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    • 9. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07307606B1
    • 2007-12-11
    • US09542460
    • 2000-04-04
    • Tatsuro YamazakiNaoto AbeMakiko Mori
    • Tatsuro YamazakiNaoto AbeMakiko Mori
    • G09G3/30
    • G09G3/22G09G3/2011G09G2300/0439G09G2300/0452G09G2310/0267G09G2310/027G09G2310/04G09G2320/0673
    • An image forming apparatus having a display panel with 1,920×480 electron-emitting devices arranged in a matrix and a plurality of fluorescent substances for emitting light by electrons emitted by these electron-emitting devices includes, as one of circuits for driving the display panel, an I/P converter for converting an interlaced scanning signal input at an NTSC image frame rate by a double frame rate and converting the signal into a non-interlaced scanning signal. The signal is controlled to define the maximum time interval during which the fluorescent substances are continuously irradiated with electrons from the electron-emitting devices in units of rows in line-sequential scanning, so as not to substantially degrade the linearity of the luminance characteristic of the fluorescent substances that changes depending on an electron irradiation time for the fluorescent substances.
    • 具有排列成矩阵的1,920×480个电子发射器件和由这些电子发射器件发射的电子发射光的多种荧光物质的显示面板的图像形成装置包括作为驱动显示面板的电路之一, I / P转换器,用于将以NTSC图像帧速率输入的隔行扫描信号以双帧速率转换,并将该信号转换为非隔行扫描信号。 信号被控制以限定在行顺序扫描中以行为单位的电子以电子发射装置的电子连续照射荧光物质的最大时间间隔,以便不会基本上降低亮度特性的线性 根据荧光物质的电子照射时间而变化的荧光物质。