Oscillating photovoltaic optical shutter for reflective display

Details Oscillating photovoltaic optical shutter for reflective display Oscillating photovoltaic optical shutter for reflective display

1990-06-13

1992-10-06

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

40448, 40465, 359 72, G02F 11335, G02F 1135

Patent

active

051537605

ABSTRACT:
An optical shutter operated device includes a reflector to reflect incident light and a liquid crystal light shutter interposed in front of the reflector. A photovoltaic cell is disposed behind the shutter and is illuminated by the incident light thereby supplying a control voltage to the liquid crystal light shutter for causing it to alternate cyclically between a relatively transparent state and a relatively opaque state.

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patent: 4893903 (1990-01-01), Thakar et al.
patent: 4940313 (1990-07-01), Hamatani

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