公开(公告)号：US20070146306A1

公开(公告)日：2007-06-28

申请号：US10598204

申请日：2005-02-24

申请人： Mark Johnson ,  Guofu Zhou ,  Johannes Van De Kamer

发明人： Mark Johnson ,  Guofu Zhou ,  Johannes Van De Kamer

IPC分类号： G09G3/34

CPC分类号： G09G5/028 ,  G09G3/344 ,  G09G2310/0245 ,  G09G2320/0204 ,  G09G2340/0428

摘要： The present inventions relates to electrophoretic displays that are switchable between a grayscale updating mode (502) and a monochrome updating mode (501). The monochrome updating mode (501) provides for extreme pixel states only (e.g. black and white), whereas the grayscale updating mode (501) provides for intermediate grayscale pixels states as well. According to the present invention, a suitably selected transition signal (504) is applied when switching from the grayscale updating mode (502) to the monochrome updating mode (501). The transition signal (504) involves a drive pulse that serves to reduce the level of remnant DC voltage otherwise occurring in each pixel due to differences in the grayscale updating mode (502) and the monochrome updating mode (501).

摘要翻译： 本发明涉及可在灰阶更新模式（502）和单色更新模式（501）之间切换的电泳显示器。 单色更新模式（501）仅提供极端像素状态（例如黑色和白色），而灰阶更新模式（501）也提供中间灰度像素状态。 根据本发明，当从灰度级更新模式（502）切换到单色更新模式（501）时，应用适当选择的转换信号（504）。 转换信号（504）涉及驱动脉冲，其用于降低由于灰度级更新模式（502）和单色更新模式（501）中的差异而在每个像素中出现的剩余DC电压的电平。

公开(公告)号：US20060170667A1

公开(公告)日：2006-08-03

申请号：US10564538

申请日：2004-07-12

申请人： Guofu Zhou ,  Mark Johnson ,  Johannes Van De Kamer

发明人： Guofu Zhou ,  Mark Johnson ,  Johannes Van De Kamer

IPC分类号： G09G5/00

CPC分类号： G09G3/344 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/0204 ,  G09G2320/0247 ,  G09G2330/021

摘要： This invention relates to an electrophoretic display panel, comprising:—a plurality of pixels, each containing an amount of an electrophoretic material comprising charged particles,—a first and a second electrode associated with each pixel for receiving a potential difference as defined by an update drive waveform; and—drive means, for controlling said update drive waveform of each pixel; wherein the charged particles, depending on the applied update drive waveform, are able to occupy a position being one of extreme positions near the electrodes and intermediate positions in between the electrodes for displaying the picture, and wherein said update drive waveform essentially comprises a first shaking portion, a reset portion, a second shaking portion and subsequently a driving portion, wherein the polarity of said first shaking portion is opposite the polarity of the second shaking portion.

摘要翻译： 本发明涉及一种电泳显示面板，包括： - 多个像素，每个像素包含一定量的包含带电粒子的电泳材料， - 与每个像素相关联的第一和第二电极，用于接收由更新所定义的电位差 驱动波形; 驱动装置，用于控制每个像素的所述更新驱动波形; 其中根据施加的更新驱动波形的带电粒子能够占据位于电极附近的极端位置之一和用于显示图像的电极之间的中间位置之间的位置，并且其中所述更新驱动波形基本上包括第一摇动 部分，复位部分，第二抖动部分和随后的驱动部分，其中所述第一摇动部分的极性与第二抖动部分的极性相反。

公开(公告)号：US20070080927A1

公开(公告)日：2007-04-12

申请号：US10579308

申请日：2004-11-16

申请人： Guofu Zhou ,  Johannes Van De Kamer ,  Mark Johnson

发明人： Guofu Zhou ,  Johannes Van De Kamer ,  Mark Johnson

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2320/0209

摘要： An electrophoretic display device comprising charged particles in a fluid between two electrodes. Drive means supply the electrodes with drive waveforms in order to cause the charged particles to occupy a desired optical state according to an image to be displayed. In the case where a pixel is required to remain in the same optical state during an image update sequence, at least one voltage pulse is provided at or near the end of the drive signal to compensate for the effect of crosstalk by drawing the charged particles back to the optical state in which the respective picture element is required to remain during that image update sequence.

摘要翻译： 一种电泳显示装置，其包括在两个电极之间的流体中的带电粒子。 驱动装置为电极提供驱动波形，以根据要显示的图像使带电粒子占据期望的光学状态。 在像素需要在图像更新序列期间保持相同的光学状态的情况下，在驱动信号的末端或其附近提供至少一个电压脉冲，以通过将带电粒子拉回来来补偿串扰的影响 到在该图像更新序列期间需要保留各个像素的光学状态。

公开(公告)号：US20060232547A1

公开(公告)日：2006-10-19

申请号：US10564381

申请日：2004-07-07

申请人： Mark Johnson ,  Guofu Zhou ,  Johannes Van De Kamer

发明人： Mark Johnson ,  Guofu Zhou ,  Johannes Van De Kamer

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2310/04 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2320/0204 ,  G09G2320/0257 ,  G09G2320/0285 ,  G09G2320/103 ,  G09G2330/021

摘要： This invention relates to an electrophoretic display panel (1), for displaying an image corresponding to image information, comprising a plurality of pixels (4), each containing an amount of an electrophoretic material, an electrode arrangement (8, 9) associated with each pixel (4) for receiving a potential difference as defined by an update drive waveform (12); and pixel drive means (10), for controlling said update drive waveform (12) of each pixel (4). The display panel further comprises an image information analyser (11) arranged to analyse the image information for a current image frame (13) to be displayed by the display panel with the image information of a previous image frame (14), the image information analyser (11) being arranged to control said pixel drive means (10) so as to, at least in a portion of the display, only update a subgroup of pixels (4) which, as analysed by the image information analyser (11) is arranged to display a greyscale in the current image frame (13) which differs from the greyscale displayed in the previous image frame (14).

摘要翻译： 本发明涉及一种用于显示对应于图像信息的图像的电泳显示面板（1），其包括多个像素（4），每个像素包含一定量的电泳材料，与每个像素相关联的电极布置（8,9） 像素（4），用于接收由更新驱动波形（12）定义的电位差; 以及用于控制每个像素（4）的所述更新驱动波形（12）的像素驱动装置（10）。 显示面板还包括图像信息分析器（11），其被配置为分析由显示面板显示的当前图像帧（13）的图像信息，其具有先前图像帧（14）的图像信息，图像信息分析器 （11）被布置成控制所述像素驱动装置（10），使得至少在所述显示器的一部分中仅更新像素（4）的子组，所述像素组由所述图像信息分析器（11）被布置 以在当前图像帧（13）中显示与先前图像帧（14）中显示的灰度不同的灰度。

公开(公告)号：US20060170647A1

公开(公告)日：2006-08-03

申请号：US10564531

申请日：2004-07-07

申请人： Guofu Zhou ,  Johannes Van De Kamer ,  Neculai Ailenei ,  Mark Johnson

发明人： Guofu Zhou ,  Johannes Van De Kamer ,  Neculai Ailenei ,  Mark Johnson

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2300/08 ,  G09G2310/04 ,  G09G2310/061 ,  G09G2330/021

摘要： Electophoretic display units (1) are driven with a relatively low amount of power and more efficiently by addressing the pixels (11) only once during a sequence of frame periods. Compared to addressing a pixel (11) each frame period, for signals having a duration of more than one frame period, a large amount of power is saved. During a sequence of frame periods formed by a time-interval (T1-T8), one or more reset pulses (R) or one or more driving pulses (Dr) are provided. The addressing of a line of pixels (11) can be skipped during a sequence of frame periods if all pixels (11) of the line of pixels (11) have to remain unchanged. Signals having a duration of two or more frame periods do not need to be supplied to the pixels (11) each frame period, but need to be supplied only once by addressing the pixels (11) only once during a sequence of frame periods.

摘要翻译： 通过在帧周期的序列期间仅对像素（11）进行寻址一次，以较低的功率量来驱动电泳显示单元（1）。 与每帧周期的像素（11）寻址相比，对于具有多于一个帧周期的持续时间的信号，节省了大量的功率。 在由时间间隔（T 1 -T 8 N）形成的帧周期序列期间，一个或多个复位脉冲（R）或一个或多个驱动脉冲（Dr ）。 如果像素行（11）的所有像素（11）必须保持不变，则可以在帧周期的序列期间跳过像素线（11）的寻址。 具有两个或更多个帧周期的持续时间的信号不需要在每个帧周期中被提供给像素（11），而是需要在帧周期序列期间仅对像素（11）寻址一次来提供一次。

公开(公告)号：US20070103427A1

公开(公告)日：2007-05-10

申请号：US10580059

申请日：2004-11-23

申请人： Guofu Zhou ,  Ara Knaian ,  Karl Amundson ,  Alexander Henzen ,  Johannes Van De Kamer ,  Robert Zehner ,  Benjamin Zion ,  Neculai Ailenei

发明人： Guofu Zhou ,  Ara Knaian ,  Karl Amundson ,  Alexander Henzen ,  Johannes Van De Kamer ,  Robert Zehner ,  Benjamin Zion ,  Neculai Ailenei

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G3/2011 ,  G09G3/2014 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/0204

摘要： A cyclic rail-stabilized method of driving an electrophoretic display device (1), wherein a substantially dc-balanced driving waveform is used to effect the various required optical transitions. The driving waveform consists of a plurality of picture potential differences (20), which cause the charged particles (6) of the electrophoretic device (1) to cyclically between extreme optical positions in a single optical path, irrespective of the image sequence required to be displayed, i.e. in order to display each grey scale, it is necessary for the particles (6) to first pass through one of the extreme optical states. In order to minimise the effects of dwell time on the image quality and minimise, or even eliminate, the need to consider image history, shaking pulses (10) are generated immediately prior to each picture potential difference (20).

摘要翻译： 一种驱动电泳显示装置（1）的循环轨道稳定方法，其中使用基本上直流平衡的驱动波形来实现各种所需的光学转换。 驱动波形由多个图象电位差（20）组成，这使得电泳装置（1）的带电粒子（6）在单个光路中在极端光学位置之间循环地进行，而不管所需的图像序列如何 显示，即为了显示每个灰度级，粒子（6）必须首先通过极端光学状态之一。 为了最小化驻留时间对图像质量的影响并且最小化或甚至消除考虑图像历史的需要，在每个图像电位差（20）之前立即产生抖动脉冲（10）。