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11. 发明授权

US11145235B2 Methods for driving electro-optic displays 有权
公开(公告)号：US11145235B2
公开(公告)日：2021-10-12
申请号：US15632730
申请日：2017-06-26
申请人： E Ink Corporation
发明人： Demetrious Mark Harrington , Kenneth R. Crounse , Karl Raymond Amundson , Teck Ping Sim , Matthew J. Aprea
IPC分类号： G09G3/20 , G09G3/34
摘要： An electro-optic display having a plurality of pixels is driven from a first image to a second image using a first drive scheme, and then from the second image to a third image using a second drive scheme different from the first drive scheme and having at least one impulse differential gray level having an impulse potential different from the corresponding gray level in the first drive scheme. Each pixel which is in an impulse differential gray level in the second image is driven from the second image to the third image using a modified version of the second drive scheme which reduces its impulse differential The subsequent transition from the third image to a fourth image is also conducted using the modified second drive scheme but after a limited number of transitions using the modified second drive scheme, all subsequent transitions are conducted using the unmodified second drive scheme.

12. 发明授权

US10997930B2 Methods and circuitry for driving display devices 有权
公开(公告)号：US10997930B2
公开(公告)日：2021-05-04
申请号：US15165795
申请日：2016-05-26
申请人： E Ink Corporation
发明人： Kenneth R. Crounse
IPC分类号： G09G3/34
摘要： A display device is operated by using several iterations of a scan phase followed by a global drive phase. In the scan phase, the state of each pixel in the display device is set to either “enabled” or “disabled”, during which time a global drive generator is inactive. Then, in the global drive phase, a global drive signal is sent to the display device. Only the subset of enabled pixels is affected by the global drive signal, which causes the enabled pixels to perform a transition to a desired display state. The sequence of the scan phase followed by the global drive phase is then repeated up to the number of unique transitions required to update the display device.

13. 发明授权

US10852568B2 Electro-optic displays and driving methods 有权
公开(公告)号：US10852568B2
公开(公告)日：2020-12-01
申请号：US15910039
申请日：2018-03-02
申请人： E Ink Corporation
发明人： Kenneth R. Crounse , Karl Raymond Amundson , Teck Ping Sim , Yuval Ben-Dov , Chih-Hsiang Ho
IPC分类号： G09G3/34 , G02F1/00 , G02F1/1685
摘要： This invention provides methods of and related apparatus for driving an electro-optic display having a plurality of pixels. The method includes dividing the plurality of pixels into n groups, where n is an integer larger than 1, applying a full clearing waveform to at least one group of the n groups of pixels, and applying a top off waveform to cardinal pixels of the at least one group of pixels.

14. 发明授权

US10657869B2 Methods for driving color electrophoretic displays 有权
公开(公告)号：US10657869B2
公开(公告)日：2020-05-19
申请号：US15602369
申请日：2017-05-23
申请人： E Ink Corporation
发明人： Stephen J. Telfer , Richard J. Paolini, Jr. , Karl Raymond Amundson , Kenneth R. Crounse , Alain Bouchard , Sunil Krishna Sainis
IPC分类号： G09G3/34 , G09G3/20 , G02F1/167 , G02F1/1675
摘要： An electrophoretic medium includes a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.

15. 发明授权

US10270939B2 Method for rendering color images 有权
公开(公告)号：US10270939B2
公开(公告)日：2019-04-23
申请号：US15592515
申请日：2017-05-11
申请人： E Ink Corporation
发明人： Kenneth R. Crounse
IPC分类号： H04N1/52 , H04N1/60 , H04N1/405
摘要： An image is rendered on a display having a limited number of primary colors by (104) combining input data representing the color of a pixel to be rendered with error data to form modified input data, determining in a color space the simplex (208—typically a tetrahedron) enclosing the modified input data and the primary colors associated with the simplex, converting (210) the modified image data to barycentric coordinates based upon the primary colors associated with the simplex and (212) setting output data to the primary having the largest barycentric coordinate, calculating (214) the difference between the modified input data and the output data for the pixel, thus generating error data, applying (106) this error data to at least one later-rendered pixel, and applying the output data to the display and thus rendering the image on the display. Apparatus and computer-storage media for carrying out this process are also provided.

16. 发明授权

US09697778B2 Reverse driving pulses in electrophoretic displays 有权
公开(公告)号：US09697778B2
公开(公告)日：2017-07-04
申请号：US14277107
申请日：2014-05-14
申请人： E INK CORPORATION
发明人： Stephen J. Telfer , Stephen Bull , Alain Bouchard , Craig A. Herb , Kosta Ladavac , Ana L. Lattes , Jennifer M. Morrison , Richard J. Paolini, Jr. , Michael Thomas Regan , Luke M. Slominski , Lee Yezek , Kenneth R. Crounse , J. Ryan Kruse , Christopher L. Hoogeboom , Jason D. Feick , David Darrell Miller
IPC分类号： G09G3/34 , G02F1/167
CPC分类号： G09G3/344 , G02F1/167 , G02F2001/1678 , G09G2310/06 , G09G2310/068
摘要： An electrophoretic medium comprises a fluid and at least one species of particles disposed, When a first addressing impulse is applied to the medium, the first species of particles move in one direction relative to the electric field, but when a second addressing impulse, larger than the first addressing impulse, is applied to the medium, the first species of particles move in the opposed direction relative to the electric field.

17. 发明申请

US20160351131A1 METHODS AND CIRCUITRY FOR DRIVING DISPLAY DEVICES 审中-公开
标题翻译：驱动显示设备的方法和电路
公开(公告)号：US20160351131A1
公开(公告)日：2016-12-01
申请号：US15165795
申请日：2016-05-26
申请人： E Ink Corporation
发明人： Kenneth R. Crounse
IPC分类号： G09G3/34 , G09G3/20
CPC分类号： G09G3/344 , G09G2300/0842 , G09G2310/0251 , G09G2310/063
摘要： A display device is operated by using several iterations of a scan phase followed by a global drive phase. In the scan phase, the state of each pixel in the display device is set to either “enabled” or “disabled”, during which time a global drive generator is inactive. Then, in the global drive phase, a global drive signal is sent to the display device. Only the subset of enabled pixels is affected by the global drive signal, which causes the enabled pixels to perform a transition to a desired display state. The sequence of the scan phase followed by the global drive phase is then repeated up to the number of unique transitions required to update the display device.
摘要翻译：显示设备通过使用扫描阶段的几次迭代跟随全局驱动阶段来操作。在扫描阶段，显示设备中每个像素的状态被设置为“启用”或“禁用”，在此期间全局驱动器生成器处于非活动状态。然后，在全局驱动阶段，将全局驱动信号发送到显示装置。只有启用像素的子集才受到全局驱动信号的影响，导致启用的像素执行转换到所需的显示状态。然后重复跟随全局驱动阶段的扫描阶段的顺序，直到更新显示设备所需的唯一转换次数。

18. 发明申请

US20160225321A1 ELECTRO-OPTIC DISPLAYS WITH REDUCED REMNANT VOLTAGE, AND RELATED APPARATUS AND METHODS 审中-公开
标题翻译：具有降低的电压的电光显示器及相关装置和方法
公开(公告)号：US20160225321A1
公开(公告)日：2016-08-04
申请号：US15014236
申请日：2016-02-03
申请人： E Ink Corporation
发明人： Teck Ping Sim , Kenneth R. Crounse , Pierre-Yves Emelie , Karl Raymond Amundson
IPC分类号： G09G3/34
摘要： Electro-optic displays with reduced remnant voltage, and related apparatus and methods are provided. A remnant voltage of a pixel of an electro-optic display may be discharged by activating the pixel's transistor and setting the voltages of the front and rear electrodes of the pixel to approximately the same voltage for a specified period of time, and/or until the amount of remnant voltage remaining in the pixel is less than a threshold amount. The remnant voltages of substantially all pixels or a subset of pixels in an active matrix electro-optic display may be simultaneously discharged. The simultaneous discharge of the remnant voltages of pixels may take place when the pixels are in a same state, characterized by (1) the transistor of each pixel being active, and (2) the voltages applied to the front and rear electrodes of each pixel being approximately equal.
摘要翻译：提供具有降低的残余电压的电光显示器以及相关的装置和方法。可以通过激活像素的晶体管并将像素的前电极和后电极的电压设置为大约相同的电压达指定的时间段来放电电光显示器的像素的残余电压，和/或直到像素中残留的剩余电压的量小于阈值量。基本上所有像素或有源矩阵电光显示器中的像素子集的剩余电压可以同时放电。当像素处于相同状态时，可能会发生像素剩余电压的同时放电，其特征在于：（1）每个像素的晶体管是有效的，以及（2）施加到每个像素的前后电极的电压大致相等。

19. 发明申请

US20140240373A1 METHODS FOR DRIVING ELECTRO-OPTIC DISPLAYS 有权
标题翻译：驱动电子显示屏的方法
公开(公告)号：US20140240373A1
公开(公告)日：2014-08-28
申请号：US14190135
申请日：2014-02-26
申请人： E INK CORPORATION
发明人： Demetrious Mark Harrington , Kenneth R. Crounse , Karl Raymond Amundson , Teck Ping Sim , Matthew J. Aprea
IPC分类号： G09G3/20 , G09G3/34
CPC分类号： G09G3/2007 , G09G3/344 , G09G2230/00 , G09G2340/16
摘要： An electro-optic display having a plurality of pixels is driven from a first image to a second image using a first drive scheme, and then from the second image to a third image using a second drive scheme different from the first drive scheme and having at least one impulse differential gray level having an impulse potential different from the corresponding gray level in the first drive scheme. Each pixel which is in an impulse differential gray level in the second image is driven from the second image to the third image using a modified version of the second drive scheme which reduces its impulse differential The subsequent transition from the third image to a fourth image is also conducted using the modified second drive scheme but after a limited number of transitions using the modified second drive scheme, all subsequent transitions are conducted using the unmodified second drive scheme.
摘要翻译：具有多个像素的电光显示器使用第一驱动方案从第一图像驱动到第二图像，然后使用不同于第一驱动方案的第二驱动方案从第二图像驱动到第三图像，并且具有在第一驱动方案中具有不同于相应灰度级的脉冲电位的至少一个脉冲差分灰度级。使用减小其脉冲差的第二驱动方案的修改版本，将第二图像中处于脉冲差分灰度级的每个像素从第二图像驱动到第三图像。从第三图像到第四图像的后续转换是也使用修改的第二驱动方案进行，但是在使用修改的第二驱动方案的有限数量的转换之后，使用未修改的第二驱动方案进行所有后续转换。

20. 发明授权

US11423852B2 Methods for driving electro-optic displays 有权
公开(公告)号：US11423852B2
公开(公告)日：2022-08-23
申请号：US16128996
申请日：2018-09-12
申请人： E Ink Corporation
发明人： Teck Ping Sim , Yuval Ben-Dov , Joanna F. Au , Kenneth R. Crounse
IPC分类号： G09G3/34 , G09G3/20
摘要： A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes updating a display having a plurality of display pixels with a first image, identifying display pixels with edge artifacts after the first image update, and storing the identified display pixels information in a memory.

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