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    Display backlight with adhesive attachment layers
    21.
    发明授权
    Display backlight with adhesive attachment layers 有权

    公开(公告)号：US09835793B2

    公开(公告)日：2017-12-05

    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.

    Displays with reflective polarizers
    23.
    发明授权
    Displays with reflective polarizers 有权
    显示反射偏振器

    公开(公告)号：US09239490B2

    公开(公告)日：2016-01-19

    申请号：US13935110

    申请日：2013-07-03

    Applicant: Apple Inc.

    Inventor： Xinyu Zhu ,  Jun Qi ,  Meizi Jiao ,  Nicholas G. Roland ,  Victor H. Yin ,  Wei Chen

    IPC: G02F1/13363 ,  G02F1/1335

    CPC classification number: G02F1/13363 ,  G02F1/133536 ,  G02F2001/133638 ,  G02F2413/12

    Abstract: An electronic device may be provided with a display mounted in a housing. The display may include a liquid crystal display module and a reflective polarizer having an in-plane optical axis. The display may also include a backlight unit that includes a light source, a light guide element, and a reflector film coupled to a backside of the light guide element. The display may also include a light retardation layer such as a quarter wave film. The quarter wave film may be arranged between the reflective polarizer and the reflector film of the backlight unit. During operation of the display, partially polarized light that is output from a front side of the light guide element may have a first component parallel to the in-plane optical axis and a second component perpendicular to the in-plane optical axis of the reflective polarizer. The second component may be reflected from the reflective polarizer.

    Abstract translation: 电子设备可以设置有安装在壳体中的显示器。 显示器可以包括液晶显示模块和具有面内光轴的反射偏振器。 显示器还可以包括背光单元，其包括光源，导光元件和耦合到导光元件的背面的反射膜。 显示器还可以包括诸如四分之一波片的光延迟层。 四分之一波片可以布置在反射偏振器和背光单元的反射膜之间。 在显示器的操作期间，从导光元件的前侧输出的部分偏振光可以具有平行于平面内的光轴的第一分量和垂直于反射偏振器的平面内光轴的第二分量 。 第二组分可以从反射偏振器反射。

    Light Guide Plate with Blunt Edges
    24.
    发明申请
    Light Guide Plate with Blunt Edges 有权
    导光板与钝边

    公开(公告)号：US20140176868A1

    公开(公告)日：2014-06-26

    申请号：US14049114

    申请日：2013-10-08

    Applicant: Apple Inc.

    Inventor： Xinyu Zhu ,  Po-Wen Chiu ,  Jun Qi

    IPC: F21V8/00 ,  B29D11/00

    CPC classification number: G02B6/0093 ,  B29D11/00663 ,  G02F1/133615

    Abstract: Electronic devices may include displays. A display may include display layers having an array of display pixels and a backlight unit that provides backlight illumination to the display pixels. The backlight unit may include a light guide plate that distributes light across the display layers and a stack of optical films that may be used to enhance backlight performance. The optical films may be interposed between the light guide plate and the display layers. The light guide plate may be provided with one or more rounded edges formed from curved surfaces and/or one or more beveled edges formed from chamfered surfaces. Providing the light guide plate with rounded or beveled edges may minimize abrasive contact between the light guide plate and the adjacent optical films. An injection molding tool may be used to mold a light guide plate with rounded or beveled edges.

    Abstract translation: 电子设备可以包括显示器。 显示器可以包括具有显示像素阵列的显示层和向显示像素提供背光照明的背光单元。 背光单元可以包括将光分布在显示层上的导光板和可用于增强背光性能的一叠光学膜。 光学膜可以介于导光板和显示层之间。 导光板可以设置有由弯曲表面形成的一个或多个圆形边缘和/或由倒角表面形成的一个或多个倾斜边缘。 为导光板提供圆形或斜边可以使导光板和相邻光学膜之间的磨料接触最小化。 可以使用注塑工具来模制具有圆形或斜边的导光板。

    Displays with Direct-lit Backlight Units Including Light-Emitting Diodes and Encapsulant
    29.
    发明申请
    Displays with Direct-lit Backlight Units Including Light-Emitting Diodes and Encapsulant 审中-公开

    公开(公告)号：US20190285950A1

    公开(公告)日：2019-09-19

    申请号：US16294723

    申请日：2019-03-06

    Applicant: Apple Inc.

    Inventor： Rong Liu ,  Daming Xu ,  Joshua A. Spechler ,  Jun Qi ,  Victor H. Yin ,  Ling Han ,  Juan He ,  Ziruo Hong ,  Mookyung Son ,  Heesang Suh ,  Xinyu Zhu

    IPC: G02F1/1335

    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.

    Displays With Multimode Backlight Units
    30.
    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。

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