DISPLAY DEVICE
    4.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号:US20240349572A1

    公开(公告)日:2024-10-17

    申请号:US18515966

    申请日:2023-11-21

    摘要: A display device includes: a substrate on which a light emitting area and a non-light emitting area adjacent to the light emitting area are defined, a plurality of light control patterns disposed on the substrate and spaced apart from each other, a common electrode disposed on the plurality of light control patterns, a light blocking layer disposed on the common electrode and overlapping the non-light emitting area, a solvent layer disposed between the common electrode and the light blocking layer, a plurality of electrophoretic particles dispersed in the solvent layer and movable in a horizontal direction of the substrate, and a first control electrode disposed between the common electrode and the light blocking layer, and overlapping the non-light emitting area.

    Optical element
    5.
    发明授权

    公开(公告)号:US12111523B1

    公开(公告)日:2024-10-08

    申请号:US18293853

    申请日:2022-08-01

    申请人: SIOPTICA GMBH

    摘要: An optical element including: a substrate with first and second large surfaces and a second; a plurality of opaque surfaces near or on the first large surface; in a first alternative, a plurality of surfaces near or on the second large surface which are switchable between an opaque state and a transparent state, or, in a second alternative, a plurality of chambers in the substrate which are filled with a fluid, wherein the fluid contains up to 30 volume percent of electrophoretically movable particles which absorb light and can be localized in two different states in the chambers by a variable electromagnetic field so that, in a first state the optical element limits the propagation directions of light which impinges on the light entry surface and in a second state, the optical element does not limit the propagation directions of light impinging on the light entry surface.

    Piezo-electrophoretic films and displays, and methods for manufacturing the same

    公开(公告)号:US20240329485A1

    公开(公告)日:2024-10-03

    申请号:US18680895

    申请日:2024-05-31

    申请人: E Ink Corporation

    摘要: Low voltage piezo-electrophoretic films and displays including low profile piezo-electrophoretic films. Piezo-electrophoretic displays having a layer of electrophoretic material, a first conductive layer, and a piezoelectric material positioned between the layer of electrophoretic material and the first conductive layer, where the piezoelectric material overlaps with a portion of the layer of electrophoretic material, and a portion of the first conductive layer overlaps with the rest of the electrophoretic material. Such films and displays exhibit a high contrast ratio and are useful as security markers, authentication films, or sensors. The films and displays are generally flexible. Some are less than 100 μm in thickness. Some are less than 50 μm in thickness. Piezo-electrophoretic films and displays formed according to the technology described herein do not require an external power source to change optical state.