利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

1430 records (took 0.021 seconds)

    DISPLAY DEVICE AND DRIVING METHOD THEREFOR, AND ELECTRONIC PAPER
    3.
    发明公开
    DISPLAY DEVICE AND DRIVING METHOD THEREFOR, AND ELECTRONIC PAPER 审中-实审

    公开(公告)号：EP4390910A1

    公开(公告)日：2024-06-26

    申请号：EP22882762.2

    申请日：2022-10-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： HUANG, Qiangcan ,  LIN, Yizhen

    IPC: G09G3/34 ,  G02F1/167

    CPC classification number: G02F1/167 ,  G09G3/34

    Abstract: Embodiments of this application provide a display device, a driving method thereof, and electronic paper. The display device includes a plurality of pixels. The pixel includes N subpixels whose pixel electrode areas are not equal to each other, the subpixel is capable of displaying M grayscales, and both N and M are integers not less than 2. A ratio of pixel electrode areas of two of the N subpixels is Xn, 2 ≤ X ≤ M, and n is an integer not less than 1. In this application, a quantity of displayed grayscales can be increased, and a refresh rate of a displayed image can be ensured.

    A WIDE OPERATING TEMPERATURE RANGE ELECTROPHORETIC DEVICE
    6.
    发明授权
    A WIDE OPERATING TEMPERATURE RANGE ELECTROPHORETIC DEVICE 有权

    公开(公告)号：EP3060960B1

    公开(公告)日：2018-12-05

    申请号：EP14786496.1

    申请日：2014-10-16

    Applicant: Vlyte Innovations Limited ,  Vlyte Limited

    Inventor： O'KEEFFE, Donal

    IPC: G02F1/167

    CPC classification number: G02F1/167 ,  E06B9/24 ,  E06B2009/2464 ,  G02F2001/1678

    Abstract: An electrophoretic device (101) comprises a first electrode (60) and a second electrode (60) spaced apart from the first electrode (60). An electrophoretic cell (809) containing an electrophoretic ink (830) and one or more optically-transparent, non-planar, solid polymer elements (808) is located between the electrodes (60). The ink (830) includes charged particles (11) of at least one type suspended in an optically-transparent suspending fluid (820). The refractive indices of the solid polymer elements (808) and the suspending fluid (820) are matched to have a difference of less than 0.0075, and for half or more of the operating temperature range of the device (0° C.-70° C.), the thermo-optic coefficients (temperature coefficient of refractive index per Kelvin) of the solid polymer elements (808) and the suspending fluid (820) are matched to have an arithmetic-mean difference of less than 0.0002/K in magnitude.

    BELT DRIVE FOR REWRITABLE DISPLAY MEDIUM
    8.
    发明公开
    BELT DRIVE FOR REWRITABLE DISPLAY MEDIUM 审中-公开

    公开(公告)号：EP3368945A1

    公开(公告)日：2018-09-05

    申请号：EP15907520.9

    申请日：2015-10-30

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： LEONI, Napoleon J ,  ZHOU, Chuangyu ,  BIRECKI, Henryk ,  GILA, Omer

    IPC: G02F1/167

    CPC classification number: G06F3/03548 ,  G02F1/167 ,  G09G3/344 ,  H01J27/02

    Abstract: A belt drive includes a belt and at least one pair of spaced apart rails extending in a first direction and defining a gap. The belt is aligned with the gap and to be driven in an endless loop with the belt including a first movable portion external to the gap on a first side of the rails and a second movable portion biased to be recessed within the gap on an opposite second side of the rails. A rewritable display medium is releasably engageable in a sandwiched position between a slidable contact surface of the rails and a first segment of the second movable portion external to the gap to move the display medium in the first direction for contact-less imaging via a unit spaced from the rails.

Patent Agency Ranking