Display device with cathode containing lithium

Details Display device with cathode containing lithium Display device with cathode containing lithium

2007-01-09

2007-01-09

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S498000, C313S506000

Reexamination Certificate

active

11178659

ABSTRACT:
A top-emitting display unit is fabricated by the following steps: A lower electrode is formed on a substrate. An organic layer including a luminescent sublayer is formed on the lower electrode. Furthermore, an upper electrode containing lithium is formed by a sputtering process into a thickness of 7 nm to 21 nm. The upper electrode functions as a cathode. The lithium content in the upper electrode is in the range of 0.3 to 1.9 percent by weight. In the sputtering process, the upper electrode is preferably formed at a deposition rate of 50 nm/min or less.

REFERENCES:
patent: 6420031 (2002-07-01), Parthasarathy et al.

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