Project Title:

Low-Voltage, Thin-Film Electroluminescent Phosphor

09.09-3100
NAS9-18323
Low-Voltage, Thin-Film Electroluminescent
	Phosphor
Optron Systems, Inc.
	3 Preston Court
	Bedford, MA 01730
		Camille F. Fuleihan
(617-275-3100)

Abstract:

	High-resolution, full-color, thin-film-electroluminescent, flat-panel displays for
critical spacecraft applications will require higher pixel densities than can be
supported by conventional thin-film electroluminescent (TFEL) phosphor technology.
This is due to the high operating voltages required by these devices and the likelihood
of arcing at small pixel spacings. However, it may be possible to reduce the required
operating voltages by utilizing such recently developed deposition-enhancement techniques
as ion-beam-assisted deposition in conjunction with new, dielectric films based on
diamond-like hydrogenated amorphous carbon to reduce the thickness of the phosphor
layers. Reduced voltage requirements would also allow development of more compact
and lightweight monolithic displays with higher brightness, longer lifetimes, and
higher resolution than are achievable with conventional TFELs.

Potential Commercial Application:

Potential Commercial Applications: The low-voltage thin-film electroluminescent phosphor
would have commercial applications in high-performance flat-panel display systems.
In addition, the device may prove useful for large-area light panels.