公开(公告)号：US10535296B2

公开(公告)日：2020-01-14

申请号：US15576237

申请日：2016-05-27

Applicant: Apple Inc.

Inventor： Kapil V. Sakariya ,  Tore Nauta ,  Hopil Bae ,  Henry C. Jen ,  James E. Pedder ,  Sunggu Kang ,  Shingo Hatanaka ,  Xiang Lu ,  Mahdi Farrokh Baroughi ,  Hasan Akyol ,  Saif Choudhary ,  Ion Bita

IPC: G09G3/20 ,  G09G3/32

Abstract: Display panel redundancy schemes and methods of operation are described. In an embodiment, and display panel includes an array of drivers (e.g. microdrivers), each of which including multiple portions to independently receive control and pixel bits. In an embodiment, each driver portion is to control a group of redundant emission elements.

公开(公告)号：US20190279553A1

公开(公告)日：2019-09-12

申请号：US16334698

申请日：2017-09-13

Applicant: Apple Inc.

Inventor： Mohammad B. Vahid Far ,  Tore Nauta ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  Jun Li

IPC: G09G3/20 ,  G09G3/3233 ,  G06F3/041

Abstract: A display device may include pixels that display image data. The display device may also include a circuit that receives pixel data having a gray level for at least one pixel, such that the pixel data corresponds to a frame of the image data and the frame includes sub-frames. The pixel data causes the circuit to provide at least one current pulse to the at least one pixel according to a first order of the sub-frames. The circuit may also receive a second order of the sub-frames, such that the second order is mapped with respect to the first order, and at least one current pulse is provided to the at least one pixel according to the second order. As such, visual artifacts depicted on the display are reduced.

公开(公告)号：US20190088199A1

公开(公告)日：2019-03-21

申请号：US16132320

申请日：2018-09-14

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chengrui Le ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  David W. Lum ,  Adam Adjiwibawa ,  Chaohao Wang ,  Paolo Sacchetto ,  Wei H. Yao ,  Enkhamgalan Dorjgotov ,  Michael Slootsky ,  Giovanni Carbone ,  Derek K. Shaeffer ,  Henry C. Jen ,  Shingo Hatanaka ,  Hasan Akyol

IPC: G09G3/3233 ,  G09G3/3258

Abstract: An electronic device includes a display having a reference array that includes a first pixel. The display also includes a first emission power supply coupled to the first pixel. The display further includes an active array having a second pixel. The display also includes a second emission power supply coupled to the second pixel.

公开(公告)号：US20180083648A1

公开(公告)日：2018-03-22

申请号：US15697233

申请日：2017-09-06

Applicant: Apple Inc.

Inventor： Baris Cagdaser ,  Derek K. Shaeffer ,  Hopil Bae ,  Jesse Aaron Richmond ,  Jie Won Ryu ,  Kingsuk Brahma ,  Mohammad B. Vahid Far ,  Shingo Hatanaka ,  Yafei Bi ,  Yuichi Okuda

IPC: H03M1/78 ,  H03M1/76 ,  H03M1/74 ,  H03M1/68

CPC classification number: H03M1/785 ,  G09G2320/0276 ,  H03M1/682 ,  H03M1/747 ,  H03M1/765

Abstract: A device includes a resistor string that includes a plurality resistors with voltage taps disposed therebetween. The device may select one particular voltage tap of the plurality of voltage taps based on received gray level data for a pixel of a display. The device also includes a first amplifier that may be coupled to a first terminal end of the resistor string. The device additionally includes a second amplifier that may be coupled to a second terminal end of the resistor string, wherein the plurality of voltage taps may each supply a tap voltage derived from a voltage between the first amplifier and the second amplifier, wherein any tap amplifier of the device coupled to a voltage tap of the plurality of voltage taps provides a reference voltage thereto.

公开(公告)号：US20160275889A1

公开(公告)日：2016-09-22

申请号：US14864136

申请日：2015-09-24

Applicant: Apple Inc.

Inventor： Cheng-Ho Yu ,  Keitaro Yamashita ,  Ting-Kuo Chang ,  Yun Wang ,  Hopil Bae ,  Kingsuk Brahma

IPC: G09G3/36 ,  G06F3/041

CPC classification number: G09G3/3648 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/3677 ,  G09G2300/0452 ,  G09G2300/0871 ,  G09G2310/0289 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2354/00

Abstract: A touch screen display may include gate line driver circuitry coupled to a display pixel array. The display may be provided with intra-frame pausing (IFP) capabilities, where touch or other operations may be performed during one or more intra-frame blanking intervals. In one suitable arrangement, a gate driver may be operable in a high impedance mode, where the output of the gate driver is left floating during touch or IFP intervals. In another suitable arrangement, the gate driver may be operable in an IFP reduced stress mode, where a digital pass gate in the gate driver is deactivated during IFP intervals. In yet another suitable arrangement, the gate driver may be operable in an all-gate-high (AGH) power-down mode, where the output of each gate driver in the driver circuitry is driven high in parallel when the displayed is being powered off. These arrangements may be implemented in any suitable combination.

Abstract translation: 触摸屏显示器可以包括耦合到显示像素阵列的栅极线驱动器电路。 显示器可以具有帧内暂停（IFP）能力，其中可以在一个或多个帧内消隐间隔期间执行触摸或其它操作。 在一种合适的布置中，栅极驱动器可以以高阻抗模式工作，其中栅极驱动器的输出在触摸或IFP间隔期间保持悬空。 在另一种合适的布置中，栅极驱动器可以在IFP减小应力模式下操作，其中栅极驱动器中的数字通道在IFP间隔期间被去激活。 在另一种合适的布置中，栅极驱动器可以以全栅极高（AGH）掉电模式工作，其中当所显示的电源被断电时，驱动器电路中的每个栅极驱动器的输出并联驱动为高并行 。 这些布置可以以任何合适的组合来实现。

公开(公告)号：US20160071452A1

公开(公告)日：2016-03-10

申请号：US14794344

申请日：2015-07-08

Applicant: APPLE Inc.

Inventor： Hyunwoo Nho ,  Hopil Bae ,  Wei H. Yao

IPC: G09G3/20

CPC classification number: G09G3/3674 ,  G09G3/3614 ,  G09G2310/0262 ,  G09G2320/0219 ,  G09G2320/0223 ,  G09G2320/0257

Abstract: Devices and methods for reducing or eliminating image artifacts are provided. By way of example, a method of preventing an occurrence of an image artifact on a display panel may include generating a first gate signal to be supplied to a first gate of a first transistor, generating a second gate signal to be supplied to a second gate of a second transistor, and adjusting a falling edge rate of the first gate signal or a rising edge rate of the second gate signal to reduce a voltage drop associated with row pixels of the display panel. Adjusting the falling edge rate of the first gate signal or the rising edge rate of the second gate signal include decreasing the falling edge rate of the first gate signal or the rising edge rate of the second gate signal during a period of time in which the first gate signal falls.

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，防止在显示面板上出现图像伪影的方法可以包括产生要提供给第一晶体管的第一栅极的第一栅极信号，产生要提供给第二栅极的第二栅极信号 并且调整第一栅极信号的下降沿速率或第二栅极信号的上升沿速率以减小与显示面板的行像素相关联的电压降。 调整第一栅极信号的下降沿率或第二栅极信号的上升沿速率包括在第一栅极信号的下降沿率或第二栅极信号的上升沿速率在第一栅极信号的第一 门信号下降。

公开(公告)号：US09268433B2

公开(公告)日：2016-02-23

申请号：US13664086

申请日：2012-10-30

Applicant: APPLE INC.

Inventor： Ahmad Al-Dahle ,  Hopil Bae

IPC: G06F3/041 ,  G06F1/32 ,  G09G3/36

CPC classification number: G06F3/0416 ,  G06F1/3262 ,  G06F1/3265 ,  G09G3/3648 ,  G09G2330/021 ,  G09G2340/0435 ,  Y02D10/153

Abstract: Methods and devices employing circuitry for reducing power usage of a touch-sensitive display are provided. In one example, a method for reducing power usage of a touch-sensitive display may include receiving power for the display of an electronic device. The method may also include powering a touch subsystem and a display subsystem of the display. The method may include, in a standard display mode, receiving synchronization signals at a first rate. A frame of data is stored on pixels of the display subsystem between each synchronization signal. The method may also include, in a low power display mode, receiving synchronization signals at a second rate. The second rate is less than the first rate. The method may include detecting a touch of the display via the touch subsystem between each synchronization signal.

Abstract translation: 提供了采用用于减少触敏显示器的功率使用的电路的方法和装置。 在一个示例中，用于减少触敏显示器的功率使用的方法可以包括接收用于电子设备的显示的功率。 该方法还可以包括为触摸子系统和显示器的显示子系统供电。 该方法可以包括在标准显示模式下以第一速率接收同步信号。 在每个同步信号之间，将数据帧存储在显示子系统的像素上。 该方法还可以包括在低功率显示模式下以第二速率接收同步信号。 第二个比率低于第一个利率。 该方法可以包括在每个同步信号之间经由触摸子系统检测显示器的触摸。

公开(公告)号：US09190011B2

公开(公告)日：2015-11-17

申请号：US13654242

申请日：2012-10-17

Applicant: APPLE INC.

Inventor： Ahmad Al-Dahle ,  Hopil Bae ,  Sang Y. Youn ,  Yafei Bi ,  Wei H. Yao ,  David A. Stronks

IPC: G09G5/00 ,  G09G3/20

CPC classification number: G09G5/003 ,  G09G3/2092 ,  G09G2330/027 ,  G09G2330/06

Abstract: Methods and devices employing mura prevention circuitry, are provided. In one example, a method may include supplying a first voltage pathway between a common electrode driver and a common electrode of an electronic display device and supplying a second voltage pathway between the common electrode driver and ground. Mura prevention circuitry may be supplied that activates the first voltage pathway when the electronic display device is turned on and an activation gate signal is provided from a gate corresponding to the common electrode driver. Further, the mura prevention circuitry may activate the second voltage pathway when the electronic display device is turned off or no activation gate signal is provided from the gate corresponding to the common electrode driver.

Abstract translation: 提供了采用mura预防电路的方法和装置。 在一个示例中，方法可以包括在公共电极驱动器和电子显示装置的公共电极之间提供第一电压路径，并且在公共电极驱动器和地之间提供第二电压路径。 可以提供Mura防止电路，其在电子显示装置接通时激活第一电压通路，并且从对应于公共电极驱动器的门提供激活门信号。 此外，当电子显示装置关闭或从对应于公共电极驱动器的门提供激活栅极信号时，防护电路可以激活第二电压路径。

公开(公告)号：US20150169121A1

公开(公告)日：2015-06-18

申请号：US14256849

申请日：2014-04-18

Applicant: Apple Inc.

Inventor： Weijun Yao ,  Wei Hsin Yao ,  Yingxuan Li ,  Hopil Bae ,  Ahmad Al-Dahle

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/044

Abstract: Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on a separate layer dedicated to only touch hardware.

Abstract translation: 提供了集成触摸屏，包括由薄膜晶体管层的组合电路元件形成的驱动线和在滤色器层和修饰或产生光的材料层之间形成的感测线。 可以在触摸感测操作期间将TFT层中的公共电极（Vcom）组合在一起以形成驱动线。 感应线可以在专用于仅触摸硬件的单独的层上形成。

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。