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    Displays with silicon and semiconducting oxide thin-film transistors
    1.
    发明授权
    Displays with silicon and semiconducting oxide thin-film transistors 有权

    公开(公告)号：US10998344B2

    公开(公告)日：2021-05-04

    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: G02F1/1362 ,  H01L27/12 ,  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.

    Display with embedded components and subpixel windows
    3.
    发明授权
    Display with embedded components and subpixel windows 有权

    公开(公告)号：US10163984B1

    公开(公告)日：2018-12-25

    申请号：US15263231

    申请日：2016-09-12

    Applicant: Apple Inc.

    Inventor： Meng-Huan Ho ,  Minhyuk Choi ,  Chin-Wei Lin ,  Shih Chang Chang ,  Jae Won Choi ,  Jun Jiang ,  Rui Liu ,  Cheng Chen

    IPC: H01L27/32 ,  G06K9/00

    Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode. The organic light-emitting diodes may each have an anode that is coupled to a thin-film transistor pixel circuit for controlling the anode. Transparent windows may be formed in the display. The windows may be formed by replacing subpixels in some of the pixels with transparent windows. When subpixels are replaced by transparent windows, adjacent subpixels may be overdriven to compensate for lost light from the replaced subpixels. Adjacent subpixels may also be enlarged to help compensate for lost light. An array of electrical components such as an array of light sensors may be aligned with the transparent windows and may be used to measure light passing through the transparent windows.

    Flexible displays with strengthened pad area
    6.
    发明授权
    Flexible displays with strengthened pad area 有权

    公开(公告)号：US09660004B2

    公开(公告)日：2017-05-23

    申请号：US14497086

    申请日：2014-09-25

    Applicant: Apple Inc.

    Inventor： Da Yu ,  Jae Won Choi ,  Sang Ha Kim ,  Vasudha Gupta ,  Young Bae Park

    IPC: H01L51/56 ,  H01L27/32 ,  H01L51/52

    CPC classification number: H01L27/3244 ,  H01L27/3276 ,  H01L51/5237 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/56 ,  H01L2251/5338

    Abstract: An electronic device may have a flexible display with portions that can be bent. The display may include an array of display pixels in an active area. Contact pads may be formed in an inactive area of the display. Display circuitry in the active area may exhibit a given stack height, whereas display circuitry in the inactive area may exhibit a stack height that is less than the given stack height. In particular, the contact pads may be formed directly on a multi-buffer layer that sits directly on a flexible display substrate. Passivation material may be selectively formed only at the edges of the contact pad on the multi-buffer layer. The multi-buffer layer may be formed at a distance from the edge of the flexible display substrate to minimize cracking in the multi-buffer layer.

    Organic light-emitting diode display with reduced lateral leakage
    7.
    发明授权
    Organic light-emitting diode display with reduced lateral leakage 有权
    有机发光二极管显示屏具有减少的横向泄漏

    公开(公告)号：US09542892B2

    公开(公告)日：2017-01-10

    申请号：US14747719

    申请日：2015-06-23

    Applicant: Apple Inc.

    Inventor： Jae Won Choi ,  John Z. Zhong ,  Kwang Ohk Cheon ,  Shih Chang Chang ,  Young Bae Park

    IPC: G09G3/32 ,  H01L51/50 ,  H01L27/32

    CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0209 ,  G09G2320/043 ,  H01L27/3276 ,  H01L51/5088

    Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode that emits light under control of a drive transistor. The organic light-emitting diodes may have a common cathode layer, a common electron layer, individual red, green, and blue emissive layers, a common hole layer, and individual anodes. The hole layer may have a hole injection layer stacked with a hole transport layer. Pixel circuits for controlling the diodes may be formed from a layer of thin-film transistor circuitry on a substrate. A planarization layer may cover the thin-film transistor layer. Lateral leakage current between adjacent diodes can be blocked by shorting the common hole layer to a metal line such as a bias electrode that is separate from the anodes. The metal line may be laterally interposed between adjacent pixels and may be formed on the planarization layer or embedded within the planarization layer.

    Abstract translation: 显示器可以具有像素阵列。 每个像素可以具有在驱动晶体管的控制下发光的发光二极管。 有机发光二极管可以具有公共阴极层，公共电子层，单独的红色，绿色和蓝色发射层，公共空穴层和单个阳极。 空穴层可以具有层叠有空穴传输层的空穴注入层。 用于控制二极管的像素电路可以由衬底上的薄膜晶体管电路层形成。 平坦化层可以覆盖薄膜晶体管层。 可以通过将公共空穴层短路到诸如与阳极分离的偏置电极的金属线来阻止相邻二极管之间的横向漏电流。 金属线可以横向插入相邻像素之间，并且可以形成在平坦化层上或嵌入在平坦化层内。

    Organic light-emitting diode display with enhanced aperture ratio
    8.
    发明授权
    Organic light-emitting diode display with enhanced aperture ratio 有权
    有机发光二极管显示屏具有增强的孔径比

    公开(公告)号：US09472605B2

    公开(公告)日：2016-10-18

    申请号：US14543088

    申请日：2014-11-17

    Applicant: Apple Inc.

    Inventor： Chin-Wei Lin ,  Jae Won Choi ,  MinKyu Kim ,  Shih Chang Chang ,  Tsung-Ting Tsai ,  Vasudha Gupta ,  Young Bae Park

    IPC: H01L27/32

    CPC classification number: H01L27/3265 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3272 ,  H01L27/3276

    Abstract: An organic light-emitting diode display may have an array of pixels. Each pixel may have an organic light-emitting diode with an anode and cathode. The anodes may be formed from a patterned layer of metal. Thin-film transistor circuitry in the pixels may include transistors such as drive transistors and switching transistors. Data lines may supply data signals to the pixels and horizontal control lines may supply control signals to the gates of the transistors. A switching transistor may be coupled between a voltage initialization line and each anode. The voltage initialization lines and capacitor structures in the thin-film transistor circuitry may be formed using a layer of metal that is different than the layer of metal that forms the anodes.

    Abstract translation: 有机发光二极管显示器可以具有像素阵列。 每个像素可以具有带阳极和阴极的有机发光二极管。 阳极可以由图案化的金属层形成。 像素中的薄膜晶体管电路可以包括诸如驱动晶体管和开关晶体管的晶体管。 数据线可以向像素提供数据信号，并且水平控制线可以向晶体管的栅极提供控制信号。 开关晶体管可以耦合在电压初始化线和每个阳极之间。 可以使用与形成阳极的金属层不同的金属层来形成薄膜晶体管电路中的电压初始化线和电容器结构。

    Organic light-emitting diode display with bottom shields
    9.
    发明授权
    Organic light-emitting diode display with bottom shields 有权
    带底屏的有机发光二极管显示屏

    公开(公告)号：US09337247B2

    公开(公告)日：2016-05-10

    申请号：US14488725

    申请日：2014-09-17

    Applicant: Apple Inc.

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

    IPC: H01L31/20 ,  H01L27/32 ,  H01L29/786

    CPC classification number: H01L27/3272 ,  H01L27/3262 ,  H01L29/78603 ,  H01L29/78606 ,  H01L29/78666 ,  H01L29/78675 ,  H01L29/7869 ,  H01L2924/0002 ,  H01L2924/00

    Abstract: A display may have an array of organic light-emitting diode display pixels. Each display pixel may have a light-emitting diode that emits light under control of a drive transistor. Each display pixel may also have control transistors for compensating and programming operations. The array of display pixels may have rows and columns. Row lines may be used to apply row control signals to rows of the display pixels. Column lines (data lines) may be used to apply display data and other signals to respective columns of display pixels. A bottom conductive shielding structure may be formed below each drive transistor. The bottom conductive shielding structure may serve to shield the drive transistor from any electric field generated from the adjacent row and column lines. The bottom conductive shielding structure may be electrically floating or coupled to a power supply line.

    Abstract translation: 显示器可以具有有机发光二极管显示像素阵列。 每个显示像素可以具有在驱动晶体管的控制下发光的发光二极管。 每个显示像素还可以具有用于补偿和编程操作的控制晶体管。 显示像素阵列可能有行和列。 行行可用于将行控制信号应用于显示像素的行。 列线（数据线）可用于将显示数据和其他信号应用于显示像素的相应列。 可以在每个驱动晶体管的下方形成底部导电屏蔽结构。 底部导电屏蔽结构可以用于屏蔽来自相邻行和列线产生的任何电场的驱动晶体管。 底部导电屏蔽结构可以电浮动或耦合到电源线。

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