Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2011-01-04
2011-01-04
Tran, My-Chau T (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S087000, C345S090000
Reexamination Certificate
active
07864148
ABSTRACT:
The present invention relates to a display device comprising a bistable nematic liquid-crystal matrix screen with anchoring breaking, characterized in that it comprises:components (40) capable of switching between an off state and an on state, these components being placed respectively between a drive electrode (47) associated with each pixel and a display state control link (45); andmeans capable of applying, to the input of each aforementioned component (40), via the state control link (45), input signals comprising at least two phases separated by a controlled time interval, namely a first phase during which the input signal has an amplitude sufficient to permit breaking of the anchoring of the liquid crystal on the associated pixel, then a second phase during which the amplitude of the input signal is controlled in order to select one of the two bistable states of the liquid crystal, the time interval between the two phases being adapted in order to break the anchoring of the liquid crystal on the said associated pixel before the second input signal phase is applied.
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Angele Jacques
Boissier Alain
Leblanc François
Martinot-Lagarde Philippe
Foley & Lardner LLP
Nemoptic
Tran My-Chau T
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