用于大面积显示的低成本纳米管场发射显示器

Low Cost Nanotube Field Emission Displays for Large Area Applications

我们验证了一个显示视频图像的阴极阵列,它基于6in对角线、QVGA分辨率的碳纳米管,采用了简单的低成本器件结构。该纳米管是利用选择性化学汽相沉积法生长在特定位置上的,对净化阴极具有良好的可控性。该器件结构只需要三个低分辩率的掩膜工序,开关电压为50V。此外,我们的器件设计为较长的显示寿命创造了条件。在一个较小的全熔接密封的试验显示器上,我们已经记录了超过3000小时的寿命,而电流仅下降了20%。

We have demonstrated a carbon nanotube based 6 inch diagonal QVGA cathode array showing video images, using a simple, low cost device structure. The nanotubes are grown in place by selective chemical vapor deposition, leading to a clean cathode with well controlled properties. The device structure requires only 3 low resolution mask steps, and provides a device switching voltage of 50 V. In addition, our device design provides for long display lifetimes. In smaller fully frit-sealed test displays, we have now logged over 3000 hours of lifetime with less than 20% current degradation.