JP4927217B2 - 発光装置 - Google Patents
発光装置 Download PDFInfo
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- JP4927217B2 JP4927217B2 JP2011031697A JP2011031697A JP4927217B2 JP 4927217 B2 JP4927217 B2 JP 4927217B2 JP 2011031697 A JP2011031697 A JP 2011031697A JP 2011031697 A JP2011031697 A JP 2011031697A JP 4927217 B2 JP4927217 B2 JP 4927217B2
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- light
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- 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
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- H10K50/80—Constructional details
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- H10K50/81—Anodes
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- H10K50/81—Anodes
- H10K50/814—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
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- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/828—Transparent cathodes, e.g. comprising thin metal layers
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- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
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- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8428—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H10K59/80—Constructional details
- H10K59/805—Electrodes
- H10K59/8051—Anodes
- H10K59/80516—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
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- H10K59/805—Electrodes
- H10K59/8052—Cathodes
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- H10K2102/3023—Direction of light emission
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- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H10K59/871—Self-supporting sealing arrangements
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Description
を狭める要因となっていた。また、有効発光領域が狭い場合、明るい画像を得るには発光輝度を上げる必要があったが、発光輝度を上げることは有機EL膜の劣化を早める結果となってしまっていた。
スイッチングTFT203はビデオ信号を画素に取り込むためのスイッチとして機能し、電流制御TFT204はEL素子に流れる電流を制御するためのスイッチとして機能する。このとき、スイッチングTFT203のドレインは電流制御TFT204のゲートに電気的に接続されている。
なお、バンク209としては樹脂膜を用いても珪素を含む絶縁膜(代表的には酸化珪素膜)を用いても良い。
216が形成されており、第3の透明電極214および補助電極216は異方導電性膜(金属粒子もしくはカーボン粒子を分散させた樹脂膜)からなる導電体217を介して電気的に接続されている。
結晶質珪素膜303の形成方法としては公知の手段を用いることが可能である。
固体レーザーもしくはエキシマレーザーを用いて非晶質珪素膜をレーザー結晶化させても良いし、非晶質珪素膜を加熱処理(ファーネスアニール)により結晶化させても良い。本実施例ではXeClガスを用いたエキシマレーザーを照射することにより結晶化させる。
こうすることでゲート配線502がゲート電極307を乗り越える部分で断線したとしてもゲート配線502がそこで電気的に断線してしまうことを避けることができる。また、ゲート電極307をコの字型に加工しているのも、確実に両方のゲート電極に電圧が印加されるようにするための冗長設計である。
本実施例ではどちらのTFTもpチャネル型TFTで形成されるが、両方もしくはいずれか一方をnチャネル型TFTとしても良い。
保持容量504は電流制御TFT402のドレインに電気的に接続された半導体層505、ゲート絶縁膜306及び容量配線506で形成される。即ち、半導体層505と容量配線506はゲート絶縁膜306により絶縁され、コンデンサ(保持容量)を形成している。
であり、本体2301、記録媒体(CD、LDまたはDVD等)2302、操作スイッチ2303、表示部(a)2304、表示部(b)2305を含む。表示部(a)は主として画像情報を表示し、表示部(b)は主として文字情報を表示するが、本発明の発光装置はこれら表示部(a)、(b)に用いることができる。なお、記録媒体を備えた画像再生装置には、CD再生装置、ゲーム機器なども含まれうる。
Claims (1)
- 第1の基板上の第1の電極と、
前記第1の電極上のEL層と、
前記EL層上の第2の電極と、
前記第2の電極上の導電体と、
前記導電体上の第3の電極と、
前記第3の電極上の第2の基板と、を有し、
前記第2の電極及び前記第3の電極は透光性を有し、
前記第2の電極と前記第3の電極とは前記導電体を介して電気的に接続され、
前記導電体は、前記第1の電極、前記EL層、及び前記第2の電極のみからなる積層構造体と重なる位置に配置されており、
前記第3の電極は前記第2の基板側に形成されたものであり、
前記導電体は、前記第2の電極上の全面に分散されて設けられていることを特徴とする発光装置。
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US20070018572A1 (en) | 2007-01-25 |
US20010043046A1 (en) | 2001-11-22 |
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