Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-11-01
2005-11-01
Chow, Dennis-Doon (Department: 2675)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S094000, C345S095000, C345S096000, C345S097000
Reexamination Certificate
active
06961036
ABSTRACT:
A single polar driving method for a cholesteric liquid crystal display. The method comprises the steps of selecting the pixels by applying a first signal switching between a ground and a first level to the common line of the selected pixels, driving the selected pixels into a reflecting state by applying a second signal out of phase with the first signal and that switches between a second and third levels to the segment lines thereof, driving the selected pixels into a transparent state by applying a third signal in phase with the first signal and that switches between the second and third levels to the segment lines thereof, and deselecting the pixels by applying a fourth signal fixed at a fourth level to the common lines thereof.
REFERENCES:
patent: 5933203 (1999-08-01), Wu et al.
patent: 6268840 (2001-07-01), Huang
patent: 6717561 (2004-04-01), Pfeiffer et al.
Chen Chien-Pin
Chen Yen-Chen
Chiu Sheng-Ren
Lai Chia-Cheng
Chow Dennis-Doon
Himax Technologies Inc.
Ladas & Parry LLP
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