JPS6438695U - - Google Patents
Info
- Publication number
- JPS6438695U JPS6438695U JP13372687U JP13372687U JPS6438695U JP S6438695 U JPS6438695 U JP S6438695U JP 13372687 U JP13372687 U JP 13372687U JP 13372687 U JP13372687 U JP 13372687U JP S6438695 U JPS6438695 U JP S6438695U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- display
- dedicated
- segment
- segment electrode
- 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 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Liquid Crystal Display Device Control (AREA)
Description
第１図はこの考案の液晶表示装置の１実施例の
要部の結線図、第２図ａ〜ｃは第１図の動作説明
用のタイミングチヤート、第３図ａ〜ｃはこの考
案が適用される液晶表示装置の共通電極電圧およ
び点灯、消灯電圧パターンのセグメント電極電圧
のタイミングチヤートである。
１……液晶表示器、２……表示用集積回路、４
……入力端子、５……専用セグメント電極電圧生
成回路、ｃａ……共通電極、ｓ……専用表示用セ
グメント電極。
Fig. 1 is a wiring diagram of the main parts of one embodiment of the liquid crystal display device of this invention, Figs. 2 a to c are timing charts for explaining the operation of Fig. 1, and Figs. 3 a to c are to which this invention is applied. This is a timing chart of the common electrode voltage and the segment electrode voltage of the on/off voltage pattern of the liquid crystal display device. 1...Liquid crystal display, 2...Display integrated circuit, 4
... Input terminal, 5 ... Dedicated segment electrode voltage generation circuit, ca ... Common electrode, s ... Dedicated display segment electrode.
Claims (1)
源電圧、該電圧の1/2の電圧、アース電圧、前記1
/2の電圧に順に変化する電圧パターンの共通電極
電圧を供給するとともに、前記駆動回路から前記
表示器の各規定表示用セグメント電極に、予め設
定された種類の規定の文字、図形それぞれの表示
オン、オフにしたがつた点灯、消灯電圧パターン
で前記電源電圧、前記アース電圧に変化するセグ
メント電極電圧を供給し、前記表示器を1/2デユ
ーテイ、1/2バイアス方式で交流駆動する液晶表
示装置において、 前記表示器に前記各規定の文字、図形と異なる
新たな文字、図形の専用表示用セグメント電極を
付加するとともに、前記新たな文字、図形の表示
オン、オフにしたがつて２値レベル変化する専用
表示制御信号の入力端子と、前記制御信号の動作
制御により前記共通電極電圧から前記専用表示セ
グメント電極の点灯、消灯電圧パターンのセグメ
ント電極電圧を生成し、該セグメント電極電圧を
前記専用表示セグメント電極に供給する専用セグ
メント電極電圧生成回路とを設けた液晶表示装置
。[Claims for Utility Model Registration] From the display drive circuit to the common electrode of the liquid crystal display, the power supply voltage, 1/2 of the voltage, ground voltage,
A common electrode voltage is supplied with a voltage pattern that sequentially changes to a voltage of /2, and the drive circuit turns on each of the prescribed characters and figures of a preset type to each prescribed display segment electrode of the display. , a liquid crystal display device that supplies a segment electrode voltage that changes to the power supply voltage and the ground voltage in a lighting/extinguishing voltage pattern according to turning off, and drives the display device in an alternating current manner in a 1/2 duty, 1/2 bias method. In this step, segment electrodes dedicated to displaying new characters and graphics different from the respective prescribed characters and graphics are added to the display, and the binary level changes as the display of the new characters and graphics is turned on and off. and an input terminal for a dedicated display control signal to generate a segment electrode voltage of a lighting/turning-off voltage pattern of the dedicated display segment electrode from the common electrode voltage by operation control of the control signal, and the segment electrode voltage is applied to the dedicated display segment. A liquid crystal display device equipped with a dedicated segment electrode voltage generation circuit that supplies voltage to the electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13372687U JPS6438695U (en) | 1987-08-31 | 1987-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13372687U JPS6438695U (en) | 1987-08-31 | 1987-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6438695U true JPS6438695U (en) | 1989-03-08 |
Family
ID=31391855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13372687U Pending JPS6438695U (en) | 1987-08-31 | 1987-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6438695U (en) |
-
1987
- 1987-08-31 JP JP13372687U patent/JPS6438695U/ja active Pending
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