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    Light-emitting diode displays
    3.
    发明授权
    Light-emitting diode displays 有权

    公开(公告)号：US11233113B2

    公开(公告)日：2022-01-25

    申请号：US16826521

    申请日：2020-03-23

    Applicant: Apple Inc.

    Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

    IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3266 ,  G06F3/044

    Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

    Display driver circuitry for liquid crystal displays with semiconducting-oxide thin-film transistors
    6.
    发明授权
    Display driver circuitry for liquid crystal displays with semiconducting-oxide thin-film transistors 有权
    用半导体氧化物薄膜晶体管显示液晶显示器的驱动电路

    公开(公告)号：US09412799B2

    公开(公告)日：2016-08-09

    申请号：US14228098

    申请日：2014-03-27

    Applicant: Apple Inc.

    Inventor： Shih Chang Chang ,  Ming-Chin Hung ,  Cheng-Ho Yu ,  Ting-Kuo Chang ,  Kyung-Wook Kim ,  Chun-Yao Huang ,  Szu-Hsien Lee ,  Yu-Cheng Chen ,  Hiroshi Osawa

    IPC: G06F3/038 ,  H01L27/32 ,  H01L27/12 ,  G09G3/36 ,  G02F1/1368 ,  G09G3/32 ,  G02F1/1362

    CPC classification number: H01L27/3262 ,  G02F1/13454 ,  G02F1/13624 ,  G02F1/1368 ,  G02F2001/13685 ,  G02F2202/104 ,  G09G3/3225 ,  G09G3/3611 ,  G09G3/3677 ,  G09G2320/043 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/1251 ,  H01L27/1255

    Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.

    Abstract translation: 电子设备可以包括在基板上具有显示像素阵列的显示器。 显示像素可以是液晶显示器中的有机发光二极管显示像素或显示像素。 在有机发光二极管显示器中，可以形成包括半导体氧化物薄膜晶体管，硅薄膜晶体管和电容器结构的混合薄膜晶体管结构。 电容器结构可以与半导体氧化物薄膜晶体管重叠。 有机发光二极管显示像素可以具有氧化物和硅晶体管的组合。 在液晶显示器中，显示驱动器电路可以包括硅薄膜晶体管电路，显示像素可以基于氧化物薄膜晶体管。 可以在形成硅晶体管栅极和氧化物晶体管栅极中使用单层或两层不同的栅极金属层。 硅晶体管可以具有与浮动栅极结构重叠的栅极。

    Liquid crystal display using depletion-mode transistors
    7.
    发明授权
    Liquid crystal display using depletion-mode transistors 有权
    使用耗尽型晶体管的液晶显示器

    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

    IPC: G09G5/00 ,  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，从而防止偏置电压在像素中引起显示伪影。

    DEVICES AND METHODS FOR REDUCING OR ELIMINATING MURA ARTIFACT
    8.
    发明申请
    DEVICES AND METHODS FOR REDUCING OR ELIMINATING MURA ARTIFACT 审中-公开
    用于减少或消除MURA ARTIFACT的装置和方法

    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

    IPC: G09G3/36 ,  G09G3/32

    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。

    DISPLAY INTEGRATED PRESSURE SENSOR
    9.
    发明申请
    DISPLAY INTEGRATED PRESSURE SENSOR 审中-公开
    显示一体式压力传感器

    公开(公告)号：US20140247239A1

    公开(公告)日：2014-09-04

    申请号：US13784509

    申请日：2013-03-04

    Applicant: APPLE INC.

    Inventor： Abbas JAMSHIDI-ROUDBARI ,  Shih Chang Chang ,  Cheng-Ho Yu ,  Ting-Kuo Chang

    IPC: G06F3/041

    CPC classification number: G06F3/0414 ,  G06F3/044 ,  G06F2203/04103 ,  G06F2203/04105 ,  G06F2203/04112

    Abstract: A touch sensitive device that can detect the amount of pressure being applied to a touch screen from a user or other external object is provided. A spacer of the touch screen can be coated with a layer of conductive material and the change in capacitance between the spacer and various circuit elements of the touch screen can be measured. The change in capacitance can be correlated to the amount of pressure being applied to the touch screen, thus providing a method to determine the pressure being applied. During operation of the device, the system can time multiplex touch, display and pressure sensing operations so as to take advantage of an integrated touch and display architecture.

    Abstract translation: 提供了可以检测从用户或其他外部对象施加到触摸屏的压力量的触敏设备。 触摸屏的间隔物可以涂覆有导电材料层，并且可以测量间隔物与触摸屏的各种电路元件之间的电容变化。 电容的变化可以与施加到触摸屏的压力的量相关，从而提供一种确定所施加的压力的方法。 在设备运行期间，系统可以对多路触摸，显示和压力感测操作进行定时复用，以利用集成的触摸和显示架构。

    Light-emitting diode displays
    10.
    发明授权
    Light-emitting diode displays 有权

    公开(公告)号：US12207512B2

    公开(公告)日：2025-01-21

    申请号：US18513132

    申请日：2023-11-17

    Applicant: Apple Inc.

    Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

    IPC: H10K59/131 ,  G06F3/044 ,  G09G3/3233 ,  G09G3/3266 ,  H10K59/10 ,  H10K59/40 ,  H10K59/88

    Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

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