JP2007018876A - 有機el表示装置の製造方法 - Google Patents
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- JP2007018876A JP2007018876A JP2005199285A JP2005199285A JP2007018876A JP 2007018876 A JP2007018876 A JP 2007018876A JP 2005199285 A JP2005199285 A JP 2005199285A JP 2005199285 A JP2005199285 A JP 2005199285A JP 2007018876 A JP2007018876 A JP 2007018876A
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- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
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- 238000004364 calculation method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
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- 238000000605 extraction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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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
- G09G3/22—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
- G09G3/30—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 electroluminescent panels
- G09G3/32—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 electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—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 electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
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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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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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
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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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
- G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
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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
- G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
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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
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
- G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
- G09G5/06—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed using colour palettes, e.g. look-up tables
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
【解決手段】白表示した有機ELパネル100をディジタルカメラ104によって撮影する。撮影画像について、コンピュータ106が画像処理を行い、ムラのあるエリアを検出する。そして、このエリア内の画素について各画素のV−Iカーブを測定することにより必要な補正値を演算算出する。そして、この補正値をメモリに記憶しておき、有機ELパネル100への入力信号を補正する。
【選択図】図5
Description
i)ムラのあるエリアの抽出
図5に示すように、有機ELパネル100を暗室内に配置し、黒背景とする。有機ELパネル100には、一面フラットな白信号を発生するパネル駆動装置102を接続し、ここから画像信号を有機ELパネル100に供給する。そして、白表示で黒背景の有機ELパネル100の画像をディジタルカメラ104によって、撮影する。この例では、2000×1500画素のディジタルカメラを使用する。
i)図10に示すように、ムラを含むと判定されたエリアを中心として、左右上下方向に広げた15×9画素の矩形のエリアを考える。このエリアの四隅の、図に示す4画素を同時に、2つ以上の入力電圧(この例では図11の3点Va1,Va2,Va3)で点灯し、各入力電圧に於けるCV電流を測定する。各画素の平均電流(icv)はこのCV電流を4で割った値となるので、入力電圧対icvの関係をプロットする。この結果により、このエリア周辺の平均的なTFTのV−I特性を予想し、プロットする(図11のa)。なお、入力電圧は、駆動TFTに対するゲートソース間電圧Vgsであり、CV電流は有機EL素子に流れる電流icvであり、輝度に対応する。
なお、ムラのあるエリアを撮影画像を用いて抽出する方法は、スポット状のムラの無い良品パネルを選別するために利用することもできる。
Claims (4)
- 有機EL素子を含む表示画素をマトリクス状に配列して形成した有機EL表示装置の製造方法であって、
表示エリアの画像を撮像装置で撮影して、表示ムラが存在するエリアを特定し、
特定されたエリアにおける表示画素の有機EL素子を選択的に発光させて、その駆動電流を検出し、
検出した駆動電流に基づいて、補正の必要な画素の位置とその補正データを算出し、
得られた補正の必要な画素の位置とその補正データをメモリに記憶させることを特徴とする有機EL表示装置の製造方法。 - 請求項1に記載の方法であって、
撮影した表示エリアの画像を予め所定の大きさに分割したブロックにおいて、ブロック内の各データとブロック内の全データの平均値とを比較することにより、表示ムラが存在するエリアを検出することを特徴とする有機EL表示装置の製造方法。 - 請求項2に記載の方法において、
各ブロック毎に周波数領域への変換を行い、特定の周波数成分を除去し、逆変換してから画像データの比較を行うことを特徴とする有機EL表示装置の製造方法。 - 請求項3に記載の方法であって、
各ブロックが他のブロックと重なっていることを特徴とする有機EL表示装置の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005199285A JP5010814B2 (ja) | 2005-07-07 | 2005-07-07 | 有機el表示装置の製造方法 |
US11/424,245 US8330678B2 (en) | 2005-07-07 | 2006-06-15 | Method of correcting nonuniformity of pixels in an OLED |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005199285A JP5010814B2 (ja) | 2005-07-07 | 2005-07-07 | 有機el表示装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2007018876A true JP2007018876A (ja) | 2007-01-25 |
JP5010814B2 JP5010814B2 (ja) | 2012-08-29 |
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JP2005199285A Active JP5010814B2 (ja) | 2005-07-07 | 2005-07-07 | 有機el表示装置の製造方法 |
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US (1) | US8330678B2 (ja) |
JP (1) | JP5010814B2 (ja) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009193037A (ja) * | 2007-03-29 | 2009-08-27 | Toshiba Mobile Display Co Ltd | El表示装置 |
WO2011118123A1 (ja) * | 2010-03-25 | 2011-09-29 | パナソニック株式会社 | 有機el表示装置及びその製造方法 |
WO2011118124A1 (ja) * | 2010-03-25 | 2011-09-29 | パナソニック株式会社 | 有機el表示装置及びその製造方法 |
WO2011125112A1 (ja) * | 2010-04-05 | 2011-10-13 | パナソニック株式会社 | 有機el表示装置の製造方法及び有機el表示装置 |
WO2011125109A1 (ja) * | 2010-04-05 | 2011-10-13 | パナソニック株式会社 | 有機el表示装置の表示方法および有機el表示装置 |
WO2011125113A1 (ja) * | 2010-04-05 | 2011-10-13 | パナソニック株式会社 | 有機el表示装置および有機el表示装置の製造方法 |
WO2011125108A1 (ja) * | 2010-04-05 | 2011-10-13 | パナソニック株式会社 | 有機el表示装置の製造方法及び有機el表示装置 |
WO2011138914A1 (ja) * | 2010-05-07 | 2011-11-10 | コニカミノルタホールディングス株式会社 | 発光デバイス検査装置、および発光デバイス検査方法 |
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