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    Backlight assembly having assymetric light leakage promoting features
    141.
    发明授权
    Backlight assembly having assymetric light leakage promoting features 有权

    公开(公告)号：US09897744B2

    公开(公告)日：2018-02-20

    申请号：US15151171

    申请日：2016-05-10

    Applicant: Apple Inc.

    Inventor： Christiaan A. Ligtenberg ,  Victor H. Yin

    IPC: F21V8/00

    CPC classification number: G02B6/0061 ,  G02B6/0035 ,  G02B6/0051 ,  G02B6/0068 ,  G02B6/0085 ,  G02B6/009

    Abstract: An electronic device may have a display including an array of display pixels and a backlight assembly that provides backlight for the array of pixels. The backlight assembly may include a light guide layer having first and second opposing sides. The first side of the light guide layer may receive light from a first light source and the second side of the light guide layer may receive light from a second light source. To avoid overheating the first light source, the light emitted by the first light source may be less bright than the light emitted by the second light source. To compensate for the reduced brightness of the first light source, light leakage promotion features on the light guide layer may have a peak density that is closer to the first side of the light guide layer than the second side of the light guide layer.

    Display with localized backlight dimming
    143.
    发明授权
    Display with localized backlight dimming 有权

    公开(公告)号：US09785007B2

    公开(公告)日：2017-10-10

    申请号：US14249237

    申请日：2014-04-09

    Applicant: Apple Inc.

    Inventor： ByoungSuk Kim ,  Jun Qi ,  Victor H. Yin

    IPC: G02F1/1335 ,  H05B33/08 ,  G09G3/34

    CPC classification number: G02F1/133603 ,  G02F2001/133601 ,  G02F2001/133612 ,  G09G3/3426 ,  G09G2320/0686 ,  H05B33/086

    Abstract: A display may have an array of display pixels for displaying images for a user. A backlight unit may provide backlight for the display pixels. The backlight unit may have a substrate such as a printed circuit substrate. An array of locally dimmable backlight elements may be mounted on the substrate. The substrate may be mounted against an inner surface of a metal electronic device housing or other support structure in an electronic device. Each backlight element may have a semiconductor package containing a semiconductor die. The semiconductor die may have a light-emitting diode and a light-emitting-diode control circuit. The light-emitting-diode control circuit may have a pair of transistors and a capacitor. One of the transistors may be connected in series with the light-emitting diode. The light-emitting diode control circuit may receive control signals on a gate line terminal and a source line terminal.

    Displays with elevated backlight efficiency
    146.
    发明授权
    Displays with elevated backlight efficiency 有权
    显示器具有提升的背光效率

    公开(公告)号：US09568772B2

    公开(公告)日：2017-02-14

    申请号：US14684758

    申请日：2015-04-13

    Applicant: Apple Inc.

    Inventor： Xinyu Zhu ,  Jun Qi ,  Meizi Jiao ,  Nicholas G. Roland ,  Victor H. Yin ,  Wei Chen ,  Ming Xu ,  Cheng Chen ,  Zhibing Ge

    IPC: G02F1/13363 ,  G02F1/1335 ,  F21V8/00

    CPC classification number: G02F1/13363 ,  G02B6/0053 ,  G02B6/0073 ,  G02F1/133504 ,  G02F1/133536 ,  G02F2001/133638 ,  G02F2413/01

    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. 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。 从导光元件的前侧输出的部分偏振光可以具有平行于面内光轴的第一分量和垂直于反射型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。

    Organic light-emitting diode display with dynamic power supply control
    149.
    发明授权
    Organic light-emitting diode display with dynamic power supply control 有权
    有机发光二极管显示屏，动态电源控制

    公开(公告)号：US09368067B2

    公开(公告)日：2016-06-14

    申请号：US13894339

    申请日：2013-05-14

    Applicant: Apple Inc.

    Inventor： ByoungSuk Kim ,  Victor H. Yin ,  Jun Qi

    IPC: G09G3/30 ,  G09G3/32

    CPC classification number: G09G3/3258 ,  G09G3/3225 ,  G09G2320/043 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2360/16

    Abstract: A display may receive image data to be displayed for a user of an electronic device. Display driver circuitry in the display may include a timing controller that receives the image data. The timing controller can analyze frames of the image data to determine average luminance values for the frames. The display may include an array of organic light-emitting diode display pixels. Each display pixel may include a light-emitting diode. A transistor in each display pixel may be coupled in series with the light-emitting diode between positive and ground power supply terminals. The timing controller can limit peak luminance in the image data that is displayed on the array of display pixels as a function of average luminance. The timing controller can also direct power regulator circuitry to adjust a power supply voltage applied to the positive power supply terminal based on the average luminance.

    Abstract translation: 显示器可以接收要为电子设备的用户显示的图像数据。 在显示器中显示驱动器电路可以包括接收图像数据的定时控制器。 定时控制器可以分析图像数据的帧以确定帧的平均亮度值。 显示器可以包括有机发光二极管显示像素的阵列。 每个显示像素可以包括发光二极管。 每个显示像素中的晶体管可以与正电源端子和地电源端子之间的发光二极管串联耦合。 定时控制器可以将显示在显示像素阵列上的图像数据中的峰值亮度限制为平均亮度的函数。 定时控制器还可以引导功率调节器电路基于平均亮度来调节施加到正电源端子的电源电压。

    Flexible Cables in Electronic Devices With Moving Components
    150.
    发明申请
    Flexible Cables in Electronic Devices With Moving Components 有权
    具有移动元件的电子设备中的柔性电缆

    公开(公告)号：US20160014915A1

    公开(公告)日：2016-01-14

    申请号：US14328565

    申请日：2014-07-10

    Applicant: Apple Inc.

    Inventor： Bryan W. Posner ,  Christiaan A. Ligtenberg ,  Dinesh G. Mathew ,  Eric L. Benson ,  Robert Y. Cao ,  Valerie S. Chang ,  Victor H. Yin

    IPC: H05K5/00 ,  G06F1/16

    CPC classification number: H05K1/09 ,  G06F1/1616 ,  G06F1/1683 ,  H05K1/03

    Abstract: An electronic device may have a housing. Electrical components such as a display and other circuitry may be mounted in the housing. The housing may have portions that move with respect to each other such as a lid that rotates relative to a base. A flexible printed circuit may have metal lines that couple components in one portion of the housing to components in another portion of the housing. As the housing portions move with respect to each other, the flexible printed circuit bends. Reliability may be enhanced for the flexible printed circuit by providing the metal layer that forms the metal lines with upper and lower coating layers. The coating layers may be formed from metal with a higher Young's modulus than a metal core in the metal layer. A slot may be formed along the length of the flexible printed circuit to help increase the minimum bend radius exhibited by the flexible printed circuit. Upper and lower metal shield layers may be provided above and below the metal traces.

    Abstract translation: 电子设备可以具有壳体。 诸如显示器和其它电路的电气部件可以安装在壳体中。 壳体可以具有相对于彼此移动的部分，例如相对于基部旋转的盖。 柔性印刷电路可以具有将壳体的一部分中的部件耦合到壳体的另一部分中的部件的金属线。 当壳体部分相对于彼此移动时，柔性印刷电路弯曲。 通过提供形成具有上下涂层的金属线的金属层，可以提高柔性印刷电路的可靠性。 涂层可以由具有比金属层中的金属芯更高的杨氏模量的金属形成。 可以沿着柔性印刷电路的长度形成槽，以帮助增加由柔性印刷电路显示的最小弯曲半径。 上下金属屏蔽层可以设置在金属迹线的上方和下方。

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