JPH0258792U - - Google Patents
Info
- Publication number
- JPH0258792U JPH0258792U JP13876488U JP13876488U JPH0258792U JP H0258792 U JPH0258792 U JP H0258792U JP 13876488 U JP13876488 U JP 13876488U JP 13876488 U JP13876488 U JP 13876488U JP H0258792 U JPH0258792 U JP H0258792U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- liquid crystal
- power supply
- internal logic
- crystal drive
- 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 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 1
Landscapes
- Liquid Crystal Display Device Control (AREA)
Description
第１図はこの考案の一実施例の回路構成を示す
ブロツク図、第２図は従来の液晶駆動回路の一例
を示すブロツク図、第３図はマトリクス型液晶表
示パネルを駆動する際の走査電極駆動波形および
信号電極駆動波形を示す波形図である。
１１……セグメントドライバー、１１１……入
力回路、１１２……内部論理回路、１１３……レ
ベルシフター、１１４……出力回路、１２……コ
ントローラ。
Fig. 1 is a block diagram showing the circuit configuration of an embodiment of this invention, Fig. 2 is a block diagram showing an example of a conventional liquid crystal drive circuit, and Fig. 3 is a scanning electrode when driving a matrix type liquid crystal display panel. FIG. 3 is a waveform diagram showing a drive waveform and a signal electrode drive waveform. 11... Segment driver, 111... Input circuit, 112... Internal logic circuit, 113... Level shifter, 114... Output circuit, 12... Controller.
Claims (1)
び出力回路を有する信号電極駆動手段を具備した
液晶駆動回路において、少なくとも上記入力回路
および内部論理回路の正負電源端子のうち一方の
端子に同一電位の共通電源を接続するとともに、
他方の端子に異なる電位の電源を接続したことを
特徴とする液晶駆動回路。 In a liquid crystal drive circuit equipped with a signal electrode drive means having an input circuit, an internal logic circuit, a level shifter, and an output circuit, a common power supply having the same potential is connected to at least one of the positive and negative power supply terminals of the input circuit and the internal logic circuit. Along with connecting,
A liquid crystal drive circuit characterized in that power supplies with different potentials are connected to the other terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13876488U JPH0258792U (en) | 1988-10-25 | 1988-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13876488U JPH0258792U (en) | 1988-10-25 | 1988-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0258792U true JPH0258792U (en) | 1990-04-26 |
Family
ID=31401407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13876488U Pending JPH0258792U (en) | 1988-10-25 | 1988-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0258792U (en) |
-
1988
- 1988-10-25 JP JP13876488U patent/JPH0258792U/ja active Pending
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