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    Light Diffusers for Backlit Displays
    203.
    发明申请
    Light Diffusers for Backlit Displays 审中-公开

    公开(公告)号：US20180059482A1

    公开(公告)日：2018-03-01

    申请号：US15356084

    申请日：2016-11-18

    Applicant: Apple Inc.

    Inventor： Xiangtong Li ,  Jun Qi ,  Mingxia Gu ,  Rong Liu ,  Victor H. Yin ,  Yu P. Sun

    IPC: G02F1/1335 ,  F21V3/04 ,  F21V9/16 ,  F21V9/00 ,  F21V7/00 ,  F21V13/12

    CPC classification number: G02F1/133606 ,  F21V3/10 ,  F21V9/30 ,  G02F1/133509 ,  G02F1/133603 ,  G02F1/133605 ,  G02F2001/133614 ,  G02F2203/055

    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 light-emitting diode cells. A cavity reflector in each cell may help distribute blue light emitted from the light-emitting diode of that cell toward edges of the cell. Optical films in the backlight may include a photoluminescent layer such as a phosphor layer that converts blue light from the light-emitting diode array into white light and may include a dichroic filter for reflecting white light away from the diode array towards the pixel array. A light diffuser layer for the backlight may have printed white ink pads, recesses filled with a high index of refraction material, protrusions for light scattering, light-scattering particles, thin-film interference filters, partially reflective mirrors, and other structures for diffusing the light from the light-emitting diodes.

    Display Backlights with Reduced Mixing Distances
    204.
    发明申请
    Display Backlights with Reduced Mixing Distances 审中-公开

    公开(公告)号：US20170371086A1

    公开(公告)日：2017-12-28

    申请号：US15260993

    申请日：2016-09-09

    Applicant: Apple Inc.

    Inventor： Jun Qi ,  Rong Liu ,  Victor H. Yin ,  Shenglin Ye ,  Sudirukkuge Tharanga Jinasundera ,  Nathan K. Gupta

    IPC: F21V8/00

    CPC classification number: G02B6/0016 ,  G02B6/00 ,  G02B6/0065 ,  G02B6/0068 ,  G02B6/0073

    Abstract: A display may have a backlight with a row of light-emitting diodes that emit light into an edge surface of a light guide layer. The light guide layer may have opposing planar surfaces. Light-scattering structures such as light-scattering holes that extend between the planar surfaces may be used to scatter rays of light by refraction and/or diffraction and can thereby homogenize light from the light-emitting diodes. The homogenized light may then be extracted from the light guide layer and may serve as backlight illumination for an array of pixels such as an array of liquid crystal display pixels. Light-scattering structures such as grooves, pits, bumps, and other structures for scattering light from the light-emitting diodes may be formed on the edge surface of the light guide layer to enhance light mixing.

    Displays With Multimode Backlight Units
    207.
    发明申请
    Displays With Multimode Backlight Units 审中-公开
    显示多模背光单元

    公开(公告)号：US20170010407A1

    公开(公告)日：2017-01-12

    申请号：US14878944

    申请日：2015-10-08

    Applicant: Apple Inc.

    Inventor： Yi Huang ,  Jun Qi ,  Rong Liu ,  Victor H. Yin ,  Xinyu Zhu

    IPC: F21V8/00 ,  H05B37/02

    CPC classification number: G02B6/0068 ,  G02B6/0025 ,  G02B6/0046 ,  G02B6/0073 ,  G02B6/0076 ,  H05B37/0218 ,  Y02B20/46

    Abstract: A display may have a backlight unit that provides backlight illumination. The backlight unit may include a light guide that distributes light through the display. The light guide may include opposing first and second edges. A first light source such as a first row of light-emitting diodes may emit light into the first edge and a second light source such as a second row of light-emitting diodes may emit light into the second edge. In a normal viewing mode, both light sources are active and backlight illumination is provided over a normal range of angles. In a restricted angle-of-view mode, only one light source is active and backlight is emitted in a more concentrated fashion over a restricted range of angles. In a high luminance restricted angle-of-view mode, the active light source is driven at an elevated level.

    Abstract translation: 显示器可以具有提供背光照明的背光单元。 背光单元可以包括通过显示器分配光的光导。 光导可以包括相对的第一和第二边缘。 诸如第一排发光二极管的第一光源可以将光发射到第一边缘中，并且诸如第二排发光二极管的第二光源可以将光发射到第二边缘。 在正常观看模式下，两个光源都是有效的，并且在正常的角度范围内提供背光照明。 在受限制的视角模式中，只有一个光源处于活动状态，并且在限制的角度范围内以更集中的方式发射背光。 在高亮度限制视角模式中，主动光源以升高的水平被驱动。

    Electronic Device Display With Switchable Film Structures
    209.
    发明申请
    Electronic Device Display With Switchable Film Structures 审中-公开
    具有可切换薄膜结构的电子设备显示

    公开(公告)号：US20160356943A1

    公开(公告)日：2016-12-08

    申请号：US15051047

    申请日：2016-02-23

    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 ,  G02F1/137 ,  G02F1/133 ,  G02F1/1334 ,  G02F1/1368 ,  G02F1/1335

    CPC classification number: G02B6/0051 ,  G02B6/005 ,  G02F1/13338 ,  G02F1/1334 ,  G02F1/133526 ,  G02F1/133528 ,  G02F1/1336 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1393 ,  G02F2001/133626 ,  G02F2001/13793 ,  G02F2001/294 ,  G02F2203/50

    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.

    Abstract translation: 电子设备可以产生要显示在显示器上的内容。 显示器可以具有用于显示内容的图像帧的液晶显示像素阵列。 显示器可以至少在正常观看模式，隐私模式，室外观看模式和省电模式下操作。 不同的视图模式可以呈现不同的视角。 在一种配置中，显示器可以包括产生准直光源的背光单元，并且包括可切换漫射膜，用于根据显示器的当前观看模式选择性地散射准直光源。 在另一种配置中，显示器可以包括产生散射光源的背光单元，该散射光源包括可切换的微阵列结构，例如可切换镜结构或可调谐微透镜阵列，用于根据当前观看模式选择性地准直散射光源。

    Display Backlight With Adhesive Attachment Layers
    210.
    发明申请
    Display Backlight With Adhesive Attachment Layers 有权
    显示背光与粘合剂附件层

    公开(公告)号：US20160077276A1

    公开(公告)日：2016-03-17

    申请号：US14716448

    申请日：2015-05-19

    Applicant: Apple Inc.

    Inventor： Xinyu Zhu ,  Jun Qi ,  Po-Wen Chiu ,  Victor H. Yin

    IPC: F21V8/00

    CPC classification number: G02B6/0091 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0083

    Abstract: A display may have a backlight. The display backlight may have a light guide plate. An array of light-emitting diodes may emit light into the edge of the light guide plate. The array of light-emitting diodes may be mounted to a flexible printed circuit. A layer of adhesive tape may attach the light guide plate to the flexible printed circuit. The tape layer may have upper and lower adhesive layers on a carrier film. The carrier film may be formed from a metal-coated polymer layer, a high-low dielectric stack, a metal foil, or other reflective or non-reflective structures. A stiffener may be provided to facilitate handling of the adhesive tape.

    Abstract translation: 显示器可以具有背光。 显示器背光源可以具有导光板。 发光二极管阵列可以将光发射到导光板的边缘。 发光二极管阵列可安装在柔性印刷电路上。 一层胶带可以将导光板附接到柔性印刷电路。 带层可以在载体膜上具有上和下粘合剂层。 载体膜可以由金属涂覆的聚合物层，高低电介质叠层，金属箔或其它反射或非反射结构形成。 可以提供加强件以便于胶带的处理。

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