公开(公告)号：US08508524B2

公开(公告)日：2013-08-13

申请号：US12672486

申请日：2008-08-04

申请人： Hugues Lebrun ,  Gérard Voisin

发明人： Hugues Lebrun ,  Gérard Voisin

IPC分类号： G06F3/038

CPC分类号： G09G3/006 ,  G09G3/3607 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2310/027 ,  G09G2330/02 ,  G09G2380/12

摘要： An integrated method of detecting an image defect in an LCD screen consists in verifying the consumption of current on a power supply bus of the image display means (row driver 20, column driver 30, counter electrode CE), during capacitive charges or discharges of the selection lines Li and/or columns ColRj. The method comprises the integration of a current measurement chain comprising a measurement resistor Rm on the power supply bus and measurement 41 and comparison 42 circuits providing outside the screen a detection signal Sd which is processed by an external circuit for safety management.

摘要翻译： 用于检测LCD屏幕中的图像缺陷的集成方法包括在电容充电或放电期间验证图像显示装置（行驱动器20，列驱动器30，对电极CE）的电源总线上的电流消耗 选择线Li和/或列ColRj。 该方法包括在电源总线上包括测量电阻器Rm的电流测量链和测量41的集成以及在屏幕外部提供由用于安全管理的外部电路处理的检测信号Sd的比较42电路。

公开(公告)号：US08508457B2

公开(公告)日：2013-08-13

申请号：US12676898

申请日：2008-09-08

申请人： Thierry Kretz ,  Gérard Voisin

发明人： Thierry Kretz ,  Gérard Voisin

IPC分类号： G09G3/36

CPC分类号： G09G3/20 ,  G09G3/3677 ,  G09G2300/08 ,  G09G2310/0267 ,  G09G2310/0286 ,  G11C19/184 ,  G11C19/28

摘要： A shift register driven by two complementary clock signals is integrated on an active-matrix substrate of a flat screen for controlling selection of rows of image points of the flat screen is disclosed. The shift register includes a control transistor driven by one of the clock signals, and connected between this clock signal and an output node connected to a corresponding row. The shift register also includes a capacitor connected between an internal node connected to the gate of the control transistor. The output node is discharged each time the flat screen starts.

摘要翻译： 由两个互补的时钟信号驱动的移位寄存器集成在平面屏幕的有源矩阵基板上，用于控制平面屏幕的图像行的选择。 移位寄存器包括由时钟信号之一驱动的控制晶体管，并连接在该时钟信号和连接到相应行的输出节点之间。 移位寄存器还包括连接在连接到控制晶体管的栅极的内部节点之间的电容器。 每次平面屏幕启动时，输出节点都被放电。

公开(公告)号：US08570311B2

公开(公告)日：2013-10-29

申请号：US12676901

申请日：2008-08-25

申请人： Philippe Airault ,  Laurent Canal ,  Gérard Voisin

发明人： Philippe Airault ,  Laurent Canal ,  Gérard Voisin

IPC分类号： G09G5/00

CPC分类号： G09G3/3614 ,  G09G2310/06

摘要： The general field of the invention is that of display devices including a liquid-crystal matrix screen composed of elementary pixels, said screen including at least a first electrode used as voltage reference and called the “backplane,” a second electrode in the form of a matrix electronic network delivering the drive voltages for controlling the pixels and control electronics for said electrodes, said screen being used in the so-called “normally black” mode, that is to say that in the absence of applied voltages, the optical transmission of the pixels is substantially zero. In the device according to the invention, the “backplane” drive voltage is a variable periodic voltage, the amplitude of variation of this voltage being sufficient so that in the absence of voltage on the second electrode, the optical transmission of the pixels is sufficient to be detected by an observer.

摘要翻译： 本发明的一般领域是包括由基本像素构成的液晶矩阵屏的显示装置，所述屏幕至少包括用作电压基准的第一电极，称为“背板”，第二电极为 矩阵电子网络传送用于控制像素的驱动电压和用于所述电极的控制电子装置，所述屏幕以所谓的“常黑”模式使用，也就是说，在没有施加电压的情况下，光传输 像素基本上为零。 在根据本发明的装置中，“背板”驱动电压是可变的周期性电压，该电压的变化幅度是足够的，使得在没有第二电极上的电压的情况下，像素的光传输足以 由观察者检测。