Invention Grant
US08259042B2 Varying the peak luminance of a display panel with comparison of the mean gradation value of a current frame and mean gradation values averaged over a period of several frames 有权
通过比较当前帧的平均灰度值和在几帧的周期内平均的平均灰度值来改变显示面板的峰值亮度

  • Patent Title: Varying the peak luminance of a display panel with comparison of the mean gradation value of a current frame and mean gradation values averaged over a period of several frames
  • Patent Title (中): 通过比较当前帧的平均灰度值和在几帧的周期内平均的平均灰度值来改变显示面板的峰值亮度
  • Application No.: US11600885
    Application Date: 2006-11-17
  • Publication No.: US08259042B2
    Publication Date: 2012-09-04
  • Inventor: Mitsuru TadaAtsushi Ozawa
  • Applicant: Mitsuru TadaAtsushi Ozawa
  • Applicant Address: JP Tokyo
  • Assignee: Sony Corporation
  • Current Assignee: Sony Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Rader Fishman & Grauer, PLLC
  • Priority: JPP2005-340434 20051125
  • Main IPC: G09G3/30
  • IPC: G09G3/30
Varying the peak luminance of a display panel with comparison of the mean gradation value of a current frame and mean gradation values averaged over a period of several frames
Abstract:
A self-luminous display apparatus capable of varying a peak luminance of a display panel in a unit of one frame, which includes: a mean gradation value calculation section configured to calculate a mean gradation value of a video signal in a unit of a frame for each one frame; a specific condition detection section configured to detect, based on the mean gradation values calculated over a period of several frames, an input of the video signal which satisfies a specific condition in which a drop of a physical peak luminance is not likely to be perceived visually; and a light emission condition control section configured to perform dropping control of the peak luminance in a unit of a frame so that a dropping condition set in advance may be satisfied for a period of time after the frame which satisfies the specific condition is detected until the detection state is canceled.
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