JP2021109030A - Nail part and rewriting apparatus for the same - Google Patents

Abstract

To use a nail part having an electronic display unit without processing it according to a shape of a nail and purchasing it in accordance with the size of the nail and without depending on the shape/size of a user's nail.SOLUTION: A nail part 1 can be worn to a human being or artificial nail N, and includes an electronic display unit 2 in which at least a portion of color can be changed when stimulation is imparted. The nail part 1 is worn partially to the nail N.SELECTED DRAWING: Figure 4

Description

The present invention relates to a nail part that is partially attached to a nail and a nail part rewriting device that gives a rewriting stimulus to the nail part.

In recent years, there have been proposed techniques for artificial nails (electronic nails) on which electronic display units such as electronic paper, LED displays, and organic EL displays can be appropriately changed in color and pattern (for example, Patent Document 1). ~ 3). In the artificial nail having an electronic display unit disclosed in Patent Documents 1 to 3, as shown in FIG. 1, the electronic display unit is provided in almost the entire area of the artificial nail.

Japanese Unexamined Patent Publication No. 2006-230436 Japanese Unexamined Patent Publication No. 2012-020035 Japanese Unexamined Patent Publication No. 2008-168062

However, although the artificial nail having the electronic display portion shown in Patent Documents 1 to 3 is attached to the entire nail, the size and shape of the fingernail are different for each person and for each finger, for example, FIG. 2 (a). As shown in FIG. 2B, there are a plurality of types of finished shapes of the tip of the nail. Therefore, when the user attaches the artificial nail to nails of various sizes and shapes, the outer shape of the artificial nail having an electronic display unit may be processed according to the size and shape of the user's nail, or It was troublesome because I had to measure the size of my nails and selectively purchase or make to order artificial nails that match the size.

Therefore, in view of the above circumstances, the present invention does not require processing according to the outer shape of the nail, processing according to the shape of the nail, or purchase according to the size of the nail, and the shape of the nail of the user. An object of the present invention is to provide nail parts having an electronic display unit that can be used regardless of size.

In order to solve the above problems, in one aspect of the present invention,
Nail parts that can be attached to human or artificial nails
It has an electronic display that can change at least some colors when stimulated.
The nail part provides a nail part that is partially attached to the nail.

According to one aspect, in a nail part having an electronic display part, it is used regardless of the shape and size of the user's nail without processing according to the shape of the nail or purchasing according to the size of the nail. can do.

Exploded view of artificial nails including conventional electronic paper. (A) Examples of various shapes of fingernails and (b) Examples of various shapes of nail tips. Explanatory drawing of the state which attaches the nail part which concerns on this invention. The explanatory view of the color change in the state which attached the nail part which concerns on 1st Embodiment of this invention. Sectional drawing of the nail part which concerns on 1st Embodiment of this invention. It is sectional drawing of an example of the electronic paper included in the nail part of FIG. The figure which shows various shapes of the nail part of this invention. Sectional drawing of the nail part which concerns on 2nd Embodiment. The external view of the rewriting apparatus for nail parts of this invention. A detailed block diagram of a nail part and a rewriting device for a nail part of the present invention. The schematic block diagram of the nail part and the rewriting device for a nail part of this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In each of the drawings below, the same components may be designated by the same reference numerals and duplicate description may be omitted.

The present invention relates to a nail part that is partially attached to a nail, particularly a nail part having an electronic display that can change at least a part of the color when a stimulus (rewriting stimulus) is applied. An example of an electronic paper as the electronic display unit is shown below, but the electronic display unit provided in the nail part of the present invention is an LED (Light Emitting Diode) display, an organic EL display, one or more LED lights, or the like. There may be.

The present invention also relates to a rewriting device for nail parts that stimulates the nail parts to change the color of at least a part of the electronic display unit.

<Overall configuration>
FIG. 3 is an explanatory view of a state in which the nail parts according to the embodiment of the present invention are attached.

As shown in FIG. 3, the nail parts of the present invention are partially attached to the nail N. Therefore, the nail part 1 having the electronic display unit 2 of the present invention can be attached to the user's nail N without customizing the size to match the nail N.

For example, the average size of a Japanese woman's nail is 1.44 cm long, 1.25 cm wide, the index finger 1.27 cm long, 0.93 cm wide, the middle finger 1.35 cm long, 0.98 cm wide, and the ring finger vertical. It is 1.35 cm wide and 0.89 cm wide, and the little finger is 1.11 cm long and 0.72 cm wide.

The nail parts of the present invention preferably have a size of about 30% to 50% in the vertical direction and about 30% to 50% in the horizontal direction with respect to the nail. For example, in the case of the nail part for the thumb of the present invention, the length is 0.43 cm to 0.72 cm, the width is 0.37 cm to 0.62 cm, and for the index finger, the length is 0.38 cm to 0.63 cm, and the width is 0.27 cm to 0. 46 cm, length 0.43 cm to 0.72 cm for middle finger 0.29 cm to 0.49 cm width, length 0.40 cm to 0.67 cm for medicine finger 0.26 cm to 0.44 cm width, length 0 for small finger It is about 33 cm to 0.55 cm, 0.21 cm to 0.36 cm in width. However, when this nail part is attached to an artificial nail, the size of the artificial nail may be significantly different from that of the human nail, and in that case, the suitable nail part size is different from the above.

From "Makiko Kawachi, 2012: AIST Japanese hand dimensional data. Https://unit.aist.go.jp/hiri/dhrg/ja/dhdb/hand/index.html"

FIG. 4 is an explanatory diagram of a change in color of the electronic display unit 2 in a state where the nail part 1 according to the first embodiment of the present invention is attached.

The nail part 1 according to the embodiment of the present invention has an electronic display unit 2, an electrode unit 3, and a protective unit 4. As shown in FIG. 4, the nail part 1 of the present invention is for nails that are partially attached to the nail N, like the pearl part P that resembles a pearl and the small metallic ball-shaped metal ball part M. This is an example of decorative parts.

The electronic display unit 2 is a layer in which at least a part of the color can be changed when a stimulus is applied. The electronic display unit 2 may be, for example, an electronic paper, an organic EL display, an LCD display, or the like. The configuration in which the electronic display unit 2 is an electronic paper (Electric-Paper Display (EPD)) will be described below.

The electrode unit 3 is a portion that receives a rewriting stimulus, for example, a change in electric potential, and when the electrode unit 3 receives a change in electric potential, the color of the electronic display unit 2 changes. The electrode portion 3 has two electrodes 31 and 32.

The protection unit 4 is a portion that surrounds at least the side surface of the electronic display unit 2 and protects it from water. As shown in FIG. 4, the outer shape of the protective portion 4 is also smaller than that of the nail to be attached.

In FIG. 4, (a) shows a state in which the electronic display unit 2 of the nail part 1 is the first color, and (b) shows a state in which the electronic display unit 2 is the second color. As shown in FIG. 4, an electronic display unit 2 that changes color is provided in most of the parts other than the edge portion of the nail part 1.

<First Embodiment>
FIG. 5 is a vertical cross-sectional view of the nail part 1 according to the first embodiment of the present invention.
In the present embodiment, the nail part 1 has an electronic paper 2, electrodes 31 and 32, and a resin 40 which is a protective portion 4.

In the present embodiment, the protection unit 4 is configured by molding the electronic paper (EPD) 2 which is an electronic display unit and the electrodes 31 and 32 with the resin 40.

FIG. 6 is a cross-sectional view showing the internal structure of the electronic paper 2.
As shown in FIG. 6, the electronic paper 2 includes an ink layer (display layer) 21, transparent electrode layers (front electrode layer, back electrode layer) 22, 23, and display protection layer (front protection layer, back protection layer). It has 24 and 25.

The ink layer 21 is a flexible sheet-like base material coated with transparent microcapsules containing particles of two colors charged in opposite directions and a fluid.

The transparent electrode layer is composed of a front side electrode layer 22 and a back side electrode layer (also referred to as a back side electrode) 23, and the front side electrode layer 22 and the back side electrode layer 23 are electrically connected to the electrodes 31 and 32, respectively. ing.

The display protection layers 24 and 25 are made of, for example, Polyethylene terephthalate (PET) and are layers that protect the transparent electrode layers 22 and 23. Therefore, the display protection layers 24 and 25 are composed of a front side protection layer 24 and a back side protection layer 25 on the outside of the transparent electrode layers 22 and 23. In this configuration, the display protection layers 24 and 25 are shown as the constituent elements of the electronic paper 2, but the display protection layers 24 and 25 use the electronic paper as a filter or the like separate from the electronic paper 2. It may be pasted and configured.

In the present embodiment, the protective portion 4 is molded with a transparent resin so as to cover almost all of the upper surface, the side surface, and the lower surface other than the electrodes 31 and 32. An adhesive layer (adhesive) (not shown) for attaching to the nail may be provided.

Although FIG. 4 shows an example in which the outer shape of the nail part 1 is a quadrangle with four corners chamfered, the nail part with an electronic display unit of the present invention is a plate part type nail part, and other nail parts are used. It may be in shape.

Further, in FIGS. 3 and 4, an example in which the nail part of the present invention is attached to a human fingernail has been described, but the nail part of the present invention is previously attached to an artificial nail, which is an artificial nail. It may be attached.

FIG. 7 is a diagram showing an example in which the nail parts of the present invention having various shapes are attached to the artificial nail AN. In FIG. 7, (a) shows an egg-shaped (oval) shape, and (b) shows a circular nail part 1. Although not shown, the shapes of the nail parts of the present invention include quadrangles, rounded quadrangles, polygons, polygons with chamfered corners, rounded polygons, and other specific shapes (heart, heart, etc.). Other shapes such as star shape, leaf shape, animal shape) may be used.

Although FIG. 3 shows an example in which one nail part 1 is provided on the nail, as shown in FIG. 7B, a plurality of nail parts 1 of the present invention are provided on the nail N or the artificial nail AN. -1, 1-2 may be provided. In this case, the color that changes in the electronic display unit may be the same for the plurality of two nail parts 1-1 and 1-2, or the color may be different for only one of them. Alternatively, the plurality of nail parts of the present invention provided on one nail may have different colors of change in the electronic display unit.

In FIGS. 4 and 7, small ball-shaped nail parts such as pearls and metal balls and a plate-shaped nail part 1 with an electronic display unit of the present invention are shown on a human nail or an artificial artificial nail. Although an example of combining with is shown, the nail parts of the present invention may be used alone on the nail. Alternatively, the nail parts of the present invention may be surrounded by commercially available frame parts or the like. Further, the nail parts of the present invention may be arranged on the nail in combination with a metal having a specific shape (heart or star shape), a shell nail part, a stone nail part, or the like.

<Second Embodiment>
Next, the second embodiment of the present invention will be described with reference to FIG. FIG. 8 is a cross-sectional view of the nail part according to the second embodiment.

As shown in FIG. 8, the nail part 1A includes an electronic paper 2, a protective sheet 5, a frame 6, and a back plate 7.

In the present embodiment, the protective unit 4 is configured by surrounding the electronic paper 2A, which is an electronic display unit, with a frame 6. Specifically, as shown in FIG. 8, the frame 6 serving as the protective portion in the present embodiment is different from the above-mentioned mold made of the resin 40 (resin mold), and is different from the electronic paper 2A and the side surface of the back plate 7 under the electronic paper 2A. It covers the whole and a part near the outer edge of the upper surface.

Therefore, the frame 6 has a frame shape and has a lower frame portion 61, an upper frame portion 62, and left and right frame portions (not shown). Further, on one side of the frame 6, for example, the lower frame portion 61, a hole portion (not shown) is formed so as to expose the electrodes 31 and 32.

Also in the present embodiment, as shown in FIG. 6, the electronic paper 2 includes an ink layer (display layer) 21, transparent electrode layers (front electrode layer, back electrode layer) 22, 23, and a display protection layer (front side). It has a protective layer and a back side protective layer) 24 and 25.

Further, in the present embodiment, the electronic paper 2 is supported by a separate back plate 7 on the lowermost surface of the electronic paper 2. Therefore, in the present embodiment, an adhesive layer for attaching to the nail may be provided on the lower surface of the back plate 7 which is the lowermost surface of the nail part 1A.

Further, in the nail part 1A of the present embodiment, since the protective sheet 5 on the upper side of the electronic paper 2A is exposed on the upper surface in the state of being attached to the nail, the protective sheet 5 is transparent and has waterproof performance. It is preferable to have.

When the frame 6 is a protective portion as in the present embodiment, the shape of the nail part 1A is defined by the shape of the frame 6. As for the shape of the frame, the frame is the same as the above-mentioned resin mold nail parts, such as a quadrangle, a quadrangle with chamfered corners, a circle, an oval, a leaf type, a specific character shape, a quadrangle, a rounded quadrangle, a polygon, It can be a polygon with chamfered corners, a polygon with rounded corners, or the like.

In any of the above embodiments, when the nail part having the electronic display unit of the present invention is used, the user does not need to process it according to the shape of the nail or purchase it according to the size of the nail. , It can be used as an example of plate type nail parts regardless of the shape and size of the user's nails.

In the present embodiment, an example in which the nail part is attached to a human fingernail has been described, but the nail part of the present invention may be attached to an artificial nail, which is an artificial nail, in advance. good.

Further, in the above example, the electrophoretic electronic paper has been described as the electronic display unit, but the electronic paper that can be mounted on the nail parts of the present invention may be of another type. For example, electrodeposit method, movable film method, electrochromic method, twist ball method, columnar twist method, powder transfer method, electrowetting method, thermal method, magnetophoresis method, etc. Alternatively, any electronic paper may be used as long as it is magnetically rewritable electronic paper. In the case of electronic paper in which each pixel is individually driven, it is preferable to provide a control unit that selectively drives each pixel.

Further, in the case of mounting an LED display, an organic EL display, or one or a plurality of LED lights as the electronic display unit in the nail part of the present invention instead of the electronic paper, electric power is always required, so that the nail part is small in size. It is preferable to provide a power source such as a battery or a solar power generation unit.

<Rewriting device for nail parts>
Next, with reference to FIGS. 9 and 10, a rewriting device for nail parts that stimulates the nail parts to change the color of at least a part of the electronic display unit will be described.

FIG. 9 is an external view of the nail parts rewriting device 9 of the present invention. FIG. 10 is a detailed block diagram of the nail part 1A and the nail part rewriting device 9 of the present invention.

The nail part rewriting device 9 is a color rewriting device (rewriting machine, color output device) that converts the color of the electronic paper 2 by applying an electric potential to the electrodes 31 and 32 of the nail part 1 (1A) of the present invention. ).

As shown in FIG. 9, the nail parts rewriting device (hereinafter, may be simply referred to as a rewriting device) 9 has a main body 90, two output terminals 91 and 92, and a control switch 93. There is. Further, as shown in FIG. 10, the rewriting device 9 further includes a battery 94 and a control board 95.

The main body 90 is a gripping portion that is gripped by the user during operation. The battery 94 and the control board 95 are provided inside the main body 90.

The two output terminals 91 and 92 are output electrode portions that come into contact with the two electrodes 31 and 32 of the nail part 1 (1A), and the first output terminal 91 and the second output terminal 92 have polarities. different.

The control switch (also referred to as a switch or a color change switch) 93 is a button provided on the main body 90 of the nail parts rewriting device 9. During the period when the control switch 93 is pressed, potentials of different polarities (positive and negative) are generated for the two output terminals 91 and 92.

The battery 94 supplies power to the control board 95. The control board 95 is appropriately supplied with electric power, and an electric field is applied to the output terminals 91 and 92 while the control switch 93 is pressed. Therefore, in a state where the two output terminals 91 and 92 are in contact with the two electrodes 31 and 32 of the nail part 1, the color of the electronic paper 2 changes while the control switch 93 is pressed.

Specifically, in the rewriting device 9, how the first output terminal 91 and the second output terminal 92 come into contact with the electrodes 31 and 32, more specifically, the first output terminal with respect to the electrode 31. The direction of color change is determined by which of the 91 and the second output terminal 92 comes into contact with each other.

For example, when the first output terminal 91 to which the polarity of "+" is applied comes into contact with the electrode 31 of the nail part 1, the transparent electrode (front electrode layer) 22 immediately below the ink layer 21 has the polarity of "+". In order to carry the ink layer 21, particles having a polarity of “−” move so as to be pulled downward. As a result, for example, the color of the upper surface of the electronic paper 2 becomes lighter.

On the contrary, when the second output terminal 92 to which the polarity of "-" is applied comes into contact with the electrode 31 of the nail part 1, the transparent electrode (back surface electrode, back side electrode layer) 23 takes on the polarity of "-". , The particles having the polarity of the color "+" in the ink layer 21 move so as to be pulled downward. As a result, for example, the color of the upper surface of the electronic paper 2 becomes darker.

Here, in the present embodiment, as shown in FIG. 10, since two electrodes are provided on the nail part 1 side and two electrodes are provided on the rewriting device 9 side, the two output terminals 91 of the output terminals are provided. By applying potentials of different polarities to the two electrodes 31 and 32 from 92 and simultaneously applying potentials to the front side electrode layer 22 and the back side electrode layer (back side electrode) 23, which are transparent electrode layers, the color can be changed in a short time. Can be done.

In either case, the user can change the color of the electronic display unit 2 of the nail part 1 by contacting the nail part rewriting device with the nail part 1 attached to the nail.

The potential output from the nail parts rewriting device 9 is very small, and even if the user's skin or nails accidentally touch the output terminals 91 and 92 during potential output, it will affect the human body. It shall not reach the extent.

<Other forms of rewriting device>
FIG. 11 is a schematic block diagram of a nail part 1B and a nail part rewriting device 9B according to another embodiment of the present invention.

In the above embodiment, the nail part rewriting device 9 directly applies power to the nail part 1 via the electrodes 31 and 32, but the nail part rewriting device 9B is the nail part 1 of the present invention. On the other hand, power may be applied by communication in a non-contact manner to control the change in the color of the electronic paper.

In the present embodiment, the nail part 1B has a communication unit 8 instead of the electrodes 31 and 32 to be contacted. The communication unit 8 is electrically connected to the front side electrode and the back side electrode (not shown), which are transparent electrodes of the electronic paper 2B, and gives a change in potential between the electrodes. The communication unit 8 is, for example, a receiving antenna, and the communication method may be wireless communication by short-range wireless communication (for example, UHF band, Bluetooth (registered trademark), etc.).

Further, in the present embodiment, the nail parts rewriting device 9B has a communication unit 96 instead of the output terminals 91 and 92 which are electrode terminals. Further, the nail parts rewriting device 9B has a control device 97. The control device 97 may be a control switch 93 operated by the user as shown in FIG. 12, or an automatic instruction in which information for automatically instructing a color change when the time comes is stored. It may be a device.

In the present embodiment, in the nail parts rewriting device 9B, a potential instruction is given from the control device 97 to the communication unit 96 via the control board 95B. The communication unit 96 is a transmission unit such as a transmission antenna, and gives a communication instruction to selectively apply a positive or negative potential to the communication unit 8 of the nail part 1B.

In the above description, the communication method for instructing the color change is wireless communication by short-range wireless communication, but quasi-electrostatic field communication and human body communication (electric field coupling, capacitance coupling, IR (infrared infrared)). ) Modulation method) may be used to exchange color information.

In any of the present embodiments, the user operates the nail part rewriting device with the nail part 1B attached to the nail, or automatically gives an instruction to the electronic display unit (electronic) of the nail part 1B. Paper) The color of 2B can be changed.

Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-mentioned specific embodiments, and various aspects are within the scope of the gist of the present invention described in the claims. It can be transformed and changed.

1,1A, 1B Nail parts 2 Electronic display (electronic paper, EPD)
21 Ink layer (display layer)
22 Transparent electrode layer (front electrode layer)
23 Transparent electrode layer (back side electrode layer)
24 Display protection layer (front side protection layer, PET layer)
25 Display protection layer (back side protection layer, PET layer)
3 Electrode 4 Protective unit 40 Resin mold 5 Protective sheet 6 Frame 7 Back plate 8 Communication unit 9,9B Rewriting device for nail parts (rewriting device, output device)
91 Output terminals (output terminals and electrodes to which + polarity is applied)
92 Output terminals (output terminals and electrodes to which -polarity is applied)
93 Control switch (color change switch)
94 Battery 95,96B Control board 96 Communication part A Upper paper layer B Lower paper layer C Contact part N Human nail AN False nail

Claims (11)

Nail parts that can be attached to human or artificial nails
It has an electronic display that can change at least some colors when stimulated.
The nail part is a nail part that is partially attached to the nail. It is provided with a protective part that surrounds at least the side surface of the electronic display part and protects it from water.
The nail part according to claim 1, wherein the outer shape of the protective portion is smaller than that of the nail. The nail part according to claim 2, wherein the protective portion is formed by molding the electronic display portion with a resin. The nail part according to claim 2, wherein the protective unit is formed by surrounding the electronic display unit with a frame. The electronic display unit is an electronic paper.
The nail part according to any one of claims 2 to 4. A rewriting device for nail parts that gives a writing stimulus to the nail parts according to any one of claims 1 to 5.
A transmission unit capable of communicating with the communication unit of the nail part is provided.
A rewriting device for nail parts whose display unit is changed by transmitting a rewriting stimulus to the communication unit of the nail parts. An electrode part that receives changes in electric potential is provided, and
The nail part according to claim 5, wherein at least a part of the color of the electronic paper can be changed when the electrode portion receives a change in the electric potential. The nail part according to claim 7, wherein a part of the upper surface of the protective portion is opened and the electrode portion is exposed. The electrode portion has two electrodes and has two electrodes.
The electronic paper is
At least the back side electrode layer, the ink layer, and the transparent electrode layer are laminated from the lower surface side.
Inside the ink layer, two-color particles are housed together with the liquid in a plurality of microcapsules, and the particles move in the liquid by an electric field generated between the electrodes of the back side electrode layer and the transparent electrode layer. Therefore, the color is selected, and the two electrodes are electrically connected to the transparent electrode layer and the back side electrode layer.
The nail part according to claim 7 or 8. A rewriting device for nail parts that gives a writing stimulus to the nail parts according to any one of claims 7 to 9.
An output terminal that comes into contact with the electrode portion of the nail part is provided.
A rewriting device for nail parts in which the direction of color change is determined by the polarity of the output terminal with respect to the electrode portion of the nail part. The nail parts rewriting device has a first output terminal and a second output terminal having different polarities as the output terminal.
In the nail part, a part of the upper surface of the protective portion is opened, and two electrode portions that can come into contact with the two output terminals of the nail part rewriting device are exposed.
The electronic paper of the nail part has at least a back surface electrode layer, an ink layer, and a transparent electrode layer laminated from the bottom surface side.
Of the two electrode portions, one is a bottom surface connection electrode that is electrically connected to the back surface electrode layer of the electronic display unit.
The rewriting device for nail parts according to claim 10, wherein the direction of color change is determined depending on which of the first output terminal and the second output terminal contacts the bottom surface connecting electrode.

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