ELECTRONIC DEVICES WITH DISPLAYS FOR MITIGATING CATHODE NOISE

    公开(公告)号:WO2023043579A1

    公开(公告)日:2023-03-23

    申请号:PCT/US2022/041092

    申请日:2022-08-22

    Applicant: APPLE INC.

    Abstract: A display may include an array of pixels. Each pixel in the array includes a drive transistor (Tdrive), a light-emitting-diode (26), a storage capacitor (Cst), a current boosting capacitor (Cboost) and an isolation transistor (Tiso) connected between a static voltage line (Vdc) and the current boosting capacitor. The pixel may further include emission transistors (Teml, Tem2), a data loading transistor (Tdata), a gate voltage setting transistor (Tref) and an anode reset transistor (Tar). A data refresh may include a initialization phase, a threshold voltage sampling phase, and a data programming phase. The threshold voltage sampling phase can be substantially longer than the data programming phase to decrease a current sampling level during the threshold voltage sampling phase, which helps reduce the display luminance sensitivity to temperature variations. During a data refresh, the isolation transistor can be turned on to provide current boosting. During emission periods, the isolation transistor is turned off to prevent cathode noise from potentially coupling through to one or more direct-current voltage nodes in the pixel.

    ELECTRONIC DEVICE HAVING DISPLAY WITH CURVED EDGES
    2.
    发明申请
    ELECTRONIC DEVICE HAVING DISPLAY WITH CURVED EDGES 审中-公开
    具有弯曲边缘的显示器的电子设备

    公开(公告)号:WO2016195796A1

    公开(公告)日:2016-12-08

    申请号:PCT/US2016/025192

    申请日:2016-03-31

    Applicant: APPLE INC.

    Abstract: A display may have an array of pixels. The array of pixels may have a shape such as a circular shape or other shape with a curved edge. Display driver circuitry may supply data signals to the pixels using folded vertical data lines and bisected horizontal gate lines. Each folded vertical lines may have a first segment in a left half of the array and a second segment in a right half of the display. Curved coupling segments in an inactive area of the display may be used in joining the first and second segments. Display driver circuits may be provided in top and bottom portions of the inactive area to supply data to respective top and bottom portions of the array. Gate driver output buffers may have different strengths in different rows of the array.

    Abstract translation: 显示器可以具有像素阵列。 像素阵列可以具有诸如圆形或具有弯曲边缘的其他形状的形状。 显示驱动器电路可以使用折叠的垂直数据线和平分的水平栅极线向像素提供数据信号。 每个折叠的垂直线可以具有阵列的左半部分中的第一段和显示器右半部分中的第二段。 显示器的非活动区域中的弯曲耦合段可以用于连接第一和第二段。 可以在非活动区域的顶部和底部设置显示驱动器电路,以将数据提供给阵列的相应顶部和底部。 栅极驱动器输出缓冲器可能在阵列的不同行中具有不同的优势。

    SILICON AND SEMICONDUCTING OXIDE THIN-FILM TRANSISTOR DISPLAYS
    4.
    发明公开
    SILICON AND SEMICONDUCTING OXIDE THIN-FILM TRANSISTOR DISPLAYS 审中-公开
    硅和半导体氧化物薄膜晶体管显示器

    公开(公告)号:EP3183750A1

    公开(公告)日:2017-06-28

    申请号:EP14902297.2

    申请日:2014-10-09

    Applicant: Apple Inc.

    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有多少电流流过有机发光二极管。 每个像素电路可以包括一个或多个额外的晶体管,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来形成。 一些层可以沿着显示器的边缘被移除以促进弯曲。 当数据线延伸到非活动边缘区域时,电介质层可以具有阶梯状轮廓,该阶梯轮廓允许阵列中的数据线向着基板的表面下降。

    SILICON AND SEMICONDUCTING OXIDE THIN-FILM TRANSISTOR DISPLAYS
    8.
    发明申请
    SILICON AND SEMICONDUCTING OXIDE THIN-FILM TRANSISTOR DISPLAYS 审中-公开
    硅和半导体氧化物薄膜晶体管显示器

    公开(公告)号:WO2016048385A1

    公开(公告)日:2016-03-31

    申请号:PCT/US2014/059936

    申请日:2014-10-09

    Applicant: APPLE INC.

    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,当数据线延伸到非活动边缘区域时,允许阵列中的数据线朝着衬底的表面逐步降低。

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