JPS5583922A - Key input device - Google Patents
Key input deviceInfo
- Publication number
- JPS5583922A JPS5583922A JP15795678A JP15795678A JPS5583922A JP S5583922 A JPS5583922 A JP S5583922A JP 15795678 A JP15795678 A JP 15795678A JP 15795678 A JP15795678 A JP 15795678A JP S5583922 A JPS5583922 A JP S5583922A
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- polarization plate
- input
- transparent
- input keys
- 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
Links
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
PURPOSE: To decrease the number of component parts and thus reduce the cost by forming the upper polarization plate containing the transparent input electrodes and the through-holes on the liquid crystal display panel which displays the names of input keys and also securing the function as an insulated layer to the upper polarization plate.
CONSTITUTION: Liquid crystal display cell 10 formed with the electrodes to secure the display for the names of input keys is installed on lower polarization plate 11b. Then transparent input electrodes 13 for input keys are provided on panel 10 along with upper polarization plate 11a containing through-holes 14 opposing to electrodes 13. Furthermore, transparent elastic sheet 15 containing the mobile contact formed in the inner area opposing to electrode 13 with a gap secured is laminated onto plate 11a. Thus the mobile contact is pressed to electrode 13 to secure a contact, thus performing the key input action.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15795678A JPS5583922A (en) | 1978-12-21 | 1978-12-21 | Key input device |
US06/100,053 US4313108A (en) | 1978-12-07 | 1979-12-04 | Electric apparatus for displaying a plurality of key symbols on a single passive display |
GB7941993A GB2038055B (en) | 1978-12-07 | 1979-12-05 | Keyboard having passive display |
DE2949382A DE2949382C2 (en) | 1978-12-07 | 1979-12-07 | Electrical device having a keyboard and a display of key symbols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15795678A JPS5583922A (en) | 1978-12-21 | 1978-12-21 | Key input device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5583922A true JPS5583922A (en) | 1980-06-24 |
Family
ID=15661123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15795678A Pending JPS5583922A (en) | 1978-12-07 | 1978-12-21 | Key input device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5583922A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4814760A (en) * | 1984-12-28 | 1989-03-21 | Wang Laboratories, Inc. | Information display and entry device |
US5243332A (en) * | 1991-10-31 | 1993-09-07 | Massachusetts Institute Of Technology | Information entry and display |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5267918A (en) * | 1975-12-03 | 1977-06-06 | Matsushita Electric Ind Co Ltd | Chinese character input unit |
JPS52103042A (en) * | 1976-02-24 | 1977-08-29 | Sharp Corp | High frequency heating system |
-
1978
- 1978-12-21 JP JP15795678A patent/JPS5583922A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5267918A (en) * | 1975-12-03 | 1977-06-06 | Matsushita Electric Ind Co Ltd | Chinese character input unit |
JPS52103042A (en) * | 1976-02-24 | 1977-08-29 | Sharp Corp | High frequency heating system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4814760A (en) * | 1984-12-28 | 1989-03-21 | Wang Laboratories, Inc. | Information display and entry device |
US5243332A (en) * | 1991-10-31 | 1993-09-07 | Massachusetts Institute Of Technology | Information entry and display |
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