公开(公告)号：US20210366346A1

公开(公告)日：2021-11-25

申请号：US17386982

申请日：2021-07-28

Applicant: E Ink Corporation

Inventor： Demetrious Mark HARRINGTON ,  Kenneth R. CROUNSE ,  Karl Raymond AMUNDSON ,  Teck Ping SIM ,  Matthew J. APREA

IPC: G09G3/20 ,  G09G3/34

Abstract: 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.

公开(公告)号：US20210358424A1

公开(公告)日：2021-11-18

申请号：US17388417

申请日：2021-07-29

Applicant: E INK CORPORATION

Inventor： Pierre-Yves EMELIE ,  Teck Ping SIM ,  Kenneth R. CROUNSE ,  Karl Raymond AMUNDSON ,  Chih-Hsiang HO ,  Aaron CHEN

IPC: G09G3/34 ,  G02F1/1368 ,  G02F1/16766

Abstract: An electrophoretic display having a plurality of display pixels, each of the plurality of display pixels may include a pixel electrode for driving the display pixel, a single thin film transistor (TFT) coupled to the pixel electrode for transmitting waveforms to the pixel electrode, a front plane laminate (FPL) coupled to the single thin film transistor, and a storage capacitor coupled to the pixel electrode and placed in parallel with the FPL, where the storage capacitor is configured to be sufficiently ohmically conductive to allow the discharge of remnant voltages from the FPL through the storage capacitor.

公开(公告)号：US20210248972A1

公开(公告)日：2021-08-12

申请号：US17244352

申请日：2021-04-29

Applicant: E INK CORPORATION

Inventor： Sunil Krishna SAINIS ,  Teck Ping SIM ,  Richard J. PAOLINI, JR. ,  Stephen J. TELFER

IPC: G09G3/36 ,  G02F1/1343 ,  G02F1/1339

Abstract: An electro-optic display comprising, in order: a light-transmissive layer of conductive material; a layer of bistable electro-optic medium; a layer of light-shielding material; a plurality of pixel electrodes; a layer of photoconductive material; and one or more light emitters. In one exemplary embodiment, the layer of photoconductive material is adapted to bridge a gap between an address line and at least one of the pixel electrodes when the photoconductive material is in a low impedance state. In another, non-exclusive embodiment, the electro-optic display further comprises a second electrode layer between the layer of photoconductive material and the one or more light emitters and a driver adapted to apply voltage between the light-transmissive layer of conductive material and the second electrode layer.

公开(公告)号：US20210150993A1

公开(公告)日：2021-05-20

申请号：US17099950

申请日：2020-11-17

Applicant: E INK CORPORATION

Inventor： Karl Raymond AMUNDSON ,  Teck Ping SIM

IPC: G09G3/34

Abstract: Methods for driving an electro-optic display having a plurality of display pixels and each of the plurality of display pixels is associated with a display transistor, the method includes applying a first voltage to a transistor associated with a display pixel for a first duration of time to drain remnant voltages from the display pixel, applying a second voltage to the transistor for a second duration of time to stop the draining of remnant voltages from the display pixel, and applying a third voltage to the transistor for a third duration of time to drain remnant voltages from the display pixel.

公开(公告)号：US20190172401A1

公开(公告)日：2019-06-06

申请号：US16253609

申请日：2019-01-22

Applicant: E Ink Corporation

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

IPC: G09G3/34

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：US20170301274A1

公开(公告)日：2017-10-19

申请号：US15632730

申请日：2017-06-26

Applicant: E Ink Corporation

Inventor： Demetrious Mark HARRINGTON ,  Kenneth R. CROUNSE ,  Karl Raymond AMUNDSON ,  Teck Ping SIM ,  Matthew J. APREA

IPC: G09G3/20 ,  G09G3/34

CPC classification number: G09G3/2007 ,  G09G3/344 ,  G09G2230/00 ,  G09G2340/16

Abstract: 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.