JP2005324517A - Decorative device and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative device which can increase power generation amount of a solar battery and can secure a wider light emitting area and a larger light emitting amount, and electronic equipment equipped with the decorative device. <P>SOLUTION: The decorative device is equipped with a light-transmissive dye-sensitized solar cell 11 with a pair of a light-transmissive substrates (e.g. an upper plate glass g1 and a lower plate glass g2) and a dye-sensitized solar cell element 11a arranged in an area of the pair of light-transmissive substrates, an EL light emitting element 12 which is arranged on the opposite side of a solar light incidence plane side of the dye-sensitized solar cell and irradiates light on the dye-sensitized solar cell, and a decorative part 13 provided to at least one of the pair of the light-transmissive substrates. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a decoration device applied to various electronic devices such as a wristwatch and a mobile phone, and an electronic device including the decoration device.

Conventionally, a wristwatch with a pointer provided with a solar cell is known (for example, refer to Patent Document 1).
In the wristwatch with a pointer described in Patent Document 1, for example, a solar cell and an EL light emitting layer are arranged on the same surface on the lower surface of a dial. And by making the EL light emitting layer emit light, it is possible to visually recognize characters on the dial plate even in a dark place.

Also, a pointer for indicating the time, a light guide plate which is a light-transmitting decorative plate disposed under the pointer and having an uneven portion formed on the lower surface, and a guide plate disposed below the light guide plate. A wristwatch including a solar cell element provided and a light emitting element disposed on a side portion of the light guide plate is also known (see, for example, Patent Document 2).
The light emitted by the light emitting element is diffused and reflected by the concave and convex portions of the light guide plate while being guided into the light guide plate, and is emitted from the upper surface of the light guide plate, so that the light guide plate can emit light. Thus, the light guide plate and the pointer are visible in a dark place.
JP-A-11-52068 JP 2004-53380 A

However, in the wristwatch with a pointer described in Patent Document 1, since the solar cell and the EL light emitting layer are arranged on the same surface, the light receiving area of the solar cell is limited due to the size problem of the wristwatch with the pointer. There was a problem that the amount could not be increased.
Similarly, since the light emitting area of the EL light emitting layer is also limited, there is a problem in that it is difficult to secure a sufficient light emitting amount for visually recognizing decorations such as time letters on the dial and pointers.

  Moreover, in the wristwatch described in Patent Document 2, a part of the external light incident on the wristwatch is scattered by the uneven portion of the light guide plate, so that the power generation amount of the solar cell is reduced. there were.

  Accordingly, an object of the present invention is to provide a decoration device capable of increasing a power generation amount of a solar cell and securing a wider light emission area and a larger light emission amount, and an electronic device including the decoration device. is there.

In order to solve the above problem, the invention according to claim 1 is a decorative device,
A pair of light transmission substrates (for example, upper glass plate g1 and lower glass plate g2 in FIGS. 3 and 21 and upper glass plate g3 and lower glass plate g4 in FIG. 24) and a dye increase disposed in a region between the pair of light transmission substrates. Light-transmitting properties having a photosensitive solar cell element (for example, the dye-sensitized solar cell element 11a in FIG. 3, the dye-sensitized solar cell element 91a in FIG. 21, and the dye-sensitized solar cell element 111a in FIG. 24). Solar cells (for example, dye-sensitized solar cell 11 in FIG. 3, dye-sensitized solar cell 91 in FIG. 21, dye-sensitized solar cell 111 in FIG. 24),
A light irradiation member (for example, the EL light emitting element 12 in FIGS. 3 and 21, the LED 62 and the light guide plate 63 in FIG. 3, FIG. 14) disposed on the opposite side of the solar cell from the solar light incident surface side. EL light emitting element 116) of FIG.
A decorative portion (for example, the decorative portion 13 in FIG. 1, the decorative portion 21 in FIG. 6, the decorative portion 31 in FIG. 8, and the decorative portion 93 in FIG. 19) provided on at least one of the pair of light transmissive substrates. , The decorative portion 113) of FIG.
It is characterized by having.

The invention according to claim 2 is the decorative device according to claim 1,
The decorative portion is an outer surface of at least one of the pair of light transmissive substrates (for example, upper glass g1 and lower glass g2 in FIGS. 3 and 21, upper glass g3 and lower glass g4 in FIG. 24). (For example, it is printed on the outer surface g11, the outer surface g21 in FIG. 3, FIG. 21, the outer surface g31 in FIG. 24, and the outer surface g41).

Invention of Claim 3 is the decoration apparatus of Claim 1 or 2, Comprising:
The decorative portion is an outer surface of at least one of the pair of light transmissive substrates (for example, upper glass g1 and lower glass g2 in FIGS. 3 and 21, upper glass g3 and lower glass g43 in FIG. 24). (For example, the outer surface g11 of FIG. 3, FIG. 21, the outer surface g21, the outer surface g31 of FIG. 24, and the outer surface g41) are set or stuck.

Invention of Claim 4 is a decoration apparatus as described in any one of Claims 1-3,
The decorative portion is an outer surface of at least one of the pair of light transmissive substrates (for example, upper glass g1 and lower glass g2 in FIGS. 3 and 21, upper glass g3 and lower glass g4 in FIG. 24). (For example, the outer surface g11, the outer surface g21 in FIG. 3 and FIG. 21, the outer surface g31 in FIG. 24, and the outer surface g41) are formed by etching.

Invention of Claim 5 is a decoration apparatus as described in any one of Claims 1-4, Comprising:
The light irradiation member is:
A light emitting element that emits light (for example, LED 62 in FIG. 14);
A light guide plate (for example, the light guide plate 63 in FIG. 14) that introduces light emitted by the light emitting element and irradiates the light toward the solar cell;
It is characterized by having.

The invention according to claim 6 is a decoration device,
Dye-sensitized solar cell elements (for example, FIG. 10, FIG. 10 and FIG. 14) disposed in a region between the pair of light-transmitting substrates (for example, FIG. A light-transmitting solar cell having the dye-sensitized solar cell element 11a in FIG. 14 (for example, the dye-sensitized solar cell 11 in FIGS. 10 and 14) and the solar incident surface side opposite to the solar cell. A light irradiation member (for example, the EL light emitting element 12 in FIG. 10, the LED 62 and the light guide plate 63 in FIG. 14) disposed on the side and irradiating the solar cell with light;
A decorative portion (for example, the decorative portion 13 in FIGS. 10 and 14) provided on the outer surface of the light irradiation member (for example, the light irradiation outer surface 12a in FIG. 10 and the light irradiation outer surface 62a in FIG. 14);
It is characterized by having.

The invention according to claim 7 is the decorative device according to claim 6,
The decorative portion is printed on the light irradiation outer surface (for example, the light irradiation outer surface 12a of FIG. 10) of the light irradiation member.

The invention according to claim 8 is the decorative device according to claim 6 or 7,
The decorative portion is characterized by being typeset or affixed to a light irradiation outer surface (for example, the light irradiation outer surface 12a of FIG. 12) of the light irradiation member.

Invention of Claim 9 is a decoration apparatus as described in any one of Claims 6-8,
The light irradiation member is:
A light emitting element that emits light (for example, LED 62 in FIG. 14);
A light guide plate (for example, the light guide plate 63 in FIG. 14) that introduces light emitted by the light emitting element and irradiates the light toward the solar cell;
With
The decorative portion is formed on the light irradiation outer surface (for example, the light irradiation outer surface 62a of FIG. 14) of the light guide plate.

The invention according to claim 10 is a decoration device,
A dye-sensitized solar cell element (for example, the dye-sensitized dye shown in FIG. 16) disposed in a region between the pair of light-transmitting substrates (for example, the upper plate glass g1 and the lower plate glass g2 in FIG. 16) and the pair of light-transmitting substrates. Light-transmitting solar cell (for example, dye-sensitized solar cell 11 in FIG. 16) having a solar cell element 11a),
A light irradiating member (for example, EL light emitting element 12 in FIG. 16) disposed on the opposite side of the solar light incident surface of the solar cell and irradiating the solar cell with light;
A decorative board (for example, a decorative board 71 in FIG. 16) having light transmittance disposed on the solar light incident surface side of the solar cell;
A decorative portion formed on the decorative plate and including at least one of a figure, a pattern, and characters (for example, the decorative portion 21 in FIG. 16);
It is characterized by having.

The invention according to claim 11 is a decoration device,
A dye-sensitized solar cell element (for example, the dye-sensitized dye shown in FIG. 18) disposed in a region between the pair of light-transmitting substrates (for example, the upper glass plate g1 and the lower glass plate g2 in FIG. 18) and the pair of light-transmitting substrates. Light-transmitting solar cell (for example, the dye-sensitized solar cell 11 in FIG. 18) having a type solar cell element 11a),
A decorative board (for example, a decorative board 71 in FIG. 18) having light transmissivity disposed on the opposite side of the solar light incident surface of the solar cell;
A light irradiating member (for example, EL light emitting element 12 in FIG. 18) disposed on the side opposite to the sunlight incident surface side of the decorative plate and irradiating the solar cell with light;
A decorative portion (for example, the decorative portion 21 in FIG. 18) formed on the decorative plate and including at least one of a figure (for example, the letter 21a in FIG. 18), a pattern, and a character (for example, the character 21b in FIG. 18). )When,
It is characterized by having.

The invention according to claim 12 is the decorative device according to claim 10 or 11,
The decorative portion is printed on a sunlight incident surface (for example, a sunlight incident surface 71a in FIG. 16) of the decorative plate.

Invention of Claim 13 is a decoration apparatus as described in any one of Claims 10-12,
The decorative portion is characterized by being typeset or affixed to a sunlight incident surface (for example, a sunlight incident surface 71a in FIG. 16) of the decorative plate.

Invention of Claim 14 is a decoration apparatus as described in any one of Claims 10-13,
The decorative portion is formed by etching on a sunlight incident surface (for example, the sunlight incident surface 71a in FIG. 16) of the decorative plate.

Invention of Claim 15 is a decoration apparatus as described in any one of Claims 1-14,
A liquid crystal unit (for example, the liquid crystal unit shown in FIG. 21) disposed between the pair of light transmissive substrates and the pair of light transmissive substrates and in a region different from the region where the dye-sensitized solar cell element is disposed. 92a and the liquid crystal part 113a in FIG. 24) (for example, the liquid crystal display part 92 in FIG. 21 and the liquid crystal display part 113 in FIG. 24).
The light irradiation member is:
A region where the dye-sensitized solar cell element is disposed (for example, the first region E1 in FIGS. 21 and 24) and a region where the liquid crystal part is disposed (for example, the second region in FIGS. 21 and 24). The region E2) is irradiated with light.

The invention described in claim 16 is an electronic device (for example, the wristwatch 100 in FIG. 1, the wristwatch 900 in FIG. 19, the mobile phone 1000 in FIG. 23),
The decoration device according to any one of claims 1 to 15 is disposed in an equipment case (for example, the watch case 2 in FIG. 2, the watch case 2a in FIG. 20, and the second casing 130 in FIG. 24). Features.

The invention according to claim 17 is the electronic device according to claim 16 (for example, the wristwatch 100 in FIG. 1 and the wristwatch 900 in FIG. 19),
A pointer (for example, a pointer 8b in FIG. 1 and a pointer 94 in FIG. 19) that is disposed closer to the sunlight incident surface than the solar cell and the decorative portion and indicates the time;
A drive unit for driving the pointer (for example, the analog pointer mechanism 8 in FIGS. 2 and 20),
The decoration portion includes a time character (for example, a time character 13a in FIG. 1 or a time character 93a in FIG. 19) indicated by the pointer.

According to the first aspect of the present invention, a light-transmitting solar cell having a pair of light-transmitting substrates and a dye-sensitized solar cell element disposed in a region between the pair of light-transmitting substrates, and the sun A light irradiating member disposed on the opposite side of the solar light incident surface of the battery and irradiating the solar cell with light; and a decorative portion provided on at least one of the pair of light transmissive substrates. Since the solar cell is provided, the solar cell can generate electric power by external light and light irradiated from the light irradiation member. Therefore, it is possible to further increase the power generation amount of the solar cell.
In addition, since the light irradiation member is disposed on the side opposite to the solar light incident surface side of the solar cell, light having a wider light emitting area than the conventional case where the light irradiation member and the solar cell are disposed on the same surface. Since an irradiation member can be arrange | positioned, the emitted light amount can also be increased.
Furthermore, for example, when it is configured to be able to store power obtained by power generation of a solar cell by providing a secondary battery or the like, the power obtained by power generation using light emitted by the light irradiation member Since the light irradiation member can emit light, power consumption when the light irradiation member emits light can be reduced, and a decoration device with high power efficiency can be provided.
Further, since the light transmitting substrate can serve as a conventional decorative member, it is not necessary to provide a separate decorative member, and the decorative device can be thinned.

  According to the invention described in claim 2, it is of course possible to obtain the same effect as that of the invention described in claim 1. In particular, the decorative portion is provided on the outside of at least one of the pair of light transmission substrates. Since it is printed on the surface, various decorative parts can be formed more easily.

  According to the invention described in claim 3, it is needless to say that the same effect as that of the invention described in claim 1 or 2 can be obtained. In particular, the decorative portion is at least one of the pair of light transmitting substrates. Since it is typeset or affixed to the outer surface, a decorative part having a three-dimensional effect and a high-class feeling can be provided.

  According to the invention described in claim 4, it is needless to say that the same effect as in the invention described in any one of claims 1 to 3 can be obtained. Since the outer surface of at least one light transmitting substrate is formed by etching, irregularities are formed on the outer surface of the light transmitting substrate, so that more various decorative portions can be suitably provided.

  According to the invention described in claim 5, it is needless to say that the same effect as that of the invention described in any one of claims 1 to 4 can be obtained. In particular, the light irradiation member includes a light emitting element that emits light. The light guide plate that guides the light emitted by the light emitting element and irradiates it toward the solar cell, so that the solar cell is surely irradiated with light evenly, thereby improving the power generation efficiency. Can be improved.

According to invention of Claim 6, the light-transmitting solar cell which has a pair of light transmissive board | substrates, and the dye-sensitized solar cell element arrange | positioned in the area | region between this pair of light transmissive board | substrates, and this solar cell Since the solar cell is provided with a light irradiation member that is disposed on the opposite side of the solar light incident surface and irradiates the solar cell with light, and a decorative portion provided on the outer surface of the light irradiation member, the solar cell Can be generated by external light and light irradiated from the light irradiation member. Therefore, it is possible to further increase the power generation amount of the solar cell.
In addition, since the light irradiation member is disposed on the side opposite to the solar light incident surface side of the solar cell, light having a wider light emitting area than the conventional case where the light irradiation member and the solar cell are disposed on the same surface. Since an irradiation member can be arrange | positioned, the emitted light amount can also be increased.
In addition, for example, when the secondary battery or the like is provided so that the power obtained by the power generation of the solar cell can be stored, the power obtained by the power generation using the light emitted by the light irradiation member Since the light irradiation member can emit light, power consumption when the light irradiation member emits light can be reduced, and a decoration device with high power efficiency can be provided.
In addition, since the light transmitting substrate plays the role of a conventional decorative member, it is not necessary to provide a separate decorative member, and the decorative device can be thinned.

  According to the invention described in claim 7, it is natural that the same effect as that of the invention described in claim 6 can be obtained. Various decorations can be provided more easily.

  According to the invention described in claim 8, it is of course possible to obtain the same effect as that of the invention described in claim 6 or 7. In particular, the decorative part is typeset or affixed to the light irradiation outer surface of the light irradiation member. Therefore, a decorative portion having a three-dimensional feeling and a high-class feeling can be provided.

According to the ninth aspect of the present invention, it is needless to say that the same effect as that of the sixth aspect of the present invention can be obtained. In particular, the light irradiation member includes a light emitting element that emits light. The light guide plate that guides the light emitted by the light emitting element and irradiates it toward the solar cell, so that the solar cell is reliably irradiated with light evenly, and the power generation efficiency is reduced. It can be improved further.
Moreover, since the decoration part is formed in the light irradiation outer surface of a light-guide plate, the decoration part can be visually recognized more suitably with the light emitted from a light emitting element.

According to the invention described in claim 10, a light-transmitting solar cell having a pair of light-transmitting substrates and a dye-sensitized solar cell element disposed in a region between the pair of light-transmitting substrates, and the sun A light irradiating member disposed on the side opposite to the solar light incident surface of the battery and irradiating the solar cell with light; a light-transmitting decorative plate disposed on the solar light incident surface side of the solar cell; Since it is formed on the decorative plate and includes a decorative portion including at least one of a figure, a pattern, and characters, the solar cell can generate electric power by external light and light irradiated from the light irradiation member. Therefore, it is possible to further increase the power generation amount of the solar cell.
In addition, since the light irradiation member is disposed on the side opposite to the solar light incident surface side of the solar cell, light having a wider light emitting area than the conventional case where the light irradiation member and the solar cell are disposed on the same surface. Since an irradiation member can be arrange | positioned, the emitted light amount can also be increased.
In addition, for example, when the secondary battery or the like is provided so that the power obtained by the power generation of the solar cell can be stored, the power obtained by the power generation using the light emitted by the light irradiation member Since the light irradiation member can emit light, power consumption when the light irradiation member emits light can be reduced, and a decoration device with high power efficiency can be provided.
In addition, when a colored decorative plate having light transmittance is provided as a decorative plate, a composite color of the color of the decorative plate and the color of the dye of the dye-sensitized solar cell element is visually recognized. Therefore, the variation of the color in decoration can be increased.

According to the eleventh aspect of the present invention, a light transmissive solar cell having a pair of light transmissive substrates and a dye-sensitized solar cell element disposed in a region between the pair of light transmissive substrates, and the sun A decorative plate having light transmittance disposed on the side opposite to the solar light incident surface side of the battery, and light irradiation for irradiating the solar cell with light disposed on the side opposite to the solar light incident surface side of the decorative plate Formed on a member and a decorative plate,
And a decorative portion including at least one of a figure, a pattern, and characters, the solar cell can generate electric power by external light and light irradiated from the light irradiation member. Therefore, it is possible to further increase the power generation amount of the solar cell.
In addition, since the light irradiation member is disposed on the side opposite to the solar light incident surface side of the solar cell, light having a wider light emitting area than the conventional case where the light irradiation member and the solar cell are disposed on the same surface. Since an irradiation member can be arrange | positioned, the emitted light amount can also be increased.
In addition, for example, when the secondary battery or the like is provided so that the power obtained by the power generation of the solar cell can be stored, the power obtained by the power generation using the light emitted by the light irradiation member Since the light irradiation member can emit light, power consumption when the light irradiation member emits light can be reduced, and a decoration device with high power efficiency can be provided.

  According to the twelfth aspect of the invention, it is of course possible to obtain the same effect as that of the tenth or eleventh aspect of the invention, and in particular, the decorative portion is printed on the sunlight incident surface of the decorative board. Various decorations can be formed more easily.

  According to the invention of claim 13, it is needless to say that the same effect as that of the invention of any one of claims 10 to 12 can be obtained. Since it is typeset or affixed to the surface, it is possible to provide a decorative portion having a three-dimensional effect and a high-class feeling.

  According to the invention of claim 14, it is needless to say that the same effect as that of any one of claims 10 to 13 can be obtained. Since the surface is formed by etching, more various decorations can be suitably formed.

  According to the fifteenth aspect of the present invention, it is needless to say that the same effect as that of the first aspect of the present invention can be obtained. In particular, the pair of light transmissive substrates and the pair of light transmissive substrates. A liquid crystal display unit having a liquid crystal unit disposed between a substrate and a region where the dye-sensitized solar cell element is disposed and a region different from the region is provided, and the light irradiation member is a dye-sensitized solar cell element Since the light is irradiated to both the region where the liquid crystal unit is disposed and the region where the liquid crystal unit is disposed, the solar cell generates power by irradiating light from one light irradiation member, and the liquid crystal display of the liquid crystal unit is darkened. Can be visually recognized. Therefore, it is not necessary to provide the light irradiation member individually, and the cost can be further reduced.

  According to the invention of claim 16, since the decoration device according to any one of claims 1 to 15 is arranged in the equipment case, it is possible to further increase the power generation amount of the solar cell, and more It is possible to provide an electronic apparatus having a decoration device capable of ensuring a wide light emission area and a larger light emission amount.

  According to the invention described in claim 17, it is needless to say that the same effect as that of the invention described in claim 16 can be obtained. In particular, the solar cell and the decorative part are disposed closer to the sunlight incident surface, and the time The decorative portion includes a time character indicated by the pointer, so that it can function as a clock, and as a result, by the light irradiation member Since the solar cell is irradiated with light, the time can be clearly seen even in a dark place.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments in which a decoration device according to the present invention is applied to a wristwatch as an electronic device will be described in detail below with reference to the drawings.

[Embodiment 1]
1 is a plan view showing a wristwatch to which a decoration device according to the present invention is applied, FIG. 2 is a cross-sectional view taken along the line II-II of the wristwatch of FIG. 1, and FIG. 3 is a main part of the wristwatch of FIG. Enlarged view, Figure 4
These are block diagrams which show the principal part structure of the wristwatch of FIG.

  As shown in FIGS. 1 and 2, the wristwatch 100 is provided with a watch case 2 as a device case for housing the clock timing unit 1 therein, and a watch glass 3 is attached to the upper center of the watch case 2. Yes. Further, a back cover 4 is attached to the watch case 2 on the side opposite to the sunlight incident surface side by screws (not shown) via a waterproof ring 4a. Further, on the outer peripheral portion of the watch case 2, switches 102a to 102d for instructing execution of various functions of the wristwatch 100 constituting the input unit 102 (see FIG. 4) are provided.

For example, as shown in FIG. 2, the clock timing unit 1 includes an upper housing 5 provided on the sunlight incident surface side, and a lower housing 6 provided on the opposite side of the upper housing 5 from the sunlight incident surface side. The decorative device 10 according to the present invention is provided.
A circuit board 7 such as PWB is disposed between the upper housing 5 and the lower housing 6.
A frame-like member 15 is disposed on the upper portion of the upper housing 6 so that the upper surface thereof is substantially in contact with the lower surface of the watch glass 3.

The lower housing 6 incorporates an analog pointer mechanism 8 as a drive unit and a secondary battery 9 for storing electric power generated by a dye-sensitized solar cell 11 (described later) of the decoration device 10.
The analog pointer mechanism 8 includes a pointer shaft 8a extending upward from a shaft hole a provided in the decoration device 10, and hands 8b such as an hour hand 81, a minute hand 82, and a second hand 83 attached to the pointer shaft 8a. These pointers 8b are configured to move above the decoration device 10. The analog pointer mechanism 8 is electrically connected to the circuit board 7, and the secondary battery 9 is also electrically connected to the circuit board 7.

  For example, as illustrated in FIGS. 2 and 3, the decoration device 10 includes a dye-sensitized solar cell 11 as a solar cell, and a back side of the dye-sensitized solar cell 11 (on the side opposite to the sunlight incident surface side). The EL light emitting element 12 as a light irradiating member for irradiating the dye-sensitized solar cell 11 with light, and the decorative portion 13 provided in the dye-sensitized solar cell 11 are configured. .

  The dye-sensitized solar cell 11 is a dye-sensitized solar cell disposed in a region between an upper plate glass g1 and a lower plate glass g2 constituting a pair of light transmission substrates, and the upper plate glass g1 and the lower plate glass g2. It is comprised from the element 11a.

  A decorative portion 13 shown in FIG. 1 is printed on the outer surface g11 (sunlight incident surface) of the upper glass plate g1. This decoration part 13 is comprised from the time character 13a shown in FIG. 1, and the character 13b, for example.

  For example, as shown in FIG. 1, the time characters 13a are substantially rectangular figures, and are printed at 12 positions at equal intervals on the peripheral edge of the sunlight incident surface of the upper glass plate g1. Then, when the time character 13a is indicated by the pointer 8b, the current time can be known.

The character 13b is, for example, a character indicating a company name, a product name, or the like. Specifically, for example, as shown in FIG. 1, three alphabets “A”, “I”, and “C” are printed in the vicinity of the portion corresponding to 12:00 of the time character 13a, and the character 13b ( "AIC").
The character 13a and the character 13b are printed by applying, for example, a non-light-transmitting or light-semi-transmitting paint to the upper glass g1, so that the amount of transmitted external light is different from the other portions. It can be visually recognized.

  In addition, the printing method of the time character 13a and the character 13b is not specifically limited, For example, it prints using several types of printing methods, and you may make it improve visibility and design property.

  The dye-sensitized solar cell element 11a includes, for example, an upper transparent electrode (not shown) provided on the lower surface of the upper glass plate g1, a lower transparent electrode (not shown) provided on the upper surface of the lower glass plate g2, and an upper transparent electrode and a lower electrode. A metal oxide layer (not shown) sealed with a seal member 11b between the transparent electrodes and adsorbed with a predetermined dye, and a predetermined electrolyte sealed with the seal member 11b between the upper transparent electrode and the lower transparent electrode. It is comprised by the electric charge transport layer etc. which are not shown in figure.

Here, as a pigment, for example, a ruthenium complex (RuL ₂ (NCS) ₂ , L = 4.4′-dicarboxy-2,2 ′ bipyridine) can be used, and titanium oxide (TiO ₂ ) which is a metal oxide can be used. A metal oxide layer is formed by adsorption. As the electrolyte, iodide can be used. For example, a charge transport layer is formed by adding lithium iodide or metal iodine to polyethylene glycol.

The dye-sensitized solar cell 11 is irradiated with external light such as sunlight through the watch glass 3.
Further, the dye-sensitized solar cell 11 has light transmittance, and transmits light emitted from the EL light emitting element 12 as a backlight to the sunlight incident surface side of the dye-sensitized solar cell 11. Can do.

  When the dye-sensitized solar cell 11 is irradiated with light, the dye adsorbed on the metal oxide layer (not shown) of the dye-sensitized solar cell 11 absorbs light energy and emits electrons. The emitted electrons are delivered to one transparent electrode via titanium oxide, and sent from the transparent electrode to a predetermined external load resistance (for example, the analog pointer mechanism 8 of the clock timing unit 1). The electrons that have moved through the load resistance reach the other transparent electrode, and then return to the dye through the electrolyte layer (not shown). Due to this electron circulation phenomenon, it is possible to generate electric power by generating a current and supply electric energy to the load resistance.

Next, the internal configuration of the wristwatch 100 will be described with reference to FIG.
FIG. 4 is a block diagram showing the internal configuration of the wristwatch 100, which includes a CPU 101, an input unit 102, a pointer drive circuit unit 103, a display drive circuit unit 104, a RAM 105, a ROM 106, a clock circuit unit 107, and an oscillation circuit unit 108. The components other than the oscillation circuit unit 108 are connected by a bus B.

  The CPU 101 performs an instruction to each functional unit, data transfer, and the like based on various programs stored in the ROM 106 in accordance with a predetermined timing or an operation signal input from the input unit 102. In particular, the CPU 101 performs various controls such as outputting a time signal based on the current time data counted by the timing circuit unit 107 to the pointer drive circuit unit 103 to update the display time.

  The input unit 102 includes switches 102a to 102d (see FIG. 1) for causing the wristwatch 100 to execute various functions. When these switches 102 a to 102 d are operated, operation signals for the corresponding switches are output to the CPU 101.

  The pointer drive circuit unit 103 is a circuit that constitutes a part of the analog pointer mechanism 8, and outputs a drive signal based on the current time data by the timekeeping circuit unit 106, for example, causes the pointer 8b to move and gives a time instruction. .

  The display drive circuit unit 104 is a circuit that outputs a light emission signal to the EL light emitting element 12 based on the output instruction signal output from the CPU 101 and emits light toward the dye-sensitized solar cell 11.

  The RAM 105 temporarily stores data processed by the CPU 101 under the control of the CPU 101. The ROM 106 mainly stores a system program related to the wristwatch 100 and the like.

  The clock circuit unit 106 is connected to an oscillation circuit unit 107 that always outputs a signal with a constant frequency, and counts the signals output from the oscillation circuit unit 107 to obtain current time data and the like. Then, the current time data is output to the CPU 101.

Next, the operation of the wristwatch 100 having the above configuration will be described.
First, an example of the operation of the wristwatch 100 when external light is incident will be described.
When external light such as sunlight or room light enters from the sunlight incident surface side of the watch glass 3, the incident light passes through the upper glass plate g1 and is absorbed by the dye (not shown) of the dye-sensitized solar cell element 11a. As a result, photoelectric conversion is performed and power generation is performed. Then, the secondary battery 9 is charged with the electric power obtained by this power generation.
When a driving signal is output from the pointer driving circuit unit 103 to the analog pointer mechanism 8, the analog pointer mechanism 8 moves the pointer 8 b with the electric power obtained by the power generation of the dye-sensitized solar cell 11.

Next, an example of the operation of the wristwatch when light is emitted from the EL light emitting element 12 as a backlight will be described.
First, when the user presses the input unit 102 (see FIG. 1) at night, overcast, dark place, etc., an output instruction signal is output from the CPU 101 to the display drive circuit unit 104 (see FIG. 4). . Next, a light emission signal is output from the display drive circuit unit 104 (see FIG. 4) to the EL light emitting element 12, and light is emitted from the EL light emitting element 12 to the dye-sensitized solar cell element 11 by the power charged in the secondary battery 9. Is emitted, the decorative portion 13 becomes visible.
At this time, the light emitted from the EL light emitting element 12 passes through the lower glass plate g2 and is absorbed by the dye of the dye-sensitized solar cell element 11a, so that power is generated in the dye-sensitized solar cell 11.
In a dark place or the like, the pointer 8b of the wristwatch 100 is moved by the electric power charged in the secondary battery 9.

As described above, according to the wristwatch 100 of the first embodiment, the dye-sensitized solar cell 11 of the decoration device 10 provided in the interior generates power by sunlight incident from the sunlight incident surface side, light from the room lamp, or the like. In addition, power generation can be performed by light emitted from the EL light emitting element 12 disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 11. Therefore, the power generation amount of the dye-sensitized solar cell 11 can be further increased.
In addition, since the EL light emitting element 12 (light irradiation member) is disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 11, the light irradiation member and the solar cell are disposed on the same surface as in the past. Compared to the case, the EL light emitting element 12 having a wider light emitting area can be arranged, and the light emission amount can be increased.
Further, when the EL light emitting element 12 emits light in a dark place, the dye-sensitized solar cell 11 generates power by the light emitted from the EL light emitting element 12, and the generated power is stored in the secondary battery 9. . As a result, the power consumption by the EL light emitting element 12 can be supplemented with the power obtained by the dye-sensitized solar cell 11, and the power consumption when the EL light emitting element 12 emits light can be reduced. Therefore, the wristwatch 100 including the decoration device 10 with high power efficiency can be provided.

Further, the light emitted from the EL light emitting element 12 passes through the decoration device 10 (the dye-sensitized solar cell 11) provided therein and reaches the sunlight incident surface side of the wristwatch 100. Therefore, the EL light emitting element 12 emits light in a dark place, so that the time letters 13a and letters 13b ("AIC") of the upper glass plate g1 and the pointer 8b can be irradiated with the light.
Further, since the time characters 13a and the characters 13b are directly printed on the upper glass plate g1, it is not necessary to separately provide a decorative plate for decoration, and the decoration device 10 can be thinned. As a result, the wristwatch 100 can be thinned.

The place where the decorative portion 13 is provided is not limited to the outer surface g11 of the upper glass sheet g1, and may be, for example, the outer surface g21 (surface on the EL light emitting element 12 side) of the lower glass sheet g2, Furthermore, it may be provided on both the outer surface g11 of the upper glass sheet g1 and the outer surface g21 of the lower glass sheet g2.
Moreover, the decoration part 13 may be configured to include a pattern such as a radial pattern, a concentric pattern, and a lattice pattern in addition to a figure such as the time character 13a and a character such as the character 13b.

[Embodiment 2]
Next, a second embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. FIG. 5 is a cross-sectional view showing a wristwatch to which Embodiment 2 according to the present invention is applied, and FIG. 6 is an enlarged view of a main part of the wristwatch of FIG. Since the second embodiment is the same as the first embodiment except for the configuration of the decoration device 20, the same reference numerals are given to the same configurations, and detailed descriptions thereof are omitted.

As shown in FIG. 5, a decorative portion 21 is typeset on the outer surface g <b> 11 of the upper glass g <b> 1 of the decorative device 20 provided in the wristwatch 200.
More specifically, for example, as shown in FIG. 6, the time letters 21 a and the letters 21 b are set to project from the upper glass plate g 1 toward the watch glass 3 side.

The time character 21a is configured by, for example, a metal rod-like member having a substantially rectangular shape in plan view.
And this time character 21a is set by the upper plate glass g1, and a part of decoration part 21 is comprised.
The character 21b is composed of, for example, each metal member having the shapes of “A”, “I”, and “C”, and each of them is set at a predetermined position on the upper glass plate g1, whereby the character 21b (“ AIC ") and a part of the decorative part 21.

According to the wristwatch 200 of Embodiment 2 described above, the time letters 21a and the letters 21b of the decoration device 21 are typeset on the outer surface g11 of the upper glass plate g1, so that more various decorations can be applied.
Moreover, since it is possible to decorate three-dimensionally by typesetting, variations in decoration can be increased.
Moreover, the time character 21a and the character 21b are comprised with shellfishes, such as a white butterfly shell, and pyroxenes, such as opal, and can provide a more high-class feeling.

In addition, you may make it form the decoration part 21 by sticking the time character 21a and the character 21b on the outer surface g11 of the upper glass plate g1.
Further, the time character 21a is not limited to the rod-shaped member, and may be a circular member, or may be configured by setting or pasting a member having a shape such as an Arabic numeral or a Roman numeral. Good.
Moreover, the typesetting method or sticking method of the time letter 21a and the character 21b of the decoration part 21 is not specifically limited, and the typesetting or sticking may be any manual operation or automatic operation.
Moreover, although the time letter 21a and the letter 21b may be a light-transmitting member, a non-light-transmitting metal member or the like in that it can be visually recognized in the dark by the light emitted by the EL light emitting element 12. Is preferably used.
Further, the decorative portion 21 may be configured to include a pattern such as a radial pattern, a concentric pattern, and a lattice pattern in addition to a figure such as a time character 21a and a character such as a character 21b.

  Further, the place where the decorative portion 21 is provided is not limited to the outer surface g11 of the upper glass plate g1, and may be, for example, the outer surface g21 (surface on the EL light emitting element 12 side) of the lower glass plate g2, Furthermore, you may provide in the glass of both the outer surface g11 of the upper glass plate g1, and the outer surface g21 of the lower glass plate g2.

[Embodiment 3]
Next, a third embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. FIG. 7 is a cross-sectional view showing a wristwatch to which Embodiment 3 according to the present invention is applied, and FIG. 8 is an enlarged view of a main part of the wristwatch of FIG. Since the third embodiment is the same as the first embodiment except for the configuration of the decoration device 30, the same reference numerals are given to the configuration, and detailed description thereof is omitted.

As shown in FIG. 7, a decorative part 31 is formed by etching on the outer surface g11 of the upper glass g1 of the decorative device 30 provided in the wristwatch 300.
As shown in FIG. 8, the time character 31 a and the character 31 b that are the decorative portion 31 are formed in a concave shape from the outer surface g11 of the upper glass plate g1 toward the opposite surface.

  The etching process for forming such a decoration part 31 is performed as follows, for example. First, a resist is applied to the outer surface g11 of the upper glass plate g1 to portions other than the portions where the time letters 31a and the characters 31b are formed, and a decorative pattern of the decorative portion 31 (for example, the plan view is the same as the decorative portion 13 of FIG. 1). (Decoration pattern) is formed, and then the upper glass plate g1 is immersed in an etching solution, and the portion where the resist is not applied is scraped off and finally the resist is removed.

  As described above, according to the wristwatch 300 of the third embodiment, since the decorative portion 31 is formed by etching on the outer surface g11 of the upper glass plate g1, irregularities are formed on the upper glass plate g1, Even more diverse decorations can be applied.

The time characters 31a and the characters 31b formed by etching are not limited to concave shapes. For example, the time characters 31a and 31b are convex by etching the peripheral portions of the time characters 31a and 31b. You may form in.
Further, the place where the decorative portion 31 is provided is not limited to the outer surface g11 of the upper glass sheet g1, and may be, for example, the outer surface g21 (surface on the EL light emitting element 12 side) of the lower glass sheet g2, Furthermore, you may provide in the glass of both the outer surface g11 of the upper glass plate g1, and the outer surface g21 of the lower glass plate g2.
Moreover, the decoration part 31 may be configured to include a pattern such as a radial pattern, a concentric pattern, and a lattice pattern in addition to a figure such as a time character 31a and a character such as a character 31b.

[Embodiment 4]
Next, a fourth embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. FIG. 9 is a cross-sectional view showing a wristwatch to which Embodiment 4 according to the present invention is applied, and FIG. 10 is an enlarged view of a main part of the wristwatch of FIG. Since the fourth embodiment is the same as the first embodiment except for the configuration of the decoration device 40, the same reference numerals are given to the same configurations, and detailed description thereof is omitted.

  As shown in FIGS. 9 and 10, the light emitting outer surface 12 a of the EL light emitting element 12 as the light irradiating member of the decorative device 40 provided in the wristwatch 400 has a decorative portion 13 (time characters 13 a, The characters 13b) are printed.

According to the wristwatch 400 of the fourth embodiment, the dye-sensitized solar cell 11 of the decoration device 40 provided therein can generate electric power by sunlight incident from the sunlight incident surface side, light from a room lamp, or the like. The power generation can also be performed by the light emitted from the EL light emitting element 12 disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 11. Therefore, the power generation amount of the dye-sensitized solar cell 11 can be further increased.
In addition, since the EL light emitting element 12 (light irradiation member) is disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 11, the light irradiation member and the solar cell are disposed on the same surface as in the past. Compared to the case, the EL light emitting element 12 having a wider light emitting area can be arranged, and the light emission amount can be increased.

Further, since the light emitted from the EL light emitting element 12 passes through the decoration device 40 and reaches the sunlight incident surface side of the wristwatch 400, the EL light emitting element 12 emits light in a dark place, so that the pointer 8b or the like Can be irradiated with light. Further, the portions of the time characters 13a and the characters 13b printed on the EL light emitting element 12 have different amounts of light transmission compared to other parts, or no light is transmitted at all, so that the EL light emitting element 12 is dark. The time character 13a and the character 13b are discriminated and displayed as other parts by emitting light. With such a configuration, the time and decoration indicated by the wristwatch 400 can be visually recognized even in a dark place.
Further, since the time characters 13a and the characters 13b are directly printed on the EL light emitting element 12, it is not necessary to separately provide a decorative plate for decoration, and the decoration device 40 can be thinned. Can be made thinner.

[Embodiment 5]
Next, a fifth embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. 11 is a cross-sectional view showing a wristwatch to which Embodiment 5 according to the present invention is applied, and FIG. 12 is an enlarged view of a main part of the wristwatch of FIG. Since the fifth embodiment is the same as the first and second embodiments except for the configuration of the decoration device 50, the same reference numerals are given to the same configurations, and detailed description thereof is omitted.

  As shown in FIG. 12, a decorative portion 21 (time letters 21a, letters 21b) is typeset on the light irradiation outer surface 12a of the EL light emitting element 12 as a light irradiation member of the decoration device 50 provided in the wristwatch 500. .

According to the wristwatch 500 of the fifth embodiment, the pointer 8b and the like can be irradiated with the light emitted from the EL light emitting element 12. Further, the portions of the time letters 21a and the letters 21b set on the EL light emitting element 12 have different amounts of light transmission compared to other parts, or no light is transmitted at all. Therefore, the EL light emitting element 12 is dark. The time character 21a and the character 21b are discriminated and displayed as other parts. With such a configuration, the time and decoration indicated by the wristwatch 500 can be visually recognized even in a dark place.
Moreover, since the time letter 21a and the letter 21b are typeset on the light-irradiation outer surface 12a of the EL light emitting element 12, the EL light emitting element 12 itself functions as a decoration. This is unnecessary, and the decoration device 50 can be thinned. As a result, the wristwatch 500 can be thinned.

  In addition, in the said embodiment, although the structure which sets the time character 21a and the character 21b was shown, it is not limited to a typesetting, The decoration which made the predetermined shape on the light irradiation outer surface 12a of the EL light emitting element 12 The decorative portion 21 may be configured by pasting a member or the like.

[Embodiment 6]
Next, a sixth embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. FIG. 13 is a cross-sectional view showing a wristwatch to which Embodiment 6 according to the present invention is applied, and FIG. 14 is an enlarged view of a main part of the wristwatch of FIG. Since the sixth embodiment is the same as the first embodiment except for the configuration of the decoration device 60, the same reference numerals are given to the same configurations, and detailed description thereof is omitted.

  As shown in FIG. 13, on the outer surface g11 of the upper plate glass g1 of the dye-sensitized solar cell 11 of the decoration device 60 provided in the wristwatch 600, the decoration part 13 (time letter 13a, letter 13b) similar to FIG. Is printed.

  The light irradiation member 61 of the decoration device 60 includes an LED 62 as a light emitting element that emits light, and a light guide plate 63 that introduces light emitted from the LED 62 and irradiates the light toward the dye-sensitized solar cell 11. Has been.

For example, as shown in FIG. 14, the LED 62 is disposed on the outer peripheral side surface portion of the light guide plate 63 and at a location corresponding to 12:00 of the hour character 13 a. The light emitted from the LED 62 enters the light guide plate 63 and is guided, and is emitted from the entire light guide plate 63 toward the dye-sensitized solar cell 11.
The LED 62 is electrically connected to, for example, the display drive circuit unit 104 (see FIG. 4), and emits light to the light guide plate 63 based on a light emission signal output from the display drive circuit unit 104. Be able to.

  As described above, according to the wristwatch 600 of the sixth embodiment, since the light irradiation member 61 is configured by the LED 62 and the light guide plate 63, the light emitted from the LED 62 to the dye-sensitized solar cell 11 is surely uniform. As a result, the power generation efficiency can be further improved.

  In addition, in the said embodiment, although LED62 showed the structure arrange | positioned in the outer peripheral side part of the light-guide plate 63, it is good also as a structure provided with cyclic | annular LED62 in the outer peripheral side part of the light-guide plate 63, for example. It is good also as a structure provided with several LED62.

  Further, the place where the decorative portion 13 is provided is not limited to the outer surface g11 of the upper glass sheet g1, and may be, for example, the outer surface g21 (the surface on the EL light emitting element 12 side) of the lower glass sheet g2, Furthermore, it may be provided on both the outer surface g11 of the upper glass plate g1 and the outer surface g21 of the lower glass plate g2.

Further, instead of the decorative portion 13 provided on the outer surface g11 of the upper glass plate g1, a configuration in which the decorative portion 21 shown in the second embodiment is typeset or pasted may be used, or the decorative portion 31 shown in the third embodiment. May be formed by etching.
Moreover, it is good also as a structure which provides the decoration part 13 in the light irradiation outer surface 62a of the light-guide plate 63 instead of providing in the upper glass plate g1. Even in this case, a configuration in which the decorative portion 13 is provided by printing or a configuration in which the decorative portion 21 shown in the second embodiment is typeset or pasted may be used, or the decorative portion 31 shown in the third embodiment may be etched. The structure to form may be sufficient.

[Embodiment 7]
Next, a seventh embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. FIG. 15 is a cross-sectional view showing a wristwatch to which Embodiment 7 according to the present invention is applied, and FIG. 16 is an enlarged view of a main part of the wristwatch of FIG. Since the seventh embodiment is the same as the first embodiment except for the configuration of the decoration device 70, the same reference numerals are omitted for the same configuration as the first embodiment, and detailed description thereof is omitted.

  As shown in FIG. 15, the decoration device 70 provided in the wristwatch 700 has a dye-sensitized solar cell 11 and light transmittance disposed on the sunlight incident surface side of the dye-sensitized solar cell 11. The decoration board 71 and the decoration part 21 currently formed in the sunlight incident surface 71a of this decoration board 71 are provided.

For example, as shown in FIG. 16, the decorative plate 71 is attached to the pointer shaft 8 a, and the pointer 8 b moves on the decorative portion 21 of the decorative plate 71.
The color of the decorative plate 71 is different from the color of the dye of the dye-sensitized solar cell 11, and the color obtained by combining the color of the decorative plate 71 and the color of the dye of the dye-sensitized solar cell 11 is visually recognized. It has come to be.
The decoration part 21 is composed of, for example, a time character 21a as a graphic shown in FIG. 1 and a character 21b as a character, and is typeset as shown in the second embodiment.

As described above, according to the wristwatch 700 of the seventh embodiment, since the decorative plate 71 provided with the decorative portion 13 of the decorative device 70 has light transmittance, the dye-sensitized solar cell 11 is made of sunlight. Electricity can be generated by sunlight incident from the incident surface side, light from an indoor lamp, or the like, and by the EL light emitting element 12 disposed on the opposite side of the sunlight incident surface side of the dye-sensitized solar cell 11. Electric power can be generated also by the emitted light. Therefore, the power generation amount of the dye-sensitized solar cell 11 can be further increased.
In addition, since the EL light emitting element 12 (light irradiation member) is disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 11, the light irradiation member and the solar cell are disposed on the same surface as in the past. Compared to the case, the EL light emitting element 12 having a wider light emitting area can be arranged, and the light emission amount can be increased.

  Moreover, since the synthetic color of the color of a decoration board and the color of the pigment | dye of the dye-sensitized solar cell 11 is visually recognized, the variation of the color in a decoration can be increased.

15 and 16 show a configuration in which the decorative portion 21 is typeset on the sunlight incident surface 71a of the decorative plate 71 of the decorative device 70. As shown in the second embodiment, the decorative portion 13 is shown in FIG. Or a configuration in which the decorative portion 31 is formed by etching as shown in the third embodiment.
Furthermore, you may give the decoration shown by the said embodiment to at least any one surface among the outer surface g11 of the upper glass plate g1, and the outer surface g21 of the lower glass plate g2.

[Embodiment 8]
Next, an eighth embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. FIG. 17 is a cross-sectional view showing a wristwatch to which an eighth embodiment according to the present invention is applied, and FIG. 18 is an enlarged view of a main part of the wristwatch of FIG. Since the eighth embodiment is the same as the first and seventh embodiments except for the configuration of the decoration device 80, the same reference numerals are given to the same configurations, and detailed description thereof is omitted.

  As shown in FIGS. 17 and 18, the decoration device 80 provided in the wristwatch 800 is implemented only in that the decoration plate 71 is disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 11. Different from Form 7.

According to the wristwatch 800 of the eighth embodiment, since the decorative plate 71 on which the decorative portion 21 of the decorative device 80 is provided has light transmittance, the dye-sensitized solar cell 11 can be viewed from the sunlight incident surface side. Power generation can be performed by incident sunlight, light from indoor lights, and the like, and power generation is also performed by light emitted from the EL light emitting element 12 disposed on the side opposite to the sunlight incident surface side of the decorative plate 71. Will be able to. Therefore, the power generation amount of the dye-sensitized solar cell 11 can be further increased.
In addition, since the EL light emitting element 12 (light irradiation member) is disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 11, the light irradiation member and the solar cell are disposed on the same surface as in the past. Compared to the case, the EL light emitting element 12 having a wider light emitting area can be arranged, and the light emission amount can be increased.

  Furthermore, you may give the decoration shown by the said embodiment to at least any one surface among the outer surface g11 of the upper glass plate g1, and the outer surface g21 of the lower glass plate g2.

[Embodiment 9]
Next, a ninth embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. 19 is a partially omitted plan view showing a wristwatch to which Embodiment 9 according to the present invention is applied, FIG. 20 is a cross-sectional view of the wristwatch taken along line XX-XX in FIG. 19, and FIG. FIG. 22 is a block diagram showing the configuration of the main part of the wristwatch of FIG. In addition, about the structure similar to Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The watch case 2a, the upper housing 5a, and the lower housing 6a as device cases in the present embodiment have the same functions as the watch case 2, the watch glass 3a, the upper housing 5, and the lower housing 6 of the first embodiment, respectively. Therefore, detailed description thereof will be omitted.

As shown in FIG. 20, in the wristwatch 900, a parting plate 14 is disposed between the watch glass 3a and the upper housing 5a.
As shown in FIGS. 19 and 20, the decoration device 90 provided in the wristwatch 900 includes a dye-sensitized solar cell 91 as a solar cell housed in the upper housing 5a, and a liquid crystal display for displaying time and the like on a liquid crystal display. Part 92, the dye-sensitized solar cell 91, and the EL light emitting element 12 as a light irradiation member disposed on the side opposite to the sunlight incident surface side of the liquid crystal display part 92.

  The dye-sensitized solar cell 91 includes a pair of light transmissive substrates made of an upper plate glass g1 and a lower plate glass g2, and a dye sensitization disposed in a first region E1 between the upper plate glass g1 and the lower plate glass g2. A type solar cell element 91a is provided.

As shown in FIG. 19, on the outer surface g11 of the upper glass plate g1 of the dye-sensitized solar cell 91, a time character 93a as a figure which is a decorative portion 93 is printed.
For example, as shown in FIG. 19, the time characters 93a are circular or square figures, and are printed at twelve positions at regular intervals in the same manner as in the first embodiment (FIG. 1). Then, when the time character 93a is instructed by the hands 94 (hour hand 94a, minute hand 94b), the current time can be visually confirmed.

For example, as shown in FIGS. 20 and 21, the liquid crystal display unit 92 includes a pair of light transmissive substrates made of an upper plate glass g1 and a lower plate glass g2, and a second region between the upper plate glass g1 and the lower plate glass g2. The liquid crystal unit 92a disposed in E2 is provided.
That is, the dye-sensitized solar cell element 91a and the liquid crystal part 92a are sandwiched between a pair of light transmission substrates (upper glass plate g1 and lower glass plate g2), respectively, and are integrally configured.

A transmissive polarizing plate 95, which is a part of the liquid crystal display unit 92, is disposed on the outer surface g11 of the upper glass plate g1 at a position corresponding to the liquid crystal unit 92a.
Further, a polarizing plate 96 with a transflective plate, which is a part of the liquid crystal display unit 92, is disposed on the outer surface g21 of the lower glass plate g2 at a position corresponding to the liquid crystal unit 92a.
The first region E1 and the second region E2 between the upper glass plate g1 and the lower glass plate g2 are partitioned by the seal member 11b, and the dye-sensitized solar cell element 91a and the liquid crystal unit 92a are separated. It is isolated.

The liquid crystal part 92a includes, for example, an upper transparent electrode (not shown) provided on the surface opposite to the outer surface g11 of the upper glass plate g1, and a lower transparent electrode provided on the surface opposite to the outer surface g21 of the lower glass plate g2. It comprises an electrode (not shown) and a liquid crystal layer (not shown) sealed between the upper transparent electrode and the lower transparent electrode. For the liquid crystal layer, for example, twist nematic (TN) liquid crystal having a twist angle of 90 degrees is used.
Note that wiring (not shown) extends from the transparent electrodes (upper transparent electrode and lower transparent electrode) in the liquid crystal part 92 a and is connected to a connector c connected to the circuit board 7.

Then, the light emitted from the EL light emitting element 12 is transmitted to the sunlight incident surface side through the polarizing plate 96 with a semi-transmissive reflector, and the light can be irradiated to the liquid crystal part 92a. ing.
The liquid crystal part 92a is adapted to be irradiated with external light such as sunlight from the liquid crystal window part 14a formed on the parting plate 14, and the liquid crystal display (digital display) in the liquid crystal part 92a is displayed on the liquid crystal window part. It can be visually recognized from 14a.

  The liquid crystal unit 92a is electrically connected to the display drive circuit unit 904 shown in FIG. For example, when the display drive circuit unit 904 applies a predetermined voltage between the pair of transparent electrodes based on the output instruction signal output from the CPU 101, information such as time and date is digitally converted according to the application state. It can be displayed.

  For example, as shown in FIG. 21, the EL light emitting element 12 includes a first region E1 in which the dye-sensitized solar cell element 91a of the dye-sensitized solar cell 91 is disposed and a liquid crystal unit 92a of the liquid crystal display unit 92. Is provided so that light can be emitted to both of the second regions E <b> 2.

As described above, according to the wristwatch 900 of the ninth embodiment, the dye-sensitized solar cell disposed in the region between the pair of light transmission substrates (the upper glass plate g1 and the lower glass plate g2) and the pair of light transmission substrates. A light-transmitting dye-sensitized solar cell 91 having an element 91a and a light-incident surface of the dye-sensitized solar cell 91 opposite to the solar light incident surface side. Since the EL light-emitting element 12 that irradiates and the decorative portion 93 provided on the outer surface g11 of the upper glass plate g1 are provided, the dye-sensitized solar cell 91 is irradiated from the external light and the EL light-emitting element 12. It will be possible to generate electricity with light. Therefore, the power generation amount of the dye-sensitized solar cell 91 can be further increased.
In addition, since the EL light emitting element 12 (light irradiation member) is disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 91, the light irradiation member and the solar cell are disposed on the same surface as in the past. Compared to the case, the EL light emitting element 12 having a wider light emitting area can be arranged, and the light emission amount can be increased.

Further, when the EL light emitting element 12 emits light in a dark place, the dye-sensitized solar cell 91 generates power by the light emitted from the EL light emitting element 12 and the generated power is stored in the secondary battery 9. . As a result, the power consumption by the EL light emitting element 12 can be supplemented with the power obtained by the dye-sensitized solar cell 91, and the power consumption when the EL light emitting element 12 emits light can be reduced. Therefore, the wristwatch 900 including the decoration device 90 with high power efficiency can be provided.
Further, since the hour glass 93a is printed on the outer surface g11 of the upper glass plate g1, the upper glass plate g1 itself has a decoration function, so that it is not necessary to provide a decorative member for decoration separately, and the decoration device is made thinner. it can.

In addition, light emitted from the EL light emitting element 12 of the decoration device 90 in the wristwatch 900 passes through the dye-sensitized solar cell element 91a and the liquid crystal unit 92a and reaches the sunlight incident surface side of the wristwatch 900. Accordingly, by causing the EL light emitting element 12 to emit light in a dark place, the pointer 94 and the liquid crystal portion 92a can be irradiated with the light, and the time indicated by the wristwatch 900 can be visually recognized.
Moreover, since light is emitted to the dye-sensitized solar cell element 91a and the liquid crystal unit 92a by one EL light emitting element 12, it is not necessary to provide the EL light emitting element 12 separately, thereby further reducing the cost. can do.

  Moreover, in the structure which forms the general liquid crystal display part 92 that sandwiches the liquid crystal part 92a between the upper glass sheet g1 and the lower glass sheet g2, the dye-sensitized solar cell 91 is also composed of the upper glass sheet g1 and the lower glass sheet g2. Therefore, it is not necessary to provide the dye-sensitized solar cell 91 and the liquid crystal display unit 92 in the thickness direction, and the decoration device 90 can be thinned.

  Further, a liquid crystal display function (digital display function) is given by the liquid crystal part 92 a of the liquid crystal display part 92 of the decoration device 90.

In addition, although the decoration part 93 in Embodiment 9 showed the structure by which only the time character 93a was printed on the upper glass g1, the character as shown in Embodiment 1 (refer FIG. 1) is printed. Alternatively, the outer surface g11 of the upper glass sheet g1 may be decorated by typesetting or pasting or etching as shown in the second or third embodiment.
Further, the decoration portion 93 is not limited to the outer surface g11 of the upper glass sheet g1, and may be, for example, the outer surface g21 of the lower glass sheet g2, or the outer surface g11 of the upper glass sheet g1 and It may be provided on both of the outer surfaces g2 of the lower glass sheet g2, and may further include the light transmissive decorative plate 71 shown in the seventh embodiment.

  Further, instead of providing the EL light emitting element 12, the LED 62 and the light guide plate 63 described in Embodiment 6 may be provided in combination.

[Embodiment 10]
Next, a tenth embodiment in which the present invention is applied to a mobile phone will be described with reference to FIGS. FIG. 23 is a plan view showing a mobile phone to which the tenth embodiment of the present invention is applied, and FIG. 24 is an enlarged cross-sectional view showing the main part of the mobile phone along the line XXIV-XXIV in FIG. Since the tenth embodiment differs from the first and ninth embodiments only in that the decoration device 110 is applied to the mobile phone 1000, the same reference numerals are given to the same configurations as the first and ninth embodiments. Detailed description will be omitted.

  As shown in FIG. 23, the mobile phone 1000 is, for example, a foldable type, a first housing 120 having a key input unit 121, and a device that is rotatably provided in the first housing 120. A second casing 130 as a case and a decoration device 110 and the like housed in the second casing 130 are provided.

A decorative portion 112 shown in FIG. 23 is provided on the upper glass plate g3 of the dye-sensitized solar cell 111 of the decorative device 110. Specifically, for example, a character 112a (for example, “AIC” shown in FIG. 23) as a character of the decorative portion 112 is printed in the vicinity of the upper end of the outer surface g31 (sunlight incident surface) of the upper glass plate g3. .
In the present embodiment, as shown in FIG. 24, the first region E1 in which the dye-sensitized solar cell element 111a is disposed is provided so as to match the size of the decorative portion 112, and the dye sensitization is performed. A sensitive solar cell 111 is formed.

In addition, a transmissive polarizing plate 114 is disposed at a position corresponding to the liquid crystal part 113a on the outer surface g31 of the upper glass sheet g3, and at a position corresponding to the liquid crystal part 113a on the outer surface g41 of the lower glass sheet g4. A polarizing plate 115 with a transflective reflector is provided.
Note that the EL light emitting element 116 is fixed to the inner wall 131 on the back surface side (the side opposite to the sunlight incident surface side) of the second housing 130 via the substrate 117.

  In the cellular phone 1000, when a predetermined key of the key input unit 121 is input or when the second casing 130 is rotated from the folded state, the display drive circuit unit 904 (see FIG. 22). A light emission signal is output from the EL light emitting element 12 to the EL light emitting element 12, and light is emitted from the EL light emitting element 12 to the dye-sensitized solar cell element 111a and the liquid crystal part 113a, so that the display of the decoration part 112 and the liquid crystal display part 113 can be visually recognized. It is like that.

As described above, according to the cellular phone 1000 of the tenth embodiment, the dye-sensitized solar cell disposed in the region between the pair of light transmission substrates (the upper glass plate g3 and the lower glass plate g4) and the pair of light transmission substrates. A light-transmitting dye-sensitized solar cell 111 having a battery element 111 a and a dye-sensitized solar cell 111 disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 111. Since the EL light-emitting element 116 that irradiates light and the decorative portion 112 provided on the outer surface g11 of the upper glass plate g1 are provided, the dye-sensitized solar cell 111 is irradiated from the external light and the EL light-emitting element 116. It is possible to generate electricity by the light that is generated. Therefore, the power generation amount of the dye-sensitized solar cell 111 can be further increased.
In addition, since the EL light emitting element 116 (light irradiation member) is disposed on the side opposite to the sunlight incident surface side of the dye-sensitized solar cell 111, the light irradiation member and the solar cell are disposed on the same surface as in the past. Compared to the case, the EL light emitting element 116 having a wider light emitting area can be disposed, and the light emission amount can be increased.
Further, since the letter 112a is printed on the outer surface g31 of the upper glass plate g3, the upper glass plate g3 itself has a function of decoration, so that it is not necessary to provide a decorative member for decoration separately, and the decoration device 110 is made thinner. it can.

  The light emitted from the EL light emitting element 116 passes through the decoration device 110 (the dye-sensitized solar cell element 111a and the liquid crystal part 113a) and reaches the sunlight incident surface side of the wristwatch 900. Accordingly, the EL portion 116 and the liquid crystal display portion 113 can be irradiated with the light by causing the EL light emitting element 116 to emit light in a dark place, so that the time, decoration, and the like indicated by the wristwatch 900 can be visually recognized. .

  Moreover, in the structure which forms the general liquid crystal display part 113 that sandwiches the liquid crystal part 113a between the upper glass sheet g3 and the lower glass sheet g4, the dye-sensitized solar cell 111 is also composed of the upper glass sheet g3 and the lower glass sheet g4. Therefore, it is not necessary to provide the dye-sensitized solar cell 111 and the liquid crystal display unit 113 in the thickness direction, and the decoration device 110 can be thinned. As a result, the mobile phone 1000 Can be made thinner.

In addition, although the decoration part 112 of the decoration apparatus 110 of the mobile phone 1000 showed the structure by which only the character 112a was printed on the upper glass g3, the figure etc. which printed a logo mark etc. may be printed. The outer surface g31 of the upper glass plate g3 may be decorated by typesetting or pasting or etching as shown in the second or third embodiment.
In addition, the decoration portion 112 is not limited to the outer surface g31 of the upper glass sheet g3, and may be, for example, the outer surface g41 (the surface on the EL light emitting element 12 side) of the lower glass sheet g4. .
Moreover, it is good also as a structure which provides LED62 and the light-guide plate 63 which were shown in Embodiment 6 instead of providing the EL light emitting element 116. FIG.
Furthermore, it is good also as a structure provided with the member etc. which correspond to the light transmissive decorative board 71 shown in Embodiment 7. FIG.

  In the above embodiments, wristwatches and mobile phones have been described as examples of electronic devices. However, the present invention is not limited to this, and electronic devices include PDAs, personal computers, automobile meters, and the like. Various electronic devices may be used.

In addition, the time character of the decoration part may form, for example, a numeral such as an Arabic numeral or a Roman numeral, or a figure such as a circle or an ellipse.
Further, the characters of the decoration part may constitute, for example, a logo mark such as a company name and a product name.
Further, the number of time characters and characters and the positions of the characters are not limited.

  Moreover, you may form a decoration part combining each above-mentioned printing, typesetting or sticking, and an etching.

  In addition, as a dye in the dye-sensitized solar cell 11, a ruthenium-based dye is exemplified, but a merocyanine-based, coumarin-based, phenanthroline-based dye, or the like can also be used as the dye.

  In addition, it is needless to say that other specific detailed structures can be appropriately changed.

1 is a partially omitted plan view showing a wristwatch of Embodiment 1 according to the present invention. It is sectional drawing of the wristwatch in the II-II line of FIG. It is an enlarged view of the principal part of the wristwatch of FIG. It is a block diagram which shows the principal part structure of the wristwatch of FIG. It is sectional drawing which shows the wristwatch of Embodiment 2 concerning this invention. It is an enlarged view of the principal part of the wristwatch of FIG. It is sectional drawing which shows the wristwatch of Embodiment 3 concerning this invention. It is an enlarged view of the principal part of the wristwatch of FIG. It is sectional drawing which shows the wristwatch of Embodiment 4 concerning this invention. It is an enlarged view of the principal part of the wristwatch of FIG. It is sectional drawing which shows the wristwatch of Embodiment 5 concerning this invention. It is an enlarged view of the principal part of the wristwatch of FIG. It is sectional drawing which shows the wristwatch of Embodiment 6 concerning this invention. It is an enlarged view of the principal part of the wristwatch of FIG. It is sectional drawing which shows the wristwatch of Embodiment 7 concerning this invention. It is an enlarged view of the principal part of the wristwatch of FIG. It is sectional drawing which shows the wristwatch of Embodiment 8 concerning this invention. It is an enlarged view of the principal part of the wristwatch of FIG. It is a partially omitted plan view showing a wristwatch of a ninth embodiment according to the present invention. It is sectional drawing of the wristwatch in the XX-XX line of FIG. It is an enlarged view of the principal part of the wristwatch of FIG. It is a block diagram which shows the principal part structure of the wristwatch of FIG. It is a top view which shows the mobile telephone of Embodiment 10 concerning this invention. It is sectional drawing of the principal part of the mobile telephone in the XXIV-XXIV line | wire of FIG.

Explanation of symbols

2, 2a Watch case (equipment case)
8 Analog pointer mechanism (drive unit)
8a, 94 Pointer 10, 20, 30, 40, 50, 60, 70, 80, 90, 110 Decoration device 11, 91, 111 Dye-sensitized solar cell (solar cell)
11a, 91a, 111a Dye-sensitized solar cell element 12, 116 EL light emitting element (light irradiation member)
13, 21, 31, 93, 112 Decoration part 13a, 21a, 31a, 93a, 112a Time character (figure)
13b 21b, 31b, 93b, 112b Character (character)
61 light irradiation member 62 LED (light irradiation member)
63 Light guide plate (light irradiation member)
100, 200, 300, 400, 500, 600, 700, 800, 900 Wristwatch (electronic equipment)
130 Second housing (equipment case)
1000 Mobile phone (electronic equipment)
g1, g3 Upper glass (a pair of light transmitting substrates)
g2, g4 Lower glass (a pair of light transmitting substrates)

Claims (17)

A light transmissive solar cell having a pair of light transmissive substrates and a dye-sensitized solar cell element disposed in a region between the pair of light transmissive substrates;
A light irradiating member disposed on the side opposite to the solar light incident surface side of the solar cell and irradiating the solar cell with light,
A decorative portion provided on at least one of the pair of light transmissive substrates;
A decoration device comprising:   The decoration device according to claim 1, wherein the decoration portion is printed on an outer surface of at least one of the pair of light transmission substrates.   The decoration device according to claim 1, wherein the decoration part is typeset or affixed to an outer surface of at least one of the pair of light transmission substrates.   The decoration device according to any one of claims 1 to 3, wherein the decoration part is formed by etching on an outer surface of at least one of the pair of light transmission substrates. The light irradiation member is:
A light emitting element that emits light;
A light guide plate that introduces light emitted by the light emitting element and irradiates the light toward the solar cell;
The decoration device according to any one of claims 1 to 4, further comprising: A light-transmitting solar cell having a pair of light-transmitting substrates and a dye-sensitized solar cell element disposed in a region between the pair of light-transmitting substrates; A light irradiating member disposed to irradiate the solar cell with light;
A decorative portion provided on the outer surface of the light irradiation member;
A decoration device comprising:   The decoration device according to claim 6, wherein the decoration portion is printed on a light irradiation outer surface of the light irradiation member.   The decoration device according to claim 6, wherein the decoration portion is typeset or affixed to a light irradiation outer surface of the light irradiation member. The light irradiation member is:
A light emitting element that emits light;
A light guide plate that introduces light emitted by the light emitting element and irradiates the light toward the solar cell;
With
The decoration device according to any one of claims 6 to 8, wherein the decoration portion is formed on a light irradiation outer surface of the light guide plate. A light transmissive solar cell having a pair of light transmissive substrates and a dye-sensitized solar cell element disposed in a region between the pair of light transmissive substrates;
A light irradiating member disposed on the side opposite to the solar light incident surface side of the solar cell and irradiating the solar cell with light,
A decorative plate having light transmittance disposed on the solar light incident surface side of the solar cell;
A decorative portion formed on the decorative plate and including at least one of a figure, a pattern, and characters;
A decoration device comprising: A light transmissive solar cell having a pair of light transmissive substrates and a dye-sensitized solar cell element disposed in a region between the pair of light transmissive substrates;
A decorative board having light permeability disposed on the opposite side of the solar light incident surface of the solar cell;
A light irradiating member disposed on the side opposite to the sunlight incident surface side of the decorative plate and irradiating light to the solar cell;
A decorative portion formed on the decorative plate and including at least one of a figure, a pattern, and characters;
A decoration device comprising:   The decoration device according to claim 10 or 11, wherein the decoration part is printed on a sunlight incident surface of the decoration plate.   The decoration device according to claim 10 or 11, wherein the decoration portion is typeset or affixed to a sunlight incident surface of the decoration plate.   The decoration device according to claim 10 or 11, wherein the decoration part is formed by etching on a sunlight incident surface of the decoration plate. A liquid crystal display unit including the pair of light transmission substrates and a liquid crystal unit disposed between the pair of light transmission substrates and a region different from a region where the dye-sensitized solar cell element is disposed; ,
The light irradiation member is:
The light is irradiated to both a region in which the dye-sensitized solar cell element is disposed and a region in which the liquid crystal unit is disposed. Decoration equipment.   An electronic apparatus comprising the decoration device according to any one of claims 1 to 15 arranged in an apparatus case. The solar cell and the decorative part are arranged on the sunlight incident surface side, and a pointer for indicating the time,
A drive unit for driving the pointer,
The electronic device according to claim 16, wherein the decoration portion includes a time character indicated by the pointer.

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