KR20020057036A - 액정표시장치의 구동회로 및 그 구동방법 - Google Patents
액정표시장치의 구동회로 및 그 구동방법 Download PDFInfo
- Publication number
- KR20020057036A KR20020057036A KR1020000087268A KR20000087268A KR20020057036A KR 20020057036 A KR20020057036 A KR 20020057036A KR 1020000087268 A KR1020000087268 A KR 1020000087268A KR 20000087268 A KR20000087268 A KR 20000087268A KR 20020057036 A KR20020057036 A KR 20020057036A
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- vcom
- driving
- data
- data line
- Prior art date
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Classifications
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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
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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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)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
Claims (5)
- 데이터 출력회로부와,포지티브 필드 구동시 하이 임피던스 구간에서 Vcom+ 전압을 데이터 라인으로 스위칭하여 상기 데이터 라인을 Vcom+ 전압으로 프리챠지 시키는 제 1 스위칭 소자와,네가티브 필드 구동시 하이 임피던스 구간에서 Vcom- 전압을 데이터 라인으로 스위칭하여 상기 데이터 라인을 Vom-전압으로 프리챠지 시키는 제 2 스위칭 소자와,상기 제 1, 제 2 스위칭 소자에 의해 Vcom+ 또는 Vcom-로 프리챠지가 완료된 후, 상기 데이터 출력회로부에서 출력되는 데이터를 화소전극으로 스위칭하는 제 3 스위칭 소자를 포함하여 구성되는 것을 특징으로 하는 액정표시장치의 구동회로.
- 액정표시장치 구동회로의 데이터 출력방법에 있어서,포지티브 필드 구동시, 하이 임피던스 구간에서는 데이터 라인을 Vcom+전압으로 프리챠지시킨 다음 데이터를 출력하고, 네가티브 필드 구동시 하이 임피던스 구간에서는 데이터 라인을 Vcom-전압으로 프리챠지시킨 다음 데이터를 출력하는 것을 특징으로 하는 액정표시장치 구동회로의 구동방법.
- 제 2 항에 있어서, 상기 Vcom+전압은 포지티브 필드의 최대 레퍼런스 전압보다 작거나 같고, 최소 레퍼런스 전압보다 크거나 같은 범위로 설정하는 것을 특징으로 하는 액정표시장치 구동회로의 구동방법.
- 제 2 항에 있어서, 상기 Vcom-전압은 네가티브 필드의 최대 레퍼런스 전압보다 작거나 같고 최소 레퍼런스 전압보다 크거나 같은 범위로 설정하는 것을 특징으로 하는 액정표시장치 구동회로의 구동방법.
- 제 2 항에 있어서, 상기 Vcom+전압 또는 Vcom-전압은 한 필드의 하이 임피던스 구간의 시작점으로부터 ±0.5수평주기구간에서 프리챠지시키는 것을 특징으로 하는 액정표시장치 구동회로의 구동방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0087268A KR100412120B1 (ko) | 2000-12-30 | 2000-12-30 | 액정표시장치의 구동회로 및 그 구동방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0087268A KR100412120B1 (ko) | 2000-12-30 | 2000-12-30 | 액정표시장치의 구동회로 및 그 구동방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020057036A true KR20020057036A (ko) | 2002-07-11 |
KR100412120B1 KR100412120B1 (ko) | 2003-12-31 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR10-2000-0087268A KR100412120B1 (ko) | 2000-12-30 | 2000-12-30 | 액정표시장치의 구동회로 및 그 구동방법 |
Country Status (1)
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KR (1) | KR100412120B1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100889541B1 (ko) * | 2002-12-30 | 2009-03-23 | 엘지디스플레이 주식회사 | 액정표시장치의 구동회로 |
US8305374B2 (en) | 2007-06-08 | 2012-11-06 | Samsung Display Co., Ltd. | Display device having precharge operations and method of driving the same |
KR20130071995A (ko) * | 2011-12-21 | 2013-07-01 | 엘지디스플레이 주식회사 | 액정표시장치와 그 구동방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08313867A (ja) * | 1995-05-16 | 1996-11-29 | Nec Corp | 液晶表示器駆動電源回路 |
JP3195230B2 (ja) * | 1996-03-26 | 2001-08-06 | シャープ株式会社 | 駆動装置 |
JP3377739B2 (ja) * | 1997-11-17 | 2003-02-17 | シャープ株式会社 | 液晶表示装置の駆動方法及び駆動回路 |
JP3738311B2 (ja) * | 1999-01-18 | 2006-01-25 | カシオ計算機株式会社 | 液晶表示駆動装置 |
-
2000
- 2000-12-30 KR KR10-2000-0087268A patent/KR100412120B1/ko active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100889541B1 (ko) * | 2002-12-30 | 2009-03-23 | 엘지디스플레이 주식회사 | 액정표시장치의 구동회로 |
US8305374B2 (en) | 2007-06-08 | 2012-11-06 | Samsung Display Co., Ltd. | Display device having precharge operations and method of driving the same |
KR20130071995A (ko) * | 2011-12-21 | 2013-07-01 | 엘지디스플레이 주식회사 | 액정표시장치와 그 구동방법 |
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Publication number | Publication date |
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KR100412120B1 (ko) | 2003-12-31 |
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