JP4908796B2 - パッシブマトリクス有機発光ダイオード用出力ドライバ - Google Patents
パッシブマトリクス有機発光ダイオード用出力ドライバ Download PDFInfo
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- JP4908796B2 JP4908796B2 JP2005220573A JP2005220573A JP4908796B2 JP 4908796 B2 JP4908796 B2 JP 4908796B2 JP 2005220573 A JP2005220573 A JP 2005220573A JP 2005220573 A JP2005220573 A JP 2005220573A JP 4908796 B2 JP4908796 B2 JP 4908796B2
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- mos transistor
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- 239000011159 matrix material Substances 0.000 title claims description 8
- 239000000758 substrate Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
-
- 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]
- G09G3/3216—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 a passive matrix
-
- 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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3283—Details of drivers for data electrodes in which the data driver supplies a variable data current for setting the current through, or the voltage across, the light-emitting elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/17—Passive-matrix OLED displays
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
- Electronic Switches (AREA)
- Amplifiers (AREA)
Description
α1は、衝突イオン化定数、
β0は、衝突イオン化電流の第2パラメータ、
Leffは、PWMスイッチの実効チャネル長、
Vdseffは、実効ドレイン電圧、
Ideaは、ドレイン飽和電流、及び
VAは、アーリー電圧である。
320 PWMスイッチ
330 補償ダイオード
340 高電圧出力ドライバ部
Claims (4)
- 電圧が印加される低電源電圧端に接続され、前記電圧の値に比例する電流を、電流ミラー回路を介して複写して、複写電流を高電圧出力ドライバ部に出力する低電圧アナログ部と、
高電源電圧端に接続され、電流ミラー回路としての入力端に前記複写電流が出力されると通電し、電流ミラー回路としての出力端に出力電流を出力する前記高電圧出力ドライバ部と、
前記低電圧アナログ部及び高電圧出力ドライバ部の接続を断続するスイッチ部と、
前記低電圧アナログ部から前記高電圧出力ドライバ部へ前記複写電流を供給するための配線中の、前記高電圧出力ドライバ部及びスイッチ部の間に挿入される、少なくとも1つの補償ダイオードとを備え、
前記高電圧出力ドライバ部が、電流ミラー回路を構成する、ゲート端子同士が互いに接続された第1のMOSトランジスタおよび第2のMOSトランジスタを備え、前記第1のMOSトランジスタのソース又はドレイン端子の一端が、電流ミラー回路としての前記入力端を構成し、前記第2のMOSトランジスタのソース又はドレイン端子の一端が、電流ミラー回路としての前記出力端を構成し、前記第1のMOSトランジスタの他端および前記第2のMOSトランジスタの他端が、前記高電源電圧端に接続され、
前記高電源電圧端に印加される電圧が、前記複写電流が前記高電圧出力ドライバ部に印加されるようにするための電圧であり、前記複写電流が、前記高電圧出力ドライバ部の前記入力端に入力されると、前記高電圧出力ドライバ部が、前記複写電流と同じ大きさの前記出力電流を、出力ドライバの出力として前記高電圧出力ドライバ部の前記出力端から出力することを特徴とするパッシブマトリクス有機発光ダイオード用出力ドライバ。 - 前記補償ダイオードが、MOSトランジスタを用いて形成されることを特徴とする請求項1に記載のパッシブマトリクス有機発光ダイオード用出力ドライバ。
- 電圧が印加される低電源電圧端に接続され、前記電圧の値に比例する電流を、電流ミラー回路を介して複写して、複写電流を第1高電圧ドライバに出力する第2高電圧ドライバと、
高電源電圧端に接続され、電流ミラー回路としての入力端に前記複写電流が出力されると通電し、電流ミラー回路としての出力端に出力電流を出力する前記第1高電圧ドライバと、
前記第2高電圧ドライバから前記第1高電圧ドライバへ前記複写電流を供給するための配線中の、前記第1高電圧ドライバ及び第2高電圧ドライバの間に挿入される、少なくとも1つの補償ダイオードとを備え、
前記第1高電圧ドライバが、電流ミラー回路を構成する、ゲート端子同士が互いに接続された第1のMOSトランジスタおよび第2のMOSトランジスタを備え、前記第1のMOSトランジスタのソース又はドレイン端子の一端が、電流ミラー回路としての前記入力端を構成し、前記第2のMOSトランジスタのソース又はドレイン端子の一端が、電流ミラー回路としての前記出力端を構成し、前記第1のMOSトランジスタの他端および前記第2のMOSトランジスタの他端が、前記高電源電圧端に接続され、
前記高電源電圧端に印加される電圧が、前記複写電流が前記第1高電圧ドライバに印加されるようにするための電圧であり、前記複写電流が、前記第1高電圧ドライバの前記入力端に入力されると、前記第1高電圧ドライバが、前記複写電流と同じ大きさの前記出力電流を、出力ドライバの出力として前記第1高電圧ドライバの前記出力端から出力することを特徴とするパッシブマトリクス有機発光ダイオード用出力ドライバ。 - 前記補償ダイオードが、MOSトランジスタを用いて形成されることを特徴とする請求項3に記載のパッシブマトリクス有機発光ダイオード用出力ドライバ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040059528A KR100657152B1 (ko) | 2004-07-29 | 2004-07-29 | 수동 매트릭스 유기 발광 다이오드용 출력 드라이버 |
KR10-2004-0059528 | 2004-07-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006039577A JP2006039577A (ja) | 2006-02-09 |
JP4908796B2 true JP4908796B2 (ja) | 2012-04-04 |
Family
ID=35731456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005220573A Active JP4908796B2 (ja) | 2004-07-29 | 2005-07-29 | パッシブマトリクス有機発光ダイオード用出力ドライバ |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060022746A1 (ja) |
JP (1) | JP4908796B2 (ja) |
KR (1) | KR100657152B1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI323871B (en) * | 2006-02-17 | 2010-04-21 | Himax Tech Inc | Current mirror for oled |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0669140B2 (ja) * | 1982-11-19 | 1994-08-31 | 株式会社東芝 | レベルシフト回路 |
JPS62276908A (ja) * | 1986-02-19 | 1987-12-01 | Hitachi Ltd | 半導体回路 |
EP0561469A3 (en) * | 1992-03-18 | 1993-10-06 | National Semiconductor Corporation | Enhancement-depletion mode cascode current mirror |
JPH05284003A (ja) * | 1992-04-02 | 1993-10-29 | Nec Corp | 出力回路 |
US5309039A (en) * | 1992-09-29 | 1994-05-03 | Motorola, Inc. | Power supply dependent input buffer |
US5515010A (en) * | 1994-09-26 | 1996-05-07 | Texas Instruments Incorporated | Dual voltage level shifted, cascoded current mirror |
JP2783241B2 (ja) * | 1996-02-20 | 1998-08-06 | 日本電気株式会社 | 発光素子駆動回路 |
JP3728046B2 (ja) * | 1996-06-26 | 2005-12-21 | 沖電気工業株式会社 | 極性反転検出回路 |
JP4059537B2 (ja) * | 1996-10-04 | 2008-03-12 | 三菱電機株式会社 | 有機薄膜el表示装置及びその駆動方法 |
WO2001008299A1 (fr) * | 1999-07-23 | 2001-02-01 | Fujitsu Limited | Circuit miroir de courant basse tension |
JP4735911B2 (ja) * | 2000-12-28 | 2011-07-27 | 日本電気株式会社 | 駆動回路及びこれを用いた定電流駆動装置 |
JP4009077B2 (ja) * | 2001-09-19 | 2007-11-14 | 松下電器産業株式会社 | 電流駆動装置 |
JP3924179B2 (ja) * | 2002-02-12 | 2007-06-06 | ローム株式会社 | D/a変換回路およびこれを用いる有機el駆動回路 |
TW586104B (en) * | 2002-02-12 | 2004-05-01 | Rohm Co Ltd | Organic EL drive circuit and organic EL display device using the same |
JP3647846B2 (ja) * | 2002-02-12 | 2005-05-18 | ローム株式会社 | 有機el駆動回路および有機el表示装置 |
US20040217934A1 (en) * | 2003-04-30 | 2004-11-04 | Jin-Seok Yang | Driving circuit of flat panel display device |
JP3746049B2 (ja) * | 2003-09-24 | 2006-02-15 | 株式会社リコー | レーザダイオード駆動回路 |
JP4528101B2 (ja) * | 2003-11-26 | 2010-08-18 | ローム株式会社 | D/a変換回路、有機el駆動回路および有機el表示装置 |
US7026854B2 (en) * | 2004-05-21 | 2006-04-11 | Texas Instruments Incorporated | System for producing high-voltage, low-power driver circuitry |
US20060158392A1 (en) * | 2005-01-19 | 2006-07-20 | Princeton Technology Corporation | Two-part driver circuit for organic light emitting diode |
-
2004
- 2004-07-29 KR KR1020040059528A patent/KR100657152B1/ko active IP Right Grant
-
2005
- 2005-07-28 US US11/193,649 patent/US20060022746A1/en not_active Abandoned
- 2005-07-29 JP JP2005220573A patent/JP4908796B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20060022746A1 (en) | 2006-02-02 |
KR100657152B1 (ko) | 2006-12-12 |
JP2006039577A (ja) | 2006-02-09 |
KR20060010925A (ko) | 2006-02-03 |
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