Optical: systems and elements – Miscellaneous
Patent
1995-04-12
1997-06-03
Phan, James
Optical: systems and elements
Miscellaneous
359196, 310328, G02B 2608
Patent
active
056360720
ABSTRACT:
A display element includes: an actuator including a piezoelectric film having a pair of surfaces and a pair of electrodes coated onto at least a portion of each of a pair of respective surfaces of the piezoelectric film; a movable flexing portion, in contact with one of the pair of electrodes, to support the actuator; a fixed portion for holding the flexing portion so that the flexing portion can move; means, connected to the actuator, for transmitting a displacement of the actuator; and a plate for transmitting light, disposed closely to the displacement-transmitting means. In this display element, a voltage is applied into the actuator through the pair of electrodes so as to control a rest position and a displacement of the actuator as well as a contact and a separation between the displacement-transmitting means and the plate so that a light emission at a predetermined position in the plate is controlled. Alternatively, a display element may include a laminated piezoelectric body having a plurality of piezoelectric layers and a plurality of electrode layers, wherein the piezoelectric layers and the electric layers are laminated. A display apparatus includes a plurality of display elements. The display element and the display apparatus have quick response, consume little electric power, have a small size, and have high brightness of a screen. Further, a colored screen does not need to increase the number of picture elements in comparison with a monochrome screen.
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Patent Abstracts of Japan, vol. 16, No. 330 (P-1388), 17 Jul. 1992.
IBM Technical Disclosure Bulletin, vol. 30, No. 6, Nov. 1987.
Frohbach Hugh F.
Pelrine Ronald E.
Shibata Kazuyoshi
Shrader Eric J.
Takeuchi Yukihisa
NGK Insulators Ltd.
Phan James
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