JPH06161362A - Illumination type display board - Google Patents

Illumination type display board

Info

Publication number
JPH06161362A
JPH06161362A JP4311798A JP31179892A JPH06161362A JP H06161362 A JPH06161362 A JP H06161362A JP 4311798 A JP4311798 A JP 4311798A JP 31179892 A JP31179892 A JP 31179892A JP H06161362 A JPH06161362 A JP H06161362A
Authority
JP
Japan
Prior art keywords
light
light emitting
emitting element
power source
display panel
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.)
Withdrawn
Application number
JP4311798A
Other languages
Japanese (ja)
Inventor
Yoshiaki Iizuka
義明 飯塚
Teruo Tanaka
照夫 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP4311798A priority Critical patent/JPH06161362A/en
Publication of JPH06161362A publication Critical patent/JPH06161362A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

PURPOSE:To make the brightness of a light emitting element correspond to the intensity of external light and reduce the energy by directing the photodetection surface of a 2nd power source to receive the external light irradiating the light emission surface of the light emitting element. CONSTITUTION:Many light emitting elements (LED, electric bulb, etc.) 3 for displaying information by light emission are arranged in the main body 2A of the illumination type display board 1A. Further, A solar battery panel (2nd power source) is provided surrounding the periphery of the light emitting elements 3. This solar battery panel 14 generates an electromotive force with the light irradiating the photodetection surface 14a and its electromotive current is used as the power source of the light emitting elements 3. Further, the photodetection surface 14a is positioned in level with the light emitting surfaces 3 of the light emitting elements 3; and external light X which travels straight to irradiate the light emission surfaces 3a irradiates even the photodetection surface 14a and external light Y which travels straight in other directions not to irradiate the light emission surfaces 3a does not irradiate the photodetection surface 14a.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、道路表示盤のように、
主として屋外にて文字等の情報を照光表示する照光式表
示盤に関する。BACKGROUND OF THE INVENTION The present invention, like a road display panel,
The present invention mainly relates to an illuminated display panel that illuminates and displays information such as characters outdoors.

【０００２】[0002]

【従来の技術】図４に照光式表示盤の例として道路表示
盤の外観図を、図５及び図６に従来の照光式表示盤の断
面図及び回路図を示す。2. Description of the Related Art FIG. 4 shows an external view of a road display panel as an example of an illuminated display panel, and FIGS. 5 and 6 show sectional views and circuit diagrams of a conventional illuminated display panel.

【０００３】図５は、図４のＡ−Ａ線断面図を示したも
のであり、照光式表示盤１の本体２には、情報を発光表
示するための発光素子（ＬＥＤや電球などにて構成され
る）３が多数設けられており、これら発光素子３の発光
面３ａ側には、発光素子３を雨水や塵埃から保護する為
の透明カバー５が設けられている。FIG. 5 is a sectional view taken along the line AA of FIG. 4, in which the main body 2 of the illuminated display panel 1 is a light emitting element (such as an LED or a light bulb) for displaying information in a light emitting manner. A large number of (structured) 3 are provided, and a transparent cover 5 for protecting the light emitting element 3 from rainwater and dust is provided on the light emitting surface 3a side of these light emitting elements 3.

【０００４】また、発光素子３（Ｌ1 ，Ｌ2 ，…，
Ｌn ）を点滅させる回路は図６に示す構成となってい
る。ＡＣ１００Ｖの交流電源６はトランス７にて降圧さ
れ、整流器８にて整流されて、定電圧直流電源とされ
る。この直流電源は、各発光素子Ｌ1，Ｌ2 ，…，Ｌn
の電源として用いられると共に、発光素子の発光制御回
路９の駆動電源として用いられる。そして、道路管制室
等より送られる発光制御信号に基いて発光制御回路９は
スイッチＳ1 ，Ｓ2 ，…，Ｓn をＯＮ−ＯＦＦさせ、発
光素子３を点滅させる。Further, the light emitting elements 3 (L 1 , L 2 , ...,
The circuit for blinking L n ) has the configuration shown in FIG. The AC 100V AC power supply 6 is stepped down by the transformer 7 and rectified by the rectifier 8 to be a constant voltage DC power supply. This DC power supply is used for each light emitting element L 1 , L 2 , ..., L n.
Is used as a power source for driving the light emitting control circuit 9 of the light emitting element. Then, based on the light emission control signal sent from the road control room or the like, the light emission control circuit 9 turns ON / OFF the switches S 1 , S 2 , ..., S n, and causes the light emitting element 3 to blink.

【０００５】しかしながら従来の照光式表示盤１では、
晴天時に発光面３ａに日射を受けた場合に、発光してい
る発光素子３と発光していない発光素子３との間のコン
トラスト及び発光している発光素子３と本体盤面２ａと
の間のコントラストが小さくなり、光っている文字、図
形等の情報が見分け難くなるという不具合が生じてい
た。However, in the conventional illuminated display panel 1,
When the light emitting surface 3a is exposed to sunlight during fine weather, the contrast between the light emitting element 3 that emits light and the light emitting element 3 that does not emit light and the contrast between the light emitting element 3 that emits light and the main body board surface 2a However, there is a problem that information such as a shining character and a figure becomes difficult to discriminate because the size becomes small.

【０００６】この場合に、本体盤面２ａを黒色にするな
どして、発光している発光素子３と本体盤面２ａとの間
のコントラストを高めることは可能だが、光っていない
発光素子３との間のコントラストを高めることに関して
はあまり効果はなかった。また、発光素子３の電源電圧
を高くし、発光素子３の輝度を高めることによりコント
ラストを大きくすることも考えられるが、発光素子３の
輝度が必要以上に高いと夜間などには周囲とのコントラ
ストが大きすぎて、全体が光って見え、発光表示された
情報の判別が困難になるという問題があった。In this case, it is possible to increase the contrast between the light emitting element 3 emitting light and the body board surface 2a by making the body board surface 2a black, but between the light emitting element 3 not emitting light. It wasn't very effective at increasing the contrast. It is also conceivable to increase the contrast by increasing the power supply voltage of the light emitting element 3 and increasing the brightness of the light emitting element 3, but if the brightness of the light emitting element 3 is higher than necessary, the contrast with the surroundings will be increased at night. However, there is a problem that it is too large and the whole looks shining, and it is difficult to distinguish the information displayed by light emission.

【０００７】一方、図７に示す如く、照光式表示盤１の
外部の光を光センサ１１で感知して抵抗値制御回路１２
により回路の抵抗値を増減し、これにより、外光の強さ
に応じて発光素子３の輝度を変化させる構成とすること
も考えられる。しかし、この構成の場合は、発光素子３
の輝度が低い場合においても最も輝度が高い場合と同じ
電力を電源６は供給する必要がある（残余の電力は抵抗
にて消費される）。そのため、消費電力が大きくなり、
電源６が電池の場合にはすぐに消耗してしまうという欠
点がある。On the other hand, as shown in FIG. 7, the light sensor 11 senses the light outside the illuminated display panel 1 to detect the resistance value control circuit 12.
It is also conceivable that the resistance value of the circuit is increased or decreased to change the luminance of the light emitting element 3 according to the intensity of external light. However, in the case of this configuration, the light emitting element 3
Even when the brightness is low, the power source 6 needs to supply the same power as that when the brightness is highest (the remaining power is consumed by the resistor). Therefore, power consumption increases,
If the power source 6 is a battery, it has a drawback that it will be consumed immediately.

【０００８】[0008]

【発明が解決しようとする課題】上述の如く、上記照光
式表示盤では、晴天時に発光面に日射を受けた場合に、
発光している発光素子と発光していない発光素子との間
のコントラストが小さくなり、光っている文字、図形等
の情報が見分け難くなるという不具合があった。また、
単に発光素子の輝度を高くしたのでは夜間などに周囲と
のコントラストが大きすぎて、全体に光って見え、文字
や図形を判別できない状況が生じるという問題が生じ、
外部の光の強さに応じて抵抗値を変化させて発光素子の
輝度を変化させる構成としたのでは消費電力が大きくな
り過ぎるという問題がある。As described above, in the above-mentioned illuminated display panel, when the light emitting surface is exposed to sunlight during fine weather,
There is a problem that the contrast between the light emitting element that emits light and the light emitting element that does not emit light becomes small, and it becomes difficult to distinguish the information such as glowing characters and figures. Also,
Simply raising the brightness of the light emitting element causes a problem that the contrast with the surroundings is too great at night and the like, and the whole thing looks shining, and characters and figures cannot be distinguished.
If the resistance value is changed according to the intensity of external light to change the luminance of the light emitting element, there is a problem that the power consumption becomes too large.

【０００９】本発明はこのような従来の欠点を解決する
べくなされたものであり、発光素子の輝度をこの発光素
子の発光面に照射される外部の光の強さに対応した輝度
とすることができ、しかも、エネルギーも削減できる照
光式表示盤を提供することを目的とする。The present invention has been made to solve the above-mentioned conventional drawbacks, and makes the luminance of the light emitting element correspond to the intensity of external light applied to the light emitting surface of the light emitting element. It is an object of the present invention to provide an illuminated display panel that can be operated and that can reduce energy consumption.

【００１０】[0010]

【課題を解決するための手段】本発明は、発光素子を発
光させて情報を表示する照光式表示盤において、前記発
光素子に一定電圧の電力を供給する第１の電源と、太陽
電池にて構成され受光面に照射された光により生じた起
電力を前記発光素子に供給する第２の電源とを有し、こ
の第２の電源の受光面は前記発光素子の発光面を照射す
る外部の光を受け得る方向に向けられた構成となってい
る。SUMMARY OF THE INVENTION The present invention is an illumination type display panel for displaying information by causing a light emitting element to emit light, by using a first power source for supplying a constant voltage power to the light emitting element and a solar cell. And a second power supply for supplying an electromotive force generated by the light applied to the light-receiving surface to the light-emitting element, the light-receiving surface of the second power supply being external to the light-emitting surface of the light-emitting element. It is configured so that it can receive light.

【００１１】[0011]

【作用】本発明では、太陽電池で構成された第２の電源
の受光面は、発光素子の発光面に照射する外部の光を受
け得る方向に向けられているので、外部の光が発光面に
照射すると、この外部の光により起電力が生じ、この電
力が発光素子に供給されて発光素子の輝度を上げる。In the present invention, the light-receiving surface of the second power source composed of a solar cell is oriented so that it can receive the external light applied to the light-emitting surface of the light-emitting element. When the light is emitted to the light source, an electromotive force is generated by the external light, and this power is supplied to the light emitting element to increase the brightness of the light emitting element.

【００１２】[0012]

【実施例】以下、本発明の実施例を図１乃至図３を参照
して詳述する。Embodiments of the present invention will be described below in detail with reference to FIGS.

【００１３】図１は第１の実施例に係る照光式表示盤の
断面図、図２はその回路図を示したものである。FIG. 1 is a sectional view of an illuminated display panel according to the first embodiment, and FIG. 2 is a circuit diagram thereof.

【００１４】図１は図４に示した道路表示盤１のＡ−Ａ
線断面に相当する断面図であり、照光式表示盤１Ａの本
体２Ａには、情報を発光表示するための発光素子（ＬＥ
Ｄや電球等）３が多数配設されている。FIG. 1 is an AA of the road display panel 1 shown in FIG.
FIG. 3 is a cross-sectional view corresponding to a line cross-section, and a main body 2A of the illuminated display panel 1A has a light emitting element (LE for displaying information by light emission).
D, light bulbs, etc.) 3 are provided.

【００１５】また、発光素子３の周囲を囲むようにし
て、太陽電池パネル（第２の電源）１４が設けられてい
る。この太陽電池パネル１４は受光面１４ａに照射され
た光により起電力が生じる構成となっており、この起電
力は発光素子３の電源とされる。また、この受光面１４
ａは、発光素子３の発光面３ａと同一面上に位置付けら
れており、発光面３ａを照射する方向から直進する外部
の光Ｘは受光面１４ａにも照射され、発光面３ａを照射
することのない方向から直進する外部の光Ｙは受光面１
４ａを照射することもない。A solar cell panel (second power supply) 14 is provided so as to surround the light emitting element 3. The solar cell panel 14 has a structure in which an electromotive force is generated by the light with which the light receiving surface 14a is irradiated, and this electromotive force is used as a power source of the light emitting element 3. In addition, this light receiving surface 14
a is positioned on the same surface as the light emitting surface 3a of the light emitting element 3, and the external light X that travels straight from the direction of irradiating the light emitting surface 3a is also emitted to the light receiving surface 14a and illuminates the light emitting surface 3a. External light Y traveling straight from the direction without
There is no irradiation of 4a.

【００１６】尚、発光素子３の発光面３ａ及び太陽電池
パネル１４の受光面１４ａ側には、発光素子３及び太陽
電池パネル１４を雨水や塵埃から保護するための透明カ
バー５Ａが設けられている。A transparent cover 5A for protecting the light emitting element 3 and the solar cell panel 14 from rainwater and dust is provided on the light emitting surface 3a of the light emitting element 3 and the light receiving surface 14a of the solar cell panel 14. .

【００１７】また、発光素子３（Ｌ1 ，Ｌ2 ，…，
Ｌn ）を点滅させる回路は図２に示す構成となってい
る。Further, the light emitting elements 3 (L 1 , L 2 , ...,
The circuit for blinking L n ) has the configuration shown in FIG.

【００１８】ＡＣ１００Ｖの交流電源６はトランス７に
て降圧され、整流器８にて整流されて定電圧直流電源
（第１の電源）とされる。この直流電源は、各発光素子
Ｌ1 ，Ｌ2 ，…，Ｌn の電源として用いられると共に、
発光素子３の発光制御回路９の駆動電源として用いられ
る。そして、道路管制室より送られる発光制御信号に基
いて発光制御回路９はスイッチＳ1 ，Ｓ2 ，…，Ｓn を
ＯＮ−ＯＦＦさせ、発光素子３を点滅させる。The AC 100V AC power supply 6 is stepped down by a transformer 7 and rectified by a rectifier 8 to be a constant voltage DC power supply (first power supply). This DC power source is used as a power source for each of the light emitting elements L 1 , L 2 , ..., L n , and
It is used as a drive power source for the light emission control circuit 9 of the light emitting element 3. Then, based on the light emission control signal sent from the road control room, the light emission control circuit 9 turns on / off the switches S 1 , S 2 , ..., S n to blink the light emitting element 3.

【００１９】一方、太陽電池パネル１４も、発光素子３
の電源として、第１の電源と並列に接続されており、こ
の太陽電池パネル１４の最適動作電圧（定格発電電圧）
は第１の電源より高い電圧値となっている。従って、太
陽電池パネル１４の受光面１４ａに所定レベル以上の強
さの光が照射されると、太陽電池パネル１４には第１の
電源よりも高い電圧の起電力が生じ、この起電力が発光
素子３に印加される。従って、発光素子３に印加される
電流も増加し、発光素子３の輝度は、通常の場合よりも
大きくなる。尚、第１の電源と太陽電池パネル１４との
間には電流の逆流を防止するダイオード１６が設けられ
ている。On the other hand, the solar cell panel 14 also includes the light emitting element 3
Is connected in parallel with the first power source as the power source of the
Has a higher voltage value than the first power supply. Therefore, when the light receiving surface 14a of the solar cell panel 14 is irradiated with light of a predetermined level or more, an electromotive force having a voltage higher than that of the first power source is generated in the solar cell panel 14, and this electromotive force emits light. It is applied to the element 3. Therefore, the current applied to the light emitting element 3 also increases, and the brightness of the light emitting element 3 becomes higher than in the normal case. A diode 16 is provided between the first power source and the solar cell panel 14 to prevent backflow of current.

【００２０】次に上記照光式表示盤の動作につき説明す
る。Next, the operation of the illuminated display panel will be described.

【００２１】日射等の外部の強い光がＹ方向より照光式
表示盤１Ａに直進する場合は、発光素子３の発光面３ａ
及び太陽電池パネル１４の受光面１４ａには強い光は照
射しない。このような場合には、太陽電池パネル１４で
生ずる起電力はわずかであり、発光素子３に供給される
電力は第１の電源より供給され、発光素子３の輝度は通
常の値を示す。When strong external light such as solar radiation goes straight to the illuminated display panel 1A from the Y direction, the light emitting surface 3a of the light emitting element 3 is used.
Also, the light receiving surface 14a of the solar cell panel 14 is not irradiated with strong light. In such a case, the electromotive force generated in the solar cell panel 14 is small, the power supplied to the light emitting element 3 is supplied from the first power source, and the brightness of the light emitting element 3 exhibits a normal value.

【００２２】一方、日射等の外部の強い光がＸ方向より
照光式表示盤１Ａに直進する場合は、発光面３ａ及び受
光面１４ａに強い光が照射することになる。この場合に
は、発光素子３の輝度が第１の電源の電力のみによる通
常の値のときは、発光している発光素子３と発光してい
ない発光素子３との間のコントラストが小さくなる。し
かし、本例では受光面１４ａに強い光が照射するので、
太陽電池パネル１４に第１の電源よりも大きな電圧の起
電力が生じることになり、従って、発光素子３の印加電
圧が上昇するので、発光素子３の輝度は通常の値よりも
増大する。従って、発光している発光素子３と発光して
いない発光素子３との間のコントラストが小さくなるこ
とはない。On the other hand, when strong external light such as solar radiation goes straight to the illuminated display panel 1A from the X direction, the light emitting surface 3a and the light receiving surface 14a are irradiated with strong light. In this case, when the brightness of the light emitting element 3 is a normal value based on only the power of the first power source, the contrast between the light emitting element 3 that is emitting light and the light emitting element 3 that is not emitting light is small. However, in this example, since the light receiving surface 14a is irradiated with strong light,
An electromotive force having a voltage higher than that of the first power source is generated in the solar cell panel 14, and therefore, the applied voltage of the light emitting element 3 increases, so that the brightness of the light emitting element 3 increases more than a normal value. Therefore, the contrast between the light emitting element 3 that emits light and the light emitting element 3 that does not emit light does not decrease.

【００２３】このように、本例の表示盤１Ａでは、外部
の光が発光素子３に強く照射している場合は太陽電池パ
ネル１４から供給される電力で発光素子３の輝度が増
し、そうでない場合は、第１の電源から供給される電力
により、発光素子３の輝度は通常の値となる。従って、
日射等の強い光が発光面３ａに照射する場合であって
も、発光している発光素子３と発光していない発光素子
３の間のコントラストを大きくすることができ、しか
も、強い光が照射されない夜間等には、発光素子３の輝
度は通常の値となるので、周囲とのコントラストが大き
くなりすぎて全体が光って見えることもない。As described above, in the display panel 1A of this example, when the light emitting element 3 is strongly irradiated with the external light, the brightness of the light emitting element 3 is increased by the electric power supplied from the solar cell panel 14, and is not so. In this case, the brightness of the light emitting element 3 becomes a normal value due to the electric power supplied from the first power source. Therefore,
Even when the light emitting surface 3a is irradiated with strong light such as solar radiation, it is possible to increase the contrast between the light emitting element 3 that is emitting light and the light emitting element 3 that is not emitting light, and the strong light is emitted. Since the brightness of the light-emitting element 3 becomes a normal value at night when it is not performed, the contrast with the surroundings does not become too large and the whole does not appear to be shining.

【００２４】また、発光素子３の輝度の上昇に必要な電
力は太陽電池パネル１４の起電力によるので、第１の電
源の消費電力は少くなり、従って、第１の電源として電
池を用いる電池式の携帯形表示盤の場合は、電池寿命を
長くすることができる。Further, since the electric power required for increasing the brightness of the light emitting element 3 is due to the electromotive force of the solar cell panel 14, the power consumption of the first power source is small, and therefore, the battery type using the battery as the first power source. The battery life of the portable display panel can be extended.

【００２５】図３は第２の実施例を説明する図である。FIG. 3 is a diagram for explaining the second embodiment.

【００２６】図１では、発光素子３の発光面３ａと太陽
電池パネル１４の受光面１４ａは同一平面上に配置した
が本例では、受光面１４ａは、若干上方へ向くように傾
けられている。このような構成とするならば、発光面３
ａに日射があるときに、受光面１４ａで受ける日射量を
第１の実施例の場合よりも増大させることができる。そ
の他の構成、効果は第１の実施例と同様である。In FIG. 1, the light emitting surface 3a of the light emitting element 3 and the light receiving surface 14a of the solar cell panel 14 are arranged on the same plane, but in this example, the light receiving surface 14a is inclined so as to be slightly upward. . With such a configuration, the light emitting surface 3
When there is solar radiation at a, the amount of solar radiation received by the light receiving surface 14a can be increased more than in the case of the first embodiment. Other configurations and effects are similar to those of the first embodiment.

【００２７】尚、上記実施例では、道路表示盤に用いる
場合につき説明したが、本発明はその他種々の表示盤と
して利用可能であり、例えば、自動車に搭載する電子機
器（例えば自動車電話）の表示器などにも利用できる。In the above-mentioned embodiment, the case where it is used for the road display board has been described, but the present invention can be used as various other display boards, for example, the display of an electronic device mounted on a car (for example, a car phone). It can also be used as a container.

【００２８】[0028]

【発明の効果】以上説明したように本発明に係る照光式
表示盤では、外部の強い光が発光素子の発光面に照射す
ると、この外部の光により太陽電池にも起電力が生じ、
この電力が発光素子に供給されて発光素子の輝度を上げ
るので、日射等の強い光が発光素子に照射しても、発光
素子の発光により表示された情報が見難くなることはな
い。As described above, in the illuminated display panel according to the present invention, when strong external light is applied to the light emitting surface of the light emitting element, electromotive force is generated in the solar cell by the external light,
Since this power is supplied to the light emitting element to increase the brightness of the light emitting element, the information displayed by the light emission of the light emitting element does not become difficult to see even if the light emitting element is irradiated with strong light such as solar radiation.

【００２９】しかも、発光面に強い光が照射してないと
きは、発光素子の輝度は第１の電源の電力による通常の
値となるので、周囲とのコントラストが大きくなりすぎ
て全体が光って見えることもない。Moreover, when the light emitting surface is not irradiated with strong light, the brightness of the light emitting element becomes a normal value due to the electric power of the first power source, so that the contrast with the surroundings becomes too large and the whole is illuminated. I can't see it.

【００３０】また、発光素子の輝度を上げるために必要
とされる電力は、太陽エネルギーによるので、エネルギ
ーも削減される。Further, since the electric power required to increase the brightness of the light emitting element is solar energy, the energy is also reduced.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の第１の実施例に係る照光式表示盤を説
明する図であり、図４のＡ−Ａ線断面図。FIG. 1 is a diagram illustrating an illuminated display panel according to a first embodiment of the present invention, and is a cross-sectional view taken along the line AA of FIG.

【図２】上記照光式表示盤の回路図。FIG. 2 is a circuit diagram of the illuminated display panel.

【図３】本発明の第２の実施例に係る照光式表示盤を説
明する断面図。FIG. 3 is a sectional view illustrating an illuminated display panel according to a second embodiment of the present invention.

【図４】ポールに取り付けられた照光式表示盤の斜視
図。FIG. 4 is a perspective view of an illuminated display panel attached to a pole.

【図５】従来の照光式表示盤を説明する図であり、図４
のＡ−Ａ線断面図。5 is a diagram illustrating a conventional illuminated display panel, and FIG.
A-A line sectional view.

【図６】上記照光式表示盤の回路図。FIG. 6 is a circuit diagram of the illuminated display panel.

【図７】従来の別の照光式表示盤の回路図。FIG. 7 is a circuit diagram of another conventional illuminated display panel.

【符号の説明】[Explanation of symbols]

１Ａ 照光式表示盤 ３ 発光素子 ３ａ 発光面 １４ 太陽電
池パネル １４ａ 受光面1A Illuminated display panel 3 Light emitting element 3a Light emitting surface 14 Solar cell panel 14a Light receiving surface

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 発光素子を発光させて情報を表示する照
光式表示盤において、前記発光素子に一定電圧の電力を
供給する第１の電源と、太陽電池にて構成され受光面に
照射された光により生じた起電力を前記発光素子に供給
する第２の電源とを有し、この第２の電源の受光面は前
記発光素子の発光面を照射する外部の光を受け得る方向
に向けられていることを特徴とする照光式表示盤。1. An illuminating display panel for displaying information by causing a light emitting element to emit light, comprising a first power source for supplying a constant voltage of electric power to the light emitting element and a light receiving surface formed by a solar cell. A second power source for supplying electromotive force generated by light to the light emitting element, the light receiving surface of the second power source being oriented in a direction capable of receiving external light that illuminates the light emitting surface of the light emitting element. Illuminated display panel characterized by having.
JP4311798A 1992-11-20 1992-11-20 Illumination type display board Withdrawn JPH06161362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4311798A JPH06161362A (en) 1992-11-20 1992-11-20 Illumination type display board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4311798A JPH06161362A (en) 1992-11-20 1992-11-20 Illumination type display board

Publications (1)

Publication Number Publication Date
JPH06161362A true JPH06161362A (en) 1994-06-07

Family

ID=18021572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4311798A Withdrawn JPH06161362A (en) 1992-11-20 1992-11-20 Illumination type display board

Country Status (1)

Country Link
JP (1) JPH06161362A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909513A1 (en) * 1989-03-22 1990-09-27 Hihaisuto Seiko K K Linear-advancing mechanism
DE4015699A1 (en) * 1989-05-17 1990-11-22 Nippon Seiko Kk FEED MECHANISM
JP2012226061A (en) * 2011-04-18 2012-11-15 Nagoya Electric Works Co Ltd Information display device and information display method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909513A1 (en) * 1989-03-22 1990-09-27 Hihaisuto Seiko K K Linear-advancing mechanism
DE4015699A1 (en) * 1989-05-17 1990-11-22 Nippon Seiko Kk FEED MECHANISM
JP2012226061A (en) * 2011-04-18 2012-11-15 Nagoya Electric Works Co Ltd Information display device and information display method

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