JP2012128431A - エネルギをセンスする発光ダイオード・ディスプレイ - Google Patents
エネルギをセンスする発光ダイオード・ディスプレイ Download PDFInfo
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
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- G09G2320/00—Control of display operating conditions
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- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
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Abstract
【解決手段】有機発光ダイオード(OLED)は発光器とエネルギ検出器との両方として動作させ得る。適切な駆動信号によって前方バイアスされた場合、OLEDは電界発光によって光を放出し、ディスプレイ上で画像の一部分を構成するのに用い得る。別の態様では、OLEDは光電効果によって入射光子又はエネルギを電気信号に変換することによってエネルギを検出し得る。ディスプレイにおけるOLEDを放出モードとセンス・モードとの両方にて動作することによって、外部ソースからのような、ディスプレイ上に照射するエネルギを、画像が表示されるのと同時に検出し得る。更に、OLEDを含むディスプレイはディスプレイ自体によって生成された光エネルギを検出し得る。
【選択図】図9
Description
光の放出もセンスも両方行い得るダイオード110からディスプレイを構成することによって、ディスプレイにおけるダイオード各々の明るさを個々に制御し得る。そのようなモードにおいては、少なくともディスプレイ130のダイオード110のいくつかが放出状態とセンス状態との間をトグルするか、ダイオード110のいくつかがそのセンス状態にとどまる。センス状態におけるダイオード110の数はいくつかの要因によって判定され、該要因は、例えば、個々のダイオードのエネルギ・センス感度、及びディスプレイ130においてセンス・ダイオードが配置される位置など、を含む。周囲光センス・モードにおいては、ディスプレイ130上の画像の部分を形成するよう放出モードにおける期間中はオン状態になる。次に、ダイオード110はセンス状態にスイッチし、ディスプレイ130上に照射する周囲光をセンスする。センス状態においては、ダイオード110の各々は照射する光の量を数量化する。ダイオード110が放出状態に再び戻る場合、個々のダイオードの現行の明るさを制御するよう、現行又は先行センス状態における光の照射量の数量化情報を用いる。すなわち、ダイオード110が先行サイクルよりも多い光エネルギ照射をセンスするか、現行サイクルにおける他のダイオード110よりも多い光エネルギ照射をセンスするか、恒久的に記憶された値よりも多い光の量をセンスする場合、ダイオード上の照射の明るさを更に高くするようそれらの特定のダイオードに更に大きな駆動電流が供給される。逆に、ダイオード110に照射される光エネルギが該ダイオードの周囲のダイオードよりも少ないか、先行サイクルよりも光エネルギが少ないか、先行記憶値よりも測定される光が少ない場合、それらのダイオードには更に少ない電流が印加され、現行サイクルにおいてはダイオード110の明るさは更に低くなる。
上記態様に関する態様ではディスプレイ130におけるダイオード110を標準駆動電流から他のダイオード110の個々の明るさ応答のカリブレーションを行うことを助力するのに用い得る。上記のように、種々の要因によって、個々のOLED10が同様な量の駆動電流によって駆動されていても異なる明るさの量を生成し得る。ディスプレイ130は、光の放出もセンスも両方とも行い得るダイオード110から構成され、これらの個々の差異を、ディスプレイ130が製造される際かディスプレイ130の動作中かの何れかに、補償し得る。
本発明の実施例は更に、個々のダイオードの実際のガンマ応答に基づいてディスプレイ130のダイオード110のガンマ均一性を実現することができる。この態様は上記の個々のダイオード110の明るさ均一性に類似したもので、1つ以上のダイオードが検査され、他のものがその性能を示す場合、同様に実施し得る。1つの差異は、しかしながら、ダイオード110の出力の測定が完全に暗い状態から完全に明るい状態までのダイオードの出力(「ガンマ曲線」、すなわち、駆動電流の明るさ出力に対する「一般伝達関数」)について行われることである。該測定は、該曲線に沿った比較的少ない数の点において行い得るか、該曲線に沿った多くの点で行い得る。「ガンマ数」は、ディスプレイが個々のダイオード110に対するガンマ曲線を恒久的に修正するよう製造される場合、一度だけ用い得るか、後に更新するようディスプレイ130に記憶し得る。上記の明るさ検査と同様に、本発明の実施例は、製造時に行われるような初期ガンマ・キャリブレーションも、定期的に行われるような自己キャリブレーションも両方とも、又は、ディスプレイ130が動作しているのと同時にリアル・タイムで、なお、継続ガンマ・キャリブレーションとしてでも、行うことができる。
ディスプレイ130の用途の別の可能性はレーザ又は他のタイプの外部ポインティング・デバイスの位置をセンスし、更に、ことによると、ポインティング・デバイスの応答をディスプレイ上で行われる動作と統合する、のに用い得る。上記のように、ディスプレイ130は、リアル・タイムで、光エネルギがディスプレイを照射する時点をセンスし得る。更に、どの画素がエネルギをセンスするかを判定することによって、ディスプレイ130上のエネルギの位置を判定し得る。したがって、この特徴を形成することによって、ポインティング・デバイスの存在及び位置を検出し得、該存在及び位置がわかると、ディスプレイ130の出力を制御するよう画面上に照射するポインティング・デバイスの動きをも可能にし得る。
本明細書及び特許請求の範囲に記載されたようなディスプレイ130は、上記のポインティング・デバイスを検出するのと同様に動作する、電子表示画面の構成部分であり得る。この動作では、光ペン、又は他のデバイス、から生成された光がディスプレイ130のダイオード110によってセンスされる。ディスプレイ130によってセンスされた入力は直ちに、入力を読み取るポインタ位置インタフェース252に送信され、その入力は画像生成器260に送信される。画像生成器は表示する画像を判定し、該画像を前方駆動回路74に送信してディスプレイ130上に該画像を表示する。例えば、観察者が光ペンを用いてディスプレイ130上にINTEL(登録商標)の文字を「書き込んだ」場合、ディスプレイは、書き込まれたのと同様の文字表示を表示し得る。関連実施例においては、ディスプレイ130は光ペンの異なった「色」を、例えば、特定の周波数又は強度を特定のペンの色に割り当て、更に、該特定のセンスされたペンを画像生成器260に先行して記憶された色と関係付けることによって、センスし得る。その場合、該関連付けられた色はディスプレイ130上の、その特定の色がディスプレイに対する入力として用いられた領域において、表示される。
Claims (5)
- ディスプレイ・システムであって、
画像を表示することができるディスプレイ・パネルであって、前記ディスプレイ・パネルは複数のディスプレイ素子を備え、前記ディスプレイ素子は前記ディスプレイ・パネル上に画像を形成させることができ、前記ディスプレイ・パネルは複数のセンス素子を更に備え、前記センス素子は外部光を検出することができ、前記ディスプレイ素子及び前記センス素子は列及び行に配置されるディスプレイ・パネルと、
前記ディスプレイ素子を駆動させ、前記ディスプレイ・パネル上に画像を形成させることができる駆動回路と、
前記センス素子が位置する前記列及び行に応じて、前記センス素子によって受け取られた外部光の量に基づいて情報を出力することができるセンス回路と、
前記センス素子が位置する前記列及び行に応じて、前記センス回路からの出力を記憶することができるデータ記憶装置と
を備えるディスプレイ・システム。 - 請求項1記載のディスプレイ・システムであって、前記センス回路は、センス素子によって検出された光の輝度に関係する値を前記データ記憶装置に送出することができ、前記データ記憶装置は前記値を記憶することができるディスプレイ・システム。
- 請求項1記載のディスプレイ・システムであって、前記ディスプレイ・パネルは、光を検出する一方で画像を形成することができるディスプレイ・システム。
- 請求項1記載のディスプレイ・システムであって、更に、前記データ記憶装置に結合された位置ロケータを含み、センス・モードにおいてセンス素子によって検出されたデータを比較するよう構成されたコンパレータを含み、前記位置ロケータは、比較されたデータに応じて、外部ポインティング・デバイスが指し示す位置を求めるよう構成されたディスプレイ・システム。
- 請求項1記載のディスプレイ・システムであって、前記ディスプレイ・システムは、携帯コンピューティング装置において使用されるディスプレイ・システム。
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US10/037,437 US7348946B2 (en) | 2001-12-31 | 2001-12-31 | Energy sensing light emitting diode display |
US10/037,437 | 2001-12-31 |
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JP2003558823A Division JP2005539247A (ja) | 2001-12-31 | 2002-12-18 | エネルギをセンスする発光ダイオード・ディスプレイ |
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JP2011285556A Expired - Lifetime JP5650100B2 (ja) | 2001-12-31 | 2011-12-27 | エネルギをセンスする発光ダイオード・ディスプレイ |
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US (5) | US7348946B2 (ja) |
EP (1) | EP1461795B1 (ja) |
JP (2) | JP2005539247A (ja) |
CN (1) | CN100403380C (ja) |
AT (1) | ATE426232T1 (ja) |
AU (1) | AU2002351404A1 (ja) |
DE (1) | DE60231648D1 (ja) |
TW (1) | TW556137B (ja) |
WO (1) | WO2003058588A2 (ja) |
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AU2564999A (en) * | 1998-01-27 | 1999-08-09 | Collaboration Properties, Inc. | Multifunction video communication service device |
US7348946B2 (en) | 2001-12-31 | 2008-03-25 | Intel Corporation | Energy sensing light emitting diode display |
WO2003073159A1 (en) * | 2002-02-20 | 2003-09-04 | Planar Systems, Inc. | Light sensitive display |
US7009663B2 (en) * | 2003-12-17 | 2006-03-07 | Planar Systems, Inc. | Integrated optical light sensitive active matrix liquid crystal display |
US7053967B2 (en) * | 2002-05-23 | 2006-05-30 | Planar Systems, Inc. | Light sensitive display |
US20040012565A1 (en) * | 2002-07-22 | 2004-01-22 | Eastman Kodak Company | Interactive display |
US7385572B2 (en) * | 2002-09-09 | 2008-06-10 | E.I Du Pont De Nemours And Company | Organic electronic device having improved homogeneity |
US20080084374A1 (en) * | 2003-02-20 | 2008-04-10 | Planar Systems, Inc. | Light sensitive display |
US20080048995A1 (en) * | 2003-02-20 | 2008-02-28 | Planar Systems, Inc. | Light sensitive display |
JP3702879B2 (ja) * | 2003-02-21 | 2005-10-05 | セイコーエプソン株式会社 | 電気光学パネル、その駆動回路及び駆動方法、並びに電子機器 |
JP2004348044A (ja) * | 2003-05-26 | 2004-12-09 | Seiko Epson Corp | 表示装置、表示方法及び表示装置の製造方法 |
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WO2003058588A2 (en) | 2003-07-17 |
US20030122749A1 (en) | 2003-07-03 |
US8026879B2 (en) | 2011-09-27 |
JP5650100B2 (ja) | 2015-01-07 |
US20170357379A1 (en) | 2017-12-14 |
US8963817B2 (en) | 2015-02-24 |
ATE426232T1 (de) | 2009-04-15 |
WO2003058588A3 (en) | 2003-09-18 |
DE60231648D1 (de) | 2009-04-30 |
US7348946B2 (en) | 2008-03-25 |
CN100403380C (zh) | 2008-07-16 |
TW556137B (en) | 2003-10-01 |
EP1461795A2 (en) | 2004-09-29 |
US20150301687A1 (en) | 2015-10-22 |
AU2002351404A1 (en) | 2003-07-24 |
US20080174530A1 (en) | 2008-07-24 |
US20110304592A1 (en) | 2011-12-15 |
US9665211B2 (en) | 2017-05-30 |
EP1461795B1 (en) | 2009-03-18 |
AU2002351404A8 (en) | 2003-07-24 |
JP2005539247A (ja) | 2005-12-22 |
US10241624B2 (en) | 2019-03-26 |
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