KR100503941B1 - 액정구동장치 - Google Patents
액정구동장치 Download PDFInfo
- Publication number
- KR100503941B1 KR100503941B1 KR10-2002-0068657A KR20020068657A KR100503941B1 KR 100503941 B1 KR100503941 B1 KR 100503941B1 KR 20020068657 A KR20020068657 A KR 20020068657A KR 100503941 B1 KR100503941 B1 KR 100503941B1
- Authority
- KR
- South Korea
- Prior art keywords
- period
- signal
- control signal
- vertical blanking
- circuit
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 36
- 230000000873 masking effect Effects 0.000 claims description 30
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 11
- 230000007257 malfunction Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 8
- 230000008033 biological extinction Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- 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
- G09G3/3614—Control of polarity reversal in general
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
Claims (5)
- 수직블랭킹기간중에도 화상신호선 구동회로에 대해 교류화를 위한 제어신호를 소정의 주기로 공급하도록 구성된 액정구동장치로서,마스킹신호를 발생하는 마스킹신호생성회로를 가지며, 상기 수직블랭킹기간에 대응하는 상기 제어신호 중, 그 최종의 주기에 대응하는 상기 제어신호만을 상기 마스킹 신호에 기초하여 소거하는 것을 특징으로 하는 액정구동장치.
- 제 1항에 있어서, 상기 소정의 주기가 수평동기신호에 대응한 주기인 것을 특징으로 하는 액정구동장치.
- 제 2항에 있어서, 상기 마스킹신호 생성회로는 상기 수직블랭킹기간중에서의 수평동기신호 수를 카운트하고, 그 카운트 값에 기초하여 상기 마스킹신호를 발생하는 것을 특징으로 하는 액정구동장치.
- 제 1항에 있어서, 유효기간판별회로를 더욱 가지며, 상기 마스킹신호가 상기 유효기간 판별회로에 공급되고,상기 수직블랭킹기간에 대응하는 상기 제어신호 중, 그 최종의 주기에 대응하는 상기 제어신호만을 상기 유효기간판별회로가 소거하는 것을 특징으로 하는 액정구동장치.
- 제 4항에 있어서, 상기 제어신호를 공급하는 타이밍 컨트롤러를 더욱 가지며, 상기 유효기간판별회로가 상기 타이밍 컨트롤러와 상기 화상신호구동회로와의 사이에 접속되고, 상기 유효기간 판별회로가 상기 타이밍 컨트롤러에서 공급되는 상기 제어신호에 대해 상기 수직블랭킹기간에 대응하는 상기 제어신호 중, 그 최종 주기에 대응하는 상기 제어신호만을 소거하는 것을 특징으로 하는 액정구동장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2001-00358824 | 2001-11-26 | ||
JP2001358824A JP3719974B2 (ja) | 2001-11-26 | 2001-11-26 | 液晶駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030043640A KR20030043640A (ko) | 2003-06-02 |
KR100503941B1 true KR100503941B1 (ko) | 2005-07-27 |
Family
ID=19169938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0068657A KR100503941B1 (ko) | 2001-11-26 | 2002-11-07 | 액정구동장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7102607B2 (ko) |
JP (1) | JP3719974B2 (ko) |
KR (1) | KR100503941B1 (ko) |
TW (1) | TW567460B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100832513B1 (ko) * | 2006-01-18 | 2008-05-26 | 미쓰비시덴키 가부시키가이샤 | 액티브 매트릭스 표시장치 및 그것의 타이밍 제어용반도체장치 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4617132B2 (ja) | 2004-10-15 | 2011-01-19 | シャープ株式会社 | 液晶表示装置及び液晶表示装置における誤動作防止方法 |
TWI509594B (zh) * | 2011-04-18 | 2015-11-21 | Au Optronics Corp | 使顯示器水平同步訊號與外部水平同步訊號同步之方法及相關裝置 |
KR101872430B1 (ko) * | 2011-08-25 | 2018-07-31 | 엘지디스플레이 주식회사 | 액정표시장치 및 그 구동 방법 |
CN104900211B (zh) * | 2015-06-30 | 2017-04-05 | 京东方科技集团股份有限公司 | 一种栅极驱动电路及其驱动方法、显示装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000066091A (ko) * | 1999-04-13 | 2000-11-15 | 김영환 | 액정 표시 장치의 액정 극성 반전 신호 제어 장치 |
KR20010004882A (ko) * | 1999-06-30 | 2001-01-15 | 김영환 | 액정표시소자의 수직 크로스토크 보상방법 |
KR20010065766A (ko) * | 1999-12-30 | 2001-07-11 | 박종섭 | 구동 주파수를 감소시키기 위한 액정 표시 장치 및 이를이용한 주파수 변조 방법 |
JP2001194642A (ja) * | 2000-01-12 | 2001-07-19 | Nec Viewtechnology Ltd | 液晶表示のブランキング装置及びそのブランキング方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6404889B1 (en) * | 1997-06-30 | 2002-06-11 | Macrovision Corporation | Protection of a component video signal |
JPH11231843A (ja) * | 1998-02-16 | 1999-08-27 | Sony Corp | 液晶表示装置 |
JP3336408B2 (ja) * | 1998-07-17 | 2002-10-21 | 株式会社アドバンスト・ディスプレイ | 液晶表示装置 |
JP4277148B2 (ja) * | 2000-01-07 | 2009-06-10 | シャープ株式会社 | 液晶表示装置及びその駆動方法 |
US6778170B1 (en) * | 2000-04-07 | 2004-08-17 | Genesis Microchip Inc. | Generating high quality images in a display unit without being affected by error conditions in synchronization signals contained in display signals |
JP2001333392A (ja) * | 2000-05-23 | 2001-11-30 | Matsushita Electric Ind Co Ltd | 水平偏向回路およびテレビジョン受像機 |
JP3911141B2 (ja) * | 2001-09-18 | 2007-05-09 | 株式会社日立製作所 | 液晶表示装置およびその駆動方法 |
-
2001
- 2001-11-26 JP JP2001358824A patent/JP3719974B2/ja not_active Expired - Lifetime
-
2002
- 2002-10-24 TW TW091124632A patent/TW567460B/zh not_active IP Right Cessation
- 2002-11-07 KR KR10-2002-0068657A patent/KR100503941B1/ko active IP Right Grant
- 2002-11-25 US US10/303,067 patent/US7102607B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000066091A (ko) * | 1999-04-13 | 2000-11-15 | 김영환 | 액정 표시 장치의 액정 극성 반전 신호 제어 장치 |
KR20010004882A (ko) * | 1999-06-30 | 2001-01-15 | 김영환 | 액정표시소자의 수직 크로스토크 보상방법 |
KR20010065766A (ko) * | 1999-12-30 | 2001-07-11 | 박종섭 | 구동 주파수를 감소시키기 위한 액정 표시 장치 및 이를이용한 주파수 변조 방법 |
JP2001194642A (ja) * | 2000-01-12 | 2001-07-19 | Nec Viewtechnology Ltd | 液晶表示のブランキング装置及びそのブランキング方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100832513B1 (ko) * | 2006-01-18 | 2008-05-26 | 미쓰비시덴키 가부시키가이샤 | 액티브 매트릭스 표시장치 및 그것의 타이밍 제어용반도체장치 |
US7773083B2 (en) | 2006-01-18 | 2010-08-10 | Mitsubishi Electric Corporation | Active matrix display device and semiconductor device for timing control thereof |
Also Published As
Publication number | Publication date |
---|---|
KR20030043640A (ko) | 2003-06-02 |
US20030098838A1 (en) | 2003-05-29 |
JP2003162257A (ja) | 2003-06-06 |
JP3719974B2 (ja) | 2005-11-24 |
TW567460B (en) | 2003-12-21 |
US7102607B2 (en) | 2006-09-05 |
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