JPH0361930B2 - - Google Patents
Info
- Publication number
- JPH0361930B2 JPH0361930B2 JP58218204A JP21820483A JPH0361930B2 JP H0361930 B2 JPH0361930 B2 JP H0361930B2 JP 58218204 A JP58218204 A JP 58218204A JP 21820483 A JP21820483 A JP 21820483A JP H0361930 B2 JPH0361930 B2 JP H0361930B2
- Authority
- JP
- Japan
- Prior art keywords
- display panel
- solar cell
- light
- liquid crystal
- light source
- 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 - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
- G02F1/13324—Circuits comprising solar cells
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は液晶等の表示装置に関するもので、
特に太陽電池と組合せた表示装置に関するもので
ある。[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a display device such as a liquid crystal.
In particular, it relates to a display device combined with a solar cell.
従来装置を電卓を例にとり第１図で説明する。
図において１は太陽電池、２は液晶表示パネル、
３はキーボード、４は全体を保持するケースであ
る。太陽電池１は外部からの光を受け電気に変換
され、この電気で液晶表示パネル２とケース４内
のIC（図示せず）を駆動し各種の計算とその表示
を行なうことができる。
A conventional device will be explained with reference to FIG. 1, taking a calculator as an example.
In the figure, 1 is a solar cell, 2 is a liquid crystal display panel,
3 is a keyboard, and 4 is a case that holds the entire device. The solar cell 1 receives external light and converts it into electricity, which drives a liquid crystal display panel 2 and an IC (not shown) in the case 4 to perform various calculations and display them.
最近の電卓では小形化がより進んでいるが太陽
電池を用いるものでは太陽電池の分だけ大きくし
なければならない。太陽電池も効率がよくなりつ
つあり、その面積も当初のものより小さくなつて
いるが、まだ受光部をある程度大きくして光を導
かなければならない。その点一次電池の方が一円
玉かそれよりも小さいものをケース内に取付けれ
ばよいので小形化ができている。つまり、従来の
ものは、太陽電池と表示パネルは別々に設置され
るので取付面積が大きくなる欠点があつた。これ
は太陽電池付の腕時計の場合も同様の欠点となつ
ていた。 Recent calculators are becoming more compact, but those that use solar cells must be made larger to compensate for the solar cells. Although solar cells are becoming more efficient and their area is smaller than their original size, the light-receiving area still needs to be enlarged to some extent to guide the light. In this respect, the primary battery can be made smaller because it only needs to be a 1 yen coin or smaller inside the case. In other words, in the conventional type, the solar cell and the display panel are installed separately, which has the disadvantage of requiring a large installation area. This was a similar drawback in the case of wristwatches equipped with solar cells.
この発明は太陽電池と表示パネルとを用いる場
合に、取付面積をより小さくするために表示パネ
ルの裏側に太陽電池を設けて小形化を計ることを
目的としている。
The purpose of this invention is to reduce the size of a display panel by providing the solar cell on the back side of the display panel in order to reduce the installation area when using a solar cell and a display panel.
第２図にこの発明の一実施例の表示装置を示
す。図において、１１は太陽電池で液晶表示パネ
ル１２の裏側に配設する。この表示装置全体を１
０とする。このような構成において、外部からの
光が表示パネル１２に当ると表示パネル１２を通
過した光が太陽電池１１を照射して電気を発生す
る。この太陽電池１１の起電力は表示パネル１２
を通すので弱くなるが、太陽電池自身の効率の向
上が計られており、今後ますます利用価値は高く
なる。また、液晶表示パネル１２は白黒の液晶パ
ネルを使用すると、光は主に黒い部分を透過する
ので、白地黒文字のばあい文字部分の面積が小さ
く起動力が小さすぎるときがある。このばあいは
黒地に白文字のパネルにしてもよい。また、最近
は地が透明に近い液晶パネルもあり、これを使用
すると起動力が大きく使用しやすくなる。
FIG. 2 shows a display device according to an embodiment of the present invention. In the figure, a solar cell 11 is arranged on the back side of a liquid crystal display panel 12. This entire display device is
Set to 0. In such a configuration, when light from the outside hits the display panel 12, the light that passes through the display panel 12 irradiates the solar cell 11 and generates electricity. The electromotive force of this solar cell 11 is
Although it becomes weaker because it passes through the solar cells, efforts are being made to improve the efficiency of the solar cells themselves, and their utility value will continue to increase in the future. Further, when a black and white liquid crystal display panel 12 is used, light mainly passes through the black portion, so in the case of black characters on a white background, the area of the character portion may be small and the starting force may be too small. In this case, a panel with white text on a black background may be used. Also, recently there are liquid crystal panels with almost transparent backgrounds, which provide greater starting power and are easier to use.
この第２図の表示装置を電卓に取付けた例を第
３図に示す。このようにすると、表示パネル１２
の下に太陽電池１１（図示せず）があるので電卓
のパネル部の面積を大幅に減少できる。これはデ
ーム電卓などに利用すると別の電池を不要とする
こともできる。また、第４図のようにデイジタル
式の時計に利用すると従来の太陽電池のものより
大幅に小形化されその効果が大きい。これはアナ
ログ式液晶表示の時計にも利用できる。 FIG. 3 shows an example in which the display device shown in FIG. 2 is attached to a calculator. In this way, the display panel 12
Since there is a solar cell 11 (not shown) under the calculator, the area of the calculator panel can be significantly reduced. This can also be used in devices such as a dame calculator, eliminating the need for a separate battery. Furthermore, when used in a digital clock as shown in FIG. 4, the solar cell is much smaller and more effective than conventional solar cells. This can also be used for analog LCD watches.
第５図はこの発明の他の実施例を示す。最近液
晶パネルは地が透明で文字部を種々のカラーにし
て表示効果を向上させたものがあるが、これは
種々のカラーフイルター等を使用し、これに別の
光源から光を当ててカラー表示をしている。この
光源からの光を利用してカラー表示をさせると共
にこの光源の光の一部を利用して太陽電池に起電
力を発生させる。この例を第５図に示す。この図
では液晶表示パネル１２とその裏側に太陽電池１
１を少し間隙を設けて取付け、その間隙を光源１
３からの光でパネル１２と太陽電池１１を照射す
るようにしたものである。太陽電池１１の起電力
は液晶表示パネル１２を駆動するようにする。太
陽電池１１の起電力は液晶表示パネル１２を駆動
せず他のIC回路を駆動するようにしてもよい。
要するに太陽電池と液晶表示パネルとを用いた装
置でパネル面の減少を計ることができればよい。
光源１３からの光を太陽電池１１を通して利用す
ることは効率上直接光源１３に与える電気を利用
する方がよいが、太陽電池１１の起電力を液晶表
示パネル１２や他のIC回路等に使用して光源の
電源とは別にしておくと、外来ノイズ等を受けな
いため回路のセパレーシヨン等に有利な場合があ
る。また光源１３が故障した場合、外部からの光
が液晶表示パネル１２を通過して太陽電池１１に
照射し液晶表示パネルや、他のIC回路を駆動す
ることができるので信頼性の向上にもつながる。
故障のない場合は外部からの光と光源１３との両
者を太陽電池１１が受光しているので起電力は大
きく、その一部を蓄電池に蓄え光源１３が故障の
とき予備光源にこの電気を利用したりその他の電
源として利用してもよい。 FIG. 5 shows another embodiment of the invention. Recently, some liquid crystal panels have a transparent background and characters in various colors to improve the display effect, but these use various color filters and other light sources to illuminate the color display. doing. The light from this light source is used to display color, and a portion of the light from this light source is used to generate electromotive force in the solar cell. An example of this is shown in FIG. In this figure, there is a liquid crystal display panel 12 and a solar cell 1 on the back side.
1 with a slight gap, and use that gap as light source 1.
The panel 12 and the solar cell 11 are irradiated with light from the solar panel 3. The electromotive force of the solar cell 11 is made to drive the liquid crystal display panel 12. The electromotive force of the solar cell 11 may not drive the liquid crystal display panel 12 but may drive other IC circuits.
In short, it is sufficient if the device using a solar cell and a liquid crystal display panel can measure the reduction in panel surface area.
Although it is better to use the light from the light source 13 through the solar cell 11 by directly applying electricity to the light source 13 in terms of efficiency, it is also possible to use the electromotive force of the solar cell 11 for the liquid crystal display panel 12 or other IC circuits. If the power source is separated from the power source of the light source, it may be advantageous for circuit separation because it will not be affected by external noise. Furthermore, if the light source 13 fails, light from the outside can pass through the liquid crystal display panel 12 and illuminate the solar cell 11 to drive the liquid crystal display panel and other IC circuits, leading to improved reliability. .
When there is no failure, the solar cell 11 receives both light from the outside and the light source 13, so the electromotive force is large, and a part of it is stored in a storage battery and used as a backup light source when the light source 13 is out of order. It can also be used as a power source for other purposes.
第５図では光源１３を横方向に置いたが表示パ
ネル１２の上方に置いてもよい。 Although the light source 13 is placed horizontally in FIG. 5, it may be placed above the display panel 12.
また、上記のような発明の実施例は配電盤制御
盤等の表示装置、屋外設置のデイジタル時計等に
も利用できる。 Furthermore, the embodiments of the invention as described above can be used for display devices such as switchboard control panels, digital clocks installed outdoors, and the like.
以上のように表示パネルの裏側に太陽電池を設
けた構成としたので、小形化された表示装置とな
り、電卓や時計等に利用したばあい、大幅に取付
面積の縮小化が計れる効果を有する。
Since the solar cell is provided on the back side of the display panel as described above, the display device can be miniaturized, and when used in calculators, watches, etc., it has the effect of significantly reducing the installation area.
第１図は従来の電卓の平面図、第２図はこの発
明の一実施例を示す表示装置の斜視図、第３図は
この発明の表示装置の一実施態様を示す電卓の平
面図、第４図はこの発明の表示装置の他の実施態
様を示すデイジタル式腕時計の斜視図（一部断面
図）、第５図はこの発明の他の実施例を示す正面
図である。
図において、１，１１は太陽電池、２，１２は
液晶表示パネル、３はキーボード、４はケース、
１０は表示装置である。なお、図中、同一符号は
同一又は相当部分を示す。
FIG. 1 is a plan view of a conventional calculator, FIG. 2 is a perspective view of a display device showing an embodiment of the present invention, and FIG. 3 is a plan view of a calculator showing an embodiment of the display device of the present invention. FIG. 4 is a perspective view (partially sectional view) of a digital wristwatch showing another embodiment of the display device of the invention, and FIG. 5 is a front view showing another embodiment of the invention. In the figure, 1 and 11 are solar cells, 2 and 12 are liquid crystal display panels, 3 is a keyboard, 4 is a case,
10 is a display device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
パネルの裏側に配設され、上記表示パネルを通過
した外部からの光を受光して電気を発生する太陽
電池を備え、この太陽電池の発生電気で上記表示
パネルを駆動するようにした太陽電池付き表示装
置。 ２ 表示パネルは液晶を用いた表示パネルである
ことを特徴とする特許請求範囲第１項記載の太陽
電池付き表示装置。 ３ 電気で駆動表示される表示パネル、この表示
パネルの裏側に配設された太陽電池、上記表示パ
ネルの近傍に光源を備え、上記表示パネルを透過
した外部からの光と上記光源からの光により太陽
電池に発生した電気で上記表示パネルを駆動する
ようにした太陽電池付き表示装置。[Scope of Claims] 1. A display panel that is driven by electricity and includes a solar cell that is disposed on the back side of the display panel and that generates electricity by receiving light from the outside that has passed through the display panel. A display device with a solar cell, in which the display panel is driven by electricity generated by a solar cell. 2. The display device with a solar cell according to claim 1, wherein the display panel is a display panel using liquid crystal. 3. A display panel that is driven by electricity, a solar cell installed on the back side of the display panel, and a light source near the display panel, which uses light from the outside transmitted through the display panel and light from the light source. A display device with a solar cell, in which the display panel is driven by electricity generated in the solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58218204A JPS60108823A (en) | 1983-11-18 | 1983-11-18 | Display device provided with solar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58218204A JPS60108823A (en) | 1983-11-18 | 1983-11-18 | Display device provided with solar battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60108823A JPS60108823A (en) | 1985-06-14 |
| JPH0361930B2 true JPH0361930B2 (en) | 1991-09-24 |
Family
ID=16716250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58218204A Granted JPS60108823A (en) | 1983-11-18 | 1983-11-18 | Display device provided with solar battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108823A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6334515A (en) * | 1986-07-29 | 1988-02-15 | Mitsubishi Electric Corp | Light shielding device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826027B2 (en) * | 1973-05-11 | 1983-05-31 | インペリヤル ケミカル インダストリ−ズ リミテツド | Method of manufacturing electrostatographic products |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826027U (en) * | 1981-08-11 | 1983-02-19 | シャープ株式会社 | Electronics |
-
1983
- 1983-11-18 JP JP58218204A patent/JPS60108823A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5826027B2 (en) * | 1973-05-11 | 1983-05-31 | インペリヤル ケミカル インダストリ−ズ リミテツド | Method of manufacturing electrostatographic products |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60108823A (en) | 1985-06-14 |
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