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    Reducing Border Width Around a Hole in Display Active Area
    93.
    发明申请
    Reducing Border Width Around a Hole in Display Active Area 有权

    公开(公告)号：US20210305350A1

    公开(公告)日：2021-09-30

    申请号：US17145815

    申请日：2021-01-11

    Applicant: Apple Inc.

    Inventor： Warren S. Rieutort-Louis ,  Abbas Jamshidi Roudbari ,  Yuchi Che ,  Tsung-Ting Tsai ,  Jiun-Jye Chang ,  Shih Chang Chang ,  Ting-Kuo Chang

    IPC: H01L27/32 ,  G06F3/041 ,  G09G3/3225

    Abstract: An electronic device may include a display having display pixels formed in an active area of the display. The display further includes display driver circuitry for driving gate lines that are routed across the display. A hole such as a through hole, optical window, or other inactive region may be formed within the active area of the display. Multiple gate lines carrying the same signal may be merged together prior to being routed around the hole to help minimize the routing line congestion around the border of the hole. Dummy circuits may be coupled to the merged segment portion to help increase the parasitic loading on the merged segments. The hole may have a tapered shape to help maximize the size of the active area. The hole may have an asymmetric shape to accommodate multiple sub-display sensor components.

    Displays with Gate Driver Circuitry Having Shared Register Circuits
    94.
    发明申请
    Displays with Gate Driver Circuitry Having Shared Register Circuits 有权

    公开(公告)号：US20210035499A1

    公开(公告)日：2021-02-04

    申请号：US16828052

    申请日：2020-03-24

    Applicant: Apple Inc.

    Inventor： Chuang Qian ,  Tsung-Ting Tsai ,  Shyuan Yang ,  Cheng-Chih Hsieh ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang ,  Shih-Chang Chang

    IPC: G09G3/3233 ,  G09G3/3266 ,  G11C19/28 ,  G09G3/3275

    Abstract: Electronic devices may include displays having organic light-emitting diode pixels, display driver circuitry, and gate driver circuitry. To reduce the amount of space occupied in the inactive area of a display by the gate driver circuitry, one or more of the shift registers in the gate driver circuitry may include register circuits that are shared by multiple rows of pixels. Different drivers may use different clock frequencies to ensure synchronous operation of the display even when some register circuits share pixel rows. For increased flexibility in the arrangement of the register circuits in the shift registers, one or more of the shift registers may be split across the active area of the display. In some cases, one of the emission drivers may be omitted from the gate driver circuitry and a single emission driver may provide multiple emission control signals for the pixels.

    Narrow border touch screen
    95.
    发明授权
    Narrow border touch screen 有权

    公开(公告)号：US10852876B2

    公开(公告)日：2020-12-01

    申请号：US15313942

    申请日：2014-09-23

    Applicant: Apple Inc.

    Inventor： Abbas Jamshidi-Roudbari ,  Cheng-Ho Yu ,  Shih-Chang Chang ,  Ting-Kuo Chang

    IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044

    Abstract: A touch screen is disclosed that includes conductive elements in a display area and connecting traces for routing the conductive elements to other locations. The connecting traces can be routed underneath or over existing opaque structures in the display area, instead of in border areas adjacent to the display area, to minimize the effect of the connecting traces on the display aperture ratio. The lengths and/or widths of these connecting traces as well as the number of parallel connecting traces used to connect to a particular element can be selected to balance the load on the drive and/or sense circuitry and on display pixels caused by the connecting traces.

    In-cell touch for LED
    96.
    发明授权
    In-cell touch for LED 有权

    公开(公告)号：US10809847B2

    公开(公告)日：2020-10-20

    申请号：US16030654

    申请日：2018-07-09

    Applicant: Apple Inc.

    Inventor： Vasudha Gupta ,  Shih Chang Chang ,  Young-Bae Park ,  Ting-Kuo Chang

    IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/34 ,  H01L27/32

    Abstract: A touch screen having touch circuitry integrated into a display pixel stackup. The touch screen can include a transistor layer, an LED layer and a first layer. The first layer can operate as an LED cathode during a display phase and as touch circuitry during a touch sensing phase. The transistor layer can be at least partially utilized for transitioning between the display phase and the touch sensing phase. The touch screen can be fabricated to reduce or eliminate damage to the LED layer.

    Electronic devices with low refresh rate display pixels
    97.
    发明授权
    Electronic devices with low refresh rate display pixels 有权

    公开(公告)号：US10741121B2

    公开(公告)日：2020-08-11

    申请号：US16379323

    申请日：2019-04-09

    Applicant: Apple Inc.

    Inventor： Chin-Wei Lin ,  Shyuan Yang ,  Chuang Qian ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang

    IPC: G09G3/32 ,  G09G3/3225 ,  G09G3/3233

    Abstract: A display may have an array of organic light-emitting diode display pixels operating at a low refresh rate. Each display pixel may have six thin-film transistors and one capacitor. One of the six transistors may serve as the drive transistor and may be compensated using the remaining five transistors and the capacitor. One or more on-bias stress operations may be applied before threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and on-bias stress operations may be inserted during vertical blanking periods to reduce flicker and maintain balance and may also be inserted between successive data refreshes to improve first frame performance. Two different emission signals controlling each pixel may be toggled together using a pulse width modulation scheme to help provide darker black levels.

    Electronic Devices With Low Refresh Rate Display Pixels
    98.
    发明申请
    Electronic Devices With Low Refresh Rate Display Pixels 审中-公开

    公开(公告)号：US20200098314A1

    公开(公告)日：2020-03-26

    申请号：US16696578

    申请日：2019-11-26

    Applicant: Apple Inc.

    Inventor： Chin-Wei Lin ,  Shyuan Yang ,  Chuang Qian ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang

    IPC: G09G3/3225 ,  G09G3/3233

    Abstract: A display may have an array of organic light-emitting diode display pixels operating at a low refresh rate. Each display pixel may have six thin-film transistors and one capacitor. One of the six transistors may serve as the drive transistor and may be compensated using the remaining five transistors and the capacitor. One or more on-bias stress operations may be applied before threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and on-bias stress operations may be inserted during vertical blanking periods to reduce flicker and maintain balance and may also be inserted between successive data refreshes to improve first frame performance. Two different emission signals controlling each pixel may be toggled together using a pulse width modulation scheme to help provide darker black levels.

    Displays with multiple scanning modes
    99.
    发明授权
    Displays with multiple scanning modes 有权

    公开(公告)号：US10546540B1

    公开(公告)日：2020-01-28

    申请号：US16577597

    申请日：2019-09-20

    Applicant: Apple Inc.

    Inventor： Keitaro Yamashita ,  Abbas Jamshidi Roudbari ,  Shin-Hung Yeh ,  Tsung-Ting Tsai ,  Shih-Chang Chang ,  Ting-Kuo Chang ,  Ki Yeol Byun ,  Warren S. Rieutort-Louis

    IPC: G09G3/3266

    Abstract: An electronic device may include a display such as a light-emitting diode display. The electronic device may be a head-mounted device that provides a virtual reality or augmented reality environment to a user. To reduce artifacts in the display, a display may be operable in both a normal scanning mode and a partial scanning mode. In the normal scanning mode, every row of the display may be enabled to emit light in each frame. In the partial scanning mode, only a subset of the rows of the display may be enabled to emit light in each frame. The display may have a higher refresh rate in the partial scanning mode than in the normal scanning mode. To ensure uniform transistor stress across the display, the scanning driver for the display may scan the disabled rows in the partial scanning mode even though the rows will not be used to emit light.

    Electronic devices with low refresh rate display pixels
    100.
    发明授权
    Electronic devices with low refresh rate display pixels 有权

    公开(公告)号：US10304378B2

    公开(公告)日：2019-05-28

    申请号：US15996366

    申请日：2018-06-01

    Applicant: Apple Inc.

    Inventor： Chin-Wei Lin ,  Shyuan Yang ,  Chuang Qian ,  Abbas Jamshidi Roudbari ,  Ting-Kuo Chang

    IPC: G09G3/32 ,  G09G3/3225

    Abstract: A display may have an array of organic light-emitting diode display pixels operating at a low refresh rate. Each display pixel may have six thin-film transistors and one capacitor. One of the six transistors may serve as the drive transistor and may be compensated using the remaining five transistors and the capacitor. One or more on-bias stress operations may be applied before threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and on-bias stress operations may be inserted during vertical blanking periods to reduce flicker and maintain balance and may also be inserted between successive data refreshes to improve first frame performance. Two different emission signals controlling each pixel may be toggled together using a pulse width modulation scheme to help provide darker black levels.

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