公开(公告)号：EP1016062B2

公开(公告)日：2015-09-16

申请号：EP98944539.0

申请日：1998-08-26

Applicant: Philips Lighting North America Corporation

Inventor： MUELLER, George, G. ,  Lys, Ihor A.

IPC: G09G3/32 ,  H05B37/02

CPC classification number: H05B33/0857 ,  A61N5/0616 ,  A61N5/0618 ,  A61N2005/0652 ,  F21K9/20 ,  F21S4/28 ,  F21V33/004 ,  F21V33/006 ,  F21W2111/027 ,  F21W2111/08 ,  F21Y2105/10 ,  F21Y2113/13 ,  F21Y2115/10 ,  G09G3/14 ,  G09G3/2014 ,  G09G3/32 ,  G09G3/3283 ,  G09G2300/06 ,  G09G2310/0272 ,  G09G2320/0626 ,  G09G2320/0666 ,  H05B33/0803 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/0863 ,  H05B37/02 ,  H05B37/0254 ,  H05B37/029 ,  Y02B20/346 ,  Y02B20/347

Abstract: Disclosed herein is a current control for a lighting assembly, which may be an LED lighting assembly, which may be a pulse width modulated ("PWM") current control or other form of current control where each current-controlled unit is uniquely addressable and capable of receiving illumination color information on a computer lighting network. In an embodiment, the invention includes a binary tree network configuration of lighting units (nodes). In another embodiment, the present invention comprises a heat dissipating housing, made out of a heat-conductive material, for housing the lighting assembly. The heat dissipating housing contains two stacked circuit boards holding respectively the power module and the light module. The light module is adapted to be conveniently interchanged with other light modules.

公开(公告)号：EP2715709A4

公开(公告)日：2015-04-08

申请号：EP11866291

申请日：2011-11-16

Applicant: IGNIS INNOVATION INC

Inventor： JAFFARI JAVID ,  CHAJI GHOLAMREZA ,  HEIDARI ABDORREZA

IPC: G09G3/20 ,  G09G3/00 ,  G09G3/32

CPC classification number: G09G3/006 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2310/0254 ,  G09G2310/0256 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/029 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0666 ,  G09G2360/145

Abstract: A local priority-based scanning scheme that focuses scanning to areas of a display panel whose measured characteristics are under continuous change (e.g., aging or relaxation). The algorithm identifies areas or regions needing compensation, using a current measurement from a single pixel in an area as a candidate to determine whether the rest of the region needs further compensation. The algorithm thus detects newly changed areas quickly, focusing time-consuming measurements on those areas that need high attention. Optionally, neighboring pixels sharing the same state (e.g., aging or overcompensated) as the measured pixel can be adjusted automatically given the likelihood that the neighboring pixels will also require compensation if the measured pixel needs compensation.

公开(公告)号：EP2688058A3

公开(公告)日：2014-12-10

申请号：EP13187593.2

申请日：2005-12-15

Applicant: Ignis Innovation Inc.

Inventor： Nathan, Arokia ,  Chaji, Gholamreza Reza ,  Servati, Peyman

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G01R19/0092 ,  G09G3/006 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/3258 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0693

Abstract: A system for a display array including a pixel circuit, the pixel circuit including a driving transistor, at least one switch transistor, a storage capacitor and a light emitting device. The system comprises a monitor for monitoring a current or voltage associated with the pixel circuit, a data process unit for controlling the operation of the display array, the data process unit being configured to extract information indicative of an aging of the pixel circuit, based on the monitored current or voltage and a driver controlled by the data process unit for providing programming and calibration data to the pixel circuit based on the extracted aging information.

公开(公告)号：EP1854338B1

公开(公告)日：2013-04-10

申请号：EP06705133.4

申请日：2006-02-09

Applicant: Ignis Innovation Inc.

Inventor： NATHAN, Arokia, ,  CHAJI, Reza, G.

IPC: G09G3/32 ,  H05B33/08

CPC classification number: G09G3/3283 ,  G09G3/3241 ,  G09G2310/0248 ,  G09G2320/0252 ,  G09G2320/0295 ,  G09G2330/06 ,  H05B33/08

Abstract: A load driving circuit for a load having a parasitic capacitance associated therewith is provided. The load being current programmed. The driving circuit has a data line having a voltage controlling the load, a feedback loop having a lowpass filter for monitoring the voltage of the data line; and a current source for providing a current to the data line; the current source being controlled by a signal line and an output from the lowpass filter.

公开(公告)号：EP2509062A1

公开(公告)日：2012-10-10

申请号：EP12174465.0

申请日：2010-11-12

Applicant: Ignis Innovation Inc.

Inventor： Chaji, Gholamreza ,  Nathan, Arokia ,  Lai, Jackson, Chi Sun

IPC: G09G3/32

CPC classification number: G09G5/18 ,  G09G3/3225 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0465 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0218 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/0693

Abstract: A circuit and driving technique to improve the display resolution of an AMOLED display. Sharing of switch transistors between several sub-pixels in the display leads to improved manufacturing yield by minimizing the number of transistors used. The method also allows for conventional sequential scan driving to be used. A technique to implement a stable and high impedance current sink or source onto a display substrate using a single device is also disclosed. Finally, a technique is disclosed for improving the spatial and/or temporal uniformity of a light-emitting display by providing a faster calibration of reference current sources and reducing the noise effect by improving the dynamic range, despite instability and non-uniformity of the transistor devices.

Abstract translation: 甲电路和驱动技术来提高AMOLED显示器的显示分辨率。 在显示几个子像素之间开关晶体管的共享通过最小化所使用的晶体管的数量导致改进的制造成品率。 因此，该方法允许用于待使用的常规顺序扫描驱动。 的技术来实现稳定的高阻抗电流吸收器或源使用走上游离缺失单个装置gibt盘的显示基板。 最后，一个技术是圆盘游离缺失通过提供的参考电流源更快的校正和提高动态范围降低噪声效果改善发光显示器的空间和/或时间的均匀性，尽管晶体管的不稳定和非均匀性 装置。

公开(公告)号：EP2498242A1

公开(公告)日：2012-09-12

申请号：EP12158563.2

申请日：2012-03-08

Applicant: Seiko Epson Corporation

Inventor： Fujita, Shin

IPC: G09G3/32 ,  H01L29/41 ,  H01L27/32

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2320/0209 ,  G09G2330/06 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3272 ,  H01L27/3276

Abstract: An electro-optical device which includes scanning lines (112) and data lines (114) intersecting with each other, pixel circuits which are provided corresponding to the intersection thereof, and shield wires (81a,81b). The pixel circuit includes a light emitting element, one transistor (140) which controls a current flowing to the light emitting element, and the other transistor (130) of which conduction state is controlled according to a scanning signal which is supplied to the scanning line, wherein the other transistor (130) selectively connects a data line to the gate electrode of the one transistor. The shield wires (81a,81b) are provided between the data line (114) and the one transistor (140) when seen in the plan view.

Abstract translation: 一种电光装置，包括彼此相交的扫描线（112）和数据线（114），对应于其相交的像素电路和屏蔽线（81a，81b）。 像素电路包括发光元件，控制流向发光元件的电流的一个晶体管（140）和根据提供给扫描线的扫描信号来控制导通状态的另一晶体管（130） ，其中所述另一个晶体管（130）选择性地将数据线连接到所述一个晶体管的栅电极。 当在平面图中看到时，屏蔽线（81a，81b）设置在数据线（114）和一个晶体管（140）之间。

公开(公告)号：EP2374122A4

公开(公告)日：2012-05-02

申请号：EP09831339

申请日：2009-12-08

Applicant: IGNIS INNOVATION INC

Inventor： CHAJI G REZA ,  NATHAN AROKIA

IPC: G09G3/20 ,  G09G3/3208

CPC classification number: G09G3/3233 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0465 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2310/0259 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/066 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2330/021 ,  G09G2330/023

公开(公告)号：EP1327972B1

公开(公告)日：2012-03-07

申请号：EP03000091.3

申请日：2003-01-08

Applicant: LG Display Co., Ltd.

Inventor： Kim, Hak Soo ,  Na, Young Sun ,  Kwan, Oh Kyoung

IPC: G09G3/32

CPC classification number: G09G3/3283 ,  G09G3/325 ,  G09G2310/027

公开(公告)号：EP2348502A3

公开(公告)日：2011-11-02

申请号：EP11003458.4

申请日：2003-01-14

Applicant: Semiconductor Energy Laboratory Co. Ltd.

Inventor： Kimura, Hajime ,  Tanada, Yoshifumi

IPC: G09G3/32

CPC classification number: H01L27/3276 ,  G09G3/20 ,  G09G3/2011 ,  G09G3/2022 ,  G09G3/2077 ,  G09G3/30 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3283 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  H01L27/3262 ,  H01L27/3265

Abstract: Display irregularities in light emitting devices, which develop due to dispersions per pixel in the threshold value of TFTs for supplying electric current to light emitting elements, are obstacles to increasing the image quality of the light emitting devices. An electric potential in which the threshold voltage of a TFT (105) is either added to or subtracted from the electric potential of a reset signal line (110) is stored in capacitor means (108). A voltage, in which the corresponding threshold voltage is added to an image signal, is applied to a gate electrode of a TFT (106). TFTs within a pixel are disposed adjacently, and dispersion in the characteristics of the TFTs does not easily develop. The threshold value of the TFT (105) is thus cancelled, even if the threshold values of the TFTs (106) differ per pixel, and a predetermined drain current can be supplied to an EL element (109).

Abstract translation: 由于在用于向发光元件供应电流的TFT的阈值中由于每像素的色散而发展的发光装置中的不规则性成为提高发光装置的图像质量的障碍。 在电容器装置（108）中存储将复位信号线（110）的电位加上或减去TFT（105）的阈值电压的电位。 其中相应的阈值电压被添加到图像信号的电压被施加到TFT（106）的栅电极。 像素内的TFT相邻配置，TFT的特性的偏差不容易发展。 即使TFT（106）的阈值对于每个像素不同，TFT（105）的阈值因此被抵消，并且预定的漏极电流可以被提供给EL元件（109）。

公开(公告)号：EP2348502A2

公开(公告)日：2011-07-27

申请号：EP11003458.4

申请日：2003-01-14

Applicant: Semiconductor Energy Laboratory Co. Ltd.

Inventor： Kimura, Hajime ,  Tanada, Yoshifumi

IPC: G09G3/32

CPC classification number: H01L27/3276 ,  G09G3/20 ,  G09G3/2011 ,  G09G3/2022 ,  G09G3/2077 ,  G09G3/30 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3283 ,  G09G3/3291 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/043 ,  H01L27/3262 ,  H01L27/3265

Abstract: Display irregularities in light emitting devices, which develop due to dispersions per pixel in the threshold value of TFTs for supplying electric current to light emitting elements, are obstacles to increasing the image quality of the light emitting devices. An electric potential in which the threshold voltage of a TFT (105) is either added to or subtracted from the electric potential of a reset signal line (110) is stored in capacitor means (108). A voltage, in which the corresponding threshold voltage is added to an image signal, is applied to a gate electrode of a TFT (106). TFTs within a pixel are disposed adjacently, and dispersion in the characteristics of the TFTs does not easily develop. The threshold value of the TFT (105) is thus cancelled, even if the threshold values of the TFTs (106) differ per pixel, and a predetermined drain current can be supplied to an EL element (109).

Abstract translation: 由于用于向发光元件提供电流的TFT的阈值中每像素的分散而发展的发光器件的显示不规则性是增加发光器件的图像质量的障碍。 在电容器装置（108）中存储有将TFT（105）的阈值电压加到或从复位信号线（110）的电位中减去的电位。 将相应的阈值电压加到图像信号上的电压施加到TFT（106）的栅电极。 像素内的TFT相邻配置，TFT的特性的分散不容易发展。 因此即使TFT（106）的阈值相对于每像素不同，也可以向EL元件（109）提供规定的漏极电流，TFT（105）的阈值被抵消。