JP2008158238A - 有機el表示装置 - Google Patents
有機el表示装置 Download PDFInfo
- Publication number
- JP2008158238A JP2008158238A JP2006346789A JP2006346789A JP2008158238A JP 2008158238 A JP2008158238 A JP 2008158238A JP 2006346789 A JP2006346789 A JP 2006346789A JP 2006346789 A JP2006346789 A JP 2006346789A JP 2008158238 A JP2008158238 A JP 2008158238A
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- organic
- display device
- driving
- transistor
- selection transistor
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- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005401 electroluminescence Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 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]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of El Displays (AREA)
Abstract
【解決手段】データ線12とゲート線11とを交差させて定義される画素ごとに設けられた有機EL素子24と、有機EL素子24と1対1に設けられ、有機EL素子24を駆動する駆動用トランジスタ22と、データ線を通じたデータ信号を選択、保持し、駆動用トランジスタ24を駆動する選択用トランジスタ21とを含み、2段トランジスタ構造を備えた有機EL表示装置において、選択用トランジスタ21は、1個の選択用トランジスタ21で複数個の駆動用トランジスタ22a〜22cを並列駆動するように構成される。
【選択図】図1
Description
従来の有機EL表示装置では、図4に示したように、第1のTFT21および第2のTFT22を、OLED素子24に対応して画素ごとにそれぞれ設けている。この結果、配線数が多くなるため、欠陥による断線等によるパネル歩留まり低下の一因となっていた。さらに、配線数が多いことに伴って、開口率も減るというデメリットもあった。
図1は、本発明の実施の形態1における有機EL表示装置の回路構成図である。この有機EL表示装置は、ゲート線11、データ線12、電源線13a〜13c、第1のTFT21、第2のTFT22a〜22c、蓄積容量23、およびOLED素子24a〜24cで構成されている。この図1の構成は、赤、緑、青の3画素分をまとめて示しており、各画素に個別の構成要素は、添字としてa、b、cをそれぞれ付している。
Claims (3)
- データ線とゲート線とを交差させて定義される画素ごとに設けられた有機EL素子と、
前記有機EL素子と1対1に設けられ、前記有機EL素子を駆動する駆動用トランジスタと、
前記データ線を通じたデータ信号を選択、保持し、前記駆動用トランジスタを駆動する選択用トランジスタと
を含み、2段トランジスタ構造を備えた有機EL表示装置において、
前記選択用トランジスタは、1個の選択用トランジスタで複数個の駆動用トランジスタを並列駆動するように構成されたことを特徴とする有機EL表示装置。 - 請求項1に記載の有機EL表示装置において、
前記1個の選択用トランジスタで駆動される前記複数個の駆動用トランジスタのそれぞれは、順次切り替わる個別の電源線を介して電源が供給され、対応する有機EL素子を時分割駆動することを特徴とする有機EL表示装置。 - 請求項1または2に記載の有機EL表示装置において、
前記1個の選択用トランジスタで駆動される前記複数個の駆動用トランジスタは、積層構造を有することを特徴とする有機EL表示装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006346789A JP5134242B2 (ja) | 2006-12-22 | 2006-12-22 | 有機el表示装置 |
KR1020070039294A KR20080059010A (ko) | 2006-12-22 | 2007-04-23 | 유기 el 표시장치 및 그의 구동방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006346789A JP5134242B2 (ja) | 2006-12-22 | 2006-12-22 | 有機el表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008158238A true JP2008158238A (ja) | 2008-07-10 |
JP5134242B2 JP5134242B2 (ja) | 2013-01-30 |
Family
ID=39659207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006346789A Active JP5134242B2 (ja) | 2006-12-22 | 2006-12-22 | 有機el表示装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5134242B2 (ja) |
KR (1) | KR20080059010A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012088587A (ja) * | 2010-10-21 | 2012-05-10 | Seiko Epson Corp | 画素回路、電気光学装置、および電子機器。 |
WO2018167835A1 (ja) * | 2017-03-14 | 2018-09-20 | シャープ株式会社 | 有機エレクトロルミネッセンス表示装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101661540B1 (ko) * | 2009-12-11 | 2016-10-04 | 엘지디스플레이 주식회사 | 액정표시장치 및 그 구동방법 |
CN104157239A (zh) * | 2014-07-21 | 2014-11-19 | 京东方科技集团股份有限公司 | 像素电路、像素电路的驱动方法和显示装置 |
CN104599631B (zh) * | 2014-12-16 | 2017-07-11 | 昆山工研院新型平板显示技术中心有限公司 | 像素电路及其驱动方法和有源矩阵有机发光显示器 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02118593A (ja) * | 1989-07-22 | 1990-05-02 | Semiconductor Energy Lab Co Ltd | 半導体表示装置 |
JPH09138659A (ja) * | 1995-08-21 | 1997-05-27 | Motorola Inc | アクティブ駆動型ledマトリクス |
WO2004049286A1 (ja) * | 2002-11-25 | 2004-06-10 | Toshiba Matsushita Display Technology Co., Ltd. | 有機el表示パネル |
JP2005148751A (ja) * | 2003-11-14 | 2005-06-09 | Samsung Sdi Co Ltd | 表示装置のピクセル回路,表示装置,及びその駆動方法 |
JP2005148750A (ja) * | 2003-11-14 | 2005-06-09 | Samsung Sdi Co Ltd | 表示装置のピクセル回路,表示装置,及びその駆動方法 |
JP2007108247A (ja) * | 2005-10-11 | 2007-04-26 | Sony Corp | 表示装置及びその駆動方法 |
-
2006
- 2006-12-22 JP JP2006346789A patent/JP5134242B2/ja active Active
-
2007
- 2007-04-23 KR KR1020070039294A patent/KR20080059010A/ko not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02118593A (ja) * | 1989-07-22 | 1990-05-02 | Semiconductor Energy Lab Co Ltd | 半導体表示装置 |
JPH09138659A (ja) * | 1995-08-21 | 1997-05-27 | Motorola Inc | アクティブ駆動型ledマトリクス |
WO2004049286A1 (ja) * | 2002-11-25 | 2004-06-10 | Toshiba Matsushita Display Technology Co., Ltd. | 有機el表示パネル |
JP2005148751A (ja) * | 2003-11-14 | 2005-06-09 | Samsung Sdi Co Ltd | 表示装置のピクセル回路,表示装置,及びその駆動方法 |
JP2005148750A (ja) * | 2003-11-14 | 2005-06-09 | Samsung Sdi Co Ltd | 表示装置のピクセル回路,表示装置,及びその駆動方法 |
JP2007108247A (ja) * | 2005-10-11 | 2007-04-26 | Sony Corp | 表示装置及びその駆動方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012088587A (ja) * | 2010-10-21 | 2012-05-10 | Seiko Epson Corp | 画素回路、電気光学装置、および電子機器。 |
WO2018167835A1 (ja) * | 2017-03-14 | 2018-09-20 | シャープ株式会社 | 有機エレクトロルミネッセンス表示装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20080059010A (ko) | 2008-06-26 |
JP5134242B2 (ja) | 2013-01-30 |
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