JPWO2011158303A1 - 有機el表示装置 - Google Patents
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/124—Insulating layers formed between TFT elements and OLED 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
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/60—Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/824—Cathodes combined with auxiliary electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/805—Electrodes
- H10K59/8052—Cathodes
- H10K59/80522—Cathodes combined with auxiliary electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/917—Electroluminescent
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
11、11a、11b 電源線
12 走査線
13 データ線
14 補助配線
15 スイッチング用薄膜トランジスタ
16 電流制御用薄膜トランジスタ
17 有機EL素子
17a 上部電極
17b 有機発光層
17c 下部電極
18 基準電源
19 コンデンサ
21 上部電極層
22 発光層
23 下部電極層
23a 第1TFTコンタクト
23b 第2TFTコンタクト
24 隔壁部
25 層間絶縁膜
26 TFT層
26a TFT回路
26b 配線
30 TV
大型化及び高精細化を可能にするため、制御線の時定数の増大を抑制するように電源線の配置が工夫された有機EL表示装置を提供することを目的とする。
課題を解決するための手段
[0006]
上記目的を達成するために、本発明に係る有機EL表示装置の一形態は、基板上に、複数の走査線と、複数のデータ線と、該走査線と該データ線との交差部近傍に配置された発光画素と、該発光画素に電流を供給する電源線とを具備する有機EL表示装置であって、前記発光画素の各々は、前記走査線を介して走査信号がゲートに供給されるスイッチング用薄膜トランジスタと、前記データ線から前記スイッチング用薄膜トランジスタを介して供給されるデータ電圧に応じてゲートの電圧が決定され、ゲートに印加される電圧に応じて前記発光画素に流れる電流を制御する電流制御用薄膜トランジスタと、下部電極、有機発光層及び上部電極を含み、前記電源線から前記電流制御用薄膜トランジスタを介して電流が供給される有機EL素子とを有し、前記複数の走査線及び前記複数のデータ線が配置された層上に平坦化層が設けられ、前記平坦化層上に、前記電源線、前記下部電極、及び前記上部電極と電気的に接続された補助配線が配置され、前記電源線は、前記発光画素が複数配置された領域内において、前記平坦化層を挟んで前記走査線と交わる点、及び前記平坦化層を挟んで前記データ線と交わる点を有する。
発明の効果
[0007]
本発明により、電源線と制御線とで形成される寄生容量が低減され、画面の大型化及び高精細化が可能な有機EL表示装置が実現される。
[0008]
よって、画面の大型化及び高精細化が望まれるTVやコンピュータ用ディスプレイ等への適用として、本発明の実用的価値は極めて高い。
図面の簡単な説明
[0009]
[図1]図1は、本発明の実施の形態における有機EL表示装置が備える個々の発光画素の回路図である。
[図2]図2は、同有機EL表示装置の断面を示す概略図である。
[図3]図3(a)及び(b)は、同有機EL表示装置の下部電極層のレイアウト図である。
[図4]図4(a)は、同有機EL表示装置の下部電極層及び発光層(隔壁部)
11、11a、11b 電源線
12 走査線
13 データ線
14 補助配線
15 スイッチング用薄膜トランジスタ
16 電流制御用薄膜トランジスタ
17 有機EL素子
17a 上部電極
17b 有機発光層
17c 下部電極
18 基準電源
19 コンデンサ
21 上部電極層
22 発光層
23 下部電極層
23a 第1TFTコンタクト
23b 第2TFTコンタクト
24 隔壁部
25 層間絶縁膜
26 TFT層
26a TFT回路
26b 配線
30 TV
Claims (9)
- 基板上に、複数の走査線と、複数のデータ線と、該走査線と該データ線との交差部近傍に配置された発光画素と、該発光画素に電流を供給する電源線とを具備する有機エレクトロルミネッセンス(EL)表示装置であって、
前記発光画素の各々は、
前記走査線を介して走査信号がゲートに供給されるスイッチング用薄膜トランジスタと、
前記データ線から前記スイッチング用薄膜トランジスタを介して供給されるデータ電圧に応じてゲートの電圧が決定され、ゲートに印加される電圧に応じて前記発光画素に流れる電流を制御する電流制御用薄膜トランジスタと、
下部電極、有機発光層及び上部電極を含み、前記電源線から前記電流制御用薄膜トランジスタを介して電流が供給される有機EL素子とを有し、
前記複数の走査線が配置された層上に層間絶縁膜が設けられ、
前記層間絶縁膜上に前記電源線が配置されている、
有機EL表示装置。 - 前記下部電極は、前記層間絶縁膜上に配置され、
前記電源線は、前記下部電極と同一層に構成されている、
請求項1に記載の有機EL表示装置。 - さらに、前記層間絶縁膜上に配置された補助配線を有し、
前記上部電極は、前記発光画素の各々に共通して接続され、前記補助配線と電気的に接続されており、
前記電源線は、前記補助配線と同一層に構成されている、
請求項1または2に記載の有機EL表示装置。 - 前記電源線と、前記補助配線と、前記下部電極とは同一層に構成されている、
請求項3に記載の有機EL表示装置。 - 前記層間絶縁膜が有機物で形成されている、
請求項1に記載の有機EL表示装置。 - 前記層間絶縁膜の比誘電率を前記層間絶縁膜の膜厚で除した値が、4×10−6m−1よりも小さい、
請求項5に記載の有機EL表示装置。 - 前記電源線は、前記複数の走査線と直交する方向に配置されている、
請求項1に記載の有機EL表示装置。 - 前記電源線上に、前記発光画素の各々の有機発光層を離隔する隔壁部が設けられている、
請求項7に記載の有機EL表示装置。 - 前記補助配線は、前記電源線と並行となるように配置されている、
請求項3に記載の有機EL表示装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/004083 WO2011158303A1 (ja) | 2010-06-18 | 2010-06-18 | 有機el表示装置 |
Publications (2)
Publication Number | Publication Date |
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JPWO2011158303A1 true JPWO2011158303A1 (ja) | 2013-08-15 |
JP5627682B2 JP5627682B2 (ja) | 2014-11-19 |
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JP2012520169A Active JP5627682B2 (ja) | 2010-06-18 | 2010-06-18 | 有機el表示装置 |
Country Status (5)
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US (1) | US8823612B2 (ja) |
JP (1) | JP5627682B2 (ja) |
KR (1) | KR101663858B1 (ja) |
CN (1) | CN102972094B (ja) |
WO (1) | WO2011158303A1 (ja) |
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KR102169015B1 (ko) * | 2013-12-23 | 2020-10-23 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치용 원장 기판 및 유기 발광 표시 장치 |
CN110476200B (zh) * | 2017-03-29 | 2021-11-16 | 夏普株式会社 | Tft基板、tft基板的制造方法、显示装置 |
US11222589B2 (en) * | 2018-08-10 | 2022-01-11 | Sony Group Corporation | Display apparatus, method of driving display apparatus, and electronic equipment |
CN113383381A (zh) * | 2019-04-04 | 2021-09-10 | 深圳市柔宇科技股份有限公司 | 显示面板和显示装置 |
JP2022154586A (ja) * | 2021-03-30 | 2022-10-13 | 株式会社ジャパンディスプレイ | 表示装置 |
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KR20130038284A (ko) | 2013-04-17 |
CN102972094A (zh) | 2013-03-13 |
US20130100002A1 (en) | 2013-04-25 |
JP5627682B2 (ja) | 2014-11-19 |
WO2011158303A1 (ja) | 2011-12-22 |
KR101663858B1 (ko) | 2016-10-07 |
CN102972094B (zh) | 2015-11-25 |
US8823612B2 (en) | 2014-09-02 |
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