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    • 9. 发明申请
    • Liquid crystal display device
    • 液晶显示装置
    • US20060066776A1
    • 2006-03-30
    • US11231443
    • 2005-09-20
    • Ryuichiro IsobeYasufumi Asao
    • Ryuichiro IsobeYasufumi Asao
    • G02F1/1335
    • G02F1/13363G02F1/133553G02F2001/133638G02F2413/01G02F2413/08
    • A liquid crystal display device capable of ensuring a good contrast ratio and preventing a lowering in color reproducibility at the time of motion picture image display includes a liquid crystal layer 56, showing optically uniaxial alignment, disposed between a first substrate B provided with at least a transparent electrode 54 and a second substrate A provided with an electrode 58 having a reflection function; a phase plate 52 disposed on the first substrate B; and a polarizer 51 disposed on the phase plate 52. The polarizer 51 and the phase plate 52 are disposed so that an optical axis of the polarizer 51 and a slow axis of the phase plate 52 form an angle θ, and the polarizer 51 and the liquid crystal layer 56 are disposed so that the optical axis of the polarizer 51 and an optical axis of the liquid crystal layer 56 form an angle of 2θ+45 degrees. A retardation of liquid crystal is changed in a range between λ/4 and λ/2 to prevent light passing during black display.
    • 能够确保良好的对比度并且防止运动图像显示时的色彩再现性降低的液晶显示装置包括:液晶层56,其显示出光学单轴取向,设置在设置有至少一个 透明电极54和具有反射功能的电极58的第二基板A; 设置在第一基板B上的相位板52; 以及配置在相位板52上的偏振片51。 偏振器51和相位板52被设置为使得偏振器51的光轴和相位板52的慢轴形成角度θ,并且偏振器51和液晶层56被设置成使得光轴 的偏振片51和液晶层56的光轴形成2θ+ 45度的角度。 液晶的延迟在λ/ 4和λ/ 2之间的范围内变化,以防止黑色显示期间的光通过。
    • 10. 发明申请
    • Color display device and driving method thereof
    • 彩色显示装置及其驱动方法
    • US20060012614A1
    • 2006-01-19
    • US11171191
    • 2005-07-01
    • Yasufumi AsaoRyuichiro Isobe
    • Yasufumi AsaoRyuichiro Isobe
    • G09G5/10
    • G09G3/3607G02F1/133514G02F1/1393G02F2001/134345G09G3/2011G09G3/2044G09G3/2074G09G2300/0452G09G2300/0491G09G2310/06G09G2320/0242G09G2320/0261G09G2320/103G09G2340/16
    • Unit pixels in a color display device each include a first and a second subpixel. The second is provided with a color filter, and each has a medium changing optical properties (hue and brightness of transmitted light) depending on an applied voltage. A voltage is applied to the first subpixel to modulate those optical properties of the medium and a voltage is applied to the second subpixel to modulate the brightness of light passing through the medium disposed at the second subpixel. When display of the color display device is switched, a correction voltage of the second subpixel is calculated from a voltage applied to the first subpixel before the display is switched and a voltage applied to the first subpixel after the display is switched, and the voltage applied to the second subpixel is set to a value obtained by superposing the correction voltage on a voltage determined by the display at the second subpixel in a predetermined period after the voltage applied to the first subpixel is switched. The correction voltage modifies the color of the second subpixel so as to produce an achromatic color at that unit pixel by mixing a chromatic color, transitionally appearing at the first subpixel when the display is switched, with the color of the second subpixel.
    • 彩色显示装置中的单位像素包括第一和第二子像素。 第二个设置有滤色器,并且每个具有根据所施加的电压改变光学性质(透射光的色调和亮度)的介质。 对第一子像素施加电压以调制介质的这些光学特性,并且向第二子像素施加电压,以调制通过设置在第二子像素处的介质的光的亮度。 当切换彩色显示装置的显示时,在切换显示之前,从施加到第一子像素的电压和切换显示之后施加到第一子像素的电压计算第二子像素的校正电压,施加电压 第二子像素被设置为通过在施加到第一子像素的电压被切换之后,在预定时间段内将校正电压叠加在由第二子像素上的显示确定的电压上获得的值。 校正电压通过将显示切换时在第一子像素上传播出现的彩色与第二子像素的颜色混合,在该单位像素处修正第二子像素的颜色,从而产生该单位像素的无彩色。