Displays with direct-lit backlight units

    公开(公告)号:US11592706B2

    公开(公告)日:2023-02-28

    申请号:US17409467

    申请日:2021-08-23

    Applicant: Apple Inc.

    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.

    Displays with Direct-lit Backlight Units

    公开(公告)号:US20220334432A1

    公开(公告)日:2022-10-20

    申请号:US17409467

    申请日:2021-08-23

    Applicant: Apple Inc.

    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.

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