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US 2001/0054857 A1Published application
Method for manufacturing piezoelectric luminous element
AssigneeSeiko Epson Corporation
InventorsHong Qiu, Koji Sumi, Tsutomu Nishiwaki
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Abstract
Provided is a luminous element which utilizes a tribo-luminescence phenomenon. The luminous element comprises: a pressure luminous layer (14) which emits light upon the application of pressure; and a piezoelectric element which comprises a piezoelectric film (12) held between electrode films (11) and (13), and which is located so as to be capable of applying pressure on the pressure luminous layer.
Claims14
A piezoelectric luminous element comprising:
- a pressure luminous layer for emitting light upon the application of pressure;
- and
- a piezoelectric element comprising a piezoelectric film held between electrode films and being located so as to be capable of applying pressure on said pressure luminous layer.
A method for manufacturing a piezoelectric luminous element, comprising the steps of:
- forming a lower electrode over a substrate;
- forming a piezoelectric film over the lower electrode;
- forming an upper electrode over the piezoelectric film;
- forming a pressure luminous layer for emitting light upon the application of pressure on the upper electrode;
- and
- attaching a substrate to the pressure luminous layer.
3 more elements
A method for manufacturing a display device, comprising the steps of:
- forming a lower electrode over a substrate;
- forming a piezoelectric film over the lower electrode;
- forming an upper electrode over the piezoelectric film;
- forming a pressure luminous layer for emitting light upon the application of pressure on the upper electrode;
- etching the piezoelectric film, the upper electrode, and the pressure luminous layer in a pattern corresponding to a picture element area;
- and
- attaching a substrate to the etched pressure luminous layer.
4 more elements
Dependencies are inferred from the claim text.