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    Pixel Layouts for Electronic Device Displays
    21.
    发明公开
    Pixel Layouts for Electronic Device Displays 审中-公开

    公开(公告)号：US20240027847A1

    公开(公告)日：2024-01-25

    申请号：US18464081

    申请日：2023-09-08

    Applicant: Apple Inc.

    Inventor： Shih-Chyuan Fan Jiang ,  Yuechen Wu ,  Xiaokai Li ,  Cheng-Ho Yu ,  Zhibing Ge

    IPC: G02F1/1343 ,  G02F1/1335

    CPC classification number: G02F1/134309 ,  G02F1/133553 ,  G02F1/133514

    Abstract: Increasing resolution of liquid crystal displays may result in small distances between adjacent liquid crystal display pixels. This tight pixel spacing may reduce transmission through the liquid crystal display pixels and may result in cross-talk between the liquid crystal display pixels. To increase transmission and, correspondingly, display efficiency, a reflective layer may be included in the liquid crystal display. The reflective layer recycles backlight that may otherwise be absorbed, improving transmittance and efficiency. To reduce color shift and color mixing caused by cross-talk, the pixels may have their pixel electrodes arranged in a zigzag layout. Each pixel electrode may have a height that is less than or equal to the total height of the pixel divided by two. The pixel electrodes in a given row are also alternatingly coupled to first and second gate lines. This zigzag layout results in an increased distance between adjacent pixel electrodes, mitigating pixel cross-talk.

    Techniques to compensate for flicker at low refresh rates
    22.
    发明授权
    Techniques to compensate for flicker at low refresh rates 有权

    公开(公告)号：US11521563B2

    公开(公告)日：2022-12-06

    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.

    Gaze-dependent display encryption
    24.
    发明授权
    Gaze-dependent display encryption 有权

    公开(公告)号：US10996748B2

    公开(公告)日：2021-05-04

    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 ,  G06K9/62 ,  G06K9/32 ,  H04L29/06

    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.

    Pixel signal compensation for a display panel
    26.
    发明授权
    Pixel signal compensation for a display panel 有权

    公开(公告)号：US10276085B2

    公开(公告)日：2019-04-30

    申请号：US14973517

    申请日：2015-12-17

    Applicant: Apple Inc.

    Inventor： Chaohao Wang ,  Paolo Sacchetto ,  Marc Albrecht ,  Christopher P. Tann ,  Shih-Chyuan Fan Jiang ,  Howard H. Tang ,  James E. C. Brown ,  Zhibing Ge

    IPC: G09G3/20

    Abstract: This application relates to systems, methods, and apparatus for compensating voltage for pixels of a display panel based on the location of the pixels within the display panel. An amount of voltage compensation is assigned to each pixel or a group of pixels within the display panel in accordance with a calibration of the display panel. During operation of the display panel, pixel data is generated for a location of the display panel, and the pixel data is modified according to the amount of voltage compensation corresponding to the location. By modifying the pixel data in this way, spatial variations in voltage across the display panel can be mitigated in order to reduce the occurrence of certain display artifacts at the display panel.

    Display with Column Spacer Structures
    27.
    发明申请
    Display with Column Spacer Structures 有权
    用柱间隔结构显示

    公开(公告)号：US20150370115A1

    公开(公告)日：2015-12-24

    申请号：US14307841

    申请日：2014-06-18

    Applicant: Apple Inc.

    Inventor： Zhibing Ge ,  Yeon Sik Ham ,  Cheng Chen ,  Chia Hsuan Tai ,  Enkhamgalan Dorjgotov ,  Sang Un Choi ,  Shih-Chyuan Fan Jiang

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

    CPC classification number: G02F1/13394 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/1368 ,  G02F2001/13396 ,  G02F2001/13398 ,  G02F2001/136222

    Abstract: A display may have a color filter layer and a thin-film transistor layer. A layer of liquid crystal material may be located between the color filter layer and the thin-film transistor layer. Column spacers may be formed on the color filter layer to maintain a desired gap between the color filter and thin-film transistor layers. Support pads may be used to support the column spacers. The column spacers and support pads may have comparable thicknesses. Different column spacers may be located at different portions of the support pads to allow the support pad size to be reduced while ensuring adequate support.

    Abstract translation: 显示器可以具有滤色器层和薄膜晶体管层。 液晶材料层可以位于滤色器层和薄膜晶体管层之间。 柱状间隔物可以形成在滤色器层上，以保持滤色器和薄膜晶体管层之间的期望的间隙。 支撑垫可用于支撑柱间隔物。 柱间隔件和支撑垫可具有可比较的厚度。 不同的柱间隔件可以位于支撑垫的不同部分，以允许在确保足够支撑的同时减小支撑垫尺寸。

    Display having pixel circuits with adjustable storage capacitors
    28.
    发明授权
    Display having pixel circuits with adjustable storage capacitors 有权
    显示器具有可调节存储电容器的像素电路

    公开(公告)号：US09182643B1

    公开(公告)日：2015-11-10

    申请号：US14494498

    申请日：2014-09-23

    Applicant: Apple Inc.

    Inventor： Zhibing Ge ,  Enkhamgalan Dorjgotov ,  Cheng Chen ,  Lei Zhao ,  Chun-Yao Huang ,  Shih-Chang Chang ,  Shih-Chyuan Fan Jiang

    IPC: G02F1/1343 ,  G02F1/136 ,  G02F1/1368 ,  G02F1/1362

    CPC classification number: G02F1/13624 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/136213 ,  G02F1/136277 ,  G02F1/1368

    Abstract: A liquid crystal display may have a layer of liquid crystal material. The display may have an array of display pixel circuits. The display pixel circuits may each include a display pixel electrode that applies electric fields to a corresponding portion of the liquid crystal material. Thin-film transistor circuitry and other structures in the display pixels may control operation of the display pixels circuits. The thin-film transistor circuitry may be configured to handle operation of the display at multiple refresh rates. To accommodate multiple refresh rates, each pixel circuit may include a pair of transistors. A first transistor is used to apply data signals from a data line to the display pixel electrode. A storage capacitor is used to maintain the data signal on the electrode. The second transistor may be used to adjust the capacitance of the storage capacitor depending on the refresh rate of the display.

    Abstract translation: 液晶显示器可以具有液晶材料层。 显示器可以具有显示像素电路的阵列。 显示像素电路可以各自包括将电场施加到液晶材料的对应部分的显示像素电极。 显示像素中的薄膜晶体管电路和其他结构可以控制显示像素电路的操作。 薄膜晶体管电路可以被配置为以多个刷新速率处理显示器的操作。 为了适应多个刷新率，每个像素电路可以包括一对晶体管。 第一晶体管用于将数据信号从数据线施加到显示像素电极。 使用存储电容器来维持电极上的数据信号。 第二晶体管可以用于根据显示器的刷新率来调整存储电容器的电容。

    Step-down pixel response correction systems and methods
    29.
    发明授权
    Step-down pixel response correction systems and methods 有权

    公开(公告)号：US10535287B2

    公开(公告)日：2020-01-14

    申请号：US15275374

    申请日：2016-09-24

    Applicant: Apple Inc.

    Inventor： Chaohao Wang ,  Lu Zhang ,  Zhibing Ge ,  Shih-Chyuan Fan Jiang ,  Ilie Garbacea ,  Marc Albrecht ,  Kingsuk Brahma ,  Hopil Bae ,  Paolo Sacchetto ,  Jie Won Ryu ,  Sandro H. Pintz ,  Chengrui Le

    IPC: G09G3/34 ,  G09G3/3258 ,  G09G3/36 ,  G09G3/20

    Abstract: Systems and methods are provided for improving displayed image quality of an electronic display that includes a display pixel. The electronic display displays a first image frame directly after a second image frame by applying an analog electrical signal to the display pixel. To facilitate display of the first image frame, circuitry receives image data corresponding to the image frame, in which the image data includes a grayscale value that indicates target luminance of the display pixel; determines expected refresh rate of the first image frame based at least in part on actual refresh rate of the second image frame; determines a pixel response correction offset based at least in part on the expected refresh rate of the first image frame; and determines processed image data by applying the pixel response correction offset to the grayscale value, in which the processed image data indicates magnitude of the analog electrical signal.

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