JPH0247621U - - Google Patents
Info
- Publication number
- JPH0247621U JPH0247621U JP12660988U JP12660988U JPH0247621U JP H0247621 U JPH0247621 U JP H0247621U JP 12660988 U JP12660988 U JP 12660988U JP 12660988 U JP12660988 U JP 12660988U JP H0247621 U JPH0247621 U JP H0247621U
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- driver
- circuit
- supplies
- power supply
- 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 7
- 239000011159 matrix material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例における液晶表示装
置の回路図、第２図は従来の同回路図、第３図は
ゲート信号及び映像信号の波形図を示す。
１……液晶パネル、２……Ｘドライバ、３……
Ｙドライバ、４……電源回路、５……電圧調整回
路。
FIG. 1 is a circuit diagram of a liquid crystal display device according to an embodiment of the present invention, FIG. 2 is a conventional circuit diagram, and FIG. 3 is a waveform diagram of a gate signal and a video signal. 1...LCD panel, 2...X driver, 3...
Y driver, 4...power supply circuit, 5...voltage adjustment circuit.
Claims (1)
この液晶パネルのゲートラインに所定の振幅のゲ
ート信号を供給する第１のドライバと、前記液晶
パネルの信号ラインに映像信号を供給する第２の
ドライバと、前記第１のドライバにゲート信号作
成用の電圧を供給する電源回路とからなる液晶表
示装置の駆動回路において、 前記電源回路と第１のドライバとの間に、前記
ゲート信号の振幅を一定に保ちつつ直流レベルの
みを可変する電圧調整回路を設けたことを特徴と
する液晶表示装置の駆動回路。 (2) 前記電圧調整回路は前記電源回路の正負端
子間に直列に接続された可変抵抗とツエナーダイ
オードと定電流源とで構成され、前記ツエナーダ
イオードの端子電圧が前記第１のドライバに供給
されてなる請求項１記載の液晶表示装置の駆動回
路。[Scope of utility model registration claims] (1) An active matrix type liquid crystal panel,
A first driver that supplies a gate signal of a predetermined amplitude to the gate line of the liquid crystal panel, a second driver that supplies a video signal to the signal line of the liquid crystal panel, and a gate signal generating device for the first driver. A drive circuit for a liquid crystal display device comprising a power supply circuit that supplies a voltage of 1, and a voltage adjustment circuit that varies only the DC level while keeping the amplitude of the gate signal constant between the power supply circuit and the first driver. A driving circuit for a liquid crystal display device, characterized in that it is provided with: (2) The voltage adjustment circuit includes a variable resistor, a Zener diode, and a constant current source connected in series between the positive and negative terminals of the power supply circuit, and the terminal voltage of the Zener diode is supplied to the first driver. 2. A driving circuit for a liquid crystal display device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12660988U JPH0247621U (en) | 1988-09-27 | 1988-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12660988U JPH0247621U (en) | 1988-09-27 | 1988-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0247621U true JPH0247621U (en) | 1990-03-30 |
Family
ID=31378283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12660988U Pending JPH0247621U (en) | 1988-09-27 | 1988-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0247621U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026992A (en) * | 1983-07-25 | 1985-02-09 | シチズン時計株式会社 | Driving of display panel |
| JPS6395420A (en) * | 1986-10-11 | 1988-04-26 | Fujitsu Ltd | Driving method for active matrix type liquid crystal display device |
-
1988
- 1988-09-27 JP JP12660988U patent/JPH0247621U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026992A (en) * | 1983-07-25 | 1985-02-09 | シチズン時計株式会社 | Driving of display panel |
| JPS6395420A (en) * | 1986-10-11 | 1988-04-26 | Fujitsu Ltd | Driving method for active matrix type liquid crystal display device |
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