TWI755103B - External keyboard and portable electronic device - Google Patents

Abstract

An external keyboard including a casing, a plurality of transparent buttons and a plurality of elastic arms is provided. The casing has a plurality of through holes where the plurality of transparent buttons are respectively disposed in. Each of the plurality of transparent buttons is connected to the casing through two of the plurality of elastic arms that are symmetrically disposed and the two elastic arms are disposed at two sides of the corresponding transparent button. Each of the plurality of elastic arms includes a first connecting part connected to the corresponding transparent button, a second connecting part connected to the casing and an oblique arm part located between the first connecting part and the second connecting part, and each of the oblique arm parts has a recess. A portable electronic device is also provided.

Description

External keyboards and portable electronic devices

The present invention relates to a keyboard and an electronic device, and more particularly, to an external keyboard and a portable electronic device.

Take an external keyboard applied to a smart phone, tablet computer or dual-screen notebook computer as an example, the external keyboard is suitable for covering the touch screen to cooperate with the virtual keyboard displayed on the touch screen for users to use Use an external keyboard to operate or input messages to a smartphone, tablet or dual-screen laptop.

A common external keyboard prints characters or patterns corresponding to a specific country or a specific input method on the keys, so it cannot be used in all countries or all input methods. On the other hand, most of the common external keyboards are flexible membrane keyboards, so they cannot give users a solid and clear operating feel.

The present invention provides an external keyboard, which has excellent versatility and can give users a solid and clear operating feel.

The present invention provides a portable electronic device which integrates the above external keyboard.

The present invention provides an external keyboard, which includes a casing, a plurality of transparent keys and a plurality of elastic arms. The casing has a plurality of through holes, and the plurality of transparent keys are respectively disposed in the plurality of through holes. Each transparent key is connected to the casing through two symmetrically arranged elastic arms, and the two elastic arms are respectively located on both sides of the corresponding transparent key, wherein each elastic arm includes a first connecting part connecting the corresponding transparent key, A second connection part which is connected to the housing and is opposite to the first connection part and an inclined arm part located between the first connection part and the second connection part, and each inclined arm part has a recess.

In an embodiment of the present invention, the inclined arm portion of each elastic arm further has an upper inclined surface and a lower inclined surface opposite to the upper inclined surface, and the recess is located on the upper inclined surface or the lower inclined surface.

In an embodiment of the present invention, each of the above-mentioned transparent keys includes a transparent key body, a transparent conductive layer covering the transparent key body, and a frame body, and the transparent key body and the transparent conductive layer are disposed in the frame body. The transparent conductive layer has a top surface and a bottom surface opposite to the top surface, and the top surface and the bottom surface are exposed outside the frame.

In an embodiment of the present invention, the first connecting portion of each elastic arm is connected to the corresponding frame body.

In an embodiment of the present invention, each of the above-mentioned transparent keys has a pressing surface, and the extending direction of the inclined arm portion of each elastic arm is not perpendicular to the normal direction of the pressing surface of the corresponding transparent key.

In an embodiment of the present invention, the included angle between the extending direction of the inclined arm portion of each elastic arm and the reference line perpendicular to the normal direction of the pressing surface of the corresponding transparent key ranges from 45 degrees to 60 degrees. .

The present invention provides a portable electronic device comprising a first display, a second display and the above-mentioned external keyboard. The second display is pivotally connected to the first display, the second display has a display area and a non-display area surrounding the display area, and the second display is provided with a plurality of sensors in the non-display area. The external keyboard is detachably and slidably arranged on the second display. The plurality of transparent key pairs are located in the display area. The casing also has a pair of sensing parts located in the non-display area. When the sensing part overlaps with any one of the sensors, the area of the display area of the second display that overlaps with the external keyboard displays a display corresponding to the multiple sensors. A virtual keyboard with transparent keys.

In an embodiment of the present invention, other areas of the display area of the second display that are not overlapped with the external keyboard display the user interface.

In an embodiment of the present invention, the above-mentioned sensors include a plurality of Hall sensors, and the sensed portion includes a magnet.

In an embodiment of the present invention, the above-mentioned sensors include a plurality of light sensors, and the sensing portion includes a reflection member.

Based on the above, the external keyboard of the present invention can be applied to the touch display, and the portable electronic device of the present invention adopts the external keyboard, so the user can operate the virtual keyboard displayed on the touch display through the external keyboard. Because the transparent keys in the external keyboard are supported by the elastic arms, they are suspended on the touch display, and the elastic arms are provided with recesses. When the transparent button is pressed down by force, the elastic arm subjected to the force will collapse and deform from the depression, causing the transparent button to drop instantly, so as to give the user a solid and clear operating feel.

In addition, the transparent keys allow light to pass through, so the user can view the characters or patterns of the virtual keys in the virtual keyboard through the transparent keys, so as to facilitate operation or input information to the touch display. Further, according to different countries, different input methods or different operation requirements, users can switch the characters or patterns displayed on the virtual keyboard according to their personal needs, so the external keyboard of the present invention has excellent generality with portable electronic devices. sex.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

1A to 1C are schematic top views of a portable electronic device in different modes according to an embodiment of the present invention. Please refer to FIG. 1A and FIG. 1B first. In this embodiment, the portable electronic device 10 may be a combination of a dual-screen notebook computer and an external keyboard 100 , wherein the dual-screen notebook computer includes a first display 20 and a hinged connection on the second display 30 of the first display 20 . The second display 30 may be a touch display, and the first display 20 may be a touch display or a non-touch display.

It is particularly noted that, in other embodiments, the portable electronic device may be a combination of a smart phone and an external keyboard, or a combination of a tablet computer and an external keyboard, or other touch display devices and an external keyboard combination of keyboards.

As shown in FIGS. 1A and 1B , the second display 30 has a display area 31 and a non-display area 32 surrounding the display area 31 , wherein the display area 31 is a touch display area, and the second display 30 is provided in the non-display area 32 There are multiple sensors 33 . For example, the plurality of sensors 33 may be a plurality of Hall sensors.

On the other hand, the external keyboard 100 is detachably and slidably disposed on the second display 30 . In the operation mode shown in FIG. 1A , the external keyboard 100 does not cover the second display 30 . In some embodiments, the external keyboard 100 can be wirelessly coupled to the first display 20 or the second display 30 for the user to operate or input information to the first display 20 or the second display 30 through the external keyboard 100 .

In this embodiment, the external keyboard 100 is provided with a sensing portion 101 , wherein the sensing portion 101 can be a magnet, and the plurality of sensors 33 are arranged on the sliding path 102 of the sensing portion 101 . In the operation mode shown in FIG. 1B , the external keyboard 100 covers part of the second display 30 , wherein the sensing portion 101 is located in the non-display area 32 and overlaps the first sensor 33 . When the first sensor 33 detects the change of the magnetic flux, the second display 30 can determine the overlapping area between the external keyboard 100 and the display area 31 , and cut the display image of the display area 31 accordingly. Further, the area of the display area 31 that overlaps the external keyboard 100 displays the virtual keyboard 34 , and the other areas of the display area 31 of the second display 30 that do not overlap the external keyboard 100 display the user interface 35 .

Therefore, the user can operate or input information to the portable electronic device 10 through the cooperation of the external keyboard 100 and the virtual keyboard 34 . Besides, the user can also operate or input information to the portable electronic device 10 through the user interface 35 . In other words, the portable electronic device 10 has excellent operational convenience and flexibility.

1B and FIG. 1C , when the external keyboard 100 slides relative to the second display 30 and the sensing portion 101 moves from the first sensor 33 to the second sensor 33 , the sensing portion 101 overlaps the second sensor 33, and the second sensor 33 detects the change of the magnetic flux. At this time, the second display 30 can determine that the overlapping area between the external keyboard 100 and the display area 31 has changed, and adjust the cutting method of the display screen accordingly.

Referring to FIGS. 1A to 1C , in this embodiment, the external keyboard 100 includes a plurality of transparent keys 110 . When the sensing portion 101 overlaps any one of the sensors 33 , the plurality of transparent keys 110 are positioned opposite to each other. The display area 31 , and the area of the display area 31 overlapping the external keyboard 100 displays the virtual keyboard 34 corresponding to the plurality of transparent keys 110 . Further, the virtual keyboard 34 includes a plurality of virtual keys corresponding to the plurality of transparent keys 110 , and each transparent key 110 corresponds to a virtual key.

Since the transparent keys 110 allow light to pass through, the user can view the characters or patterns of the virtual keys in the virtual keyboard 34 through the transparent keys 110 to facilitate operation or input of information to the portable electronic device 10 . Furthermore, according to different countries, different input methods or different operation requirements, the user can switch the characters or patterns displayed on the virtual keyboard 34 according to individual needs, so the external keyboard 100 has excellent versatility.

FIG. 2A is an enlarged schematic partial cross-sectional view of the portable electronic device of FIG. 1B along the section line I-I. 1B and FIG. 2A , in this embodiment, the external keyboard 100 further includes a casing 120 and a plurality of elastic arms 130 , wherein the sensing portion 101 is disposed on the side of the casing 120 , and the casing 120 has A plurality of through holes 121 for accommodating the plurality of transparent keys 110 and the plurality of elastic arms 130 . The casing 120 is placed on the touch display surface 36 of the second display 30 , and the transparent buttons 110 and the elastic arms 130 are suspended from the touch display surface 36 of the second display 30 .

Further, each through hole 121 is provided with a transparent key 110 and two elastic arms 130 arranged symmetrically, and the transparent key 110 is connected to the casing 120 through the two elastic arms 130 . More specifically, the two elastic arms 130 are respectively located on two sides of the transparent key 110 , and the transparent key 110 is suspended from the touch display surface 36 of the second display 30 by the support of the two elastic arms 130 . In another embodiment, the transparent keys 110 can be connected to the housing 120 through two opposite elastic arms 130 , that is, the four elastic arms 130 are respectively located on the front, rear, left, right, and four sides of the transparent keys 110 and surround the transparent keys 110 to make the transparent keys 110 transparent. The keys 110 are suspended from the touch display surface 36 of the second display 30 by the support of the four elastic arms 130 .

In this embodiment, in any one of the through holes 121 , when the transparent key 110 is pressed down by force, the transparent key 110 moves close to or contacts the touch display surface 36 of the second display 30 , and the two elastic arms 130 generate deformed. Once the downward pressure applied to the transparent keys 110 is removed, the two elastic arms 130 are elastically restored to drive the transparent keys 110 to move away from the touch display surface 36 of the second display 30 and return to the initial position shown in FIG. 2A . .

In this embodiment, the material of each elastic arm 130 can be silicone, so it has excellent elasticity. Further, each elastic arm 130 includes a first connecting portion 131 , a second connecting portion 132 and an inclined arm portion 133 that are connected to the corresponding transparent key 110 , wherein the first connecting portion 131 is connected to the transparent key 110 , and the second connecting portion is 132 is connected to the housing 120 . The second connecting portion 132 is disposed relative to the first connecting portion 131 , and the inclined arm portion 133 is located between the first connecting portion 131 and the second connecting portion 132 .

The inclined arm portion 133 serves as the main deformation section of the elastic arm 130 , wherein the inclined arm portion 133 has a recess 133 a , and the recess 133 a is located on the upper surface 133 b of the inclined arm portion 133 . Further, the upper surface 133 b of the inclined arm portion 133 faces away from the touch display surface 36 of the second display 30 , and the lower surface 133 c of the inclined arm portion 133 faces the touch display surface 36 of the second display 30 . Because the depression 133a is the structural weakness of the elastic arm 130, when the transparent key 110 is pressed down by force, the elastic arm 130 subjected to the force will collapse and deform from the depression 133a, so that the transparent key 110 falls instantly, so as to feedback to the user that it is solid and stable. A clear operating feel is similar to the operating feel that is fed back to the user by the combination of scissor feet and rubber dome.

For example, in each elastic arm 130, the position of the recess 133a may be located near the first connecting portion 131, near the second connecting portion 132, or at the midpoint of the inclined arm portion 133, wherein the inner diameter of the recess 133a , width or depth can be 1 mm. In addition, in each inclined arm portion 133, the number of the recesses 133a may be one or more.

Referring to FIG. 2A , in this embodiment, each transparent key 110 includes a transparent key body 111 , a transparent conductive layer 112 covering the transparent key body 111 , and a frame body 113 , wherein the transparent key body 111 and the transparent conductive layer 112 are disposed on the Inside the frame body 113 , and the top surface 112 a and the bottom surface 112 b of the transparent conductive layer 112 are exposed outside the frame body 113 . The top surface 112 a of the transparent conductive layer 112 serves as the pressing surface of the transparent key 110 , and the bottom surface 112 b is opposite to the top surface 112 a and faces the touch display surface 36 of the second display 30 .

The material of the transparent key body 111 can be made of acrylic or glass, or other materials with similar light-transmitting effect, and the material of the transparent conductive layer 112 can be made of a transparent conductive material, such as indium tin oxide (Indium Tin Oxide) or Silver Nanowire. When the transparent key 110 is pressed down by force, the bottom surface 112b of the transparent conductive layer 112 moves close to or contacts the touch display surface 36 of the second display 30, and the second display 30 judges the touch display surface 36 according to the change of the capacitance value. trigger location.

Please refer to FIG. 1B and FIG. 2A , in the orthographic direction, each transparent key 110 overlaps one virtual key in the virtual keyboard 34 . When the user presses any transparent key 110, the virtual key corresponding to the transparent key 110 in the virtual keyboard 34 is triggered. That is, the user can operate the virtual keyboard 34 through the external keyboard 100 .

Referring to FIG. 2A , the first connection portion 131 of each elastic arm 130 is connected to the corresponding frame body 113 in a direction parallel to the normal direction 114 of the pressing surface of the transparent key 110 (ie, the top surface 112 a of the transparent conductive layer 112 ). Above, there is a height difference between the first connecting portion 131 and the second connecting portion 132 . Specifically, the extending direction 134 of the inclined arm portion 133 of each elastic arm 130 is not perpendicular to the normal direction 114 of the corresponding pressing surface of the transparent key 110 (ie, the top surface 112 a of the transparent conductive layer 112 ). On the other hand, the included angle 136 between the extending direction 134 of the inclined arm portion 133 of each elastic arm 130 and the reference line 135 perpendicular to the normal direction 114 is between 45 degrees and 60 degrees, so that the inclined arm portion 133 has sufficient The supporting force is used to support the transparent key 110 and ensure that the transparent key 110 has a sufficient pressing stroke.

2B is an enlarged schematic partial cross-sectional view of a portable electronic device according to another embodiment of the present invention. Referring to FIG. 2B , compared with the external keyboard 100 of FIG. 2A , in the external keyboard 100A of the present embodiment, the recess 133 a is located on the lower surface 133 c of the inclined arm portion 133 and faces the touch control of the second display 30 Display surface 36. Because the depression 133a is the structural weakness of the elastic arm 130, when the transparent key 110 is pressed down by force, the elastic arm 130 subjected to the force will collapse and deform from the depression 133a, so that the transparent key 110 falls instantly, so as to feedback to the user that it is solid and stable. A clear operating feel is similar to the operating feel that is fed back to the user by the combination of scissor feet and rubber dome.

For example, in each elastic arm 130, the position of the recess 133a may be located near the first connecting portion 131, near the second connecting portion 132, or at the midpoint of the inclined arm portion 133, wherein the inner diameter of the recess 133a , width or depth can be 1 mm. In addition, in each inclined arm portion 133, the number of the recesses 133a may be one or more.

3A to 3F are schematic top views of the portable electronic device in different operation modes according to another embodiment of the present invention. Please refer to FIGS. 3A and 3B , the design principle of the portable electronic device 10A of the present embodiment is substantially the same as the design principle of the portable electronic device 10 of the previous embodiment, and the main difference is that the portable electronic device 10A adopts The light sensing principle is used to determine the area of the display area 31 that overlaps with the external keyboard 100 .

In this embodiment, the second display 30 is provided with a plurality of sensors 33a in the non-display area 32, and can be a plurality of light sensors. Each light sensor includes a light emitting part and a light receiving part, wherein the light emitting part is used for emitting light, and the light receiving part is used for receiving the reflected light. Correspondingly, the sensing portion 101a can be a reflector, and the plurality of sensors 33a are arranged on the sliding path 102 of the sensing portion 101a.

In the operation mode shown in FIG. 3A , the external keyboard 100 does not cover the second display 30 . In the operation mode shown in FIG. 3B , the external keyboard 100 covers part of the second display 30 , wherein the sensing portion 101 a is located in the non-display area 32 and overlaps the first sensor 33 a. When the light emitted by the first sensor 33 is projected onto the sensing portion 101 a , the light is reflected from the sensing portion 101 a back to the first sensor 33 and received by the first sensor 33 . At this time, the second display 30 can determine the overlapping area between the external keyboard 100 and the display area 31 , and cut the display image of the display area 31 accordingly. Further, the area of the display area 31 that overlaps the external keyboard 100 displays the virtual keyboard 34 , and the other areas of the display area 31 of the second display 30 that do not overlap the external keyboard 100 display the user interface 35 .

Referring to FIGS. 3B to 3E , as the external keyboard 100 slides relative to the second display 30 , the sensing portion 101 can move from the first sensor 33 to the second, third, fourth or The fifth sensor 33 . Based on the change of the optical transceiver position, the second display 30 can determine that the overlapping area between the external keyboard 100 and the display area 31 has changed, and adjust the cutting method of the display screen accordingly.

In other embodiments, the portable electronic device can use the principle of telecommunication sensing to determine the area of the display area that overlaps with the external keyboard. In detail, the plurality of sensors may be a plurality of first conductive pads, and the sensed portion may be a second conductive pad. When the external keyboard covers part of the second display and the second conductive pad overlaps any of the first conductive pads, the second display can determine the overlapping area between the external keyboard and the display area according to the electrical conduction position, and accordingly The display screen of the cut display area.

FIG. 4 is a schematic diagram of switching of a virtual keyboard according to an embodiment of the present invention. Please refer to FIG. 4 , the virtual keyboard 34 includes a plurality of virtual keys 34a. Taking the cooperation of any virtual key 34a and the corresponding transparent key 110 as an example, the character or pattern of the virtual key 34a is located at the center of the transparent key 110, and only Renders a single character or pattern to improve presentation clarity. On the other hand, the virtual keyboard 34 includes input method switching keys, symbol switching keys or pattern switching keys for the user to quickly switch input methods, symbols or patterns through the input method switching keys, symbol switching keys or pattern switching keys.

To sum up, the external keyboard of the present invention can be applied to the touch display, and the portable electronic device of the present invention adopts the external keyboard, so the user can operate the virtual keyboard displayed on the touch display through the external keyboard. keyboard. Because the transparent keys in the external keyboard are supported by the elastic arms, they are suspended on the touch display, and the elastic arms are provided with recesses. When the transparent button is pressed down by force, the elastic arm subjected to the force will collapse and deform from the depression, causing the transparent button to drop instantly, so as to give the user a solid and clear operating feel.

In addition, the transparent keys allow light to pass through, so the user can view the characters or patterns of the virtual keys in the virtual keyboard through the transparent keys, so as to facilitate operation or input information to the touch display. Further, according to different countries, different input methods or different operation requirements, users can switch the characters or patterns displayed on the virtual keyboard according to their personal needs, so the external keyboard of the present invention has excellent generality with portable electronic devices. sex.

Although the present invention has been disclosed above by the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present invention shall be determined by the scope of the appended patent application.

10, 10A: Portable electronic device 20: The first display 30: Second monitor 31: Display area 32: Non-display area 33, 33a: Sensor 34: Virtual keyboard 34a: virtual keys 35: User Interface 36: Touch display surface 100, 100A: External keyboard 101, 101a: Sensing part 102: Sliding Path 110: Transparent keys 111: Transparent key body 112: Transparent conductive layer 112a: top surface 112b: Bottom surface 113: Frame 114: normal direction 120: Shell 121: Through hole 130: elastic arm 131: The first connection part 132: Second connecting part 133: Oblique arm 133a: Sag 133b: upper surface 133c: lower surface 134: extension direction 135: Baseline 136: Angle I-I: Section Line

1A to 1C are schematic top views of a portable electronic device in different operation modes according to an embodiment of the present invention. FIG. 2A is an enlarged schematic partial cross-sectional view of the portable electronic device of FIG. 1B along the section line I-I. 2B is an enlarged schematic partial cross-sectional view of a portable electronic device according to another embodiment of the present invention. 3A to 3F are schematic top views of the portable electronic device in different operation modes according to another embodiment of the present invention. FIG. 4 is a schematic diagram of switching of a virtual keyboard according to an embodiment of the present invention.

10: Portable Electronic Devices

20: The first display

30: Second monitor

31: Display area

32: Non-display area

33: Sensor

34: Virtual keyboard

35: User Interface

100: External keyboard

101: Sensing part

102: Sliding Path

110: Transparent keys

120: Shell

I-I: Section Line

Claims (17)

An external keyboard comprising: a shell with a plurality of through holes; a plurality of transparent keys, respectively disposed in the through holes; and A plurality of elastic arms, wherein each of the transparent keys is connected to the casing through two symmetrically arranged elastic arms, and the two elastic arms are respectively located on both sides of the corresponding transparent key, wherein each of the elastic arms includes a connection to the corresponding a first connection part of the transparent key, a second connection part connected to the casing and opposite to the first connection part, and an inclined arm part located between the first connection part and the second connection part, and Each of the inclined arm portions has a recess. The external keyboard of claim 1, wherein the inclined arm portion of each elastic arm further has an upper inclined surface and a lower inclined surface opposite to the upper inclined surface, and the recess is located on the upper inclined surface. The external keyboard of claim 1, wherein the inclined arm portion of each elastic arm further has an upper inclined surface and a lower inclined surface opposite to the upper inclined surface, and the recess is located on the lower inclined surface. The external keyboard of claim 1, wherein each of the transparent keys comprises a transparent key body, a transparent conductive layer covering the transparent key body, and a frame body, and the transparent key body and the transparent conductive layer are disposed Inside the frame, the transparent conductive layer has a top surface and a bottom surface opposite to the top surface, and the top surface and the bottom surface are exposed outside the frame. The external keyboard of claim 4, wherein the first connecting portion of each elastic arm is connected to the corresponding frame. The external keyboard of claim 1, wherein each of the transparent keys has a pressing surface, and an extension direction of the inclined arm portion of each of the elastic arms is not perpendicular to the direction of the corresponding pressing surface of the transparent key A normal direction. The external keyboard as claimed in claim 6, wherein the extension direction of the inclined arm portion of each elastic arm is between the extension direction and a reference line perpendicular to the normal direction of the pressing surface of the corresponding transparent key An included angle is between 45 degrees and 60 degrees. A portable electronic device, comprising: a first display; a second display, pivotally connected to the first display, the second display has a display area and a non-display area surrounding the display area, and the second display is provided with a plurality of sensors in the non-display area ; An external keyboard, detachably and slidably disposed on the second display, wherein the external keyboard includes: a shell with a plurality of through holes; a plurality of transparent keys, respectively disposed in the through holes, and the pairs of transparent keys are located in the display area; A plurality of elastic arms, wherein each of the transparent keys is connected to the casing through two symmetrically arranged elastic arms, and the two elastic arms are respectively located on both sides of the corresponding transparent key, wherein each of the elastic arms includes a connection to the corresponding a first connection part of the transparent key, a second connection part connected to the casing and opposite to the first connection part, and an inclined arm part located between the first connection part and the second connection part, and Each of the inclined arm portions has a depression, The casing also has a sensing portion located in the non-display area. When the sensing portion overlaps any of the sensors, the display area of the second display overlaps the external keyboard. The area of displays the virtual keyboard corresponding to the transparent keys. The portable electronic device as claimed in claim 8, wherein other areas of the display area of the second display that do not overlap with the external keyboard display the user interface. The portable electronic device of claim 8, wherein the sensors include a plurality of Hall sensors, and the sensed portion includes a magnet. The portable electronic device of claim 8, wherein the sensors include a plurality of light sensors, and the sensed portion includes a reflector. The portable electronic device as claimed in claim 8, wherein the inclined arm portion of each elastic arm further has an upper inclined surface and a lower inclined surface opposite to the upper inclined surface, and the recess is located on the upper inclined surface . The portable electronic device as claimed in claim 8, wherein the inclined arm portion of each elastic arm further has an upper inclined surface and a lower inclined surface opposite to the upper inclined surface, and the recess is located on the lower inclined surface . The portable electronic device of claim 8, wherein each of the transparent keys comprises a transparent key body, a transparent conductive layer covering the transparent key body, and a frame, and the transparent key body and the transparent conductive The layer is disposed in the frame, the transparent conductive layer has a top surface and a bottom surface opposite to the top surface, and the top surface and the bottom surface are exposed outside the frame. The portable electronic device of claim 14, wherein the first connecting portion of each elastic arm is connected to the corresponding frame. The portable electronic device of claim 8, wherein each of the transparent keys has a pressing surface, and an extension direction of the inclined arm portion of each of the elastic arms is not perpendicular to the pressing of the corresponding transparent key A normal direction of the face. The portable electronic device as claimed in claim 16, wherein the extension direction of the inclined arm portion of each elastic arm is between a reference line perpendicular to the normal direction of the pressing surface of the corresponding transparent key An included angle between them is between 45 degrees and 60 degrees.

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