发明授权
- 专利标题: Display element and display apparatus
- 专利标题(中): 显示元件和显示装置
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申请号: US420783申请日: 1995-04-12
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公开(公告)号: US5636072A公开(公告)日: 1997-06-03
- 发明人: Kazuyoshi Shibata , Yukihisa Takeuchi , Hugh F. Frohbach , Eric J. Shrader , Ronald E. Pelrine
- 申请人: Kazuyoshi Shibata , Yukihisa Takeuchi , Hugh F. Frohbach , Eric J. Shrader , Ronald E. Pelrine
- 申请人地址: JPX
- 专利权人: NGK Insulators, Ltd.
- 当前专利权人: NGK Insulators, Ltd.
- 当前专利权人地址: JPX
- 主分类号: G02B26/02
- IPC分类号: G02B26/02 ; G02B26/08 ; G09F9/30 ; G09F9/37
摘要:
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.
公开/授权文献
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