Liquid crystal display with temperature detection to control data renewal
    8.
    发明授权
    Liquid crystal display with temperature detection to control data renewal 失效
    液晶显示屏带有温度检测功能,可控制数据更新

    公开(公告)号:US06256006B1

    公开(公告)日:2001-07-03

    申请号:US08791847

    申请日:1997-01-30

    IPC分类号: G09G336

    CPC分类号: G09G3/36 G09G2320/041

    摘要: A liquid crystal display apparatus includes a liquid crystal display panel which indicates information represented by a contrast of the segments of the liquid crystal display when a drive voltage is applied to the display. A temperature meter measures the temperature of the LCD panel and the ambient temperature. A drive voltage setting device sets the drive voltage to be voltage to be applied to the LCD panel so as to maintain a constant contrast in accordance with the temperature value measured by the temperature meter. A drive voltage supply supplies the drive voltage set by the drive voltage setting device to the LCD panel.

    摘要翻译: 液晶显示装置包括液晶显示面板,其在向显示器施加驱动电压时指示由液晶显示器的段的对比度表示的信息。 温度计可测量LCD面板的温度和环境温度。 驱动电压设定装置将驱动电压设定为要施加到LCD面板的电压,以便根据由温度计测量的温度值来保持恒定的对比度。 驱动电压电源将由驱动电压设定装置设定的驱动电压提供给LCD面板。

    CCD Scanner with improved resolution
    9.
    发明授权
    CCD Scanner with improved resolution 失效
    CCD扫描仪具有改进的分辨率

    公开(公告)号:US4356513A

    公开(公告)日:1982-10-26

    申请号:US237811

    申请日:1981-02-24

    CPC分类号: H04N1/193

    摘要: A video signal composing circuit and method for aligning scanned CCD's in an optical reading device in which plural scanned CCD's are arranged in a line parallel to a reading surface. Clock pulses are counted which correspond to the scanning of the CCD's and compared with values set by plural switch groups. The outputs of the comparison circuits are coupled through a logic circuit which combines and gates the individual video output signals from the CCD's to produce a composite video signal which is free of overlap in video signals between adjacent CCD's.

    摘要翻译: 一种用于对准扫描CCD在光学读取装置中的视频信号组合电路和方法,其中多个扫描的CCD被布置在与读取表面平行的行中。 计数对应于CCD的扫描的时钟脉冲,并与由多个开关组设置的值进行比较。 比较电路的输出通过逻辑电路耦合,该逻辑电路组合并对来自CCD的各个视频输出信号进行门控,以产生在相邻CCD之间的视频信号中没有重叠的复合视频信号。