JP5441160B2 - Key input device and electronic device - Google Patents

Description

  The present invention relates to a key input device and an electronic device, and more specifically, a key input device in which two functions are assigned to one key and the two functions can be selectively selected, and the key input thereof. The present invention relates to an electronic device equipped with the device.

  A representative example of an interface device between a computer application device and a human is a “keyboard”. For example, as a familiar example, a channel switching button provided on a TV remote control, a numeric keypad of a mobile phone, and the like are also a kind of keyboard.

  On the other hand, the number of multifunctional functions of TVs and mobile phones has been remarkable, and the number of keys on the “keyboard” tends to increase accordingly. However, there is a limit to the case size of the remote control and mobile phones, and it is usually not used very often. There are many key input devices in which one key is duplicated, that is, two functions are assigned to one key because there are no functions.

  FIG. 11 is a conceptual diagram of a conventional key input device. This shows the gist of the technique described in Patent Document 1 below, for example. In the figure, an appropriate number (for convenience, 3 × 3 = 9) rectangular windows 2 are opened in the mask sheet 1 made of an opaque thin plate material, and below this mask sheet 1 toward the drawing. A printing panel 3 that can slide up and down is also provided.

  Two character groups are printed on the printing panel 3. In the figure, for example, numbers “1” to “9” are printed as the first character group, and alphabets “A” to “I” are printed as the second character group. Here, if the distance between lines of each character group is X, the first line (“1” to “3”), the second line (“4” to “6”), and the third line of the first character group. (“7” to “9”) are arranged at equal intervals with a distance X, and similarly, the first line (“A” to “C”) and the second line (“D” to “D” of the second character group). F ”) and the third row (“ G ”to“ I ”) are also arranged at equal intervals with a distance X.

On the other hand, the vertical interval of the rectangular window 2 is also set to the same value as the above-mentioned inter-line distance X. And, by making the vertical distance of the rectangular window 2 equal to the line spacing of the first and second character groups in this way,
(1) When each character (“1”, “2”, “3”,...) Of the first character group is visible from each of the rectangular windows 2, each character of the second character group (“ A ”,“ B ”,“ C ”...) Are hidden behind the mask sheet 1 and cannot be seen (the state shown in FIG. 11A).
(2) On the contrary, when each character (“A”, “B”, “C”...) Of the second character group is visible from each of the rectangular windows 2, the first character group Each character (“1”, “2”, “3”...) Is hidden behind the mask sheet 1 and cannot be seen (the state shown in FIG. 11B).
In short, it is possible to realize the overlapping use of one key (for example, one key is selectively used by the “1” key and the “A” key).

JP 2009-71852 A

  The disadvantage of the above prior art (shown in FIG. 11) is that a useless space is created between the keys. That is, in FIG. 11, a total of nine rectangular windows 2 arranged in a matrix in three horizontal directions and three vertical directions function as keys, but the vertical intervals of the rectangular windows 2 are separated by a distance X. This distance X is an indispensable requirement for hiding unnecessary key notation (one of the first and second character groups), and therefore a wasteful space corresponding to the distance (X). Is inevitably generated between the keys, and as a result, there is a problem that miniaturization of the keyboard is hindered. This problem means that an electronic device on which the keyboard is mounted, for example, a remote controller or a mobile phone cannot be reduced, and is a technical problem that must be solved by all means because it is contrary to today's social demands.

  Therefore, the present invention provides a key input device that contributes to miniaturization of a keyboard by eliminating a useless space generated between the keys, and an electronic device equipped with the key input device.

According to the first aspect of the present invention, there is provided a printing panel placed in a position movable state inside a key top made of a transparent material, an optical lens positioned on the surface of the key top, and the key top of the printing panel. Moving means for changing the position in either the first position or the second position, and the print panel has first key display information and second key display information, When the position of the print panel is changed by the moving means to either the first position or the second position, when the print panel is viewed through the optical lens at each position, the first position is changed. 1st key display information and 2nd key display information are comprised so that it may selectively see , Comprising: The 1st magnet which can move a position with the said printing panel, Opposing to the 1st magnet Provided in the position to A first state in which the same polarity of the first magnet and the second magnet face each other by the moving means, and a difference between the first magnet and the second magnet. When the second state where the poles face each other is selected and the print panel is viewed through the optical lens in the first state and the second state, the first key display information And the second key display information are selectively visible, and when the first magnet and the second magnet are in the second state where the opposite poles face each other, A key input device having a spacer for securing a predetermined separation distance between a magnet and the second magnet .
According to a second aspect of the present invention, the printing panel includes a plurality of columns that are subdivided into strips, and the first key display information and the second key display information are alternately formed in each column. The key input device according to claim 1 .
A third aspect of the present invention is the key input device according to the first aspect, wherein the optical lens is composed of a plurality of lenses having an irregular cross-sectional shape.
According to a fourth aspect of the present invention, in the key input device according to the first aspect, the optical lens has a light shielding member on the lens surface.
A fifth aspect of the present invention is an electronic apparatus including the key input device according to any one of the first to fourth aspects.

  ADVANTAGE OF THE INVENTION According to this invention, the wasteful space which arises between each key can be eliminated, and the key input device which contributes to size reduction of a keyboard, and the electronic device carrying the key input device can be provided.

It is an external view of a mobile phone. It is a figure which shows the redundant use of the key in this embodiment. It is a figure which shows the internal structure (1st key display state) of the operation part. It is a figure which shows the internal structure (2nd key display state) of the operation part. 3 is a diagram showing details of a printing panel 32 and a lenticular lens 31. FIG. It is a conceptual diagram in the case of seeing the 1st key display information. It is a conceptual diagram when the second key display information 35 is viewed. It is a figure which shows the 1st improvement example. It is a figure which shows the 2nd example of improvement. It is a figure which shows the 3rd example of improvement. It is a conceptual diagram of the conventional key input device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, taking a mobile phone as an example.

  FIG. 1 is an external view of a mobile phone. The mobile phone 10 shown in the figure is configured such that an upper lid 12 having a display unit 11 such as a liquid crystal panel and a main body unit 14 having an operation unit 13 composed of a plurality of keys are connected by a hinge mechanism 15 so as to be opened and closed ( This is a so-called folding mobile phone 10), but this is only an example.

  When using the cellular phone 10, as shown in the front view (a) and side view (b) of the figure, the top cover 12 is opened and a desired key of the operation unit 13 is selected, for example, telephone call or An incoming call operation is performed, but each key of the operation unit 13 in the present embodiment is a key that can be used for “duplicate use” described at the beginning, that is, two functions are assigned to one key and the two functions are selected. It is a mechanism that can be selected singly, and the details of the mechanism will be described below.

  First, a small knob 16 is provided on the side surface of the main body 14 (near the upper part of the right side surface in the figure). The knob 16 protrudes slightly from a rectangular hole 17 formed in the main body 14, and can be manually slid along the longitudinal direction of the rectangular hole 17. The longitudinal direction of the rectangular hole 17 is in the vertical direction toward the drawing of the side surface of the main body 14, and therefore the knob 16 can be manually slid in the vertical direction toward the drawing.

  2A and 2B are diagrams showing overlapping use of keys in the present embodiment, in which FIG. 2A shows a first key display state and FIG. 2B shows a second key display state. These two key display states can be alternatively selected by sliding the knob 16. Specifically, as shown in (a), when the knob 16 is positioned on the upper side of the drawing, the first key display state is set, but as shown in (b), the knob 16 is on the lower side of the drawing. When it is positioned at, it is switched to the second key display state.

  For convenience of explanation, the display of each key of the operation unit 13 in the first key display state is “a”, “ka”, “sa”, “ta”,..., And the second key display state. When the keys on the operation unit 13 are displayed as “1”, “2”, “3”, “4”,..., When the knob 16 is positioned on the upper side of the drawing, The keys function as character input keys of “A”, “KA”, “SA”, “TA”..., And when the knob 16 is located on the lower side of the drawing, each key of the operation unit 13 is Functions as numeric input keys “1”, “2”, “3”, “4”.

3 is a diagram showing an internal structure (first key display state) of the operation unit 13, where (a) is a cross-sectional view taken along the line ZZ in FIG. 1, and (b) is a YY arrow in FIG. FIG. 3C is a sectional view taken along line XX in FIG.
3A, the knob 16 is slidable up and down in the drawing along the first guide groove 18 formed on the side wall of the main body portion 14. Further, the knob 16 is attached to the main body portion 14. It is attached to the right end of the incorporated plate 19. The plate 19 extends in the width direction of the main body 14, and a second guide groove 20 extending in the vertical direction of the drawing is formed at the left end of the plate 19. As shown in FIG. 3C, a pin 21 rising from the bottom surface of the main body portion 14 is inserted into the second guide groove 20, and movement of the plate 19 in the vertical direction of the drawing is restricted by the pin 21. It has come to be.

  In addition, the length of the second guide groove 20 in the vertical direction of the drawing and the length of the first guide groove 18 in the same direction are substantially the same. It is allowed within the range of the length of the second guide groove 20.

  3A is a state in which the pin 21 is located at the lower end of the second guide groove 20 and the knob 16 is located in the upper part of the drawing. This state is illustrated in FIG. Since the state corresponds to a), hereinafter, the state of FIG. 3A will be referred to as a “first key display state”.

  Further, in FIG. 3A, a plurality of rows (three rows in the figure) of substrates 22 to 24 (hereinafter referred to as a first substrate 22, a second substrate 23, and a third row) extending downward in the drawing on the lower side of the plate 19. A substrate 24) is attached, and the first to third substrates 22 to 24 slide together with the plate 19 in the vertical direction of the drawing.

  On the first to third substrates 22 to 24, n permanent magnets (hereinafter simply referred to as magnets 25 and 26) are attached by sticking or the like. Here, n is a value obtained by doubling the number of keys in the vertical direction in the operation unit 13 or a value exceeding the value. For example, in FIG. 2, the number of keys in the vertical direction of the operation unit 13 is four. Therefore, at least n = 8. In the figure, nine magnets 25 and 26 are provided on each of the first to third substrates 22 to 24 (that is, n = 9), but the condition “at least n = 8” is satisfied. There is no hindrance.

  The magnets 25 and 26 are arranged so that different poles are alternately arranged in the vertical direction of the drawing. That is, the magnets 25 and 26 of the first substrate 22 are arranged in order of N pole, S pole, N pole, S pole,..., And similarly the magnets 25 and 26 of the second substrate 23 are also on the top. The N pole, S pole, N pole, S pole,..., And the magnets 25 and 26 of the third substrate 24 are also arranged in order from the top in the order of N pole, S pole, N pole, S pole,. Yes. For convenience of explanation, the magnet 25 is referred to as “N-pole magnet 25” and the magnet 26 is referred to as “S-pole magnet 26”.

  In FIG. 3B, an elastic sheet 27 made of rubber or the like is disposed under the first to third substrates 22 to 24, and the electronic substrate 28 faces the lower protrusion 27 a of the elastic sheet 27. A switch 29 is provided.

  On the other hand, on the first to third substrates 22 to 24, a key top 30 made of a transparent material having an upside down box shape is positioned, and a large number of horizontally long bowl-shaped lenses are formed on the surface of the key top 30. Arranged lenticular lenses 31 are attached. Further, inside the key top 30, a print panel 32 and a magnet pair 33 integrally attached to the lower surface of the print panel 32 are mounted. The print panel 32 and the magnet pair 33 are The inside of the key top 30 can be freely moved up and down. For convenience of explanation, one magnet 33a of the magnet pair 33 is referred to as “N-pole magnet 33a”, and the other magnet 33b is referred to as “S-pole magnet 33b”.

  The state shown in FIG. 3B is the same “first key display state” as in FIG. In this state, as shown in FIG. 3B, the N-pole magnet 25 of the first to third substrates 22 to 24 and the S-pole magnet 33b of the magnet pair 33 face each other, and the first to The S pole magnet 26 of the third substrates 22 to 24 and the N pole magnet 33a of the magnet pair 33 are opposed to each other. In other words, since it is “opposing different poles”, the print panel 32 and the magnet pair 33 are positioned at the “bottom” inside the key top 30 as shown in FIG. Will do.

  4A and 4B are diagrams showing the internal structure (second key display state) of the operation unit 13, where FIG. 4A is a sectional view taken along the line ZZ in FIG. 1, and FIG. 4B is a YY arrow in FIG. FIG. 3C is a sectional view taken along line XX in FIG. The state shown in FIG. 4B is the same as the “second key display state” as in FIG. In this state, the difference from the above-described FIG. 3 (first key display state) is that (A) the knob 16 slides downward in the drawing, and (B) first to third accompanying the slide. The substrates 22 to 24 are also moved downward in the drawing. (C) And, due to these differences (A) and (B), as shown in FIG. The N-pole magnet 25 of the substrates 22 to 24 and the N-pole magnet 33a of the magnet pair 33 face each other, and the S-pole magnet 26 of the first to third substrates 22 to 24 and the S-pole magnet of the magnet pair 33 33b will face. In other words, in the second key display state, since the same poles face each other, the repelling action of the magnetic poles causes the print panel 32 and the magnet pair 33 to be attached to the key top 30 as shown in FIG. It will be located on the “ceiling” inside.

  FIG. 5 is a diagram showing details of the printing panel 32 and the lenticular lens 31. First, as shown in FIGS. 4A to 4C, the print panel 32 is configured by combining two pieces of key display information. Specifically, the first key display information 34 (for convenience, the letter “a”) shown in FIG. 5B and the second key display information 35 (for convenience, “a” for convenience). A ″) is subdivided into strips in the vertical direction, and the sections are alternately combined to form the print panel 32. In practice, the print panel 32 can be formed by alternately printing, engraving, or pasting a sheet of the two key display information (first and second key display information 34, 35). In addition, the illustrated strip width is exaggerated and drawn wide for convenience of explanation. Needless to say, the width of the strip must be considerably narrowed in order to identify characters and the like.

  On the other hand, as described above, the lenticular lens 31 is formed by arranging a large number of horizontally long lenses 31a. More specifically, the lenticular lens 31 is an optical lens having a spherical cross section corresponding to a convex lens. Is equal to the interval β of two strips of the print panel 32 (that is, one strip pair of the first key information 34 and the second key information 35). Thus, as will be described in detail later, when the print panel 32 is viewed through the lenticular lens 31, two key display information on the print panel 32 depends on the difference in the distance between the lenticular lens 31 and the print panel 32. The first key display information 34 and the second key display information 35 can be distinguished and viewed.

<Viewing the first key display information 34 / opposite to the same pole>
FIG. 6 is a conceptual diagram when the first key display information 34 is viewed. In this figure, the N-pole magnet 25 of the first to third substrates 22 to 24 and the N-pole magnet 33a inside the key top 30 are opposed to each other, and S of the first to third substrates 22 to 24 is opposed. The polar magnet 26 and the S-pole magnet 33b inside the key top 30 are opposed to each other, that is, “the same poles are opposed to each other”. For this reason, the printing panel 32 and the magnet pair 33 are positioned on the “ceiling” inside the key top 30 due to the repulsive action of the magnetic poles.

  When the print panel 32 is viewed through the lenticular lens 31 on the key top 30 in this state, the angle of the line of sight 36 (angle formed with the surface of the key top 30) is adjusted to adjust the print panel 32. It is possible to find a predetermined angle at which one of the two pieces of key display information (here, “a” which is the first key display information 34) can be seen. This angle is an acute angle of 90 degrees or less, and is hereinafter referred to as a predetermined angle θ.

<View the second key display information 35 / opposite poles>
FIG. 7 is a conceptual diagram when the second key display information 35 is viewed. In this figure, the N-pole magnet 25 of the first to third substrates 22 to 24 and the S-pole magnet 33b inside the key top 30 are opposed to each other, and the S of the first to third substrates 22 to 24 is opposed. The polar magnet 26 and the N-pole magnet 33a inside the key top 30 are opposed to each other, that is, “opposing different poles”. For this reason, the print panel 32 and the magnet pair 33 are positioned at the “bottom” inside the key top 30 due to the magnetic pole attraction.

  In this state, the printing panel 32 is viewed through the lenticular lens 31 on the key top 30. The angle of the line of sight 36 at this time is also the same as when viewing the first key display information 34 described above.

  The difference from the case of viewing the first key display information 34 is in the positions of the print panel 32 and the magnet pair 33 inside the key top 30. That is, when viewing the first key display information 34, the print panel 32 and the magnet pair 33 are located on the “ceiling” inside the key top 30, but when viewing the second key display information 35, The difference is that the positions of the print panel 32 and the magnet pair 33 are “bottom” inside the key top 30.

  At these two positions (“ceiling” and “bottom”) of the print panel 32, if the angle of the line of sight 36 is the same θ, the print panel 32 is positioned at the “bottom” rather than the case where the print panel 32 is located at the “ceiling”. In this case, since the lenticular lens 31 is focused far away, the print panel 32 can be set by appropriately setting the arrangement interval α of the lenticular lenses 31 and the interval β of two strips of the print panel 32. The first key display information 34 and the second key display information 35 can be selectively visually recognized according to the two positions (“ceiling” and “bottom”). Two functions can be assigned.

  6 and 7, the “repulsive action” of the magnetic pole is used when viewing the first key information 34, and the “attraction action” of the magnetic pole is used when viewing the second key information 35. However, this is an explanatory convenience for clarifying the difference in focal length of the lenticular lens 31 at two positions (“ceiling” and “bottom”) of the printing panel 32. The reverse combination, that is, the “attraction action” of the magnetic pole (corresponding to FIG. 3) is used when viewing the first key information 34, and the “repulsion action” of the magnetic pole when viewing the second key information 35 (see FIG. (Equivalent to 4) may be used.

  Thus, in the present embodiment, one key can be given two functions. Thereby, it is possible to cope with multi-function with a small number of keys, and for example, it is possible to realize a key input device suitable for use in a remote controller such as a television or an operation unit of a mobile phone.

  In addition, in the present embodiment, a special effect is achieved in that no useless space is generated between the keys and the key input device is reduced in size. This is because, in the configuration of the present embodiment, the print panel 32 having two pieces of key information is placed “inside” one key top 30, and a wasteful space as described at the beginning (FIG. 11) is used. This is because it is not necessary to use the required large mask sheet 1. Therefore, in this embodiment, the distance between the keys can be made as close as possible, and the key tops 30 can be densely arranged. As described above, since the key input device according to the present embodiment can perform the dense arrangement of the key tops 30, it is possible to reduce the size of electronic devices such as a remote controller and a mobile phone including the key input device. We can provide useful technology that meets your needs.

  In the above embodiment, although there is an advantage that it is possible to provide a key input device that contributes to miniaturization of the keyboard by eliminating a useless space generated between the keys, the first key is detailed. There is a condition that the angle of the line of sight 36 when viewing the display information 34 and the second key display information 35 must be the same value (θ). This condition does not impair the achievement of the subject of the present invention (miniaturization of the keyboard), but the existence of such a condition is not preferable in terms of practicality.

  FIG. 8 is a diagram showing a first improved example. In this figure, the lens 31b is representatively shown as one of the laterally long rod-shaped lenses constituting the lenticular lens 31, but the cross section of the lens 31a is not spherical but has a radius (thickness from the center point) depending on the location. Are different from the above-described embodiment in that they are formed on different aspherical surfaces. For example, in the illustrated example, the thickness of the portion through which the line of sight 37 from the left side of the drawing passes is large, whereas the thickness of the portion through which the line of sight 38 from the right side of the drawing passes is small. This is because the two key display information (first and second) of the print panel 32 located on each of the “ceiling” and “bottom” inside the key top 30 when viewed from either the line of sight 37 or 38. This is a measure for distinguishing and viewing the key display information 34, 35). Of course, the cross-sectional shape of the illustrated lens 31a is merely an example for explanation. The appropriate cross-sectional shape is a design matter determined by the position of the print panel 32 (positions of “ceiling” and “bottom” inside the key top 30), the strip width of the print panel 32, the lens arrangement of the lenticular lens 31, and the like. .

  FIG. 9 is a diagram showing a second improved example. In this figure, a lens 31a is representatively shown as one of the horizontally elongated lenses constituting the lenticular lens 31, and this lens 31a has a spherical cross-sectional shape as in the above embodiment. The difference from the above embodiment is that a partial light shield 39 is attached to the surface of the lens 31a. The role of the light shielding body 39 is to prevent a peep from an angle other than an appropriate line-of-sight angle (angle θ of the line-of-sight 36 in the above embodiment). That is, by providing the light shielding body 39 at an appropriate portion (that is, a portion where it is desired to prevent peeping), only the line of sight 36 from the angle θ in the above embodiment can be allowed. Therefore, since the print panel 32 can be visually recognized only from this line of sight 36, selective visual recognition of the first key display information 34 and the second key display information 35 can always be performed stably.

  In addition, when "opposite opposite poles" of magnets occur, each other's magnets "contact", but in this case, depending on the strength of the magnetic force, a considerable force is required to pull away from the contact state. There is a case. That is, in the above-described embodiment, the state is changed from “opposing opposite poles” to “facing opposite poles” by sliding the knob 16 downward. "Force" may be required. Such “strong force” is not preferable because it impairs the operational feeling.

  FIG. 10 is a diagram illustrating a third improved example. In this figure, protrusions 30a and 30b are formed on the lower end of the key top 30 in the inward direction, and a magnet pair 33 is placed on the protrusions 30a and 30b. Now, when the magnet pair 33 and the magnets 25 and 26 of the first to third substrates 22 to 24 are in a state of “opposing opposite polarities”, the magnet pair 33 and the first to third substrates 22 are arranged. A separation distance corresponding to the thickness of the protrusions 30a and 30b is generated between the magnets 25 and 26. Therefore, both magnets are attracted by the distance and do not touch closely. For this reason, it is only necessary to apply a small force when changing the state from “opposing different poles” to “opposing opposite polarities”, and the operational feeling of the knob 16 is not impaired.

  In the above description, a remote controller such as a television or a mobile phone is used as an example, but the present invention is not limited to this. Any electronic device equipped with a key input device that assigns two functions to one key (ie, PDA, notebook computer, wearable personal computer, calculator, electronic dictionary, game console, etc.) Needless to say, it can be applied to (...). Needless to say, the electronic device is not limited to a portable type, and may be a stationary type. Furthermore, in the above description, “miniaturization” is used as a keyword. However, overlapping use of a single key is not only used for “miniaturization”, but may be used, for example, to prevent erroneous operation (for example, For example, a necessary key is displayed only in a specific operation mode), the scope of application of the present invention is not limited to the field intended for “miniaturization”.

  In the above description, “permanent magnets” are used for both the magnets 25 and 26 on the first to third substrates 22 to 24 and the magnet pair 33 inside the key top 30. It merely shows an example of a possible implementation. Any one using magnetic force may be used, and either one may be an “electromagnet”. For example, the magnets 25 and 26 on the first to third substrates 22 to 24 may be replaced with electromagnets mounted on the electronic substrate 28. In this case, the first to third substrates 22 to 24 can be omitted, and the print panel 32 and the magnet pair 33 inside the key top 30 can be simply replaced by changing the polarity of the electromagnet (changing the direction of the current flowing through the coil). Therefore, the electromagnet can also function as a moving unit, and the moving unit (the knob 16 and the plate 19) in the above-described embodiment is not necessary, so that the cost can be reduced.

  When an electromagnet is used, the other permanent magnet (the magnet pair 33 inside the key top 30 in the above example) can be eliminated. For example, instead of the magnet pair 33 inside the key top 30, a magnetic material such as iron is provided, the print panel 32 is mounted on the magnetic material, and the magnetic material is attached to the key top 30 by support means such as a spring. You may elastically support inside.

  In this way, while the electromagnet is off, the magnetic body (and the print panel 32) inside the key top 30 is in the first position by the support means (for example, the “ceiling” of the key top 30). On the other hand, when the electromagnet is turned on, it is attracted by the magnetic force of the electromagnet, and the magnetic body (and the print panel 32) inside the key top 30 resists the support force of the support means from the first position to the second position ( For example, since it moves to the “bottom” of the key top 30, the print panel 32 inside the key top 30 can be moved up and down in the same manner as in the above embodiment.

  Note that the “electromagnet” includes a magnetic actuator such as a so-called “solenoid” that generates a force to be pushed or pulled by using the magnetic force as a matter of course to generate a magnetic force by applying an electric current. . That is, if this solenoid is mounted on the electronic board 28, the print panel 32 inside the key top 30 can be directly moved up and down, so that the magnet pair 33 inside the key top 30 is unnecessary. In addition, moving means such as the knob 16 and the plate 19 can be eliminated.

16 Knob (moving means)
19 Plate (moving means)
25 Magnet (second magnet)
26 Magnet (second magnet)
30 Key top 30a Protrusion (spacer)
30b Protrusion (spacer)
31 Lenticular lens (optical lens)
31b Lens 32 Printing panel 33 Magnet pair (first magnet)
34 First key display information 35 Second key display information 39 Shading body

Claims (5)

A printing panel placed in a position-movable state inside a key top made of transparent material,
An optical lens located on the surface of the key top;
Moving means for changing the position of the print panel in the key top to either the first position or the second position;
The printing panel has first key display information and second key display information,
When the position of the print panel is changed by the moving means to either the first position or the second position, when the print panel is viewed through the optical lens at each position, the first position is changed. The first key display information and the second key display information are configured to be selectively visible ,
A first magnet movable with the printing panel;
A second magnet provided at a position facing the first magnet,
A first state in which the same polarity of the first magnet and the second magnet face each other by the moving means; and a second state in which the different polarities of the first magnet and the second magnet face each other. Select the first key display information and the second key display information when the print panel is viewed through the optical lens in the first state and the second state. And make it look like
Furthermore, when the different polarities of the first magnet and the second magnet are in a second state facing each other, a predetermined separation distance is secured between the first magnet and the second magnet. Having a spacer,
A key input device characterized by that.   2. The print panel according to claim 1, wherein the print panel includes a plurality of rows divided into strips, and the first key display information and the second key display information are alternately formed in each row. Key input device. The key input device according to claim 1 , wherein the optical lens includes a plurality of lenses having an irregular cross-sectional shape. The key input device according to claim 1 , wherein the optical lens has a light blocking member on a lens surface. An electronic apparatus characterized in that it is equipped with key input device according to any one of claims 1-4.

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