Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Reexamination Certificate
2005-05-17
2005-05-17
Vo, Tuyet T. (Department: 2821)
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
C315S169300, C345S084000, C345S082000, C345S204000
Reexamination Certificate
active
06894436
ABSTRACT:
In a drive method of a light-emitting display panel capable of emitting light in low luminance, the parasitic capacitances of the light-emitting elements disposed in the light-emitting display panel are precharged making use of a reverse bias voltage before they are lit. In this case, a reverse bias voltage created by a reverse bias voltage creation circuit or a peak current being precharged is controlled by selectively grounding control terminals based on dimmer control. In particular, when the light-emitting elements are emitted in low luminance, the reverse bias voltage is output in a low level, thereby the light-emitting elements are prevented from being precharged with an excessive voltage. The above arrangement can realize light emission control in low luminance.
REFERENCES:
patent: 6473064 (2002-10-01), Tsuchida et al.
patent: P2002-244612 (2002-08-01), None
patent: P2002-244616 (2002-08-01), None
Patent Abstracts of Japan Publication No. 09-232074 dated Sep. 5, 1997.
Fujita Daisuke
Henmi Koji
Moriya Keisuke
Suzuki Gen
Togashi Masato
Tohoku Pioneer Corporation
Vo Tuyet T.
LandOfFree
Drive method of light-emitting display panel and organic EL... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drive method of light-emitting display panel and organic EL..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive method of light-emitting display panel and organic EL... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3446048