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    • 3. 发明授权
    • Matrix display device
    • 矩阵显示设备
    • US4736137A
    • 1988-04-05
    • US77504
    • 1987-07-24
    • Jun-ichi OhwadaMasaaki KitajimaHideaki Kawakami
    • Jun-ichi OhwadaMasaaki KitajimaHideaki Kawakami
    • G09G3/20G09G3/30G09G3/36G09G3/10
    • G09G3/3688G09G3/30G09G3/3666G09G2300/0408G09G2300/08G09G2310/027
    • In a matrix display device, a signal drive circuit comprises selection means for sequentially selecting at least one of display information signals corresponding to a plurality of signal electrodes when at least one of a plurality of scan electrodes is selected, hold means for holding the display information signal selected by the selection means until selection of at least corresponding scan electrode is completed, and voltage conversion means for selecting one of a plurality of voltage levels in accordance with the display information signal held by the hold means and supplying the selected voltage level to the signal electrodes. Since the display information signal is held by the hold means until the selection of at least corresponding scan electrode is completed, one of the plurality of voltage levels is always applied to the signal electrodes and the switching elements do not assume the high impedance state. Accordingly, ununiformity in display image is prevented and a large size matrix display device is provided.
    • 在矩阵式显示装置中,信号驱动电路包括选择装置,用于当选择多个扫描电极中的至少一个时,依次选择与多个信号电极相对应的显示信息信号中的至少一个,用于保持显示信息的保持装置 由选择装置选择的信号直到选择至少相应的扫描电极完成;以及电压转换装置,用于根据由保持装置保持的显示信息信号选择多个电压电平中的一个,并将选择的电压电平提供给 信号电极。 由于显示信息信号由保持装置保持,直到至少对应的扫描电极的选择完成,所以多个电压电平中的一个总是被施加到信号电极,并且开关元件不呈现高阻抗状态。 因此,防止了显示图像的不均匀性,并且提供了大尺寸矩阵显示装置。
    • 6. 发明授权
    • Plane display
    • 平面显示
    • US5283566A
    • 1994-02-01
    • US869085
    • 1992-04-15
    • Akio MimuraKikuo OnoTakashi SuzukiMasao YoshimuraNobutake KonishiJun-ichi Ohwada
    • Akio MimuraKikuo OnoTakashi SuzukiMasao YoshimuraNobutake KonishiJun-ichi Ohwada
    • G02F1/1362G09G3/36
    • G02F1/136213
    • A plane display includes a plurality of pixel capacitors, each of which includes first and second electrodes and a non-linear optical material disposed therebetween. A plurality of storage capacitors are respectively provided in association with the plurality of pixel capacitors, each of which includes the first electrode of the corresponding pixel capacitor, an insulating film, and a third electrode insulated from the first electrode through the insulating film and connected to an external power supply terminal. Additionally, a provided for each storage capacitor and connected between the third electrode of the associated storage capacitor and the external power supply terminal, for preventing a potential drop causable in the course of storing electric charge in the associated storage capacitor.
    • 平面显示器包括多个像素电容器,每个像素电容器包括第一和第二电极以及设置在它们之间的非线性光学材料。 分别与多个像素电容器相关联地设置多个存储电容器,每个像素电容器包括相应的像素电容器的第一电极,绝缘膜和通过绝缘膜与第一电极绝缘的第三电极,并连接到 外部电源端子。 此外,为每个存储电容器提供并连接在相关联的存储电容器的第三电极和外部电源端子之间,用于防止在相关联的存储电容器中存储电荷的过程中引起的电位降低。
    • 10. 发明授权
    • Method of driving an active matrix liquid crystal display panel with
asymmetric signals
    • 驱动具有不对称信号的有源矩阵液晶显示面板的方法
    • US5640174A
    • 1997-06-17
    • US574573
    • 1995-12-14
    • Tatsuo KameiKenichi IwamotoYoshio OwakiJun-ichi Ohwada
    • Tatsuo KameiKenichi IwamotoYoshio OwakiJun-ichi Ohwada
    • G09G3/20G09G3/36
    • G09G3/2011G09G3/3648G09G3/3696G09G2320/0204G09G3/3614
    • A method for driving a liquid crystal display device including a TFT liquid crystal display panel. The TFT liquid crystal display panel includes a plurality of pixel electrodes, a common electrode opposing the pixel electrodes, and a liquid crystal layer disposed between the pixel electrodes and the common electrode. The method includes the steps of generating a plurality of positive gradation voltages with a first voltage dividing resistor circuit, the first voltage dividing resistor circuit being a single series circuit formed by a plurality of resistors connected in series, each of the positive gradation voltages being higher than a midpoint voltage Vasc, generating a plurality of negative gradation voltages with a second voltage dividing resistor circuit, the second voltage dividing resistor circuit being a single series circuit formed by a plurality of resistors connected in series, each of the negative gradation voltages being lower than the midpoint voltage Vasc and being paired with a respective one of the positive gradation voltages, thereby providing a plurality of paired positive and negative gradation voltages, and applying the positive gradation voltages and the negative gradation voltages to the pixel electrodes in accordance with a display signal representing information to be displayed on the TFT liquid crystal display panel. Respective averages of the paired positive and negative gradation voltages are positive, and increase with respect to a reference voltage VC as respective differences between the paired positive and negative gradation voltages decrease, the reference voltage VC being lower than the midpoint voltage Vasc.
    • 一种用于驱动包括TFT液晶显示面板的液晶显示装置的方法。 TFT液晶显示面板包括多个像素电极,与像素电极相对的公共电极以及设置在像素电极和公共电极之间的液晶层。 该方法包括以下步骤:利用第一分压电阻电路产生多个正的灰度级电压,所述第一分压电阻器电路是由串联连接的多个电阻器形成的单个串联电路,每个正的灰度级电压较高 比中点电压Vasc,利用第二分压电阻电路产生多个负灰度电压,第二分压电阻电路是由串联连接的多个电阻器形成的单个串联电路,每个负灰度电压较低 并且与正的灰度等级电压中的相应一个配对,从而提供多个成对的正和负灰度电压,并且根据显示器向像素电极施加正灰度级电压和负灰度电压 代表信息的信号 在TFT液晶显示面板上。 成对的正和负灰度级电压的相应平均值为正,并且相对于参考电压VC增加,因为成对的正和负灰度电压之间的差异减小,参考电压VC低于中点电压Vasc。