JP4011644B2 - Display board structure for solar clock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solar timepiece display plate structure in which a solar cell using light as energy is used as a timepiece dial.
[0002]
[Prior art]
Conventionally, solar cells have been used as power sources for watches, calculators, portable radios, and the like. This solar cell is usually formed of amorphous silicon or the like and converts light energy into electric energy, and it is necessary to dispose it at a position where light hits, that is, a surface position directly visible from the outside.
[0003]
9 and 10, when the solar cell is used for the display panel structure of a wristwatch, four fan-shaped solar cells 32 and an insulating band 33 are formed on the upper surface of the watch module 31 in plan view. (The solar cells are connected in series in order to obtain voltage.) A transparent plate 34 of transparent polycarbonate or acrylic resin (on this surface, such as cuts, pet names, etc.) The printing and time characters are fixed.)
[0004]
However, in the solar clock display board structure as described above, since the solar cell 32 is usually brown or dark blue, the display board has the above-mentioned color, and the solar cell 32 and the solar cell 32 are insulated. Since the band 33 is present, the insulating band 33 appears as a crosshair, and the design including the color tone is not only greatly limited, but also the merchantability is poor.
[0005]
On the other hand, a timepiece or the like in which an interference filter or the like is provided on the front surface of the solar cell so that the solar cell cannot be directly seen has been proposed. There was a problem that the appearance quality as a dial was poor.
[0006]
In order to solve such a problem, for example, Japanese Patent Publication No. 5-38464 discloses a solar cell and a color that is provided in front of the solar cell and transmits light in a wavelength region that contributes to power generation of the solar cell. A colored solar cell having a filter, and a color diffusion layer that is provided between the solar cell and the color filter and includes a scattering layer that transmits part of the light transmitted by the color filter and scatters the rest in all directions It is disclosed.
[0007]
And when the scattering layer is a white diffuser, an acrylic milky white plate, a half mirror with a matte clear lacquer applied, a mirror made of aluminum or the like on the opposite side of glass or plastic roughened on one side It is shown that things are used.
[0008]
[Problems to be solved by the invention]
However, in the above prior art, the acrylic milky white plate is preferred as a display plate for a wristwatch, and it has not been possible to obtain a metal color tone that can give a high-class feeling. Also, for the half mirror with a matte clear lacquer applied, or with a mirror made of aluminum or the like on the opposite side of glass or plastic with one side roughened, the transmittance varies due to the non-uniform thickness. There was a problem that unevenness occurred. Further, any of the above-described materials has a problem that the appearance quality as a dial of a watch is inferior.
[0009]
The present invention has been made paying attention to the above-mentioned problems, and the object of the present invention is to greatly expand design variations including high-quality patterns and color tones (subtle shades). In addition, an object is to provide a display structure for a solar watch that contributes to improving the product quality by improving the appearance quality.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a solar timepiece display plate structure according to the invention of claim 1 is a solar timepiece display plate structure provided on the front side of a solar cell, and the solar timepiece mounted on the surface of the solar cell. Clock display board But , A colored translucent substrate that transmits light, a pattern layer that is provided on the front side of the colored translucent substrate, diffuses light, and light that is provided on the back side of the colored translucent substrate and is incident on the colored translucent substrate Part of the light is transmitted and the rest is reflected Thickness of 500mm to 5000mm It is characterized by comprising a colored thin film layer.
[0011]
With this configuration, out of light incident on the colored translucent substrate, light in a wavelength range of a system different from the color of the colored translucent substrate is absorbed by the colored translucent substrate. Part of the light in the same wavelength range as the color of the colored translucent substrate passes through the colored thin film layer to reach the solar cell, contributes to the power generation of the solar cell, and the rest is reflected toward the surface. This is because the colored thin film layer is an extremely thin thin film, so that part of light is transmitted and the rest is reflected.
[0012]
The light reflected by the colored thin film layer is directional and non-uniform, but the pigment or dye and the pattern layer mixed in the colored translucent substrate diffuse the light and reach the eyes of the observer. Thus, the observer can visually recognize the entire surface of the colored translucent substrate with the subtle hue that combines the colors of the colored thin film layers based on the color of the colored translucent substrate uniformly. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0013]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0014]
In order to achieve the above object, the solar timepiece display plate structure according to the invention of claim 2 is the solar timepiece display plate structure according to claim 1, wherein the colored thin film layer is a metal vapor deposition layer.
[0015]
With this configuration, out of light incident on the colored translucent substrate, light in a wavelength range of a system different from the color of the colored translucent substrate is absorbed by the colored translucent substrate. A part of the light in the same wavelength range as the color of the colored translucent substrate passes through the metal deposition layer to reach the solar cell, contributes to the power generation of the solar cell, and the rest is reflected toward the surface. This is because the metal vapor deposition layer is a very thin thin film, so that a part of light is transmitted and the rest is reflected.
[0016]
The light reflected by the metal deposition layer is directional and non-uniform, but the pigment or dye and the pattern layer mixed in the colored translucent substrate diffuse the light and reach the eyes of the observer. Thus, the observer can visually recognize the entire surface of the colored translucent substrate with a subtle hue that combines the colors of the metal deposition layers based on the color of the colored translucent substrate uniformly. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0017]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0018]
In order to achieve the above object, a solar timepiece display plate structure according to the invention of claim 3 is mounted on the surface of the solar cell in the solar timepiece display plate structure provided on the front side of the solar cell. Solar clock display board But A transparent substrate through which light is transmitted, a pattern layer provided on the front side of the transparent substrate, for diffusing light, and provided on the back side of the transparent substrate. Minute irregularities A diffusion layer, and provided in the diffusion layer Thickness of 500mm to 5000mm Of the light incident on the transparent substrate, a part of the light is transmitted through the diffusion layer and the colored thin film layer, and the remaining light is transmitted through the diffusion layer and the colored thin film layer. A display structure for a solar watch, which is diffusely reflected.
[0019]
With this configuration, a part of the light incident on the transparent substrate passes through the diffusion layer and the colored thin film layer to reach the solar cell and contributes to the power generation of the solar cell, and the remaining light is the back surface of the transparent substrate. Are diffused and reflected toward the surface by the diffusion layer and the colored thin film layer. This is because the colored thin film layer is an extremely thin thin film, so that part of light is transmitted and the rest is reflected. The light diffusely reflected by the diffusion layer and the colored thin film layer is directional and non-uniform, but is further diffused (scattered) by the pattern layer formed on the surface of the transparent substrate. The entire surface of the transparent substrate is visually recognized with the color of the colored thin film layer and the pattern layer. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0020]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0021]
In order to achieve the above object, the display structure for a solar timepiece according to the invention of claim 4 is the display structure for a solar timepiece according to claim 3, wherein the transparent substrate, the pattern layer, and the diffusion layer are used. And were integrally molded.
[0022]
With this configuration, not only can the same effect as that of the invention of claim 3 described above be obtained, but also the pattern layer is formed by, for example, piage cutting, by integrally forming the transparent substrate, the pattern layer, and the diffusion layer. It becomes possible to form with patterns such as Asahikari, and design variations including high-quality patterns and colors are greatly expanded to improve the appearance quality and contribute to the improvement of merchantability.
[0023]
In order to achieve the above object, a display structure for a solar timepiece according to a fifth aspect of the present invention is the display structure for a solar timepiece according to the third or fourth aspect, wherein the colored thin film layer is formed by metal vapor deposition. Is a layer.
[0024]
With this configuration, a part of the light incident on the transparent substrate passes through the diffusion layer and the metal deposition layer and reaches the solar cell, which contributes to the power generation of the solar cell, and the remaining light is the back surface of the transparent substrate. Are diffused and reflected toward the surface by the diffusion layer and the metal deposition layer. This is because the metal vapor deposition layer is a very thin thin film, so that a part of light is transmitted and the rest is reflected. The light diffusely reflected by the diffusion layer and the metal vapor deposition layer is directional and non-uniform, but is further diffused (scattered) by the pattern layer formed on the surface of the transparent substrate. The entire surface of the transparent substrate is visually recognized as well as the pattern layer together with the color of the metal deposition layer. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0025]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments (examples) of the present invention will be described in detail with reference to the drawings.
[0027]
(First embodiment)
A display structure for a solar timepiece according to the present invention (first embodiment) is shown in FIGS. FIG. 1 is a longitudinal sectional view of a wristwatch provided with a display structure for a solar timepiece according to the present invention (first embodiment), and FIG. 2 is a structural explanation of a display structure for a solar timepiece according to the present invention (first embodiment). 3 is a plan view of the solar watch display board structure, FIG. 4 is a cross-sectional view of the solar watch display board partly omitted, and FIG. 5 is the solar watch display board. It is explanatory drawing of incoming and outgoing light.
[0028]
As shown in FIG. 1, the wristwatch 1 is provided with a module 4 in the outer body 2 through a support frame 3 made of synthetic resin, and a display panel structure A for a solar timepiece is formed on the front side of the module 4. A needle shaft 5 of a double shaft configuration provided in the center is passed through the central dial A1 of the timepiece dial structure A, and an hour hand 6 is provided on the outer shaft 5a of the hand shaft 5 and a minute hand 7 is provided on the inner shaft 5b. Each is attached, and a back cover 9 is mounted on the bottom side of the outer cylinder 2 via a waterproof packing 8, and a windshield glass 10 is mounted on the front side of the outer cylinder 2.
[0029]
As shown in FIG. 2, the solar watch display plate structure A includes a solar cell 11 fixed to the front side of the module 4 and a solar watch display plate 12 provided on the front side of the solar cell 11. It is configured. This solar watch display plate 12 is a colored translucent substrate 13, a patterned layer 14 provided on the front side of the colored translucent substrate 13, and a colored thin film layer deposited on the back side of the colored translucent substrate 13. The metal vapor deposition layer 15 is comprised. A time character 20 is fixed on the surface of the pattern layer 14 by adhesion or formed by printing.
[0030]
The solar cell 11 has a fan shape in plan view, similar to that shown in FIG. 9 of the conventional example, and the solar cells 11 are arranged with four insulating bands sandwiched therebetween. The colored translucent substrate 13 is a colored substrate formed by injection molding using pellets when a transparent substrate is molded using transparent polycarbonate or acrylic resin as a raw material, and various pigments or dyes are mixed into the raw material. It is a thing.
[0031]
The metal deposition layer 15 is a colored thin film layer having a thickness of about 500 to 5000 mm. It is known that thin films having various colors can be obtained by depositing various kinds of metals (Au, Cr, Al, Pt, Ni, Pd, Rh, etc.). The metal vapor deposition layer 15 is also formed as a thin film having various color tones according to a known production method. And the metal vapor deposition layer 15 is a single layer film | membrane which vapor-deposited 1 type of metal. The metal vapor deposition layer 15 has a more appropriate thickness of 2500 to 3500 mm and an optimum thickness of 2000 to 3000 mm. In particular, when the metal vapor deposition film 15 is a Cr vapor deposition layer, the color tone is gray and light transmittance of 50% or more can be secured in the wavelength region of 500 nm.
[0032]
The light transmittance is generally obtained from the amount of power generated by the solar cell by the light transmitted through the dial for the solar cell timepiece. That is, in a device that prevents external light from entering, light is applied to a solar cell placed at a certain distance from the light source, and the current value when converted from light energy to electrical energy is Ao, and the solar cell A dial for a solar cell watch is placed on top, and the current value measured in the same manner as above is A ₁ A ₁ Is expressed as a percentage of Ao. And it has been confirmed that if the light transmittance in the display panel structure A for solar timepiece is 50% or more, power can be generated without any trouble in carrying it to a normal wrist.
[0033]
Next, the operation of the solar watch display plate structure A configured as described above will be described. As described in the prior art, since the solar cell 11 is usually brown or dark blue, the display board is brown or dark blue, and there is an insulation band between the solar cell 11 and the solar cell 11. In addition, this insulation band appears as a crosshair, but by securing a subtle hue between the colored translucent substrate 13 and the metal deposition layer 15 which is a colored thin film layer, the brown or dark blue solar cell 11 and the insulation band Hide the crosshairs.
[0034]
As shown in FIG. 5, out of the light a incident on the colored translucent substrate 13, light in a wavelength range of a system different from the color of the colored translucent substrate 13 is absorbed by the colored translucent substrate 13. Part of the light in the same wavelength range as the color of the colored translucent substrate 13 passes through the metal vapor deposition layer 15 to reach the solar cell 11 and contributes to the power generation of the solar cell 11, and the rest toward the surface. Reflected. This is because the metal vapor-deposited layer 15 is a very thin thin film, so that a part of light is transmitted and the rest is reflected. In the metal vapor deposition layer 15 as well, a very small amount of the light transmitted through the colored translucent substrate 13 is absorbed.
[0035]
The light b reflected by the metal vapor deposition layer 15 is directional and non-uniform, but the pigment or dye mixed with the colored translucent substrate 13 and the pattern layer 14 diffuse the light b, so that the eyes of the observer. Reach. Therefore, the observer can visually recognize the entire surface of the colored translucent substrate 13 with the subtle color combination of the color of the metal deposition layer 15 based on the color of the colored translucent substrate 13 uniformly. Is done. For this reason, the brown-brown or dark blue solar cell 11 and the crosshair of the insulation band are not seen through.
[0036]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0037]
The colored thin film layer is not necessarily formed by metal vapor deposition, and may be formed by dry plating such as ion plating or sputtering.
[0038]
(Second embodiment)
A display structure for a solar timepiece according to the present invention (second embodiment) is shown in FIGS. 6 is a longitudinal sectional view of a solar watch display plate structure (second embodiment) according to the present invention, FIG. 7 is a sectional view of the solar watch display plate structure with a part omitted, and FIG. FIG. 4 is an explanatory view of incoming and outgoing light of the solar timepiece display panel.
[0039]
In the solar watch display plate structure A in the second embodiment, the solar watch display plate 12 includes a transparent substrate 16, a pattern layer 17 provided on the front side of the transparent substrate 16, and a back side of the transparent substrate 16. The diffusion layer 18 is formed and a metal deposition layer 19 which is a colored thin film layer deposited on the diffusion layer 18.
[0040]
The solar cell 11 is placed on the front side of the module 4, and the solar timepiece display plate 12 is placed on the surface of the solar cell 11 with the pattern layer 17 facing the front side. In the pattern layer 17, as in the first embodiment, the time character 20 is fixed on the front side by adhesion or provided by printing.
[0041]
The transparent substrate 16 is formed by an injection molding process, and the mold includes a pattern mold portion for forming pattern irregularities of the pattern layer 17 and an uneven mold portion for forming random minute irregularities of the diffusion layer 18. Therefore, when the transparent substrate 16 is molded by injection molding, a pattern layer 17 is formed on the surface thereof, and a diffusion layer 18 is formed on the back side thereof. And this pattern layer 17 is formed, for example by patterns, such as a pierge cut and Asahikari.
[0042]
Further, the metal vapor deposition layer 19 is a colored thin film layer having a thickness of about 500 to 5000 mm as in the case of the first embodiment. It is known that thin films having various colors can be obtained by depositing various kinds of metals (Au, Cr, Al, Pt, Ni, Pd, Rh, etc.). The metal vapor deposition layer 19 is also formed as a thin film having various colors according to a known production method. And the metal vapor deposition layer 19 is a single layer film | membrane which vapor-deposited 1 type of metal. The metal vapor deposition layer 19 has a more appropriate thickness of 2500 to 3500 mm and an optimum thickness of 2000 to 3000 mm. In particular, in the case of a Cr vapor deposition layer, the color tone is gray and light transmittance of 50% or more can be ensured in the wavelength region of 500 nm.
[0043]
Next, the operation of the solar watch display panel structure A in the second embodiment configured as described above will be described.
[0044]
As shown in FIG. 8, some of the light incident on the transparent substrate 16 passes through the diffusion layer 18 and the metal vapor deposition layer 19 to reach the solar cell 11, and contributes to power generation of the solar cell 11. The remaining light is diffusely reflected toward the front surface by the diffusion layer 18 and the metal vapor deposition layer 19 formed on the back surface of the transparent substrate 16. This is because the metal vapor-deposited layer 19 is a very thin thin film, so that a part of light is transmitted and the rest is reflected. The light b diffused and reflected by the diffusion layer 18 and the metal vapor deposition layer 19 is directional and non-uniform, but is further diffused (scattered) by the pattern layer 17 formed on the surface of the transparent substrate 16. The observer can visually recognize the entire surface of the transparent substrate 16 and the pattern layer 17 together with the color of the metal deposition layer 19, that is, the metal color. For this reason, the brown-brown or dark blue solar cell 11 and the crosshair of the insulation band are not seen through. In addition, in the metal vapor deposition layer 19, very little light is absorbed among the transmitted light.
[0045]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0046]
The colored thin film layer is not necessarily formed by metal vapor deposition, and may be formed by dry plating such as ion plating or sputtering.
[0047]
【The invention's effect】
As described above, according to the display structure for a solar timepiece according to the first aspect of the present invention, light is transmitted through the display panel for the solar timepiece in the display structure for the solar timepiece provided on the front side of the solar cell. Light that is incident on the colored translucent substrate by comprising a colored translucent substrate, a patterned layer provided on the front side of the colored translucent substrate, and a colored thin film layer provided on the back side of the colored translucent substrate Among them, light in a wavelength range of a system different from the color of the colored translucent substrate is absorbed by the colored translucent substrate. A part of the light in the same wavelength range as the color of the colored translucent substrate passes through the colored thin film layer to reach the solar cell, contributes to the power generation of the solar cell, and the rest is reflected toward the surface. This is because the colored thin film layer is an extremely thin thin film, so that part of light is transmitted and the rest is reflected.
[0048]
The light reflected by the colored thin film layer is directional and non-uniform, but the pigment or dye and the pattern layer mixed in the colored translucent substrate diffuse the light and reach the eyes of the observer. Thus, the observer can visually recognize the entire surface of the colored translucent substrate with a subtle hue that combines the colors of the colored thin film layers based on the color of the colored translucent substrate uniformly. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0049]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0050]
Further, according to the display structure for a solar timepiece according to the invention of claim 2, in the display structure for the solar timepiece according to claim 1, the colored thin film layer is a metal vapor-deposited layer. Of the incident light, light in a wavelength range different from the color of the colored translucent substrate is absorbed by the colored translucent substrate. A part of the light in the same wavelength range as the color of the colored translucent substrate passes through the metal deposition layer to reach the solar cell, contributes to the power generation of the solar cell, and the rest is reflected toward the surface. This is because the metal vapor deposition layer is a very thin thin film, so that a part of light is transmitted and the rest is reflected.
[0051]
The light reflected by the metal deposition layer is directional and non-uniform, but the pigment or dye and the pattern layer mixed in the colored translucent substrate diffuse the light and reach the eyes of the observer. Thus, the observer can visually recognize the entire surface of the colored translucent substrate with a subtle hue that combines the colors of the metal deposition layers based on the color of the colored translucent substrate uniformly. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0052]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0053]
In addition, according to the solar watch display plate structure according to the invention of claim 3, in the solar watch display plate structure provided on the front side of the solar cell, the solar watch display plate, the transparent substrate through which light is transmitted, and By comprising the pattern layer provided on the front side of the transparent substrate, the diffusion layer provided on the back side of the transparent substrate, and the colored thin film layer provided on the diffusion layer, the light incident on the transparent substrate Among them, a part of the light passes through the diffusion layer and the colored thin film layer to reach the solar cell, contributes to the power generation of the solar cell, and the remaining light is formed on the back surface of the transparent substrate and the colored thin film layer. Is diffusely reflected toward the surface. This is because the colored thin film layer is an extremely thin thin film, so that part of light is transmitted and the rest is reflected. The light diffusely reflected by the diffusion layer and the colored thin film layer is directional and non-uniform, but is further diffused (scattered) by the pattern layer formed on the surface of the transparent substrate. The entire surface of the transparent substrate is visually recognized with the color of the colored thin film layer and the pattern layer. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0054]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[0055]
Moreover, according to the display structure for a solar timepiece according to the invention of claim 4, in the display structure for a solar timepiece according to claim 3, the transparent substrate, the pattern layer, and the diffusion layer are integrally formed. Thus, not only can the same effect as that of the invention of claim 3 described above be obtained, but also the pattern layer can be formed by integrally molding the transparent substrate, the pattern layer, and the diffusion layer, for example, Piage Cut, Asahi Light, etc. As a result, the design variations including high-quality patterns and colors are greatly expanded, the appearance quality is improved, and the product quality is enhanced.
[0056]
Moreover, according to the display structure for a solar timepiece according to the invention of claim 5, in the display structure for a solar timepiece according to claim 3 or claim 4, the colored thin film layer is a metal vapor deposition layer, Of the light incident on the substrate, part of the light passes through the diffusion layer and the metal deposition layer and reaches the solar cell, contributing to the power generation of the solar cell, and the remaining light formed on the back surface of the transparent substrate It is diffusely reflected toward the surface by the layer and the metal deposition layer. This is because the metal vapor deposition layer is a very thin thin film, so that a part of light is transmitted and the rest is reflected. The light diffusely reflected by the diffusion layer and the metal vapor deposition layer is directional and non-uniform, but is further diffused (scattered) by the pattern layer formed on the surface of the transparent substrate. The entire surface of the transparent substrate is visually recognized as well as the pattern layer together with the color of the metal deposition layer. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.
[0057]
For this reason, the design can be diversified and the same design expression as a normal display board is made possible. Not only the design variations including high-quality patterns and colors are greatly expanded, but also subtle hues. Can improve the quality of appearance and contribute to the improvement of merchantability.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a wristwatch provided with a display structure for a solar timepiece according to the present invention (first embodiment).
FIG. 2 is a structural explanatory view of a display structure for a solar timepiece according to the present invention (first embodiment).
FIG. 3 is a plan view of the display structure for the solar timepiece.
FIG. 4 is a cross-sectional view in which a part of a solar timepiece display plate is omitted in the solar timepiece display plate structure.
FIG. 5 is an explanatory view of incoming and outgoing light of the solar timepiece display plate.
FIG. 6 is a longitudinal sectional view of a display structure for a solar timepiece (second embodiment) according to the present invention.
FIG. 7 is a cross-sectional view in which a part of a solar timepiece display plate is omitted in the solar timepiece display plate structure;
FIG. 8 is an explanatory diagram of incoming and outgoing light in the solar timepiece display panel structure.
FIG. 9 is a plan view of a wristwatch having a display panel structure for a conventional solar timepiece.
FIG. 10 is a diagram illustrating the structure of a conventional solar watch display panel structure.
[Explanation of symbols]
11 Solar cell
12 Display for solar clock
13 Colored translucent substrate
14 Pattern layer
15 Metal deposition layer (colored thin film layer)

Claims (5)

In solar timepiece display panel structure provided on the front side of the solar cell, the solar timepiece display plate placed on the surface of the solar cell, a colored translucent substrate through which light is transmitted, the front side of the colored translucent substrate A thickness of 500 to 5000 mm that is provided and diffuses light and is provided on the back side of the colored translucent substrate and transmits part of the light incident on the colored translucent substrate and reflects the rest A display panel structure for a solar watch, characterized by comprising a colored thin film layer.   The display structure for a solar timepiece according to claim 1, wherein the colored thin film layer is a metal vapor deposition layer. In solar timepiece display panel structure provided on the front side of the solar cell, the solar timepiece display plate placed on the surface of the solar cell, a transparent substrate through which light is transmitted, is provided on the front side of the transparent substrate, light A pattern layer for diffusing, a minute uneven diffusion layer provided on the back side of the transparent substrate, and a colored thin film layer having a thickness of 500 mm to 5000 mm provided on the diffusion layer, and is incident on the transparent substrate A display panel for a solar timepiece, wherein a part of the light is transmitted through the diffusion layer and the colored thin film layer, and the remaining light is diffusely reflected by the diffusion layer and the colored thin film layer Construction.   The display panel structure for a solar timepiece according to claim 3, wherein the transparent substrate, the pattern layer, and the diffusion layer are integrally formed.   The display panel structure for a solar timepiece according to claim 3 or 4, wherein the colored thin film layer is a metal vapor deposition layer.

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