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    Light-emitting diode display with reduced leakage
    12.
    发明授权
    Light-emitting diode display with reduced leakage 有权

    公开(公告)号：US10431154B2

    公开(公告)日：2019-10-01

    申请号：US15431337

    申请日：2017-02-13

    Applicant: Apple Inc.

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

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

    Abstract: An organic light-emitting diode display may contain an array of display pixels. Each display pixel may have a respective organic light-emitting diode that is controlled by a drive transistor. At low temperatures, it may be necessary to increase the amount of current through an organic light-emitting diode to achieve a desired luminance level. In order to increase the current through the light-emitting diode, the ground voltage level may be lowered. However, this may lead to thin-film transistors within the pixel leaking, which may result in undesirable display artifacts such as bright dots being displayed in a dark image. In order to prevent leakage in the transistors, the transistors may be coupled to separate reference voltage supplies or separate control lines. Additionally, the transistors may be positioned to minimize leakage even at low ground voltage levels.

    Sensing for compensation of pixel voltages
    13.
    发明授权
    Sensing for compensation of pixel voltages 有权

    公开(公告)号：US10217390B2

    公开(公告)日：2019-02-26

    申请号：US15874687

    申请日：2018-01-18

    Applicant: Apple Inc.

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

    IPC: G09G3/00 ,  G09G3/3266

    Abstract: A display device may include rows of pixels that may display image data on a display and a circuit. The circuit may perform a progressive scan across the rows of pixels to display the image data using a plurality of pixels, supply test data to a pixel of plurality of pixels that corresponds to a first row of the rows of pixels during one frame of the progressive scan, and initiate a sensing period for determining one or more sensitivity properties associated with the pixel based on the performance of the pixel with respect to the test data in response to receiving a pulse of a first global signal. The circuit may then end the sensing period in response to receiving a second global signal and resume the progressive scan across the rows of pixels to display the image data after the sensing period ends.

    Silicon and Semiconducting Oxide Thin-Film Transistor Displays
    16.
    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：US20170062539A1

    公开(公告)日：2017-03-02

    申请号：US15351266

    申请日：2016-11-14

    Applicant: Apple Inc.

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

    IPC: H01L27/32 ,  H01L51/00 ,  H01L27/12

    CPC classification number: H01L27/3262 ,  H01L27/1225 ,  H01L27/3258 ,  H01L27/3265 ,  H01L27/3276 ,  H01L29/78651 ,  H01L29/78672 ,  H01L29/7869 ,  H01L51/0097 ,  H01L2251/5338 ,  Y02E10/549

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

    Organic light-emitting diode display with enhanced aperture ratio
    17.
    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。

    PULSE WIDTH MODULATION (PWM) DRIVING SCHEME AND BEZEL REDUCTION
    18.
    发明申请
    PULSE WIDTH MODULATION (PWM) DRIVING SCHEME AND BEZEL REDUCTION 有权
    脉冲宽度调制（PWM）驱动方案和减少贝泽

    公开(公告)号：US20160247456A1

    公开(公告)日：2016-08-25

    申请号：US14988594

    申请日：2016-01-05

    Applicant: Apple Inc.

    Inventor： Hung Sheng Lin ,  Chin-Wei Lin ,  Tsung-Ting Tsai ,  Sang Y. Youn ,  Hyunwoo Nho

    IPC: G09G3/3266 ,  G11C19/00

    CPC classification number: G09G3/3266 ,  G09G3/2022 ,  G09G3/2092 ,  G09G2300/0408 ,  G09G2310/0286 ,  G11C19/00

    Abstract: This application sets forth a circuit configuration for a light emitting diode (LED) or organic light emitting diode (OLED) display. The circuit configuration allows for the pulse-width modulation (PWM) of each emission signal sent to each line of the display. The PWM of each emission signal is accomplished using a gate-in-panel (GIP) controller of the display. The GIP controller uses an arrangement of shift register outputs and a programmable clock input to control an output of an inverter that provides the emission signal. The programmable clock input can be programmed according to a desired timing or duty cycle for the emission signal. In this way, by limiting the duty cycle of the emission signal, dimming and other display features can be exhibited by the LED or OLED display.

    Abstract translation: 该应用阐述了用于发光二极管（LED）或有机发光二极管（OLED）显示器的电路配置。 电路配置允许发送到显示器的每一行的每个发射信号的脉冲宽度调制（PWM）。 每个发射信号的PWM通过显示器的面板（GIP）控制器实现。 GIP控制器使用移位寄存器输出和可编程时钟输入的布置来控制提供发射信号的逆变器的输出。 可编程时钟输入可根据发射信号所需的定时或占空比进行编程。 以这种方式，通过限制发射信号的占空比，LED或OLED显示器可以显示调光和其他显示特征。

    Organic light-emitting diode display with bottom shields
    19.
    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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