JP7250898B2 - 電気光学ディスプレイおよび駆動方法 - Google Patents
電気光学ディスプレイおよび駆動方法 Download PDFInfo
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0204—Compensation of DC component across the pixels in flat panels
Description
本願は、2018年7月17日に出願された米国仮出願第62/699,117号に関連する。
本明細書中で提示される主題は、電気光学ディスプレイデバイスの駆動方法に関する。
カラーディスプレイを達成するために、カラーフィルタがしばしば用いられる。最も一般的な手法は、赤色、緑色および青色を表示するために、ピクセル化されたディスプレイの黒/白サブピクセルの上にカラーフィルタを付加することである。赤色が所望されるとき、表示される色が赤のみであるように、緑および青のサブピクセルは黒状態にされる。青色が所望されるとき、表示される色が青のみであるように、緑および赤のサブピクセルは黒状態にされる。緑色が所望されるとき、表示される色が緑のみであるように、赤および青のサブピクセルは、黒状態にされる。黒状態が所望されるとき、3つのサブピクセル全てが黒状態にされる。白状態が所望されるとき、3つのサブピクセルは、それぞれ、赤、緑および青にされ、結果として、白状態が閲覧者によって見られる。
本明細書中で開示される主題は、少なくとも1タイプのカラー顔料粒子を有する電気泳動材料を備えているディスプレイを駆動する駆動方法に関する。1つのそのような方法は、少なくとも1つのパルス対を印加して、少なくとも1タイプのカラー顔料粒子をリセットすることと、分離パルスを印加することと、第2のパルス対を印加して、少なくとも1タイプのカラー顔料粒子をリセットすることとを含み得る。
本明細書は、例えば、以下の項目も提供する。
(項目1)
少なくとも1つのタイプのカラー顔料粒子を有する電気泳動材料を備えているディスプレイを駆動する駆動方法であって、前記駆動方法は、
少なくとも1つのパルス対を印加し、前記少なくとも1つのタイプのカラー顔料粒子をリセットすることと、
分離パルスを印加することと、
第2のパルス対を印加し、前記少なくとも1つのタイプのカラー顔料粒子をリセットすることと
を含む、駆動方法。
(項目2)
前記少なくとも1つのパルス対は、正の振幅を有するパルスと、負の振幅を有するパルスとを含む、項目1に記載の駆動方法。
(項目3)
前記正の振幅を有する前記パルスと前記負の振幅を有する前記パルスとは、同一の持続時間を有する、項目2に記載の駆動方法。
(項目4)
前記分離パルスは、前記少なくとも1つのパルス対より長い持続時間を有する、項目1に記載の駆動方法。
(項目5)
前記少なくとも1つのパルス対は、前記第2のパルス対と異なる持続時間を有する、項目1に記載の駆動方法。
(項目6)
前記パルス対は、DCバランスされる、項目1に記載の駆動方法。
(項目7)
前記駆動方法は、DCバランスされる、項目1に記載の駆動方法。
(項目8)
前記分離パルスは、前記負の振幅を有する前記パルスと同一の振幅を有する、項目2に記載の駆動方法。
(項目9)
前記分離パルスは、前記正の振幅を有する前記パルスと同一の振幅を有する、項目2に記載の駆動方法。
(項目10)
前記分離パルスは、前記負の振幅を有する前記パルスと異なる振幅を有する、項目2に記載の駆動方法。
以下の図を参照して、本出願の種々の側面および実施形態が説明される。図は必ずしも縮尺通りに描かれていないことが認識されるべきである。複数の図に現れる項目は、それらが現れる全ての図において、同一の参照番号で示される。
本発明は、暗モードである電気光学ディスプレイ、特に双安定電気光学ディスプレイを駆動する方法に関し、そのような方法における使用のための装置に関する。より具体的に、この発明は、低減させられた「焼き付き」およびエッジアーティファクト、ならびに、黒い背景に白いテキストを表示するときのそのようなディスプレイにおける低減させられた発光を可能とし得る駆動方法に関する。この発明は、特に、しかし排他的ではなく、粒子ベースの電気光学ディスプレイでの使用を意図しており、粒子ベースの電気光学ディスプレイでは、1つ以上のタイプの荷電粒子が流体中に存在し、それらが電場の影響下で流体を通って移動させられ、ディスプレイの様相を変化させる。
の印加によってその第1のディスプレイ状態からその第2のディスプレイ状態へと変化させられる。光学特性は、典型的には、人間の目に知覚可能な色であるが、光学特性は、光透過性、反射性、発光、または、マシンリーディング向けのディスプレイの場合、可視範囲外の電磁波長の反射性の変化の意味での偽色等の、別の光学特性であり得る。
(a)電気泳動粒子、流体および流体添加剤(例えば、米国特許第7,002,728号および第7,679,814号参照)と、
(b)カプセル、バインダおよびカプセル化プロセス(例えば、米国特許第6,922,276号および第7,411,719号参照)と、
(c)電気光学材料を含むフィルムおよびサブアセンブリ(例えば、米国特許第6,982,178号および第7,839,564号参照)と、
(d)バックプレーン、接着剤層および他の補助層、ならびにディスプレイにおいて用いられる方法(例えば、米国特許第7,116,318号および第7,535,624号参照)と、
(e)色形成および色調節(例えば、米国特許第7,075,502号および米国特許出願公報第2007/0109219号参照)と、
(f)ディスプレイを駆動する方法(例えば、米国特許第5,930,026号、第6,445,489号、第6,504,524号、第6,512,354号、第6,531,997号、第6,753,999号、第6,825,970号、第6,900,851号、第6,995,550号、第7,012,600号、第7,023,420号、第7,034,783号、第7,061,166号、第7,061,662号、第7,116,466号、第7,119,772号、第7,177,066号、第7,193,625号、第7,202,847号、第7,242,514号、第7,259,744号、第7,304,787号、第7,312,794号、第7,327,511号、第7,408,699号、第7,453,445号、第7,492,339号、第7,528,822号、第7,545,358号、第7,583,251号、第7,602,374号、第7,612,760号、第7,679,599号、第7,679,813号、第7,683,606号、第7,688,297号、第7,729,039号、第7,733,311号、第7,733,335号、第7,787,169号、第7,859,742号、第7,952,557号、第7,956,841号、第7,982,479号、第7,999,787号、第8,077,141号、第8,125,501号、第8,139,050号、第8,174,490号、第8,243,013号、第8,274,472号、第8,289,250号、第8,300,006号、第8,305,341号、第8,314,784号、第8,373,649号、第8,384,658号、第8,456,414号、第8,462,102号、第8,537,105号、第8,558,783号、第8,558,785号、第8,558,786号、第8,558,855号、第8,576,164号、第8,576,259号、第8,593,396号、第8,605,032号、第8,643,595号、第8,665,206号、第8,681,191号、第8,730,153号、第8,810,525号、第8,928,562号、第8,928,641号、第8,976,444号、第9,013,394号、第9,019,197号、第9,019,198号、第9,019,318号、第9,082,352号、第9,171,508号、第9,218,773号、第9,224,338号、第9,224,342号、第9,224,344号、第9,230,492号、第9,251,736号、第9,262,973号、第9,269,311号、第9,299,294号、第9,373,289号、第9,390,066号、第9,390,661号、および第9,412,314号、ならびに、米国特許出願公報第2003/0102858号、第2004/0246562号、第2005/0253777号、第2007/0070032号、第2007/0076289号、第2007/0091418号、第2007/0103427号、第2007/0176912号、第2007/0296452号、第2008/0024429号、第2008/0024482号、第2008/0136774号、第2008/0169821号、第2008/0218471号、第2008/0291129号、第2008/0303780号、第2009/0174651号、第2009/0195568号、第2009/0322721号、第2010/0194733号、第2010/0194789号、第2010/0220121号、第2010/0265561号、第2010/0283804号、第2011/0063314号、第2011/0175875号、第2011/0193840号、第2011/0193841号、第2011/0199671号、第2011/0221740号、第2012/0001957号、第2012/0098740号、第2013/0063333号、第2013/0194250号、第2013/0249782号、第2013/0321278号、第2014/0009817号、第2014/0085355号、第2014/0204012号、第2014/0218277号、第2014/0240210号、第2014/0240373号、第2014/0253425号、第2014/0292830号、第2014/0293398号、第2014/0333685号、第2014/0340734号、第2015/0070744号、第2015/0097877号、第2015/0109283号、第2015/0213749号、第2015/0213765号、第2015/0221257号、第2015/0262255号、第2016/0071465号、第2016/0078820号、第2016/0093253号、第2016/0140910号、および第2016/0180777号参照)と、
(g)ディスプレイの用途(例えば、米国特許第7,312,784号および米国特許出願公報第2006/0279527号参照)と、
(h)米国特許第6,241,921号、第6,950,220号、および第7,420,549号、ならびに、米国特許出願公報第2009/0046082号で説明されるような非電気光学ディスプレイとを含む。
Claims (10)
- 少なくとも1つのタイプのカラー顔料粒子を有する電気泳動材料を備えているディスプレイを駆動する駆動方法であって、前記駆動方法は、
少なくとも1つのパルス対を印加し、前記少なくとも1つのタイプのカラー顔料粒子をリセットすることと、
前記少なくとも1つのパルス対の後に、第1の分離パルスを印加することであって、前記第1の分離パルスは、一定のDC電圧および一定の極性を有する、ことと、
第2のパルス対を印加し、前記少なくとも1つのタイプのカラー顔料粒子をリセットすることと、
前記第2のパルス対の後に、第2の分離パルスを印加することであって、前記第2の分離パルスは、前記第1の分離パルスと同一の一定のDC電圧を有し、前記第2の分離パルスは、前記第1の分離パルスと同一の一定の極性を有する、ことと
を含む、駆動方法。 - 前記少なくとも1つのパルス対は、正の振幅を有するパルスと、負の振幅を有するパルスとを含む、請求項1に記載の駆動方法。
- 前記正の振幅を有する前記パルスと前記負の振幅を有する前記パルスとは、同一の持続時間を有する、請求項2に記載の駆動方法。
- 前記第1の分離パルスは、前記少なくとも1つのパルス対より長い持続時間を有する、請求項1に記載の駆動方法。
- 前記少なくとも1つのパルス対は、前記第2のパルス対と異なる持続時間を有する、請求項1に記載の駆動方法。
- 前記少なくとも1つのパルス対は、DCバランスされる、請求項1に記載の駆動方法。
- 前記駆動方法は、DCバランスされる、請求項1に記載の駆動方法。
- 前記第1の分離パルスは、前記負の振幅を有する前記パルスと同一の振幅を有する、請求項2に記載の駆動方法。
- 前記第1の分離パルスは、前記正の振幅を有する前記パルスと同一の振幅を有する、請求項2に記載の駆動方法。
- 前記第1の分離パルスは、前記負の振幅を有する前記パルスと異なる振幅を有する、請求項2に記載の駆動方法。
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WO2020018508A1 (en) | 2020-01-23 |
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