Electroscopic display device

Details Electroscopic display device Electroscopic display device

1988-05-06

1990-10-23

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

350339R, 350345, G09G 300

Patent

active

049655620

ABSTRACT:
Light losses occurring in an electroscopic display device in which UV radiation (9, 10) is converted into visible light (14, 15, 17) are partly annihilated by making the movable electrodes (7) and the fixed electrodes (4) reflective. The electroscopic display device comprises first and second radiation-transparent supporting plates (2, 3), wherein a plurality of display elements are disposed between the supporting plates (2, 3). A luminescent material (12) is disposed on one of the first and second supporting plates (2, 3) at a viewing side, wherein the luminescent material (12) is disposed between the first and second supporting plates (2, 3) adjacent to and facing the electrodes (4, 7) such that the electrodes (4, 7) reflect radiation emitted by the luminescent material (12) to increase the passage of radiation through the viewing side of the display. An extra advantage is that a diffuse light source can then be used.

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