Fabrication and Optimization of Printed Carbon Nanotube Field Emitters for Flat-Panel Display Device

Screen-printing process was adopted to prepare the carbon nanotube cathode. For improving the field emission performance of cold-cathode material, the optimized carbon nanotube cathode fabrication structure was given, and the detailed manufacture process was also described. The photoetched cathode indium-tin-oxide (ITO) stripes including the narrow bar ITO connecting line was fabricated to form the cathode electrodes. The annular silver conducting layer was adopted between the cathode ITO stripes and the carbon nanotube field emitters. The whole display device was packaged by means of glass frit, and vacuum-sealed through the exhaust tube. The fabricated field emission display could display some dot matrix number and characters, which possessed better field emission performance, higher display brightness and good field emission uniformity.