JPS5680730A - Piezoelectric keyboard device - Google Patents

Piezoelectric keyboard device

Info

Publication number
JPS5680730A
JPS5680730A JP15854779A JP15854779A JPS5680730A JP S5680730 A JPS5680730 A JP S5680730A JP 15854779 A JP15854779 A JP 15854779A JP 15854779 A JP15854779 A JP 15854779A JP S5680730 A JPS5680730 A JP S5680730A
Authority
JP
Japan
Prior art keywords
transparent
key
display
appears
piezoelectric film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15854779A
Other languages
Japanese (ja)
Inventor
Hayashi Matsunaga
Shuichi Yamamoto
Hiroshi Nakayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15854779A priority Critical patent/JPS5680730A/en
Publication of JPS5680730A publication Critical patent/JPS5680730A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To enable general display by other display devices as well as key display, by providing transparent electrodes on both surfaces of a transparent high-molecular piezoelectric film.
CONSTITUTION: On the top surface of transparent substrate 7, many supporting projected lines 8 are provided and transparent high-molecular piezoelectric film 10 having transparent electrodes 9a and 9b formed in a matrix pattern shape is fitted onto supporting projected lines 8. On film 10, transparent key display original sheet 14 having key displays 13 of transparent key tops 12 which can be changed with shift key 11 is arranged. On sheets 14, key tops 12 and the shift key are arranged by being held in transparent housing 15. Sheet 14 can be moved by rotating shaft 16 driven and controlled with shift key 11. On the reverse surface of transparent substrate 7, display device 17 consisting of liquid crystal, light emission diodes, a cathode-ray tube, etc., is arranged. The display character of pushed key top 12 appears on display device 17 and on transparent housing 15, general display 18 also appears.
COPYRIGHT: (C)1981,JPO&Japio
JP15854779A 1979-12-06 1979-12-06 Piezoelectric keyboard device Pending JPS5680730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15854779A JPS5680730A (en) 1979-12-06 1979-12-06 Piezoelectric keyboard device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15854779A JPS5680730A (en) 1979-12-06 1979-12-06 Piezoelectric keyboard device

Publications (1)

Publication Number Publication Date
JPS5680730A true JPS5680730A (en) 1981-07-02

Family

ID=15674085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15854779A Pending JPS5680730A (en) 1979-12-06 1979-12-06 Piezoelectric keyboard device

Country Status (1)

Country Link
JP (1) JPS5680730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6351154B2 (en) 1998-08-04 2002-02-26 Lucent Technologies Inc. Phase detector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4850638A (en) * 1971-10-25 1973-07-17
JPS5129030A (en) * 1974-09-06 1976-03-11 Hitachi Ltd
JPS5152234A (en) * 1974-11-01 1976-05-08 Kureha Chemical Ind Co Ltd
JPS5299022A (en) * 1976-02-17 1977-08-19 Nippon Telegr & Teleph Corp <Ntt> Input device for display information of character and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4850638A (en) * 1971-10-25 1973-07-17
JPS5129030A (en) * 1974-09-06 1976-03-11 Hitachi Ltd
JPS5152234A (en) * 1974-11-01 1976-05-08 Kureha Chemical Ind Co Ltd
JPS5299022A (en) * 1976-02-17 1977-08-19 Nippon Telegr & Teleph Corp <Ntt> Input device for display information of character and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6351154B2 (en) 1998-08-04 2002-02-26 Lucent Technologies Inc. Phase detector

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