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    CHARGE PUMP HAVING AC AND DC OUTPUTS FOR TOUCH PANEL BOOTSTRAPPING AND SUBSTRATE BIASING
    3.
    发明申请
    CHARGE PUMP HAVING AC AND DC OUTPUTS FOR TOUCH PANEL BOOTSTRAPPING AND SUBSTRATE BIASING 有权
    具有触摸屏面板引导和基板偏移的交流和直流输出的充电泵

    公开(公告)号：US20160241139A1

    公开(公告)日：2016-08-18

    申请号：US15043405

    申请日：2016-02-12

    Applicant: Apple Inc.

    Inventor： Weijun YAO ,  David A. STRONKS ,  Hopil BAE ,  Kingsuk BRAHMA ,  Wei Hsin YAO ,  Yafei BI ,  Yingxuan LI

    IPC: H02M3/07 ,  G06F3/044 ,  G06F3/041

    CPC classification number: H02M3/07 ,  G06F1/3262 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  H01L23/642

    Abstract: A charge pump that can be configured to operate in a first mode and a second mode is disclosed. The charge pump can comprise a charging capacitor coupled to a first node and configured to transfer a first DC voltage to the first node. The charge pump can also comprise a first output node and a second output node coupled to the first node. During the first mode, the first output node can be configured to output a second DC voltage based on the first DC voltage, and the second output node can be configured to output a third DC voltage based on the first DC voltage. During the second mode, the first output node can be configured to output the second DC voltage, and the second output node can be configured to output an AC voltage, the AC voltage being offset by the third DC voltage.

    Abstract translation: 公开了一种可被配置为在第一模式和第二模式下操作的电荷泵。 电荷泵可以包括耦合到第一节点并被配置为将第一DC电压传送到第一节点的充电电容器。 电荷泵还可以包括耦合到第一节点的第一输出节点和第二输出节点。 在第一模式期间，第一输出节点可以被配置为基于第一DC电压输出第二DC电压，并且第二输出节点可以被配置为基于第一DC电压输出第三DC电压。 在第二模式期间，第一输出节点可以被配置为输出第二DC电压，并且第二输出节点可以被配置为输出AC电压，AC电压被第三DC电压偏移。

    EMISSION CONTROL APPARATUSES AND METHODS FOR A DISPLAY PANEL
    4.
    发明申请
    EMISSION CONTROL APPARATUSES AND METHODS FOR A DISPLAY PANEL 有权

    公开(公告)号：US20210118353A1

    公开(公告)日：2021-04-22

    申请号：US17088903

    申请日：2020-11-04

    Applicant: Apple Inc.

    Inventor： Kapil V. SAKARIYA ,  Tore NAUTA ,  Hopil BAE ,  Henry C. JEN

    IPC: G09G3/20 ,  G09G3/32

    Abstract: Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.

    TOUCH INDUCED FLICKER MITIGATION FOR VARIABLE REFRESH RATE DISPLAY
    6.
    发明申请
    TOUCH INDUCED FLICKER MITIGATION FOR VARIABLE REFRESH RATE DISPLAY 审中-公开

    公开(公告)号：US20180059868A1

    公开(公告)日：2018-03-01

    申请号：US15650770

    申请日：2017-07-14

    Applicant: Apple Inc.

    Inventor： Kingsuk BRAHMA ,  Jie Won RYU ,  Hopil BAE ,  Yafei BI

    IPC: G06F3/041 ,  G02F1/1333 ,  G06F3/044

    CPC classification number: G06F3/0418 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044 ,  G09G3/2022 ,  G09G5/003 ,  G09G2340/0435 ,  G09G2370/08

    Abstract: Touch induced flicker for variable refresh rate (VRR) displays can be reduced by adjusting one or more voltages. Synchronization of touch sensing operations after an immediate exit can introduce flicker issues into the VRR display. In some examples, the touched induced flicker can be reduced or eliminated by tuning the voltage on a common electrode (Vcom) to a tuning point that reduces a maximum error below a threshold, irrespective of refresh rate. In some examples, touch induced flicker can be reduced or eliminated by monitoring average Vcom, and when the change in average Vcom exceeds a threshold, Vcom can be adjusted to counteract the change in average Vcom due to the variable refresh rate and/or immediate exit. In some examples, touch induced flicker can be reduced or eliminated by applying a direct current (DC) pedestal to pixel gate lines during touch sensing scans.

    TOUCH SENSING UTILIZING INTEGRATED MICRO CIRCUITRY
    8.
    发明申请
    TOUCH SENSING UTILIZING INTEGRATED MICRO CIRCUITRY 有权

    公开(公告)号：US20210357063A1

    公开(公告)日：2021-11-18

    申请号：US17384415

    申请日：2021-07-23

    Applicant: Apple Inc.

    Inventor： Christian M. SAUER ,  Christoph H. KRAH ,  Derek K. SHAEFFER ,  Hasan AKYOL ,  Henry C. JEN ,  Hopil BAE ,  John T. WETHERELL ,  Thierry S. DIVEL ,  Xiang LU

    IPC: G06F3/041 ,  G06F3/044 ,  G09G3/32 ,  H01L27/15

    Abstract: An integrated touchscreen can include light emitting diodes or organic light emitting diodes (LEDs/OLEDs), display chiplets and touch chiplets disposed in a visible area of the integrated touch screen. For example, the LEDs/OLEDs, display chiplets and touch chiplets can be placed on a substrate by a micro-transfer tool. The integrated touchscreen can also include electrodes disposed in the visible area of the integrated touch screen. The electrodes can be capable of providing display functionality via the one or more display chiplets during display operation (e.g., operating as cathode terminals of the LEDs during the display operation) and capable of providing touch functionality via the touch chiplets during touch operation (e.g., touch node electrodes can be formed from groups of the electrodes and sensed). In some examples, the touch node electrodes can be formed and coupled to touch chiplets via the display chiplets.

    TOUCH SENSING UTILIZING INTEGRATED MICRO CIRCUITRY
    10.
    发明申请
    TOUCH SENSING UTILIZING INTEGRATED MICRO CIRCUITRY 审中-公开

    公开(公告)号：US20200033979A1

    公开(公告)日：2020-01-30

    申请号：US16517513

    申请日：2019-07-19

    Applicant: Apple Inc.

    Inventor： Christian M. SAUER ,  Christoph H. KRAH ,  Derek K. SHAEFFER ,  Hasan AKYOL ,  Henry C. JEN ,  Hopil BAE ,  John T. WETHERELL ,  Thierry S. DIVEL ,  Xiang LU

    IPC: G06F3/041 ,  G06F3/044 ,  G09G3/32 ,  H01L27/15

    Abstract: An integrated touchscreen can include light emitting diodes or organic light emitting diodes (LEDs/OLEDs), display chiplets and touch chiplets disposed in a visible area of the integrated touch screen. For example, the LEDs/OLEDs, display chiplets and touch chiplets can be placed on a substrate by a micro-transfer tool. The integrated touchscreen can also include electrodes disposed in the visible area of the integrated touch screen. The electrodes can be capable of providing display functionality via the one or more display chiplets during display operation (e.g., operating as cathode terminals of the LEDs during the display operation) and capable of providing touch functionality via the touch chiplets during touch operation (e.g., touch node electrodes can be formed from groups of the electrodes and sensed). In some examples, the touch node electrodes can be formed and coupled to touch chiplets via the display chiplets.

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