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    COMMON ELECTRODE DRIVING AND COMPENSATION FOR PIXELATED SELF-CAPACITANCE TOUCH SCREEN
    1.
    发明申请
    COMMON ELECTRODE DRIVING AND COMPENSATION FOR PIXELATED SELF-CAPACITANCE TOUCH SCREEN 审中-公开

    公开(公告)号：US20170351378A1

    公开(公告)日：2017-12-07

    申请号：US15687354

    申请日：2017-08-25

    Applicant: Apple Inc.

    Inventor： Chaohao WANG ,  Wonjae CHOI ,  Paolo SACCHETTO

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101

    Abstract: A touch screen is disclosed. A plurality of common electrodes can be configured to operate as display circuitry during a display phase, and to operate as touch sensing circuitry during a touch sensing phase. The plurality of common electrodes can include a first common electrode associated with a first display pixel, and a second common electrode associated with a second display pixel. Circuitry can be configured to update the first display pixel at a first time while driving the first common electrode but not the second common electrode, and update the second display pixel at a second time, after the first time, while driving the second common electrode but not the first common electrode. In some examples, the circuitry can be configured to leave the second common electrode floating while driving the first common electrode, and leave the first common electrode floating while driving the second common electrode.

    ADAPTIVE PIXEL VOLTAGE COMPENSATION FOR DISPLAY PANELS
    3.
    发明申请
    ADAPTIVE PIXEL VOLTAGE COMPENSATION FOR DISPLAY PANELS 审中-公开

    公开(公告)号：US20180322827A1

    公开(公告)日：2018-11-08

    申请号：US15711585

    申请日：2017-09-21

    Applicant: Apple Inc.

    Inventor： Sheng ZHANG ,  Chaohao WANG ,  Paolo SACCHETTO ,  Paul S. DRZAIC ,  Wei CHEN ,  Wei H. YAO

    IPC: G09G3/3241 ,  G09G3/20

    Abstract: A display device may include a display having a plurality of pixels. The display device may also include a replica pixel circuit having a switching device configured to output a first current based on a received voltage, a light-emitting diode (LED) configured to illuminate to a first gray level based on the first current output by the switching device, and current mirror circuitry configured to generate a second current that mirrors the first current. In addition, the replica pixel circuit may include a current source configured to output a reference current based on a voltage value that corresponds to the received voltage, comparator circuitry configured to determine a difference between the second current and the reference current, and voltage adjustment circuitry configured to adjust a source voltage output provided to the plurality of pixels based on the difference.

    DIGITAL COMPENSATION FOR V-GATE COUPLING
    5.
    发明申请
    DIGITAL COMPENSATION FOR V-GATE COUPLING 审中-公开
    V-GATE耦合数字补偿

    公开(公告)号：US20160111054A1

    公开(公告)日：2016-04-21

    申请号：US14976853

    申请日：2015-12-21

    Applicant: Apple Inc.

    Inventor： Chaohao WANG ,  Paolo SACCHETTO ,  Howard H. TANG

    IPC: G09G3/36

    CPC classification number: G09G3/3655 ,  G09G3/2011 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0465 ,  G09G2310/0281 ,  G09G2310/08 ,  G09G2320/0209

    Abstract: A display device may include a source line that provides a data line signal to a pixel of the display device, a gate line that provides a gate signal to a switches associated with the pixel, and a voltage gate line disposed parallel to the source line and coupled to the gate line at a cross point node. The display device may also include a driver circuit that receives a pixel value to provide to the pixel, determines a compensation amount for the pixel value based on an expected kickback voltage present on the pixel due to a coupling effect between the source line and the voltage gate line, generates a compensated data line signal based on the compensation value and the pixel value, and provides the compensated data line signal to the pixel via the source line.

    Abstract translation: 显示装置可以包括向显示装置的像素提供数据线信号的源极线，向与像素相关联的开关提供栅极信号的栅极线以及平行于源极线设置的电压栅极线，以及 耦合到交叉点节点处的栅极线。 显示装置还可以包括驱动器电路，其接收要提供给像素的像素值，由于源极线和电压之间的耦合效应，基于像素上存在的预期反冲电压来确定像素值的补偿量 栅极线，基于补偿值和像素值生成补偿数据线信号，并且经由源极线将经补偿的数据线信号提供给像素。

    REMOTE FEEDBACK TAPPING FOR A TOUCH SENSOR PANEL DRIVING CIRCUIT
    6.
    发明申请
    REMOTE FEEDBACK TAPPING FOR A TOUCH SENSOR PANEL DRIVING CIRCUIT 审中-公开
    用于触摸传感器面板驱动电路的远程反馈接头

    公开(公告)号：US20160231838A1

    公开(公告)日：2016-08-11

    申请号：US14869409

    申请日：2015-09-29

    Applicant: Apple Inc.

    Inventor： Chaohao WANG ,  Yingxuan LI ,  Hung Sheng LIN ,  Paolo SACCHETTO ,  Szu-Hsien LEE ,  Weijun YAO ,  Howard TANG

    IPC: G06F3/044 ,  G06F1/16 ,  H05K1/02 ,  G06F3/041

    Abstract: A system is disclosed. The system can comprise drive circuitry included in a first component of the system, the drive circuitry configured to drive a first touch electrode on a touch sensor panel. The system can also comprise a driving line configured to couple an output of the drive circuitry to the first touch electrode. The system can also comprise a feedback line configured to couple the output of the drive circuitry to an input of the drive circuitry, wherein a first end of the feedback line is coupled to the input of the drive circuitry at the first component, and a second end of the feedback line is configured to be coupled to the output of the drive circuitry at a second component, different from the first component, of the system.

    Abstract translation: 公开了一种系统。 系统可以包括包括在系统的第一部件中的驱动电路，驱动电路被配置为驱动触摸传感器面板上的第一触摸电极。 该系统还可以包括被配置为将驱动电路的输出耦合到第一触摸电极的驱动线。 该系统还可以包括被配置为将驱动电路的输出耦合到驱动电路的输入的反馈线，其中反馈线的第一端耦合到第一部件处的驱动电路的输入，第二 反馈线的端部被配置为在与系统的第一部件不同的第二部件处耦合到驱动电路的输出。

    SPATIAL TEMPORAL PHASE SHIFTED POLARITY AWARE DITHER
    9.
    发明申请
    SPATIAL TEMPORAL PHASE SHIFTED POLARITY AWARE DITHER 审中-公开

    公开(公告)号：US20170358255A1

    公开(公告)日：2017-12-14

    申请号：US15438448

    申请日：2017-02-21

    Applicant: Apple Inc.

    Inventor： Chaohao WANG ,  Paolo SACCHETTO ,  Sheng ZHANG ,  Yang LI ,  Myung-Je CHO ,  Marc ALBRECHT

    IPC: G09G3/20

    CPC classification number: G09G3/2055 ,  G09G3/2022 ,  G09G2320/0247 ,  G09G2320/0666

    Abstract: This application relates to performing certain dithering processes to eliminate display artifacts such as flicker, which can be caused by charge accumulation at the display. The dither process can be performed by a display controller that uses a group lookup method for identifying groups of dithering patterns that can be combined to expand a number of color values available to the display. The dither process can also be performed as a temporal process that incorporates groups of dithering patterns into frames and shifts a spatial arrangement of the groups of dithering patterns over a sequence of frames. Additionally, the dither process can incorporate counters that count the number of times a particular spatial arrangement of dithering patterns has been used in a sequence of frames in order that each spatial arrangement of dithering patterns will share an average count with other spatial arrangements over a sequence of frames.

    PIXEL SIGNAL COMPENSATION FOR A DISPLAY PANEL
    10.
    发明申请
    PIXEL SIGNAL COMPENSATION FOR A DISPLAY PANEL 审中-公开
    用于显示面板的像素信号补偿

    公开(公告)号：US20170018219A1

    公开(公告)日：2017-01-19

    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

    CPC classification number: G09G3/2092 ,  G09G2320/0204 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0693

    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.

    Abstract translation: 本申请涉及用于基于显示面板内的像素的位置来补偿显示面板的像素的电压的系统，方法和装置。 根据显示面板的校准，向显示面板内的每个像素或一组像素分配电压补偿量。 在显示面板的操作期间，为显示面板的位置生成像素数据，并且根据对应于该位置的电压补偿量修改像素数据。 通过以这种方式修改像素数据，可以减轻显示面板上的电压的空间变化，以便减少显示面板上某些显示伪像的发生。

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