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1. 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。

2. 发明授权

US10825405B2 Electro-optic displays 有权
公开(公告)号：US10825405B2
公开(公告)日：2020-11-03
申请号：US16745473
申请日：2020-01-17
申请人： E INK CORPORATION
发明人： Pierre-Yves Emelie , Teck Ping Sim , Kenneth R. Crounse , Karl Raymond Amundson , Chih-Hsiang Ho
IPC分类号： G09G3/34 , G02F1/1368 , G02F1/16766
摘要： A thin film transistor (TFT) backplane comprising a plurality of electrodes. Each of the plurality of electrodes is coupled to circuitry comprising: a first thin film transistor (TFT) coupled to the electrode for transmitting waveforms to the electrode, and a second TFT coupled to the electrode for discharging remnant charges from the electrode, wherein the second TFT is activated subsequent to the first TFT being deactivated.

3. 发明授权

US11195480B2 Partial update driving methods for bistable electro-optic displays and display controllers using the same 有权
公开(公告)号：US11195480B2
公开(公告)日：2021-12-07
申请号：US15805431
申请日：2017-11-07
申请人： E INK CORPORATION
发明人： Pierre-Yves Emelie , Kenneth R. Crounse , Karl Raymond Amundson
IPC分类号： G09G3/34
摘要： There are provided display controllers and driving methods related to those described in US Published Patent Application No. 2013/0194250. These include (a) a display controller having an update buffer, means for removing from the update buffer pixels not requiring updating, and means to ensure that pixels having certain special states are not removed from the update buffer; (b) a method of driving a bistable display wherein, in a pixel undergoing a white-to-white transition and lying adjacent another pixel undergoing a visible transition, there is applied to the pixel one or more balanced pulse pairs and at least one top-off pulse; (c) a method of driving a bistable display by overlaying a non-rectangular item over a pre-existing image content and then removing the item, where only pixels in the region of the item perform transitions (including self-transitions); and (d) a method of driving a bistable display in which a proportion of background pixels not undergoing an optical change are subjected to a refresh pulse to correct optical state drift.

4. 发明授权

US11107425B2 Electro-optic displays with resistors for discharging remnant charges 有权
公开(公告)号：US11107425B2
公开(公告)日：2021-08-31
申请号：US17032189
申请日：2020-09-25
申请人： E INK CORPORATION
发明人： Pierre-Yves Emelie , Teck Ping Sim , Kenneth R. Crounse , Karl Raymond Amundson , Chih-Hsiang Ho
IPC分类号： G09G3/34 , G02F1/1368 , G02F1/16766
摘要： An electro-optic display having a plurality of display pixels, each of the plurality of display pixels comprising: a pixel electrode for driving the display pixel; a thin film transistor (TFT) coupled to the pixel electrode for transmitting waveforms to the pixel electrode; a resistor coupled to the pixel electrode for discharging remnant charges from the display subsequent to the TFT being de-activated; and a storage capacitor coupled to the pixel electrode and placed in parallel with the resistor. A time constant of a circuit comprising the pixel electrode, the resistor, and the storage capacitor is larger than a driving frame time of the electro-optic display.

5. 发明申请

US20160133196A1 METHODS FOR DRIVING ELECTRO-OPTIC DISPLAYS 审中-公开
标题翻译：驱动电子显示屏的方法
公开(公告)号：US20160133196A1
公开(公告)日：2016-05-12
申请号：US14447707
申请日：2014-07-31
申请人： E INK CORPORATION
发明人： Pierre-Yves Emelie , Kenneth R. Crounse , Karl Raymond Amundson , Yuval Ben-Dov , Teck Ping Sim , Timothy J. O'Malley
IPC分类号： G09G3/34
CPC分类号： G09G3/344 , G09G3/3433 , G09G2300/0473 , G09G2300/06 , G09G2310/04 , G09G2310/08 , G09G2320/0209 , G09G2320/0257 , G09G2320/041 , G09G2320/045 , G09G2320/048 , G09G2340/12 , Y02E50/10 , Y02E50/14 , Y02E50/30
摘要： There are provided display controllers and driving methods related to those described in US Published Patent Application No. 2013/0194250. These include (a) a display controller having an update buffer, means for removing from the update buffer pixels not requiring updating, and means to ensure that pixels having certain special states are not removed from the update buffer; (b) a method of driving a bistable display wherein, in a pixel undergoing a white-to-white transition and lying adjacent another pixel undergoing a visible transition, there is applied to the pixel one or more balanced pulse pairs and at least one top-off pulse; (c) a method of driving a bistable display by overlaying a non-rectangular item over a pre-existing image content and then removing the item, where only pixels in the region of the item perform transitions (including self-transitions); and (d) a method of driving a bistable display in which a proportion of background pixels not undergoing an optical change are subjected to a refresh pulse to correct optical state drift.
摘要翻译：提供了与美国公开专利申请号2013/0194250中描述的相关的显示控制器和驱动方法。这些包括（a）具有更新缓冲器的显示控制器，用于从更新缓冲器中移除不需要更新的像素的装置，以及确保没有从更新缓冲器移除具有某些特殊状态的像素的装置; （b）驱动双稳态显示器的方法，其中在经历白 - 白转换的像素中并且位于经历可见转变的另一像素的像素中，向所述像素施加一个或多个平衡脉冲对和至少一个顶部关闭脉冲（c）一种通过在预先存在的图像内容上叠加非矩形项目然后去除该项目的方式来驱动双稳态显示器，其中仅该项目区域中的像素执行转换（包括自转换）; 和（d）驱动双稳态显示器的方法，其中不经历光学变化的一部分背景像素经受刷新脉冲以校正光学状态漂移。

6. 发明授权

US11030936B2 Methods and apparatus for operating an electro-optic display in white mode 有权
公开(公告)号：US11030936B2
公开(公告)日：2021-06-08
申请号：US15427202
申请日：2017-02-08
申请人： E Ink Corporation
发明人： Pierre-Yves Emelie , Kenneth R. Crounse
IPC分类号： G09G3/20 , G09G3/34
摘要： Techniques for operating an electro-optic display to reduce the appearance of light edge artifacts in displayed images are described. A method for operating the electro-optic display includes detecting a null state transition of a first pixel when transitioning from a first image to a second image. The method further includes determining whether a threshold number of cardinal neighbors of the first pixel transition from a black state to a white state when transitioning from the first image to the second image. In response to a subsequent transition to a third image, the method further includes applying a voltage signal to the first pixel, wherein the voltage signal has a waveform configured to generate an optical black state for the first pixel.

7. 发明授权

US10163406B2 Electro-optic displays displaying in dark mode and light mode, and related apparatus and methods 有权
公开(公告)号：US10163406B2
公开(公告)日：2018-12-25
申请号：US15015822
申请日：2016-02-04
申请人： E Ink Corporation
发明人： Teck Ping Sim , Pierre-Yves Emelie , Kenneth R. Crounse , Yuval Ben-Dov
IPC分类号： G09G3/34 , G09G3/20 , G09G5/02
摘要： This invention provides methods of and related apparatus for driving an electro-optic display having a plurality of pixels to display white text on a black background (“dark mode”) while reducing edge artifacts, ghosting and flashy updates. The present invention reduces the accumulation of edge artifacts by applying a special waveform transition to edge regions according to an algorithm along with methods to manage the DC imbalance introduced by the special transition. Edge artifact clearing may be achieved by identifying specific edge pixels to receive a special transition called an inverted top-off pulse (“iTop Pulse”) and, since the iTop Pulse is DC imbalanced, to subsequently discharge remnant voltage from the display. This invention further provides methods of and related apparatus for driving an electro-optic display having a plurality of pixels to display white text on a black background (“dark mode”) while reducing the appearance of ghosting due to edge artifacts and flashy updates by identifying specific edge pixels to receive a special transition called an inverted Full Pulse transition (“iFull Pulse”).

8. 发明申请

US20210358423A1 METHODS FOR DRIVING ELECTRO-OPTIC DISPLAYS 有权
公开(公告)号：US20210358423A1
公开(公告)日：2021-11-18
申请号：US17386725
申请日：2021-07-28
申请人： E INK CORPORATION
发明人： Pierre-Yves Emelie , Kenneth R. Crounse , Karl Raymond Amundson
IPC分类号： G09G3/34
摘要： There are provided display controllers and driving methods related to those described in US Published Patent Application No. 2013/0194250. These include (a) a display controller having an update buffer, means for removing from the update buffer pixels not requiring updating, and means to ensure that pixels having certain special states are not removed from the update buffer; (b) a method of driving a bistable display wherein, in a pixel undergoing a white-to-white transition and lying adjacent another pixel undergoing a visible transition, there is applied to the pixel one or more balanced pulse pairs and at least one top-off pulse; (c) a method of driving a bistable display by overlaying a non-rectangular item over a pre-existing image content and then removing the item, where only pixels in the region of the item perform transitions (including self-transitions); and (d) a method of driving a bistable display in which a proportion of background pixels not undergoing an optical change are subjected to a refresh pulse to correct optical state drift.

9. 发明授权

US10832622B2 Methods for driving electro-optic displays 有权
公开(公告)号：US10832622B2
公开(公告)日：2020-11-10
申请号：US15945268
申请日：2018-04-04
申请人： E INK CORPORATION
发明人： Pierre-Yves Emelie , Ana L. Lattes , Kenneth R. Crounse , Chih-Hsiang Ho
IPC分类号： G09G3/34 , G02F1/167 , G02F1/1675 , G02F1/1681
摘要： A driving method is provided for an electric-optic display having a plurality of display pixels, the method including dividing the plurality of display pixels into multiple groups of pixels, applying at least one waveform structure to the multiple groups of pixels, the at least one waveform structure having a driving section for updating the multiple groups of pixels, and updating the multiple groups of pixels in a contiguous fashion such that only one group of display pixels completes the driving section at any given time.

10. 发明授权

US10573257B2 Electro-optic displays 有权
公开(公告)号：US10573257B2
公开(公告)日：2020-02-25
申请号：US15992363
申请日：2018-05-30
申请人： E Ink Corporation
发明人： Pierre-Yves Emelie , Teck Ping Sim , Kenneth R. Crounse , Karl Raymond Amundson , Chih-Hsiang Ho
IPC分类号： G09G3/34 , G02F1/167 , G02F1/1368 , G02F1/16766 , G02F1/1676
摘要： An electro-optic display having an electrophoretic material configured for displaying images, and an active component coupled to the electrophoretic material for discharging charges within the electrophoretic material.

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