KR970050056A - How to drive thin film transistor liquid crystal display - Google Patents

How to drive thin film transistor liquid crystal display Download PDF

Info

Publication number
KR970050056A
KR970050056A KR1019950066708A KR19950066708A KR970050056A KR 970050056 A KR970050056 A KR 970050056A KR 1019950066708 A KR1019950066708 A KR 1019950066708A KR 19950066708 A KR19950066708 A KR 19950066708A KR 970050056 A KR970050056 A KR 970050056A
Authority
KR
South Korea
Prior art keywords
voltage
liquid crystal
thin film
crystal display
transistor liquid
Prior art date
Application number
KR1019950066708A
Other languages
Korean (ko)
Other versions
KR0175364B1 (en
Inventor
이규수
Original Assignee
김광호
삼성전자 주식회사
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019950066708A priority Critical patent/KR0175364B1/en
Publication of KR970050056A publication Critical patent/KR970050056A/en
Application granted granted Critical
Publication of KR0175364B1 publication Critical patent/KR0175364B1/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2230/00—Details of flat display driving waveforms
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/066—Adjustment of display parameters for control of contrast

Abstract

이 발명은 박막트랜지스터 액정표시장치(TFT LCD) 구동방법에 관한 것으로서, 더욱 상세하게 말하자면, 오프 전압 신호를 이용하여 저항성분과 커패시터 성분에 의한 지연 시간을 줄임으로써 액정의 충전시간을 늘일 수 있도록 하는 박막트랜지스터 액정 표시 장치 구동방법에 관한 것이다. 이 발명의 실시예에서, 게이트 신호 전압(3)이 오프 상태시 충전 전하를 방전시키기 위한 기준 전압(1)보다 낮은 전압(4)을 가하며, 또한 한 상기 게이트 신호 전압(3)이 온상태로 될 경우, 온상태가 되기 전에 충전 전하를 완전히 방전시키기 위하여 상기 전압(4)보다 더낮은 전압(2)을 가하는 방법을 이용함으로써 게이트 라인의 커패시터 성분의 충전시간이 증가하며 따라서 콘트래스트 비와 화질이 향상되는 효과를 가진 박막트랜지스터 액정 표시 장치 구동방법을 제공할 수 있다.The present invention relates to a thin film transistor liquid crystal display (TFT LCD) driving method, and more specifically, a thin film that can increase the charging time of the liquid crystal by reducing the delay time by the resistance component and the capacitor component by using the off-voltage signal A method for driving a transistor liquid crystal display device is disclosed. In the embodiment of the present invention, when the gate signal voltage 3 is in the off state, a voltage 4 lower than the reference voltage 1 for discharging the charge charge is applied, and one gate signal voltage 3 is in the on state. In this case, the charging time of the capacitor component of the gate line is increased by using a method of applying a voltage (2) lower than the voltage (4) to completely discharge the charge charge before turning on. A method of driving a thin film transistor liquid crystal display device having an effect of improving image quality can be provided.

Description

박막트랜지스터 액정 표시 장치 구동방법How to drive thin film transistor liquid crystal display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 일반적인 게이트 신호의 입력과 출력과의 관계를 나타낸 파형도이고,1 is a waveform diagram showing a relationship between an input and an output of a general gate signal,

제2도는 종래의 방법으로 박막트랜지스터의 게이트단에 인가되는 신호의 파형이고,2 is a waveform of a signal applied to a gate terminal of a thin film transistor by a conventional method,

제3도는 종래의 오프전압 파형도이고,3 is a conventional off-voltage waveform diagram,

제4도는 이 발명의 실시예에 따른 오프 전압 파형도이다.4 is an off voltage waveform diagram according to an embodiment of the present invention.

Claims (1)

박막트랜지스터 액정 표시장치의 화질을 개선하기 위한 게이트 라인 구동방법으로서, 게이트 신호 전압이 오프 상태시 충전 전하를 방전시키기 위하여 기준 전압보다 낮은 전압을 가하는 제1방법과, 상기 게이트 신호전압이 온상태로 될 경우, 온상태가 되기 전에 충전 전하를 완전히 방전시키기 위하여 상기 제1방법보다 더 낮은 전압을 가하는 제2방법을 포함하여 이루어지는 것을 특징으로 하는 박막트랜지스터 액정 표시 장치 구동방법.A gate line driving method for improving the image quality of a thin film transistor liquid crystal display device, the method comprising: a first method of applying a voltage lower than a reference voltage to discharge charge charge when a gate signal voltage is in an off state; And a second method of applying a lower voltage than the first method in order to completely discharge the charged charge before turning on. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950066708A 1995-12-29 1995-12-29 How to drive thin film transistor liquid crystal display KR0175364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950066708A KR0175364B1 (en) 1995-12-29 1995-12-29 How to drive thin film transistor liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950066708A KR0175364B1 (en) 1995-12-29 1995-12-29 How to drive thin film transistor liquid crystal display

Publications (2)

Publication Number Publication Date
KR970050056A true KR970050056A (en) 1997-07-29
KR0175364B1 KR0175364B1 (en) 1999-04-01

Family

ID=19447421

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950066708A KR0175364B1 (en) 1995-12-29 1995-12-29 How to drive thin film transistor liquid crystal display

Country Status (1)

Country Link
KR (1) KR0175364B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448938B1 (en) * 1997-07-25 2004-11-20 삼성전자주식회사 Apparatus for driving thin film transistor liquid crystal display device, especially including an interface circuit for a sufficient time margin
KR100697269B1 (en) * 2000-11-07 2007-03-21 삼성전자주식회사 Fast discharge circuit for liquid crystal display
KR100848953B1 (en) * 2001-12-26 2008-07-29 엘지디스플레이 주식회사 Gate driving circuit of liquid crystal display

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448938B1 (en) * 1997-07-25 2004-11-20 삼성전자주식회사 Apparatus for driving thin film transistor liquid crystal display device, especially including an interface circuit for a sufficient time margin
KR100697269B1 (en) * 2000-11-07 2007-03-21 삼성전자주식회사 Fast discharge circuit for liquid crystal display
KR100848953B1 (en) * 2001-12-26 2008-07-29 엘지디스플레이 주식회사 Gate driving circuit of liquid crystal display

Also Published As

Publication number Publication date
KR0175364B1 (en) 1999-04-01

Similar Documents

Publication Publication Date Title
JP3442449B2 (en) Display device and its driving circuit
KR970050060A (en) Driving Method of LCD
WO2003107314A3 (en) Method of driving a shift register, a shift register, a liquid crystal display device having the shift register
KR970067073A (en) How to drive a TFTI LCD display
KR880013110A (en) LCD and its driving method
JPH09127486A (en) Image-plane erasing circuit, liquid crystal display device having circuit thereof and driving method thereof
JP2000081606A (en) Method for driving liquid crystal display element
KR970007424A (en) Structure and Driving Method of LCD
KR970067069A (en) A driving circuit of an active matrix liquid crystal display
KR100483400B1 (en) Driving Method of LCD
JPS54108595A (en) Driving method of matrix type liquid-crystal display unit
JP3182350B2 (en) Driving method of liquid crystal display
KR970050056A (en) How to drive thin film transistor liquid crystal display
JP3737006B2 (en) Method for reducing residual image on liquid crystal display
KR20040061958A (en) LCD having integrated a-Si TFT row drive
KR970067071A (en) The gate drive circuit of the liquid crystal display (LCD)
KR960042509A (en) Driving Method of Thin Film Transistor Liquid Crystal Display
KR960025304A (en) Driving method of display device
KR20000006515A (en) Method for driving a liquid crystal display
JPH0713518A (en) Driving method for tft liquid crystal device
JPH0274989A (en) Driving method for active matrix type display device
KR970075974A (en) Method for driving a liquid crystal display (TFT-LCD)
KR100373802B1 (en) Method for driving gate of thin film transistor
JP3176846B2 (en) Driving method of liquid crystal display device
KR950003866A (en) Liquid crystal display panel

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20071029

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee