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    Organic Light Emitting Diode Displays with Improved Driver Circuitry
    71.
    发明申请
    Organic Light Emitting Diode Displays with Improved Driver Circuitry 审中-公开
    有机发光二极管显示器与改进的驱动电路

    公开(公告)号：US20150109279A1

    公开(公告)日：2015-04-23

    申请号：US14504278

    申请日：2014-10-01

    Applicant: Apple Inc.

    Inventor： Vasudha Gupta ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Sang Y. Youn ,  Young Bae Park ,  Chin-Wei Lin

    IPC: G09G3/32

    CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286

    Abstract: An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage.

    Abstract translation: 电子设备可以设置有有机发光二极管显示器。 显示器可以包括行驱动器电路，其在输出端提供发射控制信号以显示像素。 发射控制信号可以启用或禁止像素的光发射。 行驱动器电路可以包括自举电容器，其存储用于在用于在电源电压以上的上拉晶体管的中间节点处升高栅极信号的电荷。 行驱动器电路可以包括耦合到中间节点的下拉晶体管。 下拉晶体管的源极端子可以耦合到输出端子，或者下拉晶体管可以与下拉晶体管堆叠以减少泄漏电流。 电荷泵电路可以耦合到中间节点，以确保中间节点保持在高于电源电压的电压。

    Organic Light Emitting Diode Displays with Improved Driver Circuitry
    72.
    发明申请
    Organic Light Emitting Diode Displays with Improved Driver Circuitry 有权

    公开(公告)号：US20150109276A1

    公开(公告)日：2015-04-23

    申请号：US14315783

    申请日：2014-06-26

    Applicant: Apple Inc.

    Inventor： Vasudha Gupta ,  Tsung-Ting Tsai ,  Jae Won Choi ,  Sang Y. Youn ,  Young Bae Park

    IPC: G09G3/32

    CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286

    Abstract: An electronic device may be provided with an organic light-emitting diode display. The display may include row driver circuitry that provides an emission control signal at an output terminal to display pixels. The emission control signals may enable or disable light emission by the pixels. The row driver circuitry may include a bootstrapping capacitor that stores charge for boosting a gate signal at an intermediate node for a pull-up transistor above a power supply voltage. The row driver circuitry may include a pull-down transistor coupled to the intermediate node. The source terminal of the pull-down transistor may be coupled to the output terminal or an additional pull-down transistor may be stacked with the pull-down transistor to reduce leakage current. Charge pump circuitry may be coupled to the intermediate node to ensure that the intermediate node is maintained at a voltage above the power supply voltage.

    Organic Light-Emitting Diode Displays With Semiconducting-Oxide and Silicon Thin-Film Transistors
    73.
    发明申请
    Organic Light-Emitting Diode Displays With Semiconducting-Oxide and Silicon Thin-Film Transistors 有权
    具有半导体氧化物和硅薄膜晶体管的有机发光二极管显示器

    公开(公告)号：US20150053935A1

    公开(公告)日：2015-02-26

    申请号：US14229232

    申请日：2014-03-28

    Applicant: Apple Inc.

    Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

    IPC: H01L27/32 ,  H01L27/12

    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。

    Displays With Silicon and Semiconducting Oxide Thin-Film Transistors
    77.
    发明申请
    Displays With Silicon and Semiconducting Oxide Thin-Film Transistors 审中-公开

    公开(公告)号：US20200335528A1

    公开(公告)日：2020-10-22

    申请号：US16917601

    申请日：2020-06-30

    Applicant: Apple Inc.

    Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

    IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32

    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.

    Organic Light-Emitting Diode Display with External Compensation and Anode Reset
    78.
    发明申请
    Organic Light-Emitting Diode Display with External Compensation and Anode Reset 审中-公开

    公开(公告)号：US20200312234A1

    公开(公告)日：2020-10-01

    申请号：US16859272

    申请日：2020-04-27

    Applicant: Apple Inc.

    Inventor： Chin-Wei Lin ,  Shinya Ono ,  Vasudha Gupta

    IPC: G09G3/325 ,  G09G3/3258 ,  G09G3/3291 ,  G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3275

    Abstract: A display may include an array of organic light-emitting diode display pixels having transistors characterized by threshold voltages subject to transistor variations. Compensation circuitry may be used to measure a transistor threshold voltage for a pixel. The threshold voltage may be sampled by controlling the pixel to sample the threshold voltage onto a capacitor at the pixel. The pixel may include at least one semiconducting-oxide transistor, silicon transistors, and a light-emitting diode. The diode may be coupled to a data line that can be used for both data loading and compensation sensing operations. Reset operations may be performed after data programming and before emission to reset the anode voltage for the diode.

    Displays with silicon and semiconducting oxide thin-film transistors
    79.
    发明授权
    Displays with silicon and semiconducting oxide thin-film transistors 有权

    公开(公告)号：US10741588B2

    公开(公告)日：2020-08-11

    申请号：US16678599

    申请日：2019-11-08

    Applicant: Apple Inc.

    Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

    IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32 ,  G02F1/1345 ,  H01L29/786

    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.

    Displays With Silicon and Semiconducting Oxide Thin-Film Transistors
    80.
    发明申请
    Displays With Silicon and Semiconducting Oxide Thin-Film Transistors 审中-公开

    公开(公告)号：US20200075636A1

    公开(公告)日：2020-03-05

    申请号：US16678599

    申请日：2019-11-08

    Applicant: Apple Inc.

    Inventor： Vasudha Gupta ,  Jae Won Choi ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Young Bae Park

    IPC: H01L27/12 ,  H01L27/32 ,  G02F1/1368 ,  G02F1/1362

    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.

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