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日本日立公司日立研究实验室研制出一种新的液晶显示器,阈值电压底,对比度高是其两个特点。当用于电池或计算器时,该器件能有效地由互补—MOS片直接驱动。这种显示器的阈值电压约为5V,当电压为与互补—MOS片匹配的8V那一档时,达到了60∶1的峰值对比度。 新器件用的液晶是在向列型混合液晶中加进约0.6％重量比的胆甾相液晶。这种液晶配方导致光散射机构的改变,从而降低阈值电压。在此以前,曾经在有记忆功能的显示器中用过向列型/胆甾型混合液晶,与它们相比,新器件所用的液晶中所注入的胆甾
Japan Hitachi Hitachi Research Laboratory developed a new LCD, the threshold voltage, high contrast is its two characteristics. When used in batteries or calculators, the device can be effectively driven directly by complementary-MOS slices. The threshold voltage of this display is about 5V, and a peak contrast of 60: 1 is reached when the voltage is 8V that matches the complementary CMOS chip. The liquid crystal for the new device is a cholesteric liquid crystal in which about 0.6% by weight of the nematic mixed liquid crystal is added. This liquid crystal formulation causes changes in the light scattering mechanism, reducing the threshold voltage. Prior to this, nematic / cholesteric hybrid LCDs were used in displays with memory function. Compared with them, the cholesteric injected into the liquid crystal of the new device