JPH0258793U - - Google Patents
Info
- Publication number
- JPH0258793U JPH0258793U JP13876588U JP13876588U JPH0258793U JP H0258793 U JPH0258793 U JP H0258793U JP 13876588 U JP13876588 U JP 13876588U JP 13876588 U JP13876588 U JP 13876588U JP H0258793 U JPH0258793 U JP H0258793U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- period
- liquid crystal
- data
- drive 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
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図は同実施例の動作を説明する
ための波形図、第３図はこの考案の他実施例の回
路構成を示すブロツク図、第４図は同実施例の動
作を説明するための波形図、第５図は従来の液晶
駆動回路の一例を示すブロツク図、第６図は同駆
動回路により駆動されるＬＣＤパネルの表示例を
示す図、第７図は同駆動回路の動作を説明するた
めの波形図である。
１１，２１……液晶コントローラ、１１１，２
１１……Ａ／Ｄ変換器、１２，１３，２３……液
晶ドライバ、１２１，１３１，２３１……デコー
ダ、１６，２４……ＬＣＤパネル。
Fig. 1 is a block diagram showing the circuit configuration of one embodiment of this invention, Fig. 2 is a waveform diagram for explaining the operation of the same embodiment, and Fig. 3 shows the circuit arrangement of another embodiment of this invention. 4 is a waveform diagram for explaining the operation of the same embodiment, FIG. 5 is a block diagram showing an example of a conventional liquid crystal drive circuit, and FIG. 6 is a diagram of an LCD panel driven by the same drive circuit. FIG. 7, which is a diagram showing a display example, is a waveform diagram for explaining the operation of the drive circuit. 11,21...LCD controller, 111,2
11... A/D converter, 12, 13, 23... Liquid crystal driver, 121, 131, 231... Decoder, 16, 24... LCD panel.
Claims (1)
めの液晶駆動回路において、１コモン選択期間内
のセグメント信号としてオン電圧をデータに対応
した期間印加したのちオフ電圧を残りの期間印加
するパターンと１コモン選択期間内にオフ電圧を
データに対応した期間印加したのちオン電圧を残
りの期間印加するパターンを隣り合う画素ごとあ
るいは複数の画素ごとに入替えて印加するように
したことを特徴とする液晶駆動回路。 (2) マトリクス型液晶表示パネルを駆動するた
めの液晶駆動回路において、１コモン選択期間内
のセグメント信号としてオン電圧をデータに対応
した期間印加したのちオフ電圧を残りの期間印加
するパターンと１コモン選択期間内にオフ電圧を
データに対応した期間印加したのちオン電圧を残
りの期間印加するパターンを所定周期毎に繰返す
ことを特徴とする液晶駆動回路。[Claims for Utility Model Registration] (1) In a liquid crystal drive circuit for driving a matrix type liquid crystal display panel, an on voltage is applied as a segment signal within one common selection period for a period corresponding to data, and then an off voltage is applied for a period corresponding to data. The pattern of applying an off voltage for a period corresponding to the data within one common selection period and the pattern of applying an on voltage for the remaining period are alternately applied for each adjacent pixel or for each plurality of pixels. A liquid crystal drive circuit characterized by: (2) In a liquid crystal drive circuit for driving a matrix type liquid crystal display panel, a pattern in which an on voltage is applied for a period corresponding to data as a segment signal within one common selection period and an off voltage is applied for the remaining period, and one common A liquid crystal drive circuit characterized in that a pattern of applying an off voltage for a period corresponding to data within a selection period and then applying an on voltage for the remaining period is repeated at predetermined intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13876588U JPH0258793U (en) | 1988-10-25 | 1988-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13876588U JPH0258793U (en) | 1988-10-25 | 1988-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0258793U true JPH0258793U (en) | 1990-04-26 |
Family
ID=31401409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13876588U Pending JPH0258793U (en) | 1988-10-25 | 1988-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0258793U (en) |
-
1988
- 1988-10-25 JP JP13876588U patent/JPH0258793U/ja active Pending
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