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：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。

公开(公告)号：US20070126693A1

公开(公告)日：2007-06-07

申请号：US10579307

申请日：2004-11-17

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 ,  G09G2300/08 ,  G09G2310/063 ,  G09G2320/0209 ,  G09G2320/0252

摘要： The invention relates to an electrophoretic display device (1) comprising charged particles (8, 9) in a fluid (10) between a pair of electrodes (5, 6). A drive means is arranged and configured to supply a drive waveform to the electrodes (5, 6), the drive waveform comprising a sequence of drive signals for effecting respective optical transitions by causing the charged particles (8, 9) to occupy a predetermined position between the electrodes (5, 6) according to image data required to be displayed, and at least one voltage pulse, preferably prior to each drive signal, for inducing a substantially uniform electric field distribution across the display device (1). This has the effect of significantly reducing edge image retention and/or ghosting.

摘要翻译： 本发明涉及一种电泳显示装置（1），其包括位于一对电极（5,6）之间的流体（10）中的带电粒子（8,9）。 驱动装置被布置和配置为向电极（5,6）提供驱动波形，驱动波形包括一系列驱动信号，用于通过使带电粒子（8,9）占据预定位置来实现相应的光学转换 根据需要显示的图像数据的电极（5,6）和优选地在每个驱动信号之前的至少一个电压脉冲，用于在整个显示装置（1）上诱导基本上均匀的电场分布。 这具有显着减少边缘图像保持和/或重影的效果。

公开(公告)号：US20070057906A1

公开(公告)日：2007-03-15

申请号：US10572466

申请日：2004-09-17

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 ,  G09G2300/08 ,  G09G2310/0262 ,  G09G2310/06 ,  G09G2310/068 ,  G09G2320/041 ,  G09G2340/16 ,  G09G2360/12

摘要： A display device (401) has groups of display elements (118), which are changed from one optical state to another by applying a waveform (330, 331) sequence of potential differences. The waveforms (330, 331) to be applied are stored in a look-up table (445) in a memory of the device (401). The look-up table is ordered so that portions of the waveforms (330, 331) are reused for different groups of display elements (401). The memory requirement for storing the waveforms (330, 331) is reduced.

摘要翻译： 显示装置（401）具有通过施加电位差的波形（330,331）的顺序而从一个光学状态改变为另一个的显示元件组（118）。 要应用的波形（330,331）被存储在设备（401）的存储器中的查找表（445）中。 查找表被排序，使得部分波形（330,331）被重新用于不同的显示元件组（401）。 存储波形（330,331）的存储器要求降低。

公开(公告)号：US20070052669A1

公开(公告)日：2007-03-08

申请号：US10574451

申请日：2004-10-05

申请人： Guofu Zhou ,  Masaru Yasui ,  Mark Johnson

发明人： Guofu Zhou ,  Masaru Yasui ,  Mark Johnson

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2300/08 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2330/021

摘要： An electrophoretic display panel (1), comprises drive means (100) for controlling the potential difference of each picture element (2) to be a reset potential difference for enabling particles (6) to substantially occupy one of the extreme positions, and subsequently to be a grey scale potential difference for enabling the particles (6) to occupy the position corresponding to the image information. The drive means are arranged for applying, at least for reset potential differences representing 50% or more of the maximum reset pulse energy, one or more pulses (Rp, SDp) having a voltage value of substantially less than the reset value in between a reset potential difference and a grey scale potential difference,

摘要翻译： 一种电泳显示面板（1），包括驱动装置（100），用于将每个图像元素（2）的电位差控制为复位电位差，以使颗粒（6）基本上占据极限位置之一，随后 是使粒子（6）能够占据与图像信息对应的位置的灰度级电位差。 驱动装置被布置成至少应用表示最大复位脉冲能量的50％或更多的复位电位差，一个或多个脉冲（Rp，SDp）具有基本上小于复位之间的复位值的电压值 电位差和灰度级电位差，

公开(公告)号：US20070052668A1

公开(公告)日：2007-03-08

申请号：US10574450

申请日：2004-10-05

申请人： Guofu Zhou ,  Mark Johnson

发明人： Guofu Zhou ,  Mark Johnson

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2310/061 ,  G09G2310/068

摘要： The electrophoretic display panel (1) for subsequently displaying pictures has a plurality of picture elements (2) and drive means (100). The drive means (100) are able to supply to each picture element (2) a picture pulse. Each picture pulse is a sequence of potential difference pulses and has a response-increasing pulse for increasing the ability of the particles (6) to respond to the potential difference without substantially changing the position of the particles (6), and a drive pulse for bringing the particles (6) into one of the positions for displaying the respective picture. For the display panel (1) to be able to have reduced image retention, less disturbing visual effects than in a method using reset pulses, and a shorter picture update time than in a method using short pulses, with respect to at least a number of the picture elements (2), for each picture element (2) out of said number the display panel (100) further comprises averaging means (200) for providing information with respect to an accumulation of charge in the picture element (2), which accumulation of charge is a result from picture pulses preceding the response-increasing pulse, and the drive means (100) being further arranged to select, based on the information, a time average of the response-increasing pulse to reduce an undesired charge accumulation in the picture element (2).

摘要翻译： 用于随后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）。 驱动装置（100）能够向每个图像元素（2）提供图像脉冲。 每个图像脉冲是一个电势差脉冲序列，并且具有响应增加脉冲，用于增加颗粒（6）响应于电位差的能力，而基本上不改变颗粒（6）的位置;以及用于 使颗粒（6）进入用于显示相应图像的位置之一。 对于显示面板（1），与使用复位脉冲的方法相比，能够减少图像保持性，较少的视觉效果以及比使用短脉冲的方法更短的图像更新时间，相对于至少多个 对于每个图像元素（2），对于显示面板（100）的所述数目，图像元素（2）还包括用于提供关于图像元素（2）中的电荷累积的信息的平均装置（200），其中 电荷的积累是由响应增加脉冲之前的图像脉冲引起的，并且驱动装置（100）还被布置为基于该信息来选择响应增加脉冲的时间平均以减少不期望的电荷累积 图像元素（2）。

公开(公告)号：US20070052648A1

公开(公告)日：2007-03-08

申请号：US10571830

申请日：2004-09-01

申请人： Guofu Zhou ,  Mark Johnson ,  Rogier Hendrikus Cortie

发明人： Guofu Zhou ,  Mark Johnson ,  Rogier Hendrikus Cortie

IPC分类号： G09G3/36

CPC分类号： G09G3/344 ,  G09G2300/08 ,  G09G2310/061 ,  G09G2310/065 ,  G09G2310/068 ,  G09G2320/041

摘要： A drive circuit for a bi-stable display comprises: a driver (101, 102) which supplies drive waveforms (DWk) to the pixels (Pij) of the display during an image update period (IUk) wherein the image presented by the pixels (Pij) is updated. A temperature sensing circuit senses the temperature of the display. A controller (103) controls the driver (101, 102) to supply, during the image update period (IUk) wherein a particular optical transition of a particular one of the pixels (Pij) is required, an associated one of the drive waveforms (DWk) to the particular one of the pixels (Pij). The associated one of the drive waveforms (DWk) comprises a sequence of a particular number of pulses (SPk), wherein consecutive ones of the pulses (SPk) of the sequence are separated by a non-zero separation period of time (SPT), during which period a voltage level is supplied which substantially keeps an optical state of the particular one of the pixels (Pij) unaltered. The particular number of said pulses (SPk), and/or a duration of said pulses (SPk), and/or a duration of the separation period (SPT) of the associated one of the drive waveforms (DWk) is determined to obtain the particular optical transition at the temperature sensed.

摘要翻译： 用于双稳态显示器的驱动电路包括：驱动器（101,102），其在图像更新周期（IUk）期间向显示器的像素（Pij）提供驱动波形（DWK），其中由像素呈现的图像 Pij）更新。 温度检测电路检测显示器的温度。 控制器（103）控制驱动器（101,102）在其中需要特定的像素（Pij）的特定光学转换的图像更新周期（IUk）期间提供相关联的一个驱动波形 DWk）到特定的一个像素（Pij）。 驱动波形（DWk）中的相关联的一个包括特定数量的脉冲序列（SPk），其中序列的脉冲（SPk）中的连续的一个被非零分离时间段（SPT）隔开， 在此期间提供基本上保持特定像素（Pij）的光学状态不变的电压电平。 确定所述脉冲的特定数量（SPk）和/或所述脉冲的持续时间（SPk）和/或相关联的驱动波形（DWk）的分离周期（SPT）的持续时间以获得 在感测温度下的特定光学转变。

公开(公告)号：US20060092124A1

公开(公告)日：2006-05-04

申请号：US10530379

申请日：2003-09-12

申请人： Guofu Zhou ,  Willibrordus Dijkman ,  Mark Johnson

发明人： Guofu Zhou ,  Willibrordus Dijkman ,  Mark Johnson

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G3/2011 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/02

摘要： The electrophoretic display panel (1) for displaying a picture and a subsequent picture has drive means (100) which are able to control for each pixel (2) the potential difference to have a picture value to provide the pixels (2) with a respective picture appearance being either extreme or intermediate, subsequently to have an inter-picture value to provide the pixels (2) with a respective inter-picture appearance, and subsequently to have a subsequent picture value. For the display panel (1) to be able to provide the pixels (2) with the inter-picture appearances which are in general relatively little visible, the drive means (100) are able to control for each pixel (2) an estimate potential difference as the inter-picture value to provide the pixels (2) with a respective estimate picture appearance as the inter-picture appearance.

摘要翻译： 用于显示图像和后续图像的电泳显示面板（1）具有能够对每个像素（2）控制电位差以具有图像值的驱动装置（100），以向像素（2）提供各自的像素 图像外观为极端或中间，随后具有画面间值，以向像素（2）提供相应的画面外观，并且随后具有后续画面值。 为了使显示面板（1）能够向像素（2）提供通常相对较少可见的图像间外观，驱动装置（100）能够为每个像素（2）控制估计电位 差异作为画面间值，以使像素（2）具有相应的估计画面外观作为画面间的外观。

公开(公告)号：US20060077190A1

公开(公告)日：2006-04-13

申请号：US10542909

申请日：2004-01-13

申请人： Guofu Zhou ,  Mark Johnson

发明人： Guofu Zhou ,  Mark Johnson

IPC分类号： G09G5/00

CPC分类号： G09G3/344 ,  G02F1/167 ,  G09G3/2014 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/04

摘要： In a method of driving an electrophoretic display, during an image update period (IUi) wherein the pixels (18) of the display are addressed to refresh an image displayed, a chive waveform (DWi) is supplied (10,16) to an associated one of the pixels (18). The drive waveform (DWi) comprises successively a first pulse (Ri, Si) with a first voltage level (+VM, −VM) and a drive pulse (Di) with second voltage level (VDi). The drive pulse (Di) has a variable voltage level to allow obtaining a desired intermediate optical state of the pixel (18) with a high accuracy. An absolute value of the second voltage level (VDi) of the drive pulse (Di) is smaller than an absolute value of the first voltage level (+VM, −VM) of the first pulse (Ri, Si), to minimize the total image update time.

摘要翻译： 在驱动电泳显示器的方法中，在其中寻址显示器的像素（18）以刷新所显示的图像的图像更新周期（IUi）期间，向相关联的供应（10,16）提供ive波形（10i） 像素（18）中的一个。 驱动波形（DWi）依次包括具有第一电压电平（+ VM，-VM）的第一脉冲（Ri，Si）和具有第二电压电平（VDi）的驱动脉冲（Di））。 驱动脉冲（Di）具有可变电压电平以允许以高精度获得像素（18）的期望的中间光学状态。 驱动脉冲（Di）的第二电压电平（VDi）的绝对值小于第一脉冲（Ri，Si）的第一电压电平（+ VM，-VM）的绝对值，以使总计 图像更新时间。