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128 条记录 (耗时 0.02 秒)

    Display driver precharge circuitry
    21.
    发明授权
    Display driver precharge circuitry 有权
    显示驱动器预充电电路

    公开(公告)号：US09318068B2

    公开(公告)日：2016-04-19

    申请号：US14081834

    申请日：2013-11-15

    申请人： APPLE INC.

    发明人： David A. Stronks ,  Hopil Bae ,  Kingsuk Brahma ,  Sang Y. Youn

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3696 ,  G09G3/3648 ,  G09G2310/0248 ,  G09G2330/021

    摘要： Systems and methods for efficiently generating display driver timing signals are provided. In one example, display driver circuitry of an electronic display may provide a negative voltage from a negative voltage supply to display control circuitry during a first period and may provide a positive voltage from a positive voltage supply to the display control circuitry during a second period. After providing the negative voltage during the first period but before providing the positive voltage during the second period, the display driver circuitry may precharge the capacitance of the display control circuitry to ground. In this way, the positive voltage supply substantially does not supply charge to raise the voltage on the capacitance of the display control circuitry from the negative voltage to ground.

    摘要翻译： 提供了有效地产生显示驱动器定时信号的系统和方法。 在一个示例中，电子显示器的显示驱动器电路可以在第一时段期间从负电压源提供负电压到显示控制电路，并且可以在第二时段期间从正电压电源向显示控制电路提供正电压。 在第一时段内提供负电压之后但在第二周期期间提供正电压之前，显示驱动器电路可以将显示控制电路的电容预充电到地。 以这种方式，正电压基本上不提供电荷以将显示控制电路的电容的电压从负电压提升到地。

    Systems and methods for reducing or eliminating mura artifact using image feedback
    22.
    发明授权
    Systems and methods for reducing or eliminating mura artifact using image feedback 有权
    使用图像反馈减少或消除mura伪影的系统和方法

    公开(公告)号：US09001097B2

    公开(公告)日：2015-04-07

    申请号：US13654231

    申请日：2012-10-17

    申请人： Apple Inc.

    发明人： Ahmad Al-Dahle ,  David A. Stronks ,  Hopil Bae

    IPC分类号： G09G3/36 ,  G09G5/10 ,  G09G3/00

    CPC分类号： G09G3/3696 ,  G09G3/006 ,  G09G3/3655 ,  G09G2310/067 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0693 ,  G09G2360/145

    摘要： Systems, methods, and devices for calibrating an electronic display to reduce or eliminate a mura artifact are provided. The mura artifact may be due to differential behavior of common voltage layers (VCOMs) in the electronic display. One method for reducing or eliminating the mura artifact may involve setting pixels of the electronic display to a first gray level and measuring a luminance difference between light and dark areas of a mura artifact on the electronic display. A value of an operating parameter of the electronic display may be adjusted while monitoring the luminance difference measurement. A value of the operating parameter that causes the luminance difference measurement to be within a specified range of acceptable luminance difference measurement values may be stored in the electronic display.

    摘要翻译： 提供了用于校准电子显示器以减少或消除mura伪影的系统，方法和设备。 该mura伪影可能是由于电子显示器中的公共电压层（VCOM）的差异行为。 用于减少或消除凹陷假象的一种方法可以包括将电子显示器的像素设置为第一灰度级并且测量电子显示器上的mura伪影的亮区和暗区之间的亮度差。 可以在监视亮度差测量的同时调整电子显示器的操作参数的值。 导致亮度差测量在可接受的亮度差测量值的指定范围内的操作参数的值可以存储在电子显示器中。

    LIQUID CRYSTAL DISPLAY USING DEPLETION-MODE TRANSISTORS
    23.
    发明申请
    LIQUID CRYSTAL DISPLAY USING DEPLETION-MODE TRANSISTORS 有权
    液晶显示器采用分离模式晶体管

    公开(公告)号：US20150015559A1

    公开(公告)日：2015-01-15

    申请号：US13937825

    申请日：2013-07-09

    申请人： Apple Inc.

    发明人： Abbas Jamshidi-Roudbari ,  Cheng-Ho Yu ,  Hopil Bae ,  Shih Chang Chang ,  Ting-Kuo Chang

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3696 ,  G09G3/3688 ,  G09G2310/0245 ,  G09G2310/0297 ,  G09G2320/0204 ,  G09G2320/0266 ,  G09G2330/027

    摘要： Methods and devices employing charge removal circuitry are provided to reduce or eliminate artifacts due to a bias voltage remaining on an electronic display after the display is turned off. In one example, a method may include connecting a pixel electrode of a display to ground through charge removal circuitry while the display is off (e.g., using depletion-mode transistors that are active when gates of the depletion-mode transistors are provided a ground voltage). When a corresponding common electrode is also connected to ground, a voltage difference between the pixel electrode and common electrode may be reduced or eliminated, preventing a bias voltage from causing display artifacts in the pixel.

    摘要翻译： 提供了使用电荷去除电路的方法和装置，以减少或消除由于在显示器关闭之后电子显示器上剩余的偏置电压引起的伪影。 在一个示例中，方法可以包括通过电荷去除电路将显示器的像素电极连接到显示器关闭时（例如，使用在耗尽型晶体管的栅极被提供接地电压时有效的耗尽型晶体管） ）。 当相应的公共电极也接地时，可以减小或消除像素电极和公共电极之间的电压差，从而防止偏压在像素中引起显示伪影。

    DEVICES AND METHODS FOR REDUCING POWER CONSUMPTION OF A DEMULTIPLEXER
    24.
    发明申请
    DEVICES AND METHODS FOR REDUCING POWER CONSUMPTION OF A DEMULTIPLEXER 有权
    用于降低分解器消耗功率的装置和方法

    公开(公告)号：US20140132585A1

    公开(公告)日：2014-05-15

    申请号：US13890928

    申请日：2013-05-09

    申请人： Apple Inc

    发明人： Sang Y. Youn ,  Hopil Bae ,  David A. Stronks ,  Kingsuk Brahma ,  Taif A. Syed

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3611 ,  G09G2310/0297 ,  G09G2330/021

    摘要： The present disclosure relates to devices and methods for reducing power consumption of a display. One electronic display includes a first switch coupled between a first gate of a first transistor and a second gate of a second transistor to selectively connect the first gate to the second gate. The display includes a second switch coupled between the second gate of the second transistor and a third gate of a third transistor to selectively connect the second gate to the third gate. The display also includes driving circuitry that controls the first switch to connect the first gate to the second gate to share a first charge between the first and second gates. The driving circuitry also controls the second switch to connect the second gate to the third gate to share a second charge between the second and third gates. Accordingly, power consumption of the display may be reduced.

    摘要翻译： 本公开涉及用于降低显示器的功耗的装置和方法。 一个电子显示器包括耦合在第一晶体管的第一栅极和第二晶体管的第二栅极之间的第一开关，以选择性地将第一栅极连接到第二栅极。 显示器包括耦合在第二晶体管的第二栅极和第三晶体管的第三栅极之间的第二开关，以选择性地将第二栅极连接到第三栅极。 显示器还包括控制第一开关以将第一栅极连接到第二栅极以共享第一和第二栅极之间的第一电荷的驱动电路。 驱动电路还控制第二开关以将第二栅极连接到第三栅极，以在第二和第三栅极之间共享第二电荷。 因此，可以减少显示器的功耗。

    SPATIOTEMPORAL DITHER FOR PULSED DIGITAL DISPLAY SYSTEMS AND METHODS
    25.
    发明公开
    SPATIOTEMPORAL DITHER FOR PULSED DIGITAL DISPLAY SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20240021132A1

    公开(公告)日：2024-01-18

    申请号：US18318484

    申请日：2023-05-16

    申请人： Apple Inc.

    发明人： Hopil Bae ,  Xiang Lu ,  Haitao Li

    IPC分类号： G09G3/20 ,  G09G3/32

    CPC分类号： G09G3/2051 ,  G09G3/32 ,  G09G3/2022 ,  G09G2310/08 ,  G09G2320/0247

    摘要： In accordance with embodiments of the present disclosure, a device may include a pulsed emission electronic display having multiple display pixels in order to display an image frame. The display may pulse one or more display pixels of over a plurality of sub-frames within the image frame based on display image data. The device may also include image processing circuitry to generate the display image data based on source image data indicative of an image to be displayed during the image frame. Additionally, the image processing circuitry may dither an order of the plurality of sub-frames.

    Real-Time Peak Luminance Control for Pulsed Electronic Display
    26.
    发明公开
    Real-Time Peak Luminance Control for Pulsed Electronic Display 审中-公开

    公开(公告)号：US20240005890A1

    公开(公告)日：2024-01-04

    申请号：US18216489

    申请日：2023-06-29

    申请人： Apple Inc.

    发明人： Seung B. Rim ,  Mahdi Farrokh Baroughi ,  Hopil Bae ,  Haitao Li ,  Young Don Bae ,  Mahesh B. Chappalli ,  Meir Harar

    IPC分类号： G09G5/00

    CPC分类号： G09G5/003 ,  G09G2330/021 ,  G09G2360/147

    摘要： The present disclosure is directed to estimating and modulating peak luminance of the display substantially in real-time to allow very bright pixels to be shown on the electronic display as long as the total electrical energy drawn by the electronic display does not exceed a threshold. The amount of electrical energy that is being drawn by the electronic display may be estimated from the image data by counting the number of rows of pixels that are emitting pulses in discrete bins of time. Because the pulses draw a predictable amount of electrical energy per row per time bin, the amount of electrical energy drawn by the electronic display may be estimated substantially in real time. The image data on the electronic display may therefore be modulated to avoid drawing too much electrical energy from the power source of the electronic device while permitting a high dynamic range.