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    Organic light emitting diode displays with reduced leakage current
    41.
    发明授权
    Organic light emitting diode displays with reduced leakage current 有权

    公开(公告)号：US09734756B2

    公开(公告)日：2017-08-15

    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 ,  G09G3/3233 ,  G09G3/3266

    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.

    Corrosion Resistant Test Lines
    42.
    发明申请
    Corrosion Resistant Test Lines 审中-公开

    公开(公告)号：US20170092711A1

    公开(公告)日：2017-03-30

    申请号：US15176836

    申请日：2016-06-08

    Applicant: Apple Inc.

    Inventor： Tsung-Ting Tsai ,  Chin-Wei Lin ,  Jae Won Choi ,  Young Bae Park

    IPC: H01L27/32

    CPC classification number: H01L27/3276 ,  H01L27/124

    Abstract: A display may have an array of pixels formed from thin-film transistor circuitry. The thin-film transistor circuitry may include thin-film layers of dielectric, semiconductor, and metal on a dielectric substrate. Test structures may be formed around the periphery of the substrate to facilitate testing of the thin-film circuitry during manufacturing. The test structures may include test pads that are coupled to the thin-film circuitry by test lines extending from the thin-film circuitry. Following testing, the outermost portions of the display and the test pads on these display portions may be removed by cutting the substrate along a substrate cut line. The test lines may be formed from parallel lines that are shorted together, semiconductor layers, multiple layers of conductive material, and other structures that resist corrosion along the cut line.

    Silicon and semiconducting oxide thin-film transistor displays
    43.
    发明授权
    Silicon and semiconducting oxide thin-film transistor displays 有权
    硅和半导体氧化物薄膜晶体管显示器

    公开(公告)号：US09543370B2

    公开(公告)日：2017-01-10

    申请号：US14494931

    申请日：2014-09-24

    Applicant: Apple Inc.

    Inventor： Tsung-Ting Tsai ,  Vasudha Gupta ,  Chin-Wei Lin

    IPC: H01L27/32 ,  H01L29/786 ,  H01L51/00

    CPC classification number: H01L27/3262 ,  H01L27/1225 ,  H01L27/3258 ,  H01L27/3265 ,  H01L27/3276 ,  H01L29/78651 ,  H01L29/78672 ,  H01L29/7869 ,  H01L51/0097 ,  H01L2251/5338 ,  Y02E10/549

    Abstract: An electronic device display may have an array of pixel circuits. Each pixel circuit may include an organic light-emitting diode and a drive transistor. Each drive transistor may be adjusted to control how much current flows through the organic light-emitting diode. Each pixel circuit may include one or more additional transistors such as switching transistors and a storage capacitor. Semiconducting oxide transistors and silicon transistors may be used in forming the transistors of the pixel circuits. The storage capacitors and the transistors may be formed using metal layers, semiconductor structures, and dielectric layers. Some of the layers may be removed along the edge of the display to facilitate bending. The dielectric layers may have a stepped profile that allows data lines in the array to be stepped down towards the surface of the substrate as the data lines extend into an inactive edge region.

    Abstract translation: 电子设备显示器可以具有像素电路阵列。 每个像素电路可以包括有机发光二极管和驱动晶体管。 可以调节每个驱动晶体管以控制流过有机发光二极管的电流量。 每个像素电路可以包括一个或多个附加晶体管，例如开关晶体管和存储电容器。 半导体氧化物晶体管和硅晶体管可以用于形成像素电路的晶体管。 存储电容器和晶体管可以使用金属层，半导体结构和电介质层形成。 一些层可以沿着显示器的边缘去除以便于弯曲。 电介质层可以具有阶梯形轮廓，当数据线延伸到无源边缘区域时，允许阵列中的数据线朝着衬底的表面逐步降低。

    Displays with overlapping light-emitting diodes and gate drivers
    45.
    发明授权
    Displays with overlapping light-emitting diodes and gate drivers 有权
    显示器具有重叠的发光二极管和栅极驱动器

    公开(公告)号：US09336709B2

    公开(公告)日：2016-05-10

    申请号：US14262363

    申请日：2014-04-25

    Applicant: Apple Inc.

    Inventor： Chin-Wei Lin ,  Shih-Chang Chang ,  Tsung-Ting Tsai

    IPC: G09G3/32 ,  H01L27/32

    CPC classification number: G09G3/3225 ,  G09G2310/0264 ,  H01L27/3248 ,  H01L27/326 ,  H01L27/3262 ,  H01L27/3276 ,  H01L2251/5315

    Abstract: An electronic device may be provided with a display. The display may be formed from an array of organic light-emitting diode display pixels. Each display pixel may have an organic light-emitting diode having an anode and a cathode and may have an associated pixel circuit for controlling the light-emitting diode. The anodes may be formed from patches of metal arranged in an array on the display. The display pixels may be controlled using data lines and gate lines. The gate lines may control thin-film transistors in the pixel circuits. Gate driver circuitry along the left and right edges of the display may supply signals to the gate lines. The pixel circuits may be located in the center of the display between the gate driver circuitry. Some of the anodes may overlap the pixel circuits and some of the anodes may overlap the gate driver circuitry.

    Abstract translation: 电子设备可以设置有显示器。 显示器可以由有机发光二极管显示像素的阵列形成。 每个显示像素可以具有具有阳极和阴极的有机发光二极管，并且可以具有用于控制发光二极管的相关联的像素电路。 阳极可以由布置在显示器上的阵列中的金属片形成。 可以使用数据线和栅极线来控制显示像素。 栅极线可以控制像素电路中的薄膜晶体管。 沿着显示器的左边缘和右边缘的栅极驱动器电路可以向栅极线提供信号。 像素电路可以位于栅极驱动器电路之间的显示器的中心。 一些阳极可能与像素电路重叠，并且一些阳极可能与栅极驱动器电路重叠。

    Devices with displays having transparent openings and transition regions
    49.
    发明授权
    Devices with displays having transparent openings and transition regions 有权

    公开(公告)号：US12185616B1

    公开(公告)日：2024-12-31

    申请号：US17840472

    申请日：2022-06-14

    Applicant: Apple Inc.

    Inventor： Ricardo A Peterson ,  Yuchi Che ,  Warren S Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Yi Qiao ,  Yue Cui ,  Jean-Pierre S Guillou ,  Shyuan Yang ,  Tsung-Ting Tsai

    IPC: H10K59/88 ,  H10K59/35

    Abstract: An electronic device may include a display and an optical sensor formed underneath the display. The display may have both a full pixel density region and a pixel removal region with a plurality of high-transmittance areas that overlap the optical sensor. To mitigate reflectance mismatch between the full pixel density region and the pixel removal region, the pixel removal region may include a transition region at one or more edges. In the transition region, one or more components may have a gradual density change between the full pixel density region and a central portion of the pixel removal region. Components that may have a changing density in the transition region include dummy thin-film transistor sub-pixels, dummy anodes, a cathode layer, and a touch sensor metal layer. The transition region may also include anodes that gradually change shape and/or size.

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