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    Electronic devices having displays with tilted anodes
    4.
    发明授权
    Electronic devices having displays with tilted anodes 有权

    公开(公告)号：US10937987B1

    公开(公告)日：2021-03-02

    申请号：US16428698

    申请日：2019-05-31

    申请人： Apple Inc.

    发明人： Jean-Pierre S. Guillou ,  Meng-Huan Ho ,  Ming Xu ,  Rui Liu ,  Shawn R. Gettemy ,  Yi Qiao

    IPC分类号： H01L51/52 ,  H01L51/00 ,  H01L27/32

    摘要： An electronic device may have a flexible organic light-emitting diode display layer. The edge of the flexible display layer may be bent. The display may have pixels formed from organic light-emitting diodes having anodes characterized by anode surface normals. For pixels in some regions of the display such as the bent edge of the display, the display may be characterized by a display surface normal for a pixel that differs from an anode surface normal for the anode of the organic light-emitting diode of that pixel. By tilting the anodes in this way, color shifts due to off-axis viewing of the pixels in the bend edge of the display can be minimized. If desired, tilted anodes may have multiple areas with different tilts. Sets of pixels with different anode tilts or other characteristics that differ may be supplied with common pixel data values.

    Self-emissive display with switchable retarder for high contrast
    6.
    发明授权
    Self-emissive display with switchable retarder for high contrast 有权

    公开(公告)号：US10576081B2

    公开(公告)日：2020-03-03

    申请号：US14986148

    申请日：2015-12-31

    申请人： Apple Inc.

    发明人： Shih Chang Chang ,  Cheng Chen ,  Chin-Wei Lin ,  Donghee Nam ,  Meng-Huan Ho ,  Minhyuk Choi ,  Rui Liu

    IPC分类号： G09G3/3208 ,  A61K31/513 ,  G09G3/36

    摘要： Systems and electronic displays with improved contrast even under bright-light conditions are provided. Such an electronic display may include a self-emissive pixel (e.g., OLED or μ-LED) with a corresponding liquid crystal switchable retarder pixel. A liquid crystal layer of the switchable retarder pixel may be tuned to an “on” state or an “off” state. In the “on” state, the switchable retarder pixel may allow outside light that enters the pixel to reflect back out of the pixel. This may add to the amount of light that appears to be emitted from that pixel. In the “off” state, the switchable retarder pixel may block the outside light that enters the pixel from reflecting back out of the pixel. This may reduce the amount of light that appears to be emitted from that pixel. Selectively controlling the switchable retarder pixels may allow for increased contrast even under bright-light conditions.

    Display stack with integrated photodetectors
    7.
    发明授权
    Display stack with integrated photodetectors 有权

    公开(公告)号：US11527582B1

    公开(公告)日：2022-12-13

    申请号：US17006708

    申请日：2020-08-28

    申请人： Apple Inc.

    发明人： Niva A. Ran ,  Aleksandr N. Polyakov ,  Lun Tsai ,  Meng-Huan Ho ,  Mohammad Yeke Yazdandoost

    IPC分类号： H01L27/28 ,  H01L27/32 ,  H01L27/30

    摘要： An electronic device includes a frame and a display stack. The frame defines a first part of an interior volume. The display stack includes a cover attached to the frame. The cover may define a second part of the interior volume. The display stack also includes an array of organic light-emitting diodes (OLEDs) including an array of emissive electroluminescent (EL) regions, and at least one organic photodetector (OPD) disposed between the cover and at least one emissive EL region in the array of emissive electroluminescent regions. The at least one emissive EL region emits light through the at least one OPD. In alternative embodiments, the OLEDs may be stacked on the OPDs, or the OLEDs and OPDs may be interspersed with each other instead of stacked.