JP2009522617A - Memsディスプレイ素子を駆動する方法およびシステム - Google Patents
Memsディスプレイ素子を駆動する方法およびシステム Download PDFInfo
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Abstract
【解決手段】MEMSディスプレイ素子を駆動するためのシステムと方法が開示されている。一実施形態では、ディスプレイは、MEMSディスプレイ素子(30)のアレイと、前記アレイに接続された駆動回路(22)とを備えており、前記駆動回路は、前記アレイを駆動する行信号と列信号を供給するように構成されており、前記行および列信号の一方だけが温度変化に対して調節される。別の実施形態では、MEMSディスプレイ素子のアレイを駆動する方法が開示されており、その方法は、所定の位置における温度を感知すること(102)と、感知温度に少なくともいくぶん基づいたレベルを有している行信号と列信号の一方と、感知温度に基づいていない他方とを生成すること(106)と、前記行および列信号を前記アレイに供給すること(108)とを有している。
【選択図】
Description
画素を弛緩させることは、適切な列を+Vbiasに、適切な行を同じ+ΔVにセットして、画素の両端にゼロボルト電位差を生成することより実施する。行電圧がゼロボルトに保持される行では、画素は、列が+Vbiasか−Vbiasかにかかわらず、それらがもとあった状態で安定している。また図4に示すように、上述したほかに逆極性の電圧を使用することができること、たとえば、画素を動作させることが適切な列を+Vbiasに、適切な行を−ΔVにセットすることを含みうることもわかるであろう。本実施形態では、画素を解放することは、適切な列を−Vbiasに、適切な行を−ΔVにセットして、画素の両端にゼロボルト電位差を生産することにより実施する。
Claims (20)
- 微小電気機械システム(MEMS)ディスプレイ素子のアレイと、
前記アレイに接続され、かつ前記アレイを駆動する動作信号を供給するように構成された駆動回路とを備え、前記動作信号は少なくとも行信号と列信号とから構成されており、前記行および列信号の一方だけが温度変化に対して調節されるディスプレイ。 - 前記行および列信号の一方だけが、前記アレイに表示されるべき画像を表わすデータ信号で構成されており、データ信号を構成している前記信号だけが温度変化に対して調節される、請求項1のディスプレイ。
- MEMSディスプレイ素子の少なくとも一つが光干渉変調器で構成されている、請求項2のディスプレイ。
- 前記行および列信号が電圧信号で構成されている、請求項3のディスプレイ。
- 温度変化に対して調節されるべき前記行または列電圧信号が、温度Tにおいて、二つの値VhighとVlowの一方をとるように設計されており、それらは次式によって計算でき、
Vhigh=Vbias0+Kt *(T−T0)
Vlow=−Vbias0−Kt *(T−T0)
ここで、Vbias0と−Vbias0は基準温度T0においてアレイを駆動するために選択された電圧値であり、Ktは負の定数である、請求項4のディスプレイ。 - 前記ディスプレイと通信するように構成されたプロセッサーであって、画像データを処理するように構成された前記プロセッサーと、
前記プロセッサーと通信するように構成されたメモリーデバイスとをさらに備えている、請求項1のディスプレイ。 - 前記画像データの少なくとも一部を前記ドライバーに送るように構成されたコントローラーをさらに備えている、請求項6のディスプレイ。
- 前記画像データを前記プロセッサーへ送るように構成された像源モジュールをさらに備えている、請求項6のディスプレイ。
- 前記像源モジュールは、レシーバー、トランシーバーおよびトランスミッターに少なくとも一つを備えている、請求項8のディスプレイ。
- 入力データを受け取り、前記入力データを前記プロセッサーに通信するように構成された入力装置をさらに備えている、請求項6のディスプレイ。
- 微小電気機械システム(MEMS)ディスプレイ素子のアレイを駆動する方法であり、
所定の位置における温度を感知することと、
感知温度に少なくともいくぶん基づいたレベルを有している行信号と列信号の一方と、感知温度に基づいていない行および列信号の他方とを生成することと、
前記行および列信号を前記アレイに供給することとを有している方法。 - 前記行および列信号の一方だけが、前記アレイに表示されるべき画像を表わすデータ信号から構成されており、データ信号から構成されている前記信号だけが感知温度に基づいて生成される、請求項11の方法。
- MEMSディスプレイ素子の少なくとも一つが光干渉変調器で構成されている、請求項12の方法。
- 前記行および列信号が電圧信号である、請求項13の方法。
- 温度に基づいて前記行または列電圧信号の一方を生成することは、感知温度Tにおける二つの値VhighおよびVlowの少なくとも一つを次式によって計算することを有し、
Vhigh=Vbias0+Kt *(T−T0)
Vlow=−Vbias0−Kt *(T−T0)
ここで、Vbias0と−Vbias0は基準温度T0においてアレイを駆動するために選択された電圧値であり、Ktは負の定数である、請求項14の方法。 - 所定の位置における温度を感知するための手段と、
感知温度に少なくともいくぶん基づいたレベルを有している行信号と列信号の一方と、感知温度に基づいていない行および列信号の他方とを生成するための手段と、
画像データを表示するための手段と、
前記行および列信号を前記表示手段に供給のための手段とを備えているディスプレイ。 - 前記行および列信号の一方だけが、前記表示手段に表示されるべき画像を表わすデータ信号で構成されており、データ信号を構成している前記信号だけが感知温度に基づいて生成される、請求項16のディスプレイ。
- 表示手段が光干渉変調器で構成されている、請求項17のディスプレイ。
- 前記行および列信号が電圧信号で構成されている、請求項18のディスプレイ。
- 温度に基づいて前記行または列電圧信号の一方を生成するための手段は、感知温度Tにおける二つの値VhighおよびVlowの少なくとも一つを次式によって計算するための手段をさらに備えており、
Vhigh=Vbias0+Kt *(T−T0)
Vlow=−Vbias0−Kt *(T−T0)
ここで、Vbias0と−Vbias0は基準温度T0においてアレイを駆動するために選択された電圧値であり、Ktは負の定数である、請求項19のディスプレイ。
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Application Number | Priority Date | Filing Date | Title |
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US11/327,191 US7355779B2 (en) | 2005-09-02 | 2006-01-06 | Method and system for driving MEMS display elements |
US11/327,191 | 2006-01-06 | ||
PCT/US2006/046797 WO2007081463A1 (en) | 2006-01-06 | 2006-12-07 | Method and system for driving mems display elements |
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JP4885983B2 JP4885983B2 (ja) | 2012-02-29 |
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US (1) | US7355779B2 (ja) |
EP (1) | EP1969584B1 (ja) |
JP (1) | JP4885983B2 (ja) |
KR (1) | KR101341075B1 (ja) |
CN (1) | CN101395654B (ja) |
TW (1) | TWI416471B (ja) |
WO (1) | WO2007081463A1 (ja) |
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TWI290217B (en) * | 2005-01-24 | 2007-11-21 | Yan-De Guan | Power and temperature measuring method and device with high-end display card |
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2006
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013250580A (ja) * | 2008-02-11 | 2013-12-12 | Qualcomm Mems Technologies Inc | 干渉変調器ディスプレイの調整方法 |
US8775107B2 (en) | 2008-02-11 | 2014-07-08 | Qualcomm Mems Technologies, Inc. | Measurement and apparatus for electrical measurement of electrical drive parameters for a MEMS based display |
Also Published As
Publication number | Publication date |
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US20070053652A1 (en) | 2007-03-08 |
CN101395654B (zh) | 2011-04-13 |
CN101395654A (zh) | 2009-03-25 |
EP1969584A1 (en) | 2008-09-17 |
TW200733048A (en) | 2007-09-01 |
KR101341075B1 (ko) | 2013-12-11 |
WO2007081463A1 (en) | 2007-07-19 |
JP4885983B2 (ja) | 2012-02-29 |
KR20080090504A (ko) | 2008-10-08 |
TWI416471B (zh) | 2013-11-21 |
EP1969584B1 (en) | 2013-01-16 |
US7355779B2 (en) | 2008-04-08 |
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