公开(公告)号：WO2014143484A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/016231

申请日：2014-02-13

Applicant: APPLE INC.

Inventor： ALBRECHT, Marc ,  TANN, Christopher, Philip Alan ,  ROLAND, Nicholas, G. ,  PINTZ, Sandro, H. ,  KIM, Taesung

IPC: G09G3/20

CPC classification number: G09G3/3406 ,  G09G3/2007 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A method is provided for compensating for brightness change in a display. The method includes storing a plurality of look-up tables (LUTs), where each table has a plurality of pixel levels at a variable refresh rate (VRR) and a plurality of brightness signals that provide compensation for the brightness change when refresh rate is changed during a panel self-refresh (PSR). The method also includes receiving an input signal from a graphics processing unit (GPU) and determining the VRR of the input signal from the GPU. The method further includes obtaining the LUT at the determined VRR of the input signal and adjusting the input signal to produce an output signal that compensates for the brightness change for each pixel or sub-pixel in a timing controller based upon the LUT at the determined VRR. The method further includes transmitting the output signal to the display. A system is also provided.

Abstract translation: 提供了一种补偿显示器亮度变化的方法。 该方法包括存储多个查找表（LUT），其中每个表具有可变刷新率（VRR）的多个像素级和当刷新率改变时为亮度改变提供补偿的多个亮度信号 在面板自刷新（PSR）期间。 该方法还包括从图形处理单元（GPU）接收输入信号并确定来自GPU的输入信号的VRR。 该方法还包括在确定的输入信号的VRR上获得LUT并调整输入信号以产生一个输出信号，该输出信号基于在所确定的VRR上的LUT来补偿定时控制器中的每个像素或子像素的亮度变化 。 该方法还包括将输出信号发送到显示器。 还提供了一种系统。

公开(公告)号：WO2014025470A1

公开(公告)日：2014-02-13

申请号：PCT/US2013/047861

申请日：2013-06-26

Applicant: APPLE INC.

Inventor： ALBRECHT, Marc ,  BARNHOEFER, Ulrich ,  MARCU, Gabriel ,  PINTZ, Sandro, H.

IPC: G09G5/02 ,  G09G3/20

CPC classification number: G09G3/2074 ,  G09G5/02 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2360/145

Abstract: An electronic device may include a display and display control circuitry. The display may be calibrated to reduce color non-uniformity in the display. Display calibration information may be obtained during manufacturing and may be stored in the electronic device. The display calibration information may include color-specific, intensity-specific, location-specific correction factors. During operation of the display, display control circuitry may receive pixel data to be displayed by each pixel in the display. The pixel data may include color information and intensity information for each pixel. Based on the color information for each pixel, the intensity information for each pixel, and the location of each pixel in the display, the display control circuitry may determine a color-specific, intensity-specific, location-specific correction factor to apply to the pixel data for each pixel. Adapted pixel data may be supplied to each pixel in the display.

Abstract translation: 电子设备可以包括显示和显示控制电路。 可以校准显示器以减少显示器中的颜色不均匀性。 在制造过程中可以获得显示校准信息，并且可以将其存储在电子设备中。 显示校准信息可以包括颜色特定的，强度特定的，位置特定的校正因子。 在显示器的操作期间，显示控制电路可以接收由显示器中的每个像素显示的像素数据。 像素数据可以包括每个像素的颜色信息和强度信息。 基于每个像素的颜色信息，每个像素的强度信息以及显示器中每个像素的位置，显示控制电路可以确定特定于颜色的强度特定的位置特定校正因子以应用于 每个像素的像素数据。 可以将适应的像素数据提供给显示器中的每个像素。

公开(公告)号：WO2016190955A1

公开(公告)日：2016-12-01

申请号：PCT/US2016/025048

申请日：2016-03-30

Applicant: APPLE INC.

Inventor： WANG, Chaohao ,  TRIPATHI, Brijesh ,  TANN, Christopher, Philip Alan ,  ZALATIMO, David, S. ,  COTE, Guy ,  NAN, Hao ,  ALBRECHT, Marc ,  SACCHETTO, Paolo ,  PINTZ, Sandro, H.

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G2320/0204 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2340/0435 ,  G09G2360/16

Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The image frames may be displayed with positive and negative polarities to help reduce charge accumulation effects. A charge accumulation tracker may analyze the image frames to determine when there is a risk of excess charge accumulation. The charge accumulation tracker may analyze information on gray levels, frame duration, and frame polarity. The charge accumulation tracker may compute a charge accumulation metric for entire image frames or may process subregions of each frame separately. When subregions are processed separately, each subregion may be individually monitored for a risk of excess charge accumulation.

Abstract translation: 电子设备可以生成要显示在显示器上的内容。 显示器可以具有用于显示内容的图像帧的液晶显示像素阵列。 图像帧可以以正极性和负极性显示，以帮助减少电荷积累效应。 电荷累积跟踪器可以分析图像帧以确定何时存在电荷累积过多的风险。 电荷累积跟踪器可以分析关于灰度级，帧持续时间和帧极性的信息。 电荷累积跟踪器可以计算整个图像帧的电荷累积度量，或者可以分别处理每个帧的子区域。 当分区域被单独处理时，可以对每个子区域进行单独的监视，以获得过剩电荷累积的风险。

公开(公告)号：EP2973526A1

公开(公告)日：2016-01-20

申请号：EP14708714.2

申请日：2014-02-13

Applicant: Apple Inc.

Inventor： ALBRECHT, Marc ,  TANN, Christopher, Philip Alan ,  ROLAND, Nicholas, G. ,  PINTZ, Sandro, H. ,  KIM, Taesung

IPC: G09G3/20

CPC classification number: G09G3/3406 ,  G09G3/2007 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A method is provided for compensating for brightness change in a display. The method includes storing a plurality of look-up tables (LUTs), where each table has a plurality of pixel levels at a variable refresh rate (VRR) and a plurality of brightness signals that provide compensation for the brightness change when refresh rate is changed during a panel self-refresh (PSR). The method also includes receiving an input signal from a graphics processing unit (GPU) and determining the VRR of the input signal from the GPU. The method further includes obtaining the LUT at the determined VRR of the input signal and adjusting the input signal to produce an output signal that compensates for the brightness change for each pixel or sub-pixel in a timing controller based upon the LUT at the determined VRR. The method further includes transmitting the output signal to the display. A system is also provided.