small pressing force (micro-pressure).

Please refer to FIG. 4a to FIG. 4c together. FIG. 4a is a partial cross-sectional view showing a second embodiment of the thin button device of the present invention, and FIG. 4b is a partial structural cross-sectional view showing the second embodiment of the thin button device. FIG. 4c is a perspective view showing a partial structure of a pressure-receiving module in a second embodiment of the present invention. The second embodiment of the present thin-type button device 1000 includes all the technical features disclosed in the first embodiment, the difference being that in order to further weaken the structural rigidity of the overall diaphragm assembly and to adjust the restoring force provided by the diaphragm, The first pressure receiving portion 330 of the first diaphragm 300 further includes at least one opening 360, and the opening 360 is configured to penetrate the first surface 310 and the second surface 320 of the first pressure receiving portion 330.

It should be noted that the number and form of the openings 360 opened by the first pressure receiving portion 330 of the first diaphragm 300 are not limited to a single one, and may be symmetric or asymmetric, as shown in FIGS. 4b and 4c. It can be opened as a symmetrical double opening, or a radial multiple circular opening as shown in Fig. 6a, a quadruple triangular opening as shown in Fig. 6b, a slit as shown in Fig. 6c Types of openings, etc., different types of openings can be used to effectively adjust the structural rigidity of the diaphragm, or the restoring force provided.

Please refer to FIG. 5a to FIG. 5c together. FIG. 5a is a partial cross-sectional view showing a third embodiment of the thin button device of the present invention, and FIG. 5b is a partial structural cross-sectional view showing a third embodiment of the thin button device of the present invention. Stereoscopic diagram, Figure 5c reveals the creation of the thin button A perspective view of a partial structure of a pressurized module in the third embodiment is shown. The third embodiment of the present thin-type button device 1000 includes all of the technical features disclosed in the first embodiment and the second embodiment, except that the third embodiment further includes a second film 400. The second diaphragm 400 is substantially identical in form and structure to the first diaphragm 300 and includes all of the features of the first diaphragm 300, but the second diaphragm 400 does not form a protrusion on its second pressure receiving portion 430, A boss or similar protruding structure.

The second diaphragm 400 includes a third surface 410, a fourth surface 420, a second pressure receiving portion 430, and a film body 450. The third surface 410 of the second diaphragm 400 is oriented toward the first surface of the second diaphragm 400. The surface of the diaphragm 300, so the so-called third surface 410 covers the surface of the portion of the second pressure receiving portion 430 and a portion of the surface of the film body 450. The diaphragm body is preferably a flat film, and the second pressure receiving portion 430 preferably has a surface. a second shape, the second shape is selected from one of a dome shape and a dome shape, and the second pressure receiving portion 430 is integrally formed and protrudes from the third surface 410 of the film body 450. The shape, size, and the like of the second pressure receiving portion 430 of the second diaphragm 400 are mainly selected to conform to the shape of the first pressure receiving portion 330 or the elastic piece 500 of the first diaphragm 300, and the second pressure receiving portion 430 of the second diaphragm 400 It is substantially the same as the first pressure receiving portion 330 of the first diaphragm 300 and the outer shape of the elastic piece, or substantially conformal, and the size is close, the difference is only in the difference in proportion, so the second film The sheet 400 can be well configured to correspond to the second side 320 of the first diaphragm 300 and pass through the second The second pressure receiving portion 430 of the sheet 400 is aligned with the first pressure receiving portion 330 of the first diaphragm 300, and is in good coincidence with the first diaphragm 300. When the second diaphragm 400 is disposed, the third surface 410 is The first diaphragm 300 is disposed in the direction of the second surface 320 of the first diaphragm 300, and the center point of each of the second pressure receiving portions 430 of the second diaphragm 400 is aligned with each of the first pressure receiving portions 330 of the first diaphragm 300. The center point, when the user presses the button body 100, the base 200 of the button module 10 is brought into contact with the first of the pressurized module 20 The convex portion 340 of the diaphragm 300 further drives the second pressure receiving portion 430 of the second diaphragm 400 to activate the function corresponding to the button.

The second pressure receiving portion 430 of the second diaphragm 400 is further provided with at least one opening 460. The opening 460 is configured to penetrate the third surface 410 and the fourth surface 420 of the second pressure receiving portion 430. The number and form of the openings 460 are not It is limited to a single one, and may be symmetrical or asymmetrical in form. As shown in FIG. 5b and FIG. 5c, it may be a symmetric double opening, or a radial multiple circular opening as shown in FIG. 6a. A four-fold triangular opening as shown in Fig. 6b, a slit opening as shown in Fig. 6c, and the like.

It is to be noted that, in the third embodiment, the opening (360, 460) is selectively disposed in one of the first pressure receiving portion 330 of the first diaphragm 300 and the second pressure receiving portion 430 of the second diaphragm 400. Up, that is, the opening 360 may be provided on the first pressure receiving portion 330 of the first diaphragm 300 alone, or the opening 460 may be provided on the second pressure receiving portion 430 of the second diaphragm 400 alone, or may be first An opening 360 and an opening 460 are provided on both the first pressure receiving portion 330 of the diaphragm 300 and the second pressure receiving portion 430 of the second diaphragm 400.

Through the key structure disclosed in the first embodiment to the third embodiment of the present invention, the thickness of the button device can be effectively reduced, the overall structure of the button device can be made thinner, and the overall structural rigidity, resistance force, and overall feel of the button are also It provides an effective adjustment structure, greatly improving the feel of the button, and is very suitable for application on a key input device having a high stroke and a relatively small pressing force (micro pressure).

The above embodiments can be combined or replaced with each other arbitrarily, thereby deriving more implementations, but without departing from the scope of the creation of the present invention, further provide more creative implementations such as:

Embodiment 1 A thin key device comprising: a diaphragm comprising a plurality of pressure receiving portions, a plurality of convex bodies, and a first surface and a second surface opposite to each other, wherein each convex system is integrally formed in each a pressure receiving portion protrudes from the first surface; and a plurality of elastic pieces, each of the elastic pieces correspondingly disposed on a side of each of the pressure receiving portions close to the second surface.

Embodiment 2: The thin button device of Embodiment 1, further comprising: an opening extending through the first surface and the second surface on one of the pressure receiving portions.

Embodiment 3: The thin button device of Embodiment 1, wherein the pressure receiving portion is configured to have a first shape selected from one of a dome shape and a dome shape.

Embodiment 4: The thin button device of Embodiment 1, wherein the elastic piece is configured to have a shape of a spring, the shape of the elastic piece being selected from one of a dome shape and a dome shape.

Embodiment 5: The thin button device of Embodiment 3 or 4, wherein the first shape is substantially the same as the shape of the shrapnel.

Embodiment 6: The thin button device of Embodiment 1, wherein the film comprises a material selected from the group consisting of a polyester, a polycarbonate (PC), and a polyethylene terephthalate ( PET), a polypropylene (PP), a rubber, a thermoplastic polyurethane (TPU), a resin, and a combination thereof.

The thin button device of the first embodiment, wherein the material contained in the elastic piece is selected from the group consisting of a metal material, a conductive material, a non-metal material, a dielectric material, and a combination thereof.

Embodiment 8: A thin key device comprising: a diaphragm comprising a plurality of pressure portions, a plurality of protrusions, an opening, and a first surface and a second surface opposite to each other, each Forming a convex system integrally formed on each of the pressure receiving portions and protruding from the first surface, the opening extending through the first surface and the second surface on one of the pressure receiving portions; The plurality of returning elastic pieces are respectively disposed corresponding to each of the pressure receiving portions on the side close to the second surface.

Embodiment 9: A thin button device comprising: a first diaphragm comprising a first pressure receiving portion, a protrusion and a first surface and a second surface opposite to each other, the convex system being integrally formed Formed on the first pressure receiving portion and protruding from the first surface; a second diaphragm comprising a second pressure receiving portion and a third surface and a fourth surface opposite to each other, the second film The sheet is disposed on a side close to the second surface and the second pressure receiving portion corresponds to the first pressure receiving portion; the plurality of actuating elastic pieces are disposed corresponding to each of the second dynamic pressure receiving portions and the fourth pressure receiving portion is adjacent to the fourth surface And an opening that is selectively disposed on one of the first pressure receiving portion and the second pressure receiving portion and corresponding to the first surface and the second surface and the third surface One of the fourth sides.

The thin button device of embodiment 9, wherein the first pressure receiving portion is configured to have a first shape, and the second pressure receiving portion is configured to have a second shape, the elastic piece The shape has a shape of a dome, and the first shape, the first shape is substantially the same as the shape of the elastic piece, and is selected from one of a dome shape and a dome shape.

The embodiments of the present invention can be arbitrarily combined or replaced with each other, thereby deriving more implementations, but the scope of the protection of the present invention is not limited by the scope of the creative protection. The record is subject to change.

1000‧‧‧thin button device

10‧‧‧Key Module

20‧‧‧ Pressure Module

100‧‧‧ button body

200‧‧‧ base

300‧‧‧First diaphragm (diaphragm)

310‧‧‧ first side

320‧‧‧ second side

330‧‧‧First pressure receiving part (pressure part)

340‧‧ ‧ convex

350‧‧ ‧ film body

360‧‧‧ openings

500‧‧‧ shrapnel (recovering shrapnel, actuating shrapnel)

Claims (10)

A thin button device comprising: a diaphragm comprising a plurality of pressure receiving portions, a plurality of convex bodies and a first surface and a second surface opposite to each other, wherein each convex system is integrally formed in each of the pressure receiving portions And protruding from the first surface; and a plurality of elastic pieces, each of the elastic pieces correspondingly disposed on a side of each of the pressure receiving portions close to the second surface. The thin button device of claim 1, further comprising: an opening extending through the first surface and the second surface on one of the pressure receiving portions. The thin button device of claim 1, wherein the pressure receiving portion is configured to have a first shape selected from one of a dome shape and a dome shape. The thin button device of claim 1, wherein the elastic piece is configured to have a shape of a spring, and the shape of the elastic piece is selected from one of a dome shape and a dome shape. The thin button device of claim 3, wherein the first shape is substantially the same as the shape of the shrapnel. The thin button device of claim 1, wherein the film comprises a material selected from the group consisting of a polyester, a polycarbonate (PC), and a polyethylene terephthalate (PET). One of polypropylene (PP), monoterpene rubber, thermoplastic polyurethane (TPU), a resin, and combinations thereof. The thin button device of claim 1, wherein the material contained in the elastic piece is selected from the group consisting of a metal material, a conductive material, a non-metal, a dielectric material, and a combination thereof. A thin button device comprising: a diaphragm comprising a plurality of pressure portions, a plurality of protrusions, an opening, and a first surface and a second surface opposite to each other, each of the convex systems being integrally formed in each The pressure receiving portion protrudes from the first surface, and the opening is formed on one of the pressure receiving portions through the first surface and the second surface; and a plurality of returning elastic pieces, each corresponding to the elastic piece It is disposed on the side of each of the pressure receiving portions close to the second surface. A thin button device comprising: a first diaphragm comprising a first pressure receiving portion, a convex body and a first surface and a second surface opposite to each other, wherein the convex system is integrally formed on the first surface a pressure receiving portion and protruding from the first surface; a second diaphragm comprising a second pressure receiving portion and a third surface and a fourth surface opposite to each other, the second diaphragm being disposed close to a side of the second surface and the second pressure receiving portion corresponding to the first pressure receiving portion; a plurality of actuating elastic pieces, each corresponding to the elastic piece corresponding to the side of the second pressure receiving portion close to the fourth surface; An opening disposed selectively on one of the first pressure receiving portion and the second pressure receiving portion, and correspondingly extending through the first surface and the second surface, and the third surface and the fourth surface A group. The thin button device of claim 9, wherein the first pressure receiving portion is configured to have a first shape, the second pressure receiving portion is configured to have a second shape, and the elastic piece is configured to have a shape of a spring, the first shape, the first shape and the shape of the elastic piece are substantially the same, It is selected from one of a dome shape and a dome shape.