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    • 4. 发明申请
    • ELECTROPHORETIC DISPLAY PANEL
    • 电子显示面板
    • WO2004068449A1
    • 2004-08-12
    • PCT/IB2004/050017
    • 2004-01-13
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.JOHNSON, Mark, T.HENZEN, Alexander, V.CORNELISSEN, Hugo, J.ZHOU, Guofu
    • JOHNSON, Mark, T.HENZEN, Alexander, V.CORNELISSEN, Hugo, J.ZHOU, Guofu
    • G09F9/37
    • G09G3/344G02F1/167G02F2201/12G09F9/37G09F9/372G09G3/3446G09G2320/0233G09G2320/029
    • The electrophoretic display panel (1) for displaying a picture corresponding to image information has drive means (100) which are able to control for each picture element (2) the potentials, thereby being able to change the position of the particles (6) based on the image information. Furthermore, the display panel (1) has monitoring means (101) which are able to generate for each picture element (2) actual position information indicative for the actual position of the particles (6), and control means (103) which are able to control for each picture element (2) the drive means (100) in dependence of the actual position information and the image information to reduce a difference between the position of the particles (6) and the position off the particles (6) corresponding to the image information. For the display panel (1) to be able to provide a picture of relatively high quality even at relatively low or non­uniform intensities of the ambient light, the monitoring means (101) comprise electrical means (102) which are able to generate for each picture element (2) the actual position information based on an electrical property of the respective picture element (2).
    • 用于显示与图像信息相对应的图像的电泳显示面板(1)具有驱动装置(100),其能够控制每个图像元素(2)的电位,从而能够基于粒子(6)的位置改变 对图像信息。 此外,显示面板(1)具有能够为每个图像元素(2)生成指示粒子(6)的实际位置的实际位置信息的监视装置(101),以及能够 根据实际位置信息和图像信息来控制每个图像元素(2)驱动装置(100),以减少颗粒(6)的位置与离开颗粒(6)的位置之间的差异 图像信息。 对于显示面板(1)即使在环境光的相对较低或不均匀的强度下也能够提供相对高质量的图像,监视装置(101)包括能够为每个图像生成的电气装置(102) 元件(2)基于各个图像元素(2)的电气特性的实际位置信息。
    • 5. 发明申请
    • METHOD AND APPARATUS FOR IMPROVING BRIGHTNESS IN AN ELECTROPHORETIC DISPLAY
    • 用于改善电泳显示中亮度的方法和装置
    • WO2005050605A1
    • 2005-06-02
    • PCT/IB2004/052379
    • 2004-11-11
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.JOHNSON, Mark, T.HENZEN, Alexander, V.ZHOU, Guofu
    • JOHNSON, Mark, T.HENZEN, Alexander, V.ZHOU, Guofu
    • G09G3/34
    • G09G3/344G09G2320/0204G09G2320/0606G09G2320/0626G09G2320/066
    • An electrophoretic display (1) comprising an electrophoretic medium (5) comprising a plurality of negatively charged black particles (6) and a plurality of positively charged white particles (6) in fluid. The average dc value of the drive voltages is arranged to be non-zero, so as to maximise brightness or contrast ratio of the displayed image, as required. If the average dc value of the drive voltages has a positive polarity, such that a small positive voltage is applied to the pixel electrode (3), although the white level may be less bright, the black level becomes darker, thereby increasing the contrast ratio during the driving sequence, which is obviously advantageous if the contrast ratio is the most important display parameter. If, on the other hand, maintaining or increasing a maximum brightness level is of key importance, then a drive sequence where the average dc value of all drive waveforms has a negative polarity is applied, so as to apply a small, controlled negative voltage to the pixel electrode (3). In this case, although the black level may become less dark, the white level becomes significantly brighter, such that the brightness is increased during the driving sequence, which is obviously advantageous if brightness is the most important display parameter.
    • 一种电泳显示器(1),包括电泳介质(5),其包括多个带负电荷的黑色颗粒(6)和多个带正电荷的白色颗粒(6)。 驱动电压的平均直流值被布置为非零,以便根据需要使显示图像的亮度或对比度最大化。 如果驱动电压的平均直流值具有正极性,使得对像素电极(3)施加小的正电压,尽管白电平可能不太亮,但是黑电平变得更暗,从而增加对比度 在驱动顺序期间,如果对比度是最重要的显示参数,这显然是有利的。 另一方面,如果保持或增加最大亮度水平是至关重要的,则施加所有驱动波形的平均直流值为负极性的驱动序列,以便将小的受控负电压施加到 像素电极(3)。 在这种情况下,尽管黑色电平可能变得较暗,但白色电平变得明显更亮,使得在驱动序列期间亮度增加,如果亮度是最重要的显示参数,这显然是有利的。
    • 6. 发明申请
    • ELECTROPHORETIC DISPLAY PANEL
    • 电子显示面板
    • WO2004001497A1
    • 2003-12-31
    • PCT/IB2003/002735
    • 2003-06-12
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.ZHOU, GuofuHENZEN, Alexander, V.JAK, Martin, J., J.JOHNSON, Mark, T.
    • ZHOU, GuofuHENZEN, Alexander, V.JAK, Martin, J., J.JOHNSON, Mark, T.
    • G02F1/167
    • G02F1/167G02F1/0147
    • An electrophoretic display panel (1) for displaying pictures has a first and a second opposed substrate (8,9), an electrophoretic medium (5) between the substrates (8,9), a plurality of pixels (2) and drive means (100). The electrophoretic medium (5) has charged particles (6) in a fluid. The first and the second substrate (8,9) have for each pixel (2) a first and a second electrode (3,4), for receiving a potential difference. The potential difference determines positions of the charged particles (6). The drive means (100) are able to control the potential difference of each pixel (2). The switching time is the time interval to change, in operation, the position of the charged particles (6) between the first and the second electrode (3,4). For the display panel (1) to be able to have a reproducible switching time the display panel (1) further has heating means (13) for heating the medium (5) to a medium temperature in the range of 30 °C and 70 °C.
    • 用于显示图像的电泳显示面板(1)具有第一和第二相对基板(8,9),基板(8,9)之间的电泳介质(5),多个像素(2)和驱动装置 100)。 电泳介质(5)在流体中具有带电粒子(6)。 第一和第二衬底(8,9)对于每个像素(2)具有用于接收电位差的第一和第二电极(3,4)。 电位差确定带电粒子(6)的位置。 驱动装置(100)能够控制每个像素(2)的电位差。 切换时间是在操作中改变第一和第二电极(3,4)之间的带电粒子(6)的位置的时间间隔。 为了使显示面板(1)能够具有可再现的切换时间,显示面板(1)还具有用于将介质(5)加热至30℃至70℃的介质温度的加热装置(13) C。
    • 9. 发明申请
    • DRIVING AN ACTIVE MATRIX DISPLAY
    • 驱动有源矩阵显示
    • WO2004023447A1
    • 2004-03-18
    • PCT/IB2003/003469
    • 2003-08-04
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.JOHNSON, Mark, T.HENZEN, Alexander, V.
    • JOHNSON, Mark, T.HENZEN, Alexander, V.
    • G09G3/34
    • G09G3/344G09G3/2011G09G3/2018G09G3/2081G09G2300/0809G09G2300/0842G09G2310/0262G09G2310/063G09G2330/02
    • The active matrix display comprises a matrix of display pixels (10) which are associated with intersections of crossing select electrodes (11) and control electrodes (12). A select driver (2) supplies a select signal (SE) to the select electrodes (11). A control driver (3) supplies control signals (DA) to the control electrodes (12). A voltage level generator (5) supplies a plurality of different voltage levels (VBi) to level electrodes (13) of the active matrix display. The active matrix display further comprises select circuits (6) which are arranged to selectively couple the voltage levels (VBi) on the voltage level electrodes (13) to the pixels (10) to supply one of the plurality of different voltage levels (VBi) to a particular one of the pixels (10) in dependence on the select signal (SE) and the control signal (DA) associated with this particular pixel (10). The select signal (SE) indicates whether the particular pixel (10) is selected and the control signal (DA) indicates which one of said plurality of different voltage levels (VBi) has to be supplied to the particular one of the pixels (10) when selected.
    • 有源矩阵显示器包括与交叉选择电极(11)和控制电极(12)的交叉点相关联的显示像素(10)的矩阵。 选择驱动器(2)向选择电极(11)提供选择信号(SE)。 控制驱动器(3)向控制电极(12)供应控制信号(DA)。 电压电平发生器(5)向有源矩阵显示器的电平电极(13)提供多个不同的电压电平(VBi)。 有源矩阵显示还包括选择电路(6),其被选择性地将电压电平电极(13)上的电压电平(VBi)耦合到像素(10)以提供多个不同电压电平(VBi)中的一个, 根据与该特定像素(10)相关联的选择信号(SE)和控制信号(DA),到像素(10)中的特定一个。 选择信号(SE)指示是否选择特定像素(10),并且控制信号(DA)指示所述多个不同电压电平(VBi)中的哪一个必须提供给像素(10)中的特定像素 选择时。
    • 10. 发明申请
    • TOUCH SENSING
    • 触摸感应
    • WO2004023440A2
    • 2004-03-18
    • PCT/IB2003/003850
    • 2003-09-01
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.JOHNSON, Mark, T.HENZEN, Alexander, V.CORNELISSEN, Hugo, J.
    • JOHNSON, Mark, T.HENZEN, Alexander, V.CORNELISSEN, Hugo, J.
    • G09G
    • G06F3/0412
    • A touch sensitive matrix display senses touch input during a sense period (TS) in a separate sense area (A1) which is selected to be non-overlapping with a display area (A2) in which information is displayed dependent on the touch position which is sensed in the sense area (A1). During the sense period (TS), the sense area (A1) is not addressed. The non-address period of time (TR) occurring between two successive sense area addressing periods (TA2) of the sense area (A1) lasts at least as long as, but preferably substantially longer than, the display area address period (TA1,i) required to address the complete display area (A2). The data displayed in the sense area (A1) is refreshed by addressing the sense area (A1) during the sense area address periods (TA2) in-between the sense periods (TS). The data displayed in the sense area (A1) will not be disturbed by the sensing and will be present between two successive sense area addressing periods (TA2, TA2') because the pixels 10 of the matrix display have an optical state which, when not addressed, is maintained longer than the non-address period (TR).
    • 感测矩阵显示器在独立感测区域(A1)期间的感测周期(TS)期间感测触摸输入,该感测周期选择为与根据触摸位置显示信息的显示区域(A2)不重叠,所述显示区域 在感觉区域(A1)感测到。 在感测周期(TS)期间,感测区域(A1)不被解决。 在感测区域(A1)的两个连续的感测区域寻址周期(TA2)之间出现的非寻址时间段(TR)持续至少等于但优选地大大长于显示区域寻址周期(TA1,i )来处理完整的显示区域(A2)。 在感测区域(A1)中显示的数据通过在感测周期(TS)之间的感测区域地址周期(TA2)期间寻址感测区域(A1)而被刷新。 在感测区域(A1)中显示的数据不会受到感测的干扰,并且将存在于两个连续的感测区域寻址周期(TA2,TA2')之间,因为矩阵显示器的像素10具有光学状态,当不是 保持长于非寻址时段(TR)。