Display control device

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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Details

C345S098000

Reexamination Certificate

active

07659878

ABSTRACT:
A display control device has: a shift register generating n shift pulses in series; a data hold block configured to hold n gradation data; and a DA converter for converting the n gradation data into corresponding gradation voltages. The data hold block includes: n first latch circuits configured to respectively latch the n gradation data in series in synchronization with the n shift pulses; and n second latch circuits provided between the DA converter and the n first latch circuits. An electrical connection between the first latch circuits and the second latch circuits is cut off while the first latch circuits receive the n gradation data. After the first latch circuits finish latching all the gradation data, the n gradation data are simultaneously supplied to the DA converter from the first latch circuits through the second latch circuits.

REFERENCES:
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patent: 2004/0257328 (2004-12-01), Lim
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patent: 2007/0216631 (2007-09-01), Nojiri
patent: 2009/0066678 (2009-03-01), Tanaka
patent: 2004-301513 (2004-10-01), None

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