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介绍了一种新的能实现反射-透射可调的液晶显示器件制作技术,它是由相变型宾主(PCGH)效应层和一聚合物分散液晶(PDLC)层直接结合构成的。当施加的电压增加时,PCGH层首先被驱动,而PDLC由于需要更高的阈值电压没有被驱动,仍保留散射态,它充当散光板的作用,因此可获得一黑白的反射显示态。当施加足够高的电压时,不仅PCGH层被驱动,而且PDLC层也能被驱动,于是PDLC对光的散射能力被消除,可获得一透射显示态。结果表明,两态显示都能实现适宜的对比度,具有高亮度,宽视角的显示。
A new fabrication technology of reflective - transmissive liquid crystal display device is introduced. It is composed of a PCGH effect layer and a polymer dispersed liquid crystal (PDLC) layer. When the applied voltage is increased, the PCGH layer is driven first, while the PDLC is not driven because a higher threshold voltage is required. The scattering state is retained, which acts as a diffuser and thus produces a black-and-white reflective display state. When a sufficiently high voltage is applied, not only the PCGH layer is driven, but also the PDLC layer can be driven so that the PDLC’s ability to scatter light is eliminated and a transmissive display state is achieved. The results show that the two-state display can achieve the appropriate contrast, with high brightness, wide viewing angle display.