公开(公告)号：US20070013683A1

公开(公告)日：2007-01-18

申请号：US10574146

申请日：2004-09-27

申请人： Guofu Zhou ,  Masaru Yasui ,  Mark Johnson ,  Robert Zehner ,  Karl Amundson

发明人： Guofu Zhou ,  Masaru Yasui ,  Mark Johnson ,  Robert Zehner ,  Karl Amundson

IPC分类号： G09G5/00

CPC分类号： G09G3/344 ,  G09G2300/08 ,  G09G2310/0251 ,  G09G2310/061 ,  G09G2320/0204 ,  G09G2320/0252 ,  G09G2330/04

摘要： Electrophoretic display units (1) comprising pixels (11) situated between common electrodes (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which endanger transistors (12) coupled to the pixel electrodes (5). These increased driving voltage (V6) to the common electrode (6). To protect the transistors (12) against these increased driving voltages, a setting signal (S1, S2) is supplied to the pixel electrode (5) via the transistor (12) for reducing a voltage across the pixel (11) resulting from a transition in the alternating voltage signal (V6). During driving frame periods (Fd) data pulses (D1, D2, D3, D4, D5, D6) are supplied, and during setting frame periods (Fs), the setting signals (S1, S2) are supplied.

摘要翻译： 包括位于公共电极（6）和像素电极（5）之间的像素（11）的电泳显示单元（1）需要用于缩短总的图像更新时间，跨越像素（11）的增加的驱动电压，其使得耦合的晶体管（12） 到像素电极（5）。 这些增加到公共电极（6）的驱动电压（V 6 S）。 为了保护晶体管（12）免受这些增加的驱动电压的影响，经由晶体管（5）向像素电极（5）提供设置信号（S 1，S 2 2） 12），用于降低由交流电压信号（V 6> 6）中的转变导致的像素（11）两端的电压。 在驱动帧周期（F SUB）期间，数据脉冲（D 1，D 2，D 3，D 3，D 3， 提供SUB> 4 D <5>，D 6>），并且在设定帧周期（F S）期间，设置 提供信号（S 1，S 2）。

公开(公告)号：US20060244713A1

公开(公告)日：2006-11-02

申请号：US10558735

申请日：2004-05-19

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 ,  G09G2310/06 ,  G09G2310/065 ,  G09G2320/02

摘要： The electrophoretic display panel (1) for displaying a picture has a plurality of pixels (2) and drive means (100). Each pixel (2) has two electrodes (3, 4) for receiving a potential difference and charged particles (6) capable of occupying a number of different positions between the electrodes (3, 4). The drive means (100) are able to supply a sequence of potential difference pulses to each pixel (2), each sequence having, to display the picture, a picture pulse for bringing the particles (6) into one of the positions. For the display panel (1) to be able to display a picture of at least relatively medium quality even shortly after the application of the sequences, with respect to at least a number of the pixels (2) having received picture pulses for bringing their particles (6) into extreme positions, the sequence of each pixel (2) out of said number has an additional picture pulse subsequent to the picture pulse, which additional picture pulse serves to prevent the particles (6) from substantially changing their position.

摘要翻译： 用于显示图像的电泳显示面板（1）具有多个像素（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）之间的多个不同位置的带电粒子（6）。 驱动装置（100）能够向每个像素（2）提供一系列电位差脉冲，每个序列具有用于显示图像的用于使颗粒（6）进入其中一个位置的图像脉冲。 为了使显示面板（1）能够在应用序列后不久即可显示至少相对中等质量的图像，相对于具有接收的图像脉冲的至少多个像素（2），用于使其粒子 （6）进入极限位置时，所述数字中的每个像素（2）的序列具有在图像脉冲之后的附加图像脉冲，该附加图像脉冲用于防止颗粒（6）基本上改变其位置。

公开(公告)号：US20060119567A1

公开(公告)日：2006-06-08

申请号：US10559357

申请日：2004-06-03

申请人： Guofu Zhou ,  Masaru Yasui ,  Neculai Ailenei ,  Mark Johnson

发明人： Guofu Zhou ,  Masaru Yasui ,  Neculai Ailenei ,  Mark Johnson

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G3/2014 ,  G09G2300/08 ,  G09G2310/06 ,  G09G2320/02 ,  G09G2340/0428

摘要： Electrophoretic display units (1) are driven more flexibly by creating sequences of frame periods in which at least two frame periods of the sequence of frame periods have a different frame period duration and by selecting frame periods from a sequence of frame periods for providing driving pulses to the pixels (11). The number of possible gray values is increased, and the gray values can be generated more accurately. During the rest of the frame periods not chosen for driving the pixel (11), this pixel (11) keeps its gray value due to the bi-stable character. A frame period duration of a frame period is adapted by delaying a start of a next frame period. By supplying data-dependent signals having sections with a positive amplitude and with a negative amplitude, the net driving result is the difference between the sections with the positive and negative amplitudes, to further increase the number of possible gray values.

摘要翻译： 电泳显示单元（1）通过创建帧周期的序列而被更灵活地驱动，其中帧周期序列的至少两个帧周期具有不同的帧周期持续时间，并且通过从用于提供驱动脉冲的帧周期序列中选择帧周期 到像素（11）。 可能的灰度值的数量增加，可以更准确地生成灰度值。 在未被选择用于驱动像素（11）的帧周期的其余部分期间，该像素（11）由于双稳态特性而保持其灰度值。 通过延迟下一帧周期的开始来适配帧周期的帧周期持续时间。 通过提供具有正幅度和负幅度的部分的数据相关信号，净驱动结果是具有正和负幅度的部分之间的差异，以进一步增加可能的灰度值的数量。

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：US20070008278A1

公开(公告)日：2007-01-11

申请号：US10574148

申请日：2004-09-28

申请人： Mark Johnson ,  Masaru Yasui ,  Guofu Zhou

发明人： Mark Johnson ,  Masaru Yasui ,  Guofu Zhou

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2300/08 ,  G09G2310/0251 ,  G09G2310/0254 ,  G09G2310/061 ,  G09G2310/068 ,  G09G2320/0247

摘要： Electrophoretic display units (100) comprising pixels (11) situated between a common electrode (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which make disturbances more visible. To camouflage such disturbances, instead of one common electrode (6), different counter electrodes (16,17) coupled to different portions (66,67) of the electrophoretic display panel (60) are introduced. First and second counter electrodes (16,17) receive first and second voltage signals (V16, V17) lik˜ alternating voltage signals having opposite phases. First shaking data pulses (V16-VE1, V16-VE3) are supplied to the first portion (66) and second shaking data pulses (V17-VE2, V17-VE4) are supplied to the second portion (67), which first and second shaking data pulses have opposite amplitudes. Setting signals (S1,S2,S3,S4) supplied during setting frame period (FS) reduce voltage swings at pixel electrodes (5).

摘要翻译： 包括位于公共电极（6）和像素电极（5）之间的像素（11）的电泳显示单元（100）需要用于缩短总的图像更新时间，使跨越像素（11）的驱动电压增加，使得扰动更可见。 为了伪装这种干扰，引入耦合到电泳显示面板（60）的不同部分（66,67）的不同对置电极（16,17）而不是一个公共电极（6）。 第一和第二对置电极（16,17）接收具有相反相位的交流电压信号的第一和第二电压信号（V 16，V 17）。 首先将数据脉冲（V 16 - V E1 - ，V 16 -V 3 - E3）的振荡信号提供给第一个 部分（66）和第二振动数据脉冲（V→17→E2，V→17→E4） 被提供给第二部分（67），该第一和第二抖动数据脉冲具有相反的幅度。 在设定帧周期期间提供的设置信号（S 1，S 2，S 2，S 3，S 4，S） 减小像素电极（5）处的电压摆动。

公开(公告)号：US20060227407A1

公开(公告)日：2006-10-12

申请号：US10556517

申请日：2004-05-12

申请人： Guofu Zhou ,  Masaru Yasui ,  Mark Johnson

发明人： Guofu Zhou ,  Masaru Yasui ,  Mark Johnson

IPC分类号： G02B26/00

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

摘要： The electrophoretic display panel (1), for displaying a picture and a subsequent picture, has drive means (100) which are arranged for controlling the potential difference picture potential difference having a picture value and an associated picture duration representing a picture energy for bringing the particles (6) from one the positions for displaying the picture, and subsequently to be an inter-picture potential difference for bringing the particles (6) into one of the extreme positions which is closest to the position of the particles (6) for displaying the subsequent picture, and subsequently to be a subsequent picture potential difference for bringing the particles (6) into one of the positions for displaying the subsequent picture. For the display panel (1) to be able to have inter-picture appearances which are at the largest relatively medium visible and in which the dependency on the history due to the charging of the insulators as a result of the picture potential difference is substantially reduced in the subsequent picture update, the drive means (100) are further arranged for controlling for each picture element (2) the inter-picture potential difference to comprise a pull-back potential difference having a pull-back value and an associated pull-back duration representing a pull-back energy, the pull-back value having a sign opposite to a sign of the picture value and the pull-back energy being substantially equal to the picture energy.

摘要翻译： 用于显示图像和后续图像的电泳显示面板（1）具有驱动装置（100），其被设置用于控制具有图像值的电位差图像电位差和相关联的图像持续时间，其表示用于使 颗粒（6）从用于显示图像的位置中的一个，然后是用于使颗粒（6）进入最接近用于显示的颗粒（6）的位置的极限位置之一的图像间电位差 随后的图像，并且随后成为使颗粒（6）进入用于显示后续图像的位置之一的后续图像电位差。 为了使显示面板（1）能够具有处于最大相对中等可见的图像间外观，并且由于图像电位差而导致由于绝缘体的充电而对历史的依赖性显着降低 在随后的图像更新中，驱动装置（100）还被布置为用于控制每个图像元素（2）的图像间电位差，以包括具有拉回值和相关联的回拉的回拉电位差 表示拉回能量的持续时间，所述拉回值具有与所述图像值的符号相反的符号，并且所述拉回能量基本上等于所述图像能量。

公开(公告)号：US20060279526A1

公开(公告)日：2006-12-14

申请号：US10564383

申请日：2004-07-06

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 ,  G09G3/2022 ,  G09G2300/08 ,  G09G2310/0275 ,  G09G2310/065 ,  G09G2330/021

摘要： Electrophoretic display units (1,100) are provided with switching circuits (50) to reduce the energy necessary for supplying data pulses (DP1, DP2) to pixels (11) via a data electrode (31,32,33,34). This energy is proportional to a differential voltage to be realised and to a capacitance (13) to be charged or discharged, which is formed by a combination of a capacitance of the pixel (11) and a capacitance of the active matrix. Due to this capacitance of the active matrix being much larger, a relatively large amount of energy is necessary. The switching circuit (50) couples the data electrode (31,32,33,34) to a voltage reference source (REF) like ground between two selection pulses (SP1, SP2) to be supplied sequentially to two respective pixels (11) coupled to the same data electrode (31,32,33,34). This reduces the amount of discharging to be realized by the data drivers (3). As a result, the maximum energy necessary is reduced. To reduce the power consumption of the entire electrophoretic display unit (1,100), this should be done preferably for data pulses (DPI, DP2) having amplitudes with opposite polarity only.

摘要翻译： 电泳显示单元（1,100）设置有开关电路（50），以减少通过数据电极（31,32,33,34）向像素（11）提供数据脉冲（DP 1，DP 2）所需的能量。 该能量与要实现的差分电压和通过像素（11）的电容和有源矩阵的电容的组合形成的要充电或放电的电容（13）成比例。 由于有源矩阵的这种电容大得多，所以需要相对大量的能量。 开关电路（50）将数据电极（31,32,33,34）耦合到两个选择脉冲（SP 1，SP 2）之间的类似接地的电压参考源（REF），以顺序地提供给两个相应的像素（11 ）耦合到相同的数据电极（31,32,33,34）。 这减少了由数据驱动器（3）实现的放电量。 结果，减少了所需的最大能量。 为了降低整个电泳显示单元（1,100）的功耗，应优先对具有相反极性的幅度的数据脉冲（DPI，DP 2）进行优化。

公开(公告)号：US20060158572A1

公开(公告)日：2006-07-20

申请号：US10563930

申请日：2004-07-05

申请人： Guofu Zhou ,  Neculai Ailenei ,  Masaru Yasui ,  Mark Johnson

发明人： Guofu Zhou ,  Neculai Ailenei ,  Masaru Yasui ,  Mark Johnson

IPC分类号： G02F1/13

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

摘要： Electrophoretic display units (1) having fixed frame times are driven relatively unflexibly. By introducing line driving signals having timing parameters, the frame rates can be made variable. With variable frame rates, the optical disturbance from shaking pulses (Sh) is reduced and the number of gray values is increased. The timing parameters comprise delays of starts of line driving signals and/or comprise durations of line driving signals. The lines preferably comprise rows. All possible column driving signals and, per column driving signal or per frame, a row delay parameter defining a row delay time, are stored in a memory coupled to the controller (20). Shaking pulses (Sh) are supplied at minimum row delay time, reset pulses (R) are supplied at maximum row delay time, and driving pulses (Dr) are supplied at flexible row delay time, which corresponds with a product of a predefined timeinterval and a step value defined by a number of bits.

摘要翻译： 具有固定帧时间的电泳显示单元（1）相对不灵活地被驱动。 通过引入具有定时参数的线路驱动信号，可以使帧速率可变。 具有可变帧速率，来自抖动脉冲（Sh）的光学干扰减小，灰度值增加。 定时参数包括线路驱动信号的起始延迟和/或包括线路驱动信号的持续时间。 线优选地包括行。 所有可能的列驱动信号以及每列驱动信号或每帧的定义行延迟时间的行延迟参数被存储在耦合到控制器（20）的存储器中。 以最小行延迟时间提供抖动脉冲（Sh），以最大行延迟时间提供复位脉冲（R），并且以灵活的行延迟时间提供驱动脉冲（Dr），其对应于预定时间间隔和 由多个位定义的步长值。

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。