Electroluminescent device with sufficient luminous power and...

Details Electroluminescent device with sufficient luminous power and... Electroluminescent device with sufficient luminous power and...

2005-05-03

2005-05-03

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S247000, C347S248000, C315S169300

Reexamination Certificate

active

06888557

ABSTRACT:
An EL device includes a control unit that controls a driving circuit so that a plurality of EL elements emits light several times per driving cycle. Specifically, when a driving voltage is applied to the plurality of EL elements, the plurality of EL elements emits several times per driving cycle. As a result, since the amount of light integrated per time increases, the plurality of EL elements obtains high luminous power even if a plurality of El elements having a very short emission decay time is used.

REFERENCES:
patent: 5216331 (1993-06-01), Hosokawa et al.
patent: 5325277 (1994-06-01), Suzuki et al.
patent: 5847516 (1998-12-01), Kishita et al.
patent: 20010052926 (2001-12-01), Hori
patent: A-05-221019 (1993-08-01), None
patent: A-9-54566 (1997-02-01), None
Tanaka et al., “Excitation Mechanism in Red Cas:Eu and Blue SrS:Ce, K Thin Film Electroluminescent Devices,”Japan Display, 1986, pp. 242-245.
Tuenge et al., “A QVGA AMEL Microdisplay with Improved Color Performance,”Asia Display, IDW, 2001, pp. 1071-1074.

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