公开(公告)号：US11598985B1

公开(公告)日：2023-03-07

申请号：US17466269

申请日：2021-09-03

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Donald R. Monroe ,  Peter F. Masschelein ,  Stephen B. Lynch ,  Xiaokai Li ,  Zhibing Ge

IPC: B60J3/04 ,  G02F1/1334 ,  G02F1/1333 ,  G02F1/137 ,  G02F1/01 ,  B60J3/00

Abstract: A system such as a vehicle, building, or electronic device system may have a support structure with one or more windows. The support structure and window may separate an interior region within the system from a surrounding exterior region. Control circuitry may receive input such as user input and may adjust an adjustable layer in the window based on the input. The adjustable layer may have a polymer matrix layer with embedded cells. The cells may include intermixed guest-host liquid crystal cells and liquid crystal cells. The guest-host liquid crystal cells and liquid crystal cells may have different liquid crystal materials and/or different sizes that allow the guest-host liquid crystal cells and liquid crystal cells to electrically switch states at different respective threshold voltages. Based on the user input or other input the control circuitry can adjust a drive signal across the adjustable layer to change light transmittance and haze.

公开(公告)号：US20210350752A1

公开(公告)日：2021-11-11

申请号：US17223903

申请日：2021-04-06

Applicant: Apple Inc.

Inventor： Zhibing Ge ,  Chengrui Le ,  Yuechen Wu ,  Xiaokai Li ,  Lingyu Hong ,  Chaohao Wang ,  Shih-Chyuan Fan Jiang

IPC: G09G3/34 ,  G09G3/36

Abstract: Certain embodiments are directed to techniques (e.g., a method, an apparatus, and non-transitory computer readable medium storing code or instructions executable by one or more processors) for mitigating the flicker on the displays at low driving frequencies due to drops of the voltage holding ratio of the materials for the display. The techniques to compensate for flicker in a liquid crystal display can include generating a dynamic waveform for the backlight of the display. The dynamic waveform can be synchronized with the driving rate of the liquid crystal display such that the luminosity of the backlight increases during periods when the voltage-holding ratio drops in the materials of the display. In this way, a liquid crystal material can be utilized in a display to generate reduced power consumption with liquid crystal rate minimizing the flicker in response to the drops of the voltage-holding ratio.

公开(公告)号：US11099386B1

公开(公告)日：2021-08-24

申请号：US16283550

申请日：2019-02-22

Applicant: Apple Inc.

Inventor： Hyungryul Choi ,  Lei Zhao ,  Chaohao Wang ,  Enkhamgalan Dorjgotov ,  Shih-Chyuan Fan Jiang ,  Zhibing Ge ,  Graham B. Myhre

IPC: G02B27/01 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1337

Abstract: An optical system may include equipment with a housing that is configured to receive external equipment such as a cellular telephone. The external equipment may have a display mounted on a front face of the external equipment and may have additional components such as a front-facing camera. Communications circuitry in the equipment may support wired and wireless communications with the external equipment. An optical combiner in the equipment may be used to combine display image light emitted from pixels in the display with real-world image light received from external objects. The optical combiner may have a reflector with a concave lens shape that focuses light from the display towards eye boxes in which a viewer's eyes are located. The reflector may be a partial mirror or a reflective polarizer. The reflective polarizer and additional components may be used in implementing a tunable tint layer.

公开(公告)号：US20200081527A1

公开(公告)日：2020-03-12

申请号：US16565298

申请日：2019-09-09

Applicant: Apple Inc.

Inventor： Mehmet Agaoglu ,  Cheng Chen ,  Harsha Shirahatti ,  Zhibing Ge ,  Shih-Chyuan Fan Jiang ,  Nischay Goel ,  Jiaying Wu ,  William Sprague

IPC: G06F3/01 ,  G06K9/00 ,  G02B27/00

Abstract: Aspects of the subject technology relate to gaze-dependent visual encryption of electronic device displays. Each display frame that is displayed on the electronic device display may include a clear-display region around the user's gaze location and an obscured region outside the clear-display region. In this way, only the display content that the user is actively viewing is recognizable and understandable and an onlooker such as an unwanted observer looking over the user's shoulder is unable to understand what is displayed. The obscured region of each display frame may be generated such that the overall look and structure of that region is unchanged, but the content is unintelligible. In this way, the visual experience of the user is not disrupted or distracted by the visual encryption and the eye of the onlooker is not guided to the clear-display region by the visual encryption.

公开(公告)号：US10520763B2

公开(公告)日：2019-12-31

申请号：US15703843

申请日：2017-09-13

Applicant: Apple Inc.

Inventor： Shih-Chyuan Fan Jiang ,  Zhibing Ge ,  Lei Zhao ,  Chaohao Wang ,  Paul P. Lu

IPC: G02F1/1333 ,  G02F1/1337 ,  G02F1/1343 ,  G09G3/36 ,  H01L27/12 ,  H01L29/66 ,  G02F1/1368 ,  G02F1/1362

Abstract: Liquid crystal display systems and methods of operation are described. In an embodiment, a liquid crystal display pixel cell includes an insulation layer spanning over a passivation layer and the plurality of signal electrodes such that it separates the signal electrodes from polymer alignment layer for the liquid crystal. In an embodiment, a method of operating a liquid crystal display panel includes temporal compensation of the Vcom value as a function of time and one or more operating parameters.

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：US20170293174A1

公开(公告)日：2017-10-12

申请号：US15260082

申请日：2016-09-08

Applicant: Apple Inc.

Inventor： Chia Hsuan Tai ,  Cheng Chen ,  Da Yu ,  Enkhamgalan Dorjgotov ,  Sang Un Choi ,  Shih-Chyuan Fan Jiang ,  Tae Woon Cha ,  Yeon Sik Ham ,  Yuan Chen ,  Zhibing Ge ,  Hossein Nemati

IPC: G02F1/1339 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/1368

Abstract: A liquid crystal display may have main column spacers and subspacer column spacers. The column spacers may have cross shapes formed from overlapping perpendicular rectangular column spacer portions respectively located on a color filter layer and a thin-film transistor layer. The column spacers may have a hybrid configuration in which some of the rectangular portions on the thin-film transistor layer extend vertically and some extend horizontally. Column spacers may be formed from planarization layer material, may be formed from locally thickened portions of a planarization layer, and may have circular shapes.

公开(公告)号：US09703151B2

公开(公告)日：2017-07-11

申请号：US14947356

申请日：2015-11-20

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Zhibing Ge ,  Adria Fores Herranz ,  Chia Hsuan Tai ,  Hossein Nemati ,  Jun Jiang ,  Cheng Chen

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1368 ,  G02F1/1337

CPC classification number: G02F1/134336 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133707 ,  G02F1/133753 ,  G02F1/134309 ,  G02F1/1368 ,  G02F2001/133757 ,  G02F2001/134345

Abstract: A layer of liquid crystal material may be interposed between display layers. The display layers may include thin-film transistor circuitry having subpixel electrodes for applying electric fields to subpixel portions of the layer of liquid crystal material. Subpixels of different colors may have different shapes and may have different liquid crystal layer thicknesses. These subpixel differences may be configured to slow the switching speed of subpixels of a certain color relative to other subpixels to reduce color motion blur when an object is moved across a black or colored background. The subpixels may have chevron shapes. Subpixels of a first color may have chevron shapes that are less bent than subpixels of second and third colors. In configurations with varying liquid crystal layer thicknesses, the subpixels of the first color may have thicker liquid crystal layers than the subpixels of the second and third colors.

公开(公告)号：US20160259218A1

公开(公告)日：2016-09-08

申请号：US14947356

申请日：2015-11-20

Applicant: Apple Inc.

Inventor： Yuan Chen ,  Zhibing Ge ,  Adria Fores Herranz ,  Chia Hsuan Tai ,  Hossein Nemati ,  Jun Jiang ,  Cheng Chen

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1368

CPC classification number: G02F1/134336 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/133707 ,  G02F1/133753 ,  G02F1/134309 ,  G02F1/1368 ,  G02F2001/133757 ,  G02F2001/134345

Abstract: A layer of liquid crystal material may be interposed between display layers. The display layers may include thin-film transistor circuitry having subpixel electrodes for applying electric fields to subpixel portions of the layer of liquid crystal material. Subpixels of different colors may have different shapes and may have different liquid crystal layer thicknesses. These subpixel differences may be configured to slow the switching speed of subpixels of a certain color relative to other subpixels to reduce color motion blur when an object is moved across a black or colored background. The subpixels may have chevron shapes. Subpixels of a first color may have chevron shapes that are less bent than subpixels of second and third colors. In configurations with varying liquid crystal layer thicknesses, the subpixels of the first color may have thicker liquid crystal layers than the subpixels of the second and third colors.

Abstract translation: 可以在显示层之间插入一层液晶材料。 显示层可以包括具有用于向液晶材料层的子像素部分施加电场的子像素电极的薄膜晶体管电路。 不同颜色的子像素可以具有不同的形状，并且可以具有不同的液晶层厚度。 这些子像素差可以被配置为减慢相对于其他子像素的特定颜色的子像素的切换速度，以减少当物体在黑色或彩色背景上移动时的颜色运动模糊。 子像素可以具有人字形。 第一颜色的子像素可以具有比第二和第三颜色的子像素弯曲少的人字形。 在具有不同液晶层厚度的配置中，第一颜色的子像素可以具有比第二和第三颜色的子像素更厚的液晶层。