JPH0179023U - - Google Patents
Info
- Publication number
- JPH0179023U JPH0179023U JP1987174627U JP17462787U JPH0179023U JP H0179023 U JPH0179023 U JP H0179023U JP 1987174627 U JP1987174627 U JP 1987174627U JP 17462787 U JP17462787 U JP 17462787U JP H0179023 U JPH0179023 U JP H0179023U
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- liquid crystal
- voltage
- switching element
- circuit
- 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.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- 210000002858 crystal cell Anatomy 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 2
Landscapes
- Liquid Crystal Display Device Control (AREA)
Description
第１図は本考案の一実施例における液晶表示装
置の駆動回路の回路図、第２図はマトリツクス型
液晶表示装置の構成を示す等価回路図、第３図は
マトリツクス型液晶表示装置の一絵素の構成を示
す等価回路図、第４図は液晶パネルに印加される
電圧波形図、第５図は液晶表示装置のコモン反転
方式交流駆動回路の回路図、第６図は液晶表示装
置の従来のコモン反転方式交流駆動回路の回路図
である。
Ａ……定電圧回路、Ｂ……定電流源、Ｃ……基
準電圧回路。
Fig. 1 is a circuit diagram of a driving circuit of a liquid crystal display device according to an embodiment of the present invention, Fig. 2 is an equivalent circuit diagram showing the configuration of a matrix type liquid crystal display device, and Fig. 3 is a picture of a matrix type liquid crystal display device. Figure 4 is an equivalent circuit diagram showing the basic configuration, Figure 4 is a voltage waveform diagram applied to the liquid crystal panel, Figure 5 is a circuit diagram of a common inversion AC drive circuit for a liquid crystal display, and Figure 6 is a conventional diagram of a liquid crystal display. FIG. 2 is a circuit diagram of a common inversion type AC drive circuit. A... Constant voltage circuit, B... Constant current source, C... Reference voltage circuit.
Claims (1)
のスイツチング素子の第１の電極にスイツチング
信号を加え、第２の電極に入力信号を加え、第３
の電極は液晶セルの一方の電極に接続し、前記液
晶セルの他方の電極にはコモン端子として、コモ
ン電圧を入力し、前記コモン電圧と前記入力信号
とは一定の周期で反転させるようにするとともに
、前記コモン電圧は定電圧回路の両端から取り出
した電圧を前記一定周期の反転切換え回路を通し
て取り出すようにしたことを特徴とする液晶表示
装置の駆動回路。 A switching element is provided on the liquid crystal panel, a switching signal is applied to the first electrode of the switching element, an input signal is applied to the second electrode, and a switching element is applied to the third electrode.
The electrode is connected to one electrode of the liquid crystal cell, and the other electrode of the liquid crystal cell is used as a common terminal to input a common voltage, and the common voltage and the input signal are inverted at a constant cycle. The driving circuit for a liquid crystal display device is characterized in that the common voltage is a voltage taken out from both ends of a constant voltage circuit and taken out through the inversion switching circuit having a constant period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174627U JPH0179023U (en) | 1987-11-16 | 1987-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174627U JPH0179023U (en) | 1987-11-16 | 1987-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0179023U true JPH0179023U (en) | 1989-05-26 |
Family
ID=31466471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987174627U Pending JPH0179023U (en) | 1987-11-16 | 1987-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0179023U (en) |
-
1987
- 1987-11-16 JP JP1987174627U patent/JPH0179023U/ja active Pending
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