Filter modules, color filters, image sensors and imaging devices

    公开(公告)号:US11846864B2

    公开(公告)日:2023-12-19

    申请号:US17471300

    申请日:2021-09-10

    CPC classification number: G02F1/213 G02F1/0147 G02F1/092 G02F1/13439 H04N25/11

    Abstract: The present application relates to a filter module, a color filter, an image sensor and an imaging device. The filter module includes: a plurality of color filters and a control component. Each of the color filters includes: a first substrate; a metasurface structure located on the first substrate and including a plurality of microstructures periodically arranged; a dielectric layer located on a side of the metasurface structure away from the first substrate and covering the metasurface structure, wherein a refractive index of the dielectric layer is different from a refractive index of the metasurface structure; a second substrate located on a side of the dielectric layer away from the first substrate. The control component is configured to adjust the refractive index of the dielectric layer so as to adjust wavelengths of visible light passing through the color filter.

    TRANSPARENT DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME AND BACKLIGHT MODULE

    公开(公告)号:US20220146880A1

    公开(公告)日:2022-05-12

    申请号:US17304518

    申请日:2021-06-22

    Abstract: A transparent display device and a backlight module are provided. The transparent display device includes: a scattered display panel including a display side; a first base substrate on a side of the scattered display panel facing away from the display side; a light source on a side of the first base substrate; and a dot-array structure between the scattered display panel and the first base substrate. The first base substrate includes a light incident surface and a light emitting surface. The dot-array structure includes a plurality of protrusions, and orthographic projections of the plurality of protrusions on the light emitting surface are distributed in an array. An orthographic projection of each protrusion on a first plane is in an inverted trapezoidal shape in a direction from the first base substrate to the scattered display panel.

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