公开(公告)号：EP2036069A1

公开(公告)日：2009-03-18

申请号：EP07765645.2

申请日：2007-06-26

申请人： Thomson Licensing

发明人： WEITBRUCH, Sébastien ,  DOSER, Ingo ,  THIEBAUD, Sylvain

IPC分类号： G09G3/32

CPC分类号： G09G3/3225 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0271

摘要： The present invention relates to an active matrix OLED (Organic Light Emitting Display) device. It comprises a matrix of luminous elements associated to different colour components (red, green,blue). According to the invention, the connection of the row driver (20) and/or data driver (30) to the luminous elements of the matrix is modified. Each output of the row driver is connected to luminous element associated to a same colour component (red or green or blue).

公开(公告)号：EP1630773A1

公开(公告)日：2006-03-01

申请号：EP05107754.3

申请日：2005-08-24

申请人： Thomson Licensing

发明人： THEBAULT, Cédric ,  CORREA, Carlos ,  WEITBRUCH, Sébastien

IPC分类号： G09G3/20 ,  G09G3/28

CPC分类号： G09G3/2055 ,  G09G3/28 ,  G09G2320/0247 ,  G09G2320/0276 ,  G09G2320/0285

摘要： The noise occurring when applying dithering on a transfer function shall be reduced. Therefore, a first output value and a second output value are associated (S1) to a discrete input value of the transfer function. On the basis of a given number of dithering bits, an intermediate value being equal to and/or lying between the first output value and the second output value and using the least number of dithering bits is chosen (S2). Finally this intermediate value is taken (S3) as an output value for the discrete input value. Thus, the dithering noise can be reduced tremendously.

摘要翻译： 降低对传递函数进行抖动时发生的噪声。 因此，第一输出值和第二输出值与传递函数的离散输入值相关联（S1）。 在给定数量的抖动位的基础上，选择等于和/或位于第一输出值和第二输出值之间并使用最少数量的抖动位的中间值（S2）。 最后，将该中间值（S3）作为离散输入值的输出值。 因此，抖动噪声可以大大降低。

公开(公告)号：EP1366484B1

公开(公告)日：2005-02-16

申请号：EP01978260.6

申请日：2001-07-23

申请人： Thomson Licensing S.A.

发明人： WEITBRUCH, Sébastien ,  ROTH, Harald

IPC分类号： G09G1/00 ,  G09G3/20

CPC分类号： G09G3/2944 ,  G09G3/296 ,  G09G2320/0626 ,  G09G2360/16

公开(公告)号：EP1334482A1

公开(公告)日：2003-08-13

申请号：EP01996849.4

申请日：2001-11-09

申请人： Thomson Licensing S.A.

发明人： WEITBRUCH, Sébastien ,  CORREA, Carlos ,  ZWING, Rainer

IPC分类号： G09G3/28

CPC分类号： G09G3/2033 ,  G09G3/2029 ,  G09G3/28 ,  G09G2320/0261 ,  G09G2320/0266 ,  G09G2320/106

摘要： The invention relates to a method for processing data of video pictures for displaying the pictures on a display device like a Plasma Display Panel. The existing false contour effect compensation methods which make a false contour compensation based on shifting sub-field code word entries along the direction of the motion vector of a current pixel, produce an artifact in the pictures, in case of object crossings. In the appearing area there is a lack of light generation. The invention solves this problem by checking whether an area exists in the picture which is currently hidden but will appear in a next frame and providing an adapted compensation method for "hole filling". The invention also gives a solution for an improved compensation method which is based on a dragging of sub-field code word entries along a motion vector direction to a current pixel.

公开(公告)号：EP1695329B1

公开(公告)日：2012-11-07

申请号：EP04804802.9

申请日：2004-12-14

申请人： Thomson Licensing

发明人： WEITBRUCH, Sébastien ,  THEBAULT, Cédric ,  DOSER, Ingo

IPC分类号： G09G3/28

CPC分类号： G09G3/2029 ,  G09G3/204 ,  G09G3/28 ,  G09G2320/0247 ,  G09G2320/0266 ,  G09G2320/0285 ,  G09G2320/103 ,  H04N7/0112 ,  Y10S348/91

公开(公告)号：EP2002418A1

公开(公告)日：2008-12-17

申请号：EP07727626.9

申请日：2007-04-02

申请人： Thomson Licensing

发明人： CORREA, Carlos ,  WEITBRUCH, Sébastien ,  ABDALLAH, Mohamed

IPC分类号： G09G3/28

CPC分类号： H04N1/64 ,  G09G3/2022 ,  G09G3/2051 ,  G09G2320/0266

摘要： The invention relates to a method and a device for coding video levels of pixels of a colour component of a picture to be displayed on a display device into code words. The invention is more particularly applicable to Plasma Display Panels (PDP) to improve the picture quality (grayscale enhancement, dynamic false contour reduction). The main idea of the invention is to automatically change the floor and ceiling levels used classically for dithering each pixel value depending on the neighboring pixels of the same color component. The size of the window determining the neighboring pixels is dependent on the definition of the wanted flat field size.

摘要翻译： 本发明涉及一种用于将要在显示装置上显示的图像的颜色分量的像素的视频水平编码为码字的方法和装置。 本发明更特别适用于等离子体显示面板（PDP），以提高图像质量（灰度增强，动态假轮廓降低）。 本发明的主要思想是自动改变经典地使用的地板和天花板水平，以根据相同颜色分​​量的相邻像素抖动每个像素值。 确定相邻像素的窗口的大小取决于所需平坦字段大小的定义。

公开(公告)号：EP1949356A1

公开(公告)日：2008-07-30

申请号：EP06819444.8

申请日：2006-11-13

申请人： Thomson Licensing

发明人： WEITBRUCH, Sébastien ,  DOSER, Ingo ,  THIEBAUD, Sylvain

IPC分类号： G09G3/32

CPC分类号： G09G3/3208 ,  G09G3/2029 ,  G09G5/02 ,  G09G2310/0224 ,  G09G2310/0235 ,  G09G2330/02 ,  G09G2330/028

摘要： The present invention relates to a method for displaying an image in an active matrix display device and more particularly in an active matrix OLED (Organic Light Emitting Display) display. The purpose of this invention is to increase the video dynamic range of each color component. The voltages applied to the OLED cells are based on reference voltages or currents. According to the invention, a different set of reference voltages is used for each colour component. To this end, the video frame is divided into at least three sub-frames and at least one colour component of the picture is addressed during each subframe with a set of reference voltages adapted to said color component.

公开(公告)号：EP1695328A1

公开(公告)日：2006-08-30

申请号：EP04804800.3

申请日：2004-12-14

申请人： Thomson Licensing

发明人： WEITBRUCH, Sébastien ,  THEBAULT, Cédric ,  CORREA, Carlos

IPC分类号： G09G3/28

CPC分类号： G09G3/2029 ,  G09G3/2946 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/16

摘要： The present invention relates to a method for processing data of a picture to be displayed on a display panel with persistent luminous elements in order to reduce load effect in said display means. The method comprises the following steps: - computing, for each subfield, the amount of activated luminous elements in each line of luminous elements of the display panel, called line load, - calculating, for each subfield, the maximal difference of line loads of two consecutive lines of the display panel, and- selecting, for each subfield, a sustain frequency in accordance with its maximal load difference in order to reduce line load effect.

公开(公告)号：EP1224655B1

公开(公告)日：2006-03-01

申请号：EP00953126.0

申请日：2000-07-31

申请人： Thomson Licensing

发明人： CORREA, Carlos ,  WEITBRUCH, Sébastien ,  ZWING, Rainer

IPC分类号： G09G3/28

CPC分类号： G09G3/2033 ,  G09G3/2029 ,  G09G3/288 ,  G09G2320/0266 ,  G09G2330/045 ,  G09G2360/16

摘要： Plasma Display Panels are becoming more and more interesting for TV technology. One important criterion for picture quality is the Peak White Enhancement Factor PWEF. In a previous patent application a method for power level control in a display with which the PWEF can be increased has been proposed. With an increased PWEF the problem of local overheating of plasma cells may occur. This invention proposes a protection circuit, which deals with this problem. For protecting the plasma display against local overheating, there is provided a method, which performs the steps of local power value determination, local temperature estimation, maximum local temperature determination and maximum power level limit determination. The power level limit influences the power level control process in the display device so that local overheating is avoided and the highest possible PWEF can be used. The invention also concerns a corresponding apparatus for carrying out the proposed method.

摘要翻译： 等离子显示器面板（PDP）对电视技术越来越有趣。 图片质量的一个重要标准是峰值白色增强因子PWEF。 在先前的专利申请中提出了一种用于PWEF可以增加的显示器中的功率电平控制的方法。 随着PWEF的增加，可能发生浆细胞局部过热的问题。本发明提出了一种处理该问题的保护电路。 为了保护等离子体显示器免受局部过热，提供了一种方法，其执行局部功率值确定（18），局部温度估计（19），最大局部温度确定（20）和最大功率电平限制确定（21） ）。 功率水平限制影响显示装置中的功率水平控制过程（22），从而避免局部过热并且可以使用尽可能高的PWEF。 本发明还涉及用于实施所提出的方法的相应设备。

公开(公告)号：EP1399911A1

公开(公告)日：2004-03-24

申请号：EP02740738.6

申请日：2002-06-20

申请人： Thomson Licensing S.A.

发明人： DOYEN, Didier ,  WEITBRUCH, Sébastien

IPC分类号： G09G3/28

CPC分类号： G09G3/2059 ,  G09G3/2029 ,  G09G3/2937 ,  G09G2310/0205 ,  G09G2320/0266

摘要： The present invention relates to a method of displaying a video image on a digital display device and particularly on a plasma display panel. According to the invention, the cells of the device change state at most once during the image display period and the subscans of this display period are two types. The subscans of the first type address two adjacent rows of the panel simultaneously and the subscans of the second type address each row of cells of the panel individually. In certain cases, the grey level delivered to the cells is modified before display. For two neighbouring cells sharing the same subscans of the second type and displaying the grey levels A and B, one of the grey levels, A or B, is modified if the first subscan for which one of the cells changes state is a subscan of the first type.