Matrix display devices

Details Matrix display devices Matrix display devices

2005-04-05

2005-04-05

Tran, Henry N. (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S087000, C345S092000, C345S098000, C345S100000, C345S204000

Reexamination Certificate

active

06876349

ABSTRACT:
Digital to analogue conversion in an AMLCD is obtained by using the column electrode capacitance as part of the digital to analogue conversion circuit by dividing columns (19) into separate sections and serially performing the conversion via switching elements (31). Alternative embodiments comprise a column driver circuit with capacitors having a (binary) divided range of capacitance or use column sub-electrodes of different widths.

REFERENCES:
patent: 5448258 (1995-09-01), Edwards
patent: 5852425 (1998-12-01), Bird et al.
patent: 6157358 (2000-12-01), Nakajima et al.
patent: 6380917 (2002-04-01), Matsueda et al.
patent: 6552707 (2003-04-01), Fujiyoshi
patent: 0911677 (1999-04-01), None

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