A 3.5-inch, 60×120 pixels, reflective-type carbon nanotube emitter field-emission display has been fabricated by thick-film process. A seven-segment numerical indicator showing digit image was also demonstrated using opposed diode structure as comparison. The technical development, including design and fabrication of the nanotube emitters, phosphor, and vacuum package process was described.

A 4‐inch, 64×256 pixels, diode structure carbon nanotubes (CNT) field emission displays have been fabricated after screen printing and vacuum sealing process. The design and process for CNT‐emitters arrays of triode structure were studied and developed. The dielectric layer and gate electrode were fabricated by printing on cathode plate.

A 10-inch, 240×320 pixels, triode structure color carbon nanotube field emission display (CNT-FED) was fabricated after screen printing, photolithography and vacuum sealing process. The new normal on driving method was applied in triode CNT-FED, and the resolution was improved better than normal off FED.

Carbon nanotube (CNT) is an excellent field while for microwave devices a much larger current density emitter due to its small diameter (1-40 nm), high aspect ratio (> lA/cm2) is preferred.(>103), and high theoretical current limit (-1jA / SWNT). Methods for assembling and integrating SWNTs orThe applications like CNT-FED or 11PM require uniform MWNTs onto a device surface to form a cathode include distribution of field emission current, low turn-on field, and high current density. However, macroscopic cathodes made plasma enhanced chemical vapor deposition (PECVD) [4], from CNTs for CNT-FED and microwave devices have been p shown to exhibit low emission site density (103-104 sites/cm2) water assisted CVD [5], electrophoresis deposition [6], compared to CNT density (109-101o /cm2 ), non-uniformity in spray coating of CNT mixture [7], and screen printing from emission sites distribution, and lower current density a paste mixture of CNTs [8]. Thermal CVD or PECVD achievable than dispenser cathode. The non-uniformity of can grow CNTs directly inside a 30 ,um hole, but the emission sites distribution is closely related to field screening length and uniformity across a panel size area is difficult to effect at individual sites. Only the CNTs with the highest achieve. Screen printing is a cost effective method, but the local electric field can emit current. The effect of field resolution of an ordinary screen is usually larger than 200,um enhancement factor, which is a strong function of local microstructure and a result of manufacture method, is found and

A fully sealed field emission display (FED), indicator, using carbon nanotubes (CNTs) as emitters is examined. The CNTs chunk, synthesized by arc discharge, were crushed, mixed with conductive pastes and then screen-printed on glass for the cold cathode. And the anode plate, an ITO glass printed P15 phosphor, was separated from cathode using 90pm spacers. The indicator display performed a turn-on voltage as low as 250 V, and the emission current density 2.2 mA/cm 2 under 300 V with brightness of 500 nits. The pixels, driven by open drain IC with 5 V gate voltage, showed the clock image which indicated the application of CNTs-FED. No significant degradation of this performance was observed during 1000 mins testing. The influence of printing condition and surface treatment process on the emission characteristics will also be discussed in this letter.