Display element and display apparatus
US5636072A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Apr 12, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F9/372
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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 displa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.