JP4589848B2 - 有機電界発光装置 - Google Patents
有機電界発光装置 Download PDFInfo
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- JP4589848B2 JP4589848B2 JP2005255921A JP2005255921A JP4589848B2 JP 4589848 B2 JP4589848 B2 JP 4589848B2 JP 2005255921 A JP2005255921 A JP 2005255921A JP 2005255921 A JP2005255921 A JP 2005255921A JP 4589848 B2 JP4589848 B2 JP 4589848B2
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- 238000005401 electroluminescence Methods 0.000 title claims description 54
- 239000003990 capacitor Substances 0.000 claims description 61
- 230000004044 response Effects 0.000 claims description 23
- 230000005684 electric field Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 18
- 230000007547 defect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000002950 deficient Effects 0.000 description 6
- 239000010409 thin film Substances 0.000 description 5
- 230000004913 activation Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/04—Linings
- B65D90/041—Rigid liners fixed to the container
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- 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
- G09G2300/0814—Several active elements per pixel in active matrix panels used for selection purposes, e.g. logical AND for partial update
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- 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
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
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- 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
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- 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
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- 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
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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
- 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
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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
- 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
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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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
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- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
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- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Shift Register Type Memory (AREA)
Description
図1は本発明の第1の実施形態による有機電界発光装置を示すブロック図である。
図3は本発明の第2の実施形態による有機電界発光装置を示すブロック図である。
図5は本発明の第3の実施形態による有機電界発光装置を示すブロック図である。
図7は本発明の第4の実施形態による有機電界発光装置を示すブロック図である。
103,303,503 走査ライン
105,305,505,705 データライン
107,307,507,707 第1電源ライン
109,309,509,708 第2電源ライン
709,809,819 初期化ライン
OLED 有機電界発光素子
MR 逆バイアストランジスタ
ELVDD 正の電源電圧
ELVSS 負の電源電圧
Vr 逆バイアス電源
Vctl 逆バイアス制御信号
Claims (11)
- 第1電源ラインに連結され,走査ラインを介して走査信号を受け,データラインから受信されるデータ信号に相応する駆動電流を形成する画素駆動部と;
前記画素駆動部と第2電源ラインとの間に連結され,前記駆動電流によって発光動作を行う有機電界発光素子と;
前記有機電界発光素子のアノード電極と前記データラインとの間に連結され,前記有機電界発光素子に逆バイアスを印加する第1逆バイアストランジスタと;
前記データラインと逆バイアス電源との間に連結され,前記第1逆バイアストランジスタに前記逆バイアスを供給する第2逆バイアストランジスタと;
を含み,
前記有機電界発光素子のアノード電極とカソード電極との間に所定の電位差を起こすようにし、前記第1逆バイアストランジスタおよび前記第2逆バイアストランジスタは逆バイアス制御信号に応じてオン/オフ動作を行い,前記第1逆バイアストランジスタおよび前記第2逆バイアストランジスタがターンオンされた場合に前記画素駆動部は駆動電流を発生しないことを特徴とする,有機電界発光装置。 - 前記第1逆バイアストランジスタおよび前記第2逆バイアストランジスタがターンオンされた場合,前記逆バイアス電源から前記有機電界発光素子に逆バイアスが印加されることを特徴とする,請求項1に記載の有機電界発光装置。
- 前記有機電界発光素子のアノード電極とカソード電極との間の逆バイアス電圧差は−14V〜−10Vであることを特徴とする,請求項1または2に記載の有機電界発光装置。
- 前記画素駆動部は,
前記データラインに連結され,走査信号に応答してオン/オフ動作を行うスイッチングトランジスタと;
前記スイッチングトランジスタに連結され,前記スイッチングトランジスタを介して受信される前記データ信号を格納するキャパシタと;
前記スイッチングトランジスタと前記第1電源ラインに連結され,前記キャパシタに格納された前記データ信号に相応する前記駆動電流を発生する駆動トランジスタと;
を含むことを特徴とする,請求項3に記載の有機電界発光装置。 - 前記データ信号は電圧で表すことを特徴とする,請求項4に記載の有機電界発光装置。
- 前記画素駆動部は,前記駆動トランジスタと前記有機電界発光素子との間に連結され,発光制御信号に応じてオン/オフ動作を行う発光制御トランジスタをさらに含むことを特徴とする,請求項4または5に記載の有機電界発光装置。
- 前記画素駆動部は,
前記データラインに連結され,前記走査信号に応じてオン/オフ動作を行う第1スイッチングトランジスタと;
前記第1スイッチングトランジスタと前記第1電源ラインとの間に連結され,データ電流に相応する電圧を格納するキャパシタと;
前記第1スイッチングトランジスタと前記第1電源ラインに連結され,前記キャパシタに格納された電圧に相応する駆動電流を発生する駆動トランジスタと;
前記駆動トランジスタと前記データラインとの間に連結され,前記走査信号に応じて前記データ電流を前記データラインに供給する第2スイッチングトランジスタと;
前記駆動トランジスタと前記有機電界発光素子との間に連結され,発光制御信号に応じて前記駆動電流を前記有機電界発光素子に供給する発光制御トランジスタと;
を含むことを特徴とする,請求項3に記載の有機電界発光装置。 - 第1電源ラインに連結され,1つ前の走査信号の制御によって,初期化ラインを介して初期化信号を受け,現在の走査信号に応じてデータラインからデータ信号を受信し,受信されるデータ信号に相応する駆動電流を形成する画素駆動部と;
前記画素駆動部と第2電源ラインとの間に連結され,前記駆動電流によって発光動作を行う有機電界発光素子と;
前記初期化ラインと前記有機電界発光素子のアノード電極との間に連結され,前記有機電界発光素子に逆バイアスを印加する逆バイアストランジスタと;
を含み,
前記有機電界発光素子のアノード電極とカソード電極との間に所定の電位差を起こすようにし、前記逆バイアストランジスタは逆バイアス制御信号に応じてオン/オフ動作を行い,前記逆バイアストランジスタがターンオンされた場合,前記画素駆動部は駆動電流を発生せず、前記有機電界発光素子のアノード電極とカソード電極との間の逆バイアス電圧差は−14V〜−10Vであり、
前記画素駆動部は,
前記初期化ラインに連結され,前記1つ前の走査信号に応じて初期化信号を受信する初期化トランジスタと;
前記データラインに連結され,前記現在の走査信号に応じて前記データラインからデータ信号を受信する第1スイッチングトランジスタと;
前記第1スイッチングトランジスタと前記初期化トランジスタとの間に連結され,ダイオード連結された構造を有し,スレッショルド電圧を補償する補償トランジスタと;
前記補償トランジスタと前記第1電源ラインとの間に連結され,前記初期化信号を受信して初期化動作を行うか,または前記第1スイッチングトランジスタおよび前記補償トランジスタを介して伝達されるデータ信号を格納するキャパシタと;
前記第1電源ラインに連結され,前記キャパシタに格納された前記データ信号に相応する前記駆動電流を発生する駆動トランジスタと;
前記駆動トランジスタと前記有機電界発光素子との間に連結され,発光制御信号に応じて前記駆動電流を前記有機電界発光素子に供給する発光制御トランジスタと;
を含むことを特徴とする,有機電界発光装置。 - 前記逆バイアストランジスタがターンオンされた場合,前記有機電界発光素子には前記初期化ラインを介して逆バイアスが印加されることを特徴とする,請求項8に記載の有機電界発光装置。
- 第1電源ラインに連結され,1つ前の走査信号の制御によって,初期化ラインを介して初期化信号を受け,現在の走査信号に応じてデータラインからデータ信号を受信し,受信されるデータ信号に相応する駆動電流を形成する画素駆動部と;
前記画素駆動部と第2電源ラインとの間に連結され,前記駆動電流によって発光動作を行う有機電界発光素子と;
前記初期化ラインと前記有機電界発光素子のアノード電極との間に連結され,前記有機電界発光素子に逆バイアスを印加する逆バイアストランジスタと;
を含み,
前記有機電界発光素子のアノード電極とカソード電極との間に所定の電位差を起こすようにし、前記逆バイアストランジスタは逆バイアス制御信号に応じてオン/オフ動作を行い,前記逆バイアストランジスタがターンオンされた場合,前記画素駆動部は駆動電流を発生せず、前記有機電界発光素子のアノード電極とカソード電極との間の逆バイアス電圧差は−14V〜−10Vであり、
前記画素駆動部は,
前記初期化ラインに連結され,前記1つ前の走査信号に応じて初期化信号を受信する初期化トランジスタと;
前記データラインに連結され,前記現在の走査信号に応じて前記データラインからデータ信号を受信する第1スイッチングトランジスタと;
前記第1スイッチングトランジスタに連結され,前記データ信号に相応する駆動電流を発生する駆動トランジスタと;
前記駆動トランジスタのゲート端子とドレイン端子との間に連結され,前記現在の走査信号に応じてオン/オフ動作を行う第2スイッチングトランジスタと;
前記駆動トランジスタと前記第1電源ラインとの間に連結され,発光制御信号に応じてオン/オフ動作を行う第3スイッチングトランジスタと;
前記第1電源ラインと前記初期化トランジスタとの間に連結され,前記初期化信号に応じて初期化動作を行い,前記駆動トランジスタの駆動電流形成に要求される前記データ信号を格納するキャパシタと;
前記駆動トランジスタと前記有機電界発光素子との間に連結され,前記発光制御信号に応じて前記駆動電流を前記有機電界発光素子に供給する発光制御トランジスタと;
を含むことを特徴とする,有機電界発光装置。 - 前記逆バイアストランジスタがターンオンされた場合,前記有機電界発光素子には前記初期化ラインを介して逆バイアスが印加されることを特徴とする,請求項10に記載の有機電界発光装置。
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