JPS6321922U - - Google Patents
Info
- Publication number
- JPS6321922U JPS6321922U JP11617286U JP11617286U JPS6321922U JP S6321922 U JPS6321922 U JP S6321922U JP 11617286 U JP11617286 U JP 11617286U JP 11617286 U JP11617286 U JP 11617286U JP S6321922 U JPS6321922 U JP S6321922U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power supply
- liquid crystal
- crystal display
- 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
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Liquid Crystal Display Device Control (AREA)
Description
第１図は本考案装置の構成図、第２図は第１図
の装置を含むシステム構成図、第３図は半導体素
子の温度特性グラフである。
ＶＤＤ：電源電圧、ＥＤ：ＬＣＤ駆動電圧、Ｖ
Ｇ：ＬＣＤ駆動電圧発生回路、ＤＥ１，ＤＥ２，
ＤＥ３：半導体電圧分割素子、Ｒ：電流抑制抵抗
器。
FIG. 1 is a block diagram of the device of the present invention, FIG. 2 is a block diagram of a system including the device of FIG. 1, and FIG. 3 is a temperature characteristic graph of a semiconductor element. VDD: power supply voltage, ED: LCD drive voltage, V
G: LCD drive voltage generation circuit, DE 1 , DE 2 ,
DE 3 : Semiconductor voltage dividing element, R : Current suppression resistor.
Claims (1)
びコモンドライバを駆動する液晶表示体の駆動電
源装置において、電源電圧を分圧して走査電圧と
信号電圧とを構成する各電圧レベルを発生する分
圧回路を、液晶駆動電圧発生回路の入力側電源端
子から接地へ向けて、順方向のシユレツシオルド
領域近辺の電圧において作動する半導体素子の直
列体と電流抑制抵抗器とにより構成してなる温度
変化及び電源電圧変動に応動しうることを特徴と
する液晶表示素子の駆動電源装置。 In a drive power supply device for a liquid crystal display that drives a segment driver and a common driver using time-divided signals, a voltage dividing circuit that divides the power supply voltage and generates each voltage level that constitutes the scanning voltage and the signal voltage is connected to the liquid crystal display. A circuit that responds to temperature changes and power supply voltage fluctuations from the input side power supply terminal of the drive voltage generation circuit to the ground, consisting of a series body of semiconductor elements that operate at a voltage near the forward threshold region and a current suppression resistor. 1. A driving power supply device for a liquid crystal display element, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617286U JPS6321922U (en) | 1986-07-28 | 1986-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617286U JPS6321922U (en) | 1986-07-28 | 1986-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6321922U true JPS6321922U (en) | 1988-02-13 |
Family
ID=31000515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11617286U Pending JPS6321922U (en) | 1986-07-28 | 1986-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6321922U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6051718A (en) * | 1983-08-31 | 1985-03-23 | Asahi Chem Ind Co Ltd | Aromatic polyester |
-
1986
- 1986-07-28 JP JP11617286U patent/JPS6321922U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6051718A (en) * | 1983-08-31 | 1985-03-23 | Asahi Chem Ind Co Ltd | Aromatic polyester |