公开(公告)号：US20070035510A1

公开(公告)日：2007-02-15

申请号：US10573551

申请日：2004-09-20

申请人： Guofu Zhou ,  Leendert Hage ,  Rogier Hendrikus Cortie

发明人： Guofu Zhou ,  Leendert Hage ,  Rogier Hendrikus Cortie

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2310/0254 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/0204 ,  G09G2320/0247

摘要： The present invention relates to a novel driving scheme for an electrophoretic display providing accurate intermediate optical states. According to the invention, the level of remnant voltage across pixels are taken into account when driving the display. Remnant voltage is built up when resetting the pixel between consecutive image states, and the reset states are therefore chosen so as to avoid the generation of excessive remnant voltage levels. The invention can for example be implemented using a counter, counting the number of consecutive uses of the same state as extreme state, or using a look-up-table in which driving history of the display is mapped and which determines the reset state to be used for the next reset based on the driving history. In effect, the threshold number of consecutive uses of the same state as a reset state is avoided.

摘要翻译： 本发明涉及一种提供精确的中间光学状态的电泳显示器的新型驱动方案。 根据本发明，驱动显示器时考虑到跨像素的残余电压的水平。 在连续图像状态之间复位像素时建立剩余电压，因此选择复位状态，以避免产生过多的残余电压电平。 本发明可以例如使用计数器来实现，对与极端状态相同的状态的连续使用的数量进行计数，或者使用其中映射了显示器的驾驶历史的查找表，并且确定复位状态为 用于基于驾驶历史的下一次重置。 实际上，避免了与复位状态相同状态的连续使用的阈值数量。

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。

公开(公告)号：US20060146008A1

公开(公告)日：2006-07-06

申请号：US10562169

申请日：2004-06-23

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

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

IPC分类号： G09G3/34

CPC分类号： G09G3/006 ,  G09G3/2011 ,  G09G3/344 ,  G09G2310/061 ,  G09G2320/0285 ,  G09G2320/0693

摘要： The invention relates to a method for calibrating an electrophoretic display panel (1) comprising a plurality of pixels (2) capable of representing at least two optical states by receiving driving signals (30), comprising the steps of displaying a first calibration image (22) containing said optical states in a first arrangement on said electrophoretic display panel and providing driving signals (30) to said pixels (2) corresponding to a required image (23) resulting in a second calibration image (24) containing said optical states in a second arrangement on said electrophoretic display panel (1). The second calibration image (24) is compared with said required image (23) to determine differences (26) between said second calibration image (24) and said required image (23) and said driving signals (30) are adjusted in accordance with said differences such that said second calibration image (23) and said required image (24) match. By this method the uniformity of the electrophoretic display (1) is improved.

摘要翻译： 本发明涉及一种用于校准电泳显示面板（1）的方法，该电泳显示面板（1）包括通过接收驱动信号（30）能够表示至少两个光学状态的多个像素（2），包括以下步骤：显示第一校准图像 ），其包含所述电泳显示面板上的第一布置中的所述光学状态，并向与所需图像（23）相对应的所述像素（2）提供驱动信号（30），从而产生包含所述光学状态的第二校准图像（24） 第二布置在所述电泳显示面板（1）上。 将第二校准图像（24）与所需要的图像（23）进行比较，以确定所述第二校准图像（24）与所需要的图像（23）之间的差异（26），并且根据所述图像调整所述驱动信号（30） 使得所述第二校准图像（23）和所述所需图像（24）匹配的差异。 通过该方法，提高了电泳显示器（1）的均匀性。

公开(公告)号：US20060139305A1

公开(公告)日：2006-06-29

申请号：US10543201

申请日：2004-01-13

申请人： Guofu Zhou ,  Neculai Ailenei ,  Mark Johnson

发明人： Guofu Zhou ,  Neculai Ailenei ,  Mark Johnson

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G02F1/167 ,  G09G3/20 ,  G09G3/2014 ,  G09G5/14 ,  G09G2300/0473 ,  G09G2300/08 ,  G09G2310/0205 ,  G09G2310/0275 ,  G09G2310/04 ,  G09G2310/06 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/04 ,  G09G2330/021

摘要： In a first display mode, only the information in a first sub-area (W1) of the display screen of a bi-stable matrix display (100) has to be updated. In a second display mode, the information in a second sub-area (W2) of the display screen has to be updated. The information in the first sub-area (W1) is displayed using optical states which require first drive voltage waveforms (DV1) having a maximum duration equal to a first image update period (IUPI). The information in the second area (W2) is displayed using optical states which require second drive voltage waveforms (DV2) having a maximum duration equal to a second image update period (IUP2). The optical states allowed to be used during the first mode are selected to obtain a first image update period (IUP1) which is shorter than the second image update period (IUP2). In this manner, the refresh rate off the information in the first area (WI) is higher than the refresh rate in the second area (W2).

摘要翻译： 在第一显示模式中，必须更新双稳矩阵显示（100）的显示画面的第一子区域（W1）中的信息。 在第二显示模式中，必须更新显示屏幕的第二子区域（W 2）中的信息。 使用需要具有等于第一图像更新周期（IUPI）的最大持续时间的第一驱动电压波形（DV 1）的光学状态来显示第一子区域（W1）中的信息。 使用需要具有等于第二图像更新周期（IUP 2）的最大持续时间的第二驱动电压波形（DV2）的光学状态来显示第二区域（W 2）中的信息。 选择允许在第一模式期间使用的光学状态以获得比第二图像更新周期（IUP 2）更短的第一图像更新周期（IUP 1）。 以这种方式，关闭第一区域（WI）中的信息的刷新率高于第二区域中的刷新率（W 2）。

公开(公告)号：US08149208B2

公开(公告)日：2012-04-03

申请号：US12883282

申请日：2010-09-16

申请人： Guofu Zhou ,  Willibrordus Jurrianus Kijkman ,  Mark Thomas Johnson

发明人： Guofu Zhou ,  Willibrordus Jurrianus Kijkman ,  Mark Thomas 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 图像外观是极端或中间的，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：US20110018861A1

公开(公告)日：2011-01-27

申请号：US12883282

申请日：2010-09-16

申请人： Guofu Zhou ,  Willibrordus Jurrianus Dijkman ,  Mark Thomas Johnson

发明人： Guofu Zhou ,  Willibrordus Jurrianus Dijkman ,  Mark Thomas Johnson

IPC分类号： G06F3/038

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 图像外观是极端或中间的，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。