公开(公告)号：US20190179074A1

公开(公告)日：2019-06-13

申请号：US16280925

申请日：2019-02-20

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 ,  G02F1/139 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13 ,  G02F1/1333

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.

公开(公告)号：US10247982B2

公开(公告)日：2019-04-02

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: G02F1/13357 ,  F21V8/00 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/139 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/29

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.

公开(公告)号：US09658479B2

公开(公告)日：2017-05-23

申请号：US14104298

申请日：2013-12-12

Applicant: Apple Inc.

Inventor： Joshua G. Wurzel ,  David A. Doyle ,  Shawn R. Gettemy ,  Wey-Jiun Lin

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133308 ,  G02F2001/133317 ,  G02F2001/133322 ,  G02F2201/54

Abstract: An electronic device may be provided with electrical components mounted in an electronic device housing. A display module may be attached to a display cover layer with a layer of adhesive to form a display module assembly. The display module assembly may include a display module assembly chassis. The display module assembly chassis may include a plastic display module assembly chassis molded over a metal display module assembly chassis. The display module assembly and a backlight unit may be assembled to form a display module that is installed within the electronic device housing or display module assembly layers and backlight unit structures may be assembled into the electronic device housing. The backlight unit may include a backlight unit chassis. A metal housing midplate may serve as part of the backlight unit chassis.

公开(公告)号：US20140226110A1

公开(公告)日：2014-08-14

申请号：US13765656

申请日：2013-02-12

Applicant: APPLE INC.

Inventor： David A. Doyle ,  Paul S. Drzaic ,  Jean-Pierre S. Guillou ,  Joshua G. Wurzel

IPC: G02F1/1335

CPC classification number: G02F1/133603 ,  G02F2001/133624 ,  G02F2202/28

Abstract: An electronic device may be provided with a display. The display may include a liquid crystal display cell and an organic light-emitting diode backlight unit. The liquid crystal display cell may include a color filter layer, a liquid crystal layer, and a thin-film transistor layer. The organic light-emitting diode backlight unit may include organic emissive material formed on a substrate. The organic emissive material may generate backlight for liquid crystal display cell. Display pixels in the liquid crystal display cell may control the emission of the backlight from the display. The organic light-emitting diode backlight unit may be attached to the display using adhesive, laminated to a polarizer layer of the display cell, or may be integrated into the liquid crystal display cell. The backlight unit may include conductive vias or bent extended edge portions for coupling the backlight unit to control circuitry.

Abstract translation: 电子设备可以设置有显示器。 显示器可以包括液晶显示单元和有机发光二极管背光单元。 液晶显示单元可以包括滤色器层，液晶层和薄膜晶体管层。 有机发光二极管背光单元可以包括形成在基板上的有机发光材料。 有机发光材料可以产生用于液晶显示单元的背光。 液晶显示单元中的显示像素可以控制来自显示器的背光的发射。 有机发光二极体背光单元可以使用粘合剂附着到显示器上，层压到显示单元的偏振器层，或者可以集成到液晶显示单元中。 背光单元可以包括用于将背光单元耦合到控制电路的导电通孔或弯曲的延伸边缘部分。

公开(公告)号：US11145249B1

公开(公告)日：2021-10-12

申请号：US16930204

申请日：2020-07-15

Applicant: Apple Inc.

Inventor： Wanglei Han ,  Akshay Bhat ,  Michael H. Lim ,  Kyung Hoae Koo ,  Jiayi Jin ,  David A. Doyle ,  Tae-Wook Koh ,  Jared S. Price ,  Yifan Zhang ,  Mahdi Nezamabadi

IPC: G09G3/3225 ,  G09G3/00

Abstract: A display may include pixels (such as light-emitting diode pixels) that are susceptible aging effects (burn-in). To help avoid visible artifacts caused by burn-in during operation of the display, compensation circuitry may be used to compensate image data for the display. An optical sensor may be included behind the pixels to directly measure pixel brightness levels. The optical sensor may provide optical sensor data from testing operations to the compensation circuitry. The optical sensor may gather data during burn-in testing operations. During the burn-in testing operations, pixel groups including both high-usage pixels and low-usage pixels may sequentially emit light while the optical sensor gathers data. Brightness differences between the high-usage pixels and low-usage pixels may be used to characterize pixel aging in the display and compensate image data to mitigate visible artifacts caused by burn-in. The optical sensor may also gather data during global brightness testing operations.

公开(公告)号：US10983482B2

公开(公告)日：2021-04-20

申请号：US16277842

申请日：2019-02-15

Applicant: Apple Inc.

Inventor： Tae-Wook Koh ,  Yiqiang Nie ,  Yifan Zhang ,  Giovanni M. Agnoli ,  Paul S. Drzaic ,  David A. Doyle

IPC: G06F1/00 ,  G04G9/00 ,  G09G3/20 ,  G09G3/3225

Abstract: An electronic device such as a wristwatch device or other device may have a display. The display may be used to continuously display information such as watch face information. A watch face image on the display may contain watch face elements such as watch face hands, watch face indices, and complications. To reduce burn-in risk for watch face elements, control circuitry in the electronic device may impose burn-in constraints on attributes of the watch face elements such as peak luminance constraints, dwell time constraints, color constraints, constraints on the shape of each element, and constraints on element style. These constraints may help avoid situations in which static elements such as watch face indices create more burn-in than dynamic elements such as watch face hands.

公开(公告)号：US20200218204A1

公开(公告)日：2020-07-09

申请号：US16277842

申请日：2019-02-15

Applicant: Apple Inc.

Inventor： Tae-Wook Koh ,  Yiqiang Nie ,  Yifan Zhang ,  Giovanni M. Agnoli ,  Paul S. Drzaic ,  David A. Doyle

IPC: G04G9/00 ,  G09G3/20 ,  G09G3/3225

Abstract: An electronic device such as a wristwatch device or other device may have a display. The display may be used to continuously display information such as watch face information. A watch face image on the display may contain watch face elements such as watch face hands, watch face indices, and complications. To reduce burn-in risk for watch face elements, control circuitry in the electronic device may impose burn-in constraints on attributes of the watch face elements such as peak luminance constraints, dwell time constraints, color constraints, constraints on the shape of each element, and constraints on element style. These constraints may help avoid situations in which static elements such as watch face indices create more burn-in than dynamic elements such as watch face hands.

公开(公告)号：US10306729B2

公开(公告)日：2019-05-28

申请号：US15334094

申请日：2016-10-25

Applicant: Apple Inc.

Inventor： Cheng Chen ,  Jiaying Wu ,  Lu Zhang ,  David A. Doyle ,  Christopher E. Glazowski ,  Adria Fores Herranz ,  Chenhua You ,  Wei Chen ,  Jun Qi ,  John Z. Zhong

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

Abstract: An electronic device may be provided with a display having a backlight with light sources of different colors. The electronic device may include a color ambient light sensor that measures the color of ambient light and control circuitry that adjusts the color of light emitted from the backlight based on the color of ambient light. The light sources may include at least first and second light-emitting diodes that emit light having different color temperatures. The control circuitry may adjust the intensity of light emitted from the first light-emitting diode relative to the intensity of light emitted from the second light-emitting diode to produce a backlight color that more closely matches the color of ambient light. The first and second light-emitting diodes may include an ultraviolet light-emitting diode die and a blue light-emitting diode die that are mounted in a common semiconductor package.

公开(公告)号：US20170045663A1

公开(公告)日：2017-02-16

申请号：US14861686

申请日：2015-09-22

Applicant: Apple Inc

Inventor： Michael J. Brown ,  David A. Doyle

IPC: F21V8/00

CPC classification number: G02B6/0018 ,  G02B6/0021 ,  G02B6/0025 ,  G02B6/0028 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0043

Abstract: A display may have a backlight unit with a row of light-emitting diodes that emit light into the edge of a light guide plate. The light guide plate may have opposing upper and lower surfaces. The upper surface of the light guide plate may have ridges and the lower surface of the light guide plate may have bumps. The edge of the light guide plate may have light mixing structures. The light mixing structures may include edge surfaces that refract light at a high angle. The high angle light may then be reflected by a reflective surface so that the light propagates down the light guide plate. Some light may pass through the light mixing structures and propagate down the light guide plate without being reflected by the reflective surface. This arrangement may reduce the mixing distance of the backlight unit.

Abstract translation: 显示器可以具有背光单元，其具有发射到导光板的边缘的光的一排发光二极管。 导光板可以具有相对的上表面和下表面。 导光板的上表面可以具有脊，并且导光板的下表面可以具有凸起。 导光板的边缘可以具有轻混合结构。 光混合结构可以包括以大角度折射光的边缘表面。 然后，大角度光可以被反射表面反射，使得光沿导光板向下传播。 一些光可以穿过光混合结构并且在导光板下方传播而不被反射表面反射。 这种布置可以减少背光单元的混合距离。

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。