KR100920372B1 - 액정표시장치의 구동방법 및 장치 - Google Patents
액정표시장치의 구동방법 및 장치 Download PDFInfo
- Publication number
- KR100920372B1 KR100920372B1 KR1020020073085A KR20020073085A KR100920372B1 KR 100920372 B1 KR100920372 B1 KR 100920372B1 KR 1020020073085 A KR1020020073085 A KR 1020020073085A KR 20020073085 A KR20020073085 A KR 20020073085A KR 100920372 B1 KR100920372 B1 KR 100920372B1
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- South Korea
- Prior art keywords
- frequency
- liquid crystal
- driving
- backlight unit
- electrode
- Prior art date
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- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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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
- G09G3/22—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 using controlled light sources
- G09G3/28—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/294—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge
- G09G3/2946—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for lighting or sustain discharge by introducing variations of the frequency of sustain pulses within a frame or non-proportional variations of the number of sustain pulses in each subfield
-
- 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
Abstract
Description
Claims (6)
- 프레임 주파수를 정수배로 체배하여 온/오프 주파수를 생성하는 단계와,상기 프레임 주파수에 기초하여 액정셀이 매트릭스 형태로 배치되는 액정패널을 구동하는 단계와,상기 온/오프 주파수에 따라 백라이트 유닛을 구동하여 상기 액정패널에 광을 조사하는 단계를 포함하고,상기 프레임 주파수는 60Hz이며, 상기 온/오프 주파수는 상기 프레임 주파수의 nπ(단, n은 1이상의 양의 정수) 주기마다 상기 프레임 주파수와 동일한 위상을 갖는 것을 특징으로 하는 액정표시장치의 구동방법.
- 삭제
- 제 1 항에 있어서,상기 온/오프 주파수는 상기 프레임 주파수의 4배 내지 6배로 체배되는 것을 특징으로 하는 액정표시장치의 구동방법.
- 프레임 주파수를 정수배로 체배하여 온/오프 주파수를 생성하는 주파수 체배기와,상기 프레임 주파수에 기초하여 액정셀이 매트릭스 형태로 배치되는 액정패널을 구동하는 구동부와,상기 주파수 체배기로부터의 상기 온/오프 주파수에 따라 백라이트 유닛을 구동하여 상기 액정패널에 광을 조사하는 백라이트 유닛을 구비하고,상기 프레임 주파수는 60Hz이며, 상기 온/오프 주파수는 상기 프레임 주파수의 nπ(단, n은 1이상의 양의 정수) 주기마다 상기 프레임 주파수와 동일한 위상을 갖는 것을 특징으로 하는 액정표시장치의 구동장치.
- 삭제
- 제 4 항에 있어서,상기 주파수 체배기는 상기 프레임 주파수의 4배 내지 6배로 체배하여 상기 온/오프 주파수를 생성하는 것을 특징으로 하는 액정표시장치의 구동장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020073085A KR100920372B1 (ko) | 2002-11-22 | 2002-11-22 | 액정표시장치의 구동방법 및 장치 |
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KR1020020073085A KR100920372B1 (ko) | 2002-11-22 | 2002-11-22 | 액정표시장치의 구동방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
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KR20040045079A KR20040045079A (ko) | 2004-06-01 |
KR100920372B1 true KR100920372B1 (ko) | 2009-10-07 |
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KR1020020073085A KR100920372B1 (ko) | 2002-11-22 | 2002-11-22 | 액정표시장치의 구동방법 및 장치 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100882647B1 (ko) * | 2007-04-17 | 2009-02-06 | 엘지이노텍 주식회사 | 외부 동기형 위상 시프트 회로 |
KR101502834B1 (ko) | 2008-11-04 | 2015-03-17 | 삼성디스플레이 주식회사 | 광원 모듈의 구동 장치, 이 구동 장치를 갖는 광원 장치, 광원 모듈의 구동 방법 및 이 구동 장치를 갖는 표시 장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990040372A (ko) * | 1997-11-18 | 1999-06-05 | 이형도 | 액정화면장치의 디밍회로 |
KR20010040109A (ko) * | 1999-10-28 | 2001-05-15 | 이데이 노부유끼 | 액정 디스플레이 장치 및 디스플레이 방법 |
KR20030075626A (ko) * | 2002-03-20 | 2003-09-26 | 비오이 하이디스 테크놀로지 주식회사 | 표시 장치에 사용되는 저잡음의 백라이트 시스템 및 이를구동하는 방법 |
KR100617877B1 (ko) * | 1999-03-11 | 2006-09-05 | 삼성전자주식회사 | 물결 현상 방지를 위한 액정표시장치 |
-
2002
- 2002-11-22 KR KR1020020073085A patent/KR100920372B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990040372A (ko) * | 1997-11-18 | 1999-06-05 | 이형도 | 액정화면장치의 디밍회로 |
KR100617877B1 (ko) * | 1999-03-11 | 2006-09-05 | 삼성전자주식회사 | 물결 현상 방지를 위한 액정표시장치 |
KR20010040109A (ko) * | 1999-10-28 | 2001-05-15 | 이데이 노부유끼 | 액정 디스플레이 장치 및 디스플레이 방법 |
KR20030075626A (ko) * | 2002-03-20 | 2003-09-26 | 비오이 하이디스 테크놀로지 주식회사 | 표시 장치에 사용되는 저잡음의 백라이트 시스템 및 이를구동하는 방법 |
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KR20040045079A (ko) | 2004-06-01 |
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