公开(公告)号：US20130088416A1

公开(公告)日：2013-04-11

申请号：US13621437

申请日：2012-09-17

申请人： Euan C. Smith ,  Aleksandra Rankov

发明人： Euan C. Smith ,  Aleksandra Rankov

IPC分类号： G09G3/32

CPC分类号： G09G3/3233 ,  G09G2300/0861 ,  H01L27/3255

摘要： We describe a method of driving an OLED display. The OLED display comprises a plurality of pixel driver circuits on chiplets, each pixel driver circuit comprising an output transistor for driving a first connection of an associated OLED pixel. A cascode transistor on the chiplet is coupled between the output transistor and the first connection of said associated OLED pixel. A power supply is provided to the chiplet, defining a chiplet voltage range. A second connection of the associated OLED pixel is connected to an OLED voltage outside said chiplet voltage range. The OLED pixel is then driven using the pixel driver circuit on the chiplet over an OLED voltage range greater than said chiplet voltage range. In some preferred embodiments a drain connection of the cascode transistor is set at a voltage below a ground or negative (Vss) power supply to a chiplet.

摘要翻译： 我们描述了一种驱动OLED显示器的方法。 OLED显示器包括在小芯片上的多个像素驱动器电路，每个像素驱动器电路包括用于驱动相关联的OLED像素的第一连接的输出晶体管。 小芯片上的共源共栅晶体管被耦合在输出晶体管和所述相关联的OLED像素的第一连接之间。 电源被提供给小芯片，定义了一个小电压电压范围。 相关联的OLED像素的第二连接被连接到所述小电压电压范围之外的OLED电压。 然后使用大于所述小电压电压范围的OLED电压范围上的小芯片上的像素驱动器电路来驱动OLED像素。 在一些优选实施例中，共源共栅晶体管的漏极连接被设置在低于小电流的接地或负（Vss）电源的电压。

公开(公告)号：US08314756B2

公开(公告)日：2012-11-20

申请号：US12740541

申请日：2008-10-29

申请人： Aleksandra Rankov ,  Euan C. Smith

发明人： Aleksandra Rankov ,  Euan C. Smith

IPC分类号： G09G3/30 ,  G09G3/32 ,  G09G3/36 ,  G09G5/00 ,  G09G5/10 ,  G06F3/038 ,  H01L29/66

CPC分类号： G09G3/3283 ,  G09G3/3233 ,  G09G3/325 ,  G09G3/3291 ,  G09G2300/0465 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0876 ,  G09G2310/0256 ,  G09G2320/043 ,  G09G2360/148

摘要： This invention relates to pixel driver circuits for active matrix optoelectronic devices, in particular OLED (organic light emitting diodes) displays. We describe an active matrix optoelectronic device having a plurality of active matrix pixels each said pixel including a pixel circuit comprising a thin film transistor (TFT) for driving the pixel and a pixel capacitor for storing a pixel value, wherein said TFT comprises a TFT with a floating gate.

摘要翻译： 本发明涉及用于有源矩阵光电器件，特别是OLED（有机发光二极管）显示器的像素驱动器电路。 我们描述了具有多个有源矩阵像素的有源矩阵光电器件，每个所述像素包括像素电路，像素电路包括用于驱动像素的薄膜晶体管（TFT）和用于存储像素值的像素电容器，其中所述TFT包括具有 一个浮动门。

公开(公告)号：US20120007068A1

公开(公告)日：2012-01-12

申请号：US13241131

申请日：2011-09-22

申请人： Euan C. Smith ,  Matthew Roberts ,  William Young ,  Clare Louise Foden

发明人： Euan C. Smith ,  Matthew Roberts ,  William Young ,  Clare Louise Foden

IPC分类号： H01L51/52 ,  H01L51/56

CPC分类号： H01L51/5234 ,  H01L51/5206 ,  H01L2251/5315

摘要： An organic light emissive device comprising: a first electrode; a second electrode; and an organic light emissive region between the first and second electrodes comprising an organic light emissive material which has a peak emission wavelength, wherein at least one of the electrodes is transparent and comprises a composite of a charge injecting metal and another material which is codepositable with the charge injecting metal, the other material having a different refractive index to that of the charge injecting metal and wherein the other material has a lower degree of quenching at the peak emission wavelength than the charge injecting metal whereby quenching of excitons by the at least one electrode is reduced, the charge injecting metal comprising either a low work function metal having a work function of no more than 3.5 eV or a high work function metal having a work function of no less than 4.5 eV.

摘要翻译： 一种有机发光装置，包括：第一电极; 第二电极; 以及第一和第二电极之间的有机发光区域，其包括具有峰值发射波长的有机发光材料，其中至少一个电极是透明的，并且包括电荷注入金属和可与 所述电荷注入金属，所述另一种材料具有与所述电荷注入金属的折射率不同的折射率，并且其中所述另一种材料在峰值发射波长处具有比所述电荷注入金属低的淬灭程度，由此使所述至少一个激子的猝灭 电极被还原，电荷注入金属包括功函数不超过3.5eV的低功函数金属或功函数不低于4.5eV的高功函金属。

公开(公告)号：US20110163340A1

公开(公告)日：2011-07-07

申请号：US12995658

申请日：2009-06-02

申请人： Euan C. Smith

发明人： Euan C. Smith

IPC分类号： H01L51/52 ,  H01L51/56

CPC分类号： H01L51/5275 ,  H01L51/524 ,  H01L51/5262 ,  H01L2251/5315

摘要： An organic electroluminescent device comprising: a substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light emitting layer disposed between the first and the second electrode, the second electrode being transparent to light emitted by the light emitting layer; a glass or transparent plastic encapsulant disposed over, and spaced apart from, the second electrode, defining a cavity therebetween; and a cavity filling material disposed within the cavity, the cavity filling material extending from a bottom side of the cavity to a top side of the cavity, the cavity filling material having an optical structure disposed therein.

摘要翻译： 一种有机电致发光器件，包括：衬底; 设置在所述衬底上用于注入第一极性的电荷的第一电极; 设置在所述第一电极上方的用于注入与所述第一极性相反的第二极性的电荷的第二电极; 设置在第一和第二电极之间的有机发光层，第二电极对于由发光层发射的光是透明的; 设置在所述第二电极上方并与所述第二电极间隔开的玻璃或透明塑料密封剂，在其间限定空腔; 以及设置在所述空腔内的空腔填充材料，所述空腔填充材料从所述空腔的底侧延伸到所述空腔的顶侧，所述空腔填充材料具有设置在其中的光学结构。

公开(公告)号：US07956531B2

公开(公告)日：2011-06-07

申请号：US10587602

申请日：2005-01-24

申请人： Euan C. Smith

发明人： Euan C. Smith

IPC分类号： G09G3/30

CPC分类号： G09G3/3216 ,  G09G3/3225 ,  G09G2300/0452 ,  G09G2330/021 ,  H01L27/3204 ,  H01L27/3216 ,  H01L27/3218 ,  H01L27/3244 ,  H01L27/3276 ,  H05B33/0896 ,  Y02B20/36

摘要： An organic light emitting diode (OLED) display device is described, the display device having a plurality of pixels each comprising at least two sub-pixels of different types, a first sub-pixel type comprising an OLED device including a first type of OLED material and a second sub-pixel type comprising an OLED device including a second type of OLED material, and wherein at least one of said first and second types of sub-pixel comprises a plurality of series-connected OLED devices. Employing series-connected sub-pixels where different types of OLED material are used for a display such as a color, active matrix OLED display facilitates balancing sub-pixel drive voltages and hence enables the production of display devices with improved efficiency.

摘要翻译： 描述了一种有机发光二极管（OLED）显示设备，该显示设备具有多个像素，每个像素包括不同类型的至少两个子像素，第一子像素类型包括OLED器件，其包括第一类型的OLED材料 以及包括包括第二类型OLED材料的OLED器件的第二子像素类型，并且其中所述第一和第二类型子像素中的至少一个包括多个串联连接的OLED器件。 采用串联连接的子像素，其中不同类型的OLED材料用于诸如彩色有源矩阵OLED显示器的显示器，有助于平衡子像素驱动电压，从而使得能够以更高的效率生产显示装置。

公开(公告)号：US07834824B2

公开(公告)日：2010-11-16

申请号：US10518182

申请日：2003-06-11

申请人： Paul R. Routley ,  Euan C. Smith

发明人： Paul R. Routley ,  Euan C. Smith

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/325 ,  G09G3/3291 ,  G09G2300/0417 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/088 ,  G09G2320/029 ,  G09G2320/045 ,  G09G2330/021 ,  G09G2360/148

摘要： This disclosure generally relates to display driver circuits for electro-optic displays, and more particularly relates to circuits and methods for driving active matrix organic light emitting diode displays with greater efficiency. A display driver for an electroluminescent display, the display including a plurality of electroluminescent display elements each associated with a display element driver circuit, each display element driver circuit including a drive transistor having a control connection for driving the associated display element in accordance with a voltage on the control connection, the display driver including at least one display element brightness controller to provide an output to drive a control connection to control the electroluminescent output from a display element; a voltage sensor to sense the voltage on a control connection; and a power controller for controlling an adjustable power supply for providing an adjustable voltage to the electroluminescent display to power said drive transistors for driving said display elements, the power controller being configured to provide a control signal to adjust said power supply voltage in response to said sensed voltage.

摘要翻译： 本公开一般涉及用于电光显示器的显示器驱动器电路，更具体地涉及用于以更高效率驱动有源矩阵有机发光二极管显示器的电路和方法。 一种用于电致发光显示器的显示驱动器，所述显示器包括多个与显示元件驱动电路相关联的电致发光显示元件，每个显示元件驱动电路包括驱动晶体管，所述驱动晶体管具有用于根据电压驱动所述相关联的显示元件的控制连接 在所述控制连接上，所述显示驱动器包括至少一个显示元件亮度控制器，以提供输出来驱动控制连接以控制来自显示元件的电致发光输出; 用于感测控制连接上的电压的电压传感器; 以及功率控制器，用于控制可调电源，以向电致发光显示器提供可调电压以为所述驱动晶体管供电，以驱动所述显示元件，所述功率控制器被配置为提供控制信号，以响应于所述电源电压调节所述电源电压 感应电压。

公开(公告)号：US20100245401A1

公开(公告)日：2010-09-30

申请号：US12680444

申请日：2008-09-26

申请人： Euan C. Smith ,  David S. Warren ,  Richard Alan Page ,  Stefan Wurster ,  Barry Thompson

发明人： Euan C. Smith ,  David S. Warren ,  Richard Alan Page ,  Stefan Wurster ,  Barry Thompson

IPC分类号： G09G5/00

CPC分类号： G09G3/3216 ,  G09G3/2014 ,  G09G2310/0208 ,  G09G2320/043 ,  G09G2330/025

摘要： A method of driving an electro-optic display comprising providing a current source, digitally modulating the current source and generating a modulated digital signal, and converting the modulated digital signal into an effective analog drive signal so that the display pixels receive an effective analog drive current, wherein the internal capacitance of the electro-optic display smooths the digitally modulated signal and generates the effective analog drive signal.

摘要翻译： 一种驱动电光显示器的方法，包括提供电流源，数字调制电流源并产生调制数字信号，并将调制的数字信号转换成有效的模拟驱动信号，使得显示像素接收有效的模拟驱动电流 ，其中电光显示器的内部电容平滑数字调制信号并产生有效的模拟驱动信号。

公开(公告)号：US07474288B2

公开(公告)日：2009-01-06

申请号：US10512379

申请日：2003-04-22

申请人： Euan C. Smith ,  Paul R. Routley ,  William Goodchild

发明人： Euan C. Smith ,  Paul R. Routley ,  William Goodchild

IPC分类号： G09G3/32

CPC分类号： G09G3/3216 ,  G09G2310/0213 ,  G09G2310/04 ,  G09G2320/0209 ,  G09G2330/021 ,  G09G2360/18

摘要： Display driver circuits are described for driving organic light-emitting diode displays, particularly passive matrix displays, with greater efficiency. Display driver circuitry includes a frame memory interface for reading data from a frame memory for presentation on a passive matrix OLED display. A blank line identifier identifies one or more substantially blank rows of pixels defined by the data in the frame memory and the control circuitry skips past these rows when the passive matrix display is addressed. When blank lines are skipped the apparent brightness of the remaining lines increases and thus preferably the control circuitry includes a power-controller for reducing a power supply to the display in proportion to the number of skipped lines. The disclosed circuitry is particularly suited to a display driver providing a controlled current drive.

摘要翻译： 描述显示驱动器电路用于以更高的效率驱动有机发光二极管显示器，特别是无源矩阵显示器。 显示器驱动器电路包括用于从帧存储器读取数据以呈现在无源矩阵OLED显示器上的帧存储器接口。 空白行标识符识别由帧存储器中的数据定义的一个或多个基本空白行的像素，并且当无源矩阵显示被寻址时，控制电路跳过这些行。 当空白行被跳过时，剩余行的表观亮度增加，因此优选地，控制电路包括功率控制器，用于与跳过的行数成比例地减少对显示器的电力供应。 所公开的电路特别适用于提供受控电流驱动器的显示驱动器。

公开(公告)号：US20080265751A1

公开(公告)日：2008-10-30

申请号：US11659930

申请日：2005-08-10

申请人： Euan C. Smith ,  Matthew Roberts ,  William Young ,  Clare Louise Foden

发明人： Euan C. Smith ,  Matthew Roberts ,  William Young ,  Clare Louise Foden

IPC分类号： H01L51/52 ,  H01J1/63 ,  B05D5/12 ,  C23C14/34

CPC分类号： H01L51/5234 ,  H01L51/5206 ,  H01L2251/5315

摘要： An organic light emissive device comprising: a first electrode; a second electrode; and an organic light emissive region between the first and second electrodes comprising an organic light emissive material which has a peak emission wavelength, wherein at least one of the electrodes is transparent and comprises a composite of a charge injecting metal and another material which is codepositable with the charge injecting metal, the other material having a different refractive index to that of the charge injecting metal and wherein the other material has a lower degree of quenching at the peak emission wavelength than the charge injecting metal whereby quenching of excitons by the at least one electrode is reduced, the charge injecting metal comprising either a low work function metal having a work function of no more than 3.5 eV or a high work function metal having a work function of no less than 4.5 eV.

摘要翻译： 一种有机发光装置，包括：第一电极; 第二电极; 以及第一和第二电极之间的有机发光区域，其包括具有峰值发射波长的有机发光材料，其中至少一个电极是透明的，并且包括电荷注入金属和可与 所述电荷注入金属，所述另一种材料具有与所述电荷注入金属的折射率不同的折射率，并且其中所述另一种材料在峰值发射波长处具有比电荷注入金属低的淬灭程度，由此使所述至少一个激子的猝灭 电极被还原，电荷注入金属包括功函数不超过3.5eV的低功函数金属或功函数不低于4.5eV的高功函金属。

公开(公告)号：US09136504B2

公开(公告)日：2015-09-15

申请号：US11659560

申请日：2005-08-04

申请人： Euan C. Smith ,  Faisal Qureshi ,  Jan Jongman

发明人： Euan C. Smith ,  Faisal Qureshi ,  Jan Jongman

IPC分类号： H01L35/24 ,  H01L51/52 ,  H01L27/32 ,  H01L33/44 ,  H01L33/50 ,  H01L21/027

CPC分类号： H01L51/5265 ,  H01L21/0276 ,  H01L27/3209 ,  H01L27/322 ,  H01L33/44 ,  H01L33/504 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5231 ,  H01L51/5271 ,  H01L2924/12041

摘要： An organic electroluminescent device comprising: a transparent substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light-emitting layer disposed between the first and the second electrode, wherein the second electrode is reflective, the first electrode is transparent or semi-transparent, and one or more intermediate layers of dielectric material with a refractive index greater than 1.8 or a metal material is disposed between the substrate and the first electrode forming a semi-transparent mirror whereby a microcavity is provided between the reflective second electrode and the semi-transparent mirror, all the intermediate layers disposed between the substrate and the first electrode having a surface nearest the organic light-emitting layer not more than 150 nm from a surface of the first electrode nearest the organic light-emitting layer.

摘要翻译： 一种有机电致发光器件，包括：透明衬底; 设置在所述衬底上用于注入第一极性的电荷的第一电极; 设置在所述第一电极上方的用于注入与所述第一极性相反的第二极性的电荷的第二电极; 设置在第一和第二电极之间的有机发光层，其中第二电极是反射性的，第一电极是透明或半透明的，以及一个或多个折射率大于1.8的介电材料中间层或 金属材料设置在基板和第一电极之间，形成半透明反射镜，由此在反射第二电极和半透明反射镜之间提供微腔，所有设置在基板和第一电极之间的中间层具有最接近的表面 所述有机发光层从所述第一电极的离所述有机发光层最近的表面不超过150nm。