本文乃是結合光學投影機與液晶顯示器所做成的液晶投影顯示器。利用電腦或電荷耦合影像攝影機將資料或外界影像送入液晶面板，再利用投影顯示的光學組件將面板上的影像投射出來。再者，也可將液晶面板、電腦和電荷耦合影像攝影機移除，直接用投影片代替，作為一光學投影機。 光源為本實驗的一大重點，其驅動電路由傳統的大型線性變壓器改為體積小、效率高的交換式電源供應器。因光源所產生的熱對液晶面板會有不良的影響，所以系統的散熱問題也是不可疏忽的重要關鍵。實驗最後對投射之影像作光輸出、對比度和均勻度的量測。 In this study, optical projector and liquid crystal display are combined to make a liquid crystal display optical projector. It gets data or image form of outside objects by computer or CCD Camera. Then it sends to the liquid crystal panel and projects the image form by using the optical elements of the projector. Furthermore, it can move the liquid crystal panel, computer and CCD Camera away. And instead, a transparency can be inserted in directly to be used an optical projector. The light source is very important. And the driver circuit is not a traditional linear power supply. It changes to a smaller size and highly efficient of the switched-mode power supply. The heat produced by the light source will damage the liquid crystal panel, so the radiator of the system is the key point. At last, we will measure the image, the light output, contrast ratio and uniformity form of the projector.
