| 摘要 |
A display device comprising a light guide ( 12 ), a back plate ( 14 ), a flexible element ( 15 ) arranged in between said light guide ( 12 ) and said back plate ( 14 ), and addressable electrodes ( 23 ) for inducing electrostatic forces on said element ( 15 ) a for bringing selected portions of said element ( 15 ) into contact with said light guide ( 12 ), in order to extract light from said light guide ( 12 ). The addressable electrodes ( 23 ) are arranged only on one of said light guide ( 12 ) and said back plate ( 14 ), and a biasing force acts on said flexible element ( 15 ) in a direction away from said addressable electrodes ( 23 ). The voltages required to operate the display will also be lower compared to the conventional foil display. In principle it is feasible to keep the electrode of the flexible element at ground potential while applying 10-20V pulses to the addressable electrodes to overcome the biasing force.
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