JPH0112302Y2 - - Google Patents
Info
- Publication number
- JPH0112302Y2 JPH0112302Y2 JP1981154896U JP15489681U JPH0112302Y2 JP H0112302 Y2 JPH0112302 Y2 JP H0112302Y2 JP 1981154896 U JP1981154896 U JP 1981154896U JP 15489681 U JP15489681 U JP 15489681U JP H0112302 Y2 JPH0112302 Y2 JP H0112302Y2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- transparent electrode
- segment
- display device
- time chart
- 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
Landscapes
- Liquid Crystal (AREA)
- Input From Keyboards Or The Like (AREA)
- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【考案の詳細な説明】
本考案は、スイツチ機能を一体にあわせもつ液
晶表示装置に関する。[Detailed Description of the Invention] The present invention relates to a liquid crystal display device that also has a switch function.
従来、液晶表示装置のon，off及び表示切替え
には、上記装置とは別にスイツチ機構を必要と
し、スイツチ機構の増加に従つて押し釦や移動キ
イ等により必要容積が大きくなる欠点があつた。 Conventionally, turning on/off and switching the display of a liquid crystal display device required a switch mechanism separate from the above-mentioned device, and as the number of switch mechanisms increased, the required space for push buttons, movement keys, etc. increased.
本考案は、スイツチ動作のための機構をできる
だけ簡単にしてそのための容積を小さくすること
を目的としたスイツチ機能をあわせもつ液晶表示
装置である。 The present invention is a liquid crystal display device that also has a switch function, with the aim of simplifying the mechanism for switch operation as much as possible and reducing its volume.
次に図面について本考案の実施例を説明する。
本考案実施例は、第１図に示すように、鏡１、バ
ツクプレート透明電極２、液晶３、セグメント透
明電極４の表側に間隔をおいて第３の透明電極５
を設け、更にその表側にガラス等よりなる透明保
護板６を設け、セグメント透明電極板４と第３の
透明電極５を導線で電気的に導通してなる。尚、
図中の記号７は液晶表示駆動部の基板である。 Next, embodiments of the present invention will be described with reference to the drawings.
In the embodiment of the present invention, as shown in FIG.
A transparent protective plate 6 made of glass or the like is further provided on the front side thereof, and the segment transparent electrode plate 4 and the third transparent electrode 5 are electrically connected to each other by a conductive wire. still,
Symbol 7 in the figure is a substrate of a liquid crystal display driving section.
次に上記本考案実施例の作用を説明する。バツ
クプレート透明電極２、液晶３、セグメント透明
電極４よりなる液晶セルの回路に通電して液晶の
駆動をすれば、第２図に原理図で示すインバータ
８の右側ａ点での駆動パルスは第３図に示すタイ
ムチヤート(1)のように交流電流に同期して正しく
立上るが液晶３の電気容量によりｂ点ではタイム
チヤート(2)で示すように電圧上昇に遅れを生じ
る。第２図に示す電圧コンパレータ９は、上記
ａ，ｂでの電圧変化の差では駆動しないので、そ
のタイムチヤートは(4)に示すように直線となる。 Next, the operation of the above embodiment of the present invention will be explained. If the circuit of the liquid crystal cell consisting of the back plate transparent electrode 2, the liquid crystal 3, and the segment transparent electrode 4 is energized to drive the liquid crystal, the driving pulse at point a on the right side of the inverter 8 shown in the principle diagram in FIG. As shown in time chart (1) shown in Figure 3, the voltage rises correctly in synchronization with the alternating current, but due to the capacitance of the liquid crystal 3, there is a delay in the voltage rise at point b, as shown in time chart (2). Since the voltage comparator 9 shown in FIG. 2 is not driven by the difference in voltage changes at points a and b, its time chart becomes a straight line as shown in (4).
次に第２図に記号ｓで示す指先を透明保護板６
に接触すれば、人体の電気容量Ｐによりｂ点での
パルスのタイムチヤートは(3)となり電圧の立上り
が遅れるので電圧コンパレータ９はａ，ｂでの出
力の差を検出してｃ点でのタイムチヤートは(5)に
示すように正しく立上つた電圧状態となり、上記
検出結果を液晶表示装置の液晶駆動用回路の開閉
その他関連機構の回路の開閉、切替作用の駆動に
利用することができる。 Next, attach the fingertip indicated by the symbol s in Fig. 2 to the transparent protection plate 6.
, the time chart of the pulse at point b becomes (3) due to the electric capacitance P of the human body, and the rise of the voltage is delayed, so the voltage comparator 9 detects the difference between the outputs at a and b and calculates the pulse at point c. As shown in (5), the time chart is in the correct voltage state, and the above detection result can be used to open/close the liquid crystal drive circuit of the liquid crystal display device, as well as to open/close the circuits of related mechanisms and drive the switching action. .
上述の通り本考案によれば、従来のスイツチに
必要であつた押し釦、移動キイ等を必要とせず、
そのための機構をはぶくことができるので、液晶
表示装置に一体化してスイツチ機能をあわせもた
せることができる。 As mentioned above, according to the present invention, there is no need for push buttons, movement keys, etc. that were necessary for conventional switches.
Since the mechanism for this can be removed, it can be integrated into the liquid crystal display device and also have a switch function.
又第１図のように第３の透明電極５を、セグメ
ント透明電極４に直接導通させた構成としたた
め、液晶駆動回路との配線は２本だけで済み、コ
ンパクトで使いやすい、液晶表示装置を提供する
ことが、可能となる。 In addition, as shown in Figure 1, the third transparent electrode 5 is directly connected to the segment transparent electrode 4, so only two wires are required to connect it to the liquid crystal drive circuit, making it possible to create a compact and easy-to-use liquid crystal display device. It becomes possible to provide.
第１図は、本考案の断面図である。第２図は、
本考案の原理図である。第３図は、本考案に関係
するタイムチヤートである。
１……鏡、２……バツクプレート透明電極、３
……液晶、４……セグメント透明電極、５……第
３の透明電極、６……透明保護板、７……駆動部
基板、８……インバータ、９……コンパレータ、
ｓ……指先、Ｐ……人体の電気容量。
FIG. 1 is a cross-sectional view of the present invention. Figure 2 shows
It is a principle diagram of the present invention. FIG. 3 is a time chart related to the present invention. 1...Mirror, 2...Back plate transparent electrode, 3
... Liquid crystal, 4 ... Segment transparent electrode, 5 ... Third transparent electrode, 6 ... Transparent protection plate, 7 ... Drive unit board, 8 ... Inverter, 9 ... Comparator,
s...fingertip, P...electrical capacity of the human body.
Claims (1)
明電極よりなる液晶セルの外側に第３の透明電極
を直接上記セグメント透明電極と電気的に導通し
て設けてなり、上記第３の透明電極の外側の前面
保護透明板に指を接触した時の液晶駆動パルスと
上記第３の透明電極上でのパルスのタイムチヤー
トの差を、コンパレータ９で検知し、液晶駆動又
は関連回路の開閉駆動ができる機能をもたせたこ
とを特徴とする液晶表示装置。 A third transparent electrode is provided on the outside of a liquid crystal cell consisting of a back plate transparent electrode, a liquid crystal, and a segment transparent electrode, and is directly electrically connected to the segment transparent electrode to protect the outside front surface of the third transparent electrode. The comparator 9 detects the difference between the time chart of the liquid crystal driving pulse when a finger touches the transparent plate and the pulse on the third transparent electrode, and has a function of driving the liquid crystal or opening/closing the related circuit. A liquid crystal display device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15489681U JPS5862377U (en) | 1981-10-20 | 1981-10-20 | liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15489681U JPS5862377U (en) | 1981-10-20 | 1981-10-20 | liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5862377U JPS5862377U (en) | 1983-04-26 |
| JPH0112302Y2 true JPH0112302Y2 (en) | 1989-04-11 |
Family
ID=29947483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15489681U Granted JPS5862377U (en) | 1981-10-20 | 1981-10-20 | liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5862377U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2548925B2 (en) * | 1987-01-17 | 1996-10-30 | 富士通株式会社 | Matrix type display device with input function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51148282U (en) * | 1975-05-22 | 1976-11-27 |
-
1981
- 1981-10-20 JP JP15489681U patent/JPS5862377U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5862377U (en) | 1983-04-26 |
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