JP4383852B2 - Oled画素回路の駆動方法 - Google Patents
Oled画素回路の駆動方法 Download PDFInfo
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- JP4383852B2 JP4383852B2 JP2003507800A JP2003507800A JP4383852B2 JP 4383852 B2 JP4383852 B2 JP 4383852B2 JP 2003507800 A JP2003507800 A JP 2003507800A JP 2003507800 A JP2003507800 A JP 2003507800A JP 4383852 B2 JP4383852 B2 JP 4383852B2
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- oled
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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
- 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
- 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
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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
- G09G2300/0866—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 by means of changes in the pixel supply voltage
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0254—Control of polarity reversal in general, other than for liquid crystal displays
- G09G2310/0256—Control of polarity reversal in general, other than for liquid crystal displays with the purpose of reversing the voltage across a light emitting or modulating element within a pixel
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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
-
- 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
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/043—Preventing or counteracting the effects of ageing
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Description
(1)アモルファス・シリコン・フラット・パネル・ディスプレイ(FPD)の製造では、ポリシリコンに比べて、フォトリソグラフィ・ステップ数が少なく、従って低コストのため、n−チャネル電界効果トランジスタ(NFET)のみが使用可能である。
(2)p−チャネル電界効果トランジスタ(PFET)は、作製可能であるが、n−チャネル電界効果トランジスタ(NFET)より、移動度すなわちドリフトによる電荷移動が実質的に小さく(約5分の1ないし10分の1)、従って駆動電流が少ない。通常の製造ラインでは、NFETは、約0.5ないし1.0cm2/V/secの平均移動度をもつ。
Vdd−Vcs−Vgs(t)−Vss
であり、Vcs =Cs110にかかる電圧、
Vgs(t)=時間tの関数としての、NFETQ102のゲート・ソース電圧、
および
Vss =負の供給電圧すなわちOLEDのカソード電圧
である。
T. Sasaoka外、"A 13.0-inch AM-OLED Display with top emitting structure and adaptivecurrent mode programmed pixel circuit (TAC)"、2001 SID International Symposium Digest of Technical Papers、volumeXXXII、p384-387 R.M. A. Dawson外、"The impact of the transient response of organic light emitting diodeson the design of active matrix OLED displays"、IEDM、p875-878、1998 T. van de Biggelaar外、"Passive and active matrix addressed polymer light emitting diodedisplays"、Flat Panel DisplayTechnology and Display Metrology II of the Proceedings of the SPIE、Vol.4295、p134-146、2001 Yi He外、"Current-source a-Si:H thin film transistorcircuit for active-matrix organic light-emitting displays"、IEEE Electron Device Letters、vol.21、No.12、p590-592、2000
Claims (2)
- 3つのnチャネル電界効果トランジスタ(NFET)、データ記憶キャパシタ、有機発光ダイオード(OLED)、スイッチ、および少なくとも2つの電圧源を有する有機発光ダイオード(OLED)画素回路の駆動方法であって、前記画素回路においては、第1のNFETのゲート端および第2のNFETのゲート端がゲート線に接続され、前記第1のNFETのドレイン端、第3のNFETのソース端および前記データ記憶キャパシタの一端がそれぞれ前記OLEDのアノード端に接続され、前記第1のNFETのソース端がデータ線に接続され、前記データ記憶キャパシタの他の一端が前記第2のNFETのソース端および前記第3のNFETのゲート端に接続され、前記第2のNFETのドレイン端および前記第3のNFETのドレイン端が第1の電圧源に接続され、前記OLEDのカソードが前記スイッチを介して第2の電圧源に接続されており、前記スイッチの切り替えによって、前記画素回路の状態設定(データ書き込み)時に高い電圧である第1の信号を前記OLEDのカソード端子に印加し、前記画素回路の状態表示(発光観察)時に低い電圧である第2の信号を印加することを特徴とする有機発光ダイオードの画素回路の駆動方法。
- 前記画素回路が複数の画素回路の1つであり、前記複数の画素回路の各々の端子に前記第1の信号および前記第2の信号を印加することをさらに含む請求項1に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30021601P | 2001-06-22 | 2001-06-22 | |
PCT/US2002/019600 WO2003001496A1 (en) | 2001-06-22 | 2002-06-21 | Oled current drive pixel circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004531772A JP2004531772A (ja) | 2004-10-14 |
JP4383852B2 true JP4383852B2 (ja) | 2009-12-16 |
Family
ID=23158179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003507800A Expired - Fee Related JP4383852B2 (ja) | 2001-06-22 | 2002-06-21 | Oled画素回路の駆動方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6734636B2 (ja) |
EP (1) | EP1405297A4 (ja) |
JP (1) | JP4383852B2 (ja) |
KR (1) | KR100593276B1 (ja) |
CN (1) | CN100380433C (ja) |
WO (1) | WO2003001496A1 (ja) |
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JP2001318627A (ja) * | 2000-02-29 | 2001-11-16 | Semiconductor Energy Lab Co Ltd | 発光装置 |
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- 2002-06-21 US US10/176,931 patent/US6734636B2/en not_active Expired - Lifetime
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- 2002-06-21 KR KR1020037015151A patent/KR100593276B1/ko not_active IP Right Cessation
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CN1739135A (zh) | 2006-02-22 |
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EP1405297A1 (en) | 2004-04-07 |
US6734636B2 (en) | 2004-05-11 |
KR100593276B1 (ko) | 2006-06-26 |
US20020195968A1 (en) | 2002-12-26 |
WO2003001496A1 (en) | 2003-01-03 |
CN100380433C (zh) | 2008-04-09 |
JP2004531772A (ja) | 2004-10-14 |
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