JPH0356928A - Liquid crystal driving circuit - Google Patents

Liquid crystal driving circuit

Info

Publication number
JPH0356928A
JPH0356928A JP1191449A JP19144989A JPH0356928A JP H0356928 A JPH0356928 A JP H0356928A JP 1191449 A JP1191449 A JP 1191449A JP 19144989 A JP19144989 A JP 19144989A JP H0356928 A JPH0356928 A JP H0356928A
Authority
JP
Japan
Prior art keywords
liquid crystal
shift register
drive circuit
half period
shift clock
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
Application number
JP1191449A
Other languages
Japanese (ja)
Inventor
Atsushi Hasegawa
篤 長谷川
Hajime Kudo
元 工藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1191449A priority Critical patent/JPH0356928A/en
Priority to KR1019900011379A priority patent/KR910003420A/en
Publication of JPH0356928A publication Critical patent/JPH0356928A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE:To prevent the crosstalk by adding a function by which an output signal formed by a shift register is effectuated selectively by a half period portion of a shift clock pulse by a control signal, to a liquid crystal driving circuit. CONSTITUTION:In liquid crystal driving circuits GDL, GDR for driving a scanning line of a liquid crystal display panel LCD of an active matrix constitution, an output signal formed by a shift register is effectuated selectively by a half period portion of shift clock pulses CK1, CK1 by control signals M, M. Accordingly, when adjacent scanning lines are divided and driven, respectively by two driving circuits GDL, GDR, a double selection of the scanning line can be prevented by effectuating an output of the shift register by a half period portion of the shift clock pulses CK1, CK1. In such a way, at the time of gradation display and high frequency driving, the crosstalk is prevented.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、．液晶駆動回路に関し、例えばアクティブ
マトリックス構或の液晶表示パネルの走査線を駆動する
ものに利用して有効な技術に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention has the following features: The present invention relates to liquid crystal drive circuits, and relates to techniques that are effective when used, for example, for driving scanning lines of a liquid crystal display panel having an active matrix structure.

〔従来の技術〕[Conventional technology]

ＴＰＴ　｝ランジスタ（ｌ膜トランジスタ）を搭載した
アクティブマトリックス構或の液晶表示パネルに関して
は、例えば日経マグロウヒル社、１９　８　４年９月１
０日付『日経エレクトロニクス』頁２１１等がある。For liquid crystal display panels with an active matrix structure equipped with transistors (l-film transistors), see Nikkei McGraw-Hill, September 1, 1984.
``Nikkei Electronics'' dated 0, page 211, etc.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

Claims (1)

【特許請求の範囲】 １、制御信号によりシフトレジスタにより形成された出
力信号が、シフトクロックパルスの半周期分だけ選択的
に有効にされる機能を付加したことを特徴とする液晶駆
動回路。 ２、上記液晶駆動回路は、走査線駆動信号と信号線駆動
との双方に利用可能とされるものであり、上記制御信号
は交流化信号であり、この交流化信号としてシフトレジ
スタのシフトクロックを用いるとともに、正又は負の点
燈レベルを選択レベルとし、残りのレベルは共通に非選
択レベルの電圧を印加することを特徴とする特許請求の
範囲第１項記載の液晶駆動回路。 ３、上記液晶駆動回路は、液晶表示パネルの左右分けて
設けられ、奇数番目と偶数番目の走査線を交互に駆動す
るものであることを特徴とする特許請求の範囲第１又は
第２項記載の液晶駆動回路。[Scope of Claims] 1. A liquid crystal drive circuit characterized in that a function is added in which an output signal formed by a shift register is selectively enabled for a half period of a shift clock pulse in response to a control signal. 2. The above liquid crystal drive circuit can be used for both scanning line drive signals and signal line drives, and the above control signal is an alternating current signal, and the shift clock of the shift register is used as the alternating signal. 2. The liquid crystal driving circuit according to claim 1, wherein a positive or negative lighting level is used as a selection level, and a voltage of a non-selection level is commonly applied to the remaining levels. 3. The liquid crystal drive circuit is provided separately on the left and right sides of the liquid crystal display panel, and alternately drives odd-numbered and even-numbered scanning lines, according to claim 1 or 2. LCD drive circuit.
JP1191449A 1989-07-26 1989-07-26 Liquid crystal driving circuit Pending JPH0356928A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1191449A JPH0356928A (en) 1989-07-26 1989-07-26 Liquid crystal driving circuit
KR1019900011379A KR910003420A (en) 1989-07-26 1990-07-26 Liquid crystal driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1191449A JPH0356928A (en) 1989-07-26 1989-07-26 Liquid crystal driving circuit

Publications (1)

Publication Number Publication Date
JPH0356928A true JPH0356928A (en) 1991-03-12

Family

ID=16274814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1191449A Pending JPH0356928A (en) 1989-07-26 1989-07-26 Liquid crystal driving circuit

Country Status (2)

Country Link
JP (1) JPH0356928A (en)
KR (1) KR910003420A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006100732A1 (en) * 2005-03-18 2006-09-28 Fujitsu Limited Flat display device
KR100803163B1 (en) * 2001-09-03 2008-02-14 삼성전자주식회사 Liquid crystal display apparatus
KR100823647B1 (en) * 2005-10-04 2008-04-21 미쓰비시덴키 가부시키가이샤 Display device
KR100917324B1 (en) * 2002-11-16 2009-09-11 엘지디스플레이 주식회사 Liquid crystal panel for mobile phone
US9796938B2 (en) 2006-06-28 2017-10-24 Nucelis Inc. Fatty acid blends and uses therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100803163B1 (en) * 2001-09-03 2008-02-14 삼성전자주식회사 Liquid crystal display apparatus
KR100917324B1 (en) * 2002-11-16 2009-09-11 엘지디스플레이 주식회사 Liquid crystal panel for mobile phone
WO2006100732A1 (en) * 2005-03-18 2006-09-28 Fujitsu Limited Flat display device
KR100823647B1 (en) * 2005-10-04 2008-04-21 미쓰비시덴키 가부시키가이샤 Display device
US9796938B2 (en) 2006-06-28 2017-10-24 Nucelis Inc. Fatty acid blends and uses therefor

Also Published As

Publication number Publication date
KR910003420A (en) 1991-02-27

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