知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

228 records (took 0.02 seconds)

    Electronic devices with low refresh rate display pixels
    111.
    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.

    Light-Emitting Diode Displays
    112.
    发明申请
    Light-Emitting Diode Displays 审中-公开

    公开(公告)号：US20190148465A1

    公开(公告)日：2019-05-16

    申请号：US16224607

    申请日：2018-12-18

    Applicant: Apple Inc.

    Inventor： Cheng-Ho Yu ,  Chin-Wei Lin ,  Shyuan Yang ,  Ting-Kuo Chang ,  Tsung-Ting Tsai ,  Warren S. Rieutort-Louis ,  Shih-Chang Chang ,  Yu Cheng Chen ,  John Z. Zhong

    IPC: H01L27/32 ,  G09G3/3266 ,  G06F3/044 ,  G09G3/3233

    Abstract: A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.

    Sensing for compensation of pixel voltages
    114.
    发明授权
    Sensing for compensation of pixel voltages 有权

    公开(公告)号：US10186200B2

    公开(公告)日：2019-01-22

    申请号：US15271115

    申请日：2016-09-20

    Applicant: Apple Inc.

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

    IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

    Abstract: A display device may include rows of pixels that displays image data on a display. The display device also includes a circuit that performs a progressive scan across the rows of pixels to display the image data using a plurality of pixels. The circuit may then supply test data to at least one pixel of a plurality of pixels that corresponds to a first row of the rows of pixels during the progressive scan, determine one or more sensitivity properties associated with the at least one pixel based on the performance of the at least one pixel when the test data is provided to the at least one pixel, and resume the progressive scan at the at least one pixel to display the image data for the at least one pixel and a remaining portion of the plurality of pixels in the first row and remaining rows of pixels.

    Organic light-emitting diode display with pulse-width-modulated brightness control
    115.
    发明授权
    Organic light-emitting diode display with pulse-width-modulated brightness control 有权

    公开(公告)号：US10186187B2

    公开(公告)日：2019-01-22

    申请号：US14687081

    申请日：2015-04-15

    Applicant: Apple Inc.

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

    IPC: G09G3/20 ,  G09G3/32 ,  G09G3/3266 ,  G09G3/3258 ,  G09G3/3233

    Abstract: A display may have an array of pixels arranged in rows and columns. Display driver circuitry may load data into the pixels via data lines that extend along the columns. The display driver circuitry may include gate driver circuitry that supplies horizontal control signals to rows of the pixels. The horizontal control signals may include emission enable signals for controlling emission enable transistors and scan signals for controlling switching transistors. During an emission phase of operation for the display, the emission enable signal may be pulse-width modulated by the emission control gate driver circuits in the gate driver circuitry to control the output of the light-emitting diodes. The emission control gate driver circuits may be controlled using an emission start signal and a pair of two-phase clocks.

    Encapsulation design for narrow border
    117.
    发明授权
    Encapsulation design for narrow border 有权

    公开(公告)号：US10043997B2

    公开(公告)日：2018-08-07

    申请号：US15339324

    申请日：2016-10-31

    Applicant: Apple Inc.

    Inventor： Shinya Ono ,  Tsung-Ting Tsai ,  Chin-Wei Lin

    IPC: H01L29/08 ,  H01L51/00 ,  H01L51/52 ,  G09G3/3266 ,  H01L27/32

    Abstract: Display panels and encapsulation structures are described for OLED display panels, in particular. In an embodiment, a display panel includes a gate driver in panel (GIP) region, a GIP clock region within the GIP region, a pixel area region, and a VSSEL contact region laterally between an outer edge of the GIP region and the pixel area region. In some embodiments, structures are described in which capacitive coupling with the GIP clock region can be mitigated, and overlapping inorganic layers form a barrier to moisture outside of the pixel area region.

Patent Agency Ranking