在阴极玻璃面板上研发了一种新型的一体式冷阴极.印刷的银浆被烧结后用于形成银底电极.制备了薄层底电极浆料, 其中含有大量碳纳米管.将薄层底电极浆料印刷在银底电极表面, 然后再将普通碳纳米管浆料制作在烘烤的薄层底电极浆料上.利用高纯度氩气作为保护气体, 在烧结炉中对这两种浆料同时进行烧结.烧结后的薄层底电极将和银底电极相互融合在一起, 碳纳米管层则覆盖于薄层底电极的表面.同一阴极像素中制作了两个碳纳米管发射极.备用碳纳米管发射极的存在, 有利于延长整体显示器的使用寿命.利用薄层底电极作为碳纳米管层和银底电极之间的中间层, 能够有效改善碳纳米管的粘贴性能, 同时增强二者之间的可靠欧姆接触.利用碳纳米管作为阴极制作了一体式冷阴极场发射显示器.该显示器具有良好的发光图像质量以及更好的场发射特性.与普通碳纳米管阴极场发射显示器相比, 一体式冷阴极场发射显示器能够将开启场强从2.11 V/μm减小到1.68 V/μm; 将最大场发射电流从905 μA提高到1 866.2 μA; 数值为367 μA场发射电流的电流波动不超过4.5%.该一体式冷阴极场发射显示器已经以稳定的发光亮度而连续运行10余天.

On cathode glass faceplate the new integral type cold cathode was developed. The printed silver slurry was sintered to form the silver bottom electrode. The thin-layer bottom electrode paste including a great deal of carbon nanotube was prepared, and was screen-printed on the silver bottom electrode surface. The ordinary carbon nanotube paste was fabricated on the baked thin-layer bottom electrode paste. The two types of pastes were simultaneous sintered in the sintering furnace with the protection of high purity argon atmosphere. The sintered thin-layer bottom electrode would combine with the silver bottom electrode, which the carbon nanotube layer was covered on its surface. In one cathode pixel there were two carbon nanotube field emitters. Due to the spare carbon nanotube field emitter, the service life of field emission display could be prolonged greatly. Using thin-layer bottom electrode as interface layer between the silver bottom electrode and the carbon nanotube layer, the adhesion property of carbon nanotube was improved and the reliable ohmic contact had also been confirmed. With carbon nanotube as cathode material, the integral type cold cathode field emission display was fabricated, which exhibited good luminescence image quality and better field emission characteristics. Comparing with the ordinary carbon nanotube cathode field emission display, the turn-on electric-field could be reduced from 2.11 V/μm to 1.68 V/μm, the maximum field emission current could be enhanced from 905.7 μA to 1 866.2 μA, and the field emission current fluctuation at 367 μA would not exceed 4.5%. The integral type cold cathode field emission display has subsequently been operated for more than 10 days with stable luminance brightness.