JPH0481189U - - Google Patents
Info
- Publication number
- JPH0481189U JPH0481189U JP12541590U JP12541590U JPH0481189U JP H0481189 U JPH0481189 U JP H0481189U JP 12541590 U JP12541590 U JP 12541590U JP 12541590 U JP12541590 U JP 12541590U JP H0481189 U JPH0481189 U JP H0481189U
- Authority
- JP
- Japan
- Prior art keywords
- enable
- common
- shift
- common driver
- signal
- 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
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
第１図は本考案の一実施例に係わる表示駆動装
置の構成を示すブロツク図、第２図は上記表示駆
動装置におけるコモンドライバの内部構成を示す
回路図、第３図は上記表示駆動装置のコモンドラ
イバにおける各部の動作を示すタイミングチヤー
ト、第４図は従来のコモンドライバの内部構成を
示す回路図である。
１１……液晶表示パネル、１２ａ，１２ｂ……
コモンドライバ、１３ａ，１３ｂ……セグメント
ドライバ、１４……コントローラ、Ｆ０〜Ｆｎ…
…水平走査線、ＧＳ……選択ゲート、ＧＮ……非
選択ゲート、ＶＳ……コモン選択電圧、ＶＮ……
コモン非選択電圧、ＥＩ……イネーブル信号、Ｌ
Ｐ……表示タイミングパルス信号、ＴＦ０〜ＴＦ
ｎ，ＴＦｅ……Ｔフリツプフロツプ、ＲＳＦ……
ＲＳフリツプフロツプ、ＡＮＤ……入力アンドゲ
ート、ＩＮＹ，ＩＮＶＯ……インバータ、ＯＲ…
…オアゲート。
FIG. 1 is a block diagram showing the configuration of a display driving device according to an embodiment of the present invention, FIG. 2 is a circuit diagram showing the internal configuration of a common driver in the display driving device, and FIG. 3 is a block diagram showing the internal configuration of a common driver in the display driving device. FIG. 4 is a timing chart showing the operation of each part in the common driver. FIG. 4 is a circuit diagram showing the internal configuration of a conventional common driver. 11...Liquid crystal display panel, 12a, 12b...
Common driver, 13a, 13b...Segment driver, 14...Controller, F0 to Fn...
...Horizontal scanning line, GS...Selection gate, GN...Non-selection gate, VS...Common selection voltage, VN...
Common non-selection voltage, EI...enable signal, L
P...Display timing pulse signal, TF0 to TF
n, TFe...T flip-flop, RSF...
RS flip-flop, AND...input AND gate, INY, INVO...inverter, OR...
…orgate.
Claims (1)
ル信号を各コモンドライバ間で順次シフトさせる
ようにした表示駆動装置において、 上記各コモンドライバに表示タイミング信号を
供給するタイミング信号供給手段と、 上記各コモンドライバに設けられ上記表示タイ
ミング信号に基づいて上記イネーブル信号をシフ
トさせるイネーブルシフト手段と、 上記各コモンドライバに設けられ該コモンドラ
イバに上記イネーブル信号が入力されたことを検
知するイネーブル入力検知手段と、 上記各コモンドライバに設けられ該コモンドラ
イバから上記イネーブル信号が出力されたことを
検知するイネーブル出力検知手段と、 上記イネーブル信号の入力検知時から出力検知
時までの間のみ上記イネーブルシフト手段を動作
させるイネーブルシフト制御手段と、 を具備したことを特徴とする表示駆動装置。[Claim for Utility Model Registration] In a display drive device in which a plurality of common drivers are connected in series and an enable signal is sequentially shifted between each common driver, a timing signal supply for supplying a display timing signal to each common driver. means provided in each of the common drivers to shift the enable signal based on the display timing signal; and enable shift means provided in each of the common drivers to detect that the enable signal is input to the common driver. enable input detection means; enable output detection means provided in each of the common drivers to detect that the enable signal is output from the common driver; A display driving device comprising: enable shift control means for operating an enable shift means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12541590U JPH0481189U (en) | 1990-11-28 | 1990-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12541590U JPH0481189U (en) | 1990-11-28 | 1990-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0481189U true JPH0481189U (en) | 1992-07-15 |
Family
ID=31873014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12541590U Pending JPH0481189U (en) | 1990-11-28 | 1990-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0481189U (en) |
-
1990
- 1990-11-28 JP JP12541590U patent/JPH0481189U/ja active Pending
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