公开(公告)号：WO2022047357A1

公开(公告)日：2022-03-03

申请号：PCT/US2021/048350

申请日：2021-08-31

Applicant: E INK CORPORATION

Inventor： SIM, Teck Ping ,  PALCHOUDHURI, Paroma ,  CROUNSE, Kenneth R. ,  BEN-DOV, Yuval ,  AMUNDSON, Karl Raymond

IPC: G09G3/34 ,  G02F1/167 ,  G02F1/1685

Abstract: A method for driving an electrophoretic display having a plurality of display pixels, the method comprising dividing the plurality of display pixels into a plurality of groups, updating one group of display pixels from the plurality of groups of display pixels, the one group of display pixels includes at least n number of adjacent display pixels being updated at the same time, wherein n is an integer greater than or equal to 2, and applying an edge clearing waveform to no more than (nx2)+2 number of cardinal pixels of the one group of display pixels.

公开(公告)号：WO2019144097A1

公开(公告)日：2019-07-25

申请号：PCT/US2019/014485

申请日：2019-01-22

Applicant: E INK CORPORATION

Inventor： SIM, Teck Ping ,  BEN-DOV, Yuval ,  AU, Joanna F. ,  CROUNSE, Kenneth R.

IPC: G09G3/34 ,  G02F1/1685

Abstract: A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods includes driving an electro-optic display having a plurality of display pixels and controlled by a display controller, the display controller associated with a host for providing operational instructions to the display controller, the method may include updating the display with a first image, updating the display with a second image subsequent to the first image, processing image data associated with the first image and the second image to identify display pixels with edge artifacts and generate image data associated with the identified pixels, storing the image data associated pixels with edge artifacts at a memory location, and initiating a waveform to clear the edge artifacts.

公开(公告)号：WO2015017624A1

公开(公告)日：2015-02-05

申请号：PCT/US2014/049063

申请日：2014-07-31

Applicant: E INK CORPORATION

Inventor： EMELIE, Pierre-Yves ,  CROUNSE, Kenneth, R. ,  AMUNDSON, Karl, Raymond ,  BEN-DOV, Yuval ,  SIM, Teck, Ping ,  O'MALLEY, Timothy, J.

IPC: G09G3/34

CPC classification number: G09G3/344 ,  G09G3/3433 ,  G09G2300/0473 ,  G09G2300/06 ,  G09G2310/04 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2320/0257 ,  G09G2320/041 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2340/12

Abstract: Display controllers and driving methods related to those in US 2013/0194250. 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) 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 balanced pulse pairs and a one top-off pulse; (c) 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; and (d) driving a bistable display in which background pixels not undergoing an optical change are refreshed to correct optical state drift.

Abstract translation: 与美国2013/0194250相关的显示控制器和驾驶方法。 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中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，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，应用于像素平衡脉冲对和一个顶置脉冲; （c）通过在预先存在的图像内容上重叠非矩形项目然后移除项目来驱动双稳态显示，其中只有项目区域中的像素进行转换; 和（d）驱动其中不进行光学变化的背景像素被刷新以校正光学状态漂移的双稳态显示。

公开(公告)号：WO2022060715A1

公开(公告)日：2022-03-24

申请号：PCT/US2021/050237

申请日：2021-09-14

Applicant: E INK CORPORATION

Inventor： TELFER, Stephen J. ,  BEN-DOV, Yuval ,  SIM, Teck Ping ,  TSAI, Sherry Hsin-Yi

IPC: G02F1/167 ,  G02F1/1676 ,  G02F1/1675

Abstract: Improved electrophoretic media including a first particle of a first polarity and three particles of the opposite polarity, wherein the first particle and optionally one of the particles of the opposite polarity undergo a diminution of electrophoretic mobility with increased electric field. Such electrophoretic media enable full-color displays with very fast updates between white and black pixels.

公开(公告)号：WO2021097179A1

公开(公告)日：2021-05-20

申请号：PCT/US2020/060368

申请日：2020-11-13

Applicant: E INK CORPORATION

Inventor： SIM, Teck Ping ,  BEN-DOV, Yuval

IPC: G09G3/34 ,  G09G3/38

Abstract: Methods for driving electro-optic displays including updating a first portion of the display using a drive scheme, the drive scheme configured to display white text on a black background; performing a time delay subsequent to the updating the first portion of the display; and updating a second portion of the display using the drive scheme to create a swiping motion across the display.

公开(公告)号：WO2018160912A1

公开(公告)日：2018-09-07

申请号：PCT/US2018/020566

申请日：2018-03-02

Applicant: E INK CORPORATION

Inventor： CROUNSE, Kenneth R. ,  AMUNDSON, Karl Raymond ,  SIM, Teck Ping ,  BEN-DOV, Yuval ,  HO, Chih-Hsiang

IPC: G09G3/34

Abstract: 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.

公开(公告)号：WO2021252283A1

公开(公告)日：2021-12-16

申请号：PCT/US2021/035885

申请日：2021-06-04

Applicant: E INK CORPORATION

Inventor： PAYDAVOSI, Sarah ,  BEN-DOV, Yuval

IPC: G09G3/34 ,  G02F1/16757 ,  G02B5/20 ,  G02F1/1516 ,  G09G2340/16 ,  G09G3/344

Abstract: There are provided methods for driving an electro-optic display having a plurality of display pixels, a such method includes applying a first waveform chosen from a first set of waveforms for black-to-white and white-to-white transitions if a pixel is determined to display color, and applying a second waveform chosen from a second set of waveforms for black-to-white and white-to-white transitions if a pixel is determined to display a grayscale image.

公开(公告)号：WO2019055486A1

公开(公告)日：2019-03-21

申请号：PCT/US2018/050618

申请日：2018-09-12

Applicant: E INK CORPORATION

Inventor： SIM, Teck Ping ,  BEN-DOV, Yuval ,  AU, Joanna F. ,  CROUNSE, Kenneth R.

IPC: G09G5/36 ,  G09G5/02

Abstract: 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.

公开(公告)号：WO2017146787A1

公开(公告)日：2017-08-31

申请号：PCT/US2016/060427

申请日：2016-11-04

Applicant: E INK CORPORATION

Inventor： BEN-DOV, Yuval ,  AMUNDSON, Karl Raymond

IPC: G09G3/34

CPC classification number: G09G3/344 ,  G09G2310/062 ,  G09G2320/041 ,  G09G2340/0435

Abstract: The performance of an electro-optic display, for example, a bistable electro-optic display, can be improved by modifying the frame rate of a base waveform used to drive a transition between gray states. Such modifications permit fine control of gray levels with reduced artifacts. The described methods require less memory to store all of the waveforms needed to achieve good performance of an electro-optic display over a range of temperatures.

Abstract translation: 通过修改用于驱动灰度状态之间的转换的基本波形的帧速率，可以改进电光显示器（例如，双稳态电光显示器）的性能。 这种修改允许精简控制灰度并减少伪像。 所描述的方法需要较少的存储器来存储在一定温度范围内实现电光显示器的良好性能所需的所有波形。

公开(公告)号：WO2016126963A1

公开(公告)日：2016-08-11

申请号：PCT/US2016/016598

申请日：2016-02-04

Applicant: E INK CORPORATION

Inventor： SIM, Teck Ping ,  EMELIE, Pierre-Yves ,  CROUNSE, Kenneth R. ,  BEN-DOV, Yuval

IPC: G09G3/20 ,  G09G5/00

CPC classification number: G09G3/344 ,  G09G5/024 ,  G09G2320/0214 ,  G09G2320/0257

Abstract: 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").

Abstract translation: 本发明提供了用于驱动具有多个像素的电光显示器的方法和相关装置，以在黑色背景（“暗模式”）下显示白色文本，同时减少边缘伪影，重影和闪光更新。 本发明通过根据算法对边缘区域施加特殊的波形转换以及管理由特殊转变引入的直流不平衡的方法来减少边缘伪影的积累。 可以通过识别特定边缘像素来接收称为反向顶置脉冲（“iTop Pulse”）的特殊转换，并且由于iTop脉冲是直流不平衡的，以便随后从显示器中释放剩余电压，可以实现边缘伪影清除。 本发明还提供了用于驱动具有多个像素的电光显示器的方法和相关装置，以在黑色背景（“暗模式”）上显示白色文本，同时通过识别边缘伪影和闪光更新来减少由于边缘伪影和闪光更新而引起的重影的出现 特定边缘像素接收称为反向全脉冲转换（“iFull脉冲”）的特殊转换。