Electroluminescent display with space charge removal

Details Electroluminescent display with space charge removal Electroluminescent display with space charge removal

1991-09-26

1993-01-12

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313506, 3151693, H05B 3314, H01L 3300

Patent

active

051793164

ABSTRACT:
An electroluminescent display device including a semiconductor substrate having a phosphor layer on one face thereof, and a space charge removing means in the semiconductor substrate. The space charge removing means continuously removes carriers, typically electrons, from the space charge barrier region formed during device operation, to thereby reduce space charge barrier related brightness limitations. The space charge removing means may comprise a doped region in the semiconductor substrate adjacent the phosphor layer, which is DC biased to continuously remove electrons from the space charge region. Alternatively, the doped region in the substrate adjacent the phosphor layer may inject electrons into the phosphor layer, with space charge removal being accomplished by a DC biased substrate contact. The space charge region in the substrate is reduced or eliminated thereby increasing the maximum number of electrons which can be injected into the electroluminescent layer and increasing the brightness of the display device.

REFERENCES:
patent: 3806759 (1974-04-01), Kabaservice et al.
patent: 4486499 (1984-12-01), Morimoto
patent: 4554485 (1985-11-01), Yamada
patent: 4603280 (1986-07-01), Pankove
patent: 4613793 (1986-09-01), Panicker et al.
patent: 4720432 (1988-01-01), VanSlyke et al.
patent: 4751427 (1988-06-01), Barrow et al.
patent: 5107318 (1992-04-01), Makiuchi et al.
Evaluation Technology of VLSI Reliability Using Hot Carrier Luminescence, Y. Uraoka et al., IEEE Transactions on Semiconductor Manufacturing, vol. 4, No. 3, Aug. 1991, pp. 183-192.

Affiliated with

Also associated with

Rating

Electroluminescent display with space charge removal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electroluminescent display with space charge removal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electroluminescent display with space charge removal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1222283