Liquid crystal display device with driving method to eliminate blur due
to frequency dependence
    1.
    发明授权
    Liquid crystal display device with driving method to eliminate blur due to frequency dependence 失效
    具有驱动方法的液晶显示装置,以消除由频率依赖引起的模糊

    公开(公告)号:US4701025A

    公开(公告)日:1987-10-20

    申请号:US766944

    申请日:1985-08-19

    IPC分类号: G02F1/133 G09G3/36 G02F1/13

    CPC分类号: G09G3/3614

    摘要: Between a liquid crystal module and a control circuit for controlling said liquid crystal module, there are provided that a counter circuit for counting down a timing signal given by said control circuit and an exclusive-OR circuit whose inputs are square wave pulses delivered from said counter circuit and square wave pulses given by said control circuit with a period of twice the frame period. The polarity of voltages applied to liquid crystal module is reversed by square wave pulses delivered from the exclusive-OR circuit with frequency higher than the frame frequency.

    摘要翻译: 在液晶模块和用于控制所述液晶模块的控制电路之间,设置有用于对由所述控制电路给出的定时信号进行计数的计数器电路和输入是从所述计数器传送的方波脉冲的异或电路 由所述控制电路给出的周期为帧周期的两倍的电路和方波脉冲。 施加到液晶模块的电压的极性由频率高于帧频的异或电路传送的方波脉冲反转。

    Liquid crystal display device
    2.
    发明授权
    Liquid crystal display device 失效
    液晶显示装置

    公开(公告)号:US4702560A

    公开(公告)日:1987-10-27

    申请号:US785652

    申请日:1985-10-09

    IPC分类号: G02F1/133 G09G3/36

    CPC分类号: G09G3/3644 G09G3/3614

    摘要: A liquid crystal display device comprising a liquid crystal module including liquid crystal display panel having a plurality of liquid crystal picture elements arranged in a matrix form, and driving circuits for applying driving signals to signal electrodes and to scanning electrodes of the liquid crystal display panel, respectively; a control circuit for controlling the operation of the liquid crystal module; a first circuit for dividing frequency of a timing signal given by the control circuit and producing a first signal of lower frequency; and a second circuit for inverting the first signal of lower frequency once per frame period and generating a second signal to reverse the polarity of voltages applied to liquid crystal display elements with its period .tau..sub.M" satisfying the inequality2.0.ltoreq..tau..sub.F (the frame period)/.tau..sub.M" .ltoreq.6.0.

    摘要翻译: 一种液晶显示装置,包括具有液晶显示面板的液晶显示面板,液晶显示面板具有以矩阵形式配置的多个液晶像素,以及用于向液晶显示面板的信号电极和扫描电极施加驱动信号的驱动电路, 分别; 用于控制液晶模块的操作的控制电路; 用于分配由控制电路给出的定时信号的频率并产生较低频率的第一信号的第一电路; 以及第二电路,用于每帧周期反转较低频率的第一信号,并产生第二信号,以使其周期τM满足不等于2.0的τF(反向施加到液晶显示元件的电压的极性) 帧周期)/ tau M“

    Light source for planar illumination in liquid crystal device
    5.
    发明授权
    Light source for planar illumination in liquid crystal device 失效
    液晶装置平面照明光源

    公开(公告)号:US5064276A

    公开(公告)日:1991-11-12

    申请号:US374148

    申请日:1989-06-30

    摘要: A light source device disposing light sources at both end faces of the transparent plate in which a surface of the transparent plate in the side of an observer (front surface) is formed as the inclined and curved surface in view of limiting reduction in quantity of light per unit area at the observing area being far from the light source within a certain level, the one surface of the transparent plate is formed as the rough surface to diffuse the incident light, the other surface of the transparent plate is formed as a mirror-surface, and a reflecting layer having a high lightness is disposed at the lower side of the transparent plate in order to provide sufficient luminance for observers.

    摘要翻译: 一种光源装置,在透明板的两个端面处设置光源,其中观察者侧(透明板的表面)的表面形成为倾斜和弯曲的表面,以限制光的减少 在观察区域的远离光源的单位面积在一定水平内,透明板的一个表面形成为粗糙表面以扩散入射光,透明板的另一个表面形成为镜面 - 表面和具有高亮度的反射层设置在透明板的下侧,以便为观察者提供足够的亮度。

    Memory circuit for generating liquid crystal display characters
    8.
    发明授权
    Memory circuit for generating liquid crystal display characters 失效
    用于产生液晶显示字符的存储电路

    公开(公告)号:US4414545A

    公开(公告)日:1983-11-08

    申请号:US329047

    申请日:1981-12-09

    CPC分类号: G09G3/3611 G09G5/222

    摘要: A liquid crystal display character generator circuit comprises a first RAM for temporarily storing information to be displayed on a liquid crystal display unit, a ROM for storing standard character patterns corresponding to the information to be displayed, a second RAM operable to store special character patterns corresponding to the information to be displayed, and a data selector for enabling the designation of an address in one of the ROM and the second RAM in accordance with the information stored in the first RAM.

    摘要翻译: 一种液晶显示字符发生器电路,包括用于临时存储要显示在液晶显示单元上的信息的第一RAM,用于存储与要显示的信息相对应的标准字符图形的ROM;第二RAM,用于存储对应于 到要显示的信息,以及数据选择器,用于根据存储在第一RAM中的信息使能指定ROM和第二RAM之一中的地址。