JPS6216936U - - Google Patents
Info
- Publication number
- JPS6216936U JPS6216936U JP10692585U JP10692585U JPS6216936U JP S6216936 U JPS6216936 U JP S6216936U JP 10692585 U JP10692585 U JP 10692585U JP 10692585 U JP10692585 U JP 10692585U JP S6216936 U JPS6216936 U JP S6216936U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- liquid crystal
- crystal display
- power supply
- display device
- 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
- 238000004804 winding Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 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による液晶表示装
置を一部回路図で示すブロツク図、第２図は従来
の液晶表示装置を示すブロツク図である。
３…液晶表示ドライバ、３ａ…表示信号、４Ａ
…バイアス信号、５…データ信号、６…ロジツク
用電源信号、８…液晶表示パネル、１０…コンバ
ータ、１１…分周器、１２…スイツチングトラン
ジスタ、１３…整流用ダイオード、１４…平滑用
電解コンデンサ、１５…昇圧用トランス、１５ａ
…一次巻線、１５ｂ…二次巻線、尚、図中、同一
符号は同一又は相当部分を示す。
FIG. 1 is a block diagram showing a partial circuit diagram of a liquid crystal display device according to an embodiment of this invention, and FIG. 2 is a block diagram showing a conventional liquid crystal display device. 3...Liquid crystal display driver, 3a...Display signal, 4A
... Bias signal, 5 ... Data signal, 6 ... Logic power supply signal, 8 ... Liquid crystal display panel, 10 ... Converter, 11 ... Frequency divider, 12 ... Switching transistor, 13 ... Rectifier diode, 14 ... Smoothing electrolytic capacitor , 15...Step-up transformer, 15a
...Primary winding, 15b...Secondary winding. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
及びロジツク用電源信号を入力として表示信号を
出力する液晶表示ドライバと、この液晶表示ドラ
イバに接続され、前記表示信号により表示駆動さ
れる液晶表示パネルとを備えた液晶表示装置にお
いて、前記クロツク信号及び前記ロジツク用電源
信号を入力として前記バイアス信号を出力するコ
ンバータを設け、このコンバータから前記液晶表
示ドライバに対し任意の電圧のバイアス信号を印
加するように構成したことを特徴とする液晶表示
装置。 (2) コンバータは、クロツク信号を所定の周波
数に分周する分周器と、この分周器の出力がベー
スに入力されるエミツタ接地のスイツチングトラ
ンジスタと、ロジツク用電源信号が入力され、前
記スイツチングトランジスタのコレクタに接続さ
れた一次巻線を有する昇圧用トランスと、この昇
圧用トランスの二次巻線の出力端子に接続された
整形回路とから構成され、前記整形回路の出力を
バイアス信号とする実用新案登録請求の範囲第１
項記載の液晶表示装置。[Claims for Utility Model Registration] (1) A liquid crystal display driver that receives a bias signal, a data signal, a clock signal, and a logic power supply signal and outputs a display signal; In a liquid crystal display device equipped with a driven liquid crystal display panel, a converter is provided which inputs the clock signal and the logic power supply signal and outputs the bias signal, and the converter outputs an arbitrary voltage to the liquid crystal display driver. A liquid crystal display device configured to apply a bias signal. (2) The converter includes a frequency divider that divides the clock signal into a predetermined frequency, a switching transistor whose emitter is grounded to which the output of the frequency divider is inputted to the base, and a logic power supply signal inputted. It consists of a step-up transformer having a primary winding connected to the collector of the switching transistor, and a shaping circuit connected to the output terminal of the secondary winding of the step-up transformer, and the output of the shaping circuit is used as a bias signal. Scope of claim for utility model registration No. 1
The liquid crystal display device described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10692585U JPS6216936U (en) | 1985-07-15 | 1985-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10692585U JPS6216936U (en) | 1985-07-15 | 1985-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6216936U true JPS6216936U (en) | 1987-01-31 |
Family
ID=30982733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10692585U Pending JPS6216936U (en) | 1985-07-15 | 1985-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6216936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420306A (en) * | 1990-05-14 | 1992-01-23 | Fuji Electric Co Ltd | Commodity showcase structure of showcase |
| JPH04120653U (en) * | 1991-04-15 | 1992-10-28 | 株式会社タナカヤ | Shelf Talker |
-
1985
- 1985-07-15 JP JP10692585U patent/JPS6216936U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0420306A (en) * | 1990-05-14 | 1992-01-23 | Fuji Electric Co Ltd | Commodity showcase structure of showcase |
| JPH04120653U (en) * | 1991-04-15 | 1992-10-28 | 株式会社タナカヤ | Shelf Talker |
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