A. Summary

1. Vacuum Tubes, Semiconduct. Transistors, Microfab. Integrated Circuits
a. General progression in electronics but tubes still superior in displays
b. FED combines best of CRT's and microfabricated FPD's #1
1) High image quality afforded by phosphors
2) Microfabrication allows flat, lightweight, low-power
3) Brighter, wider viewing angle, more efficient than AMLCD's

4) Elimination of bulky deflection coils, inefficient optical filters
5) Simple, redundant design should decrease cost/increase yield
6) DFED's should have very lowest manufacturing costs

2. Key to FED is the cold micro-cathode (FEA's)
a. Field-emission not thermionic emission
b. Can microfabricate metal or silicon tips
c. Can use diamond film as well
d. Uniformity of microcathodes over LARGE surface is key
e. Size limited: hard to cover LARGE area with identical sharp tips

B. The Current and Future for FED's

1. AMLCD's still dominates (96% made in Japan) #1
2. When FED's perfected, they should takeover since superior
3. FED's may redeem struggling U.S. display technology
4. Many U.S. companies now vigorously developing FED's:

a. Micron Display Technology Inc., Boise, Idaho
1) Already built two 0.7" prototypes (mono, color)
2) Prototypes partly funded by $10 Million Gov ARPA Grant
3) Currently working on 14" display

b. SI Diamond Technology, Corp (SIDT) Houston, Texas
1) Allied with Microelectronics & Computer Tech. Corp.
2) Co-Inventor of DFED, Dr. Nalin Kumar works there
3) Already made the 1" prototypes

c. FED Corporation (Hopewell Junction, NY)
1) Gary Jones president (worked with Temple et al.)
2) > $7 Million Gov Funding (Airforce, NASA, Army) #1
3) Collaborates with Lawrence Livermore / Sandia National Labs
4) Trying to reduce switching voltages to 5V level
5) Dedicated manufacturing facility to make 10.4" displays
6) Made 7.1" VGA displays for 1995

5. Future Applications:
a. 1 inch thick hanging TV sets
b. Low-cost, full-color lap-top computer displays
c. Head-mounted displays

  • Main Outline
  • Sources