Electro-optical device, driving circuit of the same, driving...

Details Electro-optical device, driving circuit of the same, driving... Electro-optical device, driving circuit of the same, driving...

2005-03-31

2009-02-17

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

07492342

ABSTRACT:
The electro-optical device having a driving circuit that detects the phase difference between a monitoring signal supplied in synchronization with a data signal and a reference pulse supplied in synchronization with an enable pulse. The driving circuit outputs the result as a phase difference signal. A first phase adjusting circuit roughly adjusts and a second phase adjusting circuit minutely adjusts the phase of the enable pulse. An adjustment control circuit, when the phase of the monitoring signal is delayed with respect to the reference pulse, controls the first circuit to advance the phase of the enable pulse and controls the second circuit to minutely adjust the phase to minimize the difference. When the phase of the monitor signal precedes that of the reference pulse, the adjustment control circuit controls the first circuit to delay the phase of the enable pulse and controls the second circuit to minutely adjust the phase to minimize the difference.

REFERENCES:
patent: 6300807 (2001-10-01), Miyazaki et al.
patent: 6489824 (2002-12-01), Miyazaki et al.
patent: 2003/0151713 (2003-08-01), Aoki
patent: A-6-204792 (1994-07-01), None
patent: A-2000-298532 (2000-10-01), None
patent: A-2003-66888 (2003-03-01), None
patent: A-2003-157063 (2003-05-01), None
patent: A-2003-157064 (2003-05-01), None

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