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    • 8. 发明授权
    • Micro projector driving device and driving method
    • 微型投影机驱动装置及驱动方法
    • US08773348B2
    • 2014-07-08
    • US13146154
    • 2010-01-13
    • Songtaek KwanDonghyub KimSungsoo Kim
    • Songtaek KwanDonghyub KimSungsoo Kim
    • G09G3/36G03B21/14G03B21/12H04N9/31
    • G03B21/12G03B21/14G03B21/2053H04N9/312H04N9/3173H04N9/3197
    • A micro projector driving device and a driving method are provided, where pixels of the first and last images at a specified location are compared, and the light intensity of the light sources is then adjusted according to the compared results so as to avoid the continual display of images with different contrast requirements at the highest light intensity, thus saving power under a guaranteed visual effect, and prolonging the battery life of a portable micro projector. A higher power drive light source should be used for a static image rather than for a video image. Images are divided into sections, and then the pixels from each section are selected at random for comparison, therefore greatly reducing the amount of computing but still having a rather high accuracy.
    • 提供一种微型投影仪驱动装置和驱动方法,其中比较在指定位置处的第一和最后图像的像素,然后根据比较的结果调整光源的光强度,以避免连续显示 在最高光强度下具有不同对比度要求的图像,从而在保证视觉效果的情况下节省电力,并延长便携式微型投影机的电池寿命。 更高的功率驱动光源应该用于静态图像而不是视频图像。 图像被划分为几个部分,然后随机选择每个部分的像素进行比较,从而大大减少了计算量但仍具有相当高的精度。