Display device with variable-bias driver

摘要

A liquid crystal display has a plurality of buffers 46 controlling a plurality of column lines. The buffers have a bias current control input 47 which is controlled, in the example by timing circuitry 50 , to current during the row period for writing to each row of pixels. In particular, the row period may be divided between a drive period with a high buffer bias current and a voltage maintenance period with a lower buffer bias current.