发明名称 Reducing sparkle artifacts with post gamma correction slew rate limiting
摘要 An apparatus for reducing sparkle artifacts (10) in a liquid crystal imager includes a device (16) for gamma correcting a video drive signal for providing a gamma corrected video drive signal and a slew rate limiter (22) for slew rate limiting the gamma corrected video drive signal. The apparatus also includes a deinterlacer (12) and a color space converter (14) for color space converting a deinterlaced video drive signal, wherein the device for gamma correcting corrects the color space converted video drive signal. One or more of the video drive signals, for example R, G and B, is slew rate limited after gamma correction to limit the difference in brightness levels between adjacent pixels.
申请公布号 US7495640(B2) 申请公布日期 2009.02.24
申请号 US20010892347 申请日期 2001.06.27
申请人 THOMSON LICENSING 发明人 WILLIS DONALD HENRY
分类号 G02F1/133;G09G3/36;G09G3/20;H04N5/20;H04N5/66 主分类号 G02F1/133
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