CN1881397A - Electrooptical device and electronic apparatus - Google Patents

Electrooptical device and electronic apparatus Download PDF

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Publication number
CN1881397A
CN1881397A CN 200610095817 CN200610095817A CN1881397A CN 1881397 A CN1881397 A CN 1881397A CN 200610095817 CN200610095817 CN 200610095817 CN 200610095817 A CN200610095817 A CN 200610095817A CN 1881397 A CN1881397 A CN 1881397A
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electro
color
plurality
optical element
transistor
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CN 200610095817
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Chinese (zh)
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宫泽贵士
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精工爱普生株式会社
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Publication of CN1881397A publication Critical patent/CN1881397A/en

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control 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
    • G09G3/3233Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active 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
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0819Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active 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
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0842Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0852Several 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0262The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/04Maintaining the quality of display appearance
    • G09G2320/043Preventing or counteracting the effects of ageing

Abstract

本发明提供一种电光装置,包括:多条扫描线;多条数据线;多个电光元件;和与所述多条数据线交叉的多条电源线。 The present invention provides an electro-optical apparatus, comprising: a plurality of scan lines; a plurality of data lines; a plurality of electro-optical elements; and said plurality of data lines crossing the plurality of power lines. 所述多个电光元件包括:用于第一色的电光元件、和用于与所述第一色不同的第二色的电光元件。 Said plurality of electro-optical element comprising: the electro-optical element for a first color, said first color and a second color different from the electro-optical element. 所述多条电源线包括:用于向所述用于第一色的电光元件供给第一驱动电压的第一电源线、和用于向所述用于第二色的电光元件供给第二驱动电压的第二电源线。 The plurality of power supply lines comprising: means for said first color to a first power line supplying a first electro-optical element drive voltage, and a second electro-optical element is supplied to the driving means for the second color second power supply line voltage. 所述用于第一色的电光元件和所述用于第二色的电光元件相互邻接,并且沿所述多条数据线中的一条数据线配置。 The electro-optical element for a first color and a second color for the electro-optical elements adjacent to each other, along the data line and a plurality of data lines arranged.

Description

电光装置和电子设备 The electro-optical device and electronic equipment

本申请是申请号为“200510126802.8”,发明名称为“电子电路与驱动方法、电光装置和电子设备”,申请日为2003年8月29日的分案申请。 This application is a number "200510126802.8", entitled "method of driving an electronic circuit, an electro-optical device and electronic equipment", as a divisional application filed on 29 August 2003.

技术领域 FIELD

本发明涉及电子电路、电子电路的驱动方法、电光装置、电光装置的驱动方法、和电子设备。 The present invention relates to an electronic circuit, a driving method of an electronic circuit, an electro-optical device, a driving method of an electro-optical device, and electronic equipment.

背景技术 Background technique

近年来,作为大屏幕显示装置使用的备有多个电光元件的电光装置,追求高精彩化或大画面化,与此相呼应,正在更多地提高备有用于驱动多个电光元件中的各个电光元件的象素电路的有源矩阵驱动型电光装置的对无源驱动型电光装置的比重。 In recent years, as a large-screen device provided with a plurality of the electro-optical device using an electro-optical display elements, the pursuit of high exciting or larger screen, concert with this, is provided with more improved electro-optical elements for driving each of the plurality of the active matrix pixel circuit of passive electro-optical element of the gravity-driven type electro-optical device driven type electro-optical device. 但是,为了实现更进一步的高精彩化或大画面化,需要分别精密地控制电光元件。 However, to achieve further excellent high or a large screen, it is necessary to precisely control the electro-optical element respectively. 因此,必须对构成象素电路的能动元件的特性零散进行补偿。 Thus, the characteristics of the active element must be composed of pixel circuits compensate fragmented.

作为对能动元件的特性零散的补偿方法,例如,已经提出了备有用于补偿特性零散的,包含二极管连接的晶体管的象素电路的显示装置(例如,请参照专利文献1)。 As the characteristics of the active element fragmented compensation method, for example, the display device comprising a pixel circuit provided with a diode-connected transistor for compensating for characteristics of scattered have been proposed (e.g., refer to Patent Document 1).

[专利文献1]日本平成11年公布的11-272233号专利公报可是,对能动元件的特性零散进行补偿的象素电路,一般是由4个以上的晶体管构成的,因此,导致成品率和孔径率的低下。 [Patent Document 1] Japanese published in the 1999 Patent Publication No. 11-272233, however, the characteristics of the active element pixel circuit compensates for the loose, usually four or more of the transistors, thus resulting in yield and pore size rates low.

本发明的一个目的就是要解除上述问题,提供能够削减构成象素电路或单位电路的晶体管的个数的电子电路、电子电路的驱动方法、电光装置、电光装置的驱动方法和电子设备。 An object of the present invention is to release the above-described problems, there is provided an electronic circuit can reduce the number of transistors constituting the circuit or unit pixel circuit, the driving method of an electronic circuit, an electro-optical device, a driving method of an electro-optical device and electronic equipment.

发明内容 SUMMARY

本发明的第1电子电路的特征是它备有具有多个包含备有第1端子、第2端子和第1控制用端子的第1晶体管、备有第3端子、第4端子和第2控制用端子,上述第3端子与上述第1控制用端子连接的第2晶体管、备有第1电极和第2电极,上述第1电极与上述第1控制用端子连接的电容元件、和备有第5端子和第6端子,上述第5端子与上述第2电极连接的第3晶体管的单位电路,上述第4端子与上述多个单位电路的其它的单位电路的上述第4端子一起与第1电源线连接,将上述第1电源线的电位设定在多个电位上,或者控制上述第1电源线与驱动电压的电切断和电连接的控制电路。 Wherein the first electronic circuit equipped with the present invention is that it has a fourth control terminal and the second with the plurality comprising a first terminal, a second terminal and a control terminal of the first transistor, with the third terminal, terminal, the third terminal of the second transistor and a first control terminal connected with the first electrode and the second electrode, the first capacitance element electrode and the first control terminal connected with the first and the fourth terminal of other unit circuit terminal 5 and terminal 6, the unit circuit of the third transistor and the fifth terminal connected to the second electrode, the fourth terminal and the plurality of unit circuits together with the first power supply line is connected, the potential of the first power line is set at a plurality of potential, or to control the first power line and the driving voltage control circuit electrically disconnected and connected electrically.

在上述电子电路中,既可以使上述第2端子与上述第1电源线连接,也可以使上述第2端子与和上述第1电源线不同的第2电源线连接。 In the electronic circuit, either so that the second terminal connected to said first power source line, may be made the second terminal connected to the second power supply line and the first power source line different. 本发明的第2电子电路的特征是它备有具有多个包含备有第1端子、第2端子和第1控制用端子的第1晶体管、备有第3端子、第4端子和第2控制用端子,上述第3端子与上述第1控制用端子连接的第2晶体管、备有第1电极和第2电极,上述第1电极与上述第1控制用端子连接的电容元件、和备有第5端子和第6端子,上述第5端子与上述第2电极连接的第3晶体管的单位电路,上述第4端子与上述多个单位电路的其它的单位电路的上述第4端子一起与第1电源线连接,上述第2端子与第2电源线连接,将上述第1电源线的电位设定在多个电位上,或者控制上述第1电源线与驱动电压的电切断和电连接的控制电路。 A second electronic circuit according to the present invention is that it comprises a plurality equipped with having a first terminal, a second terminal and a control terminal of the first transistor, with the third terminal, a fourth terminal and a second control terminal, the third terminal of the second transistor and a first control terminal connected with the first electrode and the second electrode, the first capacitance element electrode and the first control terminal connected with the first and the fourth terminal of other unit circuit terminal 5 and terminal 6, the unit circuit of the third transistor and the fifth terminal connected to the second electrode, the fourth terminal and the plurality of unit circuits together with the first power supply line is connected, the second terminal is connected to the second power line, the potential of the first power line is set at a plurality of potential, or to control the first power line and the driving voltage control circuit electrically disconnected and connected electrically.

根据上述电子电路那样的构成,能够削减构成上述单位电路的晶体管数量。 An electronic circuit configured as described above according, reduces the number of transistors constituting the unit circuit.

在上述电子电路中,最好上述第2控制用端子与上述第3端子连接。 In the electronic circuit, preferably, the second control terminal connected to said third terminal.

例如,最好分别将上述第3端子和上述第2控制用端子作为漏极和栅极。 For example, each is preferably the above third terminal and said second control terminal as the drain and the gate. 因此,能够将上述第2晶体管用作补偿上述第1晶体管的阈值电压的晶体管。 Accordingly, the second transistor can be used as a threshold voltage compensation transistor of the first transistor.

在上述电子电路中,最好在上述各个单位电路中不包含上述第1晶体管、上述第2晶体管和上述第3晶体管以外的晶体管。 In the electronic circuit, is preferably not included in the first transistor circuit in each of the above units, the transistors other than the second transistor and the third transistor.

因此,能够一面补偿上述第1晶体管的阈值电压,一面削减上述单位电路的晶体管数量。 Accordingly, it is possible to compensate the threshold voltage of the side of the first transistor, to reduce the number of transistors on one side of the unit circuit.

在上述电子电路中,最好上述第1晶体管和上述第2晶体管的导电型是相同的。 In the electronic circuit, preferably, the first conductivity type transistor and the second transistor are the same.

如果根据这点,则通过调整第2晶体管的阈值电压,能够容易地补偿第1晶体管的阈值电压。 If according to this point, the threshold voltage adjustment by the second transistor, can easily compensate the threshold voltage of the first transistor.

在上述电子电路中,电子元件也可以与上述第1端子连接。 In the electronic circuit, the electronic components may be connected to the first terminal.

在上述电子电路中,上述电子元件,例如,是电流驱动元件和电光元件、电阻元件、二极管、存储元件等。 In the electronic circuit, the electronic element, e.g., a current driven element and the electro-optical element, a resistor element, a diode, a memory element and the like.

在上述电子电路中,上述控制电路是备有第7端子和第8端子的第4晶体管,上述第7端子通过上述第1电源线与上述第4端子连接,并且上述第8端子与上述驱动电压连接。 In the electronic circuit, the control circuit 7 is provided with a first terminal and a second terminal of the fourth transistor 8, the seventh terminal connected to said fourth terminal via the first power line, and the first terminal of the driving voltage 8 connection.

如果根据这点,则能够容易地构成控制电路。 If according to this point, it is possible to easily configure a control circuit.

在上述电子电路中,上述第2电源线也可以与上述驱动电压电连接。 In the electronic circuit, the second power supply line may be connected to the driving voltage.

在上述电子电路中,最好设定上述第1晶体管的阈值电压不比上述第2晶体管的阈值电压低。 In the electronic circuit, it is desirable to set the threshold voltage of the first transistor than the low threshold voltage of the second transistor.

如果根据这点,则能够确实地补偿第1晶体管的阈值。 If according to this point, it is possible to reliably compensate for the threshold of the first transistor.

又,即将当用上述第2晶体管对上述第1晶体管的阈值进行补偿时,也能够将上述第1晶体管设定在非导通状态。 And, when about to compensate for the threshold of the first transistor with the second transistor, it is possible to set the first transistor in a non-conducting state.

相反地,在上述电子电路中,也可以将上述第1晶体管的阈值电压设定在上述第2晶体管的阈值电压以上。 In contrast, in the electronic circuit, the threshold voltage may be the first transistor is set to a threshold voltage of the second transistor above.

这时,通过只用上述第2晶体管对上述第1晶体管的阈值电压进行补偿,能够使上述第2晶体管处于接通状态。 In this case, by using only the second transistor the threshold voltage of the first transistor is compensated, it is possible to make the second transistor in the on state.

本发明的第3电子电路的特征是它是包含多条第1信号线、多条第2信号线、多条电源线和多个单位电路的电子电路,上述多个单位电路中的各个单位电路包含备有第1端子、第2端子和第1控制用端子的第1晶体管、备有第3端子、第4端子和第2控制用端子,上述第3端子与上述第1控制用端子连接的第2晶体管、备有第1电极和第2电极,上述第1电极与上述第1控制用端子连接的电容元件、和备有第5端子、第6端子和第3控制用端子,上述第5端子与上述第2电极连接的第3晶体管,上述第2控制用端子与上述第3端子连接,上述第3控制用端子与上述多条第1信号线中对应的第1信号线连接。 A third electronic circuit according to the present invention is that it comprises a plurality of first signal lines, a plurality of second signal lines, the electronic circuit and a plurality of power supply lines of the plurality of unit circuits, each unit circuit of the plurality of unit circuits comprising a terminal provided with a first, a second terminal and a control terminal of the first transistor, with the third terminal, a fourth terminal and a second control terminal, said third terminal connected to the control terminal of the first a second transistor, provided with a first electrode and the second electrode, the first capacitance element electrode and the first control terminal is connected, and with a fifth terminal, a sixth terminal, and a third control terminal, the first 5 terminal of the third transistor connected to the second electrode, connected to the second control terminal and the third terminal, the third control signal line connected to the first terminal and the first plurality of signal lines corresponding. 在上述电子电路中,最好备有上述第4端子与上述多个单位电路的其它单位电路的上述第4端子一起与第1电源线连接,上述第2端子与第2电源线连接,将上述第1电源线的电位设定在多个电位上,或者控制上述第1电源线与驱动电压的电切断和电连接的控制电路。 In the electronic circuit, preferably, with the fourth terminal of the fourth terminal of the other unit circuits with a plurality of unit circuits connected to a first power source line, the second terminal and the second power line connected to the above-described potential of the first power source line is set at a plurality of potentials, or for controlling the power supply line and a first driving voltage and off electrically connected to the control circuit.

如果根据这点,则能够削减构成上述单位电路的晶体管数量。 If according to this point, it is possible to reduce the number of transistors constituting the unit circuit.

在上述电子电路中,最好上述第1晶体管和上述第2晶体管的导电型是相同的。 In the electronic circuit, preferably, the first conductivity type transistor and the second transistor are the same.

如果根据这点,则通过调整第2晶体管的阈值电压能够容易地补偿第1晶体管的阈值电压。 If according to this point, the threshold voltage of the second transistor adjustment can be easily compensated by the threshold voltage of the first transistor.

在上述电子电路中,电子元件也可以与上述第1端子连接。 In the electronic circuit, the electronic components may be connected to the first terminal.

在上述电子电路中,上述电子元件,例如,是电流驱动元件和电光元件、电阻元件、二极管、存储元件等。 In the electronic circuit, the electronic element, e.g., a current driven element and the electro-optical element, a resistor element, a diode, a memory element and the like.

相反地在上述电子电路中,也可以将上述第1晶体管的阈值电压设定在上述第2晶体管的阈值电压以下。 Conversely the electronic circuit, the threshold voltage may be the first transistor is set at a threshold voltage of the second transistor or less.

本发明的第4电子电路的特征是在备有多个单位电路的电子电路中,备有上述多个单位电路中的各个单位电路包含将信号作为电荷保持的保持元件、控制到上述保持元件的上述信号的传输的开关晶体管、根据在上述保持元件中保持的电荷设定导通状态的驱动晶体管、和在将上述信号传输到上述保持元件前将上述驱动晶体管的控制用端子设定在所定电位上的调整用晶体管,将驱动电压提供给上述多个单位电路中的至少2个单位电路的上述调整用晶体管的控制电路。 4 wherein the electronic circuit of the present invention is an electronic circuit provided with a plurality of unit circuits, with the plurality of unit circuits each unit circuit comprising a holding member holding the signal as a charge control to the holding element the signal transmitted from the switching transistor, the conduction state is set according to the charge held by the holding element driving transistor, and the signal transmitted in the above-described holding member to the front of the control terminal of the driving transistor is set at a predetermined potential adjusting the transistor, the driving voltage to the plurality of unit circuits of the adjustment of the at least two unit circuits of the control circuit transistor.

在上述电子电路中,电子元件也可以与上述驱动晶体管连接。 In the electronic circuit, the electronic components may be connected to the driving transistor.

在上述电子电路中,上述电子元件,例如,是电流驱动元件和电光元件、电阻元件、二极管、存储元件等。 In the electronic circuit, the electronic element, e.g., a current driven element and the electro-optical element, a resistor element, a diode, a memory element and the like.

本发明的电子电路的驱动方法的特征是它是备有包含备有第1端子、第2端子和第1控制用端子的第1晶体管、备有第3端子和第4端子,上述第3端子与上述第1控制用端子连接的第2晶体管、备有第1电极和第2电极,上述第1电极与上述第1控制用端子连接的电容元件的多个单位电路的电子电路的驱动方法,包含使将上述多个单位电路的上述各个第3端子与所定电位电连接,并且将上述第1控制用端子设定在第1电位上的第1步骤、和在使上述第3端子从上述所定电位电切断的状态中,通过使上述第2电极的电位从第2电位变化到第3电位使上述第1控制用端子从上述第1电位变化的第2步骤。 A method of driving an electronic circuit according to the present invention is characterized in that it is equipped with comprises a first terminal, a second terminal and a control terminal of the first transistor, with the third terminal and a fourth terminal, the third terminal the second transistor and a first control terminal connected with a first electrode and a second electrode, the driving method of an electronic circuit of the plurality of unit circuits and the first electrode of the capacitor element 1 is connected to a control terminal, comprising contacting each of the foregoing third terminal with a predetermined potential for electrically connecting the plurality of unit circuits, and the first controlling terminal sets a first step in the potential of the first 1, and making said third terminal from a predetermined above potential electrically disconnected state, by changing the potential of the second electrode from the second potential to the third potential so that the first control terminal from the second step of the first potential change.

如果根据这点,则能够一面补偿第1晶体管的阈值电压,一面削减构成上述电子电路的晶体管数量。 If according to this point, it is possible to compensate the threshold voltage of one side of the first transistor, to reduce the number of transistors constituting the side of the electronic circuit.

在上述电子电路的驱动方法中,至少进行上述第1步骤的期间在将上述第2电极的电位设定在上述第2电位上的状态中进行。 During the above-described method of driving an electronic circuit, at least the first step is carried out in the potential of the second electrode set on said second potential state.

此外,在上述电子电路的驱动方法中,所谓的“使上述第3端子与所定电位电连接”指的是,例如,通过上述第4端子使电流流入上述第3端子的状态而言,所谓的“使上述第3端子与所定电位电切断”指的是,例如,通过上述第4端子不使电流流入的状态而言。 Further, in the method of driving the electronic circuit, a so-called "so that the third terminal with a predetermined electric potential is connected" refers to, for example, via the fourth terminal that the current flowing state of the third terminal, the so-called "so that the third terminal and a predetermined electric potential cut" refers, for example, via the fourth terminal is not a state in terms of electric current flowing.

本发明的第1电光装置备有多条数据线、多条扫描线、和多个单位电路,其特征是:所述多个单位电路包含第1端子、第2端子和第1控制用端子的第1晶体管、与上述第1端子连接的电光元件、备有第3端子和第4端子,上述第3端子与上述第1控制用端子连接的第2晶体管、备有第1电极和第2电极,上述第1电极与上述第1控制用端子连接的电容元件、和备有第5端子、第6端子和第3控制用端子,上述第5端子与上述第2电极电连接的第3晶体管;上述第4端子与上述多个单位电路的其它单位电路的上述第4端子一起与第1电源线连接,上述第3控制用端子与上述多条扫描线中的对应的扫描线连接,上述第6端子与上述多条数据线中对应的数据线连接,具有将上述第1电源线的电位设定在多个电位上、或者控制上述第1电源线与驱动电压的电切断和电连接的控制电路。 A first electro-optical device according to the present invention comprises a plurality of data lines, a plurality of scan lines, and a plurality of unit circuits, wherein: the plurality of unit circuits comprises a first terminal, a second terminal and a control terminal a first transistor, the electro-optic element with a first terminal connected with the third terminal and a fourth terminal, the third terminal of the second transistor and a first control terminal connected with the first electrode and the second electrode , the first electrode and the first capacitance element connected to a control terminal, and with a fifth terminal, a sixth terminal of the third transistor and the third control terminal, the fifth terminal and the second electrodes are electrically connected; the fourth terminal of the fourth terminal of the other unit circuits with a plurality of unit circuits connected to a first power source line, the third control connected to said plurality of scan lines corresponding to the scanning line terminals, the first 6 terminal connected to said plurality of data lines in the corresponding data line, with the potential of the first power line is set at a plurality of potential, or to control the first power line and the driving voltage control circuit electrically disconnected and connected electrically .

如果根据上述电光装置,则一面补偿第1晶体管的阈值电压,一面削减构成象素电路的晶体管数量。 According to the above electro-optical device, the side of the first threshold voltage compensation transistor, the side to reduce the number of transistors constituting the pixel circuit.

这能够提高一个象素的孔径率和提高制造的成品率。 This can improve the aperture ratio of a pixel and improve the production yield.

在上述电光装置中,最好上述第2控制用端子与上述第3端子连接。 In the above-described electro-optical device, preferably, the second control terminal connected to said third terminal.

在上述电光装置中,上述控制电路是备有第7端子和第8端子的第4晶体管,上述第7端子通过上述第1电源线与上述第4端子连接,并且上述第8端子与上述驱动电压连接。 In the above-described electro-optical device, the control circuit 7 is provided with a first terminal and a second terminal of the fourth transistor 8, the seventh terminal connected to said fourth terminal via the first power line, and the first terminal of the driving voltage 8 connection.

如果根据这点,则能够简单地构成控制电路。 If according to this point, the control circuit can be configured simply.

在上述电光装置中,最好在上述各个单位电路中,没有上述第1晶体管、上述第2晶体管和上述第3晶体管以外的晶体管。 In the above-described electro-optical device, preferably in the above-described respective unit circuits, not the first transistor, the second transistor other than the transistor and the third transistor.

如果根据这点,则能够提供具有高孔径率的电光装置。 If according to this point, it is possible to provide an electro-optical device having a high aperture ratio.

在上述电光装置中,上述第1晶体管和上述第2晶体管的导电型是相同的。 In the above-described electro-optical device, the first conductivity type transistor and the second transistor are the same.

如果根据这点,则能够确实地补偿第1晶体管的阈值电压。 If according to this point, it is possible to reliably compensate for the threshold voltage of the first transistor.

在上述电光装置中,最好将上述第1晶体管的阈值电压设定得不比上述第2晶体管的阈值电压低。 In the above-described electro-optical device, preferably a threshold voltage of the first transistor is set to be not lower than the threshold voltage of the second transistor.

具体地说,也可以为了使上述第1晶体管的栅极长度不比在象素内对应的上述第2晶体管的栅极长度短而进行设定。 Specifically, it is possible to make the first transistor the gate length is shorter gate length than the second transistor of the corresponding pixel in the set.

或者,也可以为了使上述第1晶体管的栅极绝缘膜不比在象素内对应的上述第2晶体管的栅极绝缘膜薄而进行设定。 Alternatively, setting may be performed to the gate insulating film of the first transistor is a thin gate insulating film of the second transistor than in the corresponding pixel.

或者,也可以通过调整注入沟道的杂质浓度,使上述第1晶体管的阈值电压不比在象素内对应的上述第2晶体管的阈值电压低而进行设定。 Alternatively, by adjusting the impurity concentration of the channel implantation, the threshold voltage of the first transistor is a low threshold voltage than the second transistor of the corresponding pixel in the set.

最好上述第1晶体管在饱和区域内工作。 Preferably said first transistor operates in the saturation region.

如果根据这点,则能够确实地补偿设置在象素电路中的第1晶体管的阈值电压。 If according to this point, it is possible to reliably compensate for the threshold voltage is provided in the pixel circuit of the first transistor. 从而,能够高精度地控制电光元件的亮度灰度等级。 Thus, it is possible to accurately control the luminance gradation of the electro-optical element.

相反地在上述电光装置中,也可以将上述第1晶体管的阈值电压设定在上述第2晶体管的阈值电压以下。 Conversely in the above electro-optical device, it may be a threshold voltage of the first transistor is set at a threshold voltage of the second transistor or less.

在上述电光装置中,上述第2电源线也可以与上述驱动电压电连接。 In the above-described electro-optical device, the second power supply line may be connected to the driving voltage.

在上述电光装置中,上述电光元件例如是EL元件。 In the above-described electro-optical device, the electro-optical elements such as an EL element.

在上述电光装置中,最好沿上述扫描线,配置同色的电光元件。 In the above-described electro-optical device, preferably along the scanning lines, the electro-optical element is arranged in the same color.

本发明的第1电光装置的驱动方法的特征是它是与多条扫描线和多条数据线的交叉部分对应地配置包含备有第1端子、第2端子和第1控制用端子的第1晶体管、与上述第1端子连接的电光元件、备有第3端子和第4端子,上述第3端子与上述第1控制用端子连接的第2晶体管、和备有第1电极和第2电极,上述第1电极与上述第1控制用端子连接的电容元件的多个单位电路的电光装置的驱动方法,它包含在上述多个单位电路中,通过上述第4端子和上述第2晶体管的沟道使包含第3控制用端子与上述多条扫描线中的1条扫描线连接的第3晶体管的一连串单位电路的上述第3端子与所定电位电连接,将上述第1控制用端子设定在第1电位上的第1步骤、和将使上述第3晶体管处于接通状态的扫描信号供给上述一连串单位电路的上述第3控制用端子,使上述第3晶体管处于接通状态与上述 Wherein the driving method of the first electro-optical device according to the present invention is that it is a plurality of scanning lines and a plurality of data lines arranged corresponding to the intersecting portion with a first terminal comprises a second terminal and a control terminal of the first transistor, the electro-optic element with a first terminal connected with the third terminal and the fourth terminal, a second terminal of said third transistor and the control terminal connected to the first, and provided with a first electrode and a second electrode, the method of driving a plurality of unit circuits of the first electrode of the capacitor element and the first control terminal connected to the electro-optical device, which is included in the plurality of unit circuits, via the fourth terminal and a channel of the second transistor the third terminal and the potential level so that contains the third control third transistor terminal connected to a scanning line of the plurality of scan lines in a series of unit circuits a predetermined connection, the first control terminal is set in the first said third control signal a first scanning step of the potential, and the third transistor will in oN state is supplied to the series circuit of the terminal unit, so that the third transistor in the on state as described above 条数据线对应的数据线电连接后,通过将经过上述对应的数据线和上述第3晶体管供给的数据信号加在上述第2电极上,使上述第2电极的电位从第2电位变化到第3电位,使上述第1控制用端子的电位从上述第1电位变化的第2步骤,上述第2步骤中,为了使在上述第2电极上加上上述数据信号的期间和使上述一连串单位电路的上述第3端子从上述所定电位电切离的期间至少一部分重合而进行设定。 After the data lines corresponding to the data line is electrically connected, by via a data signal of the corresponding data line and the third transistor is supplied applied to the second electrode, the potential of the second electrode changes from the second potential to the second 3 potential, and the potential of the first control terminal from the second step of the first potential change of the second step, in order to make the second electrode together with the data signal period and the series of unit circuits so that the from the third terminal during at least a part cut off a predetermined electric potential and setting the overlap.

本发明的第2电光装置的驱动方法与多条扫描线和多条数据线的交叉部分对应地配置包含备有第1端子、第2端子和第1控制用端子的第1晶体管、与上述第1端子连接的电光元件、备有第3端子和第4端子,上述第3端子与上述第1控制用端子连接的第2晶体管、和备有第1电极和第2电极,上述第1电极与上述第1控制用端子连接的电容元件的多个单位电路,在上述多个单位电路中,包含使第3控制用端子与上述多条扫描线中的1条扫描线连接的第3晶体管的一连串单位电路的上述第4端子与全部多个第1电源线中的1条第1电源线电连接,其特征是:包含通过使上述一连串单位电路的上述第4端子与所定电位电连接,将上述第1控制用端子设定在第1电位的第1步骤、和将使上述第3晶体管处于接通状态的扫描信号供给上述一连串单位电路的上述第3控制用端子,使上述第3晶体管 Corresponding to the intersection of a method of driving an electro-optical device according to the present invention and the plurality of scanning lines and a plurality of data lines arranged with a first terminal comprises a second terminal and a control terminal of the first transistor, and the first the electro-optical element 1 is connected to the terminal, with a third terminal and a fourth terminal, a second terminal of said third transistor and the control terminal connected to the first, and provided with a first electrode and a second electrode, the first electrode and the first control unit with a plurality of circuit elements connected to a terminal of the capacitor, the plurality of unit circuits, comprising a third transistor of the third control terminal connected to a scanning line of the plurality of scanning lines connected to a series of the fourth terminal of the unit circuit is connected to a first power supply line 1 all the plurality of power supply lines, characterized in that: containing by the above-described series of unit circuits of the fourth terminal predetermined potential is electrically connected to the above-described the third the first control signal controls the scan in the first step of the first potential, the third transistor and will in oN state is supplied to the set terminal of the series circuit terminal unit, so that the third transistor 于接通状态与上述多条数据线对应的数据线电连接后,通过将经过上述对应的数据线和上述第3晶体管供给的数据信号加在上述第2电极上,使上述第2电极的电位从第2电位变化到第3电位,使上述第1控制用端子的电位从上述第1电位变化的第2步骤,在上述第2步骤中,为了使在上述第2电极上加上上述数据信号的期间和上述一连串单位电路的上述第4端子从上述所定电位电切离的期间至少一部分重合而进行设定。 After connected to said plurality of data lines electrically to the data lines corresponding to the ON state by the data signal via said corresponding data line and said third transistor is applied to the supply of the second electrode, so that the potential of the second electrode changes from the second potential to the third potential, the potential of the first control terminal from the second step of the first potential change, in the second step, in order so that the data signal is applied on the second electrode said second and said fourth terminal during at least a portion of the series of unit circuits overlap during a predetermined electric potential and excised from the set.

在上述电光装置的驱动方法中,至少进行上述第1步骤的期间在将上述第2电极的电位设定在上述第2电位上的状态中进行。 During the above-described driving method for an electro-optical apparatus, at least the first step is carried out in the potential of the second electrode set on said second potential state.

因此,能够将上述第1控制用端子的电位正确地设定在与上述数据信号对应的电位上。 Accordingly, the first control can be correctly set in the data signal with the potential corresponding to the potential of the terminal.

本发明的第1电子设备的特征是安装上述的电子电路。 Wherein the first electronic device of the present invention is to install the above-described electronic circuit.

本发明的第2电子设备的特征是安装上述的电光装置。 A second electronic device of the present invention is an electro-optical device is mounted above.

在上述发明中,第1晶体管和驱动晶体管、第1和第2端子、第1控制用端子和驱动晶体管的控制用端子,作为一个例子,在后述的实施形态的图3所示的象素电路20中,分别与驱动晶体管Trd、驱动晶体管Trd的漏极和源极、驱动晶体管Trd的栅极对应。 In the above invention, the first transistor and the driving transistor, the first and second terminal, the first control terminal and the control terminal of the driving transistor, as an example, the pixel shown in the embodiment of FIG. 3 described later circuit 20, respectively, and the drive transistor Trd, and the drain of the drive transistor Trd source, corresponding to the gate of the driving transistor Trd.

又,第2晶体管和调整用晶体管、第3和第4端子、第2控制用端子,作为一个例子,在本实施形态的图3所示的象素电路20中,分别作为调整用晶体管Trc、驱动晶体管。 And, adjusting the second transistor and the transistor, the third and fourth terminal, the second control terminal, as an example, in the present embodiment shown in FIG. 3, the pixel circuit 20, respectively, as adjusting the Trc transistor, a driving transistor.

进一步,第3晶体管、第5端子、第6端子、第3控制用端子,作为一个例子,在本实施形态的图3所示的象素电路20中,分别与开关晶体管Trs、开关驱动晶体管Trs的源极(与电容C1连接的端子)、开关驱动晶体管Trs的漏极(与数据线Xm连接的端子)、开关驱动晶体管Trs的栅极对应。 Further, the third transistor, a fifth terminal, a sixth terminal, the third control terminal, as an example, in the present embodiment shown in FIG. 3, the pixel circuit 20, respectively, the switching transistor Trs, a drive switching transistor Trs a source (terminal connected to the capacitor C1), the switching transistor Trs driving drain (terminal connected to the data line Xm), corresponding to the switching gate of the driving transistor Trs.

附图说明 BRIEF DESCRIPTION

图1是表示本实施形态的有机EL显示器的电路构成的方框电路图。 FIG. 1 is a block circuit diagram showing an organic EL display circuit of the present embodiment is constituted.

图2是表示第1实施形态的有源矩阵部分和数据线驱动电路的内部电路构成的方框电路图。 FIG 2 is a block circuit diagram showing an internal circuit of the first embodiment of the active matrix driving circuit portion and a data line constituted.

图3是第1实施形态的象素电路的电路图。 FIG 3 is a circuit diagram of pixel circuits according to the first embodiment.

图4是用于说明第1实施形态的象素电路的驱动方法的定时图。 FIG 4 is a timing chart for explaining a method of driving a pixel circuit of the first embodiment.

图5是表示第2实施形态的有源矩阵部分和数据线驱动电路的内部电路构成的方框电路图。 FIG 5 is a block circuit diagram showing an internal circuit of the second embodiment of the active matrix driving circuit portion and a data line constituted.

图6是表示用于说明第3实施形态的能动型个人计算机的构成的斜视图。 FIG 6 is a perspective view showing a configuration of a third embodiment of an active-type personal computer for explaining.

图7是表示用于说明第3实施形态的便携式电话的构成的斜视图。 7 is a perspective view showing a configuration of a portable telephone for explaining the third embodiment. 其中:C1——作为电容元件或保持元件的电容La——第1电极 Wherein: C1-- storage capacitor as a capacitive element or elements of the first electrode La--

Lb——第2电极Trd——作为第1晶体管的驱动晶体管Trc——作为第2晶体管的驱动晶体管Trs——作为第3晶体管的开关晶体管Q——作为第4晶体管的控制用晶体管Vdata——作为信号的数据电压Vdd——驱动电压Yn——扫描线Xm——数据线10——作为电光装置的有机EL显示器20——作为单位电路的象素电路21——作为电子元件或电流驱动元件的有机EL元件50——作为电子设备的能动型个人计算机60——作为电子设备的便携式电话具体实施方式(第1实施形态)下面,我们按照图1~4说明使本发明具体化的第1实施形态。 Lb-- Trd-- as the second electrode of the first transistor, the driving transistor as a driving transistor Trc-- second transistor as a switching transistor Trs-- third transistor of a fourth transistor Q-- control transistor Vdata-- a driving voltage as a data voltage Vdd-- Yn-- scanning line 10-- Xm-- data line signal as an organic EL display as a pixel electro-optical device 20-- 21-- circuit unit circuit as an electronic component or a current-driven element 50-- organic EL element as an active electronic device 60-- type personal computer as a portable telephone particular embodiment of the electronic device (the first embodiment) next, we make embodying the present invention according to a first explanatory view 1-4 embodiment. 图1是表示作为电光装置的有机EL显示器的电路构成的方框电路图。 FIG. 1 is a block circuit diagram showing an organic EL display as an electro-optical device circuit configuration. 图2是表示有源矩阵部分和数据线驱动电路的内部电路构成的方框电路图。 FIG 2 is a block circuit diagram showing an internal circuit of the active matrix driving circuit portion and the data line constituted. 图3是象素电路的电路图。 FIG 3 is a circuit diagram of a pixel circuit. 图4是用于说明象素电路的驱动方法的定时图。 FIG 4 is a timing chart for explaining a driving method of the pixel circuit.

有机EL显示器10,如图1所示,备有信号生成电路11、有源矩阵部分12、扫描线驱动电路13、数据线驱动电路14和电源线控制电路15。 The organic EL display 10, as shown, with the signal generating circuit 11, an active matrix portion 12, a scanning line driving circuit 13, a data line driving circuit 14 and the power-line control circuit 151.

有机EL显示器10的信号生成电路11、扫描线驱动电路13、数据线驱动电路14和电源线控制电路15也可以分别由独立的电子部件构成。 The organic EL display 11 of the signal generating circuit 10, the scanning line driving circuit 13, a data line driving circuit 14 and the power-line control circuit 15 may be constituted by separate each electronic component. 例如,信号生成电路11、扫描线驱动电路13、数据线驱动电路14和电源线控制电路15也可以分别由1块芯片的半导体集成电路装置构成。 For example, the signal generating circuit 11, the scanning line driving circuit 13, a data line driving circuit 14 and the power-line control circuit 15 may be respectively formed of a semiconductor integrated circuit device chip. 又信号生成电路11、扫描线驱动电路13、数据线驱动电路14和电源线控制电路15也可以全部或者一部分由可编程的IC芯片构成,其功能由写入IC芯片的程序软件地实现。 And signal generating circuit 11, the scanning line driving circuit 13, a data line driving circuit 14 and the power-line control circuit 15 may be all or part of which function is performed by a programmable IC chip software writes to the IC chip.

信号生成电路11,根据来自图中未画出的外部装置的图象数据作成用于在有源矩阵部分12上显示图象的扫描控制信号和数据控制信号。 Signal generating circuit 11. The image data from an external apparatus not shown in the figures for displaying a scanned image creating control signals and data control signals on the active matrix portion 12. 而且,信号生成电路11将扫描控制信号输出到扫描线驱动电路13,并且将数据控制信号输出到数据线驱动电路14。 Moreover, the scanning signal generating circuit 11 outputs a control signal to the scanning line driving circuit 13, and outputs the data control signal to the data line driving circuit 14. 进一步,信号生成电路11向电源线控制电路15输出定时控制信号。 Further, a control signal generating circuit 11 to the power supply line circuit 15 outputs a timing control signal.

有源矩阵部分12,如图2所示,具有将作为具有作为发光层由有机材料构成的电子元件或电光元件的有机EL元件21的多个单位电路的象素电路20矩阵状地配设的电子电路。 The active matrix portion 12, as shown in FIG. 2, the pixel circuit having a plurality of unit circuits having a layer of an organic EL element as a light emitting element or electronic electro-optical element formed of an organic material 20, 21 are disposed in a matrix form electronic circuit. 即,将象素电路20配设在与沿列方向延伸的M条数据线Xm(m=1~M;m为整数)、和沿行方向延伸的N条扫描线Yn(n=1~n;n为整数)的交叉部分对应的位置上。 That is, the pixel circuit 20 disposed at the M data lines Xm extending in the column direction (m = 1 ~ M; m is an integer), N scan lines Yn extending in the row direction and (n = 1 ~ n ; positions corresponding to intersections of n is an integer) on.

又,象素电路20与沿它的行方向延伸的第1电源线L1和第2电源线L2连接。 Further, its 20 extending along the row direction of the first power line L1 and the second pixel circuit power supply line L2. 第1和第2电源线L1、L2分别与设置在有源矩阵部分12的右端侧的象素电路20沿列方向延伸的电压供给线VL连接。 First and second power supply lines L1, L2 are provided in the voltage supply line 20 in the column direction of the pixel circuit 12 side of the right end portion of the active matrix extending VL connection. 又,配置并形成在象素电路20内的后述的晶体管通常是由TFT(薄膜晶体管)构成的。 Further, the transistor is formed and arranged in the later-described pixel circuit 20 is typically a TFT (Thin Film Transistor) composed.

扫描线驱动电路13,根据从信号生成电路11输出的扫描控制信号,从设置在有源矩阵部分12中的N条扫描线Yn中,选择1条扫描线,将扫描信号供给这条选出的扫描线。 Scanning line drive circuit 13, the scan control signal outputted from the generating circuit 11, provided on the active matrix from the N scanning lines in the portion 12 Yn, select one scan line in accordance with the scan signal supplied to this selected scan lines.

数据线驱动电路14备有多个单一线驱动器23。 A data line driving circuit 14 provided with a plurality of single line drivers 23. 各个单一线驱动器23分别与设置在有源矩阵部分12中的对应的数据线Xm连接。 Each of the single line driver 23 are respectively provided in the active matrix portion 12 corresponding to the data lines Xm are connected. 单一线驱动器23分别地,根据从信号生成电路11输出的数据控制信号,生成作为信号的数据电压Vdata。 Single line driver 23, respectively, in accordance with a control signal generating circuit 11 outputs the data from the signal, generates a data signal voltage Vdata. 又,单一线驱动器23通过数据线Xm将该生成的数据电压Vdata输出到象素电路20。 Further, the single line drivers 23 generate data line Xm by the data voltage Vdata to the pixel output circuit 20. 象素电路20,与该输出的数据电压Vdata相应,设定相同象素电路20的内部状态,对流过各有机EL元件21的驱动电流Ie1(请参照图3)进行控制,能够控制有机EL元件21的亮度灰度等级。 The pixel circuit 20, the data voltage Vdata outputted from the respective, set the same state of the internal circuit 20 of the pixel, the driving current Ie1 flowing through each organic EL element 21 (refer to FIG. 3) controls the organic EL element can be controlled 21 is a luminance gradation. 又,数据线驱动电路14的各个单一线驱动器23,在后述的数据写入期间T1,在供给数据电压Vdata前将与从电压供给线VL供给的驱动电压Vdd相同电位的偏压供给各象素电路20。 Tl, each supplied with the same potential as the driving voltage Vdd supplied to the voltage-supply line VL bias voltage Vdata supplied to the data before and during each single line driver 14 is a data line driving circuit 23, the data written later 20 pixel circuit.

电源线控制电路15,通过电源线控制线F与后述的控制用晶体管Q的栅极连接。 Power-line control circuit 15, controlled by said power supply line and a control line F after transistor Q connected to the gate. 电源线控制电路15,根据来自信号生成电路11的定时控制信号,在与扫描信号完全或一部分时间重合的期间,生成并供给使控制用晶体管Q处于接通状态的电源线控制信号。 Power-line control circuit 15, in accordance with a control signal from the timing signal generating circuit 11, the scanning signal during a full or part time coincident, generates and supplies control transistor Q so that the ON state of the power-line control signal. 而且,当控制用晶体管Q处于接通状态时,通过第1电源线L1将驱动电压Vdd供给象素电路20。 Further, when the control transistor Q is in the ON state, the first power line L1 to the pixel driving voltage Vdd is supplied to the circuit 20.

下面我们说明构成这样构成的有机EL显示器10的有源矩阵部分12的象素电路20。 Here we illustrate the configuration of pixel circuits constituting such an active matrix organic EL display portion 10 12 20. 又,因为各象素电路20的电路构成是相同的,所以为了说明简便起见,我们只说明1个象素电路。 Further, because the circuit configuration of each pixel circuit 20 is the same, for simplicity of explanation, we only described one pixel circuit.

象素电路20,如图3所示,备有3个晶体管和2个电容器。 The pixel circuit 20, shown in Figure 3, with three transistors and two capacitors. 详细地说,象素电路20,如图3所示,备有驱动晶体管Trd、调整用晶体管Trc和开关晶体管Trs。 In detail, the pixel circuit 20 shown in FIG. 3, with the drive transistor Trd is, adjusting transistor Trc and the switching transistor Trs. 又,象素电路20备有作为电容元件或保持元件的第1电容器C1和第2电容器C2。 Further, the pixel circuit 20 is provided with a first capacitor C1 and the second capacitor C2 as the capacitive element or holding element.

驱动晶体管Trd、调整用晶体管Trc和控制用晶体管Q的导电型分别由p型(p沟道)构成。 The drive transistor Trd, and adjusting the control transistor Trc are made of p-type (p-channel) with a conductivity type of the transistor Q. 又,开关晶体管Trs的导电型由n型(n沟道)构成。 Further, the switching transistor Trs conductivity type is an n-type (n-channel).

驱动晶体管Trd的漏极与有机EL元件21的阳极连接。 The drain of the driving transistor Trd is connected to the anode of the organic EL element 21. 有机EL元件21的阴极接地。 Cathode of the organic EL element 21 is grounded. 又,驱动晶体管Trd的源极与第2电源线L2连接。 Further, the drive transistor Trd and a source connected to the second power line L2. 第2电源线L2与供给作为驱动电压的驱动电压Vdd的电压供给线VL连接。 The second power line L2 is connected to the supply voltage supply line VL as the driving voltage of the driving voltage Vdd. 驱动晶体管Trd的栅极与第1电容器C1的第1电极La、调整用晶体管Trc的漏极、第2电容器C2的第3电极Lc连接。 The first electrode of the driving transistor La Trd and the gate of the first capacitor C1, the drain of transistor Trc is adjusted, the second capacitor C2 is connected to the third electrode Lc. 第1电容器C1的静电容量为Ca,第2电容器C2的静电容量为Cb。 The capacitance of the first capacitor C1 is Ca, the electrostatic capacitance of the second capacitor C2 is Cb.

第1电容器C1的第2电极Lb与开关晶体管Trs的源极连接。 First capacitor C1 and the second electrode Lb source of the switching transistor Trs is connected. 开关晶体管Trs的漏极与数据线Xm连接。 The drain of the switch transistor Trs is connected to the data line Xm. 又,开关晶体管Trs的栅极与扫描线Yn连接。 Further, the switching transistor Trs and a gate connected to the scanning line Yn.

调整用晶体管Trc的栅极和漏极在节点N连接。 Adjusting the gate and drain of the transistor Trc connected to the node N. 调整用晶体管Trc的源极与设置在其它象素电路20中的其它调整用晶体管Trc的源极和第1电源线L1连接。 Adjusting transistor Trc connected to the source of the transistor and the first power line Ll Trc source 20 provided in the other adjustments of the other pixel circuits. 通过控制用晶体管Q,第1电源线L1与设置在有源矩阵部分12的右端侧的电压供给线VL连接。 Connected via a control transistor Q, the first power line L1 and a voltage supply line disposed in the active matrix side of the right end portion 12 of the VL. 详细地说,控制用晶体管Q的作为它的第7端子的漏极与第1电源线L1连接。 In detail, the control transistor Q 7 as its first drain terminal and the first power supply line L1. 作为第8端子的控制用晶体管Q的源极与电压供给线VL连接。 A source electrode connected to the voltage supply line VL of the transistor Q 8 as a control terminal. 又,控制用晶体管Q的栅极与电源线控制线F连接。 Also, the control transistor Q F connected to the gate control line and the power line. 电源线控制线F与电源线控制电路15连接。 Power-line control line F and the power supply line 15 is connected to the control circuit.

电源线控制电路15通过电源线控制线F供给用于导通控制用晶体管Q并对其进行控制的电源线控制信号SCF。 Power-line control circuit 15 is supplied through the power-line control line F for controlling transistor Q is turned on and its power supply line for controlling a control signal SCF. 而且,当从电源线控制电路15输出使控制用晶体管Q处于接通状态的电源线控制信号SCF时,使控制用晶体管Q处于接通状态。 Further, when the control circuit 15 is output from the power supply line of the control transistor in the ON state of power-line control signal Q SCF, Q of the control transistor in the on state. 结果,将驱动电压Vdd加在调整用晶体管Trc的源极上。 As a result, the driving voltage Vdd applied to the adjustment of the source of the transistor Trc.

第2电容器C2的第4电极Ld与驱动晶体管Trd的源极和第2电源线L2连接。 The second capacitor C2 and the fourth electrode Ld connected to the driving transistor Trd and the second power source line L2.

在本实施形态中,调整用晶体管Trc是为了它的阈值电压Vth2大致与驱动晶体管Trd的阈值电压Vth1相等而形成的。 In the present embodiment, the transistor Trc for adjusting its threshold voltage Vth2 is substantially equal to the threshold voltage Vth1 of the driving transistor Trd formed. 又,驱动电压Vdd是为了比数据电压Vdata充分地高而设定的。 Further, the driving voltage Vdd is set to be sufficiently higher than the data voltage Vdata.

其次,我们按照图4说明如上所述地构成的有机EL显示器10的象素电路20的驱动方法。 Next, we illustrate a driving method of a pixel circuit configured as described above, the organic EL display 10, 20 according to FIG. 此外,在图4中,Tc、T1和T2分别表示驱动周期、数据写入期间和发光期间。 Further, in FIG. 4, Tc, T1 and T2 represent the driving cycle, a data writing period and light emission. 驱动周期Tc由数据写入期间T1和发光期间T2构成。 T1 and T2 constituting the light emitting period during the driving period Tc is written by the data. 驱动周期Tc表示更新有机EL元件21的亮度灰度等级的周期,在本实施形态中,与帧对应。 Driving period Tc indicates that the update period of the organic EL element 21 of the gradation luminance in the present embodiment, corresponding to a frame.

首先,在数据写入期间T1,在开关晶体管Trs处于断开状态中,从电源线控制电路15通过电源线控制线F输出使控制用晶体管Q处于接通状态的电源线控制信号SCF。 First, the data writing period T1, the switching transistor Trs is in the off state, the power supply line from the control circuit 15 in ON state of the control transistor Q power-line control signal SCF via power-line control line F output. 这样一来,使控制用晶体管Q处于接通状态,因此,将驱动电压Vdd输出到与控制用晶体管Q连接的第1电源线L1。 Thus the control transistor Q is in the ON state, the driving voltage Vdd is output to the control transistor Q is connected to the first power line L1.

因此,调整用晶体管Trc的源极电位成为驱动电压Vdd,并且栅极电位,即节点N的电位Vn成为从驱动电压Vdd减去调整用晶体管Trc的阈值电压(Vth2)的电压(Vn=Vdd-Vth2)。 Thus, adjusting transistor Trc becomes the source potential of the driving voltage Vdd, and the gate potential, i.e. the potential of the node N becomes Vn and the adjustment voltage from the driving voltage Vdd is the threshold voltage of the transistor Trc (Vth2 is) a (Vn = Vdd- Vth2). 而且,将电位Vn作为初始电位Vc1保持在第1电容器C1和第2电容器C2中,供给驱动晶体管Trd的栅极。 Further, the gate potential of the drive transistor Trd as Vn initial potential Vc1 held in the first capacitor C1 and the second capacitor C2, is supplied.

又,这时,从扫描线驱动电路13通过扫描线Yn向开关晶体管Trs的栅极供给使开关晶体管Trs处于断开状态的扫描信号SC1,开关晶体管Trs成为断开状态。 Further, at this time, the scanning line drive circuit 13 through the scanning line Yn is supplied to the gate of the switching transistor Trs switch transistor Trs in the scanning signals SC1 OFF state, the switching transistor Trs becomes off state.

此后,从电源线控制电路15通过电源线控制线F输出使控制用晶体管Q处于断开状态的电源线控制信号SCF,控制用晶体管Q成为断开状态,调整用晶体管Trc的源极成为与电源线控制电路15电切断的状态。 Thereafter, the power-line control of the control circuit 15 through a power line control line F in the open state of the output transistor Q power-line control signal SCF, control transistor Q becomes OFF state, adjusting the source electrode of transistor Trc becomes the power supply line control circuit 15 is electrically cut off. 结果,调整用晶体管Trc的漏极成为从驱动电压Vdd电切离的状态,即浮动状态。 As a result, the adjustment becomes the drain of the transistor Trc from the driving voltage Vdd from the power cut state, i.e., a floating state.

接着,从扫描线驱动电路13通过扫描线Yn向开关晶体管Trs的栅极供给使开关晶体管Trs处于接通状态的扫描信号SC1,开关晶体管Trs成为接通状态。 Next, the scanning line drive circuit 13 through the scanning line Yn is supplied to the gate of the switching transistor Trs switch transistor Trs in the scanning signals SC1 ON state, the switching transistor Trs is turned on.

在开关晶体管Trs成为接通状态期间,从数据线驱动电路14通过数据线Xm和开关晶体管Trs向象素电路20供给数据电压Vdata。 In the switch transistor Trs in an on state, the data line 14 through Xm and the switching transistor Trs data voltage Vdata from the data line driving circuit 20 is supplied to the pixel circuit.

因此,初始电压Vc1变成用第1电容器C1的静电容量Ca和第2电容器C2的静电容量Cb,由下式表示的值。 Thus, the initial voltage Vc1 becomes the capacitance Ca and the second capacitor C2 Cb, the capacitance value of the first capacitor C1 is represented by the following formula.

Vc1=Vdd-Vth2+Ca/(Ca+Cb)·ΔVdata这里,ΔVdata是驱动电压Vdd和数据电压Vdata的电位差(=Vdd-Vdata)。 Vc1 = Vdd-Vth2 + Ca / (Ca + Cb) · ΔVdata Here, ΔVdata is the potential difference between the driving voltage Vdd and the data voltage Vdata (= Vdd-Vdata). 而且,将这个Vdd-Vth2+Ca/(Ca+Cb)·ΔVdata作为最终电位Vc2供给驱动晶体管Trd的栅极。 Moreover, this Vdd-Vth2 + Ca / (Ca + Cb) · ΔVdata as the final gate voltage Vc2 supplied to the driving transistor Trd.

与最终电位Vc2相应地,设定驱动晶体管Trd的导通状态,将与该导通状态相应的驱动电流Ie1供给有机EL元件21。 Accordingly, the final potential Vc2, setting the conduction state of the driving transistor Trd, corresponding to the conduction state of the driving current Ie1 supplied to the organic EL element 21. 当将驱动晶体管Trd的栅极电压Vg与源极电压Vs的电位差表示为Vgs时,该电流Ie1如下表示。 When the potential difference of the drive transistor Trd gate voltage Vg and the source voltage Vs is represented by Vgs, the current Ie1 expressed as follows.

Ie1=(1/2)β(-Vgs-Vth1)2这里,β为增益系数,载流子的迁移率为μ,栅极电容为A,沟道宽度为W,沟道长度为L。 Ie1 = (1/2) β (-Vgs-Vth1) 2 Here, the gain coefficient beta], carrier mobility [mu], a gate capacitance A, a channel width W, the channel length L. 增益系数β为β=(μAW/L)。 Is the gain coefficient beta] β = (μAW / L). 此外,驱动晶体管Trd的栅极电压Vg是最终电位Vc2。 Further, the drive transistor Trd is the final gate voltage Vg potential Vc2. 即,驱动晶体管Trd的栅极电压Vg与源极电压Vs的电位差Vgs如下表示。 That is, the driving transistor Trd gate voltage Vg and the potential difference Vgs of the source voltage Vs is expressed as follows.

Vgs=Vdd-[Vdd-Vth2+Ca/(Ca+Cb)·ΔVdata]从而,驱动晶体管Trd的驱动电流Ie1如下表示。 Vgs = Vdd- [Vdd-Vth2 + Ca / (Ca + Cb) · ΔVdata] Accordingly, the driving transistor Trd is expressed as the driving current Ie1.

Ie1=(1/2)β[Vth2-Ca/(Ca+Cb)·ΔVdata-Vth1]2这里,因为调整用晶体管Trc的阈值电压Vth2,如上所述,是为了大致与驱动晶体管Trd的阈值电压Vth1相等而设定的,所以驱动电流Ie1如下表示。 Ie1 = (1/2) β [Vth2-Ca / (Ca + Cb) · ΔVdata-Vth1] 2 Here, since the transistor Trc adjusting the threshold voltage Vth2 is, as described above, substantially to the threshold voltage of the drive transistor Trd is set equal to vth1, the driving current Ie1 follows.

Ie1=(1/2)β[Vth2-Ca/(Ca+Cb)·ΔVdata-Vth1]2=(1/2)β[Ca/(Ca+Cb)·ΔVdata]2从而,如上式所示,驱动电流Ie1与驱动晶体管Trd的阈值电压Vth1无关,成为与数据电压Vdata对应的大电流。 2 so that, as shown Ie1 = (1/2) β [Vth2-Ca / (Ca + Cb) · ΔVdata-Vth1] 2 = (1/2) β [Ca / (Ca + Cb) · ΔVdata] the above formula, driving current Ie1 drive transistor Trd and the threshold voltage Vth1 regardless become a large current corresponding to the data voltage Vdata. 而且,将该驱动电流Ie1供给有机EL元件21,使有机EL元件21发光。 Further, the driving current Ie1 supplied to the organic EL element 21, the organic EL element 21 emits light.

其次,在数据写入期间T1结束后,在发光期间T2,从扫描线驱动电路13通过扫描线Yn向开关晶体管Trs的栅极供给使开关晶体管Trs处于断开状态的扫描信号SC1,这样一来,开关晶体管Trs成为断开状态。 Second, after the data writing period Tl, the light emitting period T2, the scanning line drive circuit 13 Yn through the scan line of the switching transistor is supplied to the gate of the switch transistor Trs Trs scan signal SC1 is the OFF state, so that , the switching transistor Trs becomes off state.

在该发光期间T2,将与最终电位Vc2相应地设定的驱动晶体管Trd的导通状态相应的驱动电流Ie1供给有机EL元件21。 Driving current Ie1 supplied to the corresponding organic EL element 21 in a conducting state of the driving transistor T2, the final potential Vc2 set according to the light emission period Trd.

如以上所示,即便各象素电路20的驱动晶体管Trd的阈值电压Vth1由于制造上的零散而不同,驱动电流Ie1也是由数据电压Vdata决定的。 As described above, even if the drive transistor Trd each pixel circuit 20 in threshold voltage Vth1 scattered due to a manufacturing different, the driving current Ie1 is determined by the data voltage Vdata. 因此,能够根据数据电压Vdata高精度地控制有机EL元件21的亮度灰度等级。 Accordingly, it is possible to accurately control the luminance gradation of the organic EL element 21 according to the data voltage Vdata.

而且,能够减少构成象素电路20的晶体管数量,并且,能够补偿制造引起的零散。 Further, it is possible to reduce the number of transistors constituting the pixel circuit 20, and can be induced to compensate for manufacturing fragmented. 从而,象素电路20能够提供除了能够高精度地控制有机EL元件21的亮度灰度等级外,还能够提高成品率和孔径率的有机EL显示器10。 Thus, the pixel circuit 20 can be provided in addition to accurately control the luminance gradation of the organic EL element 21, but also the yield can be improved and the aperture ratio of the organic EL display 10.

又,最好构成象素电路20的晶体管是由,例如,单晶硅、多晶硅、微晶硅、或非晶硅中任何一种形成的。 And, preferably transistor constituting the pixel circuit 20 is composed of, e.g., silicon, polycrystalline silicon, microcrystalline silicon, amorphous silicon, or any of a formation.

(第2实施形态)其次,我们按照图5说明使本发明具体化的第2实施形态。 (Second Embodiment) Next, we illustrate embodying the present invention of the second embodiment according to FIG. 又,在本实施形态中,与第1实施形态相同的构成部件用相同的标号,并省略对它们的详细说明。 Further, in the present embodiment, the first form of embodiment of the same components by the same reference numerals, and a detailed description thereof will be omitted.

图5是表示有机EL显示器10的有源矩阵部分12a和数据线驱动电路14的内部电路构成的方框电路图。 FIG 5 is a diagram showing an active matrix organic EL display portions 12a and the data line driver 10 is a circuit diagram of a block circuit 14 of the internal circuit configuration. 在本实施形态中,有源矩阵部分12a由具有发射红色光的有机EL元件21的红用象素电路20R、具有发射绿色光的有机EL元件21的绿用象素电路20G、和具有发射蓝色光的有机EL元件21的蓝用象素电路20B构成。 In the present embodiment, the active matrix portion 12a with a red pixel circuit 20R has a red light emitting organic EL element 21, an organic EL element emitting green light by the green pixel 20G circuit 21, and blue emission having the organic EL element 21 with the color light blue pixel circuit 20B configured. 上述各红、绿和蓝用象素电路20R、20G、20B的电路构成分别与第1实施形态中说明的象素电路20的电路构成相同。 Each of the red, green and blue pixels with a circuit 20R, 20G, 20B the circuit configuration of the pixel circuit of the circuit in the first embodiment are described in 20 the same configuration.

当进行详细述说时,有源矩阵部分12a将同色的象素电路20R、20G、20B沿扫描线Yn的延设方向进行配置。 When describing in detail, the active matrix portion 12a with the color of the pixel circuits 20R, 20G, 20B along the extending direction of the scanning line Yn is arranged. 即,在扫描线Yn中,红用象素电路20R与第1扫描线Y1连接。 That is, the scanning line Yn, the red pixel circuit 20R connected with the first scanning line Y1. 同样,在扫描线Yn中,绿用象素电路20G与第2扫描线Y2连接。 Similarly, in the scanning line Yn, a green pixel circuit 20G and the second scanning line Y2 is connected.

同样,在扫描线Yn中,蓝用象素电路20B与第3扫描线Y3连接。 Also, the scanning line Yn, the blue pixel circuit 20B and a third scanning line Y3 is connected. 而且,顺次地在列方向重复配置这样的各象素电路20R、20G、20B。 Further, repeated sequentially arranged in the column direction so that each pixel circuit 20R, 20G, 20B. 又,与各色的象素电路20R、20G、20B对应的控制用晶体管QR、QG、QB与供给与各色的象素电路20R、20G、20B对应的驱动电压VddR、VddG、VddB的电压供给线VLR、VLG、VLB连接。 Further, the color pixel circuits 20R, 20G, 20B corresponding to the control transistor QR, QG, QB supply circuit and the pixel of each color 20R, 20G, 20B corresponding to the driving voltage VddR, VddG, VddB voltage supply line VLR , VLG, VLB connection.

其次,我们说明上述那样构成的有机EL显示器10的象素电路20R、20G、20B的驱动方法。 Next, we illustrate the above-described organic EL display configuration of pixel circuits 20R 10, the driving method 20G, 20B of.

通过扫描线Y1供给使开关晶体管Trs处于断开状态的扫描信号,在使配置在扫描线Y1的延设方向中的红用象素电路20R内的开关晶体管Trs处于断开状态的期间,从电源线控制电路15,输出使与扫描线Y1对应的控制用晶体管QR处于接通状态的信号。 The switching transistor Trs is in the off state by a scanning signal Y1 supplied to the scanning line, when the switch transistor Trs arranged with the red pixel circuit 20R in the extending direction of the scanning lines Y1 in the OFF state during the power line control circuit 15, the scanning line Y1 outputs a corresponding control signal is in the on state transistor QR. 因此,在与扫描线Y1连接的各个红用象素电路20R中包含的第1电容器C1和第2电容器C2中保持电位Vn(=Vdd-Vth2)作为初始电位Vc1。 Accordingly, first capacitor C1 and the second capacitor C2 included in each red pixel circuit 20R connected with the scanning line Y1 is held in a potential Vn (= Vdd-Vth2) as an initial potential Vc1.

此后,从电源线控制电路15供给使控制用晶体管QR处于断开状态,进一步通过扫描线Y1供给使开关晶体管Trs处于接通状态的扫描信号。 Thereafter, the control circuit 15 is supplied from the supply line of the control transistor QR is in an OFF state, the switching transistor Trs is further ON state by the scanning signal Y1 supplied to the scanning line. 在这种状态中,从数据线驱动电路14的单一线驱动器23通过数据线Xm和开关晶体管Trs向象素电路20供给数据电压Vdata。 In this state, the data line driving circuit 14 is a single-line driver 23 to the data voltage Vdata supplied to the pixel circuit 20 through data lines Xm and the switching transistor Trs.

通过这样做,初始电压Vc1变成用第1电容器C1的静电容量Ca和第2电容器C2的静电容量Cb,由下式表示的值。 By doing so, the initial voltage Vc1 becomes the capacitance Ca and the second capacitor C2 Cb, the capacitance value of the first capacitor C1 is represented by the following formula.

Vc1=Vdd-Vth2+Ca/(Ca+Cb)·ΔVdata而且,将这个Vc1作为最终电位Vc2供给驱动晶体管Trd的栅极。 Vc1 = Vdd-Vth2 + Ca / (Ca + Cb) · ΔVdata Furthermore, this final voltage Vc1 Vc2 to the gate of the drive transistor Trd.

与最终电位Vc2相应地,设定驱动晶体管Trd的导通状态,将与该导通状态相应的驱动电流Ie1供给有机EL元件21。 Accordingly, the final potential Vc2, setting the conduction state of the driving transistor Trd, corresponding to the conduction state of the driving current Ie1 supplied to the organic EL element 21.

结果,使红用象素电路20R的有机EL元件21发光。 As a result, a red organic EL element 20R of the pixel circuit 21 emits light. 这时,调整用晶体管Trc的阈值电压Vth2是为了大致与驱动晶体管Trd的阈值电压Vth1相等而设定的。 In this case, adjusting the threshold voltage Vth2 with transistor Trc substantially to the threshold voltage Vth1 of the driving transistor Trd is equal to the set. 从而,因为能够补偿红用象素电路20R的各个驱动晶体管Trd的阈值电压Vth1,所以能够与数据电压Vdata相应高精度地控制红用象素电路20R的有机EL元件21的亮度灰度等级。 Accordingly, since it is possible to compensate for red pixel circuit 20R in each drive transistor Trd Vth1 is the threshold voltage, it is possible to accurately control the brightness corresponding to the gradation of the organic EL element 21 with the red pixel circuit 20R, the data voltage Vdata.

接着,在使在与扫描线Y2对应的绿用象素电路20G中包含的开关晶体管Trs处于断开状态的状态中,从电源线控制电路15使控制用晶体管QG处于接通状态。 Next, the switching transistor Trs included in the green pixel circuit 20G with the scanning line Y2 corresponding to the state in the OFF state, the control circuit 15 from the power supply line of the control transistor QG is turned on. 因此,在与扫描线Y2连接的各个绿用象素电路20G的第1电容器C1和第2电容器C2中保持电位Vn(=Vdd-Vth2)作为初始电位Vc1。 Thus, the holding potential Vn (= Vdd-Vth2) in each of the green pixel circuit connected with the scanning line Y2 20G of the first capacitor C1 and the second capacitor C2 as an initial potential Vc1.

此后,从电源线控制电路15供给使控制用晶体管QG处于断开状态,进一步通过第2扫描线Y2供给使开关晶体管Trs处于接通状态的扫描信号。 Thereafter, the control circuit 15 is supplied from the supply line of the control transistor QG in the OFF state, further by the second scanning line Y2 of the switching transistor Trs is supplied to the scanning signal on state. 与此相呼应,从数据线驱动电路14的单一线驱动器23通过数据线Xm供给数据电压Vdata。 In concert with this, the data line driving circuit 14 is a single line driver 23 is supplied through the data line Xm data voltage Vdata.

通过这样做,初始电压Vc1变成用第1电容器C1的静电容量Ca和第2电容器C2的静电容量Cb,由下式表示的值。 By doing so, the initial voltage Vc1 becomes the capacitance Ca and the second capacitor C2 Cb, the capacitance value of the first capacitor C1 is represented by the following formula.

Vc1=Vdd-Vth2+Ca/(Ca+Cb)·ΔVdata而且,将这个Vc1作为最终电位Vc2供给驱动晶体管Trd的栅极。 Vc1 = Vdd-Vth2 + Ca / (Ca + Cb) · ΔVdata Furthermore, this final voltage Vc1 Vc2 to the gate of the drive transistor Trd.

与最终电位Vc2相应地,设定驱动晶体管Trd的导通状态,将与该导通状态相应的驱动电流Ie1供给有机EL元件21。 Accordingly, the final potential Vc2, setting the conduction state of the driving transistor Trd, corresponding to the conduction state of the driving current Ie1 supplied to the organic EL element 21.

结果,使绿用象素电路20G的有机EL元件21发光。 As a result, by making the green pixel circuit 20G organic EL element 21 emits light. 这时,调整用晶体管Trc的阈值电压Vth2是为了大致与驱动晶体管Trd的阈值电压Vth1相等而设定的。 In this case, adjusting the threshold voltage Vth2 with transistor Trc substantially to the threshold voltage Vth1 of the driving transistor Trd is equal to the set. 从而,因为能够补偿各个绿用象素电路20R的驱动晶体管Trd的阈值电压Vth1,所以能够与数据电压Vdata相应高精度地控制绿用象素电路20G的有机EL元件21的亮度灰度等级。 Accordingly, since it is possible to compensate the respective green pixel circuit 20R with the drive transistor Trd Vth1 is the threshold voltage, it is possible to accurately control the brightness corresponding to the gradation of pixel circuits 21 with green organic EL element 20G of the data voltage Vdata.

下面,对于与扫描线Y3对应地设置的蓝用象素电路20B也进行同样的操作。 Next, with respect to the blue pixel circuit 20B corresponding to the scanning line Y3 also provided the same operation.

通常,有机EL元件21与发光颜色有关其材料特性是不同的,需要对每种发光颜色设定驱动电压。 Typically, 21 and the luminescent color of the organic EL element on its material properties are different, the driving voltage needs to be set for each emission color. 在这种情形中,第2实施形态那样的面板设计是适合的。 In this case, the panel design as the second embodiment is suitable.

又,当与发光颜色有关由于有机EL元件的随着时间经过而恶化等使驱动电压不同时,通过与有机EL元件的随着时间经过而恶化的程度相应,再次适当地设定驱动电压Vdd,也能够补偿有机EL元件的随着时间经过而发生的恶化。 Further, when the emission color as time elapses related deterioration of the organic EL element because the driving voltage is not the same, corresponding, again appropriately set by the driving voltage Vdd and the degree of deterioration with time of the organic EL element, deterioration occurs over time can be compensated for the organic EL element.

当然,上述第2实施形态的概念也能够适用于有机EL元件以外的电子元件和电光元件。 Of course, the concept of the second embodiment described above can also be applied to the electronic components and the electro-optical element other than the organic EL element.

(第3实施形态)其次,我们按照图6和图7说明作为第1和第2实施形态中说明的电光装置的有机EL显示器10的电子设备的适用性。 (Third Embodiment) Next, we illustrate the applicability of the electro-optical device of the first aspect and the second embodiment described organic EL display of the electronic device 10 according to FIGS. 6 and 7. 有机EL显示器10能够适用于能动型个人计算机、便携式电话、数码相机等种种电子设备。 The organic EL display 10 can be applied to active-type personal computers, cellular phones, digital cameras and various electronic devices.

图6是表示能动型个人计算机构成的斜视图。 FIG 6 is a perspective view of an active type personal computer configuration. 在图6中,个人计算机50备有具有键盘51的本体部分52和用有机EL显示器10的显示单元53。 In FIG. 6, the personal computer 50 having a keyboard 51 with the body portion 52 and the display unit 53 with the organic EL display 10. 即便在这种情形中,用有机EL显示器10的显示单元53也能够发挥与上述实施形态相同的效果。 Even in this case, an organic EL display by the display unit 10, 53 can also exhibit the same effect as the above embodiment. 结果,能够提供备有能够高精度地控制有机EL元件21的亮度灰度等级并且能够提高成品率和孔径率的有机EL显示器10的能动型个人计算机50。 As a result, it can be provided can be precisely controlled with the luminance gradation of the organic EL element 21 and the yield can be improved and the aperture ratio of the active type organic EL display 5010 of the personal computer.

图7是表示便携式电话构成的斜视图。 7 is a perspective view of a portable telephone configuration. 在图7中,便携式电话60备有多个操作按钮61、受话口62、送话口63、和用有机EL显示器10的显示单元64。 In FIG. 7, the portable telephone 60 provided with a plurality of operation buttons 61, an earpiece 62, a mouthpiece 63, and a display unit 10 using the organic EL display 64. 即便在这种情形中,用有机EL显示器10的显示单元64也能够发挥与上述实施形态相同的效果。 Even in this case, with the display unit 64 of the organic EL display 10 can also exhibit the same effect as the above embodiment. 结果,能够提供备有能够高精度地控制有机EL元件21的亮度灰度等级并且能够提高成品率和孔径率的有机EL显示器10的便携式电话60。 As a result, it can be provided can be precisely controlled with the luminance gradation of the organic EL element 21 and the yield can be improved and the aperture ratio of the organic EL display 6010 of the mobile phone.

又,本发明的实施形态不限定于上述实施形态,也可以如下地进行实施。 Further, embodiments of the present invention is not limited to the above embodiment, it may be carried out as follows.

○在上述实施形态中,作为控制电路,使用控制用晶体管Q。 ○ In the above embodiment, as the control circuit, using the control transistor Q. 也可以改变晶体管Q设置在低电位和高电位之间切换它的开关。 The transistor Q change may be provided between the low potential and the high potential switching its switch. 又,为了提高驱动晶体管Trd的驱动能力也可以使用包含缓冲电路或源极跟随器电路的电压跟随器电路。 Furthermore, in order to enhance the driving ability of the driving transistor Trd is also possible to use a voltage follower circuit comprises a buffer circuit or a source follower circuit. 通过这样做,能够快速地向象素电路供给电流。 By doing so, it is possible to quickly supply a current to the pixel circuit.

○在上述实施形态中,将控制用晶体管Q和电压供给线VL设置在有源矩阵部分12的右端侧,但是也可以将控制用晶体管Q和电压供给线VL设置在电源控制电路15中。 ○ In the above embodiment, the control transistor Q and the voltage-supply line VL provided on the right side of the active matrix portion 12, it is also possible to control the transistor Q and the voltage-supply line VL provided on the power control circuit 15.

○也可以将电压供给线VL设置在对于有源矩阵部分12与扫描线驱动电路13相同的一侧。 ○ may be provided at the voltage-supply line VL to the active matrix portion 12 side of the scanning line drive circuit 13 is the same.

○也可以将电源控制电路15设置在对于有源矩阵部分12与扫描线驱动电路13相同的一侧。 ○ power supply control circuit may be provided on one side 15 to the active matrix portion 12 and the same scanning line driving circuit 13.

○在上述实施形态中,使驱动晶体管Trd、调整用晶体管Trc和控制用晶体管Q的导电型为p型,开关晶体管Trs的导电型为n型。 ○ In the above embodiment, the drive transistor Trd is, adjusting transistor Trc and the control transistor Q conductivity type is p-type conductivity type switching transistor Trs is n type. 但是也可以使驱动晶体管Trd和调整用晶体管Trc导电型为n型,开关晶体管Trs和控制用晶体管Q的导电型为p型。 However, it is also possible to adjust the drive transistor Trd and Trc conductivity type with an n-type transistor, the switching transistor Trs and the transistor Q control conductivity type is p-type.

或者,也可以使上述全部晶体管的导电型都是相同的。 Alternatively, all of the above conductive type transistor are the same.

○在上述实施形态中,我们述说了将本发明应用于有机EL元件的例子,但是当然,也可以具体化成驱动除了有机EL元件以外的例如LED、FED、液晶元件、无机EL元件、电泳元件、电子发射元件等的种种电光元件的单位电路。 ○ In the above embodiment, an example will tell us the present invention is applied to the organic EL element, but of course, the drive may be embodied e.g. LED, FED, a liquid crystal element, an inorganic EL element, an electrophoretic element in addition to the organic EL element, electron emission element such as a variety of electro-optical element of the unit circuit. 也可以具体化成RAM等(特别是MRAM)的存储元件。 It may be embodied as memory elements such as a RAM (in particular MRAM) a.

Claims (15)

1.一种电光装置,包括:多条扫描线;多条数据线;多个电光元件;和与所述多条数据线交叉的多条电源线;所述多个电光元件包括:用于第一色的电光元件、和用于与所述第一色不同的第二色的电光元件;所述多条电源线包括:用于向所述用于第一色的电光元件供给第一驱动电压的第一电源线、和用于向所述用于第二色的电光元件供给第二驱动电压的第二电源线;所述用于第一色的电光元件和所述用于第二色的电光元件相互邻接,并且沿所述多条数据线中的一条数据线配置。 1. An electro-optical apparatus, comprising: a plurality of scan lines; a plurality of data lines; a plurality of electro-optical elements; and said plurality of data lines crossing the plurality of power lines; a plurality of electro-optical element comprising: a first electro-optical element of the same color, the first color and a second color different from the electro-optical element; said plurality of power supply lines comprising: a first driving voltage supplied to the electro-optical element for a first color a first power supply line and a second power supply line to the electro-optical element is supplied to the second driving voltage for a second color; the electro-optical element for a first color and said second color for the electro-optical elements adjacent to each other, along the data line and a plurality of data lines arranged.
2.一种电光装置,包括:多条扫描线;多条数据线;多个电光元件;和与所述多条数据线交叉的多条电源线;所述多个电光元件包括:用于第一色的电光元件、和用于与所述第一色不同的第二色的电光元件;所述多条电源线包括:用于向所述用于第一色的电光元件供给第一驱动电压的第一电源线、和用于向所述用于第二色的电光元件供给第二驱动电压的第二电源线;所述用于第一色的电光元件的亮度,由经过所述多条数据线中的一条数据线供给的数据信号所设定;所述用于第二色的电光元件的亮度,由经过所述一条数据线供给的数据信号所设定。 2. An electro-optical apparatus, comprising: a plurality of scan lines; a plurality of data lines; a plurality of electro-optical elements; and said plurality of data lines crossing the plurality of power lines; a plurality of electro-optical element comprising: a first electro-optical element of the same color, the first color and a second color different from the electro-optical element; said plurality of power supply lines comprising: a first driving voltage supplied to the electro-optical element for a first color a first power source line, and for a second color to the second power supply line supplying a second electro-optical element drive voltage; for the luminance of the electro-optical element of a first color, a plurality of through the a data signal supplied to the data lines in the set of data lines; for the luminance of the electro-optical element of the second color, is set by the data signal via a data line supplied.
3.根据权利要求1或2所述的电光装置,其特征在于,所述第一驱动电压与所述第二驱动电压相互不同。 The electro-optical device according to claim 1 or claim 2, wherein said first driving voltage and the second driving voltage different from each other.
4.根据权利要求1~3中任一项所述的电光装置,其特征在于,所述多个电光元件还包括用于与所述第一色和所述第二色均不同的第三色的电光元件;所述多条电源线还包括用于向所述用于第三色的电光元件供给第三驱动电压的第三电源线。 The electro-optical device as claimed in any one of claims 1 to 3, wherein said plurality of electro-optical element further comprises a first color and said second color and said third color different from both the electro-optical element; said plurality of power supply lines further includes a third power source line for supplying a third driving voltage to the electro-optical element of a third color.
5.根据权利要求2所述的电光装置,其特征在于,与所述用于第一色的电光元件对应设置第一开关晶体管;与所述用于第二色的电光元件对应设置第二开关晶体管;所述第一开关晶体管的栅极与所述多条扫描线中的一条扫描线连接;所述第二开关晶体管的栅极与所述多条扫描线中的不同于所述一条扫描线的另一条扫描线连接;所述第一开关晶体管的源极或漏极与所述一条数据线连接;所述第二开关晶体管的源极或漏极与所述一条数据线连接。 The electro-optical device according to claim 2, wherein the electro-optical element for a first color corresponding to a first switching transistor is provided; and for the second electro-optical element corresponding to a second color switch transistor; a gate of the transistor switch and the first scan line of the plurality of scan lines being connected; different from the plurality of scanning lines of said second switching transistor and said gate of said scan line another one scanning line; a source or drain of said first switching transistor and the data line is connected; a source or drain of the second switching transistor is connected to the data line.
6.根据权利要求4所述的电光装置,其特征在于,所述第一色是红色;所述第二色是绿色;所述第三色是蓝色。 6. The electro-optical device according to claim 4, wherein said first color is red; the second color is green; the third color is blue.
7.根据权利要求1~6中任一项所述的电光装置,其特征在于,重新设定所述第一驱动电压。 7. The electro-optical apparatus of one of claims 1 to 6, in any of the preceding claims, wherein the first driving voltage resetting.
8.根据权利要求1~7中任一项所述的电光装置,其特征在于,重新设定所述第二驱动电压。 8. The electro-optical device as claimed in any one of claims 1 to 7, wherein the second driving voltage reset.
9.根据权利要求1~8中任一项所述的电光装置,其特征在于,所述第一驱动电压,根据所述用于第一色的电光元件的劣化,被重新设定。 9. The electro-optical apparatus of one of claims 1 to 8 according to any of the preceding claims, wherein the first driving voltage according to the color to deterioration of the first electro-optical element, is reset.
10.根据权利要求1~9中任一项所述的电光装置,其特征在于,所述第二驱动电压,根据所述用于第二色的电光元件的劣化,被重新设定。 10. The electro-optical device according to any of 1 to 9 claims, wherein the second driving voltage, deterioration of the electro-optical element according to the second color, is reset.
11.根据权利要求1~10中任一项所述的电光装置,其特征在于,所述多个电光元件是有机EL元件。 11. The electro-optical device according to any one of claims 1 to 10, wherein said plurality of electro-optical element is an organic EL element.
12.根据权利要求1~11中任一项所述的电光装置,其特征在于,所述用于第一色的电光元件发出绿色光;所述用于第二色的电光元件发出红色光; 12. The electro-optical device according to any one of claims 1 to 11, characterized in that, for the first electro-optical element emits green color light; the color of the second electro-optical element for emitting red light;
13.根据权利要求1~11中任一项所述的电光装置,其特征在于,所述用于第一色的电光元件发出蓝色光;所述用于第二色的电光元件发出红色光; 13. The electro-optical device according to any one of claims 1 to 11, characterized in that, for the first color electro-optical element emits blue light; the color of the second electro-optical element for emitting red light;
14.根据权利要求1~11中任一项所述的电光装置,其特征在于,所述用于第一色的电光元件发出蓝色光;所述用于第二色的电光元件发出绿色光; 14. The electro-optical device according to any one of claims 1 to 11, characterized in that, for the first color electro-optical element emits blue light; for the second electro-optical element emits green color light;
15.一种电子设备,包括权利要求1~14中任一项所述的电光装置。 15. An electronic apparatus comprising an electro-optical device according to any one of claims 1 to 14.
CN 200610095817 2002-08-30 2003-08-29 Electrooptical device and electronic apparatus CN1881397A (en)

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CN101989403A (en) * 2009-08-03 2011-03-23 三星移动显示器株式会社 Organic light emitting display and driving method thereof
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