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41. 发明申请

US20070052668A1 Electrophoretic display panel 审中-公开
标题翻译：电泳显示面板
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）。

42. 发明申请

US20070052648A1 Temperature compensation method for bi-stable display using drive sub-pulses 审中-公开
标题翻译：使用驱动子脉冲进行双稳态显示的温度补偿方法
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。

43. 发明申请

US20060092124A1 Electrophoretic display panel 有权
标题翻译：电泳显示面板
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。

44. 发明申请

US20060077190A1 Driving an electrophoretic display 审中-公开
标题翻译：驾驶电泳显示
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。

45. 发明申请

US20060066558A1 Electrophoretic display device and driving method therefor 有权
标题翻译：电泳显示装置及其驱动方法
公开(公告)号：US20060066558A1
公开(公告)日：2006-03-30
申请号：US10515461
申请日：2003-05-12
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 , G02F1/167 , G09G3/20 , G09G3/2014 , G09G2300/08 , G09G2310/0205 , G09G2310/0224 , G09G2310/0251 , G09G2310/0275 , G09G2310/04 , G09G2310/06 , G09G2310/061 , G09G2310/068 , G09G2320/04 , G09G2330/021
摘要： An electrophoretic display has at least one pixel (18) which comprises electrophoretic material (8, 9), a first electrode (6) and a second electrode (5). An addressing circuit (16, 10) addresses the at least one pixel (18) by applying between the first electrode (6) and the second electrode (5): (i) a drive pulse (Vdr) with a level in accordance with an optical state to be reached by the at least one pixel (18), and (ii) a series of shaking pulses (SP) which have an energy content depending on an optical state of the at least one pixel (18).
摘要翻译：电泳显示器具有包括电泳材料（8,9），第一电极（6）和第二电极（5）的至少一个像素（18）。寻址电路（16,10）通过施加在第一电极（6）和第二电极（5）之间来对至少一个像素（18）进行寻址：（i）驱动脉冲（Vdr），其具有与由所述至少一个像素（18）到达的光学状态，以及（ii）具有取决于所述至少一个像素（18）的光学状态的能量含量的一系列抖动脉冲（SP）。

46. 发明申请

US20060050050A1 Driving a bi-stable matrix display device 审中-公开
标题翻译：驱动双稳态矩阵显示装置
公开(公告)号：US20060050050A1
公开(公告)日：2006-03-09
申请号：US10543202
申请日：2004-01-13
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 , G02F1/167 , G09G3/2014 , G09G2300/08 , G09G2310/0205 , G09G2310/0275 , G09G2310/04 , G09G2310/06 , G09G2310/061 , G09G2320/04 , G09G2330/021
摘要： A bi-stable display (100) is driven by supplying (101) voltage waveforms to pixels (18) of the display (100). It is determined (150), based on information to be displayed (DI) on the display (100) during an image update period (IUP), which pixels (18) have to change their optical state during the image update period (IUP). A sub-area of pixels (WI) is determined (151) which has to be updated during this image update period (IUP). The dimensions of the sub-area (W1) are dynamically determined to cover the pixels (18) which have to change their optical state during this image update period (IUP). The drive circuit (101) is controlled (152) to only address the pixels (18) of the sub-area (WI).
摘要翻译：通过向显示器（100）的像素（18）提供（101）电压波形来驱动双稳态显示器（100）。基于在图像更新周期（IUP）期间在显示器（100）上要显示的信息（DI），哪个像素（18）必须在图像更新周期（IUP）期间改变它们的光学状态，确定（150）。确定在该图像更新周期（IUP）期间必须更新的像素的子区域（WI）（151）。动态地确定子区域（W 1）的尺寸以覆盖在该图像更新周期（IUP）期间必须改变其光学状态的像素（18）。驱动电路（101）被控制（152）以仅对子区域（WI）的像素（18）进行寻址。

47. 发明申请

US20050174341A1 Electrophoretic display device 审中-公开
标题翻译：电泳显示装置
公开(公告)号：US20050174341A1
公开(公告)日：2005-08-11
申请号：US10513272
申请日：2003-04-11
申请人： Mark Johnson , Guofu Zhou
发明人： Mark Johnson , Guofu Zhou
IPC分类号： G02F1/133 , G02F1/167 , G09G3/20 , G09G3/34 , G09G5/00
CPC分类号： G02F1/13306 , G02F1/167 , G02F2203/30
摘要： An electrophoretic display device (1) comprises at least one pixel (10) with an electrophoretic medium, and at least two electrodes (6, 7), as well as drive means (4) via which the pixels can be brought to different optical states comprising an applicator means for applying a voltage difference between the electrodes. The grey levels of the cells are set by providing a steady low voltage to the cells. A pulse voltage may in preferred embodiments be used to bring the grey level close to the intended level.
摘要翻译：电泳显示装置（1）包括具有电泳介质的至少一个像素（10）和至少两个电极（6,7），以及驱动装置（4），通过该驱动装置可以将像素带到不同的光学状态包括用于在电极之间施加电压差的施加器装置。通过向电池提供稳定的低电压来设定电池的灰度级。在优选实施例中，脉冲电压可以用于使灰度级接近预期水平。

48. 发明申请

US20050162378A1 Electrophoretic display panel 有权
标题翻译：电泳显示面板
公开(公告)号：US20050162378A1
公开(公告)日：2005-07-28
申请号：US10515464
申请日：2003-05-13
申请人： Guofu Zhou , Mark Johnson
发明人： Guofu Zhou , Mark Johnson
IPC分类号： G02F1/167 , G09G3/20 , G09G3/34
CPC分类号： G09G3/344 , G02F1/167 , G09G3/2014 , G09G2310/0224 , G09G2310/06 , G09G2310/061 , G09G2320/04 , G09G2330/021
摘要： The electrophoretic display panel (1) for displaying a picture, has a first and a second opposed substrate (8,9), an electrophoretic medium (5) between the substrates (8,9), a plurality of pixels (2), a first and a second electrode (3,4) associated with each pixel (2), drive means (100) and a temperature probe (11). The electrophoretic medium (5) has charged particles (6) in a fluid. The first and the second electrode (3,4) are able to receive a potential difference having a duration and a level. The drive means (100) are able to control the potential differences for displaying the picture, and the temperature probe (11) is able to measure a temperature indicative for the medium temperature. For the display panel (1) to be able to have pixels (2) with substantially reproducible appearances requiring relatively little energy independent of the ambient temperature, the drive means (100) are able to receive the measured temperature from the temperature probe (11) and to control the potential differences in dependence of the measured temperature.
摘要翻译：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），与每个像素（2）相关联的第一和第二电极（3,4），驱动装置（100）和温度探测器（11）。电泳介质（5）在流体中具有带电粒子（6）。第一和第二电极（3,4）能够接收具有持续时间和电平的电位差。驱动装置（100）能够控制用于显示图像的电位差，并且温度探测器（11）能够测量指示介质温度的温度。为了使显示面板（1）能够具有与环境温度无关的相当少的能量的基本上可再现的外观的像素（2），驱动装置（100）能够从温度探测器（11）接收测量的温度，并根据测得的温度来控制潜在的差异。

49. 发明申请

US20070273637A1 Rail-Stabilized Driving Scheme With Image Memory For An Electrophoretic Display 审中-公开
标题翻译：轨迹稳定驱动方案与电泳显示的图像存储器
公开(公告)号：US20070273637A1
公开(公告)日：2007-11-29
申请号：US10599058
申请日：2005-03-22
申请人： Guofu Zhou , Rogier Cortie , Mark Johnson , Leendert Hage
发明人： Guofu Zhou , Rogier Cortie , Mark Johnson , Leendert Hage
IPC分类号： G09G3/34
CPC分类号： G09G3/344 , G09G3/2007 , G09G2310/0245 , G09G2310/061 , G09G2310/068 , G09G2340/16
摘要： An image is updated on a bi-stable display (310) such as an electrophoretic display in a transition from a current image state to a subsequent image state. A voltage waveform (600, 620, 640, 660; 700, 720, 740, 760) is selected based on the current and subsequent image states, and a previous image state. The bi-stable display (310) is driven from the current image state to the subsequent image state using the selected voltage waveform. For a given transition from the current to the next image state, different waveforms are stored for different previous states, e.g., black, dark grey, light grey and white. The different waveforms may have different drive pulse (DR) or reset pulse (RE1, RE2) energies. In a trial and error optimization process, different waveforms with different reset and/or drive pulse energies are tested for different previous image states to see which waveform yields the smallest greyscale error.
摘要翻译：在从当前图像状态到后续图像状态的转变中，在双稳态显示器（310）上更新图像，例如电泳显示器。基于当前和后续图像状态以及先前的图像状态来选择电压波形（600,620,640,660,700,720,740,760）。使用所选择的电压波形，双稳态显示器（310）从当前图像状态驱动到后续图像状态。对于从当前图像状态到下一图像状态的给定转换，存储不同的先前状态的不同波形，例如黑色，深灰色，浅灰色和白色。不同的波形可能具有不同的驱动脉冲（DR）或复位脉冲（RE 1，RE 2）能量。在试错误优化过程中，针对不同的先前图像状态测试具有不同复位和/或驱动脉冲能量的不同波形，以查看哪个波形产生最小的灰度误差。

50. 发明申请

US20070075963A1 Bi-stable display with dc-balanced over-reset driving 审中-公开
标题翻译：具有直流平衡超复位驱动的双稳态显示
公开(公告)号：US20070075963A1
公开(公告)日：2007-04-05
申请号：US10579408
申请日：2004-11-12
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 , G09G2320/0204
摘要： A display device (101) has groups of display elements (118), which are changed from one optical state to another optical state by applying a waveform sequence of potential differences. The waveform enables particles (108, 109) to occupy a position corresponding to the other optical state and includes standard reset, over-reset and grayscale drive. The standard reset part of the waveform applies a potential difference, which is proportional to a distance the particles (108, 109) must move to reach one of the extreme optical states and the over-reset is independent of the distance. Grayscale or color scale accuracy is improved and direct charge on a pixel may be balanced over time with consequent grayscale drift compensated by tuning the grayscale driving pulse.
摘要翻译：显示装置（101）具有通过应用电位差的波形序列从一个光学状态改变到另一个光学状态的显示元件组（118）。波形使得粒子（108,109）能够占据对应于另一光学状态的位置，并且包括标准复位，过度复位和灰阶驱动。波形的标准复位部分施加电位差，其与粒子（108,109）必须移动以达到极端光学状态之一的距离成比例，并且过度复位独立于距离。灰度级或色标精度提高，像素上的直接电荷可以随着时间的推移而平衡，从而通过调整灰度级驱动脉冲来补偿灰度漂移。

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