JPS62210499A - Liquid crystal display unit - Google Patents
Liquid crystal display unitInfo
- Publication number
- JPS62210499A JPS62210499A JP5240386A JP5240386A JPS62210499A JP S62210499 A JPS62210499 A JP S62210499A JP 5240386 A JP5240386 A JP 5240386A JP 5240386 A JP5240386 A JP 5240386A JP S62210499 A JPS62210499 A JP S62210499A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display unit
- bias
- display
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は液晶表示装置に係り特に高表示品質を得るため
のバイアス回路の改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid crystal display device, and particularly to an improvement in a bias circuit for obtaining high display quality.
従来のバイアス回路は固定バイアスで一定電圧を印加し
ていた（特公昭５７−５７７１８号公報）。このため液
晶表示素子内の電流が変化してもこの変化を補正するこ
とは出来なかった。A conventional bias circuit applies a constant voltage with a fixed bias (Japanese Patent Publication No. 57-57718). Therefore, even if the current within the liquid crystal display element changes, it has not been possible to correct this change.
したがって、本発明の目的は、液晶表示素子内の電流変
動分をバイアス回路で補正し最適表示を提供することに
ある。Therefore, an object of the present invention is to provide an optimal display by correcting current fluctuations within a liquid crystal display element using a bias circuit.
電圧平均化方式の駆動方法は第２図に示すように表示内
容によりコモンラインＣＬ及びセグメントラインＳＬに
流れる電流方向が異なる。このため外部に正常なバイア
ス電圧を印加しても表示するセグメントに正しいバイア
スが印加されているとはかぎらない０本発明においては
この変化する電流をコモンバイアス電圧で補正する。補
正量は表示されている内容により異なるので表示メモリ
の内容を平均化しこれをＤＡ変換してコモンバイアス電
圧を得るようにする。In the voltage averaging driving method, as shown in FIG. 2, the direction of current flowing through the common line CL and segment line SL differs depending on the display content. Therefore, even if a normal bias voltage is applied externally, the correct bias is not always applied to the displayed segment. In the present invention, this changing current is corrected by the common bias voltage. Since the amount of correction differs depending on the content being displayed, the content of the display memory is averaged and then DA-converted to obtain the common bias voltage.
表示内容によりバイアス電圧を修正することにより最適
表示が得られる。An optimal display can be obtained by modifying the bias voltage depending on the display content.
以下本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
第１図中１は表示メモリ、２はＬＣＭコントローラー、
３はＡ／Ｄコンバータ、４はＬＣＭである。In Figure 1, 1 is display memory, 2 is LCM controller,
3 is an A/D converter, and 4 is an LCM.
本発明においては、かかる構成を用いて、まず表示メモ
リ１の内容を読み出し、ここに書かれている“１″の数
によりコモンバイアスの電圧を最適値にコントロールす
る。In the present invention, using such a configuration, the contents of the display memory 1 are first read out, and the common bias voltage is controlled to an optimum value based on the number of "1"s written therein.
本発明によれば、表示内容により最適バイアスが印加出
来表示品質の良い液晶表示装置が得られる。According to the present invention, it is possible to obtain a liquid crystal display device that can apply an optimum bias depending on the display content and has good display quality.
第１図は本発明によるバイアス電圧調整回路付液晶表示
装置の一実施例の構成を示すブロック回路図、第２図は
電圧平均化方式による液晶表示装置の駆動方式を示す回
Ｍ図である。
符号の説明
１・・・表示メモリ、２・・・ＬＣＭコントローラー、
３・・・Ａ／Ｄコンバータ、４・・・ＬＣＭ、ＣＬ・・
・コモンライン、ＳＬ・・・セグメントライン。
１・・・表示メモリ
２・・・１０Ｍコントローラ
３・・−Ａ／Ｄコンバータ
４・・・ＬＣＭFIG. 1 is a block circuit diagram showing the structure of an embodiment of a liquid crystal display device with a bias voltage adjustment circuit according to the present invention, and FIG. 2 is a circuit diagram showing a driving method of the liquid crystal display device using a voltage averaging method. Explanation of symbols 1...Display memory, 2...LCM controller,
3...A/D converter, 4...LCM, CL...
・Common line, SL...Segment line. 1...Display memory 2...10M controller 3...-A/D converter 4...LCM
Claims (1)
晶表示装置において、最適表示品質を得るために表示内
容に合せバイアス電圧を調整する機能手段を設けたこと
を特徴とする液晶表示装置。1. A liquid crystal display device consisting of a liquid crystal display element and a driving IC for driving the same, characterized in that a liquid crystal display device is provided with a functional means for adjusting a bias voltage according to display content in order to obtain optimum display quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61052403A JPH0752328B2 (en) | 1986-03-12 | 1986-03-12 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61052403A JPH0752328B2 (en) | 1986-03-12 | 1986-03-12 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62210499A true JPS62210499A (en) | 1987-09-16 |
| JPH0752328B2 JPH0752328B2 (en) | 1995-06-05 |
Family
ID=12913828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61052403A Expired - Lifetime JPH0752328B2 (en) | 1986-03-12 | 1986-03-12 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752328B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5102799A (en) * | 1988-06-08 | 1992-04-07 | Basf Aktiengesellschaft | Lipase immobilized with hydrophilized polyolefin fibers for resolving racemates |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61124U (en) * | 1984-06-06 | 1986-01-06 | カシオ計算機株式会社 | Color LCD panel drive circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57212130A (en) * | 1981-06-22 | 1982-12-27 | Toray Ind Inc | Denitration of organic nitric acid ester |
-
1986
- 1986-03-12 JP JP61052403A patent/JPH0752328B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61124U (en) * | 1984-06-06 | 1986-01-06 | カシオ計算機株式会社 | Color LCD panel drive circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5102799A (en) * | 1988-06-08 | 1992-04-07 | Basf Aktiengesellschaft | Lipase immobilized with hydrophilized polyolefin fibers for resolving racemates |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0752328B2 (en) | 1995-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4860878B2 (en) | Twisted nematic liquid crystal display with temperature compensation means for operating voltage | |
| JP3106078B2 (en) | LCD drive power supply | |
| US5796384A (en) | Gamma correction circuit of a liquid crystal display using a memory device | |
| JPS6271931A (en) | Liquid crystal driving circuit | |
| US20060007207A1 (en) | Liquid crystal display device and method of driving liquid crystal display device | |
| JPS6083477A (en) | Driving circuit of liquid crystal display device | |
| JPS62210499A (en) | Liquid crystal display unit | |
| US20020145598A1 (en) | Adjustable biased gamma-correction circuit with central-symmetry voltage | |
| KR100537886B1 (en) | Thin-film transistor liquid crystal display with adjustable gate-on voltage waveform | |
| KR0138998B1 (en) | Direct current restore circuit | |
| JP2002207452A (en) | Driving method of liquid crystal display device | |
| JPH11133919A (en) | Liquid crystal display | |
| JPH04204627A (en) | Liquid crystal display device | |
| JP3160047B2 (en) | Semiconductor device | |
| TW529013B (en) | Liquid crystal display having gate driving signal line in panel and correction circuit | |
| JP2002214582A (en) | Liquid crystal display device | |
| JPS58195888A (en) | Liquid crystal driving circuit | |
| JPS63267916A (en) | Voltage generating circuit for liquid crystal display device | |
| JPS61162028A (en) | Liquid crystal driving circuit | |
| JPS61231886A (en) | Electronic governor | |
| JPS61124U (en) | Color LCD panel drive circuit | |
| JPH08262413A (en) | Liquid crystal display device | |
| JPS63265228A (en) | Liquid crystal display device | |
| JPH0519720A (en) | Driving circuit for tft-lcd | |
| JPS61140990A (en) | Temperature compensation circuit for liquid crystal display element |