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    AMBIENT LIGHT SENSOR WITH INTERNAL LIGHT CANCELLATION
    31.
    发明申请
    AMBIENT LIGHT SENSOR WITH INTERNAL LIGHT CANCELLATION 有权
    具有内部光消除的环境光传感器

    公开(公告)号：US20150122978A1

    公开(公告)日：2015-05-07

    申请号：US14074547

    申请日：2013-11-07

    Applicant: Apple Inc.

    Inventor： Erik G. deJong ,  Jean-Pierre S. Guillou ,  Koorosh Aflatooni

    IPC: G01J1/42 ,  G01J1/04

    CPC classification number: G01J1/4204 ,  G01J1/0429 ,  G01J1/32

    Abstract: An electronic device includes a transparent surface, a light emitting device that emits light through the transparent surface, and a light sensor for receiving ambient light and providing an ambient light value. A retarder and a linear polarizer are placed between the transparent surface and the light emitting device. The retarder and linear polarizer may attenuate internal reflections from the transparent surface. The light sensor may have two channels and a second linear polarizer may attenuate the ambient light directed toward a second channel. A second retarder may be used with the second linear polarizer to attenuate the ambient light directed toward the second channel. A light detection circuit may use the difference between the two channels of the light sensor to provide the ambient light value.

    Abstract translation: 电子设备包括透明表面，通过透明表面发光的发光器件，以及用于接收环境光并提供环境光值的光传感器。 在透明表面和发光器件之间放置延迟器和线性偏振器。 延迟器和线性偏振器可以衰减透明表面的内部反射。 光传感器可以具有两个通道，而第二线性偏振器可以衰减指向第二通道的环境光。 第二延迟器可以与第二线性偏振器一起使用以衰减指向第二通道的环境光。 光检测电路可以使用光传感器的两个通道之间的差来提供环境光值。

    Display with localized brightness adjustment capabilities
    32.
    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
    34.
    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
    36.
    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
    37.
    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
    40.
    发明公开
    Display With Localized Brightness Adjustment Capabilities 审中-公开

    公开(公告)号：US20240054973A1

    公开(公告)日：2024-02-15

    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

    CPC classification number: G09G5/10 ,  G06V40/1318 ,  G06V40/13 ,  G09G2320/0626 ,  G09G2360/148 ,  G09G2360/144

    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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