JP2006098551A - 表示装置及びその駆動方法 - Google Patents
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- 238000000034 method Methods 0.000 title claims description 19
- 239000003990 capacitor Substances 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
- G09G3/3241—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror
- G09G3/325—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element the current through the light-emitting element being set using a data current provided by the data driver, e.g. by using a two-transistor current mirror the data current flowing through the driving transistor during a setting phase, e.g. by using a switch for connecting the driving transistor to the data driver
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/088—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements using a non-linear two-terminal element
- G09G2300/0885—Pixel comprising a non-linear two-terminal element alone in series with each display pixel element
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- 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
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
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- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/066—Adjustment of display parameters for control of contrast
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
【解決手段】
各画素PXの書込期間において、出力制御スイッチSW4を開いたまま、駆動制御素子DR1の第1制御端子と駆動制御素子DR2の第2制御端子と駆動制御素子DR1の第1出力端子と映像信号線DLとを互いに接続すると共に走査信号線SL1の電位を第1電位に設定して表示素子OLEDに流すべき駆動電流に対応した大きさの電流を映像信号線DLに流す第1動作と、第1及び第2制御端子と第1出力端子と映像信号線DLとの各接続を断った状態で走査信号線SL1の電位を第1電位から第2電位へと変化させる第2動作とを順次行い、この書込期間に続く有効表示期間では、出力制御スイッチSW4を閉じ且つ第1及び第2制御端子と第1出力端子と映像信号線DLとの各接続を断つと共に走査信号線SL1の電位を第2電位に維持した状態で、表示素子OLEDに駆動電流を流す。
【選択図】 図1
Description
まず、nチャネルFETのドレインとゲートとを接続し、この状態でnチャネルFETのドレイン−ソース間に映像信号に対応した大きさの電流Isigを流す。この動作により、キャパシタの両電極間の電圧は、nチャネルFETのチャネルに電流Isigを流すのに必要なゲート−ソース間電圧に設定される。
第1態様に係る表示装置では、駆動制御素子DR2及び出力制御スイッチSW4の動作は、走査信号線ドライバYDRから走査信号線SL1を介して供給する走査信号によって制御した。そのため、第1態様に係る表示装置では、駆動制御素子DR2の動作を、出力制御スイッチSW4の動作から独立して制御することは不可能である。
Claims (9)
- マトリクス状に配置された複数の画素と、前記複数の画素が形成する行に対応して配列した複数本の第1走査信号線と、前記複数の画素が形成する列に対応して配列した複数本の映像信号線とを具備し、
前記複数の画素のそれぞれは、
第1電源端子に接続された第1入力端子と第1制御端子とそれらの間の電圧に対応した電流を出力する第1出力端子とを含んだ第1駆動制御素子と、
前記第1出力端子に接続された第2入力端子と第2制御端子とそれらの間の電圧に対応した電流を出力する第2出力端子とを含んだ第2駆動制御素子と、
定電位端子と前記第1制御端子との間に接続された第1キャパシタと、
前記第1走査信号線と前記第2制御端子との間に接続された第2キャパシタと、
流れる電流に応じて光学特性が変化する表示素子と、
前記第2出力端子と第2電源端子との間に前記表示素子と直列に接続された出力制御スイッチと、
前記第1及び第2制御端子と前記第1出力端子と前記映像信号線との接続を、それらが互いに接続された状態と、各接続が断たれた状態との間で切り替えるスイッチ群とを備えたことを特徴とする表示装置。 - 前記複数の画素のそれぞれの書込期間において、前記出力制御スイッチを開いたまま、前記第1及び第2制御端子と前記第1出力端子と前記映像信号線とを互いに接続すると共に前記第1走査信号線の電位を第1電位に設定して前記表示素子に流すべき駆動電流に対応した大きさの電流を前記映像信号線に流す第1動作と、前記第1及び第2制御端子と前記第1出力端子と前記映像信号線との各接続を断った状態で前記第1走査信号線の電位を前記第1電位から第2電位へと変化させる第2動作とを順次行い、
この書込期間に続く有効表示期間では、前記出力制御スイッチを閉じ且つ前記第1及び第2制御端子と前記第1出力端子と前記映像信号線との各接続を断つと共に前記第1走査信号線の電位を前記第2電位に維持した状態で、前記表示素子に前記駆動電流を流すように構成されたことを特徴とする請求項1に記載の表示装置。 - 前記第2動作により、前記第2入力端子と前記第2出力端子との間の抵抗を小さくするように構成されたことを特徴とする請求項2に記載の表示装置。
- 前記複数の画素が形成する行に対応して配列した複数本の第2走査信号線をさらに具備し、
前記スイッチ群は、一方の端子が前記第1制御端子に接続された第1スイッチと、一方の端子が前記第2制御端子に接続された第2スイッチと、一方の端子が前記第1出力端子又は前記映像信号線に接続された第3スイッチとを含み、
前記複数の画素のそれぞれにおいて、前記第1乃至第3スイッチの制御端子は前記第2走査信号線に接続されたことを特徴とする請求項1に記載の表示装置。 - 前記複数の画素のそれぞれにおいて、前記出力制御スイッチの制御端子は前記第1走査信号線に接続されたことを特徴とする請求項1に記載の表示装置。
- 前記複数の画素が形成する行に対応して配列した複数本の第3走査信号線をさらに具備し、
前記複数の画素のそれぞれにおいて、前記出力制御スイッチの制御端子は前記第3走査信号線に接続されたことを特徴とする請求項1に記載の表示装置。 - 前記表示素子は有機EL素子であることを特徴とする請求項1に記載の表示装置。
- マトリクス状に配置された複数の画素と、前記複数の画素が形成する行に対応して配列した複数本の第1走査信号線と、前記複数の画素が形成する列に対応して配列した複数本の映像信号線とを具備し、
前記複数の画素のそれぞれは、第1電源端子に接続された第1入力端子と第1制御端子とそれらの間の電圧に対応した電流を出力する第1出力端子とを含んだ第1駆動制御素子と、前記第1出力端子に接続された第2入力端子と第2制御端子とそれらの間の電圧に対応した電流を出力する第2出力端子とを含んだ第2駆動制御素子と、定電位端子と前記第1制御端子との間に接続された第1キャパシタと、前記第1走査信号線と前記第2制御端子との間に接続された第2キャパシタと、流れる電流に応じて光学特性が変化する表示素子と、前記第2出力端子と第2電源端子との間に前記表示素子と直列に接続された出力制御スイッチと、前記第1及び第2制御端子と前記第1出力端子と前記映像信号線との接続を、それらが互いに接続された状態と、各接続が断たれた状態との間で切り替えるスイッチ群とを備えた表示装置の駆動方法であって、
前記複数の画素のそれぞれの書込期間において、前記出力制御スイッチを開いたまま、前記第1及び第2制御端子と前記第1出力端子と前記映像信号線とを互いに接続すると共に前記第1走査信号線の電位を第1電位に設定して前記表示素子に流すべき駆動電流に対応した大きさの電流を前記映像信号線に流す第1動作と、前記第1及び第2制御端子と前記第1出力端子と前記映像信号線との各接続を断った状態で前記第1走査信号線の電位を前記第1電位から第2電位へと変化させる第2動作とを順次行い、
この書込期間に続く有効表示期間では、前記出力制御スイッチを閉じ且つ前記第1及び第2制御端子と前記第1出力端子と前記映像信号線との各接続を断つと共に前記第1走査信号線の電位を前記第2電位に維持した状態で、前記表示素子に前記駆動電流を流すことを特徴とする駆動方法。 - 前記第2動作により、前記第2入力端子と前記第2出力端子との間の抵抗を小さくするように構成されたことを特徴とする請求項8に記載の駆動方法。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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JP2004282677A JP4192133B2 (ja) | 2004-09-28 | 2004-09-28 | 表示装置及びその駆動方法 |
KR20077007051A KR100865812B1 (ko) | 2004-09-28 | 2005-09-26 | 디스플레이 및 그 구동 방법 |
EP05786001A EP1796069A4 (en) | 2004-09-28 | 2005-09-26 | DISPLAY DEVICE AND METHOD FOR OPERATING SAME |
PCT/JP2005/017631 WO2006035715A1 (ja) | 2004-09-28 | 2005-09-26 | 表示装置及びその駆動方法 |
CNB2005800323350A CN100440290C (zh) | 2004-09-28 | 2005-09-26 | 显示器及其驱动方法 |
TW94133780A TWI300917B (en) | 2004-09-28 | 2005-09-28 | Display and method of driving the same |
US11/687,308 US20070160066A1 (en) | 2004-09-28 | 2007-03-16 | Display and method of driving the same |
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JP2004282677A JP4192133B2 (ja) | 2004-09-28 | 2004-09-28 | 表示装置及びその駆動方法 |
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JP2006098551A true JP2006098551A (ja) | 2006-04-13 |
JP4192133B2 JP4192133B2 (ja) | 2008-12-03 |
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US (1) | US20070160066A1 (ja) |
EP (1) | EP1796069A4 (ja) |
JP (1) | JP4192133B2 (ja) |
KR (1) | KR100865812B1 (ja) |
CN (1) | CN100440290C (ja) |
TW (1) | TWI300917B (ja) |
WO (1) | WO2006035715A1 (ja) |
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---|---|---|---|---|
GB9812742D0 (en) * | 1998-06-12 | 1998-08-12 | Philips Electronics Nv | Active matrix electroluminescent display devices |
KR100861756B1 (ko) * | 1999-07-14 | 2008-10-06 | 소니 가부시끼 가이샤 | 전류 구동 회로 및 그것을 사용한 표시 장치, 화소 회로,및 구동 방법 |
GB0205859D0 (en) * | 2002-03-13 | 2002-04-24 | Koninkl Philips Electronics Nv | Electroluminescent display device |
JP2003295826A (ja) * | 2002-04-03 | 2003-10-15 | Sanyo Electric Co Ltd | 有機el表示装置 |
JP4089289B2 (ja) * | 2002-05-17 | 2008-05-28 | 株式会社日立製作所 | 画像表示装置 |
JP2004054238A (ja) * | 2002-05-31 | 2004-02-19 | Seiko Epson Corp | 電子回路、電気光学装置、電気光学装置の駆動方法、及び電子機器 |
KR100906964B1 (ko) * | 2002-09-25 | 2009-07-08 | 삼성전자주식회사 | 유기 전계발광 구동 소자와 이를 갖는 유기 전계발광 표시패널 |
KR100490622B1 (ko) * | 2003-01-21 | 2005-05-17 | 삼성에스디아이 주식회사 | 유기 전계발광 표시장치 및 그 구동방법과 픽셀회로 |
-
2004
- 2004-09-28 JP JP2004282677A patent/JP4192133B2/ja not_active Expired - Fee Related
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2005
- 2005-09-26 EP EP05786001A patent/EP1796069A4/en not_active Withdrawn
- 2005-09-26 KR KR20077007051A patent/KR100865812B1/ko active IP Right Grant
- 2005-09-26 CN CNB2005800323350A patent/CN100440290C/zh not_active Expired - Fee Related
- 2005-09-26 WO PCT/JP2005/017631 patent/WO2006035715A1/ja active Application Filing
- 2005-09-28 TW TW94133780A patent/TWI300917B/zh active
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2007
- 2007-03-16 US US11/687,308 patent/US20070160066A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
KR100865812B1 (ko) | 2008-10-28 |
KR20070058542A (ko) | 2007-06-08 |
EP1796069A1 (en) | 2007-06-13 |
TWI300917B (en) | 2008-09-11 |
JP4192133B2 (ja) | 2008-12-03 |
US20070160066A1 (en) | 2007-07-12 |
EP1796069A4 (en) | 2007-10-31 |
CN100440290C (zh) | 2008-12-03 |
WO2006035715A1 (ja) | 2006-04-06 |
CN101027710A (zh) | 2007-08-29 |
TW200638317A (en) | 2006-11-01 |
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