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公开(公告)号：US09317151B2
公开(公告)日：2016-04-19
申请号：US13747872
申请日：2013-01-23
Applicant: Apple Inc.
Inventor： Abbas Jamshidi-Roudbari , Cheng-Ho Yu , Shih Chang Chang , Ting-Kuo Chang
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044
Abstract: Gate driver circuitry that controls an array of display elements is described. The gate driver circuitry has gate drivers that apply a control pulse to each of a number of gate lines in sequence, from a previous gate line to a current gate line, during a frame interval in which the array of display elements is filled with pixel values. Each gate driver has a latch stage followed by an output stage. The output stage is coupled to drive a current gate line, and the latch stage is coupled to drive a) a first hold circuit that holds the current gate line at a predetermined voltage, and b) a second hold circuit that holds a previous gate line at a predetermined voltage. Other embodiments are also described and claimed.
Abstract translation: 描述了控制显示元件阵列的栅极驱动器电路。 栅极驱动器电路具有栅极驱动器，该栅极驱动器在其中显示元件阵列被填充有像素值的帧间隔期间，将序列中的每一条栅极线上的控制脉冲从先前的栅极线施加到当前栅极线 。 每个门驱动器都有一个锁存级，后跟一个输出级。 输出级耦合以驱动电流栅极线，并且锁存级耦合以驱动a）将电流栅极线保持在预定电压的第一保持电路，以及b）保持先前栅极线的第二保持电路 在预定电压下。 还描述和要求保护其他实施例。
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公开(公告)号：US20150015559A1
公开(公告)日：2015-01-15
申请号：US13937825
申请日：2013-07-09
Applicant: Apple Inc.
Inventor： Abbas Jamshidi-Roudbari , Cheng-Ho Yu , Hopil Bae , Shih Chang Chang , Ting-Kuo Chang
IPC: G09G3/36
CPC classification number: G09G3/3696 , G09G3/3688 , G09G2310/0245 , G09G2310/0297 , G09G2320/0204 , G09G2320/0266 , G09G2330/027
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20140225840A1
公开(公告)日：2014-08-14
申请号：US13767242
申请日：2013-02-14
Applicant: APPLE INC.
Inventor： Abbas Jamshidi-Roudbari , Cheng-Ho Yu , Ting-Kuo Chang , Shih Chang Chang
IPC: G06F3/041
CPC classification number: G06F3/044 , G06F3/0412
Abstract: A touchscreen system has a light transparent panel, a region of display elements below the panel, and a transparent conductor plate that overlays the region of display elements. The transparent conductor plate is made of a number of electrode segments. Touch driver circuits are positioned on the panel and in a border region thereof. Each touch driver circuit has a respective latch and a respective output stage. The output stage is coupled to a respective one of the electrode segments and has a signal input to receive a touch stimulus signal. The touch driver circuits may be operated in shift register fashion so that the touch stimulus signal is pulsed sequentially to the electrode segments. Other embodiments are also described and claimed.
Abstract translation: 触摸屏系统具有透光面板，面板下方的显示元件区域和覆盖显示元件区域的透明导体板。 透明导体板由多个电极段构成。 触摸驱动器电路位于面板上及其边界区域中。 每个触摸驱动器电路具有相应的锁存器和相应的输出级。 输出级耦合到相应的一个电极段，并且具有用于接收触摸激励信号的信号输入。 触摸驱动器电路可以以移位寄存器方式操作，使得触摸激励信号顺序地脉冲到电极段。 还描述和要求保护其他实施例。
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公开(公告)号：US20140232626A1
公开(公告)日：2014-08-21
申请号：US14157858
申请日：2014-01-17
Applicant: Apple Inc.
Inventor： Abbas Jamshidi-Roudbari , Ting-Kuo Chang , Hopil Bae , Cheng-Ho Yu , Shih Chang Chang
IPC: G09G3/36
CPC classification number: G09G3/3688 , G09G2310/027 , G09G2310/0297
Abstract: An electronic display system has a light transmissive panel, a region of display elements on the panel, and source lines coupled to the display elements. A demultiplexor circuit has multiple groups of pass gates. Each pass gate has a pair of complimentary on-panel transistors, and the signal outputs of each group are connected to a respective group of the source lines. A display driver integrated circuit (IC) receives video data and timing control signals. A signal input of each group of pass gates is connected to a respective output pin of the driver IC. The display driver IC provides digital timing control signals to control the pass gates of the demultiplexor circuit. Other embodiments are also described.
Abstract translation: 电子显示系统具有透光面板，面板上的显示元件区域和耦合到显示元件的源极线。 解复用器电路具有多组通路。 每个通孔具有一对互补的面板上的晶体管，并且每个组的信号输出连接到相应的源极线组。 显示驱动器集成电路（IC）接收视频数据和定时控制信号。 每组通路门的信号输入端连接到驱动器IC的相应输出引脚。 显示驱动器IC提供数字定时控制信号以控制解复用器电路的通过门。 还描述了其它实施例。
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公开(公告)号：US20130300681A1
公开(公告)日：2013-11-14
申请号：US13747872
申请日：2013-01-23
Applicant: APPLE INC.
Inventor： Abbas Jamshidi-Roudbari , Cheng-Ho Yu , Shih Chang Chang , Ting-Kuo Chang
IPC: G06F3/041
CPC classification number: G06F3/0412 , G06F3/0416 , G06F3/044
Abstract: Gate driver circuitry that controls an array of display elements is described. The gate driver circuitry has gate drivers that apply a control pulse to each of a number of gate lines in sequence, from a previous gate line to a current gate line, during a frame interval in which the array of display elements is filled with pixel values. Each gate driver has a latch stage followed by an output stage. The output stage is coupled to drive a current gate line, and the latch stage is coupled to drive a) a first hold circuit that holds the current gate line at a predetermined voltage, and b) a second hold circuit that holds a previous gate line at a predetermined voltage. Other embodiments are also described and claimed.
Abstract translation: 描述了控制显示元件阵列的栅极驱动器电路。 栅极驱动器电路具有栅极驱动器，该栅极驱动器在其中显示元件阵列被填充有像素值的帧间隔期间，将序列中的每一条栅极线上的控制脉冲从先前的栅极线施加到当前栅极线 。 每个门驱动器都有一个锁存级，后跟一个输出级。 输出级耦合以驱动电流栅极线，并且锁存级耦合以驱动a）将电流栅极线保持在预定电压的第一保持电路，以及b）保持先前栅极线的第二保持电路 在预定电压下。 还描述和要求保护其他实施例。
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Patent Agency Ranking
公开(公告)号：US10048788B2
公开(公告)日：2018-08-14
申请号：US15065284
申请日：2016-03-09
Applicant: Apple Inc.
Inventor： Yu Cheng Chen , Abbas Jamshidi-Roudbari , Hiroshi Osawa , Shang-Chih Lin , Shih-Chang Chang , Shin-Hung Yeh , Ting-Kuo Chang , Majid Gharghi , Keitaro Yamashita
IPC: G06F3/041 , G02F1/1333 , G02F1/1343 , G06F3/044
Abstract: Improvement of visual uniformity of an integrated touch screen display is provided. A touch screen can include common electrodes separated by gaps in a Vcom layer. To improve visual non-uniformity in the display resulting from the gaps, a first set of semi-transparent dummy features (primary-dummy features) can be formed on a second layer at the locations of the gaps, and a second set of dummy features (supplementary-dummy features) can also be formed on the second layer or another layer to mitigate low spatial resolution of the primary-dummy features and/or non-uniform spacing of the primary-dummy features. In some examples, holes or slits can be formed in the Vcom layer at areas of the supplementary-dummy features to further improve visual uniformity.
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公开(公告)号：US09535544B2
公开(公告)日：2017-01-03
申请号：US13907698
申请日：2013-05-31
Applicant: Apple Inc.
Inventor： Marduke Yousefpor , Taif Ahmed Syed , Ahmad Al-Dahle , Kevin J. White , Abbas Jamshidi-Roudbari , Stephen S. Poon
CPC classification number: G06F3/044 , G06F3/0412 , G06F2203/04107
Abstract: A touch screen to reduce touch pixel coupling. In some examples, the touch screen can include a first display pixel and a second display pixel in a row of display pixels, where the first display pixel can be configurable to be decoupled from the second display pixel during at least a touch sensing phase of the touch screen. In some examples, the touch screen can include a display pixel having a first and a second transistor, where the second transistor can be electrically connected to a gate terminal of the first transistor, and can be diode-connected. In some examples, the touch screen can include two display pixels, each display pixel having two transistors, where two of the transistors can be electrically connected to a first gate line, and the remaining two transistors can be individually electrically connected to a second and third gate line, respectively.
Abstract translation: 触摸屏可以减少触摸像素耦合。 在一些示例中，触摸屏可以包括一排显示像素中的第一显示像素和第二显示像素，其中第一显示像素可以被配置为在至少一个触摸感测阶段期间与第二显示像素解耦 触摸屏。 在一些示例中，触摸屏可以包括具有第一和第二晶体管的显示像素，其中第二晶体管可以电连接到第一晶体管的栅极端子，并且可以二极管连接。 在一些示例中，触摸屏可以包括两个显示像素，每个显示像素具有两个晶体管，其中两个晶体管可以电连接到第一栅极线，并且剩余的两个晶体管可以单独地电连接到第二和第三晶体管 门线。
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8.发明申请公开(公告)号：US20160094215A1
公开(公告)日：2016-03-31
申请号：US14502883
申请日：2014-09-30
Applicant: APPLE INC.
Inventor： Ting-Kuo Chang , Abbas Jamshidi-Roudbari , Shin-Hung Yeh
CPC classification number: H03K17/56 , G09G3/3677
Abstract: A gate drive circuit may include a latch circuit, a first transmission gate, and a second transmission gate. The first transmission gate and the second transmission gate may both be directly coupled to the latch circuit and may be directly coupled to a first gate line and a second gate line, respectively. The latch circuit may receive an electrical signal from a third gate line adjacent to the second gate line, such that the electrical signal is configured to reset a state of the latch circuit.
Abstract translation: 栅极驱动电路可以包括锁存电路，第一传输门和第二传输门。 第一传输门和第二传输门都可以直接耦合到锁存电路，并且可以分别直接耦合到第一栅极线和第二栅极线。 锁存电路可以从与第二栅极线相邻的第三栅极线接收电信号，使得电信号被配置为复位锁存电路的状态。
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公开(公告)号：US09214127B2
公开(公告)日：2015-12-15
申请号：US13937825
申请日：2013-07-09
Applicant: APPLE INC.
Inventor： Abbas Jamshidi-Roudbari , Cheng-Ho Yu , Hopil Bae , Shih Chang Chang , Ting-Kuo Chang
CPC classification number: G09G3/3696 , G09G3/3688 , G09G2310/0245 , G09G2310/0297 , G09G2320/0204 , G09G2320/0266 , G09G2330/027
Abstract: 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.
Abstract translation: 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，从而防止偏置电压在像素中引起显示伪影。
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10.发明申请公开(公告)号：US20150206493A1
公开(公告)日：2015-07-23
申请号：US14160230
申请日：2014-01-21
Applicant: APPLE INC.
Inventor： Cheng-Ho Yu , Ting-Kuo Chang , Abbas Jamshidi-Roudbari , Shih Chang Chang
CPC classification number: G09G3/3696 , G09G2300/0426 , G09G2300/043 , G09G2320/02
Abstract: Devices and methods for reducing or eliminating image artifacts are provided. By way of example, a display panel includes row common voltage (VCOM) electrodes each having a first width. The row VCOM electrodes extend along a first direction of the display panel. The display panel also includes column VCOM electrodes each having a second width. The column VCOM electrodes extend along a second direction of the display panel perpendicular to the first direction. The second width of the column VCOM electrodes may be substantially less than the first width of the row VCOM electrodes to increase a resistance of the column VCOM electrodes. By increasing the resistance of the column VCOM electrodes, image artifacts on the display panel may be prevented or eliminated.
Abstract translation: 提供了用于减少或消除图像伪像的设备和方法。 作为示例，显示面板包括各自具有第一宽度的行公共电压（VCOM）电极。 行VCOM电极沿着显示面板的第一方向延伸。 显示面板还包括各自具有第二宽度的列VCOM电极。 列VCOM电极沿垂直于第一方向的显示面板的第二方向延伸。 列VCOM电极的第二宽度可以基本上小于行VCOM电极的第一宽度，以增加列VCOM电极的电阻。 通过增加柱VCOM电极的电阻，可以防止或消除显示面板上的图像伪影。
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