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    • 7. 发明授权
    • Liquid crystal display control apparatus and liquid crystal display apparatus
    • 液晶显示控制装置和液晶显示装置
    • US06353435B2
    • 2002-03-05
    • US09059363
    • 1998-04-14
    • Yasuyuki KudoTsutomu FuruhashiHiroyuki ManoShinji UchidaTatsuhiro InuzukaTakeshi MaedaSatoshi Konuma
    • Yasuyuki KudoTsutomu FuruhashiHiroyuki ManoShinji UchidaTatsuhiro InuzukaTakeshi MaedaSatoshi Konuma
    • G09G500
    • G09G3/3644G09G3/2025G09G3/3622
    • A liquid crystal display control apparatus includes a display on/off data generation circuit for generating plural display on/off data per pixel corresponding to M (M>N, M and N being integers) frame periods of a video output signal in N frame periods of a video input signal on a unit pixel basis in response to gray-scale data of pixel units included in the video input signal, a write control circuit for writing display on/off data per pixel corresponding to M frames of the video output signal generated by the display on/off data generation circuit into a frame memory during N frame periods of the video input signal, and a read control circuit for sequentially reading out, from the frame memory, display on/off data corresponding to M frames of the video output signal written in the frame memory in synchronism with one display scan period of the video output signal, thereby the data written in the frame memory is not gray-scale data but display on/off data of one bit, therefore, a data bus width at a time of accessing the frame memory can be reduced.
    • 液晶显示控制装置包括:显示器开/关数据生成电路,用于产生与N帧中的视频输出信号的M(M> N,M和N为整数)对应的像素的多个显示开/关数据 响应于包括在视频输入信号中的像素单元的灰度数据,以单位像素为基础的视频输入信号的写控制电路,用于写入对应于所生成的视频输出信号的M帧的每像素的显示开/关数据的写控制电路 通过在视频输入信号的N帧周期期间通过显示器的开/关数据产生电路进入帧存储器,以及读取控制电路,用于从帧存储器顺序地读出对应于视频的M个帧的开/关数据 输出信号与视频输出信号的一个显示扫描周期同步写入帧存储器,由此写入帧存储器的数据不是灰度数据,而是显示一位的开/关数据,因此数据 可以减少访问帧存储器时的总线宽度。
    • 10. 发明授权
    • Method and apparatus for multi-level tone display for liquid crystal
apparatus
    • 液晶显示器的方法和装置
    • US5854879A
    • 1998-12-29
    • US3448
    • 1993-01-12
    • Tatsuhiro InuzukaHiroyuki ManoKazuhiro FujisawaSatoshi KonumaKiyoshige KinugawaSatoru Tsunekawa
    • Tatsuhiro InuzukaHiroyuki ManoKazuhiro FujisawaSatoshi KonumaKiyoshige KinugawaSatoru Tsunekawa
    • G02F1/133G09G3/20G09G3/36H04N3/12
    • G09G3/3622G09G3/3611H04N3/127G09G3/2018G09G3/3614
    • A liquid crystal display apparatus including a liquid crystal panel of a plurality of dots, an X drive circuit for supplying display information of at least one line to the liquid crystal panel and a Y drive circuit for selecting one-dot data for each line of the liquid crystal panel, the X drive circuit and the Y drive circuit enabling energization of the liquid crystal panel. A plurality of memories are provided for receiving a plurality of bits of information data and for storing at least M dot display information data so as to enable display of a respective line of the liquid crystal panel, M being an integer. A selection arrangement is provided for selecting one bit of display information dat out of a plurality of bits of display information data to be read out of the memories and a selection controller is provided for specifying the one bit of display information data to be selected by the selection arrangement so as to enmable read out of each one bit of the plurality of bits in a predetermined time sequence corresponding to one horizontal perioid divided by N for display, where N is an integer of at least two. The X drive circuit is supplied one dot information at leat two times during the one horizontal period so that one dot is controlled for display at least two times during the one horizontal period to enable multi-level tone display.
    • 一种液晶显示装置,包括多个点的液晶面板,用于向液晶面板提供至少一条线路的显示信息的X驱动电路和用于选择每一行的单点数据的Y驱动电路 液晶面板,X驱动电路和Y驱动电路,使液晶面板通电。 提供多个存储器用于接收多个位的信息数据,并且用于存储至少M个点显示信息数据,以便能够显示液晶面板的各个行,M是整数。 提供了一种选择装置,用于从要从存储器中读出的显示信息数据的多个位中选择一位显示信息数据,并提供选择控制器,用于指定要由该存储器选择的显示信息数据的一位 选择装置,以便以对应于除以N的一个水平眼旁的预定时间序列可读出多个比特的每一比特以进行显示,其中N是至少两个的整数。 在一个水平周期期间,X驱动电路提供一个点信息,两次,使得在一个水平周期期间,一个点被控制至少两次,以启用多级色调显示。