G - Physics – 09 – G
Patent
G - Physics
09
G
375/39
G09G 3/36 (2006.01)
Patent
CA 1311066
ABSTRACT OF THE DISCLOSURE A method is provided for addressing a matrix-array type liquid crystal cell with a ferroelectric liquid crystal layer having a plurality of pixels defined by areas of overlap between members of a first set of electrodes on one side of the liquid crystal layer and members of a second set of electrodes on the other side of the liquid crystal layer, each of said pixels having a first and a second state. The response time for switching between said first and said second state depends on the voltage across the liquid crystal layer and shows a minimum at a particular voltage. The method includes the step of applying a strobe waveform to a selected member of said first set of electrodes while a data waveform is applied to each member of said second set of electrodes. A waveform for switching a pixel defined by said selected member comprises a switching pulse of a given voltage magnitude and given duration. A waveform for not switching a pixel defined by said selected member comprises a non-switching pulse of a voltage magnitude greater than said given voltage magnitude of said switching pulse and a duration less than said given duration of said switching pulse.
576468
Bone Matthew Francis
Coulson Ian
Hughes Jonathan Rennie
Ross Peter William
Saunders Frances Carolyn
Bone Matthew Francis
Coulson Ian
Hughes Jonathan Rennie
Northern Telecom Limited
Ridout & Maybee Llp
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