Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-03-28
2006-03-28
Chang, Kent (Department: 2675)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S211000, C330S253000, C327S563000
Reexamination Certificate
active
07019730
ABSTRACT:
An operational amplifier having a first step-up circuit in the power supply circuit generates a first stepped-up potential level obtained by stepping up a power-supply level with a ground level taken as a reference. A regulator circuit generates a center potential obtained by regulating the first stepped-up potential level by referring to a reference potential level with the ground level taken as a reference. A second step-up circuit generates a second stepped-up potential level obtained by stepping up the center potential with the ground level taken as a reference. A multipotential generating circuit generates a plurality of potential levels from a difference between the second stepped-up potential level and the center potential with the ground level taken as a reference, and supplies those potential levels to the panel of the liquid crystal device that is driven by an MLS driving scheme.
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U.S. Appl. No. 09/817,082, filed Mar. 27, 2001, Tsuchiya.
Chang Kent
Oliff & Berridg,e PLC
Seiko Epson Corporation
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