CN1794329A - 有机电场发光显示装置 - Google Patents

有机电场发光显示装置 Download PDF

Info

Publication number
CN1794329A
CN1794329A CNA200510118503XA CN200510118503A CN1794329A CN 1794329 A CN1794329 A CN 1794329A CN A200510118503X A CNA200510118503X A CN A200510118503XA CN 200510118503 A CN200510118503 A CN 200510118503A CN 1794329 A CN1794329 A CN 1794329A
Authority
CN
China
Prior art keywords
voltage
display device
gate
electric field
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA200510118503XA
Other languages
English (en)
Other versions
CN100555381C (zh
Inventor
金天弘
柳世钟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydis Technologies Co Ltd
Original Assignee
Hydis Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hydis Technologies Co Ltd filed Critical Hydis Technologies Co Ltd
Publication of CN1794329A publication Critical patent/CN1794329A/zh
Application granted granted Critical
Publication of CN100555381C publication Critical patent/CN100555381C/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • G09G2310/061—Details of flat display driving waveforms for resetting or blanking
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of El Displays (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

本发明提供一种可以通过防止像素内具有的驱动晶体管的特性恶化，延长有机电场发光显示装置的寿命，提高图像质量的有机电场发光显示装置。该装置包括：传送数据信号的多个数据线；与所述多个数据线交叉配置，传送栅极信号的多个栅极线；由所述多个数据线和所述多个栅极线形成的多个像素；以及传送外部电源的电源线，所述各像素包括：晶体管，栅极端子与所述数据线连接，漏极端子与所述栅极线连接；以及有机发光部件，按照流过所述晶体管的源极端子的电流量来发光。

Description

有机电场发光显示装置
技术领域
本发明涉及有机电场发光显示装置，更详细地是涉及构成为防止各像素中具有的晶体管的特性恶化和图像品质降低的有机电场发光显示装置。
背景技术
现在，作为取代CRT的显示元件，液晶显示装置被开发出来，其使用率日益增加。由于液晶显示装置不是自身发光的显示装置，所以需要其他途径的光源，因此消耗电力高，在薄型化方面存在限制。而且，由于液晶显示装置通过液晶的反应得到图像信号，所以由于液晶的响应时间而在高速活动图像的显示中存在限制，在视野角中也存在限制。作为取代这样的液晶显示装置的显示元件，开发了有机电场发光(organic electroluminescence)显示装置。现状是，这样的有机电场发光显示装置利用特定的有机物或者高分子物等在施加了的电场时，放出光。
以下，参照图1来说明有机电场发光显示装置。
图1是简略表示有机电场发光显示装置的方框图。
有机电场发光显示装置具有：显示板11、与显示板11连接的栅极驱动器12、数据驱动器13以及控制它们的定时控制器14。所述显示板11包括平行排列的多个栅极线(G1、G2、…、Gm-1、Gm)以及与该栅极线(G1、G2、…、Gm-1、Gm)交叉排列的多个数据线(D1、D2、…、Dn-1、Dn)。这样，由排列为矩阵状的栅极线(G1、G2、…、Gm-1、Gm)和数据线(D1、D2、…、Dn-1、Dn)所包围的区域中形成单位像素。
图2是表示以往的有机电场发光显示装置的各像素的电路图，图3是所述各像素的一帧区间之间的动作波形图。
以往的有机电场发光显示装置的各像素具有开关晶体管T1、电容器C、驱动晶体管T2和有机发光二极管OLED。
开关晶体管T1的漏极端子与数据线(D)连接，栅极端子与栅极线(G)连接。所述开关晶体管T1通过传送到栅极线(G)的栅极信号(gate1)开启和关闭。在开关晶体管T1被开启的情况下，该开关晶体管T1将从数据线(D)传送的数据信号(data1)传送到电容器C和驱动晶体管T2。电容器C被连接到外部电压(Vdd)端子，将数据信号(data1)维持一帧期间。所述驱动晶体管T2的栅极端子被连接到开关晶体管T1的源极端子和电容器C，漏极端子被连接到外部电压(Vdd)。所述驱动晶体管T2通过从所述开关晶体管T1施加的数据信号和对电容器C充电的数据信号，即通过开关晶体管T1和电容器C的共同连接端子P的数据信号(data2)被开启和关闭。通过这样的数据信号(data2)驱动晶体管T2被开启的情况下，该驱动晶体管T2调节流过外部电压(Vdd)端子的电流量并传送到有机发光二极管OLED1。其结果，有机发光二极管OLED1与被传送的电流i1的量成比例而发射光11。这里，所述有机发光二极管OLED1的阳极(anode)被连接到驱动晶体管T2的源极端子，有机发光二极管OLED1的阴极(cathode)被连接到共用阴极端子Vca。
在这样的以往的有机电场发光显示装置中，通过栅极信号(gata1)开启像素时，所述像素中具有的驱动晶体管T2由于第一开关晶体管T1和电容器C的共用连接端子P的数据信号(data2)而在一帧期间始终被开启，对所述有机发光二极管OLED1持续地施加电流i1。由此，驱动晶体管T2的特性恶化，从而驱动晶体管T2的阈值电压(Vth)改变。由于这样的阈值电压(Vth)的变化，驱动晶体管T2的输出电流改变，所以有机发光二极管OLED1发射的光11的均匀性降低，从而图像品质降低，可以使有机发光二极管OLED1的寿命降低，使有机电场发光显示装置的寿命缩短。
而且，在以往的有机电场发光显示装置中，通过数据线(D)连续对各像素施加数据信号(data1)，通过所述数据信号各像素的有机发光二极管OLED1连续发光，从而连续显示图像信号。由此，以往的有机电场发光显示装置的使用者识别与以前的图像信号和新的当前的图像信号两个图像信号的中间值对应的图像信号，其结果，显示画面可以看到有些模糊。这样的现状在表现高速活动图像的情况下进一步增加。
为了解决这样的问题，虽然提出了增加晶体管的数量来补偿晶体管的特性恶化的技术，但是由于晶体管数量的增加，开口率减少，产生各像素的结构变得复杂的问题。
发明内容
本发明是为解决如前所述的现有技术的有机电场发光显示装置中存在的问题而提出的，目的是提供一种可以防止像素中具有的驱动晶体管的特性恶化，提高图像质量的有机电场发光显示装置。
为了达到本发明的所述目的，本发明的一个方面提供一种有机电场发光显示装置，包括：传送数据信号的多个数据线；与所述多个数据线交叉配置，传送栅极信号的多个栅极线；以及由所述多个数据线和所述多个栅极线形成的多个像素，其特征在于，所述各像素包括：晶体管，栅极端子与所述数据线连接，漏极端子与所述栅极线连接；以及有机发光部件，按照流过所述晶体管的源极端子的电流量来发光。
在所述结构中，由通过所述数据线施加到所述晶体管的栅极端子的电压电平来决定流过所述晶体管的源极端子的电流量。
在所述结构中，通过所述栅极线对所述晶体管的漏极端子施加第一电压和第二电压，在施加所述第一电压的情况下，所述晶体管的源极端子中不流过电流，在施加所述第二电压的情况下，所述晶体管的源极端子中流过电流。
在所述结构中，所述第一电压具有比所述晶体管的阈值电压低的电压电平。
在所述结构中，所述第二电压具有比被施加到所述晶体管的栅极端子的电压和所述阈值电压的电压电平差高的电压电平。
本发明的发明效果是，按照本发明的所述结构，通过将栅极信号施加到驱动晶体管的漏极端子，将数据信号施加到所述驱动晶体管的栅极端子，可以防止驱动晶体管的特性恶化，其结果，可以延长有机电场发光显示装置的寿命。并且，可以通过防止驱动晶体管的特性恶化以及有机发光二极管的黑图案来使有机电场发光显示装置的图像质量提高。
虽然将本发明与特定的实施方式相关联来图示和说明，但是本发明不限于此，本技术领域的技术人员可以容易理解，在不超出由权利要求设定的本发明的精神和领域的限度内，本发明可以进行多样的改造和变形。
附图说明
图1是表示有机电场发光显示装置的方框图。
图2是表示以往的有机电场发光显示装置的各像素的电路图。
图3是表示图2所示的各像素的动作波形的波形图。
图4是表示本发明的有机电场发光显示装置的各像素的电路图。
图5是表示图4所示的各像素的动作波形的波形图。
具体实施方式
以下，参照附图说明本发明的优选实施方式。
图4是表示本发明的有机电场发光显示装置的各像素的电路图。
本发明的有机电场发光显示装置的各像素具有驱动晶体管T3和有机发光二极管OLED2。这里，驱动晶体管T3的栅极端子被连接到数据线(D)，漏极端子被连接到栅极线(G)而且，驱动晶体管T3的源极端子与有机发光二极管OLED2连接。有机发光二极管OLED2的阳极与所述驱动晶体管T3的源极端子连接，阴极与共用阴极端子Vca连接。
在这样的本发明的有机电场发光显示装置中，在由通过栅极线(G)施加的栅极信号(gate2)对漏极端子施加具有规定的电平的电压的情况下，所述驱动晶体管T3被开启。这样，驱动晶体管T3被开启时，由通过数据线(D)施加的数据信号(data3)对栅极端子施加数据电压，通过该数据电压可以改变流过驱动晶体管T3的源极端子的电流i2的量。其结果，流过源极端子的电流i2被传送到有机发光二极管OLED2，有机发光二极管OLED2与流过驱动晶体管T3的源极端子的电流i2的量成比例来发射光12。
以下，参照图5来说明在本发明的有机电场发光显示装置中具有的各像素的动作。
通过栅极线(G)，栅极信号(gate)被施加到驱动晶体管T3的漏极端子，通过数据线(D)，数据信号(data3)被施加到驱动晶体管T3的栅极端子。所述栅极信号(gate2)具有第一和第二电压(Vgl，Vgh)电平，数据信号(data3)具有第三电压(Vdl)和第四电压(Vdh)之间的电平。在栅极信号(gate)具有第二电压(Vgh)电平的情况下，所述第二电压(Vgh)通过被施加到驱动晶体管T3的漏极端子而被开启。由此，通过被施加到驱动晶体管T3的栅极端子的数据信号(data3)的电压电平，决定流过所述驱动晶体管T3的源极端子的电流i2的大小。这时，第二电压(Vgh)满足以下的条件，以便驱动晶体管T3在饱和(saturation)状态下动作。
Vgh≥Vdh-Vth
这里，Vth表示驱动晶体管T3的阈值电压。
这样，在驱动晶体管T3在饱和状态下动作的情况下，驱动晶体管T3的源极端子中流过的电流i2的大小由下式决定。
i 2 = k × Cg × W × ( Vgs - Vth ) 2 2 L
这里，k表示驱动晶体管T3中的载流子(carrier)的移动度(mobility)，Cg表示驱动晶体管T3中的栅极绝缘层的电容(capacitance)，W表示驱动晶体管T3中的沟道的宽度，L表示驱动晶体管T3中的沟道的长度，Vgs表示驱动晶体管T3中的栅极端子和源极端子之间的电压。
通过数据信号(data3)施加到所述驱动晶体管T3的栅极端子的电压电平可变，在所述的算式中，Vgs的值由数据信号(data3)决定。由此，驱动晶体管T3的源极端子中流过的电流i2的大小由所述数据信号(data3)决定，这样，由数据信号(data3)决定了大小的电流i2被施加到有机发光二极管OLED2。即，有机发光二极管OLED2与可由数据信号(data3)改变大小的电流i2成比例而发射光12。
在栅极信号(gate2)从第二电压(Vgh)电平改变为第一电压(Vgl)电平时，所述驱动晶体管T3被关闭，该驱动晶体管T3的源极端子中不流过电流i2。其结果，由于电流i2不被施加到有机发光二极管OLED2，所以有机发光二极管OLED2不发射光12。
这样，在一帧区间中间，在各像素动作后，在施加下一帧的数据信号(data3)之前，数据信号(data3)具有第三电压(Vdl)电平。这里，第三电压(Vdl)具有比驱动晶体管T3的阈值电压(Vth)低的电平。所述数据信号(data3)在具有第三电压(Vdl)电平的区间，驱动晶体管T3被完全关闭。其结果，有机电场发光显示装置中具有黑图案。
这样，在本发明的有机电场发光显示装置中，各像素通过具有一个驱动晶体管T3和有机发光二极管OLED2，各像素的结构被简化。通过将通过栅极线(G)施加的栅极信号(gate2)施加到所述驱动晶体管T3的漏极端子，使驱动晶体管T3开启和关闭。而且，通过将通过数据线(D)施加的数据信号(data3)施加到驱动晶体管T3的栅极端子，所述驱动晶体管T3的栅极电压电平可变，其结果，决定驱动晶体管T3的源极端子中流过的电流i2的大小。即，被传送到有机发光二极管OLED2的电流i2的大小由数据信号(data3)决定，所述有机发光二极管OLED2与电流i2的大小成比例来发射光12。通过这样的栅极信号(gate2)和数据信号(data3)，驱动晶体管T3存在开启和关闭的区间。因此，可以防止驱动晶体管的特性恶化，由于驱动晶体管T3在被关闭的区间有机发光二极管OLED2不发射光12，所以存在黑图案区间。

Claims (5)

1、一种有机电场发光显示装置，包括：
传送数据信号的多个数据线；与所述多个数据线交叉配置，传送栅极信号的多个栅极线；由所述多个数据线和所述多个栅极线形成的多个像素，其特征在于，
所述各像素包括：
晶体管，栅极端子与所述数据线连接，漏极端子与所述栅极线连接；以及
有机发光部件，按照流过所述晶体管的源极端子的电流量来发光。
2、如权利要求1所述的有机电场发光显示装置，其特征在于，
由通过所述数据线施加到所述晶体管的栅极端子的电压电平来决定流过所述晶体管的源极端子的电流量。
3、如权利要求2所述的有机电场发光显示装置，其特征在于，
通过所述栅极线对所述晶体管的漏极端子施加第一电压和第二电压，
在施加所述第一电压的情况下，所述晶体管的源极端子中不流过电流，
在施加所述第二电压的情况下，所述晶体管的源极端子中流过电流。
4、如权利要求3所述的有机电场发光显示装置，其特征在于，
所述第一电压具有比所述晶体管的阈值电压低的电压电平。
5、如权利要求3所述的有机电场发光显示装置，其特征在于，
所述第二电压具有比被施加到所述晶体管的栅极端子的电压和所述阈值电压的电压电平差高的电压电平。
CNB200510118503XA 2004-12-22 2005-10-27 有机电场发光显示装置 Active CN100555381C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR110366/04 2004-12-22
KR1020040110366A KR20060071678A (ko) 2004-12-22 2004-12-22 유기 전계발광 표시장치

Publications (2)

Publication Number Publication Date
CN1794329A true CN1794329A (zh) 2006-06-28
CN100555381C CN100555381C (zh) 2009-10-28

Family

ID=36595022

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200510118503XA Active CN100555381C (zh) 2004-12-22 2005-10-27 有机电场发光显示装置

Country Status (5)

Country Link
US (1) US20060132397A1 (zh)
JP (1) JP2006178420A (zh)
KR (1) KR20060071678A (zh)
CN (1) CN100555381C (zh)
TW (1) TWI280546B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008046427A (ja) * 2006-08-18 2008-02-28 Sony Corp 画像表示装置
KR102560028B1 (ko) * 2015-11-27 2023-07-26 엘지디스플레이 주식회사 디스플레이 장치의 화소 구동 회로 및 화소 구동 방법

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0757871A (ja) * 1993-08-19 1995-03-03 Hitachi Ltd 電場発光表示装置
JP3281848B2 (ja) * 1996-11-29 2002-05-13 三洋電機株式会社 表示装置
JP3879281B2 (ja) * 1998-11-06 2007-02-07 カシオ計算機株式会社 表示装置及び表示装置の駆動方法
JP4161454B2 (ja) * 1999-03-16 2008-10-08 カシオ計算機株式会社 表示素子及びその駆動方法、並びに表示装置
JP2000276075A (ja) * 1999-03-26 2000-10-06 Matsushita Electric Ind Co Ltd 電流制御型発光素子の駆動回路
JP3880244B2 (ja) * 1999-06-04 2007-02-14 キヤノン株式会社 発光装置
JP2001109432A (ja) * 1999-10-06 2001-04-20 Pioneer Electronic Corp アクティブマトリックス型発光パネルの駆動装置
JP2001183996A (ja) * 1999-12-22 2001-07-06 Tdk Corp 画像表示装置および薄膜表示素子の駆動方法
JP3757797B2 (ja) * 2001-01-09 2006-03-22 株式会社日立製作所 有機ｌｅｄディスプレイおよびその駆動方法
WO2002077958A1 (fr) * 2001-03-22 2002-10-03 Canon Kabushiki Kaisha Circuit servant a alimenter un element d'emission lumineuse a matrice active
JP2003271096A (ja) * 2002-03-15 2003-09-25 Sanyo Electric Co Ltd 有機ｅｌ表示装置およびその駆動方法
JP2004101767A (ja) * 2002-09-06 2004-04-02 Semiconductor Energy Lab Co Ltd 発光装置の駆動方法
JP2004126285A (ja) * 2002-10-03 2004-04-22 Pioneer Electronic Corp 有機エレクトロルミネッセンス素子の発光駆動回路及び表示装置
JP2004302289A (ja) * 2003-03-31 2004-10-28 Sanyo Electric Co Ltd 表示装置
US7046225B2 (en) * 2004-08-06 2006-05-16 Chen-Jean Chou Light emitting device display circuit and drive method thereof

Also Published As

Publication number Publication date
KR20060071678A (ko) 2006-06-27
CN100555381C (zh) 2009-10-28
TWI280546B (en) 2007-05-01
TW200622986A (en) 2006-07-01
US20060132397A1 (en) 2006-06-22
JP2006178420A (ja) 2006-07-06

Similar Documents

Publication Publication Date Title
US7616178B2 (en) Driving device and driving method for a light emitting device, and a display panel and display device having the driving device
KR100962768B1 (ko) 표시 장치 및 그 구동 제어 방법
US9666125B2 (en) Organic light-emitting diode circuit and driving method thereof
CN100452152C (zh) 像素电路、显示设备以及驱动像素电路的方法
EP3576080B1 (en) Pixel driving circuit, pixel driving method, display panel and display device
CN105931599B (zh) 像素驱动电路及其驱动方法、显示面板、显示装置
KR100854857B1 (ko) 발광구동회로 및 그 구동제어방법, 그리고 디스플레이유닛및 그 디스플레이 구동방법
CN100561556C (zh) 像素电路、显示装置以及控制像素电路的方法
CN100416639C (zh) 像素电路、显示设备和用于驱动像素电路的方法
US9153173B2 (en) Pixel structure and driving method thereof
US20090231308A1 (en) Display Device and Driving Method Thereof
US8587513B2 (en) Electro-optical device, method for driving electro-optical device, control circuit and electronic device
CN1855198A (zh) 有机电场发光显示装置
US20080136795A1 (en) Display Device and Driving Method Thereof
KR101338312B1 (ko) 유기전계 발광 디스플레이 장치 및 그 구동방법
CN106952618A (zh) 显示装置以及像素电路及其控制方法
JP4831392B2 (ja) 画素回路及び表示装置
KR20150046022A (ko) 표시 장치 및 전자 기기
CN1773592A (zh) 有机电场发光显示装置
US8581835B2 (en) Electro-optical device, method for driving electro-optical device, control circuit and electronic apparatus
US11527200B2 (en) Display device and driving method thereof
CN109559680B (zh) 有机发光二极管显示器及其操作方法
US20230196982A1 (en) Display panel and display apparatus including the same
CN100555381C (zh) 有机电场发光显示装置
CN101359448B (zh) 显示设备及其驱动方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: HYDIS TECHNOLOGY

Free format text: FORMER NAME: BOE DISPLAY SCIENCE + TECH CO., LTD.

CP03 Change of name, title or address

Address after: Gyeonggi Do, South Korea

Patentee after: Hydis Technologies Co., Ltd.

Address before: Gyeonggi Do, South Korea

Patentee before: Gyong Tong Bang Display Science & Technology Co.

EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20060628

Assignee: BOE Technology Group Co., Ltd.

Assignor: Hydis Technologies Co., Ltd.

Contract record no.: 2014990000768

Denomination of invention: Organic electroluminescent display device

Granted publication date: 20091028

License type: Common License

Record date: 20140924

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model