Organic EL display apparatus and method of driving the same

Details Organic EL display apparatus and method of driving the same Organic EL display apparatus and method of driving the same

2006-04-04

2006-04-04

Lee, Wilson (Department: 2821)

Electric lamp and discharge devices: systems

Plural power supplies

Plural cathode and/or anode load device

C345S054000, C345S096000

Reexamination Certificate

active

07023140

ABSTRACT:
An organic EL display apparatus which can improve the reliability thereof, by avoiding a leak current which occurs after an operating time, without reducing the product yield. The organic EL display apparatus is comprised of an organic EL panel section, and a driving section which has a reverse voltage restriction unit (means for restricting a reverse voltage) for restricting a reverse voltage which is applied when organic EL devices are not lighted. When a breakdown voltage with respect to a preset thickness doof the organic material layer has been Vb, the reverse voltage restriction unit will not only set the reverse voltage Vm(to be applied during a non-lighting period) to Vm<(½)·Vb, but also restrict the continuous applying time of this reverse voltage Vmwithin a preset period.

REFERENCES:
patent: 5679472 (1997-10-01), Wu et al.
patent: 5748165 (1998-05-01), Kubota et al.
patent: 6809481 (2004-10-01), Seo et al.
patent: 6815891 (2004-11-01), Eden et al.
patent: 11-305727 (1999-05-01), None

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