英国 STC 公司研制出一种造价低的大型平面液晶显示器,其结构如右图所示。新显示器与一般液晶显示器不同,它是一种存贮器件。一般液晶显示器需要脉冲电压保存图象,图象越大越复杂,清晰度越差。新显示器应用了该公司的近晶 A 相液晶材料,当象素通电时,近晶 A 相材料不会劣变还原成液态。每个象素仅能“写 British STC developed a low-cost large-scale flat-panel liquid crystal display, the structure shown on the right. The new display and the general LCD display is different, it is a storage device. General liquid crystal display requires pulse voltage to save the image, the larger the more complex the image, the worse the resolution. The new display uses the company’s smectic A-phase liquid crystal material, which will not deteriorate to liquid state when the pixel is energized. Each pixel can only be "written