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WO2003038797B1 - Circuit de commande de lignes de signal et dispositif electroluminescent - Google Patents

Circuit de commande de lignes de signal et dispositif electroluminescent

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Publication number
WO2003038797B1
WO2003038797B1 PCT/JP2002/011355 JP0211355W WO03038797B1 WO 2003038797 B1 WO2003038797 B1 WO 2003038797B1 JP 0211355 W JP0211355 W JP 0211355W WO 03038797 B1 WO03038797 B1 WO 03038797B1
Authority
WO
WIPO (PCT)
Prior art keywords
current
transistor
gate
current source
signal line
Prior art date
Application number
PCT/JP2002/011355
Other languages
English (en)
French (fr)
Other versions
WO2003038797A1 (fr
Inventor
Hajime Kimura
Original Assignee
Semiconductor Energy Lab
Hajime Kimura
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Semiconductor Energy Lab, Hajime Kimura filed Critical Semiconductor Energy Lab
Priority to EP02775443.1A priority Critical patent/EP1486942B1/en
Priority to JP2003540970A priority patent/JP4811845B2/ja
Priority to CN02826522XA priority patent/CN1809858B/zh
Publication of WO2003038797A1 publication Critical patent/WO2003038797A1/ja
Publication of WO2003038797B1 publication Critical patent/WO2003038797B1/ja

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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
    • 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]
    • G09G3/3275—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
    • 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
    • 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
    • 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
    • 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
    • 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
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0221—Addressing of scan or signal lines with use of split matrices
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2018—Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022—Display of intermediate tones by time modulation using two or more time intervals using sub-frames

Landscapes

  • 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)
  • Control Of El Displays (AREA)
  • Electroluminescent Light Sources (AREA)
  • Electronic Switches (AREA)

Claims

75 補正書の請求の範囲 [2003年 4月 24日 （24. 04. 03) 国際事務局受理：出願当初の請求の範囲 1-8, 11及び 12は補正された； 他の請求の範囲は変更なし。 ]
1 . (補正後） 複数の信号線の各々に対応した第 1及び第 2電流源回路、 並びにシ フトレジスタを有する信号線駆動回路であって、
前記第 1及び前記第 2電流源回路の各々は、 容量素子を有し、
前記シフトレジスタから供給されるサンプリングパルスと外部から供給される ラッチパルスに従って、 前記第 1及び前記第 2電流源回路の一方は、 n個のビデオ 信号用電流源の各々から供給される電流を加算した電流を電圧に変換し （nは自然 数）、 前記容量素子により前記電圧を保持し、 他方は前記電圧に応じた電流を信号 線に供給し、
前記 n個のビデオ信号用電流源から供給される電流値は、 2。： 2 1： · · · ： 2 に設定されることを特徴とする信号線駆動回路。
2 . (補正後） 複数の信号線の各々に対応した （2 X n ) 個の電流源回路、 並びに シフトレジスタを有する信号線駆動回路であって （ nは自然数）、
前記 （2 X n ) 個の電流源回路はそれぞれ容量素子を有し、
n個のビデオ信号用電流源のそれぞれに前記 （ 2 X n ) 個の電流源回路が 2個づ つ対応し、
前記 2個の電流源回路の一方は、 前記シフトレジスタから供給されるサンプリン グパルスと外部から供給されるラッチパルスに従つて、 前記対応するビデオ信号用 電流源から供給された電流を電圧に変換し、 前記容量素子により前記電圧を保持し、 他方は前記電圧に応じた電流を供給し、
前記複数の信号線の各々には、 前記 （2 X n ) 個の電流源回路から選択された n 個から電流が供給され、
前記 n個のビデオ信号用電流源から供給される電流値は、 2 Q： 2 1： · · · ： 2 n 1に設定されることを特徴とする信号線駆動回路。
3 . (補正後） 請求項 1又は請求項 2において、 補正された用紙 （条約第 19条） 76
前記電流源回路はさらにトランジスタを有し、 前記トランジスタのドレインとゲ 一卜が短絡された状態にあるとき、 供給された電流により前記容量素子に蓄積され た電荷によって、 前記トランジスタのゲート ·ソ一ス間に発生する電圧を保持する ことを特徴とする信号線駆動回路。
4. (補正後） 請求項 1又は請求項 2において、
前記電流源回路はさらに、 トランジス夕と、 前記トランジス夕のゲートとドレイ ンの導通を制御する第 1スィツチと、 前記ビデオ信号用電流源と前記卜ランジス夕 のソース或いはドレインの導通を制御する第 2スィッチと、 前記トランジスタのド レインと画素の導通を制御する第 3スィツチとを有することを特徵とする信号線 駆動回路。
5 . (補正後） 請求項 1又は請求項 2において、
前記電流源回路はさらに、 第 1及び第 2トランジス夕を有し、 前記第 1及び第 2 トランジスタの両方のドレインとゲートが短絡された状態にあるとき、 供給された 電流により前記容量素子に蓄積された電荷によって、 前記第 1又は前記第 2トラン ジス夕のゲ一ト ·ソース間に発生する電圧を保持することを特徴とする信号線駆動 回路。
6 . (補正後） 請求項 1又は請求項 2において、
前記電流源回路はさらに、 第 1及び第 2トランジスタで構成されるカレントミラ —回路と、 前記第 1トランジスタのゲートとドレインの導通を制御する第 1スイツ チと、 前記ビデオ信号用電流源と前記第 1トランジスタのソース或いはドレインの 導通を制御する第 2スィツチを有することを特徴とする信号線駆動回路。
7 . (補正後） 請求項 1又は請求項 2において、
前記電流源回路はさらに、 第 1及び第 2トランジスタを有し、 前記第 1のトラン ジス夕のドレインとゲ一トが短絡された状態にあるとき、 供給された電流により前 記容量素子に蓄積された電荷によって、 そのゲート ·ソース間に発生する電圧を保 持することを特徴とする信号線駆動回路。 補正された用紙 （条約第 19条） 77
8 . (補正後） 請求項 1又は請求項 2において、
前記電流源回路はさらに、 第 1及び第 2のトランジスタを含む力レントミラー回 路と、
前記ビデオ信号用電流源と前記第 1 トランジス夕のソース或いはドレインとの 導通を制御する第 1スィッチと、
前記第 1トランジスタのドレインとゲート、 前記第 1トランジスタのゲートと前 記第 2トランジスタのゲ一卜、 前記第 1及び前記第 2トランジスタのゲートと前記 ビデオ信号用電流源から選択されたいずれか 1つの導通を制御する第 2スィツチ とを有することを特徴とする信号線駆動回路。
9 . 請求項 6乃至請求項 8のいずれか一項において、
前記第 1及び前記第 2トランジス夕のゲ一ト幅/ゲート長は同じ値に設定される ことを特徴とする信号線駆動回路。
1 0 . 請求項 6乃至請求項 8のいずれか一項において、
前記第 1トランジスタのゲ一卜幅/ゲート長は、 前記第 2トランジスタのゲート 幅/ゲ一ト長よりも大きい値に設定されることを特徴とする信号線駆動回路。
1 1 . (補正後） 請求項 1又は請求項 2において、
前記電流源回路は、 トランジスタと、 前記容量素子に対する電流の供給を制御す る第 1及び第 2スィッチと、 前記トランジスタのゲートとドレインの導通を制御す る第 3スィッチを有し、
前記トランジス夕のゲートは前記第 3スィッチに接続され、 前記トランジスタの ソースは前記第 1スィツチに接続され、 前記トランジス夕のドレインは前記第 2ス イッチに接続されることを特徴とする信号線駆動回路。
1 2 . (補正後） 請求項 1又は請求項 2において、
前記電流源回路は、 m個のトランジスタを含むカレントミラ一回路を有し、 前記 m個のトランジスタのゲート幅/ゲート長は 2。： 2 1： · · · ： 2 m-1に設定 され、 補正された用紙 （条約第 19条） 78
前記 m個のトランジスタのドレイン電流は 2 Q： 2 1 ： · · · ： 2 m—1に設定され ることを特徴とする信号線駆動回路。
1 3 . 請求項 1乃至請求項 3のいずれか一項において、
前記供給手段を構成するトランジスタは飽和領域で動作することを特徴とする 信号線駆動回路。
1 4. 請求項 1又は請求項 2において、
前記電流源回路を構成するトランジスタの能動層はポリシリコンで形成される ことを特徴とする信号線駆動回路。
1 5 . 請求項 1乃至請求項 1 4のいずれか一項に記載の前記信号線駆動回路と、 各々に発光素子を含む複数の画素がマトリクス状に配置された画素部を有するこ とを特徴とする発光装置。
補正された用紙 （条約第 19条）
PCT/JP2002/011355 2001-10-31 2002-10-31 Circuit de commande de lignes de signal et dispositif electroluminescent WO2003038797A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02775443.1A EP1486942B1 (en) 2001-10-31 2002-10-31 Signal line drive circuit and light emitting device
JP2003540970A JP4811845B2 (ja) 2001-10-31 2002-10-31 半導体装置
CN02826522XA CN1809858B (zh) 2001-10-31 2002-10-31 信号线驱动电路及发光装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2001335918 2001-10-31
JP2001-335918 2001-10-31
JP2002-287948 2002-09-30
JP2002287948 2002-09-30

Publications (2)

Publication Number Publication Date
WO2003038797A1 WO2003038797A1 (fr) 2003-05-08
WO2003038797B1 true WO2003038797B1 (fr) 2003-09-25

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US (4) US6963336B2 (ja)
EP (1) EP1486942B1 (ja)
JP (5) JP4811845B2 (ja)
KR (1) KR100924740B1 (ja)
CN (3) CN1809858B (ja)
TW (1) TWI261217B (ja)
WO (1) WO2003038797A1 (ja)

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US8284128B2 (en) 2003-06-06 2012-10-09 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device

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