JP5607882B2 - ディスプレイの駆動方法、キャリアー、及びディスプレイを駆動するためのドライバー - Google Patents
ディスプレイの駆動方法、キャリアー、及びディスプレイを駆動するためのドライバー Download PDFInfo
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Description
有機金属LEDを含む有機発光ダイオードは、ポリマー、低分子化合物およびデンドリマーを含む材料を使用して、採用される材料に応じた色の範囲で製造することができる。ポリマー系有機LEDの例は、WO90/13148、WO95/06400およびWO99/48160に記載されており、デンドリマー系材料の例は、WO99/21935およびWO02/067343に記載されており、およびいわゆる低分子系装置の例はUS4,539,507に記載されている。典型的なOLED装置は、有機材料の2層を有し、そのうち1層は、発光ポリマー(LEP)、オリゴマーまたは発光低分子量材料のような発光材料の層であり、他の1層はポリチオフェン誘導体またはポリアニリン誘導体のような正孔輸送材料の層である。
マルチラインアドレス(MLA)法の概要を説明することは本発明の実施態様の理解に役立つ。
1つの変化し得るスキャン時間駆動手法においては、ラインまたはサブフレームスキャン時間は色に関係なくサブ画素の発光ピークに比例する。これは最悪の場合の駆動レベルのピークを減らし、これによってディスプレイの寿命を延ばす。しかしながら、この手法の発展において、ラインまたはサブフレームスキャン時間は、最も(劣化した)敏感な色画素要素の発光によって決められ、または最も(劣化した)敏感な色画素要素の発光に比例し、この目的は、最悪の場合のサブ画素の劣化を最小にすることである。実施態様において、ラインまたはサブフレームスキャン時間が次の式で決められるように、各サブ画素のために異なる色の重み付け因子が導入され得る。
102 基板
104 アノード
106 正孔輸送層
108 電子発光層
110 カソード
111 金属缶
112 バンク
113 接着剤
118 電池
150 OLEDディスプレイ
152 電子発光画素
154 カソード接続
158 アノード接続
200 電流生成器
202 供給線
204 列線
206 行線
208 グランド線
210 スイッチ接続
302 OLEDディスプレイ
304 行の線
306 行電極
308 列の線
310 列電極
314 yドライバー
316 xドライバー
318 プロセッサー
320 電力源
502 コントロールバス
503 フレームメモリ
504 ワーキングメモリ
506 ディスプレイ駆動プロセッサー
507 プログラムメモリ
508 クロック
509 列データ入力
510 列ドライバー
512 行ドライバー
1002 電流源
1012 電流ミラー
Claims (10)
- ディスプレイの駆動方法であって、前記ディスプレイは、行と列に配列された複数の画素を含むパッシブマトリックスマルチカラー電子発光ディスプレイであり、各前記画素は、それぞれ異なる第1および第2の色を有する少なくとも第1および第2のサブ画素を含み、
前記方法は、前記画素のグループを順に駆動してマルチカラー画像フレームを表示する工程を含み、
前記工程は、1フレーム期間にわたる駆動を含み、
前記フレーム期間は、前記画素のグループの各々における前記サブ画素のサブグループの最大駆動レベルに比例して前記画素のグループの各々を駆動する期間に分割され、
前記画素のグループの駆動は、前記フレーム期間の分割に応じて前記第1および第2の色それぞれのサブ画素の第1および第2のサブグループを駆動することを含み、
前記駆動はさらに、単一色の前記サブグループのサブ画素の前記最大駆動レベルに依存した継続期間、前記画素のグループを駆動することを含み、
前記継続期間は、前記単一色の色に依存した重み付け因子に比例するよう決定されることを特徴とするディスプレイの駆動方法。 - 前記色は青を含み、前記継続期間は、画素のグループの青色サブ画素のサブグループの最大駆動レベルに依存する請求項1に記載のディスプレイの駆動方法。
- 前記色は赤を含み、前記継続期間は、画素のグループの赤色サブ画素のサブグループの最大駆動レベルに依存する請求項1に記載のディスプレイの駆動方法。
- 前記駆動は、前記サブグループを駆動する前記継続期間に対応して前記サブ画素のサブグループに駆動を適合させることをさらに含む請求項1ないし3のいずれかに記載のディスプレイの駆動方法。
- 前記画素のグループは、前記ディスプレイの前記行または列を含み、前記駆動は、前記ディスプレイの行ごとまたは列ごとの駆動を含む請求項1ないし4のいずれかに記載のディスプレイの駆動方法。
- 画素の前記グループは、前記ディスプレイの複数の行および複数の列における画素を含む前記ディスプレイの一時的サブフレームを含み、前記駆動は連続的に複数の前記一時的サブフレームで前記ディスプレイを駆動することを含む請求項1ないし4のいずれかに記載のディスプレイの駆動方法。
- 前記ディスプレイは有機発光ダイオードディスプレイを含む請求項1ないし6のいずれかに記載のディスプレイの駆動方法。
- 請求項1ないし7のいずれかに記載のディスプレイの駆動方法を実行するプロセッサー制御コードを有するキャリアー媒体。
- ディスプレイを駆動するためのドライバーであって、前記ディスプレイは行および列に配列された複数の画素を含むパッシブマトリックスマルチカラー電子発光ディスプレイであり、各前記画素はそれぞれ異なる第1および第2の色を有する少なくとも第1および第2のサブ画素を含み、
前記ディスプレイを駆動するためのドライバーは、前記画素のグループを順に駆動してマルチカラー画像フレームを表示するための手段であって、
前記駆動は、1フレーム期間にわたる駆動を含み、
前記フレーム期間は、前記画素のグループの各々における前記サブ画素のサブグループの最大駆動レベルに比例して前記画素のグループの各々を駆動する期間に分割され、
前記画素のグループを駆動するための手段が、前記フレーム期間の分割に応じてそれぞれ前記第1および第2の色のサブ画素の第1および第2のサブグループを駆動するための手段、および単一色の前記サブグループのサブ画素の前記最大駆動レベルに依存した継続期間、前記画素のグループを駆動するための手段を含み、
前記継続期間は、前記単一色の色に依存した重み付け因子に比例するよう決定されることを特徴とするディスプレイを駆動するためのドライバー。 - ディスプレイを駆動するためのドライバーであって、前記ディスプレイは行と列に配列された複数の画素を含むパッシブマトリックスマルチカラー電子発光ディスプレイであり、各前記画素はそれぞれ異なる第1および第2の色を有する少なくとも第1および第2のサブ画素を含み、
前記ディスプレイを駆動するためのドライバーは、
ディスプレイの画像データを受け取るためのデータ入力、
前記データ入力に結合されて前記ディスプレイを駆動するためのディスプレイ駆動出力を有するディスプレイ駆動システムであって、マルチカラー画像フレームを表示するために前記画素のグループを順に駆動するためのディスプレイ駆動信号を出力するように設計されており、
前記駆動は、1フレーム期間にわたる駆動を含み、
前記フレーム期間は、前記画素のグループの各々における前記サブ画素のサブグループの最大駆動レベルに比例して前記画素のグループの各々を駆動する期間に分割され、
画素のグループの前記駆動は前記フレーム期間の分割に応じてそれぞれ前記第1および第2の色のサブ画素の第1および第2サブのグループの駆動を含むディスプレイ駆動システム、および
前記ディスプレイ駆動システムに結合された駆動時間計算システムであって、単一色の前記サブグループのサブ画素の前記最大駆動レベルに依存した継続期間、前記画素のグループを駆動するために前記ディスプレイ駆動システムを制御するように設計された駆動時間計算システムを含み、
前記継続期間は、前記単一色の色に依存した重み付け因子に比例するよう決定されることを特徴とするディスプレイを駆動するためのドライバー。
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