公开(公告)号：US20070064302A1

公开(公告)日：2007-03-22

申请号：US10576319

申请日：2004-10-13

申请人： Mark Johnson ,  Lucas Schlangen ,  Patrick Baesjou ,  Guofu Zhou

发明人： Mark Johnson ,  Lucas Schlangen ,  Patrick Baesjou ,  Guofu Zhou

IPC分类号： G02B26/00

CPC分类号： G09G3/3446 ,  G02F1/167 ,  G02F2001/1678 ,  G09G2320/0252

摘要： The present invention provides a novel design for color electrophoretic displays. In the display, each pixel (200) comprises at least two sub-pixels (210, 220, 230), and each sub pixel is fitted with a color filter (211, 221, 231) and contains an electrophoretic media comprising two particle types (201, 202, 203). The color filters (211, 221, 231) in the sub-pixels of each pixel have essentially non-overlapping absorption bands, and together cover essentially all of the wavelengths over which the display is operative. Furthermore, the absorption bands of the particles in each sub-pixel (210, 220, 230) each cover a portion of the wavelengths that is not covered by the filter (211, 221, 231) in the respective sub-pixel. The wavelength bands typically correspond to different colors. Thereby each wavelength band, or color, can be emitted by more than one sub-pixel in each pixel, resulting in increased brightness. According to one particular embodiment, each pixel comprises three sub-pixels having a cyan, magenta, and yellow absorbing filter, respectively.

摘要翻译： 本发明提供了彩色电泳显示器的新颖设计。 在显示器中，每个像素（200）包括至少两个子像素（210,220,230），并且每个子像素装配有滤色器（211,221,231），并且包含包含两个粒子类型的电泳介质 （201,202,203）。 每个像素的子像素中的滤色器（211,221,231）具有基本上不重叠的吸收带，并且一起覆盖显示器可操作的基本上所有的波长。 此外，每个子像素（210,220,230）中的颗粒的吸收带各自覆盖相应子像素中未被滤光器（211,221,231）覆盖的一部分波长。 波长带通常对应于不同的颜色。 因此，每个波长带或颜色可以由每个像素中的多于一个子像素发射，导致增加的亮度。 根据一个具体实施例，每个像素分别包括具有青色，品红色和黄色吸收滤光器的三个子像素。

公开(公告)号：US20070212022A1

公开(公告)日：2007-09-13

申请号：US10599256

申请日：2005-03-29

申请人： Guofu Zhou ,  Jan Van de Kamer ,  Mark Johnson

发明人： Guofu Zhou ,  Jan Van de Kamer ,  Mark Johnson

IPC分类号： H04N5/91

CPC分类号： G09G3/344 ,  G09G3/2014 ,  G09G3/2051 ,  G09G2300/08 ,  G09G2310/06 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G2320/041

摘要： A technique for driving a bi-stable display (310) such as an electrophoretic display with reduced cross talk, including reduced image retention and dithering ghosting. Drive waveforms are aligned so that, during an image update period, image transitions (500, 600, 700, 800, 900) between substantially similar optical states (e.g., black-to-black) are terminated substantially later than image transitions (520, 620, 720, 920) between substantially different optical states (e.g., black-to-white). Additionally, a drive pulse in the waveforms for the transitions between the similar states compensates for cross talk caused by a drive pulse in the waveforms for the transitions between the different states. The waveforms include at least one extreme drive pulse (ED, ED1, ED2, ED3) and an additional pulse (A) of opposite polarity.

摘要翻译： 一种用于驱动具有减少的串扰的电泳显示器的双稳态显示器（310）的技术，包括减少的图像保持和抖动重影。 驱动波形被对准，使得在图像更新周期期间，在基本上相似的光学状态（例如，黑色至黑色）之间的图像转换（500,600,700,800,900）在图像转换（520， 620,720,920）在基本上不同的光学状态之间（例如，黑色至白色）。 此外，用于类似状态之间的转换的波形中的驱动脉冲补偿由不同状态之间的转换的波形中的驱动脉冲引起的串扰。 这些波形包括至少一个极性驱动脉冲（ED，ED 1，ED 2，ED 3）和相反极性的附加脉冲（A）。

公开(公告)号：US20070146561A1

公开(公告)日：2007-06-28

申请号：US10580057

申请日：2004-11-16

申请人： Guofu Zhou ,  Mark Johnson

发明人： Guofu Zhou ,  Mark Johnson

IPC分类号： G02F1/13

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

摘要： A cyclic rail-stabilized method of driving an electrophoretic display device (1), wherein a substantially dc-balanced waveform is used to effect various required optical transitions. The driving waveform consists of a sequence of picture potential differences, which cause the charged particles of the electrophoretic display device (1) to move cyclically between extreme optical positions in a single path, irrespective of the image sequence required to be displayed, except in the case where the desired optical transition is from an intermediate position (or grey scale) to the extreme optical position (or rail state) closest to that intermediate position, in which case the optical transition is effected substantially directly by means of a single voltage pulse (20) which is substantially equal in amplitude and duration, but of opposite polarity, to the voltage pulse (30) required to effect an original optical transition from the rail state to that grey scale.

摘要翻译： 一种用于驱动电泳显示装置（1）的循环轨道稳定方法，其中使用基本上直流平衡的波形来实现各种所需的光学转换。 驱动波形包括一系列图象电位差，使电泳显示装置（1）的带电粒子在单一路径中的极端光学位置之间循环移动，而不管所需的图像序列如何，除了 其中期望的光学转变是从中间位置（或灰度级）到最接近该中间位置的极端光学位置（或轨道状态）的情况，在这种情况下，光学跃迁基本上直接通过单个电压脉冲 20），其幅度和持续时间基本相等，但是与实现从轨道状态到该灰度级的原始光学转换所需的电压脉冲（30）相反。

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：US20070052667A1

公开(公告)日：2007-03-08

申请号：US10573309

申请日：2004-09-24

申请人： Guofu Zhou ,  Neculai Ailenei ,  Mark Johnson ,  Jan van de Kamer

发明人： Guofu Zhou ,  Neculai Ailenei ,  Mark Johnson ,  Jan van de Kamer

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/02 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2380/02

摘要： An accurate greyscale is obtained with more natural image updates when updating a display (310) in a bi-stable electronic reading device (300,400), such as one using an electrophoretic display, by applying a first shaking pulse (S1) to the display, applying a first portion (R1) of a reset pulse to the display following the first shaking pulse (S1), applying a second shaking pulse (S2) to the display following the first portion (R1), and applying a second portion (R2) of the reset pulse to the display following the second shaking pulse (S2). The first portion may have a standard reset duration, while the second portion has an over-reset duration. A visual shock effect is avoided which would otherwise as applied after the entire reset pulse.

摘要翻译： 通过对显示器施加第一摇动脉冲（S1），在使用电泳显示器的双稳态电子阅读装置（300,400）中更新显示器（310）时，获得更自然的图像更新的精确灰度， ，在第一摇动脉冲（S1）之后向显示器施加复位脉冲的第一部分（R 1），对第一部分（R 1）之后的显示器施加第二抖动脉冲（S 2），并施加 复位脉冲的第二部分（R 2）到第二抖动脉冲之后的显示（S 2）。 第一部分可以具有标准复位持续时间，而第二部分具有过度复位持续时间。 避免视觉冲击效应，否则将在整个复位脉冲之后施加。

公开(公告)号：US20060291122A1

公开(公告)日：2006-12-28

申请号：US10571327

申请日：2004-09-09

申请人： Guofu Zhou ,  Roger Cortie ,  Mark Johnson ,  Jan Kamer

发明人： Guofu Zhou ,  Roger Cortie ,  Mark Johnson ,  Jan Kamer

IPC分类号： H02H5/04

CPC分类号： G09G3/344 ,  G09G3/2011 ,  G09G3/2014 ,  G09G3/2081 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/041

摘要： An image is updated on a bi-stable display (310) such as an electrophoretic display by providing separate scaling functions (SF1, SF2) for scaling a duration of a reset pulse (R) and a duration of a driving pulse (D) in a drive waveform based on temperature (335). An absolute value of a slope with varying temperatures of the scaling factor (SF 1) for the reset pulse (R) is significantly greater than that of the scaling factor (SF2) for the driving pulse (D), while both scaling factors increase with decreasing temperature. Image update time (IUT) is significantly reduced at lower temperatures, while a range of variation of IUT across all temperatures is also reduced. Scaling functions (SF3, SF4) may also be used for scaling a duration of a help reset pulse (H) and/or a duration of one or more shaking pulses (SH1, SH2).

摘要翻译： 通过提供用于缩放复位脉冲（R）的持续时间和驱动脉冲（D）的持续时间的分开的缩放函数（SF 1，SF 2），在诸如电泳显示器的双稳态显示器（310）上更新图像 ）在基于温度的驱动波形（335）中。 对于复位脉冲（R），具有变化温度的比例因子（SF 1）的斜率的绝对值明显大于驱动脉冲（D）的缩放因子（SF 2）的绝对值，而两个缩放因子增加 随着温度的降低。 图像更新时间（IUT）在较低温度下显着降低，而IUT在所有温度下的变化范围也会降低。 缩放功能（SF 3，SF 4）也可用于缩放帮助复位脉冲（H）的持续时间和/或一个或多个抖动脉冲（SH 1，SH 2）的持续时间。

公开(公告)号：US20060274030A1

公开(公告)日：2006-12-07

申请号：US10568645

申请日：2004-08-05

申请人： Mark Johnson ,  Guofu Zhou

发明人： Mark Johnson ,  Guofu Zhou

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G3/2018 ,  G09G2300/0876 ,  G09G2310/0262 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/0252 ,  G09G2320/0257

摘要： An electrophoretic display panel and a method for driving an electrophoretic display panel in which to bring an element from a preceding optical state to a grey scale in accordance with the image information Preset pulses and driving (grey scale pulses) are integrated into an integrated series of asymmetric (in respect of V=0) pulses. A more gradual introduction of grey scale is thereby achievable, reducing the suddenness of the transition from one image to another.

摘要翻译： 一种电泳显示面板和一种用于驱动电泳显示面板的方法，其中根据图像信息将元件从前一光学状态带到灰度级预设脉冲和驱动（灰度脉冲）被集成到一系列 不对称（关于V = 0）脉冲。 因此，可以更加渐进地引入灰度，从而减少从一个图像到另一个图像的过渡的突然性。

公开(公告)号：US20060244714A1

公开(公告)日：2006-11-02

申请号：US10558736

申请日：2004-05-19

申请人： Guofu Zhou ,  Peter Duine ,  Mark Johnson ,  Neculai Ailenei

发明人： Guofu Zhou ,  Peter Duine ,  Mark Johnson ,  Neculai Ailenei

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2300/08 ,  G09G2310/0205 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2310/068

摘要： A driving circuit for an electrophoretic display has a plurality of pixels (18) of an electrophoretic material which comprises charged particles (8, 9). The pixels (18) are associated with a respective first electrode (6) and second electrode (5, 5′) which present a drive voltage (VD) to the pixels (18) to at least enable the charged particles (8, 9) to occupy one of two limit positions between the first electrode (6) and the second electrode (5, 5′). The driving circuit comprises an addressing circuit (16, 10) which generates the drive voltage (VD) by applying between the first electrode (6) and the second electrode (5, 5′): (i) an reset pulse (RE) which has an energy content sufficient or larger than required for the charged particles (8, 9) to reach one of the limit positions, and (ii) a shaking pulse (SP1) which at least partially overlaps the reset pulse (RE). The shaking pulse SP1 has, during the reset pulse (RE), at least partially a level with an opposite polarity than a level of the reset pulse (RE). The shaking pulse (SPI) comprises at least one preset pulse (PR) having an energy sufficient to release the charged particles (8, 9) present in one of the limit positions, but insufficient to enable said particles (8, 9) to reach the other one of the limit positions.

摘要翻译： 电泳显示器的驱动电路具有包含带电粒子（8,9）的电泳材料的多个像素（18）。 像素（18）与相应的第一电极（6）和向像素（18）提供驱动电压（VD）的至少使得带电粒子（8,9）的第二电极（5,5'）相关联， 以占据第一电极（6）和第二电极（5,5'）之间的两个极限位置之一。 驱动电路包括通过施加在第一电极（6）和第二电极（5,5'）之间产生驱动电压（VD）的寻址电路（16,10）：（i）复位脉冲（RE） 具有足够或大于带电粒子（8,9）达到极限位置之一所需的能量含量，和（ii）与复位脉冲（RE）至少部分重叠的摇动脉冲（SP 1）。 在复位脉冲（RE）期间，抖动脉冲SP 1至少部分地具有与复位脉冲（RE）的电平相反极性的电平。 抖动脉冲（SPI）包括至少一个预设脉冲（PR），其具有足以释放存在于一个极限位置中的带电粒子（8,9）的能量，但不足以使所述粒子（8,9）达到 另一个极限位置。

公开(公告)号：US20060232548A1

公开(公告)日：2006-10-19

申请号：US10568646

申请日：2004-08-10

申请人： Mark Johnson ,  Guofu Zhou

发明人： Mark Johnson ,  Guofu Zhou

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G3/2014 ,  G09G3/2018 ,  G09G2300/08 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/068

摘要： The electrophoretic display panel (1) for displaying a picture has a plurality of picture elements (2) and drive means (100). Each picture element (2) has two electrodes (3,4) for receiving a potential difference and charged particles (6) being able to occupy positions between the electrodes (3,4). The drive means (100) are able to supply a sequence of potential difference pulses to each picture element (2). Each sequence has a response-changing pulse for changing the ability of the particles (6) to respond to the potential difference without substantially changing the position of the particles (6), and a picture pulse for bringing the particles (6) into one of the positions for displaying the picture. For the display panel (1) to be able to display a picture of relatively high picture quality, even when the frame period is relatively large and the number of potential difference values for the picture pulse is relatively low, with respect to at least a number of the picture elements (2), the drive means (100) are further able to supply for each picture element (2) out of said number a part of the picture pulse before an end of the response-changing pulse.

摘要翻译： 用于显示图像的电泳显示面板（1）具有多个图像元素（2）和驱动装置（100）。 每个像素（2）具有用于接收电位差的两个电极（3,4）和能够占据电极（3,4）之间位置的带电粒子（6）。 驱动装置（100）能够向每个图像元素（2）提供一系列电位差脉冲。 每个序列具有响应变化脉冲，用于改变粒子（6）响应于电位差的能力，而基本上不改变粒子（6）的位置;以及用于使粒子（6）进入到 显示图片的位置。 为了使显示面板（1）能够显示相对高的图像质量的图像，即使帧周期相对较大并且图像脉冲的电位差值的数量相对较低，相对于至少一个数字 在图像元素（2）之间，驱动装置（100）还能够在响应改变脉冲结束之前，为所述数量的图像脉冲的一部分提供每个图像元素（2）。

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。