JP5362755B2 - 液晶ディスプレイ及び画像の輝度減少又は輝度増加を訂正する方法 - Google Patents
液晶ディスプレイ及び画像の輝度減少又は輝度増加を訂正する方法 Download PDFInfo
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- 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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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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
- 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
- G09G3/3685—Details of drivers for data electrodes
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- G—PHYSICS
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- G09G2300/04—Structural and physical details of display devices
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- G—PHYSICS
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- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0204—Compensation of DC component across the pixels in flat panels
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- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
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- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
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- 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
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
同1出願人による米国特許出願を以下に示す。
更に示されているように、各々のサブ画素はカラムライン(カラム・ドライバ110によって各々駆動される)およびローライン(例えば112および114)に接続されている。AMLCDパネルの分野において、クロスストロークまたはフリッカーを減らすためにドット反転方式でパネルを駆動させることは公知である。図1Aは、各サブ画素の中央に記載された「+」および「−」極性によって示される特定のドット反転方式(すなわち1×1ドット反転方式)を示している。各ローラインは、通常は、TFT 116のゲート(図1Aに示されない)に接続されている。画像データ(カラムラインを介して供給される)は、通常は、各TFTのソースに接続される。画像データは、1度にパネルの1列に記録されると共に、奇数(ODD(「O」))あるいは偶数(EVEN(「E」))方式として本明細書中に示される極性バイアス方式が与えられる。図に示されるように、行112は特定の時に奇数極性方式によって記録され、一方、行114は次の時に偶数極性方式によって記録される。これらの極性は、この1×1ドット反転方式において、1度に1列だけ奇数および偶数方式を変更する。
Claims (10)
- 液晶ディスプレイであって、
第1の方向に偶数のサブ画素を有し、少なくとも1列の青のサブ画素を有するサブ画素繰り返し集団から実質的に構成されるパネルと、
前記パネルに画像データおよび極性信号を送るドライバと、
を備えており、
前記極性信号は、ドライバ・チップ毎に極性を反転させる1×1ドット反転方式で前記パネルを駆動し、
前記ドライバは、前記極性を反転させることにより前記サブ画素の劣化が回避されない場合、事前に決定された実質的に一貫する輝度エラーを有する複数のサブ画素の画像データに輝度を訂正する訂正信号を加えることを特徴とする液晶ディスプレイ。 - 液晶ディスプレイであって、
第1の方向に偶数のサブ画素を有し、少なくとも1列の青のサブ画素を有するサブ画素繰り返し集団から実質的に構成されるパネルと、
前記パネルに画像データおよび極性信号を送るドライバと、
を備えており、
前記極性信号は、4列毎に極性を反転させる1×2ドット反転方式で前記パネルを駆動し、
前記ドライバは、前記極性を反転させることにより前記サブ画素の劣化が回避されない場合、事前に決定された実質的に一貫する輝度エラーを有する複数のサブ画素の画像データに輝度を訂正する訂正信号を加えることを特徴とする液晶ディスプレイ。 - 実質的に一貫する輝度エラーを有する前記複数のサブ画素は、青のサブ画素であることを特徴とする請求項1に記載の液晶ディスプレイ。
- 前記サブ画素によって示されるエラーをテスト信号によって測定し、実質的に一貫する輝度エラーを有するサブ画素を事前に決定することを特徴とする請求項1または2に記載の液晶ディスプレイ。
- 前記訂正信号を経験的にテストし、前記訂正信号が前記エラーを実質的に訂正するかどうかを事前に検査することを特徴とする請求項1または2に記載の液晶ディスプレイ。
- 第1の方向において偶数のサブ画素を有し、少なくとも1列の青のサブ画素を有するサブ画素繰り返し集団から実質的に構成されるパネルと、前記パネルに画像データおよび極性信号を送るドライバと、を備える液晶ディスプレイにおいて、前記パネルにおいて画像の輝度減少又は輝度増加を訂正する方法であって、
極性を反転させることにより前記サブ画素の劣化が回避されない場合、実質的に一貫する輝度エラーを有するサブ画素を事前に決定する工程と、
前記サブ画素に適用する訂正信号を決定する工程と、
前記訂正信号を前記サブ画素の極性を有する画像データに加える工程と、
を備え、
前記極性信号は、前記ドライバ・チップ毎に極性を反転させる1×1ドット反転方式で前記パネルを駆動することを特徴とする方法。 - 第1の方向において偶数のサブ画素を有し、少なくとも1列の青のサブ画素を有するサブ画素繰り返し集団から実質的に構成されるパネルと、前記パネルに画像データおよび極性信号を送るドライバと、を備える液晶ディスプレイにおいて、前記パネルにおいて画像の輝度減少又は輝度増加を訂正する方法であって、
極性を反転させることにより前記サブ画素の劣化が回避されない場合、実質的に一貫する輝度エラーを有するサブ画素を事前に決定する工程と、
前記サブ画素に適用する訂正信号を決定する工程と、
前記訂正信号を前記サブ画素の極性を有する画像データに加える工程と、
を備え、
前記極性信号は、4列毎に極性を反転させる1×2ドット反転方式で極性を反転させて前記パネルを駆動することを特徴とする方法。 - 前記サブ画素を事前に決定する工程は、前記サブ画素によって示されるエラーをテスト信号によって測定する工程を更に備えることを特徴とする請求項6または7に記載の方法。
- 前記訂正信号を事前に決定する工程は、前記訂正信号を経験的にテストし、前記訂正信号が前記エラーを実質的に訂正するかどうかを検査する工程を更に備えることを特徴とする請求項6または7に記載の方法。
- 実質的に一貫する輝度エラーを有する前記サブ画素は、青のサブ画素であることを特徴とする請求項6または7に記載の方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US10/456,839 | 2003-06-06 | ||
US10/456,839 US20040246280A1 (en) | 2003-06-06 | 2003-06-06 | Image degradation correction in novel liquid crystal displays |
US10/696,236 | 2003-10-28 | ||
US10/696,236 US8436799B2 (en) | 2003-06-06 | 2003-10-28 | Image degradation correction in novel liquid crystal displays with split blue subpixels |
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JP2006515263A Division JP4718454B2 (ja) | 2003-06-06 | 2004-06-04 | 分割された青いサブ画素を有する新規な液晶ディスプレイの画像劣化修正 |
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JP2011154373A JP2011154373A (ja) | 2011-08-11 |
JP2011154373A5 JP2011154373A5 (ja) | 2012-04-05 |
JP5362755B2 true JP5362755B2 (ja) | 2013-12-11 |
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JP2006515263A Expired - Lifetime JP4718454B2 (ja) | 2003-06-06 | 2004-06-04 | 分割された青いサブ画素を有する新規な液晶ディスプレイの画像劣化修正 |
JP2011034431A Expired - Lifetime JP5362755B2 (ja) | 2003-06-06 | 2011-02-21 | 液晶ディスプレイ及び画像の輝度減少又は輝度増加を訂正する方法 |
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US (2) | US20040246280A1 (ja) |
EP (1) | EP2267693B1 (ja) |
JP (2) | JP4718454B2 (ja) |
CN (1) | CN100583218C (ja) |
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-
2003
- 2003-06-06 US US10/456,839 patent/US20040246280A1/en not_active Abandoned
- 2003-10-28 US US10/696,236 patent/US8436799B2/en not_active Expired - Lifetime
-
2004
- 2004-06-04 JP JP2006515263A patent/JP4718454B2/ja not_active Expired - Lifetime
- 2004-06-04 EP EP10185588.0A patent/EP2267693B1/en not_active Expired - Lifetime
- 2004-06-04 CN CN200480015713A patent/CN100583218C/zh not_active Expired - Lifetime
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2011
- 2011-02-21 JP JP2011034431A patent/JP5362755B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2006527399A (ja) | 2006-11-30 |
US20050083277A1 (en) | 2005-04-21 |
CN100583218C (zh) | 2010-01-20 |
CN1802686A (zh) | 2006-07-12 |
EP2267693A2 (en) | 2010-12-29 |
EP2267693B1 (en) | 2015-01-21 |
US8436799B2 (en) | 2013-05-07 |
JP4718454B2 (ja) | 2011-07-06 |
JP2011154373A (ja) | 2011-08-11 |
US20040246280A1 (en) | 2004-12-09 |
EP2267693A3 (en) | 2011-05-25 |
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