ELECTROPHORETIC FLUID, IMAGE DISPLAY DEVICE, AND IMAGE DISPLAY DRIVING METHOD

    公开(公告)号:EP3995886A1

    公开(公告)日:2022-05-11

    申请号:EP19937240.0

    申请日:2019-07-08

    摘要: The present invention relates to the field of electrophoretic display apparatuses, and in particular, to an electrophoretic liquid, an image display device and an image display driving method. The electrophoretic liquid includes a first type of pigment particles, a second type of pigment particles and a third type of pigment particles. The first type of pigment particles, the second type of pigment particles and the third type of pigment particles are the same in particle size. The second type of pigment particles has a charge polarity the same as that of the third type of pigment particles, and the first type of pigment particles has a charge polarity opposite to that of the third type of pigment particles. The mass of the second type of pigment particles is 3-6 times that of the third type of pigment particles. The image display device includes a plurality of display units. Each display unit includes an electrophoresis chamber, and each electrophoresis chamber is filled with the electrophoretic liquid according to the first aspect of the present invention. The electrophoretic liquid, the image display device and the image display driving method provided in the present invention can enable control on upward and downward movements of particles by applying different positive and negative voltages, such that different colors can be presented.

    METHOD FOR POSITIONING AND REFRESHING ELECTRONIC PRICE LABEL BY MEANS OF GRAPHIC CODE

    公开(公告)号:EP3483777A1

    公开(公告)日:2019-05-15

    申请号:EP16876968.5

    申请日:2016-08-02

    发明人: BAO, Jin

    IPC分类号: G06K7/14

    摘要: The present invention discloses a method for updating the position of electronic price tag by graphic code, including following steps: step 1, placing a plurality kinds of commodities on a commodity shelf, mounting an electronic price tag screen on the commodity shelf and below the commodities; step 2, displaying at least n position graphic codes with an even interval on the electronic price tag screen; step 3, carrying out a first scan by a supermarket tally clerk to send the commodity information to a server; step 4, carrying out a second scan by the supermarket tally clerk to check a position of the commodity; step 5, sending a plurality of size graphic codes with different size information to a position where the position graphic code in step 4 locates; step 6, selecting a size graphic code with a proper size for a third scan by the supermarket tally clerk; step 7, generating a commodity tag by the server. In the present invention, the amount of the electronic price tags is reduced, the working time is saved, the cost of electronic price tags is greatly reduced, and the human resources of the supermarket is also saved.

    DISPLAY PLASMA MODULE HAVING DOUBLE-LAYER MICRO-STRUCTURE, AND MANUFACTURING METHOD THEREFOR

    公开(公告)号:EP3657242A1

    公开(公告)日:2020-05-27

    申请号:EP18922081.7

    申请日:2018-10-09

    IPC分类号: G02F1/167

    摘要: The present disclosure belongs to the technical field of electronic display and relates to a display plasma module with a double-layer microstructure. The display plasma module with the double-layer microstructure includes a pixel electrode and a transparent electrode located above the pixel electrode. A display plasma and a liner frame surrounding the display plasma are arranged between the pixel electrode and the transparent electrode. A plasma barrier array used for uniformly dispersing and stabilizing the display plasma is arranged on the pixel electrode and/or the transparent electrode, and a spacer particle layer is adsorbed on the plasma barrier array. The display plasma module of the present disclosure directly uses the display plasma to replace the micro-cup structure or the microcapsule structure in the prior art, and is provided with the plasma barrier array and the spacer particle layer used for uniformly dispersing, stabilizing and isolating the display plasma, which has a function of supporting the whole display plasma module and controlling the thickness of the display plasma. This process effectively prevents the display plasma from flowing in disorder, and ensures the perpendicularity of an electric field direction between the pixel electrode and the transparent electrode.

    SNAP-FIT-TYPE PLASMA DISPLAY MODULE AND PLASMA DISPLAY SCREEN

    公开(公告)号:EP4394495A1

    公开(公告)日:2024-07-03

    申请号:EP22936934.3

    申请日:2022-04-15

    摘要: A snap-fit plasma display module includes a first substrate (110) and a second substrate (210) arranged opposite thereto. A plasma display cavity is formed between the first substrate (110) and the second substrate (210), and the plasma display cavity is filled with plasma particles (320). A surface of the first substrate (110) is provided with a filter layer (120), and a surface of the second substrate (210) facing the first substrate (110) is provided with a pixel electrode layer (220). A plasma isolation structure (230) extending toward the first substrate (110) is arranged on the pixel electrode layer (220), a surface of the filter layer (120) facing the second substrate (210) is provided with a snap-fit structure (160), a shape of the snap-fit structure (160) is adapted to a shape of the plasma isolation structure (230) to fix the first substrate (110) and the second substrate (210), and each of the surface of the filter layer (120) facing the second substrate (210) and a surface of the snap-fit structure (160) facing the second substrate (210) is provided with a conductive dielectric layer (140). The plasma isolation structure (230) is wrapped by the snap-fit structure (160), which can increase an overall structural strength of the display and improve overall pressure resistance.

    PLASMA DISPLAY SCREEN
    5.
    发明公开

    公开(公告)号:EP4235290A1

    公开(公告)日:2023-08-30

    申请号:EP21947367.5

    申请日:2021-12-29

    IPC分类号: G02F1/1675

    摘要: The present disclosure relates to a display electronic slurry (DES) panel, including an upper substrate, a lower substrate, and a DES cavity between the upper substrate and the lower substrate. A filter layer is disposed on a surface of the upper substrate facing the lower substrate, and a pixel electrode layer is disposed on a surface of the lower substrate facing the upper substrate. The DES cavity is provided with a support structure; an indium tin oxide (ITO) film is disposed between the support structure and the filter layer. A lower surface of the ITO film is in contact with an upper surface of the support structure, and a lower surface of the support structure is in contact with an upper surface of the pixel electrode layer. The filter layer includes a plurality of color filters, an optical coating (OC) layer is disposed between gaps of the color filters, and the filter layer is attached to an upper surface of the ITO film by using an optically clear adhesive (OCA) layer. In the DES panel in the present disclosure, one OC layer is coated between the gaps of the color filters to achieve a smooth surface of the upper substrate, and the ITO film is attached by using OCA to achieve a uniform electric field between the upper and lower substrates of the DES panel, improve a refresh life and a contrast of the DES panel, reduce diffraction, increase color saturation of the DES panel, and improve pressure resistance of the DES panel.