JP4278510B2 - 液晶表示装置及び駆動方法 - Google Patents
液晶表示装置及び駆動方法 Download PDFInfo
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- JP4278510B2 JP4278510B2 JP2003505696A JP2003505696A JP4278510B2 JP 4278510 B2 JP4278510 B2 JP 4278510B2 JP 2003505696 A JP2003505696 A JP 2003505696A JP 2003505696 A JP2003505696 A JP 2003505696A JP 4278510 B2 JP4278510 B2 JP 4278510B2
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 45
- 238000000034 method Methods 0.000 title claims description 15
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 206010047571 Visual impairment Diseases 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 6
- 230000003071 parasitic effect Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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
- G09G3/2007—Display of intermediate tones
- G09G3/2011—Display of intermediate tones by amplitude modulation
-
- 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
-
- 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
- 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
- G09G3/3696—Generation of voltages supplied to electrode drivers
-
- 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
- G09G2320/0219—Reducing feedthrough effects in active matrix panels, i.e. voltage changes on the scan electrode influencing the pixel voltage due to capacitive coupling
-
- 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
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
-
- 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
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
ガンマ電圧生成器220は、前記制御機210からのガンマ電圧制御信号に基づいてガンマ電圧を生成する。図6のように、ガンマ電圧は抵抗列を使用して分圧することにより生成される。ガンマ電圧生成器220によって生成されたガンマ電圧は、同一数のガンマ電圧からなる2つのグループのガンマ電圧を含む。つまり、共通電圧Vcomより大きいVGMAUP1、VGMAUP2、VGMAUP3、...、VGMAUP(n)を含む高ガンマ電圧群と共通電圧Vcomより小さいVGMADN1、VGMADN2、VGMADN3、...、VGMADN(n)を含む低ガンマ電圧群とがある。
Claims (4)
- 所定の階調のそれぞれについて共通電圧より高いガンマ電圧と低いガンマ電圧とを一つずつ生成し、生成されたガンマ電圧を利用して階調ごとに異なる階調電圧を生成し、生成された階調電圧を利用して、共通電圧に対する極性が周期的に反転するデータ電圧を液晶表示パネルに対して印加することにより前記液晶表示パネルに画像を表示する液晶表示装置であって、
全ての階調から、最高階調、最低階調、及び、前記最高階調と前記最低階調との中間に位置する特定の階調を含む複数の階調を前記所定の階調として選択して、前記所定の階調のそれぞれについて共通電圧より高いガンマ電圧と低いガンマ電圧との対を生成し、使用者又はアプリケーションプログラムから所定の方法で入力される各階調でのキックバック電圧の値を受け付けて、前記特定の階調でのキックバック電圧の値を示す共通電圧制御信号を出力し、前記所定の階調のうち、前記特定の階調と、前記特定の階調を除く他の階調との間でガンマ電圧の対の中間値の差がキックバック電圧の差を相殺するように、前記他の階調についてのガンマ電圧を調整するガンマ電圧生成部、及び、
前記共通電圧制御信号に応じて、前記共通電圧制御信号の示す前記特定の階調でのキックバック電圧の値だけ共通電圧を変更して前記液晶表示パネルに出力する共通電圧生成部、
を含む、液晶表示装置。 - 前記ガンマ電圧生成部は、次式を満たすように前記他の階調のガンマ電圧を調整する、請求項1に記載の液晶表示装置、
- 所定の階調のそれぞれについて共通電圧より高いガンマ電圧と低いガンマ電圧とを一つずつ生成し、生成されたガンマ電圧を利用して階調ごとに異なる階調電圧を生成し、生成された階調電圧を利用して、共通電圧に対する極性が周期的に反転するデータ電圧を液晶表示パネルに対して印加することにより前記液晶表示パネルに画像を表示する液晶表示装置の駆動方法であって、
全ての階調から、最高階調、最低階調、及び、前記最高階調と前記最低階調との中間に位置する特定の階調を含む複数の階調を前記所定の階調として選択して、前記所定の階調のそれぞれについて共通電圧より高いガンマ電圧と低いガンマ電圧との対を生成する段階、
使用者又はアプリケーションプログラムから所定の方法で入力される各階調でのキックバック電圧の値を受け付ける段階、
前記特定の階調でのキックバック電圧の値を示す共通電圧制御信号を生成する段階、
前記所定の階調のうち、前記特定の階調と、前記特定の階調を除く他の階調との間でガンマ電圧の対の中間値の差がキックバック電圧の差を相殺するように、前記他の階調についてのガンマ電圧を調整する段階、及び、
前記共通電圧制御信号の示す前記特定の階調でのキックバック電圧の値だけ共通電圧を変更して前記液晶表示パネルに出力する段階、
を含む、液晶表示装置の駆動方法。 - 前記ガンマ電圧を調整する段階では、次式が満たされるように、前記他の階調のガンマ電圧が調整される、請求項3に記載の液晶表示装置の駆動方法、
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010034367A KR100729769B1 (ko) | 2001-06-18 | 2001-06-18 | 액정 표시 장치 |
PCT/KR2002/001153 WO2002103437A2 (en) | 2001-06-18 | 2002-06-18 | Liquid crystal display |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004530171A JP2004530171A (ja) | 2004-09-30 |
JP4278510B2 true JP4278510B2 (ja) | 2009-06-17 |
Family
ID=19710981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003505696A Expired - Lifetime JP4278510B2 (ja) | 2001-06-18 | 2002-06-18 | 液晶表示装置及び駆動方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US7193595B2 (ja) |
EP (1) | EP1407444B1 (ja) |
JP (1) | JP4278510B2 (ja) |
KR (1) | KR100729769B1 (ja) |
CN (1) | CN1312653C (ja) |
AU (1) | AU2002314575A1 (ja) |
WO (1) | WO2002103437A2 (ja) |
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JP3277121B2 (ja) * | 1996-05-22 | 2002-04-22 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 液晶デイスプレイの中間表示駆動方式 |
JP3674297B2 (ja) * | 1997-03-14 | 2005-07-20 | セイコーエプソン株式会社 | 液晶表示装置のダイナミックレンジ調整方法並びに液晶表示装置及び電子機器 |
KR100271092B1 (ko) * | 1997-07-23 | 2000-11-01 | 윤종용 | 서로 다른 공통 전압을 가지는 액정 표시 장치 |
JP4189062B2 (ja) * | 1998-07-06 | 2008-12-03 | セイコーエプソン株式会社 | 電子機器 |
JP2000134507A (ja) * | 1998-10-21 | 2000-05-12 | Sony Corp | ガンマ補正回路 |
JP2000310977A (ja) * | 1999-04-28 | 2000-11-07 | Matsushita Electric Ind Co Ltd | 液晶表示装置 |
KR100604718B1 (ko) * | 1999-07-05 | 2006-07-28 | 엘지.필립스 엘시디 주식회사 | 액정표시장치 및 그 액정표시장치의 킥백전압 보정방법. |
KR100344186B1 (ko) * | 1999-08-05 | 2002-07-19 | 주식회사 네오텍리서치 | 액정표시장치의 소오스 구동회로 및 그 구동방법 |
-
2001
- 2001-06-18 KR KR1020010034367A patent/KR100729769B1/ko active IP Right Grant
-
2002
- 2002-06-18 AU AU2002314575A patent/AU2002314575A1/en not_active Abandoned
- 2002-06-18 WO PCT/KR2002/001153 patent/WO2002103437A2/en active Application Filing
- 2002-06-18 US US10/482,241 patent/US7193595B2/en not_active Expired - Lifetime
- 2002-06-18 EP EP02741465.5A patent/EP1407444B1/en not_active Expired - Lifetime
- 2002-06-18 JP JP2003505696A patent/JP4278510B2/ja not_active Expired - Lifetime
- 2002-06-18 CN CNB028153626A patent/CN1312653C/zh not_active Expired - Lifetime
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2007
- 2007-02-27 US US11/712,337 patent/US7417612B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2002103437A2 (en) | 2002-12-27 |
KR100729769B1 (ko) | 2007-06-20 |
CN1312653C (zh) | 2007-04-25 |
AU2002314575A1 (en) | 2003-01-02 |
EP1407444A2 (en) | 2004-04-14 |
US20070211006A1 (en) | 2007-09-13 |
WO2002103437A3 (en) | 2003-11-06 |
KR20020095979A (ko) | 2002-12-28 |
JP2004530171A (ja) | 2004-09-30 |
CN1539135A (zh) | 2004-10-20 |
US20040169629A1 (en) | 2004-09-02 |
US7417612B2 (en) | 2008-08-26 |
US7193595B2 (en) | 2007-03-20 |
EP1407444B1 (en) | 2016-03-30 |
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