JP2006011454A - 電気光学装置及び電子装置 - Google Patents
電気光学装置及び電子装置 Download PDFInfo
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- JP2006011454A JP2006011454A JP2005186259A JP2005186259A JP2006011454A JP 2006011454 A JP2006011454 A JP 2006011454A JP 2005186259 A JP2005186259 A JP 2005186259A JP 2005186259 A JP2005186259 A JP 2005186259A JP 2006011454 A JP2006011454 A JP 2006011454A
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Images
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Abstract
【解決手段】 画素内に形成されるスイッチング用TFT201はマルチゲート構造になっており、オフ電流値の低減に重点をおいた構造となっている。また、電流制御用TFT202はスイッチング用TFTよりも大きなチャネル幅を有し、電流を流すのに適した構造となっている。さらに、電流制御用TFT202のLDD領域33は、ゲート電極35と一部が重なるように形成され、ホットキャリア注入の防止とオフ電流値の低減に重点をおいた構造となっている。
【選択図】 図1
Description
ので好ましい。
.al,Appl.Phys.,vol.35,pp.L394-396,1996に詳しい。)は620nmの波長に鋭い発光をもち単色性が高い。
R.Forrest, Nature 395 (1998) p.151.)
上記論文に報告されたEL材料(Pt錯体)の分子式を以下に示す。
ys.Lett.,75 (1999) p.4.)(T.Tsutsui, M.-J.Yang, M.Yahiro, K.Nakamura, T.Watanabe, T.tsuji, Y.Fukuda, T.Wakimoto, S.Mayaguchi, Jpn.Appl.Phys., 38 (12B) (1999) L1502.)
上記論文に報告されたEL材料(Ir錯体)の分子式を以下に示す。
Claims (7)
- 第1のTFT、該第1のTFTに電気的に接続されたゲートを有する第2のTFT及び該第2のTFTに電気的に接続されたEL素子を画素に有する電気光学装置において、
前記第1のTFTは、直列に接続された二つ以上のチャネル形成領域を有する活性層を含むことを特徴とする電気光学装置。 - 第1のTFT、該第1のTFTに電気的に接続されたゲートを有する第2のTFT及び該第2のTFTに電気的に接続されたEL素子を画素に有する電気光学装置において、
前記第1のTFTは直列に接続された二つ以上のチャネル形成領域を有する活性層を含み、
前記第2のTFTのチャネル幅は前記第1のTFTのチャネル幅よりも大きいことを特徴とする電気光学装置。 - 第1のTFT、該第1のTFTに電気的に接続されたゲートを有する第2のTFT及び該第2のTFTに電気的に接続されたEL素子を画素に有する電気光学装置において、
少なくとも前記第1のTFTは直列に接続された二つ以上のチャネル形成領域を有する活性層を含み、
前記第2のTFTのチャネル長をL2、チャネル幅をW2とし、前記第1のTFTのチャネル長をL1、チャネル幅をW1とした時、W2/L2≧5×W1/L1の関係式が成り立つことを特徴とする電気光学装置。 - 請求項3において、前記前記第2のTFTのチャネル長(L2)が0.1〜50μm、同チャネル幅(W2)が0.5〜30μmであり、前記第1のTFTのチャネル長(L1)が0.2〜18μm、同チャネル幅(W1)が0.1〜5μmであることを特徴とする電気光学装置。
- 請求項1乃至請求項4のいずれか一において、前記第1のTFTはスイッチング用素子であり、前記第2のTFTは電流制御用素子であることを特徴とする電気光学装置。
- 請求項1乃至請求項4のいずれか一において、前記第1のTFTのLDD領域は、該第1のTFTのゲート電極とゲート絶縁膜を挟んで重ならないように形成され、
前記第2のTFTのLDD領域は、該第2のTFTのゲート電極とゲート絶縁膜を挟んで一部若しくは全部が重なるように形成されていることを特徴とする電気光学装置。 - 請求項1乃至請求項6のいずれか一に記載された電気光学装置を有することを特徴とする電子装置。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007242594A (ja) * | 2006-02-10 | 2007-09-20 | Semiconductor Energy Lab Co Ltd | 半導体装置およびその作製方法 |
| JP2021052187A (ja) * | 2013-06-05 | 2021-04-01 | 株式会社半導体エネルギー研究所 | 表示装置 |
Citations (3)
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|---|---|---|---|---|
| JPH0595115A (ja) * | 1991-10-01 | 1993-04-16 | Nippon Telegr & Teleph Corp <Ntt> | Mosトランジスタの製造方法 |
| JPH0945930A (ja) * | 1995-07-28 | 1997-02-14 | Sony Corp | 薄膜トランジスタ及びその製造方法 |
| JPH10319872A (ja) * | 1997-01-17 | 1998-12-04 | Xerox Corp | アクティブマトリクス有機発光ダイオード表示装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0595115A (ja) * | 1991-10-01 | 1993-04-16 | Nippon Telegr & Teleph Corp <Ntt> | Mosトランジスタの製造方法 |
| JPH0945930A (ja) * | 1995-07-28 | 1997-02-14 | Sony Corp | 薄膜トランジスタ及びその製造方法 |
| JPH10319872A (ja) * | 1997-01-17 | 1998-12-04 | Xerox Corp | アクティブマトリクス有機発光ダイオード表示装置 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007242594A (ja) * | 2006-02-10 | 2007-09-20 | Semiconductor Energy Lab Co Ltd | 半導体装置およびその作製方法 |
| JP2021052187A (ja) * | 2013-06-05 | 2021-04-01 | 株式会社半導体エネルギー研究所 | 表示装置 |
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