TW201504906A - Touch-control type protective device - Google Patents

Abstract

A touch-control type protective device includes a case body. The case body includes an accommodating cavity. A connector is disposed in the accommodating cavity to be coupled with a connecting hole in the mobile device. A capacitive touch sensing module is disposed in the back surface or the side surface of the case body. The capacitive touch sensing module includes a soft shielding layer, a one dimensional sensor layer, a soft intermediate layer and a capacitance sensing circuit. The soft shielding layer includes a ground plane and a dielectric material covering the ground plane. A plurality of touch-control areas are disposed on the outer surface of the soft shielding layer. The one dimensional sensor layer includes a plurality of sensing cells corresponding to the plurality of touch-control areas. The soft intermediate layer is interposed between the ground plane and the one dimensional sensor layer, so as to form a capacitor structure. The capacitance sensing circuit is electrically connected to the plurality of sensing cells to probe a capacitance change and is electrically coupled to the connector.

Description

Touch protection device

The present invention relates to a mobile device protective case, and in particular to a touch protection device.

Due to the rapid development of electronic and computer technology, consumer electronics products are becoming faster and faster. In order to achieve better portability and more convenient operation, touch-operated interface has become the mainstream of handheld mobile devices. design. This handheld mobile device with integrated touch interface, powerful computing power, large storage capacity and dedicated operating system has a slim profile and powerful data and multimedia processing capabilities. Different from previous handheld mobile devices, generally referred to as tablet mobile devices, typical representatives of this new generation of tablet mobile devices include: tablet computers, smart phones and multimedia playback. Multi-media player. Flat-panel mobile devices usually have multimedia (film, photo and music) playback capabilities, photography, browsing network and document editing functions. Compared with traditional personal digital assistants (PDAs), they are more like a small portable device. Personal computers, so the price of today's mainstream flat-panel mobile devices has also reached a new high in history, and its price is almost the same as that of notebook computers, but the size is more refined and compact. In order to avoid damage caused by accidental dropping or collision of flat-panel electronic products, many protective covers or protective covers that can provide protection functions such as anti-collision or scratch-proof have also emerged.

It is known that the protective cover for flat-panel electronic products mainly provides protection functions such as anti-collision or anti-scratch, so as to prevent the flat-type mobile device from being damaged due to falling or collision, especially the touch-type smart phone. Limited to the compact size and the consumer's demand for light and portable use, the protective cover for touch-sensitive smart phones is also thin and compact, in order to increase the size of this compact tablet mobile device. Other practical features, while at the same time making it easy to keep the protective sleeve in size. Relatively speaking, the size of the tablet is larger than that of the general touch smart phone, so the protective cover or the protective case for the tablet will be larger, based on the consumer viewing the tablet. In the case of media content, the tablet is often used at an oblique angle. The protective case or protective case for the tablet usually provides additional functions, such as protection on the tablet, in addition to basic protection. The support or the protective cover is provided with support members for supporting the tablet at an inclined angle suitable for viewing or operation, but these support members usually have a relatively complicated structure, and are even attached to the tablet in an attached manner. The protective cover or the protective case further increases the volume. In addition, if such a protective cover or protective case is covered, when there is an incoming call, the cover of the protective cover or the protective cover must be opened to answer the call, and the opened cover may also affect the user's hand movement. The comfort of the device, which often causes inconvenience to the user.

Based on the above disadvantages of the conventional protective case or protective cover, the present invention provides a brand new touch protection device.

In one aspect, the present invention provides a touch protection device including a cover body and a housing. The cover body comprises an outer surface and an inner surface, and the housing is connected to the edge of the cover body, the housing comprises a receiving groove, a back surface and a side surface, the receiving groove is for receiving the mobile device, and the connecting groove is arranged in the receiving groove. A connecting hole for coupling the mobile device. A capacitive touch sensing module is embedded in the outer surface or the inner surface, and the capacitive touch sensing module comprises a soft shielding layer, a one-dimensional sensor layer, a soft interposer and a capacitance sensing circuit. The soft shielding layer comprises a ground plane and a dielectric material, the dielectric material covers the ground plane, and the outer surface of the soft shielding layer further comprises a plurality of touch regions. The one-dimensional sensor layer includes a plurality of sensing units, and the plurality of sensing units correspond to a plurality of touch areas. The soft interposer is sandwiched between the ground plane of the soft mask layer and the one-dimensional sensor layer to form a capacitor structure. The capacitive sensing circuit is electrically connected to the plurality of sensing units to sense the change of the capacitance, and the capacitive sensing circuit is electrically coupled to the connecting head.

In another aspect, the present invention provides a touch protection device including a housing. The housing comprises a receiving groove, a back surface and a side surface, and the receiving groove is for receiving the mobile device. A connecting head is disposed in the receiving groove for coupling the connecting hole of the mobile device. A capacitive touch sensing module is embedded in the back surface or the side surface. The capacitive touch sensing module includes a soft shielding layer, a one-dimensional sensor layer, a soft interposer, and a capacitance sensing circuit. The soft shielding layer comprises a ground plane and a dielectric material, and the dielectric material covers the ground plane. The soft mask layer further includes a plurality of touch regions on the surface. The one-dimensional sensor layer includes a plurality of sensing units, and the plurality of sensing units correspond to a plurality of touch areas. The soft interposer is sandwiched between the ground plane of the soft mask layer and the one-dimensional sensor layer to form a capacitor structure. capacitance The sensing circuit is electrically connected to the plurality of sensing units to sense a change in capacitance, and the capacitive sensing circuit is electrically coupled to the connector.

One advantage of the present invention is that the user can manipulate the mobile device contained in the touch protection device by clicking, touching or sliding on the inner or outer surface of the cover of the touch protection device.

Another advantage of the present invention is that the user can manipulate the mobile device contained in the touch protection device by clicking, touching or sliding on the back surface or the side surface of the housing of the touch protection device.

Another advantage of the present invention is that the capacitive touch sensing module of the touch protection device can provide a single unit with the most trigger detection combination, thereby improving signal resolution and touch sensitivity.

These and other advantages are apparent from the following description of the preferred embodiments of the invention and the appended claims.

10‧‧‧Touch protection device

101‧‧‧shell

1011‧‧‧ receiving groove

1012‧‧‧Back surface

1013‧‧‧ side surface

1014‧‧‧Connector

1015‧‧‧ hole

1016‧‧‧上上

1017‧‧‧下下

102‧‧‧ cover

1021‧‧‧ inner surface

1022‧‧‧ outer surface

103‧‧‧Rotary axis

21‧‧‧Soft shielding layer

22‧‧‧Soft Intermediary

23‧‧‧1D sensor layer

24‧‧‧Capacitive sensing circuit

25‧‧‧Soft circuit board

211‧‧‧ Ground plane

212‧‧‧ dielectric materials

213‧‧‧ Touch area

231a~231g‧‧‧Sensor unit

31‧‧‧Soft shielding layer

311‧‧‧ Ground plane

312‧‧‧ dielectric materials

314‧‧‧ openings

32‧‧‧Soft Intermediary

33‧‧‧1D sensor layer

331‧‧‧Sensor unit

34‧‧‧Capacitive sensing circuit

40‧‧‧Capacitive sensing circuit

401‧‧‧shading layer

41‧‧‧1D sensor layer

42‧‧‧ housing trough

43‧‧‧Lighting diode array

46‧‧‧Sensor unit

47‧‧‧Lighting diode unit

The above elements, as well as other features and advantages of the present invention, will be more apparent by reading the contents of the embodiments and the drawings thereof. The first figure shows a schematic diagram of a touch protection device according to an embodiment of the present invention.

The second figure is a schematic diagram showing a touch protection device according to an embodiment of the invention.

The third figure shows a schematic structural view of a capacitive touch sensing module in a touch protection device according to a preferred embodiment of the present invention.

FIG. 4A is a schematic diagram showing a structural cross section of a capacitive touch sensing module when it is not in operation and a capacitance in a corresponding circuit according to an embodiment of the invention.

FIG. 4B is a schematic diagram showing a structural cross section of a capacitive touch sensing module during a pressing operation and a capacitance in a corresponding circuit according to an embodiment of the invention.

The fifth figure is a schematic diagram showing the arrangement of the sensing units in one of the sensor layers of the capacitive touch sensing module according to an embodiment of the invention.

FIG. 6 is a schematic structural view showing a capacitive touch sensing module in a touch protection device according to a preferred embodiment of the present invention.

Figure 7 is a schematic view showing the arrangement of the sensing unit and the opening in the sixth figure according to a preferred embodiment of the present invention.

FIG. 8 is a schematic diagram showing a structural cross section of a capacitive touch sensing module during a light touch operation and a capacitance in a corresponding circuit according to an embodiment of the invention.

The ninth figure is a schematic diagram showing the change of the capacitance value correspondingly generated when the finger performs different operations on the capacitive touch sensing module according to an embodiment of the invention.

FIG. 10 is a partial cross-sectional view showing a capacitive touch sensing module in a touch protection device according to a preferred embodiment of the present invention.

11 is a schematic diagram showing a capacitive touch sensing module in a touch protection device according to a preferred embodiment of the present invention.

The invention is described in detail herein with reference to the particular embodiments of the invention, and the description of the invention. Therefore, the present invention may be widely practiced in other different embodiments in addition to the specific embodiments and preferred embodiments of the specification.

Referring to the first and second figures, in one embodiment of the present invention, a touch protection device 10 is disclosed. As shown in the first and second figures, in one embodiment, the touch protection device 10 includes a housing 101 and a cover 102. In another embodiment, the touch protection device 10 may only include the housing 101 without including a cover. The housing 101 is attached to a longer edge of one of the covers 102. In one embodiment, as shown in the first and second figures, the housing 101 and the cover 102 are connectable via a rotating shaft 103. The connection mode is for illustrative purposes only, and is not intended to limit the present invention. Therefore, the housing 101 and the cover body 102 can also be connected by any other means. For example, the housing 101 and the cover body 102 are integrally formed, and the housing 101 and the housing 101 are The cover bodies 102 are adhered to each other. The housing 101 includes a receiving recess 1011 for receiving a mobile device such as a smart phone, a tablet computer, a personal digital assistant, and a navigation machine. As shown in the first figure, the housing 101 includes a back surface 1012 and a side surface 1013. The side surface 1013 is provided with a plurality of holes 1015 for exposing an operation button or a headphone jack of the mobile device for the user to operate the mobile device or insert the earphone connector. The housing 101 further includes a connector 1014 disposed on the inner surface of the receiving recess 1011 for coupling the connecting hole of the mobile device to transmit the command signal. In an embodiment, the housing 101 can be a combined structure, for example, can be decomposed into an upper portion 1016 and a lower portion. 1017, the upper portion 1016 and the lower portion 1017 can be combined or electrically coupled through the engaging groove or the electrical terminal, and the mobile device can be inserted into the lower portion 1017 from the separated rear opening, and then the upper portion 1016 is joined. Going back, the assembly between the mobile device and the touch protection device 10 can be completed. As shown in the first and second figures, the cover 102 includes an inner surface 1021 and an outer surface 1022.

In one embodiment, a capacitive touch sensing module (described in detail below) may be embedded in the entire outer surface 1022 of the cover 102. The capacitive touch sensing module may be electrically coupled to the connector 1014. In turn, the command signal is transmitted to the mobile device. In another embodiment, a capacitive touch sensing module (described in detail below) may be embedded in the entire inner surface 1021 of the cover 102. The capacitive touch sensing module may be electrically coupled to the connector 1014. And then transmit the command signal to the mobile device. In another embodiment, a capacitive touch sensing module (described in detail below) may be embedded in the entire back surface 1012 of the housing 101. The capacitive touch sensing module may be electrically coupled to the connector. 1014, and further transmits the command signal to the mobile device. In another embodiment, a capacitive touch sensing module (described in detail below) may be embedded in the entire side surface 1013 of the housing 101. The capacitive touch sensing module may be electrically coupled to the connector. 1014, and further transmits the command signal to the mobile device. Thereby, the user can touch, click or slide over the surface of the entire outer surface 1022 or the integral inner surface 1021 of the cover 102 or the entire back surface 1012 or the integral side surface 1013 of the housing 101. Control the operation of the mobile device. For example, the user can touch, click or slide over the surface of the overall outer surface 1022 or the integral inner surface 1021 of the cover 102 or the entire back surface 1012 or the integral side surface 1013 of the housing 101. Various application software in mobile devices (such as electronic pet application software, call module or network phone module, home appliance remote control application software, car remote control application software, game application software, document application software, instant messaging software or click communication application) Software, etc.) and/or hardware (such as infrared modules, Bluetooth modules or wireless RF modules, etc.) for touching electronic pets, making or receiving general mobile phones or VoIP, remote control appliances, remote car audio or Door locks, video games, text or symbols, instant online communication, or communication with different click or swipe actions of different types of Moss passwords. The application software and hardware are merely examples and are not intended to limit the present invention. Therefore, the present invention can also utilize the touch protection device of the present invention in conjunction with any other kind of application software or hardware for the operation of the mobile device.

FIG. 3 is a schematic structural diagram of a capacitive touch sensing module in a touch protection device according to a first preferred embodiment of the present invention. This example shows that a capacitive touch sensing module mainly includes a soft shielding layer 21, a soft interposer 22, and a one-dimensional sensor layer 23, which are stacked from top to bottom. Stack.

The flexible shielding layer 21 includes a conductive ground plane 211 and a dielectric material 212, wherein the dielectric material 212 covers the ground plane 211. The soft masking layer 21 has a plurality of touch areas 213 on its outer surface, which represent touchable positions. The entire soft shielding layer 21 must be temporarily deformed in response to the user's pressing force and can be restored to its original state when the force is released. The ground plane 211 may use a metal material such as a copper plate, and the dielectric material 212 may use a PMMA (Polymethyl Methacrylate) film, a PET (Polyethylene terephthalate) film or a rubber.

In an embodiment, the ground plane 211 of the soft shielding layer 21 can be, for example, copper, silver paste, Indium Tin Oxide (ITO), Antimony Tin Oxide (ATO), Indium Zinc (Indium-Zinc). Oxide, IZO), zinc oxide (ZnO) or equivalents thereof, and any combination thereof.

The body of the one-dimensional sensor layer 23 is a single layer printed circuit board (PCB) construction. In the case of component winding, the printed circuit board itself is typically two layers. The term "single layer" as used herein is used in particular to distinguish two layers of ITO plates (as row and column electrodes, respectively) used in conventional sensor layer structures. In this example, the one-dimensional sensor layer 23 includes a plurality of regular hexagonal sensing units, such as the plurality of sensing units 231a-231g shown in the fifth figure, such that all of the sensing units collectively discharge a honeycomb pattern. Each of the sensing units is aligned with the corresponding touch area 213 of the flexible shielding layer 21, and is electrically connected to a capacitance sensing circuit 24 through respective wires. The plurality of wires can be integrated into the connection to the capacitive sense. The circuit 24 is on one of the flexible circuit boards 25. The capacitive sensing circuit 24 can be electrically coupled to the connector 1014.

The soft interposer 22 is interposed between the ground plane 211 of the soft shielding layer 21 and the one-dimensional sensor layer 23 as a layer of separation material between the ground plane 211 of the soft shielding layer 21 and the one-dimensional sensor layer 23, The stacked structure of the ground plane-interposer-sensing unit is configured to form a capacitor structure. In this example, the soft interposer 22 can be made of Optical Clear Resin (OCR) or Optical Clear Adhesive (OCA), which has the advantage of providing a uniform spacing between the two plates of the capacitor structure. To maintain the same characteristics of the entire capacitive touch sensing module. In addition, the soft interposer 22 also exerts a buffering effect upon pressing, which enhances the feeling of pressing felt by the user during pressing.

Referring to the fourth A picture and the fourth B picture, respectively, the capacitive touch sensing module is not operated Schematic diagram of the structure profile and the capacitance in the corresponding circuit during the pressing operation. When the capacitive touch sensing module is not operated, the distance between the ground plane 211 and the one-dimensional sensor layer 23 is assumed to be D1, and the capacitance signal obtained by the sensing circuit 24 is as shown in FIG. 4A, with C_Plates_D1. Said. When the user presses on any of the touch regions 213 of the soft shielding layer 21, since both the soft shielding layer 21 and the soft interposer 22 are deformed as shown in FIG. 4B, the ground plane 211 and the one-dimensional sensor layer 23 are formed. The distance between one of the sensing units (for example, 231a or 231g, etc.) is changed from D1 to D2 (D2 is less than D1), and the capacitance signal corresponding to the sensing unit obtained by the sensing circuit 24 is represented by C_Plates_D2.

Therefore, the capacitive touch sensing module in the touch protection device of the present invention can provide a pressing touch and a better operational certainty to the user.

6 is a schematic structural diagram of a capacitive touch sensing module in a touch protection device according to a second preferred embodiment of the present invention, and the seventh figure shows the sensing unit and the opening in the sixth figure. Hole configuration. The capacitive touch sensing module of the present embodiment also has a soft shielding layer 31, a soft interposer 32, and a one-dimensional sensor layer 33, and the features are substantially the same as those of the first embodiment, and therefore will not be described again. The difference between the present embodiment and the first embodiment is that the flexible shielding layer 31 is provided with a plurality of openings 314. Each of the openings 314 extends through the ground plane 311 and the dielectric material 312 or only through the ground plane 311 to form a soft interposer. 32 is not obscured by the ground plane 311. The openings 314 are the sensing units 331 corresponding to the one-dimensional sensor layer 33. It is clearly shown from the top view of the seventh figure that each of the openings 314 is located within the contour range of the corresponding sensing unit 331.

Since there is no ground plane at the place where the opening is provided, a finger capacitance is generated when the user's finger is only gently touched (not pressed), as indicated by C_Finger in the eighth figure, the sensing circuit The sensed capacitance signal of 34 includes C_Plates_D1 and C_Finger. Therefore, the sensing circuit can recognize the position of the finger and track its movement, that is, the arrangement of the openings 314 can provide the user with the function of gesture operation as long as the relevant control circuit is pre-defined.

The honeycomb pattern formed by the sensing unit is particularly advantageous when used in a capacitive touch sensing module that provides a gesture operation function, which not only can arrange the sensing units more densely without wasting area, but also provides a single unit at most. The trigger detection combination (63 in a single unit and more in a unit group) makes the signal resolution better. The one-dimensional sensor layer specifically includes a substrate and a sensing unit. The substrate may be a printed circuit board, a film or a glass sheet, and the sensing unit may be transparent and may be fabricated on the substrate. The sensing unit may be formed by a regular hexagonal shape, and the patterns of the overall sensing unit are arranged to form a honeycomb shape. Set. As shown in the fifth figure, a plurality of individual regular hexagons are arranged in seven regular hexagons to form one unit. A regular hexagon is surrounded by six adjacent regular hexagons. The central sensing unit can indicate an output signal when touched, and the central sensing unit and one of the adjacent sensing units can indicate another output signal when touched. Similarly, a combination of three, four, and more sensing units can be used to represent a variety of different output signals. Therefore, the configuration of the sensing unit can provide a variety of output signals to indicate different instructions. The sensing unit is electrically connected to the control circuit. Therefore, the capacitive touch sensing module in the touch protection device of the present invention can further locate the position of the finger more accurately. Therefore, although the sensing unit of the present invention may be much larger than the sensing unit of the conventional touch panel, the capacitive touch sensing module of the touch protection device of the present invention can accurately position the finger. And the sensing unit of the present invention can output a plurality of signals. The touch protection device completed in the present case may be transparent or opaque. Preferably, the cover 102 may be transparent so that the content of the mobile device display placed in the protection device can be clearly read. As for the housing 101 The integral back surface 1012 or the integral side surface 1013 can be opaque, but can still control the operation of the mobile device in response to user clicks or sliding over its surface. For example, when the user holds the touch protection device, the index finger can be slid on the back surface 1012 to turn the mobile device.

Referring to the ninth figure, the corresponding change in capacitance value generated when the finger performs different operations on the capacitive touch sensing module is shown. For example, when the finger does not touch the capacitive touch sensing module at all, the total capacitance value sensed on the circuit is C0; when the finger touches the touch area of the capacitive touch sensing module (only on the surface but not When the force is pressed or released from the pressed state but remains in contact with the touch area, the total capacitance value sensed on the circuit is C1; and when the finger presses the capacitive touch sensing module, the circuit senses The total capacitance value is C2. The relationship between the capacitance values described above is C2>C1>C0. It can be seen that the apertures enable the capacitive touch sensing module of the touch protection device of the present invention to not only play the general input text or symbol function, but also add the function of gesture operation.

FIG. 10 is a partial cross-sectional view of the capacitive touch sensing module in the touch protection device of the third preferred embodiment. The composition of the capacitive touch sensing module in this embodiment is substantially the same as that of the previous example, except that the capacitive sensing circuit 40 and the one-dimensional sensor layer 41 are integrated on a multi-layer printed circuit board, thereby making the touch The overall protection device is thinner and the steps and costs of combining the two layers are eliminated. In this example, the capacitive sensing circuit 40 includes a shielding layer 401 for engaging the one-dimensional sensor layer 41 to make the signal from the one-dimensional sensor layer 41 more pure. Depending on the complexity of the capacitance sensing circuit itself, Multilayer printed circuit boards can be up to 4 or 5 layers.

Further, the sensing unit of the plurality of receiving slots 42 extending through the one-dimensional sensor layer 41 and the shielding layer 401 correspond to specific portions of the sensing units. An array of light emitting diodes (LEDs) 43 are received in the receiving slots 42 and electrically connected to the capacitive sensing circuit 40 to be controlled by the capacitive sensing circuit 40. The opening tray 42 is provided to allow LED light to be emitted outward and observed. Thus, in one embodiment, the soft masking layer (not shown) and the flexible interposer (not shown) as a whole may have sufficient transparency to allow LED light to pass through. In another embodiment, a portion of the flexible interposer (not shown) and the soft shielding layer (not shown) corresponding to the LED array 43 may have sufficient transparency to thereby enable LED light. Be able to reveal.

Referring to FIG. 11 , it is a schematic diagram of a capacitive touch sensing module in a touch protection device according to a fourth preferred embodiment. In this embodiment, numbers, characters or symbols can be printed on the outer surface of the cover of the touch protection device, and can be matched with the LED array in the third embodiment. The light emitting diode (LED) unit 47 within each sensing unit 46 shown in the figures includes three colors (red, blue, green) that generally correspond to portions of numbers, words or symbols. In order to clearly show the present invention, the numeral, letter or symbol portion is slightly offset from the light-emitting diode unit 47 in the eleventh diagram. In one embodiment, a combination of different color LED units 47 may be utilized to indicate different situations, such as to indicate that the mobile device received a message, has a missed call, or the battery is about to be powered down. In order to clearly illustrate the present invention, the openings located within the outline of the sensing unit 46 are omitted in the eleventh diagram. Therefore, when the user uses the capacitive touch sensing module embedded in the outer surface of the cover of the touch protection device to make a call or input a number, a character or a symbol, the illumination of the LED unit 47 can be performed. Clearly see the numbers, words, or symbols. The LED indicator of this design is mainly used to provide sufficient illumination for the user to observe where the digits, words or symbols to be pressed are located, especially in a dim environment, which allows the user to Press the number, text, or symbol to make a call or enter a message. Of course, the shape of the sensing unit can also be designed to be different from the embodiment according to other considerations.

While the preferred embodiment of the invention has been described, it will be understood by those of ordinary skill in the art On the other hand, those skilled in the art can make a number of changes and refinements within the spirit and scope of the invention as defined by the following claims.

10‧‧‧Touch protection device

101‧‧‧shell

1011‧‧‧ receiving groove

1013‧‧‧ side surface

1014‧‧‧Connector

1015‧‧‧ hole

1016‧‧‧上上

1017‧‧‧下下

102‧‧‧ cover

1021‧‧‧ inner surface

103‧‧‧Rotary axis

Claims (9)

A touch protection device is applied to a mobile device. The touch protection device includes: a protective cover having a receiving recess for receiving the mobile device. A connector is provided for coupling a connection hole of the mobile device; a capacitive touch sensing module is embedded in the protective cover, the capacitive touch sensing module comprises: a soft shielding layer, including a grounding a planar and a dielectric material, the dielectric material covering the ground plane, the soft mask layer further comprising a touch area on the outer surface; the one-dimensional sensor layer includes an electrical connection to the connector a plurality of sensing units corresponding to the plurality of touch regions; and a flexible interposer sandwiched between the ground plane of the soft shielding layer and the one-dimensional sensor layer To form a capacitor structure. The touch-sensitive protection device of claim 1, wherein the capacitive touch sensing module further includes a capacitive sensing circuit electrically connected to the plurality of sensing units to sense a capacitance change. The capacitive sensing circuit is electrically coupled to the connector. The touch protection device of claim 1, wherein each of the plurality of sensing units is hexagonal to form a honeycomb pattern, and the honeycomb pattern of one unit includes a central portion. A hexagon and six adjacent hexagons surrounding the central hexagon, wherein the outer surface is printed with a plurality of numbers, words or symbols. The touch protection device of claim 3, further comprising a light emitting diode array, wherein the capacitive sensing circuit and the one-dimensional sensor layer are integrated into a single multilayer printed circuit board, The capacitive sensing circuit includes a shielding layer for bonding the one-dimensional sensor layer, and the one-dimensional sensor layer and the shielding layer comprise a plurality of receiving slots formed therein for receiving the light-emitting diode A plurality of light emitting diode units in the array, the plurality of light emitting diode units corresponding to the plurality of numbers, characters or symbols. The touch protection device of claim 1, wherein the soft shielding layer comprises a plurality of openings formed therein, the plurality of openings corresponding to the plurality of touch regions, the plurality of openings Each of the holes exposes the soft interposer. The touch protection device according to claim 1, wherein the material of the ground plane comprises copper, silver glue, indium tin oxide, antimony tin oxide, indium zinc oxide, zinc oxide or a combination thereof, the dielectric material Contains polymethyl methacrylate, polyethylene terephthalate film or rubber. The touch protection device of claim 1, wherein the protective cover comprises: a cover body including an outer surface and an inner surface; and a casing connected to an edge of the cover body, The housing includes the receiving groove, a back surface and a side surface, wherein the capacitive touch sensing module is embedded in the cover body. The touch protection device of claim 1, wherein the protective cover comprises only: a housing, the receiving groove, a back surface and a side surface, wherein the back surface or the side surface The capacitive touch sensing module is embedded. The touch protection device of claim 7 or 8, wherein the housing comprises an upper portion and a lower portion, the upper portion and the lower portion being combined by a snap groove.