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    Privacy films for curved displays
    141.
    发明授权
    Privacy films for curved displays 有权

    公开(公告)号：US10983256B2

    公开(公告)日：2021-04-20

    申请号：US16421838

    申请日：2019-05-24

    Applicant: Apple Inc.

    Inventor： Yi Huang ,  Steven M. Scardato ,  ByoungSuk Kim ,  Jun Qi ,  Victor H Yin ,  Wenyong Zhu

    IPC: B32B3/00 ,  G02B5/00 ,  H01L51/52 ,  G02F1/1335 ,  B32B27/08 ,  B32B27/36 ,  H01L27/32 ,  F21V8/00 ,  G02B5/04 ,  G02F1/1333

    Abstract: A privacy film may have a light-blocking layer that is interposed between first and second transparent substrates. The light-blocking layer may have a plurality of opaque portions and a plurality of transparent portions. The opaque portions may be shaped to ensure light from the display is directed only to the primary viewer of the display. Each opaque portion of the light-blocking layer may extend along a respective longitudinal axis between the first and second transparent substrates. Privacy films used to cover curved displays may have opaque portions that extend along longitudinal axes that have different angles relative to the transparent substrates. Opaque portions in the edge of the privacy film may have longitudinal axes that are at non-perpendicular angles with respect to the transparent substrates. A privacy film for a curved display may also include a light-redirecting layer such as a prism layer or a liquid crystal layer.

    Optical Film Arrangements for Electronic Device Displays
    142.
    发明申请
    Optical Film Arrangements for Electronic Device Displays 有权

    公开(公告)号：US20210072556A1

    公开(公告)日：2021-03-11

    申请号：US17003816

    申请日：2020-08-26

    Applicant: Apple Inc.

    Inventor： ByoungSuk Kim ,  Yi Huang ,  Jun Qi ,  Victor H. Yin ,  Seung Wook Kim ,  Nicolas V. Scapel ,  Yi-Pai Huang

    IPC: G02B30/29 ,  H04N13/305 ,  H04N13/383

    Abstract: A lenticular display may be formed with convex curvature. The lenticular display may have a lenticular lens film with lenticular lenses that extend across the length of the display. The lenticular lenses may be configured to enable stereoscopic viewing of the display. To enable more curvature in the display while ensuring satisfactory stereoscopic display performance, the display may have stereoscopic zones and non-stereoscopic zones. A central stereoscopic zone may be interposed between first and second non-stereoscopic zones. The non-stereoscopic zones may have more curvature than the stereoscopic zone. To prevent crosstalk within the lenticular display, a louver film may be incorporated into the display. The louver film may have a plurality of transparent portions separated by opaque walls. The opaque walls may control the emission angle of light from the display, reducing crosstalk. The louver film may be interposed between the lenticular lens film and the display panel.

    Displays With Polarizer Windows and Opaque Masking Layers for Electronic Devices
    145.
    发明申请
    Displays With Polarizer Windows and Opaque Masking Layers for Electronic Devices 审中-公开

    公开(公告)号：US20200159284A1

    公开(公告)日：2020-05-21

    申请号：US16749056

    申请日：2020-01-22

    Applicant: Apple Inc.

    Inventor： Dinesh C. Mathew ,  Keith J. Hendren ,  Jun Qi ,  Victor H. Yin ,  Thomas Wilson, JR. ,  Adam T. Garelli

    IPC: G06F1/16 ,  H04M1/02 ,  G02F1/1335

    Abstract: An electronic device may have a display. Inactive portions of the display such as peripheral portions of the display may be masked using an opaque masking layer. An opening may be provided in the opaque masking layer to allow light to pass. For example, a logo may be viewed through an opening in the opaque masking layer and a camera may receive light through an opening in the opaque masking layer. The display may include upper and lower polarizers, a color filter layer, and a thin-film transistor layer. The opaque masking layer may be formed on the upper polarizer, may be interposed between the upper polarizer and the color filter layer, or may be interposed between the color filter layer and the thin-film transistor layer. The upper polarizer may have unpolarized windows for cameras, logos, or other internal structures.

    Displays with Direct-lit Backlight Units and Light Spreading Structures
    147.
    发明申请
    Displays with Direct-lit Backlight Units and Light Spreading Structures 审中-公开

    公开(公告)号：US20190285941A1

    公开(公告)日：2019-09-19

    申请号：US16294715

    申请日：2019-03-06

    Applicant: Apple Inc.

    Inventor： Rong Liu ,  Ling Han ,  Daming Xu ,  Janos C. Keresztes ,  Joshua A. Spechler ,  Jun Qi ,  Victor H. Yin ,  Yu P. Sun ,  Ziruo Hong ,  Wei Lv ,  Suraj P. Gorkhali ,  Mookyung Son

    IPC: G02F1/1335 ,  F21K9/64

    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 backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.

    Backlight Units With Support Posts and Cavity Height Monitoring
    148.
    发明申请
    Backlight Units With Support Posts and Cavity Height Monitoring 审中-公开

    公开(公告)号：US20190265551A1

    公开(公告)日：2019-08-29

    申请号：US16409688

    申请日：2019-05-10

    Applicant: Apple Inc.

    Inventor： Rong Liu ,  Yu P. Sun ,  Erik A. Zweigle ,  Jun Qi ,  Victor H. Yin ,  Ziruo Hong ,  Sungwon Bae

    IPC: G02F1/1335 ,  G09G3/36 ,  F21V3/00 ,  F21K9/68 ,  G09G3/34 ,  F21K9/64

    Abstract: An electronic device may have a display with a backlight. The backlight provides backlight illumination for an array of pixels that is displaying images. The backlight may include an array of cells. Each cell may contain a light source with one or more light-emitting diodes and a cavity reflector that reflects light from the light source outwardly through a diffuser for use in forming the backlight illumination. The light sources may be mounted to a printed circuit. Support posts on the printed circuit may be used to maintain the diffuser at a fixed distance from the printed circuit. Sensors on the printed circuit may be used to measure separation distances between the printed circuit and diffuser. Adjustments to pixel gain profiles can be made based on the measured separation distances.

    Electronic Device Display With Switchable Film Structures
    149.
    发明申请
    Electronic Device Display With Switchable Film Structures 审中-公开

    公开(公告)号：US20190179074A1

    公开(公告)日：2019-06-13

    申请号：US16280925

    申请日：2019-02-20

    Applicant: Apple Inc.

    Inventor： Hyungryul J. Choi ,  Zhibing Ge ,  Cheng Chen ,  Hossein Nemati ,  Wei Chen ,  Jun Qi ,  Khadijeh Bayat ,  David A. Doyle ,  John Z. Zhong

    IPC: F21V8/00 ,  G02F1/139 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13 ,  G02F1/1333

    Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The display may be operated in at least a normal viewing mode, a privacy mode, an outdoor viewing mode, and a power saving mode. The different view modes may exhibit different viewing angles. In one configuration, the display may include a backlight unit that generates a collimated light source and that includes a switchable diffuser film for selectively scattering the collimated light source depending on the current viewing mode of the display. In another configuration, the display may include a backlight unit that generates a scattered light source that includes a switchable microarray structure such as a switchable mirror structure or a tunable microlens array for selectively collimating the scattered light source depending on the current viewing mode.

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