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    Organic light-emitting diode display with smooth dimming control
    21.
    发明授权
    Organic light-emitting diode display with smooth dimming control 有权

    公开(公告)号：US10089931B2

    公开(公告)日：2018-10-02

    申请号：US14990701

    申请日：2016-01-07

    Applicant: Apple Inc.

    Inventor： Koorosh Aflatooni ,  Yafei Bi ,  Hung Sheng Lin ,  Mohammad Ali Jangda

    IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3258 ,  H03M1/72 ,  H03M1/76

    Abstract: An electronic device that includes a display is provided. The display may have a brightness that is controlled using a series of cascaded digital-to-analog converter circuits. The display may be calibrated at a series of predetermined display brightness settings. For display brightness settings that fall between two consecutive display brightness settings in the series of predetermined display brightness settings, voltage interpolation operations may be performed to obtain the corresponding display brightness settings. Performing voltage interpolations instead of digital brightness setting interpolation helps minimize luminance jumps and unexpected color shifts when adjusting the brightness of the display.

    Display with localized brightness adjustment capabilities
    22.
    发明授权
    Display with localized brightness adjustment capabilities 有权

    公开(公告)号：US12198656B2

    公开(公告)日：2025-01-14

    申请号：US18493576

    申请日：2023-10-24

    Applicant: Apple Inc.

    Inventor： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei H. Yao

    IPC: G09G5/10 ,  G06V40/13

    Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

    Pixel leakage and internal resistance compensation systems and methods
    24.
    发明授权
    Pixel leakage and internal resistance compensation systems and methods 有权

    公开(公告)号：US11170690B2

    公开(公告)日：2021-11-09

    申请号：US17003730

    申请日：2020-08-26

    Applicant: Apple Inc.

    Inventor： Adria Fores Herranz ,  Chaohao Wang ,  Jun Li ,  Koorosh Aflatooni ,  Pierre-Yves Emelie ,  Sheng Zhang ,  Yingying Tang ,  Yunhui Hou

    IPC: G09G3/20 ,  G09G5/10

    Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive input image data, in a first color space, having luminance values for each of the sub-pixels. The circuitry may also map the input image data from the first color space to a second color space and apply a multi-dimensional lookup table, based on the input image data in the second color space, to generate compensated image data. The lookup table may receive the luminance values for each of the sub-pixels and output corrected luminance values compensated for an expected amount of current leakage between the sub-pixels. The circuitry may also inversely map the compensated image data from the second color space to the first color space to generate the processed image data.

    Light-Emitting Diode Displays With Predictive Luminance Compensation
    26.
    发明申请
    Light-Emitting Diode Displays With Predictive Luminance Compensation 审中-公开
    具有预测亮度补偿的发光二极管显示器

    公开(公告)号：US20170076659A1

    公开(公告)日：2017-03-16

    申请号：US14936343

    申请日：2015-11-09

    Applicant: Apple Inc.

    Inventor： Yifan Zhang ,  Paul S. Drzaic ,  Chieh-Wei Chen ,  Jean-Pierre S. Guillou ,  Koorosh Aflatooni

    IPC: G09G3/3208 ,  G09G3/20

    CPC classification number: G09G3/3208 ,  G09G3/2003 ,  G09G3/3225 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2320/0666

    Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history and temperature measurements.

    Abstract translation: 电子设备可以设置有显示器。 内容生成器可以生成要在显示器上显示的图像数据的帧。 显示器可以具有发射光以显示图像的像素阵列。 像素可以包含诸如有机发光二极管，量子点发光二极管和由分立半导体管芯形成的发光二极管等发光器件。 作为老化的结果，发光装置的发光能力随时间而降低。 电子设备可以具有收集温度测量值的温度传感器。 像素亮度降低补偿器可以对与图像数据的帧相关联的未校正像素亮度值应用补偿因子，以产生用于显示的对应的校正像素亮度值。 补偿因子可以基于老化历史信息，例如像素亮度历史和温度测量。

    Display with Continuous Profile Peak Luminance Control
    27.
    发明申请
    Display with Continuous Profile Peak Luminance Control 审中-公开
    显示连续轮廓峰值亮度控制

    公开(公告)号：US20160314760A1

    公开(公告)日：2016-10-27

    申请号：US14869437

    申请日：2015-09-29

    Applicant: Apple Inc.

    Inventor： Mohammad Ali Jangda ,  Koorosh Aflatooni ,  Yafei Bi

    IPC: G09G5/10 ,  G09G3/20

    CPC classification number: G09G5/10 ,  G09G3/2003 ,  G09G3/3208 ,  G09G2310/027 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/0653 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2360/144 ,  G09G2360/16

    Abstract: A display may have an array of display pixels. Digital display data may be received by a digital-to-analog converter that converts the digital display data to analog display data. The magnitudes of the analog display data signals can be controlled by a regulated voltage received by the digital-to-analog converter. A brightness controller may have multiple peak luminance control (PLC) profiles. In accordance with an embodiment, a brightness setting may be processed by a lookup table to identify a pair of PLC profiles that is interpolated in order to obtain the desired regulated voltage. In accordance with another embodiment, a single PLC profile may be used that is a function of a combined parameter that takes into account both average frame luminance and the brightness setting. In accordance with yet another embodiment, a lookup table that specifies brightness setting offset values may be used to directly modulate the brightness setting.

    Abstract translation: 显示器可以具有显示像素阵列。 数字显示数据可以由将数字显示数据转换为模拟显示数据的数模转换器接收。 模拟显示数据信号的幅度可以由数模转换器接收的调节电压来控制。 亮度控制器可以具有多个峰值亮度控制（PLC）简档。 根据实施例，可以通过查找表来处理亮度设置，以识别内插的一对PLC配置文件，以获得所需的调节电压。 根据另一个实施例，可以使用单个PLC简档，其是考虑平均帧亮度和亮度设置两者的组合参数的函数。 根据另一个实施例，可以使用指定亮度设置偏移值的查找表来直接调制亮度设置。

    Display With Localized Brightness Adjustment Capabilities
    28.
    发明申请
    Display With Localized Brightness Adjustment Capabilities 有权

    公开(公告)号：US20250149010A1

    公开(公告)日：2025-05-08

    申请号：US19015413

    申请日：2025-01-09

    Applicant: Apple Inc.

    Inventor： Koorosh Aflatooni ,  Minhyuk Choi ,  Mohammad Ali Jangda ,  Sang Y. Youn ,  Yafei Bi ,  Jean-Pierre Guillou ,  Wei H. Yao

    IPC: G09G5/10 ,  G06V40/13

    Abstract: An electronic device may have a display with an array of pixels. The device may have an array of components such as an array of light sensors for capturing fingerprints of a user through an array of corresponding transparent windows in the display. A capacitive touch sensor, proximity sensor, force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger over the array of light sensors. In response, the control circuitry can direct the display to illuminate a subset of the pixels, thereby illuminating the user's finger and causing reflected light from the finger to illuminate the array of light sensors for a fingerprint capture operation. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data is displayed in other portions of the display.

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