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    ENVIRONMENTAL ENERGY COLLECTION ELECTRONIC PRICE TAG
    4.
    发明公开
    ENVIRONMENTAL ENERGY COLLECTION ELECTRONIC PRICE TAG 审中-公开

    公开(公告)号：EP4394746A1

    公开(公告)日：2024-07-03

    申请号：EP23208749.4

    申请日：2023-11-09

    申请人： Suzhou Etag-Technology Co., Ltd.

    发明人： HU, Xiande ,  LI, Bailiang ,  HUANG, Haipeng ,  XIA, Xinglong

    IPC分类号： G09F3/02 ,  G09F3/20 ,  G09F9/37 ,  G09F27/00

    CPC分类号： G09F3/208 ,  G09F27/007 ,  G09F9/372 ,  G09F3/204

    摘要： This application discloses an environmental energy collection electronic price tag, which includes a solar panel (1), an electronic paper display screen (2), a printed circuit board (3) and a super-capacitor (5). The printed circuit board (3) is provided thereon with a signal transceiver antenna and a radio frequency collection antenna. The signal transceiver antenna is configured to send and receive a wireless radio frequency signal, and the radio frequency collection antenna is configured to collect radio frequency signal energy sent by another electronic price tag in environment. An operation frequency of the signal transceiver antenna and an operation frequency of the radio frequency transceiver antenna are same. The super-capacitor (5) is configured to store electric energy converted by the solar panel (1) and the radio frequency collection antenna and provide the electric energy to the printed circuit board (3) and the electronic paper display screen (2). With this application, energies (such as daylight, radio frequency signals, etc.) contained in the surrounding environment can be converted into electrical energy to power the electronic price tag, which meets application requirements of the electronic price tag in a variety of scenes, reduces maintenance frequency of the electronic price tag, and reduces pollution to the environment.

    A WRITABLE-ERASABLE MEDIUM AND A HAND HOLDABLE WRITING DEVICE
    6.
    发明公开
    A WRITABLE-ERASABLE MEDIUM AND A HAND HOLDABLE WRITING DEVICE 审中-公开

    公开(公告)号：EP4155883A1

    公开(公告)日：2023-03-29

    申请号：EP21198934.8

    申请日：2021-09-24

    申请人： Freshape SA

    发明人： KUNG, Yen-Cheng ,  LIU, Yuhang

    IPC分类号： G06F3/03 ,  G02F1/166 ,  G06F3/0354 ,  G09F9/37 ,  G09G3/34

    摘要： The present invention concerns a hand holdable writing tool for generating a visual representation on a writable-erasable, passive medium. The invention also provides the assembly of the writing tool and the medium. The writing tool comprises a sensor capable of sensing non-visible light, and a data processing entity, configured for activating and/or disactivating individual inducer entities of the tool, thereby inducing image elements of the medium to generate said visual representation.

    LIGHT STIPPLING DISPLAY DEVICE
    7.
    发明公开
    LIGHT STIPPLING DISPLAY DEVICE 审中-公开

    公开(公告)号：EP3944222A1

    公开(公告)日：2022-01-26

    申请号：EP20777491.0

    申请日：2020-03-18

    申请人： Hirayama, Shozo

    发明人： Hirayama, Shozo

    IPC分类号： G09F9/30 ,  G09F9/37 ,  G09F13/04

    摘要： A display device according to the present invention is a light stippling display device (10) that performs light stippling. In the device, a plurality of hole portions (16) are formed on a display plate portion (11) including a magnetized sheet (11a) which is magnetized on both sides, and the hole portion is opened and closed by a light shielding body (14) made of a magnetic ball. Thereby, the position of the light shielding body is switched between a light transmitting state and a light shielding state. The light shielding body has directivity for a center of the hole portion in the display plate portion which is magnetized on both sides in a case where the light shielding body is switched to the light shielding state. Therefore, the reliability of display can be improved, and the operability can be improved.