公开(公告)号：EP2407009A2

公开(公告)日：2012-01-18

申请号：EP10710679.1

申请日：2010-03-11

申请人： Koninklijke Philips Electronics N.V.

发明人： TER WEEME, Berend, J., W. ,  JANS, William, P., M., M. ,  ZIJLMAN, Theo, G. ,  AKDAG, Gazi ,  VAN DIJK, Erik, M., H., P. ,  JULICHER, Paul, J., M. ,  HONTELE, Bertrand, J., E.

IPC分类号： H05B33/08

CPC分类号： H05B33/0857 ,  H05B33/0806 ,  H05B33/0815 ,  H05B33/086

摘要： In a lighting device, sets of LEDs are employed using the natural characteristics of the LEDs to resemble incandescent lamp behavior when dimmed, thereby obviating the need for sophisticated controls. A first set of at least one LED produces light with a first color temperature, and a second set of at least one LED produces light with a second color temperature. The first set and the second set are connected in series, or the first set and the second set are connected in parallel, possibly with a resistive element in series with the first or the second set. The first set and the second set differ in temperature behavior, or have different dynamic electrical resistance. The light device produces light with a color point parallel and close to a blackbody curve.

公开(公告)号：EP1512134A2

公开(公告)日：2005-03-09

申请号：EP03702912.1

申请日：2003-02-18

申请人： Koninklijke Philips Electronics N.V.

发明人： VAN GORKOM, Gerardus, G., P. ,  DE ZWART, Siebe, T. ,  HOLTSLAG, Antonius, H., M. ,  JANS, William, P., M., M. ,  DE BONT, Sebastiaan

IPC分类号： G09G3/34

CPC分类号： G09G3/3473 ,  G09G3/2022 ,  G09G3/3406 ,  G09G2310/0237 ,  G09G2310/024 ,  G09G2310/08 ,  G09G2320/0233

摘要： The invention relates to a method of controlling a display screen, particularly a foil display built up of a number of lines, the display screen comprising at least one light source, a movable element, and selection means for locally bringing the movable element into contact with the light source, in which the selection means comprise row and column electrodes and means for applying control voltage signals to the row and column electrodes. The invention also relates to a display device comprising at least one light source, a movable element, and selection means for locally bringing the movable element into contact with the light source, in which the selection means comprise row and column electrodes and means for applying control voltage signals to the row and column electrodes. Because of a minimum switching time of pixels, not all pixels, i.e. lines can be activated immediately when the display screen is addressed line by line. To avoid this problem, the invention provides a novel addressing method comprising the step of addressing a group of lines or a part of a group of lines while the light source is switched off, followed by a step of illuminating the display screen for a predetermined interval by switching on the light source.

公开(公告)号：EP1614094A2

公开(公告)日：2006-01-11

申请号：EP04724092.4

申请日：2004-03-29

申请人： Koninklijke Philips Electronics N.V.

发明人： GIRALDO, Andrea ,  JOHNSON, Mark, T. ,  JANS, William, P., M., M. ,  LOS, Remco

IPC分类号： G09G3/32

CPC分类号： G09G3/3258 ,  G09G3/2022 ,  G09G3/2081 ,  G09G3/3233 ,  G09G3/325 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2310/0262 ,  G09G2320/0266

摘要： The display device (6) comprises a display (2) and generating means (10,8). The display (2) has a plurality of light emitting elements (3), and data lines (13) for providing pulse width modulation (PWM) signals to the light emitting elements (3). The generating means (10, 8) are coupled to the data lines (13) for generating, during time intervals (SF) of a frame period, at least a first non-zero emission level (L(V1;C1; I1)) of a light emitting element (3) during a first one of the time intervals (SF) and a second non-zero emission level (L(V2; C2; 12)) during a second one of the time intervals (SF).

摘要翻译： 显示装置（6）包括显示器（2）和发生装置（10,8）。 显示器（2）具有多个发光元件（3）和用于向发光元件（3）提供脉宽调制（PWM）信号的数据线（13）。 产生装置（10,8）耦合到数据线（13），用于在帧周期的时间间隔（SF）期间至少产生第一非零发射电平（L（V1; C1; I1）） 在所述时间间隔（SF）中的第一时间间隔（SF）和第二非零发射电平（L（V2; C2; 12））期间在所述时间间隔（SF）中的第二时间间隔期间发光元件（3）的发光。

公开(公告)号：EP2407009B1

公开(公告)日：2013-06-12

申请号：EP10710679.1

申请日：2010-03-11

申请人： Koninklijke Philips Electronics N.V.

发明人： TER WEEME, Berend, J., W. ,  JANS, William, P., M., M. ,  ZIJLMAN, Theo, G. ,  AKDAG, Gazi ,  VAN DIJK, Erik, M., H., P. ,  JULICHER, Paul, J., M. ,  HONTELE, Bertrand, J., E.

IPC分类号： H05B33/08

CPC分类号： H05B33/0857 ,  H05B33/0806 ,  H05B33/0815 ,  H05B33/086

公开(公告)号：EP1636781A1

公开(公告)日：2006-03-22

申请号：EP04736246.2

申请日：2004-06-07

申请人： Koninklijke Philips Electronics N.V.

发明人： VAN WOUDENBERG, Roel ,  DE BONT, Sebastiaan ,  JANS, William, P., M., M. ,  HOPPENBROUWERS, Johannis, L.

IPC分类号： G09G3/34

CPC分类号： G09G3/3473 ,  G09G3/2022 ,  G09G3/2029 ,  G09G2310/063

摘要： A method for addressing a display device comprising, during a first period, applying to one row electrode at a time an ON-select voltage (Vrow,selON) such that pixels connected to this row electrode can be switched ON by a data signal applied to the column electrodes, during a second period, applying the ON-select voltage (Vrow,seloN) to one row electrode at a time in reverse order compared to said first period, and in a time slot between said first and second periods, applying to all columns electrodes (28) an OFF voltage (Vcol,OFF) adapted to place all pixels in the OFF state. By applying the second voltage (Vcol,OFF) to all column electrodes (28) in the set, all pixels are switched OFF regardless of the row voltage levels, which makes it possible 10 to provide an addressing scheme which is very robust.

公开(公告)号：EP1451799A1

公开(公告)日：2004-09-01

申请号：EP02781514.1

申请日：2002-11-12

申请人： Koninklijke Philips Electronics N.V.

发明人： DEPOVERE, Geert, F., G. ,  DE BONT, Sebastiaan ,  JANS, William, P., M., M.

IPC分类号： G09G3/34 ,  G02B26/02

CPC分类号： G09G3/3473 ,  G09G3/2018 ,  G09G2310/0205 ,  Y10S385/901

摘要： The display device (1) comprises picture elements (5) arranged in substantially parallel lines (6) on a display panel (2), and selection means (3) for controlling the decoupling of light from an optical waveguide plate at the picture elements. The selection means (3) are arranged for multiline addressing of the picture elements (5). For displaying gray scales, image information (4) is decomposed into a number of subfields (13) which are displayed. The time efficiency of the addressing of picture elements (5) in lines (16) in the subfields (13) is increased, enabling the display device (1) to display a relative large number of gray scales. The method of operating a display device (1) is carried out when the device is in operation.