公开(公告)号：US20180158173A1

公开(公告)日：2018-06-07

申请号：US15711831

申请日：2017-09-21

Applicant: Apple Inc.

Inventor： Shengkui GAO ,  Hung Sheng LIN ,  Hyunsoo KIM ,  Hyunwoo NHO ,  Katherine W. SONG ,  Mohammad HAJIROSTAM ,  Myung-Je CHO ,  Rui ZHANG ,  Sang Y. YOUN ,  Wei H. YAO ,  Yafei BI

IPC: G06T3/40 ,  G06T5/00 ,  G06T7/00 ,  G06T7/90

CPC classification number: G06T3/40 ,  G06T5/001 ,  G06T5/009 ,  G06T7/0002 ,  G06T7/90

Abstract: A display device may include a display having a pixels and a processor. The processor may receive image data, determine a digital offset value for a pixel based on a location of the pixel, such that the digital offset value compensates for one or more non-uniformity properties of the pixel. The processor may determine a scale factor associated with the pixel based on at least two of a luminance setting for the display, a driving mode of the display, and a gray level value for the pixel. The processor may then generate correction image data by applying the scale factor to the digital offset value, generate compensated image data based on the correction image data and the image data, and provide the compensated image data to the display.

公开(公告)号：US20170032742A1

公开(公告)日：2017-02-02

申请号：US15262449

申请日：2016-09-12

Applicant: Apple Inc.

Inventor： Johan L. PIPER ,  James C. AAMOLD ,  Shengkui GAO ,  Hung Sheng LIN ,  Hyunwoo NHO

IPC: G09G3/3266

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2360/145

Abstract: In order to reduce non-uniform luminance and/or chrominance, a display panel can determine, on a pixel-by-pixel basis in at least a row of pixels, a correction for voltage drops in the display panel. The voltage drop can be estimated based on a state of pixels in the display panel corresponding to at least a portion of a current frame of image data and at least a portion of a previous frame of image data. Moreover, based on the correction, the display plane can modify on the pixel-by-pixel basis in at least the row: a supply voltage applied to the display panel; a digital representation of the image data in the current frame that correspond to the pixels; and pixel drive signals corresponding to the image data in the current frame. Furthermore, the correction may be based on a predefined calibration constant and/or may be dynamically calculated.

Abstract translation: 为了减少不均匀的亮度和/或色度，显示面板可以在至少一行像素的逐个像素的基础上确定对显示面板中的电压降的校正。 可以基于对应于图像数据的当前帧的至少一部分和图像数据的先前帧的至少一部分的显示面板中的像素的状态来估计电压降。 此外，基于校正，显示平面可以至少在逐个像素的基础上修改：施加到显示面板的电源电压; 对应于像素的当前帧中的图像数据的数字表示; 以及对应于当前帧中的图像数据的像素驱动信号。 此外，校正可以基于预定义的校准常数和/或可以被动态地计算。