JP6232593B2 - 表示装置の製造方法 - Google Patents
表示装置の製造方法 Download PDFInfo
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- JP6232593B2 JP6232593B2 JP2016504871A JP2016504871A JP6232593B2 JP 6232593 B2 JP6232593 B2 JP 6232593B2 JP 2016504871 A JP2016504871 A JP 2016504871A JP 2016504871 A JP2016504871 A JP 2016504871A JP 6232593 B2 JP6232593 B2 JP 6232593B2
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- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
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- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/2621—Circuits therefor for testing field effect transistors, i.e. FET's
-
- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/27—Testing of devices without physical removal from the circuit of which they form part, e.g. compensating for effects surrounding elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/44—Testing lamps
-
- 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
-
- 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
-
- 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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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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
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
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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
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
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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
-
- 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
- G09G2320/045—Compensation of drifts in the characteristics of light emitting or modulating elements
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
図1は、駆動トランジスタを備える表示装置の一例である、有機EL表示パネルを備えた有機EL表示装置の機能構成を示すブロック図である。
以下、本開示の基礎となる知見について説明する。
そこで、本開示の一実施の形態による駆動トランジスタを備える表示装置の製造方法は、図14にフローチャートで示すような輝度測定工程を、全数、もしくは抜き取りで行うこととする。
上述のように、輝度測定において、その直前までの点灯状態と輝度を測定するタイミングとに影響を受けないようにすることができ、もって、輝度測定の信頼性を向上することができる。具体的には、所定時間放置ステップ(S3)を導入することで、駆動トランジスタの電流回復挙動(つまり閾値電圧シフトの回復挙動)を飽和させた状態とすることができ、その上で輝度測定を行うので、統一性のとれた輝度測定を行うことが可能となり、もって、高い信頼性の表示装置を製造することが可能となる。
215 発光画素
216 有機EL素子
217 駆動トランジスタ
Claims (3)
- 発光画素と、前記発光画素を電流により駆動する駆動トランジスタとを備える表示装置の製造方法であって、
前記表示装置の輝度測定箇所を点灯させる点灯ステップと、
前記点灯ステップの後、前記輝度測定箇所を非点灯状態とする非点灯ステップと、
前記非点灯状態で前記表示装置を所定時間放置する放置ステップと、
前記放置ステップの後、前記輝度測定箇所を再度点灯させる再点灯ステップと、
前記再点灯ステップの開始時に、前記輝度測定箇所の輝度を測定する測定ステップと、を有し、
前記所定時間は、前記輝度測定箇所が点灯状態から前記非点灯状態に変化したときから、前記駆動トランジスタの閾値電圧シフトの回復挙動が飽和するまでの時間以上である
表示装置の製造方法。 - 前記所定時間は、5分以上である
請求項1に記載の表示装置の製造方法。 - 前記表示装置の製造方法は、さらに
前記表示装置が点灯状態から非点灯状態に変化したときから、前記駆動トランジスタの閾値電圧シフトの回復挙動が飽和するまでの時間を計測し、計測した時間よりも長い時間を前記所定時間と決定する決定ステップを有する
請求項1または2に記載の表示装置の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014033752 | 2014-02-25 | ||
JP2014033752 | 2014-02-25 | ||
PCT/JP2014/006436 WO2015128921A1 (ja) | 2014-02-25 | 2014-12-24 | 表示装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2015128921A1 JPWO2015128921A1 (ja) | 2017-03-30 |
JP6232593B2 true JP6232593B2 (ja) | 2017-11-22 |
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JP2016504871A Active JP6232593B2 (ja) | 2014-02-25 | 2014-12-24 | 表示装置の製造方法 |
Country Status (3)
Country | Link |
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US (1) | US9964584B2 (ja) |
JP (1) | JP6232593B2 (ja) |
WO (1) | WO2015128921A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110111712B (zh) * | 2019-05-30 | 2021-12-17 | 合肥鑫晟光电科技有限公司 | 阈值电压漂移检测方法和阈值电压漂移检测装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3578959B2 (ja) * | 2000-02-24 | 2004-10-20 | 松下電器産業株式会社 | テーブルタップおよびテーブルタップを用いた監視システム |
JP2006195030A (ja) | 2005-01-12 | 2006-07-27 | Sony Corp | 自発光装置のエージング方法、製造方法及びエージング装置 |
JP2007085782A (ja) | 2005-09-20 | 2007-04-05 | Agilent Technol Inc | 画素駆動電流測定方法および装置 |
JP2009104104A (ja) | 2007-05-30 | 2009-05-14 | Canon Inc | アクティブマトリックスディスプレイおよびその駆動方法 |
JP2011013123A (ja) | 2009-07-02 | 2011-01-20 | Panasonic Corp | アクティブ型表示パネルの検査方法及び検査装置 |
JP2011221202A (ja) | 2010-04-08 | 2011-11-04 | Sony Corp | 表示装置、電子機器、表示装置の駆動方法 |
JP5760179B2 (ja) * | 2010-04-23 | 2015-08-05 | パナソニックIpマネジメント株式会社 | 検知装置及び検知システム |
US8779729B2 (en) * | 2011-09-09 | 2014-07-15 | Gs Yuasa International Ltd. | Electric storage device monitor |
JP6082953B2 (ja) | 2012-04-16 | 2017-02-22 | 株式会社Joled | 表示装置の製造方法 |
US9702919B2 (en) * | 2014-03-14 | 2017-07-11 | Joled Inc. | Method for manufacturing display panel |
JPWO2015178029A1 (ja) * | 2014-05-23 | 2017-04-20 | 株式会社Joled | 有機el表示パネル及び有機el表示装置 |
JP6685675B2 (ja) * | 2015-09-07 | 2020-04-22 | 株式会社Joled | 有機el素子、それを用いた有機el表示パネル、及び有機el表示パネルの製造方法 |
-
2014
- 2014-12-24 US US15/119,419 patent/US9964584B2/en active Active
- 2014-12-24 JP JP2016504871A patent/JP6232593B2/ja active Active
- 2014-12-24 WO PCT/JP2014/006436 patent/WO2015128921A1/ja active Application Filing
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Publication number | Publication date |
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US20170067956A1 (en) | 2017-03-09 |
JPWO2015128921A1 (ja) | 2017-03-30 |
US9964584B2 (en) | 2018-05-08 |
WO2015128921A1 (ja) | 2015-09-03 |
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