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    Electronic device display with a backlight having light-emitting diodes and driver integrated circuits in an active area
    2.
    发明授权
    Electronic device display with a backlight having light-emitting diodes and driver integrated circuits in an active area 有权

    公开(公告)号：US11428987B2

    公开(公告)日：2022-08-30

    申请号：US17203340

    申请日：2021-03-16

    Applicant: Apple Inc.

    Inventor： Mingxia Gu ,  Jun Qi ,  Yanming Li ,  Jingdong Chen

    IPC: G02F1/1335 ,  G02F1/13357 ,  H05B47/16 ,  H05B47/105 ,  H01L25/16 ,  G09G3/34

    Abstract: A pixel array may be illuminated with backlight illumination from a backlight. The backlight may include a two-dimensional array of light-emitting diodes, with each light-emitting diode being placed in a respective cell. Different light-emitting diodes may have unique brightness magnitudes based on the content of the given display frame. Driver integrated circuits may control one or more associated light-emitting diodes to have a desired brightness level. The driver integrated circuits may be formed in an active area of the backlight. The driver integrated circuits may be arranged in groups that are daisy chained together. A digital signal (that includes information such as addressing information) may be propagated through the group of driver integrated circuits. To manage thermal performance of the backlight, the backlight may include a thermally conductive layer and/or a heat sink structure. To increase the efficiency of the backlight, the backlight may include one or more reflective layers.

    Displays with Direct-lit Backlight Units
    4.
    发明申请
    Displays with Direct-lit Backlight Units 审中-公开

    公开(公告)号：US20190265548A1

    公开(公告)日：2019-08-29

    申请号：US16409567

    申请日：2019-05-10

    Applicant: Apple Inc.

    Inventor： Rong Liu ,  Yu P. Sun ,  Abdeslam Hafidi ,  Erik A. Zweigle ,  Jun Qi ,  Mingxia Gu ,  Victor H. Yin ,  Xiangtong Li ,  Yanming Li ,  Yi Huang ,  Ziruo Hong

    IPC: G02F1/1335

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

    Display Emulation and Calibration
    7.
    发明申请
    Display Emulation and Calibration 审中-公开

    公开(公告)号：US20200372876A1

    公开(公告)日：2020-11-26

    申请号：US16781523

    申请日：2020-02-04

    Applicant: Apple Inc.

    Inventor： Kevin W. Sliech ,  Lu Zhang ,  Mingxia Gu ,  Robert L. Ridenour ,  Yanming Li

    IPC: G09G5/04 ,  G09G3/34

    Abstract: An electronic device includes a display having an emulation component and a separate calibration component. The emulation component may provide a user of the device with a list of available emulation presets at least some of which is common across a large batch of displays. The calibration component may include at least one factory calibration setting that may be shared among one or more of the emulation presets. The user may optionally add to the list of emulation presets by filling up empty emulation slots in the emulation component. The user may also be given the option to recalibrate the display or to add custom calibration datasets using calibration targets different than factory targets. The custom calibration datasets may be optimized for one or more of the emulation presets. Thus, when the user selects a particular emulation preset, the display may automatically select the desired calibration dataset for optimal performance.

    Display having backlight with narrowband collimated light sources
    9.
    发明授权
    Display having backlight with narrowband collimated light sources 有权

    公开(公告)号：US09719639B2

    公开(公告)日：2017-08-01

    申请号：US14564456

    申请日：2014-12-09

    Applicant: Apple Inc.

    Inventor： Mingxia Gu ,  Chenhua You ,  Jun Qi ,  Yanming Li ,  Young Cheol Yang ,  Jean-Jacques Drolet ,  Wei Chen ,  Victor H. Yin

    IPC: G02F1/1335 ,  F21K9/60

    CPC classification number: F21K9/60 ,  G02F1/133617

    Abstract: A display has an array of display pixels formed from display layers such as one or more polarizer layers, a substrate on which an array of display pixel elements such as color filter elements and downconverter elements are formed, a liquid crystal layer, and a thin-film transistor layer that includes display pixel electrodes and display pixel thin-film transistors for driving control signals onto the display pixel electrodes to modulate light passing through the display pixels. A light source such as one or more laser diodes or light-emitting diodes may be used to generate light for the display. The light may be launched into the edge of a polymer layer or other light guide plate structure. A light guide plate may include phase-matched structures such as holographically recorded gratings or photonic lattices that direct the light upwards through the array of display pixels.

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