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    • 27. 发明授权
    • Drive method for driving a matrix-addressing display, a drive circuit
therefor, and a matrix-addressing display device
    • 用于驱动矩阵寻址显示器的驱动方法,其驱动电路和矩阵寻址显示装置
    • US5677705A
    • 1997-10-14
    • US262906
    • 1994-06-21
    • Masato ShimuraKatsumi KondoMasaaki KitajimaHiroshi KuriharaTatsuhisa FujiiShigeyuki Nishitani
    • Masato ShimuraKatsumi KondoMasaaki KitajimaHiroshi KuriharaTatsuhisa FujiiShigeyuki Nishitani
    • G02F1/133G09G3/20G09G3/36
    • G09G3/3625
    • The object of the invention is to provide a drive method suitable for driving a fast-responding STN liquid crystal display device which ensures a minimized cross talk and improved contrast in display. The drive method comprises a memory means for storing display data corresponding to a plurality of lines, a function generating means for generating a drive function for the row electrodes, an arithmetic means for computing the outputs from the foregoing means, a column electrode drive means for driving the column electrodes in dependency on the output from the arithmetic means, and a row electrode drive means for driving the row electrodes in accordance with respective row electrode drive functions. As a voltage function to be applied to each row during drive operation, a sum of a plurality of orthogonal functions is utilized. Thereby, degradation in contrast due to display patterns as well as the cross talk can be minimized. Further, arithmetic operation can be simplified in gradation display since application of a compensating voltage waveform is no more required.
    • 本发明的目的是提供一种适用于驱动快速响应的STN液晶显示装置的驱动方法,其确保了最小化的串扰和改进的显示对比度。 驱动方法包括:存储装置,用于存储对应于多行的显示数据;功能产生装置,用于产生行电极的驱动功能;计算装置,用于计算上述装置的输出;列电极驱动装置, 根据运算装置的输出驱动列电极,以及根据各行电极驱动功能驱动行电极的行电极驱动装置。 作为在驱动操作期间施加到每一行的电压函数,利用多个正交函数的和。 由此,可以将由于显示图案以及串扰引起的对比度的劣化最小化。 此外,由于不再需要施加补偿电压波形,因此可以在灰度显示中简化算术运算。
    • 28. 发明授权
    • Liquid crystal device having improved-response-characteristic drivability
    • 具有改善的响应特性驾驶性能的液晶装置
    • US07061511B2
    • 2006-06-13
    • US10756510
    • 2004-01-14
    • Tsutomu FuruhashiTatsuhiro InuzukaHiroshi KuriharaKikuo Ono
    • Tsutomu FuruhashiTatsuhiro InuzukaHiroshi KuriharaKikuo Ono
    • G09G5/10
    • G09G3/3611G09G5/39G09G2320/02G09G2320/0252G09G2320/0261G09G2340/16
    • A liquid crystal display device in which the time necessary for luminance to change from application of a different gray-scale voltage exceeds one frame period in relation to the response as a luminance change time of the liquid crystal. The liquid crystal display device includes a signal control circuit for preventing the content of a preceding frame from being displayed as an after-image and preventing also deterioration of image quality. The signal control circuit includes a frame memory for delaying by one frame the first display data inputted from the external device, an arithmetic operation circuit for comparing the second display data stored in the frame memory and delayed by one frame with the first display data, and an addition/subtraction circuit for adding and subtracting correction data outputted by the arithmetic operation circuit to and from the first display data.
    • 一种液晶显示装置,其中从应用不同灰度电压变化的亮度所需的时间相对于作为液晶的亮度变化时间的响应而超过一帧周期。 液晶显示装置包括用于防止前一帧的内容被显示为后置图像并且防止图像质量劣化的信号控制电路。 该信号控制电路包括用于将从外部设备输入的第一显示数据延迟一帧的帧存储器,用于将存储在帧存储器中并延迟了一帧的第二显示数据与第一显示数据进行比较的算术运算电路,以及 加法/减法电路,用于将由算术运算电路输出的校正数据与第一显示数据相加和减去。