JPS6110997B2 - - Google Patents
Info
- Publication number
- JPS6110997B2 JPS6110997B2 JP51015691A JP1569176A JPS6110997B2 JP S6110997 B2 JPS6110997 B2 JP S6110997B2 JP 51015691 A JP51015691 A JP 51015691A JP 1569176 A JP1569176 A JP 1569176A JP S6110997 B2 JPS6110997 B2 JP S6110997B2
- Authority
- JP
- Japan
- Prior art keywords
- solar cell
- solar
- dial
- electrode
- cover glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000758 substrate Substances 0.000 claims description 21
- 239000006059 cover glass Substances 0.000 claims description 11
- 239000010408 film Substances 0.000 description 16
- 238000009792 diffusion process Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000012212 insulator Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- CMSGUKVDXXTJDQ-UHFFFAOYSA-N 4-(2-naphthalen-1-ylethylamino)-4-oxobutanoic acid Chemical compound C1=CC=C2C(CCNC(=O)CCC(=O)O)=CC=CC2=C1 CMSGUKVDXXTJDQ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Description
【発明の詳細な説明】
本発明は動力源として太陽電池を用いた太陽電
池時計に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solar cell watch that uses a solar cell as a power source.
本発明は導電膜によつて配線の施された絶縁物
基板に、受光面側にコンタクト部分を有する太陽
電池を密着せしめ、太陽電池電源の性能を向上さ
せると共に太陽電池パネルの占める体積を縮少し
た太陽電池時計に関する。 The present invention improves the performance of the solar cell power source and reduces the volume occupied by the solar cell panel by attaching a solar cell having a contact portion on the light-receiving surface side to an insulating substrate wired with a conductive film. This article relates to solar powered watches.
本発明の目的は、時計の動力源である太陽電池
の性能を向上させることにある。本発明の他の目
的は太陽電池パネルの体積を縮少することにあ
る。本発明のさらに他の目的は、太陽電池パネル
の組立て工程を簡単にすることにある。 An object of the present invention is to improve the performance of solar cells that are the power source of watches. Another object of the present invention is to reduce the volume of a solar panel. Still another object of the present invention is to simplify the process of assembling a solar cell panel.
本発明のさらに他の目的は太陽電池の占める面
積を小さくし、デザインの自由度を大きくするこ
とにある。 Still another object of the present invention is to reduce the area occupied by the solar cell and increase the degree of freedom in design.
従来から太陽電池時計に用いられてきた太陽電
池パネルは次の欠点がある。 The solar cell panels that have been conventionally used in solar cell watches have the following drawbacks.
リーク電流が多いため変換効率が悪い。特に
低照度における変換効率の低下は著しい。 Conversion efficiency is poor due to large leakage current. The reduction in conversion efficiency is particularly significant at low illuminance.
太陽電池パネルの面積が大きい。これは、変
換効率の悪いことに図るもので、必要量の光エ
ネルギーを吸収するためには大きな面積のパネ
ルが必要となる。従来の針表示時計では文字板
全面に太陽電池をはりつけているため、文字板
の色が限られてしまうことと、文字板に模様な
どを入れることができずデザイン上の制約を受
ける。 The area of the solar panel is large. This is intended to reduce conversion efficiency, and requires a large panel area to absorb the required amount of light energy. Conventional hand-display watches have solar cells attached to the entire surface of the dial, which limits the colors available for the dial and limits the design, as it is not possible to add patterns to the dial.
組立てに時間がかかる。第１図で各ユニツト
セル間の隙間が均一になるように配列し、ハン
ダ付けをするのはかなり熟練を要する。しかも
１枚ずつハンダ付けをしなければならないので
費やす時間は大きい。 It takes time to assemble. As shown in FIG. 1, it takes considerable skill to arrange and solder the unit cells so that the gaps between them are uniform. Moreover, since you have to solder each piece one by one, it takes a lot of time.
文字板が厚くなる。 The dial becomes thicker.
以上の欠点についてさらに詳しく説明する。 The above drawbacks will be explained in more detail.
従来、時計に用いられている太陽電池電源の構
造を第１図に示す。第１図はプリント基板１に太
陽電池のユニツトセル２ａ，２ｂ、……をハンダ
付けして、文字板を形成したものである。図は構
造をわかりやすくするために文字板を直径方向に
切断した場合の断面と上表面を描いてある。 FIG. 1 shows the structure of a solar battery power source conventionally used in watches. In FIG. 1, unit cells 2a, 2b, . . . of solar cells are soldered to a printed circuit board 1 to form a dial plate. In order to make the structure easier to understand, the figure depicts the cross section and top surface of the dial cut in the diametrical direction.
ユニツトセルの正負両電極はいずれも太陽電池
の裏側にあり、プリント基板１のスルーホール３
を通して、プリント基板１の裏側に施こされた配
線４にハンダ付けされている。カレンダー部分に
ついてはプリント基板１の下に曜車６と日車７が
接して回転しており、窓枠５を通して曜日と日付
けが見える構造になつている。このような構造で
はプリント基板と太陽電池の厚さを合せると約１
mmとなり、太陽電池を用いない従来の時計の文字
板に比べると３〜４倍の厚さである。そのためカ
レンダー窓枠５の中に見える文字が非常に深い位
置となり、真上からのぞき込まないと見えない。
ユニツトセルを文字板の直径方向に切断すると、
断面図は第２図のようになつている。 Both the positive and negative electrodes of the unit cell are located on the back side of the solar cell, and are connected to the through hole 3 of the printed circuit board 1.
It is soldered to the wiring 4 placed on the back side of the printed circuit board 1 through the wire. As for the calendar part, a day wheel 6 and a date wheel 7 are rotating in contact with each other under the printed circuit board 1, and the day of the week and date can be seen through the window frame 5. In such a structure, the combined thickness of the printed circuit board and solar cell is approximately 1
mm, which is three to four times thicker than the dials of conventional watches that do not use solar cells. Therefore, the characters visible inside the calendar window frame 5 are located at a very deep position and cannot be seen unless you look directly above.
When the unit cell is cut in the diameter direction of the dial,
The cross-sectional view is as shown in FIG.
すなわち、Ｎ型半導体基板８の表面にｐ型拡散
層９を形成し、裏側にＰ型電極１０を付ける。さ
らに裏側にＰ型拡散層の一部をメサエツチで除去
してＮ型基板を露出させ、そこにＮ型電極１１を
つける。 That is, a p-type diffusion layer 9 is formed on the front surface of an N-type semiconductor substrate 8, and a P-type electrode 10 is attached to the back side. Furthermore, a part of the P-type diffusion layer on the back side is removed by mesa etching to expose the N-type substrate, and the N-type electrode 11 is attached thereto.
太陽電池のリーク電流が大きい場合には短絡電
流と開放電圧が小さく、したがつて変換効率の悪
いことは周知の通りであるが、第２図の構造をし
た従来の時計用太陽電池では非常にリークが大き
い。その理由として電極１１を付けるためのメサ
エツチで接合部１２が露出してしまうこと、Ｐ型
拡散層９をウエハの横面をまわして裏面でＰ型電
極１０をとつていることである。 It is well known that when the leakage current of a solar cell is large, the short circuit current and open circuit voltage are small, and therefore the conversion efficiency is poor. Big leak. The reasons for this are that the bonding portion 12 is exposed during the mesa etching for attaching the electrode 11, and that the P-type diffusion layer 9 is wrapped around the side surface of the wafer and the P-type electrode 10 is formed on the back surface.
ウエハの横面は、ウエハの切断時に発生する多
結晶層が多いため接合特性が悪く、さらに使用時
においてもかけが生じやすい。このような場所の
拡散層を利用するとリーク電流が大きくなるのは
避けられない。 The lateral surface of the wafer has poor bonding properties because it has many polycrystalline layers generated when the wafer is cut, and furthermore, chipping is likely to occur during use. If a diffusion layer is used in such a location, leakage current will inevitably increase.
リーク電流が大きいため変換効率が低下し、面
積の大きな太陽電池が必要となり文字板全面に太
陽電池を敷きつめなければならない。 Due to the large leakage current, the conversion efficiency decreases, and a large area of solar cells is required, which means that the entire face of the dial must be covered with solar cells.
近年の欠点を除去する方法として、受光面
（前面）側にコンタクト電極を形成し、しかも前
面をSiO2膜で保護したユニツトセル１５を配線
１３の施された絶縁物基板１４の上に接着し、20
〜30μｍのワイヤ１６のボンデイングによつて電
気的接続を成す方法も一部で試みられている。 As a method to eliminate the recent drawbacks, a unit cell 15 with a contact electrode formed on the light-receiving surface (front) side and the front surface protected with a SiO 2 film is bonded onto an insulating substrate 14 on which wiring 13 is provided. 20
Some attempts have also been made to form electrical connections by bonding wires 16 of ~30 μm.
しかし、第３図に示すような太陽電池パネルを
針表示式腕時計の文字板に用いると、針がワイヤ
ー１６に接触しないようにするために針と文字板
との間隙を大きくしなければならない。したがつ
て腕時計が厚いものとなつて好ましくない。 However, when a solar cell panel as shown in FIG. 3 is used on the dial of a hand display wristwatch, the gap between the hands and the dial must be increased to prevent the hands from coming into contact with the wire 16. Therefore, the wristwatch becomes thick, which is not desirable.
液晶腕時計や発光ダイオード腕時計などのデジ
タル時計の場合も同様であつて、太陽電池パネル
と保護ガラスカバーとの間隙が大きくなつて好ま
しくない。 The same applies to digital watches such as liquid crystal watches and light emitting diode watches, which is undesirable because the gap between the solar cell panel and the protective glass cover becomes large.
本発明は以上の欠点をすべて除去したものであ
つて、実施例について説明する。 The present invention eliminates all the above-mentioned drawbacks and will now be described with reference to embodiments.
太陽電池のユニツトセルは第４図ａの如く受光
面積が長方形であるが、断面は第４図ｂのような
構造をしている。第２図に示したものと比べて大
きな違いは、Ｎ形半導体基板１７においてもＰ形
拡散層１８が受光面にのみ形成されていること、
Ｐ形電極１９とＮ形電極２０とが受光面側にある
こと、そして、さらに電極部分を除いて受光面全
体がSiO2膜２１で被われていることである。 The unit cell of the solar cell has a rectangular light-receiving area as shown in FIG. 4a, but its cross section has a structure as shown in FIG. 4b. The major difference compared to that shown in FIG. 2 is that the P-type diffusion layer 18 is formed only on the light-receiving surface of the N-type semiconductor substrate 17 as well.
The P-type electrode 19 and the N-type electrode 20 are on the light-receiving surface side, and the entire light-receiving surface except for the electrode portion is covered with the SiO 2 film 21.
第４図の構造にすることによつて太陽電池の性
能は非常に向上した。たとえば１Ｖの逆方向電圧
を印加したときの電流は、従来の太陽電池では１
〜10μＡ／cm2であるのに対し、新しい構造では約
３桁少なく、数nA／cm2である。また、新しい構
造では短絡電流が1.3〜1.5倍、開放電圧が約1.1倍
大きく、変換効率も従来のものに比べて約1.5倍
である。 By adopting the structure shown in FIG. 4, the performance of the solar cell was greatly improved. For example, when a reverse voltage of 1V is applied, the current in a conventional solar cell is 1V.
~10 μA/cm 2 , whereas the new structure is about three orders of magnitude lower, at a few nA/cm 2 . In addition, the new structure has a short-circuit current 1.3 to 1.5 times higher, an open circuit voltage approximately 1.1 times higher, and a conversion efficiency approximately 1.5 times higher than the conventional structure.
第５図は、第４図のＮ形電極２０を拡大して描
いたものである。したがつてＮ形電極２０の構造
は第５図に示す如くＡ蒸着膜２２、Cr蒸着膜
２３、Cu蒸着膜２４、Au蒸着膜２５、ハンダの
バンブ２６から成つている。第４図のＰ形電極１
９も同様の構造である。 FIG. 5 is an enlarged view of the N-type electrode 20 shown in FIG. Therefore, the structure of the N-type electrode 20, as shown in FIG. 5, consists of an A-deposited film 22, a Cr-deposited film 23, a Cu-deposited film 24, an Au-deposited film 25, and a solder bump 26. P-type electrode 1 in Figure 4
9 also has a similar structure.
次に、第６図の如く、ネサ膜２８によつて配線
を施されたガラス基板２７を用い、太陽電池の電
極と相対する位置に第５図の構造をしたコンタク
ト電極２９を蒸着とホトエツチングで形成する。 Next, as shown in FIG. 6, using a glass substrate 27 wired with a Nesa film 28, a contact electrode 29 having the structure shown in FIG. 5 is formed by vapor deposition and photoetching at a position facing the electrode of the solar cell. Form.
このようなガラス基板と太陽電池とを互に電極
が内側になるように向い合せて接触させたのち、
矢印Ａの方向から赤外線を照射すると電極１９，
２０および２９のハンダがとけて、太陽電池がガ
ラス基板に接続される。したがつて従来のように
ハンダゴテでユニツトセルを１枚ずつハンダ付け
する必要もなく、あらかじめユニツトセルを並べ
ておき、その上からガラス基板を押しつけ赤外線
を当てるだけで、一度に全部ユニツトセルをハン
ダ付けできる。この方法は工程が簡単なうえに、
時計も短かくてすむものである。また、太陽電池
電源を構成するリミツタ回路に含まれる抵抗はホ
トエツチングで配線２８を作るとき、ネサ膜の一
部を用いて作り得る。あるいはネサ膜とは別の抵
抗材料の薄膜を透明絶縁物基板２７の上に形成
し、抵抗を作りうる。いずれにしても従来のよう
に体績の大きな外付け抵抗が不要となり、時計体
の体積を減少させることができる。 After the glass substrate and the solar cell are brought into contact with each other with the electrodes facing each other,
When infrared rays are irradiated from the direction of arrow A, the electrode 19,
The solders 20 and 29 are melted, and the solar cell is connected to the glass substrate. Therefore, there is no need to solder the unit cells one by one with a soldering iron as in the past, but all the unit cells can be soldered at once by arranging the unit cells in advance, pressing a glass substrate onto them, and applying infrared rays. This method has a simple process, and
Clocks also need to be shorter. Further, the resistor included in the limiter circuit constituting the solar cell power supply can be made using a part of the Nesa film when forming the wiring 28 by photo-etching. Alternatively, a resistor can be created by forming a thin film of a resistive material other than the NESA film on the transparent insulator substrate 27. In any case, there is no need for a large external resistor as in the past, and the volume of the watch body can be reduced.
本発明は太陽電池の性能のよい前面電極形で用
いることができるので、針表示式の水晶腕時計の
電源に太陽電池を用いる場合には面積は約１cm2程
度でよい。したがつて、第７図に示すように前述
の太陽電池パネルをカバーガラスと兼用できる。 Since the present invention can be used with a front electrode type solar cell with good performance, when a solar cell is used as a power source for a hand display type quartz wristwatch, the area may be about 1 cm 2 . Therefore, as shown in FIG. 7, the aforementioned solar cell panel can also be used as a cover glass.
第７図は腕時計を切断した図、３０は太陽電池
パネルの透明絶縁物基板、３１は太陽電池、３２
は文字板、３３はムーブメント、３４は針であ
る。すなわち、透明絶縁物基板３０と太陽電池３
１とから成る太陽電池パネルがカバーガラスの役
目を果している。 Figure 7 is a cutaway view of the wristwatch, 30 is a transparent insulator substrate of a solar panel, 31 is a solar cell, 32
33 is the dial, 33 is the movement, and 34 is the hands. That is, the transparent insulator substrate 30 and the solar cell 3
A solar cell panel consisting of 1 serves as a cover glass.
このような構造にすることによつて、従来の文
字板に太陽電池を配列していた方法に比べての利
点は、
カレンダーが見やすくなる。 The advantage of this structure over the conventional method of arranging solar cells on the dial is that it makes the calendar easier to read.
文字板に模様記号を入れたり、色をかえたり
できる。 You can add pattern symbols to the dial and change the color.
などである。これは、太陽電池の性能がよいこと
に起因し、面積が縮少できることに因るものであ
るが、針表示の腕時計においてはその効果は大き
いものである。etc. This is due to the good performance of the solar cell and the ability to reduce the area, but this effect is significant in wristwatches with hand displays.
さらに発光ダイオードが液晶などのデジタル腕
時計においては、第６図のガラス基板をカバーガ
ラスと兼用できるので、従来のように太陽電池パ
ネルの上にあらためてカバーガラスをつける場合
に比べ材料も少なく、厚さも薄い腕時計となる。 Furthermore, in digital watches with light emitting diodes such as liquid crystals, the glass substrate shown in Figure 6 can also be used as a cover glass, so it requires less material and is thinner than the conventional case of attaching a cover glass on top of the solar panel. It becomes a thin watch.
第８図と第９図は本発明の太陽電池の一例で前
者は針表示の腕時計、後者はデジタル腕時計で３
５が太陽電池パネルである。 Figures 8 and 9 are examples of the solar cell of the present invention; the former is a wristwatch with hand display, and the latter is a digital wristwatch with 3.
5 is a solar panel.
上述の如く本発明は、時計のカバーガラスに透
明電極を設け、受光側に第一、第二接続電極を設
けた太陽電池パネルをカバーガラス下に配置し透
明電極と第一、第二接続電極とを接続したから、
受光部の反対側で接続電極を設けた従来の太陽電
池に比べ、PN接合の露出部がない為この露出部
における電流リークが生ずることはなく、又、裏
側に配線を引きまわす為のシリコン基板側部の拡
散層を設ける必要がないので、側におけるリーク
電流は生ぜず信頼性を向上することができる。
又、カバーガラス直下に太陽電池パネルを設けた
から、光電変換効率を著しく向上することができ
る。 As described above, in the present invention, a transparent electrode is provided on the cover glass of a watch, and a solar cell panel with first and second connection electrodes provided on the light-receiving side is placed under the cover glass. Since I connected the
Compared to conventional solar cells, which have a connection electrode on the opposite side of the light-receiving part, there is no exposed part of the PN junction, so there is no current leakage at this exposed part, and there is also a silicon substrate on the back side for wiring. Since it is not necessary to provide a diffusion layer on the side, leakage current does not occur on the side, and reliability can be improved.
Furthermore, since the solar cell panel is provided directly under the cover glass, the photoelectric conversion efficiency can be significantly improved.
第１図は従来の太陽電池文字板の上表面と断
面。第２図はユニツトセルの断面図。第３図は受
光面側にコンタクトを形成した太陽電池の断面
図。第４図は本発明の太陽電池。第５図はＮ型電
極の拡大図。第６図は太陽電池と透明絶縁物基板
との相対位置の関係。第７図は本発明の太陽電池
パネルをカバーガラスに用いた針表示式腕時計の
切断面。第８図と第９図は本発明の太陽電池時
計。
１…プリント基板、２ａ，２ｂ…太陽電池、３
…スルーホール、４…配線、５…窓枠、６…曜
車、７…日車、８…Ｎ型半導体基板、９…Ｐ型拡
散層、１０…Ｐ型電極、１１…Ｎ型電極、１２…
接合部、３…配線、１４…絶縁物基板、１５…太
陽電池のユニツトセル、１６…ワイヤー、１７…
Ｎ型半導体基板、１８…Ｐ型拡散層、１９…Ｐ型
電極、２０…Ｎ型電極、２１…SiO2膜、２２…
Ａ蒸着膜、２３…Cr蒸着膜、２４…Cu蒸着
膜、２５…Au蒸着膜、２６…ハンダバンプ、２
７…透明絶縁物基板、２８…透明導電膜の配線、
２９…コンタクト用電極、３０…透明絶縁物基
板、３１…太陽電池、３２…文字板、３３…ムー
ブメント、３４…針、３５…太陽電池パネル。
Figure 1 shows the top surface and cross section of a conventional solar cell dial. FIG. 2 is a cross-sectional view of the unit cell. FIG. 3 is a cross-sectional view of a solar cell in which a contact is formed on the light-receiving surface side. FIG. 4 shows a solar cell of the present invention. FIG. 5 is an enlarged view of the N-type electrode. Figure 6 shows the relative positional relationship between the solar cell and the transparent insulator substrate. FIG. 7 is a cross-sectional view of a hand display wristwatch using the solar cell panel of the present invention as a cover glass. Figures 8 and 9 show solar cell watches of the present invention. 1...Printed circuit board, 2a, 2b...Solar cell, 3
...Through hole, 4...Wiring, 5...Window frame, 6...Day wheel, 7...Date wheel, 8...N type semiconductor substrate, 9...P type diffusion layer, 10...P type electrode, 11...N type electrode, 12 …
Joint portion, 3... Wiring, 14... Insulator substrate, 15... Unit cell of solar cell, 16... Wire, 17...
N-type semiconductor substrate, 18... P-type diffusion layer, 19... P-type electrode, 20... N-type electrode, 21... SiO 2 film, 22...
A vapor deposited film, 23...Cr vapor deposited film, 24...Cu vapor deposited film, 25...Au vapor deposited film, 26...solder bump, 2
7...Transparent insulator substrate, 28...Transparent conductive film wiring,
29... Contact electrode, 30... Transparent insulator substrate, 31... Solar cell, 32... Dial plate, 33... Movement, 34... Hand, 35... Solar cell panel.
Claims (1)
バーガラスに施された配線用透明導電膜と、受光
面側に形成された第一及び第二接続電極を有する
太陽電池パネルからなり、該太陽電池は該カバー
ガラス下に配置され、該第一及び第二接続電極は
該配線用透明導電膜の一部に接続してなることを
特徴とする太陽電池時計。1. Consists of a solar cell panel having a cover glass made of a transparent insulating substrate, a transparent conductive film for wiring applied to the cover glass, and first and second connection electrodes formed on the light-receiving surface side. A solar cell watch, characterized in that the first and second connection electrodes are arranged under the cover glass and connected to a part of the transparent conductive film for wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1569176A JPS5299089A (en) | 1976-02-16 | 1976-02-16 | Solar cell wristwatch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1569176A JPS5299089A (en) | 1976-02-16 | 1976-02-16 | Solar cell wristwatch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5299089A JPS5299089A (en) | 1977-08-19 |
| JPS6110997B2 true JPS6110997B2 (en) | 1986-04-01 |
Family
ID=11895773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1569176A Granted JPS5299089A (en) | 1976-02-16 | 1976-02-16 | Solar cell wristwatch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5299089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH036813Y2 (en) * | 1986-06-30 | 1991-02-20 |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529768A (en) * | 1978-08-24 | 1980-03-03 | Casio Comput Co Ltd | Miniature electronic apparatus with solar cell |
| JPS57155494U (en) * | 1981-03-24 | 1982-09-30 | ||
| JPS5874190U (en) * | 1981-11-13 | 1983-05-19 | セイコーエプソン株式会社 | Analog electronic clock with solar battery |
| JPS58159760U (en) * | 1982-04-20 | 1983-10-25 | セイコーエプソン株式会社 | thin film solar cell structure |
| JPS6288989U (en) * | 1986-10-17 | 1987-06-06 |
-
1976
- 1976-02-16 JP JP1569176A patent/JPS5299089A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH036813Y2 (en) * | 1986-06-30 | 1991-02-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5299089A (en) | 1977-08-19 |
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