OPTICAL FILM FOR MINI LED OR MICRO LED BACKLIGHT UNIT

    公开(公告)号:US20210124217A1

    公开(公告)日:2021-04-29

    申请号:US17131213

    申请日:2020-12-22

    Applicant: LMS Co., Ltd.

    Abstract: An optical film for transmitting light emitted from a mini or micro light-emitting diode comprises a first diffusion sheet allowing the light to be emitted at one surface thereof, having, on the one surface thereof, a bead diffusion layer, which includes beads for the diffusion of the light, and having, on the other surface thereof, a pattern diffusion layer which includes a pattern for the diffusion of the light; and a first prism sheet having a plurality of prisms arranged on one surface thereof in a predetermined direction in order to concentrate the light that has passed through the first diffusion sheet, wherein the bead diffusion layer and the pattern diffusion layer of the first diffusion sheet can be formed such that a first diffusion rate of the light on the one surface of the first diffusion sheet is higher than a second diffusion rate of the light on the other surface of the first diffusion sheet.

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