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    Display Systems Having Vertical Light-Emitting Diodes
    41.
    发明公开
    Display Systems Having Vertical Light-Emitting Diodes 审中-公开

    公开(公告)号：US20240170625A1

    公开(公告)日：2024-05-23

    申请号：US18551985

    申请日：2022-03-07

    Applicant: Apple Inc.

    Inventor： Saijin Liu ,  Tongbi T Jiang ,  Rong Liu

    IPC: H01L33/58 ,  H01L25/16

    CPC classification number: H01L33/58 ,  H01L25/167

    Abstract: An electronic device may include a display having an array of light-emitting diodes mounted to a driver die with driver circuitry for controlling the light-emitting diodes. The diodes may include contact pads. Contact pads for one of the diode terminals (e.g., the anodes or the cathodes) may be individually addressable, whereas the other diode terminals may share a common contact pad. The individually addressable contact pads and the common contact pad may be vertically stacked to improve thermal dissipation. The common contact pad may be interposed between the driver die and the individually addressable contact pads. Alternatively, the individually addressable contact pads may be interposed between the driver die and the common contact pad. Each LED array may have a dedicated driver die or one driver die may be shared between multiple LED arrays. A single LED array may include LEDs of multiple different colors.

    Adaptive exterior display
    42.
    发明授权
    Adaptive exterior display 有权

    公开(公告)号：US11934063B2

    公开(公告)日：2024-03-19

    申请号：US18083314

    申请日：2022-12-16

    Applicant: Apple Inc.

    Inventor： Tao Zhan ,  Yu P Sun ,  Rong Liu ,  Yong Seok Choi ,  Joshua A Spechler ,  Jun Qi ,  Victor H Yin

    IPC: G02F1/1335 ,  G02F1/133 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/157

    CPC classification number: G02F1/133504 ,  G02F1/13312 ,  G02F1/1334 ,  G02F1/13718 ,  G02F1/157

    Abstract: A system may have a display that includes a plurality of light sources such as light-emitting diodes. The display may be an exterior display that is routinely operated in daytime conditions where ambient light levels are very high. To increase contrast in an exterior display, the display may include a sunlight blocking element. A static sunlight blocking element may include a louver film with asymmetric light blocking portions. The system may include an ambient light sensor that is configured to determine ambient light levels. Based on the detected ambient light level, control circuitry in the system may adjust one or more adjustable components in the display. The display may include an adjustable diffuser that has at least two states with different haze levels. The display may include an adjustable tint layer that has at least two states with different transmission levels.

    Display Systems with Light-Emitting Diodes
    44.
    发明公开
    Display Systems with Light-Emitting Diodes 审中-公开

    公开(公告)号：US20230361154A1

    公开(公告)日：2023-11-09

    申请号：US18180763

    申请日：2023-03-08

    Applicant: Apple Inc.

    Inventor： Ziruo Hong ,  Ganghun Kim ,  Jun Qi ,  Rong Liu ,  Saijin Liu ,  Tongbi T Jiang ,  Victor H Yin

    IPC: H01L27/15

    CPC classification number: H01L27/156

    Abstract: An electronic device may have one or more displays that produce images for a user. The display may include an array of light-emitting diodes. Each light-emitting diode in the array of light-emitting diodes may include a plurality of vias. The vias may be arranged in an array of rows and columns. The light-emitting diodes in the array may share a common cathode. The common cathode may include a conductive layer formed from a reflective material. The conductive layer may be formed in a grid that defines a plurality of openings for the light-emitting diodes or may be formed around the periphery of the array. The array may include light-emitting diodes of two different colors in a head-to-tail arrangement, connected in series, or that share a common cathode. The array may include light-emitting diodes of three different colors that are vertically stacked.

    Adaptive Exterior Display
    45.
    发明公开
    Adaptive Exterior Display 审中-公开

    公开(公告)号：US20230251518A1

    公开(公告)日：2023-08-10

    申请号：US18083314

    申请日：2022-12-16

    Applicant: Apple Inc.

    Inventor： Tao Zhan ,  Yu P Sun ,  Rong Liu ,  Yong Seok Choi ,  Joshua A Spechler ,  Jun Qi ,  Victor H Yin

    IPC: G02F1/1335 ,  G02F1/1334 ,  G02F1/133 ,  G02F1/137 ,  G02F1/157

    CPC classification number: G02F1/133504 ,  G02F1/1334 ,  G02F1/13312 ,  G02F1/13718 ,  G02F1/157

    Abstract: A system may have a display that includes a plurality of light sources such as light-emitting diodes. The display may be an exterior display that is routinely operated in daytime conditions where ambient light levels are very high. To increase contrast in an exterior display, the display may include a sunlight blocking element. A static sunlight blocking element may include a louver film with asymmetric light blocking portions. The system may include an ambient light sensor that is configured to determine ambient light levels. Based on the detected ambient light level, control circuitry in the system may adjust one or more adjustable components in the display. The display may include an adjustable diffuser that has at least two states with different haze levels. The display may include an adjustable tint layer that has at least two states with different transmission levels.

    Display with a time-sequential directional backlight
    46.
    发明授权
    Display with a time-sequential directional backlight 有权

    公开(公告)号：US11619830B1

    公开(公告)日：2023-04-04

    申请号：US17705073

    申请日：2022-03-25

    Applicant: Apple Inc.

    Inventor： Hao Chen ,  Juan He ,  Rong Liu ,  ByoungSuk Kim ,  Jun Qi ,  Yi Huang

    IPC: G02B30/33 ,  G02F1/137 ,  G02F1/13357 ,  G02F1/1335 ,  G02B30/27

    Abstract: To enable a display to display different content to different viewers, a display may include a time-sequential directional backlight unit. The backlight unit may emit light in different directions in different configurations. In a first state, the backlight unit emits light at maximum brightness in a first direction. In a second state, the backlight unit emits light at maximum brightness in a second direction that is different than the first direction. The backlight unit may repeatedly and rapidly switch between the different states. The first direction may be towards a first viewer whereas the second direction may be towards a second, different viewer. Therefore, each viewer receives backlight in one of the configurations and does not receive backlight in the other configuration. In synchronization with the backlight unit, the liquid crystal display panel may repeatedly switch between displaying content for the first viewer and displaying content for the second viewer.

    Backlight units with support posts and cavity height monitoring
    47.
    发明授权
    Backlight units with support posts and cavity height monitoring 有权

    公开(公告)号：US10969628B1

    公开(公告)日：2021-04-06

    申请号：US15988978

    申请日：2018-05-24

    Applicant: Apple Inc.

    Inventor： Erik A. Zweigle ,  Yu P. Sun ,  Ziruo Hong ,  Victor H. Yin ,  Eric L. Benson ,  Rong Liu ,  Mingxia Gu ,  Robert J. Durand ,  Wr Jamarulan Wr Ramli

    IPC: G02F1/13357 ,  G02F1/1333 ,  G02F1/1335

    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. The support posts may have opposing first and second ends. The first ends may be attached to the diffuser with fixed connections such as adhesive connections. The second ends may be attached to the printed circuit using floating connections.

    Displays with Direct-lit Backlight Units and Light Spreading Structures
    50.
    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.

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