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KR960008663A - Driving Method of LCD Panel Device for Wide TV Receiver - Google Patents

Driving Method of LCD Panel Device for Wide TV Receiver Download PDF

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Publication number
KR960008663A
KR960008663A KR1019940020355A KR19940020355A KR960008663A KR 960008663 A KR960008663 A KR 960008663A KR 1019940020355 A KR1019940020355 A KR 1019940020355A KR 19940020355 A KR19940020355 A KR 19940020355A KR 960008663 A KR960008663 A KR 960008663A
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KR
South Korea
Prior art keywords
signal
horizontal
liquid crystal
crystal panel
panel device
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KR1019940020355A
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Korean (ko)
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KR0147597B1 (en
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오정섭
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김광호
삼성전자 주식회사
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Priority to KR1019940020355A priority Critical patent/KR0147597B1/en
Publication of KR960008663A publication Critical patent/KR960008663A/en
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Publication of KR0147597B1 publication Critical patent/KR0147597B1/en

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    • 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
    • G09G3/3659—Control of matrices with row and column drivers using an active matrix the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
    • 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0828—Several active elements per pixel in active matrix panels forming a digital to analog [D/A] conversion circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

기존의 액정패널장치 구동회로를 그대로 채용하면서 원하는 화면 모드를 액정패널장치에 디스플레이시키는 와이드 TV 수상기용 액정패널장치 구동방법이 개시되는 바, 이는 기존의 액정패널 구동회로는 그대로 채용하면서, 그것을 구동하기 위한 제어부의 제어신호만을 변경하여 화면비 변환기능을 수행함으로써, 영상신호의 노이즈에 의해 발생되는 해상도 저하를 방지하고, 또한 별도의 화면비 변환회로를 사용하지 않음으로 인해 코스트를 다운시킨다.Disclosed is a method of driving a liquid crystal panel device for a wide TV receiver which displays a desired screen mode on the liquid crystal panel device while adopting a conventional liquid crystal panel device driving circuit. By changing only the control signal of the control unit for performing the aspect ratio conversion function, it is possible to prevent the resolution degradation caused by the noise of the video signal and to reduce the cost by not using a separate aspect ratio conversion circuit.

Description

와이드 텔레비젼 수상기용 액정패널장치 구동방법Driving Method of LCD Panel Device for Wide TV Receiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 이 발명에 따른 와이드 텔레비젼 수상기용 액정패널장치의 구동 회로도.2 is a driving circuit diagram of a liquid crystal panel device for a wide television receiver according to the present invention.

Claims (11)

수직 동기 신호에 동기된 쉬프트 레지스터 시작 신호와 소정 분주된 수평 동기 신호와 상승 엣지가 일치하는 소정 배의 수평 클럭 신호에 동기된 수직 클럭 신호에 의해 1수평 기간만큼 전이된 전압 파형을 각각의 행에 인가하여 순차적으로 턴온시키는 게이트 구동 과정과, 전체의 데이타 라인중에서 소정 라인에 배속 변환된 영상신호의 유효 디스플레이 기간동안 샘플링 해즐 수 있는 주파수를 수평 클럭 신호로 출력하고, 디스플레이하고자 하는 신호의 첫부분에 쉬프트 레지스터의 시작 신호를 발생시켜 열을 구동하는 소오스 구동 과정과, 디스플레이가 끝나는 신호의 타임에 수평 인에이블 신호를 발생시켜 액정패널장치의 우측을 블랭킹시키는 블랭킹 과정으로 이루어져, 16:9 화면비를 갖는 액정패널장치에 4:3 화면비의 영상신호를 표시하면서 상기 액정패널장치의 우측을 블랭킹 처리함을 특징으로 하는 와이드 텔레비젼 수상기용 액정패널장치 구동방법.In each row, a voltage waveform shifted by one horizontal period by a vertical clock signal synchronized with a shift register start signal synchronized with a vertical synchronization signal and a horizontal clock signal with a predetermined divided horizontal horizontal signal and a rising edge coinciding with each row. The gate driving process to turn on sequentially, and to output a horizontal clock signal that can be sampled during the effective display period of the video signal converted to a predetermined speed in the entire data line as a horizontal clock signal. A source driving process of driving a column by generating a shift register start signal and a blanking process of blanking the right side of the liquid crystal panel device by generating a horizontal enable signal at the time of the display ending signal, and having a 16: 9 aspect ratio. Displaying 4: 3 aspect ratio video signal on the LCD panel Water wide TV liquid crystal panel driving device which is characterized that the method appointed processing blank the right group of the liquid crystal panel unit. 제1항에 있어서, 상기 소오스 구동 과징의 수평 클럭 신호는,임을 특징으로 하는 와이드 텔레비젼 수상기용 액정패널장치 구동방법.The horizontal clock signal of the source driving penalty, wherein: A method of driving a liquid crystal panel device for a wide television receiver, characterized in that. 여기서, 540은 전체 720 데이타 라인의 3/4이고, 26㎲는 영상신호의 유효 디스플레이 기간.Where 540 is 3/4 of the total 720 data lines, and 26 ms is the effective display period of the video signal. 수직 동기 신호에 동기된 쉬프트 레지스터 시작 신호와 소정 분주된 수평 동기 신호와 상승 엣지가 일치하는 소정 배의 수평 클럭 신호에 동기된 수직 클럭 신호에 의해 1수평기간만큼 전이된 전압 파형을 각각의 행에 인가하여 순차적으로 턴온시키는 게이트 구동 과정과, 제1열로부터 블랭킹을 원하는 좌축의 소정열까지의 샘플링은 실제 데이타의 샘플링 주파수보다 높은 주파수를 갖는 클럭을 통해 행하도록 하고, 쉬프트 레지스터 시작신호의 위치를 상기 소정 열이 고속 클럭에서 샘플링되도록 발생시켜 액정패널장치의 좌측을 블랭킹시키는 제1블랭킹 과정과, 액정패널장치에 디스플레이되는 기간의 수평 클럭 신호는 상기 제1블랭킹 과정의 클럭보다 소정시간 늦게 발생시켜 열을 구동하는 소오스 구동 과정과, 디스플레이가 끝나는 신호의 타임에 수평 인에이블 신호를 발생시켜 액정패널장치의 우측을 블랭킹시키는 제2블랭킹 과정으로 이루어져, 16:9 화면비를 갖는 액정패널장치에 4:3 화면비의 영상신호를 표시하면서 좌우 양측을 블랭킹 처리함을 특징으로 하는 와이드 텔레비젼 수상기용 액정패널장치 구동방법.In each row, a voltage waveform shifted by one horizontal period is shifted by a vertical clock signal synchronized with a shift register start signal synchronized with a vertical synchronization signal and a horizontal clock signal with a predetermined divided horizontal horizontal signal and a rising edge coinciding with each other. The gate driving process of applying and turning on sequentially and sampling from the first column to a predetermined column of the left axis to be blanked are performed by using a clock having a frequency higher than the sampling frequency of the actual data, and positioning the shift register start signal. The first blanking process of blanking the left side of the liquid crystal panel device by generating the predetermined column to be sampled at a high speed clock, and the horizontal clock signal of the period displayed on the liquid crystal panel device is generated later than the clock of the first blanking process by a predetermined time. Source driving process to drive heat, and time of signal to end display And a second blanking process of blanking the right side of the liquid crystal panel device by generating a horizontal enable signal on the right side, blanking the left and right sides while displaying a 4: 3 aspect ratio image signal on the liquid crystal panel device having a 16: 9 aspect ratio. A method of driving a liquid crystal panel device for a wide television receiver. 수직 동기 신호에 동기된 쉬프트 레지스터 시작 신호와 소정 분주된 수평 동기 신호와 상승 엣지가 일치하는 소정 배의 수평 클럭 신호에 동기된 수직 클럭 신호에 의해 1수평 기간만큼 전이된 전압 파형을 각각의 행에 인가하여 순차적으로 턴온시키는 게이트 구동 과정과, 전체의 데이타 라인에 배속 변환된 영상신호의 유효 디스플레이 기간동안 샘플링해줄 수 있는 주파수를 수평 클럭 신호로 출력하고, 디스플레이하고자 하는 신호의 첫부분에 쉬프트 레지스터의 시작 신호를 발생시켜 열을 구동하는 소오스 구동과정으로 이루어져, 4:3 화면비의 영상신호를 가로 확대하여 16:9 화면비의 액정패널장치에 표시함을 특징으로 하는 와이드 텔레비젼 수상기용 액정패널장치 구동방법.In each row, a voltage waveform shifted by one horizontal period by a vertical clock signal synchronized with a shift register start signal synchronized with a vertical synchronization signal and a horizontal clock signal with a predetermined divided horizontal horizontal signal and a rising edge coinciding with each row. The gate driving process to sequentially turn on and output the frequency that can be sampled during the effective display period of the video signal converted to the entire data line as a horizontal clock signal, and at the beginning of the signal to display A source driving process for generating a start signal to drive heat, and widening a 4: 3 aspect ratio video signal horizontally and displaying the same on a 16: 9 aspect ratio liquid crystal panel device. . 제4항에 있어서, 상기 소오스 구동 과정의 수평 클럭 신호는,임을 특징으로 하는 와이드 텔레비젼 수상기용 액정패널장치 구동방법.The horizontal clock signal of claim 4, wherein the horizontal clock signal of the source driving process includes: A method of driving a liquid crystal panel device for a wide television receiver, characterized in that. 여기서, 720은 전체 데이타 라인이고, 26㎲는 영상신호의 유효 디스플레이 기간.Where 720 is the entire data line, and 26 ms is the effective display period of the video signal. 4개의 게이트 라인중에서 2개의 게이트 라인은 동시에 주사시키고, 쉬프트 레지스터 시작 신호의 위치는 수직 동기 신호를 기준으로 소정 시간 늦게 발생시켜 신호의 주사선수를 전체 행 라인에서 이의 3/4인 소정 라인으로 감소시켜 소정 행라인의 신호를 전체 행 라인의 액정패널에 표시하는 게이트 구동 과정과, 전체의 데이타라인에 배속 변환된 영상신호의 유효 디스플레이 기간동안 샘플링 해줄 수 있는 주파수를 수평 클럭 신호로 출력하고, 디스플레이시키고자 하는 신호의 첫 부분에 쉬프트 레지스터의 시작 신호를 발생시켜 열을 구동하는 소오스 구동 과정으로 이루어져, 4:3 화면비의 영상신호를 확대한 후 상·하측을 블랭킹시켜 16:9 화면비의 액정패널장치에 표시함을 특징으로 하는 와이드 텔레비젼 수상기용 액정패널장치 구동방법.Of the four gate lines, two gate lines are scanned simultaneously, and the position of the shift register start signal is generated a predetermined time later with respect to the vertical synchronizing signal, thereby reducing the scanning line of the signal from the entire row line to the predetermined line of 3/4 thereof. The gate driving process of displaying the signal of a predetermined row line on the liquid crystal panel of all the row lines, and outputting a frequency that can be sampled during the effective display period of the video signal converted at double speed on the entire data line as a horizontal clock signal, and displaying It consists of a source driving process that generates the start signal of the shift register at the first part of the signal to be driven to drive a column, and enlarges the 4: 3 aspect ratio image signal and blanks the upper and lower sides, thereby blanking the 16: 9 aspect ratio liquid crystal panel. A display method for driving a liquid crystal panel device for a wide television receiver, characterized by displaying on a device. 제6항에 있어서, 상기 소오스 구동 과정의 수평 클럭 신호는,임을 특징으로 하는 와이드 텔레비젼 수상기용 액정패널장치 구동방법.The method of claim 6, wherein the horizontal clock signal of the source driving process, A method of driving a liquid crystal panel device for a wide television receiver, characterized in that. 여기서, 720은 전체 데이타 라인이고, 26㎲는 영상신호의 유효 디스플레이 기간.Where 720 is the entire data line, and 26 ms is the effective display period of the video signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940020355A 1994-08-18 1994-08-18 The liquid crystal driving device for a wide tv receiving set KR0147597B1 (en)

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KR0147597B1 KR0147597B1 (en) 1998-12-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362804B1 (en) 1997-05-17 2002-03-26 L G Electronics Inc. Liquid crystal display with picture displaying function for displaying a picture in an aspect ratio different from the normal aspect ratio

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100502808B1 (en) * 1998-01-21 2005-10-14 삼성전자주식회사 Liquid crystal display with multiple screens and its driving method
KR100923498B1 (en) * 2003-03-06 2009-10-27 엘지디스플레이 주식회사 Active Matrix Liquid Crystal Display and Driving Method
TW200721841A (en) * 2005-11-29 2007-06-01 Novatek Microelectronics Corp Method for displaying non-specified resolution frame on panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362804B1 (en) 1997-05-17 2002-03-26 L G Electronics Inc. Liquid crystal display with picture displaying function for displaying a picture in an aspect ratio different from the normal aspect ratio

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