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    • 34. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US06828954B2
    • 2004-12-07
    • US09799908
    • 2001-03-06
    • Toshiaki YoshiharaTetsuya MakinoHironori ShirotoYoshinori Kiyota
    • Toshiaki YoshiharaTetsuya MakinoHironori ShirotoYoshinori Kiyota
    • G09G336
    • G09G3/342G09G2310/0235G09G2310/024G09G2320/0233G09G2320/0633
    • A liquid crystal display device including a liquid crystal panel having a plurality of liquid crystal pixels and a plurality of switching elements provided to correspond to the respective liquid crystal pixels; a back-light, disposed on the rear face of the liquid crystal panel, for emitting red, green and blue lights in a time-divided manner; and a data driver and a scan driver for switching the respective switching elements according to red, green and blue data of the respective pixels, in which the light emitting area of the back-light is divided into a plurality of light emitting areas and the intensity of light to be emitted from each of the divided light emitting areas is adjusted by a back-light control circuit and drive power source so as to compensate for differences in the light transmittance of the liquid crystal panel.
    • 一种液晶显示装置,包括具有多个液晶像素的液晶面板和与各个液晶像素对应地设置的多个开关元件; 背光,设置在液晶面板的背面,以时分方式发射红,绿,蓝光; 以及用于根据各个像素的红色,绿色和蓝色数据切换各个开关元件的数据驱动器和扫描驱动器,其中背光的发光区域被分成多个发光区域,并且强度 通过背光控制电路和驱动电源调整从每个分割的发光区域发射的光,以便补偿液晶面板的透光率的差异。
    • 37. 发明授权
    • Liquid crystal display unit and display control method therefor
    • 液晶显示单元及其显示控制方法
    • US06873311B2
    • 2005-03-29
    • US09044421
    • 1998-03-19
    • Toshiaki YoshiharaAkihiro MochizukiHironori ShirotoTetsuya MakinoYoshinori Kiyota
    • Toshiaki YoshiharaAkihiro MochizukiHironori ShirotoTetsuya MakinoYoshinori Kiyota
    • G02F1/133G09G3/34G09G3/36
    • G09G3/342G09G3/3651G09G2310/0235G09G2310/024G09G2310/061
    • A liquid crystal display unit includes a liquid crystal panel having a plurality of liquid crystal pixels and a plurality of switching elements provided in correspondence to the respective pixels. A back light disposed at the back of the liquid crystal panel and guides red, green, and blue light to the surface thereof; an image memory for storing pixel data PD to be displayed on the respective pixels; an inverted data generating circuit for generating inverted pixel data #PD of the respective pixel data PD; and a control signal generating circuit and a data driver wherein first scanning for writing the pixel data PD with respect to individual pixels of the liquid crystal panel during each period in which red, green, and blue light are emitted in time-sharing manner, and second scanning for writing the inverted pixel data #PD with respect thereto are carried out in this order. Such problems that crosstalk occurs easily, besides response speed thereof is comparatively slow, so that it is not suitable for display of moving picture despite manufacturing cost of STN type display unit is comparatively inexpensive, while because TFT-TN type display unit requires a highly luminous back light, its power consumption is high, viewing angle is narrow, adjustment is difficult in color balance and the like are solved.
    • 液晶显示单元包括具有多个液晶像素的液晶面板和与各像素对应地设置的多个开关元件。 背光设置在液晶面板的背面并将红色,绿色和蓝色光引导到其表面; 用于存储要显示在各个像素上的像素数据PD的图像存储器; 反相数据产生电路,用于产生各像素数据PD的反相像素数据#PD; 以及控制信号生成电路和数据驱动器,其中以分时方式发射红色,绿色和蓝色光的每个周期期间,相对于液晶面板的各个像素写入像素数据PD的第一扫描,以及 以相反的方式执行用于写入反相像素数据#PD的第二扫描。 除了响应速度之外,串扰容易发生的问题比较慢,因此即使STN型显示单元的制造成本比较便宜,也不适合于运动图像的显示,而由于TFT-TN型显示单元需要高度发光 背光,其功耗高,视角狭窄,色彩平衡难于调整等优点。