JP4753373B2 - 表示装置及び表示装置の駆動方法 - Google Patents
表示装置及び表示装置の駆動方法 Download PDFInfo
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- JP4753373B2 JP4753373B2 JP2006232106A JP2006232106A JP4753373B2 JP 4753373 B2 JP4753373 B2 JP 4753373B2 JP 2006232106 A JP2006232106 A JP 2006232106A JP 2006232106 A JP2006232106 A JP 2006232106A JP 4753373 B2 JP4753373 B2 JP 4753373B2
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- 235000013842 nitrous oxide Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002098 polyfluorene Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 238000003079 width control Methods 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
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Images
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1251—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs comprising TFTs having a different architecture, e.g. top- and bottom gate TFTs
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Description
本実施の形態は、一画素あたりの書き込み時間を短くするために、ビデオ信号を書き込み、EL素子に流す電流を制御するためのトランジスタと、しきい値電圧を取得するためのトランジスタとを設けた表示装置の構成について、図1を参照して説明する。
第1の実施形態において、スイッチング素子として、トランジスタを用いることができる。本実施の形態は、スイッチング素子として、Pチャネル型トランジスタを用いた場合の構成について、図5を参照して説明する。
本実施の形態は、一方のトランジスタへの電流の集中によるトランジスタの特性劣化を防ぐために、しきい値電圧を取得するトランジスタでEL素子に流す電流を制御するための表示装置の構成について、図7を参照して説明する。
第3の実施形態において、スイッチング素子として、トランジスタを用いることができる。本実施の形態では、スイッチング素子として、Pチャネル型トランジスタを用いた場合の構成について、図11を参照して説明する。
本実施の形態は、ビデオ信号を書き込み、EL素子に流す電流を制御するためのトランジスタと、しきい値電圧を取得するためのトランジスタとをNチャネル型トランジスタとするための表示装置の構成について、図13を参照して説明する。
第5の実施形態において、スイッチング素子として、トランジスタを用いることができる。本実施の形態では、スイッチング素子として、Nチャネル型トランジスタを用いた場合の構成について、図17を参照して説明する。
本実施の形態は、一方のトランジスタへの電流の集中によるトランジスタの特性劣化を防ぐために、しきい値電圧を取得するトランジスタでEL素子に流す電流を制御するための表示装置の構成について、図19を参照して説明する。
上記第7の実施形態において、スイッチング素子として、トランジスタを用いることができる。スイッチング素子として、Nチャネル型トランジスタを用いた場合の構成について、図23を参照して説明する。
本実施形態では、第1の実施形態、乃至第8の実施形態で説明した画素を有する表示装置、及び表示装置が有するソースドライバやゲートドライバなどの構成の一例とその動作について説明する。
101 第2のトランジスタ
102 第1のスイッチ
103 第2のスイッチ
104 第3のスイッチ
105 第4のスイッチ
106 第5のスイッチ
107 第1の容量素子
108 第2の容量素子
109 EL素子
110 電源線
111 対向電極
112 ソース信号線
502 第3のトランジスタ
503 第4のトランジスタ
504 第5のトランジスタ
505 第6のトランジスタ
506 第7のトランジスタ
512 第1のゲート信号線
513 第2のゲート信号線
514 第3のゲート信号線
515 第4のゲート信号線
516 第5のゲート信号線
700 第1のトランジスタ
701 第2のトランジスタ
702 第1のスイッチ
703 第2のスイッチ
704 第3のスイッチ
705 第4のスイッチ
706 第5のスイッチ
707 第1の容量素子
708 第2の容量素子
709 EL素子
710 電源線
711 対向電極
712 ソース信号線
1102 第3のトランジスタ
1103 第4のトランジスタ
1104 第5のトランジスタ
1105 第6のトランジスタ
1106 第7のトランジスタ
1112 第1のゲート信号線
1113 第2のゲート信号線
1114 第3のゲート信号線
1115 第4のゲート信号線
1116 第5のゲート信号線
1300 第1のトランジスタ
1301 第2のトランジスタ
1302 第1のスイッチ
1303 第2のスイッチ
1304 第3のスイッチ
1305 第4のスイッチ
1306 第5のスイッチ
1307 第1の容量素子
1308 第2の容量素子
1309 EL素子
1310 電源線
1311 対向電極
1312 ソース信号線
1702 第3のトランジスタ
1703 第4のトランジスタ
1704 第5のトランジスタ
1705 第6のトランジスタ
1706 第7のトランジスタ
1712 第1のゲート信号線
1713 第2のゲート信号線
1714 第3のゲート信号線
1715 第4のゲート信号線
1716 第5のゲート信号線
1900 第1のトランジスタ
1901 第2のトランジスタ
1902 第1のスイッチ
1903 第2のスイッチ
1904 第3のスイッチ
1905 第4のスイッチ
1906 第5のスイッチ
1907 第1の容量素子
1908 第2の容量素子
1909 EL素子
1910 電源線
1911 対向電極
1912 ソース信号線
2302 第3のトランジスタ
2303 第4のトランジスタ
2304 第5のトランジスタ
2305 第6のトランジスタ
2306 第7のトランジスタ
2312 第1のゲート信号線
2313 第2のゲート信号線
2314 第3のゲート信号線
2315 第4のゲート信号線
2316 第5のゲート信号線
9000 ソースドライバ
9001 ゲートドライバ
9002 画素
9003 画素部
9100 シフトレジスタ
9101 スイッチ
9102 第1のラッチ回路
9103 第2のラッチ回路
9104 電流源
9105 第1のラッチ回路制御線
9106 第2のラッチ回路制御線
9200 シフトレジスタ
9201 第1のラッチ回路
9202 第2のラッチ回路
9203 DAC
9204 トランジスタ
9205 基準電圧
9206 ビデオ信号線
9207 第1のラッチ回路制御線
9208 第2のラッチ回路制御線
9300 シフトレジスタ
9301 第1のラッチ回路
9302 第2のラッチ回路
9303 第1のスイッチ
9304 第2のスイッチ
9305 第3のスイッチ
9306 第1の電流源
9307 第2の電流源
9308 第3の電流源
9309 ビデオ信号線
9310 第1のラッチ回路制御線
9311 第2のラッチ回路制御線
2400 基板
2401 下地膜
2402 第1の半導体層
2403 第1の絶縁膜
2404 ゲート電極
2405 第2の絶縁膜
2406 第1の電極
2407 第2の電極
2408 第3の絶縁膜
2409 発光層
2410 トランジスタ
2411 容量素子
2412 第2の半導体層
2414 第4の電極
2415 発光素子
2416 第5の電極
2417 第4の電極
2418 第4の絶縁膜
2801 基板
2802 下地膜
2803 画素電極
2804 第1の電極
2805 第1の配線
2806 第2の配線
2807 第1のN型半導体層
2808 第2のN型半導体層
2809 半導体層
2810 ゲート絶縁膜
2811 絶縁膜
2812 ゲート電極
2813 第2の電極
2814 層間絶縁膜
2815 有機化合物を含む層
2816 対向電極
2817 発光素子
2818 駆動トランジスタ
2819 容量素子
2820 第1の電極
2901 基板
2903 ゲート電極
2904 第1の電極
2905 ゲート絶縁膜
2906 第1の半導体層
2907 第2の半導体層
2908 第1のN型半導体層
2909 第2のN型半導体層
2910 第3のN型半導体層
2911 第1の配線
2912 第2の配線
2913 導電層
2914 画素電極
2915 絶縁層
2916 有機化合物を含む層
2917 対向電極
2918 発光素子
2919 駆動トランジスタ
2920 容量素子
2921 第2の電極
3001 絶縁層
4601 基板
4602 第1の絶縁膜
4603a 第1の半導体膜
4603b 第2の半導体膜
4604 ゲート絶縁膜
4605 ゲート電極
4606 第2の絶縁膜
4607 第3の絶縁膜
4608 導電膜
4610a Nチャネル型トランジスタ
4610b Pチャネル型トランジスタ
4621a 第1の絶縁膜
4621b 第2の絶縁膜
4623 絶縁膜
4624 絶縁膜
4625a 第1のレジスト
4625b 第2のレジスト
4626 絶縁膜
4627a 第1の絶縁膜
4627b 第2の絶縁膜
4651a 第1のチャネル領域の端部
4651b 第2のチャネル領域の端部
4652a 第1のチャネル領域の端部
4652b 第2のチャネル領域の端部
5610 第1の半導体層
5611 第2の半導体層
5630 マスクパターン
5712 第1のゲート配線
5713 第2のゲート配線
5714 第3のゲート配線
5731 マスクパターン
5815 第1の配線
5816 第2の配線
5819 第3の配線
5820 第4の配線
5821 第1のNチャネル型トランジスタ
5822 第2のNチャネル型トランジスタ
5823 第3のNチャネル型トランジスタ
5824 第4のNチャネル型トランジスタ
5825 第1のPチャネル型トランジスタ
5826 第2のPチャネル型トランジスタ
5827 第1のインバータ
5828 第2のインバータ
5832 マスクパターン
2501 基板
2502 画素部
2506 シール材
2507 シーリング材
2508 密閉空間
2509 吸湿材
2510 カバー材
2511 入力端子部
2512 フレキシブルプリントサーキット(FPC)
2520 カラーフィルタ
2521 対向基板
2522 密閉空間
2523 保護膜
2524 シーリング材
2600 パネル
2601 画素部
2602 ソースドライバ
2603 ゲートドライバ
2604 回路基板
2605 コントローラ
2606 信号分割回路
2711 本体
2712 筐体
2713 表示部
2714 キーボード
2715 外部接続ポート
2716 ポインティングマウス
2721 本体
2722 筐体
2723 第1の表示部
2724 第2の表示部
2725 記録媒体読み込み部
2726 操作キー
2727 スピーカー部
2731 本体
2732 音声出力部
2733 音声入力部
2734 表示部
2735 操作スイッチ
2736 アンテナ
2741 本体
2742 表示部
2743 筐体
2744 外部接続ポート
2745 リモコン受信部
2746 受像部
2747 バッテリー
2748 音声入力部
2749 操作キー
9701 電車車両本体
9702 表示パネル
9703 第1の表示パネル
9704 第2の表示パネル
9901 自動車の車体
9902 表示パネル
10101 飛行機車体
10102 表示パネル
10103 ヒンジ部
9801 電柱
9802 表示パネル
9803 移動体
10001 ユニットバス
10002 表示パネル
2010 筐体
2011 表示部
2012 リモコン装置
2013 スピーカー部
Claims (8)
- 第1端子が電源線に接続され、第2端子が第1のスイッチング素子を介してビデオ信号を入力する信号線に接続され、前記第2端子が第2のスイッチング素子を介してゲートに接続される第1のトランジスタと、
第1端子が前記電源線に接続され、第2端子が第3のスイッチング素子を介してゲートに接続される第2のトランジスタと、
一方の電極が前記電源線に接続され、他方の電極が前記第1のトランジスタのゲートに接続される第1の容量素子と、
一方の電極が前記電源線に接続され、他方の電極が前記第2のトランジスタのゲートと、第4のスイッチング素子を介して前記第1の容量素子の他方の電極に接続される第2の容量素子と、
一方の電極が、第5のスイッチング素子を介して前記第1のトランジスタの前記第2端子に接続される発光素子と、
を有する画素を備えたことを特徴とする表示装置。 - 第1端子が電源線に接続され、第2端子が第1のスイッチング素子を介してゲートに接続される第1のトランジスタと、
第1端子が前記電源線に接続され、第2端子が第2のスイッチング素子を介してビデオ信号を入力する信号線に接続され、前記第2端子が第3のスイッチング素子を介してゲートに接続される第2のトランジスタと、
一方の電極が前記電源線に接続され、他方の電極が前記第1のトランジスタのゲートに接続される第1の容量素子と、
一方の電極が前記電源線に接続され、他方の電極が前記第2のトランジスタのゲートと、第4のスイッチング素子を介して前記第1の容量素子の他方の電極に接続される第2の容量素子と、
一方の電極が第5のスイッチング素子を介して前記第1のトランジスタの前記第2端子に接続される発光素子と、
を有する画素を備えたことを特徴とする表示装置。 - 請求項1乃至請求項2のいずれか1項において、前記第1のトランジスタ及び前記第2のトランジスタはPチャネル型トランジスタまたはNチャネル型トランジスタであることを特徴とする表示装置。
- 請求項1乃至請求項3のいずれか一項において、前記第1のトランジスタのチャネル長は、前記第2のトランジスタのチャネル長より長いことを特徴とする表示装置。
- 請求項1乃至請求項4のいずれか一項において、前記第1のトランジスタのチャネル幅は、前記第2のトランジスタのチャネル幅より広いことを特徴とする表示装置。
- 請求項1乃至請求項5のいずれか一項において、前記第1のトランジスタが前記発光素子に直列に接続され、前記第1のトランジスタに流れる電流を制御して、前記発光素子の発光輝度を制御することを特徴とする表示装置。
- 第1端子が電源線に接続され、第2端子が第1のスイッチング素子を介してビデオ信号を入力する信号線に接続され、前記第2端子が第2のスイッチング素子を介してゲートに接続される第1のトランジスタと、
第1端子が前記電源線に接続され、第2端子が第3のスイッチング素子を介してゲートに接続される第2のトランジスタと、
一方の電極が前記電源線に接続され、他方の電極が前記第1のトランジスタのゲートに接続される第1の容量素子と、
一方の電極が前記電源線に接続され、他方の電極が前記第2のトランジスタのゲートと、第4のスイッチング素子を介して前記第1の容量素子の他方の電極に接続される第2の容量素子と、
一方の電極が、第5のスイッチング素子を介して前記第1のトランジスタの前記第2端子に接続される発光素子と、
を有する画素を備えた表示装置の駆動方法であって、
前記第1のトランジスタのゲートとソース間の電圧が前記第1の容量素子に保持される動作と、前記第2のトランジスタのゲートとソース間の電圧が前記第2の容量素子に保持される動作を同じ期間で行い、その後前記第1の容量素子と前記第2の容量素子を、前記第4のスイッチング素子をオンすることにより容量結合する動作を行うことを特徴とする表示装置の駆動方法。 - 第1端子が電源線に接続され、第2端子が第1のスイッチング素子を介してゲートに接続される第1のトランジスタと、
第1端子が前記電源線に接続され、第2端子が第2のスイッチング素子を介してビデオ信号を入力する信号線と、第3のスイッチング素子を介してゲートに接続される第2のトランジスタと、
一方の電極が前記電源線に接続され、他方の電極が前記第1のトランジスタのゲートに接続される第1の容量素子と、
一方の電極が前記電源線に接続され、他方の電極が前記第2のトランジスタのゲートと、第4のスイッチング素子を介して前記第1の容量素子の他方の電極に接続される第2の容量素子と、
一方の電極が、第5のスイッチング素子を介して前記第1のトランジスタの前記第2端子に接続される発光素子と、
を有する画素を備えた表示装置の駆動方法であって、
前記第1のトランジスタのゲートとソースとの間の電圧が前記第1の容量素子に保持される動作と、前記第2のトランジスタのゲートとソースとの間の電圧が前記第2の容量素子に保持される動作を同時に行い、その後前記第1の容量素子と前記第2の容量素子を、前記第4のスイッチング素子をオンすることにより容量結合する動作を行うことを特徴とする表示装置の駆動方法。
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KR101834012B1 (ko) | 2011-04-13 | 2018-03-02 | 엘지디스플레이 주식회사 | 유기발광다이오드 표시장치 |
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US9972647B2 (en) | 2018-05-15 |
CN102779473A (zh) | 2012-11-14 |
US20140299875A1 (en) | 2014-10-09 |
KR20070032252A (ko) | 2007-03-21 |
JP2007108689A (ja) | 2007-04-26 |
CN1932943A (zh) | 2007-03-21 |
CN1932943B (zh) | 2012-08-22 |
US8749453B2 (en) | 2014-06-10 |
KR101269934B1 (ko) | 2013-05-31 |
CN102779473B (zh) | 2015-10-07 |
US20070064469A1 (en) | 2007-03-22 |
US7995009B2 (en) | 2011-08-09 |
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