DISPLAYS WITH DIRECT-LIT BACKLIGHT UNITS
    1.
    发明申请

    公开(公告)号:WO2018160304A1

    公开(公告)日:2018-09-07

    申请号:PCT/US2018/015776

    申请日:2018-01-29

    Applicant: APPLE INC.

    Abstract: An array of pixels in a display may be illuminated by a backlight having an array (36) of light-emitting diodes (38) in an array of respective cells. A reflector (68) is used to reflect light from the light-emitting diodes (38) through the array of pixels. Within the cells, the reflector (68) has cross-sectional profiles that help distribute light (80) emitted from the light-emitting diodes (38) toward edges of the cells. A light diffuser layer (34) for the backlight may have a partially reflective layer (96) such as a thin-film interference filter with an angularly dependent transmission. Within each cell, the reflector (68) may have cross-sectional profiles with portions that are parabolic or elliptical.

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